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eclipse / platform / eclipse.platform.swt / f9d6bb80b3e84d11df02f31ecd4d6bfb1008d18d / . / bundles / org.eclipse.swt / Eclipse SWT / win32 / org / eclipse / swt / widgets / Display.java
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/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.win32.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
/**
* Instances of this class are responsible for managing the
* connection between SWT and the underlying operating
* system. Their most important function is to implement
* the SWT event loop in terms of the platform event model.
* They also provide various methods for accessing information
* about the operating system, and have overall control over
* the operating system resources which SWT allocates.
* <p>
* Applications which are built with SWT will <em>almost always</em>
* require only a single display. In particular, some platforms
* which SWT supports will not allow more than one <em>active</em>
* display. In other words, some platforms do not support
* creating a new display if one already exists that has not been
* sent the <code>dispose()</code> message.
* <p>
* In SWT, the thread which creates a <code>Display</code>
* instance is distinguished as the <em>user-interface thread</em>
* for that display.
* </p>
* The user-interface thread for a particular display has the
* following special attributes:
* <ul>
* <li>
* The event loop for that display must be run from the thread.
* </li>
* <li>
* Some SWT API methods (notably, most of the public methods in
* <code>Widget</code> and its subclasses), may only be called
* from the thread. (To support multi-threaded user-interface
* applications, class <code>Display</code> provides inter-thread
* communication methods which allow threads other than the
* user-interface thread to request that it perform operations
* on their behalf.)
* </li>
* <li>
* The thread is not allowed to construct other
* <code>Display</code>s until that display has been disposed.
* (Note that, this is in addition to the restriction mentioned
* above concerning platform support for multiple displays. Thus,
* the only way to have multiple simultaneously active displays,
* even on platforms which support it, is to have multiple threads.)
* </li>
* </ul>
* Enforcing these attributes allows SWT to be implemented directly
* on the underlying operating system's event model. This has
* numerous benefits including smaller footprint, better use of
* resources, safer memory management, clearer program logic,
* better performance, and fewer overall operating system threads
* required. The down side however, is that care must be taken
* (only) when constructing multi-threaded applications to use the
* inter-thread communication mechanisms which this class provides
* when required.
* </p><p>
* All SWT API methods which may only be called from the user-interface
* thread are distinguished in their documentation by indicating that
* they throw the "<code>ERROR_THREAD_INVALID_ACCESS</code>"
* SWT exception.
* </p>
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>(none)</dd>
* <dt><b>Events:</b></dt>
* <dd>Close, Dispose, Settings</dd>
* </dl>
* <p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
* @see #syncExec
* @see #asyncExec
* @see #wake
* @see #readAndDispatch
* @see #sleep
* @see Device#dispose
* @see <a href="http://www.eclipse.org/swt/snippets/#display">Display snippets</a>
* @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
*/
public class Display extends Device {
/**
* the handle to the OS message queue
* (Warning: This field is platform dependent)
* <p>
* <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT
* public API. It is marked public only so that it can be shared
* within the packages provided by SWT. It is not available on all
* platforms and should never be accessed from application code.
* </p>
*/
public MSG msg = new MSG ();
/* Windows and Events */
Event [] eventQueue;
Callback windowCallback;
int /*long*/ windowProc;
int threadId;
TCHAR windowClass, windowShadowClass;
static int WindowClassCount;
static final String WindowName = "SWT_Window"; //$NON-NLS-1$
static final String WindowShadowName = "SWT_WindowShadow"; //$NON-NLS-1$
EventTable eventTable, filterTable;
/* Widget Table */
int freeSlot;
int [] indexTable;
Control lastControl, lastGetControl;
int /*long*/ lastHwnd, lastGetHwnd;
Control [] controlTable;
static final int GROW_SIZE = 1024;
static final int SWT_OBJECT_INDEX;
static final boolean USE_PROPERTY = !OS.IsWinCE;
static {
if (USE_PROPERTY) {
SWT_OBJECT_INDEX = OS.GlobalAddAtom (new TCHAR (0, "SWT_OBJECT_INDEX", true)); //$NON-NLS-1$
} else {
SWT_OBJECT_INDEX = 0;
}
}
/* Startup info */
static STARTUPINFO lpStartupInfo;
static {
if (!OS.IsWinCE) {
lpStartupInfo = new STARTUPINFO ();
lpStartupInfo.cb = STARTUPINFO.sizeof;
OS.GetStartupInfo (lpStartupInfo);
}
}
/* XP Themes */
int /*long*/ hButtonTheme, hEditTheme, hExplorerBarTheme, hScrollBarTheme, hTabTheme;
static final char [] BUTTON = new char [] {'B', 'U', 'T', 'T', 'O', 'N', 0};
static final char [] EDIT = new char [] {'E', 'D', 'I', 'T', 0};
static final char [] EXPLORER = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 0};
static final char [] EXPLORERBAR = new char [] {'E', 'X', 'P', 'L', 'O', 'R', 'E', 'R', 'B', 'A', 'R', 0};
static final char [] SCROLLBAR = new char [] {'S', 'C', 'R', 'O', 'L', 'L', 'B', 'A', 'R', 0};
static final char [] LISTVIEW = new char [] {'L', 'I', 'S', 'T', 'V', 'I', 'E', 'W', 0};
static final char [] TAB = new char [] {'T', 'A', 'B', 0};
static final char [] TREEVIEW = new char [] {'T', 'R', 'E', 'E', 'V', 'I', 'E', 'W', 0};
/* Focus */
int focusEvent;
Control focusControl;
/* Menus */
Menu [] bars, popups;
MenuItem [] items;
/*
* The start value for WM_COMMAND id's.
* Windows reserves the values 0..100.
*
* The SmartPhone SWT resource file reserves
* the values 101..107.
*/
static final int ID_START = 108;
/* Filter Hook */
Callback msgFilterCallback;
int /*long*/ msgFilterProc, filterHook;
MSG hookMsg = new MSG ();
boolean runDragDrop = true, dragCancelled = false;
/* Idle Hook */
Callback foregroundIdleCallback;
int /*long*/ foregroundIdleProc, idleHook;
/* Message Hook and Embedding */
boolean ignoreNextKey;
Callback getMsgCallback, embeddedCallback;
int /*long*/ getMsgProc, msgHook, embeddedHwnd, embeddedProc;
static final String AWT_WINDOW_CLASS = "SunAwtWindow"; //$NON-NLS-1$
static final short [] ACCENTS = new short [] {'~', '`', '\'', '^', '"'};
/* Sync/Async Widget Communication */
Synchronizer synchronizer = new Synchronizer (this);
boolean runMessages = true, runMessagesInIdle = false, runMessagesInMessageProc = true;
static final String RUN_MESSAGES_IN_IDLE_KEY = "org.eclipse.swt.internal.win32.runMessagesInIdle"; //$NON-NLS-1$
static final String RUN_MESSAGES_IN_MESSAGE_PROC_KEY = "org.eclipse.swt.internal.win32.runMessagesInMessageProc"; //$NON-NLS-1$
Thread thread;
/* Display Shutdown */
Runnable [] disposeList;
/* System Tray */
Tray tray;
int nextTrayId;
/* Timers */
int /*long*/ [] timerIds;
Runnable [] timerList;
int /*long*/ nextTimerId = SETTINGS_ID + 1;
static final int /*long*/ SETTINGS_ID = 100;
static final int SETTINGS_DELAY = 2000;
/* Keyboard and Mouse */
RECT clickRect;
int clickCount, lastTime, lastButton;
int /*long*/ lastClickHwnd;
int scrollRemainder;
int lastKey, lastAscii, lastMouse;
boolean lastVirtual, lastNull, lastDead;
byte [] keyboard = new byte [256];
boolean accelKeyHit, mnemonicKeyHit;
boolean lockActiveWindow, captureChanged, xMouse;
/* Tool Tips */
int nextToolTipId;
/* MDI */
boolean ignoreRestoreFocus;
Control lastHittestControl;
int lastHittest;
/* Message Only Window */
Callback messageCallback;
int /*long*/ hwndMessage, messageProc;
/* System Resources */
LOGFONT lfSystemFont;
Font systemFont;
Image errorImage, infoImage, questionImage, warningIcon;
Cursor [] cursors = new Cursor [SWT.CURSOR_HAND + 1];
Resource [] resources;
static final int RESOURCE_SIZE = 1 + 4 + SWT.CURSOR_HAND + 1;
/* ImageList Cache */
ImageList[] imageList, toolImageList, toolHotImageList, toolDisabledImageList;
/* Custom Colors for ChooseColor */
int /*long*/ lpCustColors;
/* Sort Indicators */
Image upArrow, downArrow;
/* Table */
char [] tableBuffer;
NMHDR hdr = new NMHDR ();
NMLVDISPINFO plvfi = new NMLVDISPINFO ();
int /*long*/ hwndParent;
int columnCount;
boolean [] columnVisible;
/* Resize and move recursion */
int resizeCount;
static final int RESIZE_LIMIT = 4;
/* Display Data */
Object data;
String [] keys;
Object [] values;
/* Key Mappings */
static final int [] [] KeyTable = {
/* Keyboard and Mouse Masks */
{OS.VK_MENU, SWT.ALT},
{OS.VK_SHIFT, SWT.SHIFT},
{OS.VK_CONTROL, SWT.CONTROL},
// {OS.VK_????, SWT.COMMAND},
/* NOT CURRENTLY USED */
// {OS.VK_LBUTTON, SWT.BUTTON1},
// {OS.VK_MBUTTON, SWT.BUTTON3},
// {OS.VK_RBUTTON, SWT.BUTTON2},
/* Non-Numeric Keypad Keys */
{OS.VK_UP, SWT.ARROW_UP},
{OS.VK_DOWN, SWT.ARROW_DOWN},
{OS.VK_LEFT, SWT.ARROW_LEFT},
{OS.VK_RIGHT, SWT.ARROW_RIGHT},
{OS.VK_PRIOR, SWT.PAGE_UP},
{OS.VK_NEXT, SWT.PAGE_DOWN},
{OS.VK_HOME, SWT.HOME},
{OS.VK_END, SWT.END},
{OS.VK_INSERT, SWT.INSERT},
/* Virtual and Ascii Keys */
{OS.VK_BACK, SWT.BS},
{OS.VK_RETURN, SWT.CR},
{OS.VK_DELETE, SWT.DEL},
{OS.VK_ESCAPE, SWT.ESC},
{OS.VK_RETURN, SWT.LF},
{OS.VK_TAB, SWT.TAB},
/* Functions Keys */
{OS.VK_F1, SWT.F1},
{OS.VK_F2, SWT.F2},
{OS.VK_F3, SWT.F3},
{OS.VK_F4, SWT.F4},
{OS.VK_F5, SWT.F5},
{OS.VK_F6, SWT.F6},
{OS.VK_F7, SWT.F7},
{OS.VK_F8, SWT.F8},
{OS.VK_F9, SWT.F9},
{OS.VK_F10, SWT.F10},
{OS.VK_F11, SWT.F11},
{OS.VK_F12, SWT.F12},
{OS.VK_F13, SWT.F13},
{OS.VK_F14, SWT.F14},
{OS.VK_F15, SWT.F15},
/* Numeric Keypad Keys */
{OS.VK_MULTIPLY, SWT.KEYPAD_MULTIPLY},
{OS.VK_ADD, SWT.KEYPAD_ADD},
{OS.VK_RETURN, SWT.KEYPAD_CR},
{OS.VK_SUBTRACT, SWT.KEYPAD_SUBTRACT},
{OS.VK_DECIMAL, SWT.KEYPAD_DECIMAL},
{OS.VK_DIVIDE, SWT.KEYPAD_DIVIDE},
{OS.VK_NUMPAD0, SWT.KEYPAD_0},
{OS.VK_NUMPAD1, SWT.KEYPAD_1},
{OS.VK_NUMPAD2, SWT.KEYPAD_2},
{OS.VK_NUMPAD3, SWT.KEYPAD_3},
{OS.VK_NUMPAD4, SWT.KEYPAD_4},
{OS.VK_NUMPAD5, SWT.KEYPAD_5},
{OS.VK_NUMPAD6, SWT.KEYPAD_6},
{OS.VK_NUMPAD7, SWT.KEYPAD_7},
{OS.VK_NUMPAD8, SWT.KEYPAD_8},
{OS.VK_NUMPAD9, SWT.KEYPAD_9},
// {OS.VK_????, SWT.KEYPAD_EQUAL},
/* Other keys */
{OS.VK_CAPITAL, SWT.CAPS_LOCK},
{OS.VK_NUMLOCK, SWT.NUM_LOCK},
{OS.VK_SCROLL, SWT.SCROLL_LOCK},
{OS.VK_PAUSE, SWT.PAUSE},
{OS.VK_CANCEL, SWT.BREAK},
{OS.VK_SNAPSHOT, SWT.PRINT_SCREEN},
// {OS.VK_????, SWT.HELP},
};
/* Multiple Displays */
static Display Default;
static Display [] Displays = new Display [4];
/* Multiple Monitors */
Monitor[] monitors = null;
int monitorCount = 0;
/* Modality */
Shell [] modalShells;
Dialog modalDialog;
static boolean TrimEnabled = false;
/* Private SWT Window Messages */
static final int SWT_GETACCELCOUNT = OS.WM_APP;
static final int SWT_GETACCEL = OS.WM_APP + 1;
static final int SWT_KEYMSG = OS.WM_APP + 2;
static final int SWT_DESTROY = OS.WM_APP + 3;
static final int SWT_TRAYICONMSG = OS.WM_APP + 4;
static final int SWT_NULL = OS.WM_APP + 5;
static final int SWT_RUNASYNC = OS.WM_APP + 6;
static int SWT_TASKBARCREATED;
static int SWT_RESTORECARET;
static int DI_GETDRAGIMAGE;
/* Workaround for Adobe Reader 7.0 */
int hitCount;
/* Package Name */
static final String PACKAGE_PREFIX = "org.eclipse.swt.widgets."; //$NON-NLS-1$
/*
* This code is intentionally commented. In order
* to support CLDC, .class cannot be used because
* it does not compile on some Java compilers when
* they are targeted for CLDC.
*/
// static {
// String name = Display.class.getName ();
// int index = name.lastIndexOf ('.');
// PACKAGE_PREFIX = name.substring (0, index + 1);
// }
/*
* TEMPORARY CODE. Install the runnable that
* gets the current display. This code will
* be removed in the future.
*/
static {
DeviceFinder = new Runnable () {
public void run () {
Device device = getCurrent ();
if (device == null) {
device = getDefault ();
}
setDevice (device);
}
};
}
/*
* TEMPORARY CODE.
*/
static void setDevice (Device device) {
CurrentDevice = device;
}
/**
* Constructs a new instance of this class.
* <p>
* Note: The resulting display is marked as the <em>current</em>
* display. If this is the first display which has been
* constructed since the application started, it is also
* marked as the <em>default</em> display.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if called from a thread that already created an existing display</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see #getCurrent
* @see #getDefault
* @see Widget#checkSubclass
* @see Shell
*/
public Display () {
this (null);
}
/**
* Constructs a new instance of this class using the parameter.
*
* @param data the device data
*/
public Display (DeviceData data) {
super (data);
}
Control _getFocusControl () {
return findControl (OS.GetFocus ());
}
void addBar (Menu menu) {
if (bars == null) bars = new Menu [4];
int length = bars.length;
for (int i=0; i<length; i++) {
if (bars [i] == menu) return;
}
int index = 0;
while (index < length) {
if (bars [index] == null) break;
index++;
}
if (index == length) {
Menu [] newBars = new Menu [length + 4];
System.arraycopy (bars, 0, newBars, 0, length);
bars = newBars;
}
bars [index] = menu;
}
void addControl (int /*long*/ handle, Control control) {
if (handle == 0) return;
if (freeSlot == -1) {
int length = (freeSlot = indexTable.length) + GROW_SIZE;
int [] newIndexTable = new int [length];
Control [] newControlTable = new Control [length];
System.arraycopy (indexTable, 0, newIndexTable, 0, freeSlot);
System.arraycopy (controlTable, 0, newControlTable, 0, freeSlot);
for (int i=freeSlot; i<length-1; i++) newIndexTable [i] = i + 1;
newIndexTable [length - 1] = -1;
indexTable = newIndexTable;
controlTable = newControlTable;
}
if (USE_PROPERTY) {
OS.SetProp (handle, SWT_OBJECT_INDEX, freeSlot + 1);
} else {
OS.SetWindowLongPtr (handle, OS.GWLP_USERDATA, freeSlot + 1);
}
int oldSlot = freeSlot;
freeSlot = indexTable [oldSlot];
indexTable [oldSlot] = -2;
controlTable [oldSlot] = control;
}
/**
* Adds the listener to the collection of listeners who will
* be notified when an event of the given type occurs anywhere
* in a widget. The event type is one of the event constants
* defined in class <code>SWT</code>. When the event does occur,
* the listener is notified by sending it the <code>handleEvent()</code>
* message.
* <p>
* Setting the type of an event to <code>SWT.None</code> from
* within the <code>handleEvent()</code> method can be used to
* change the event type and stop subsequent Java listeners
* from running. Because event filters run before other listeners,
* event filters can both block other listeners and set arbitrary
* fields within an event. For this reason, event filters are both
* powerful and dangerous. They should generally be avoided for
* performance, debugging and code maintenance reasons.
* </p>
*
* @param eventType the type of event to listen for
* @param listener the listener which should be notified when the event occurs
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #removeFilter
* @see #removeListener
*
* @since 3.0
*/
public void addFilter (int eventType, Listener listener) {
checkDevice ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (filterTable == null) filterTable = new EventTable ();
filterTable.hook (eventType, listener);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when an event of the given type occurs. The event
* type is one of the event constants defined in class <code>SWT</code>.
* When the event does occur in the display, the listener is notified by
* sending it the <code>handleEvent()</code> message.
*
* @param eventType the type of event to listen for
* @param listener the listener which should be notified when the event occurs
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #removeListener
*
* @since 2.0
*/
public void addListener (int eventType, Listener listener) {
checkDevice ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) eventTable = new EventTable ();
eventTable.hook (eventType, listener);
}
void addMenuItem (MenuItem item) {
if (items == null) items = new MenuItem [64];
for (int i=0; i<items.length; i++) {
if (items [i] == null) {
item.id = i + ID_START;
items [i] = item;
return;
}
}
item.id = items.length + ID_START;
MenuItem [] newItems = new MenuItem [items.length + 64];
newItems [items.length] = item;
System.arraycopy (items, 0, newItems, 0, items.length);
items = newItems;
}
void addPopup (Menu menu) {
if (popups == null) popups = new Menu [4];
int length = popups.length;
for (int i=0; i<length; i++) {
if (popups [i] == menu) return;
}
int index = 0;
while (index < length) {
if (popups [index] == null) break;
index++;
}
if (index == length) {
Menu [] newPopups = new Menu [length + 4];
System.arraycopy (popups, 0, newPopups, 0, length);
popups = newPopups;
}
popups [index] = menu;
}
int asciiKey (int key) {
if (OS.IsWinCE) return 0;
/* Get the current keyboard. */
for (int i=0; i<keyboard.length; i++) keyboard [i] = 0;
if (!OS.GetKeyboardState (keyboard)) return 0;
/* Translate the key to ASCII or UNICODE using the virtual keyboard */
if (OS.IsUnicode) {
char [] result = new char [1];
if (OS.ToUnicode (key, key, keyboard, result, 1, 0) == 1) return result [0];
} else {
short [] result = new short [1];
if (OS.ToAscii (key, key, keyboard, result, 0) == 1) return result [0];
}
return 0;
}
/**
* Causes the <code>run()</code> method of the runnable to
* be invoked by the user-interface thread at the next
* reasonable opportunity. The caller of this method continues
* to run in parallel, and is not notified when the
* runnable has completed. Specifying <code>null</code> as the
* runnable simply wakes the user-interface thread when run.
* <p>
* Note that at the time the runnable is invoked, widgets
* that have the receiver as their display may have been
* disposed. Therefore, it is necessary to check for this
* case inside the runnable before accessing the widget.
* </p>
*
* @param runnable code to run on the user-interface thread or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #syncExec
*/
public void asyncExec (Runnable runnable) {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
synchronizer.asyncExec (runnable);
}
}
/**
* Causes the system hardware to emit a short sound
* (if it supports this capability).
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public void beep () {
checkDevice ();
OS.MessageBeep (OS.MB_OK);
}
/**
* Checks that this class can be subclassed.
* <p>
* IMPORTANT: See the comment in <code>Widget.checkSubclass()</code>.
* </p>
*
* @exception SWTException <ul>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see Widget#checkSubclass
*/
protected void checkSubclass () {
if (!isValidClass (getClass ())) error (SWT.ERROR_INVALID_SUBCLASS);
}
protected void checkDevice () {
if (thread == null) error (SWT.ERROR_WIDGET_DISPOSED);
if (thread != Thread.currentThread ()) {
/*
* Bug in IBM JVM 1.6. For some reason, under
* conditions that are yet to be full understood,
* Thread.currentThread() is either returning null
* or a different instance from the one that was
* saved when the Display was created. This is
* possibly a JIT problem because modifying this
* method to print logging information when the
* error happens seems to fix the problem. The
* fix is to use operating system calls to verify
* that the current thread is not the Display thread.
*
* NOTE: Despite the fact that Thread.currentThread()
* is used in other places, the failure has not been
* observed in all places where it is called.
*/
if (threadId != OS.GetCurrentThreadId ()) {
error (SWT.ERROR_THREAD_INVALID_ACCESS);
}
}
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
}
static void checkDisplay (Thread thread, boolean multiple) {
synchronized (Device.class) {
for (int i=0; i<Displays.length; i++) {
if (Displays [i] != null) {
if (!multiple) SWT.error (SWT.ERROR_NOT_IMPLEMENTED, null, " [multiple displays]"); //$NON-NLS-1$
if (Displays [i].thread == thread) SWT.error (SWT.ERROR_THREAD_INVALID_ACCESS);
}
}
}
}
void clearModal (Shell shell) {
if (modalShells == null) return;
int index = 0, length = modalShells.length;
while (index < length) {
if (modalShells [index] == shell) break;
if (modalShells [index] == null) return;
index++;
}
if (index == length) return;
System.arraycopy (modalShells, index + 1, modalShells, index, --length - index);
modalShells [length] = null;
if (index == 0 && modalShells [0] == null) modalShells = null;
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) shells [i].updateModal ();
}
int controlKey (int key) {
int upper = (int)/*64*/OS.CharUpper ((short) key);
if (64 <= upper && upper <= 95) return upper & 0xBF;
return key;
}
/**
* Requests that the connection between SWT and the underlying
* operating system be closed.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Device#dispose
*
* @since 2.0
*/
public void close () {
checkDevice ();
Event event = new Event ();
sendEvent (SWT.Close, event);
if (event.doit) dispose ();
}
/**
* Creates the device in the operating system. If the device
* does not have a handle, this method may do nothing depending
* on the device.
* <p>
* This method is called before <code>init</code>.
* </p>
*
* @param data the DeviceData which describes the receiver
*
* @see #init
*/
protected void create (DeviceData data) {
checkSubclass ();
checkDisplay (thread = Thread.currentThread (), true);
createDisplay (data);
register (this);
if (Default == null) Default = this;
}
void createDisplay (DeviceData data) {
}
static int /*long*/ create32bitDIB (Image image) {
int transparentPixel = -1, alpha = -1;
int /*long*/ hMask = 0, hBitmap = 0;
byte[] alphaData = null;
switch (image.type) {
case SWT.ICON:
ICONINFO info = new ICONINFO ();
OS.GetIconInfo (image.handle, info);
hBitmap = info.hbmColor;
hMask = info.hbmMask;
break;
case SWT.BITMAP:
ImageData data = image.getImageData ();
hBitmap = image.handle;
alpha = data.alpha;
alphaData = data.alphaData;
transparentPixel = data.transparentPixel;
break;
}
BITMAP bm = new BITMAP ();
OS.GetObject (hBitmap, BITMAP.sizeof, bm);
int imgWidth = bm.bmWidth;
int imgHeight = bm.bmHeight;
int /*long*/ hDC = OS.GetDC (0);
int /*long*/ srcHdc = OS.CreateCompatibleDC (hDC);
int /*long*/ oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap);
int /*long*/ memHdc = OS.CreateCompatibleDC (hDC);
BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER ();
bmiHeader.biSize = BITMAPINFOHEADER.sizeof;
bmiHeader.biWidth = imgWidth;
bmiHeader.biHeight = -imgHeight;
bmiHeader.biPlanes = 1;
bmiHeader.biBitCount = (short)32;
bmiHeader.biCompression = OS.BI_RGB;
byte [] bmi = new byte [BITMAPINFOHEADER.sizeof];
OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof);
int /*long*/ [] pBits = new int /*long*/ [1];
int /*long*/ memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0);
if (memDib == 0) SWT.error (SWT.ERROR_NO_HANDLES);
int /*long*/ oldMemBitmap = OS.SelectObject (memHdc, memDib);
BITMAP dibBM = new BITMAP ();
OS.GetObject (memDib, BITMAP.sizeof, dibBM);
int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight;
OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY);
byte red = 0, green = 0, blue = 0;
if (transparentPixel != -1) {
if (bm.bmBitsPixel <= 8) {
byte [] color = new byte [4];
OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color);
blue = color [0];
green = color [1];
red = color [2];
} else {
switch (bm.bmBitsPixel) {
case 16:
blue = (byte)((transparentPixel & 0x1F) << 3);
green = (byte)((transparentPixel & 0x3E0) >> 2);
red = (byte)((transparentPixel & 0x7C00) >> 7);
break;
case 24:
blue = (byte)((transparentPixel & 0xFF0000) >> 16);
green = (byte)((transparentPixel & 0xFF00) >> 8);
red = (byte)(transparentPixel & 0xFF);
break;
case 32:
blue = (byte)((transparentPixel & 0xFF000000) >>> 24);
green = (byte)((transparentPixel & 0xFF0000) >> 16);
red = (byte)((transparentPixel & 0xFF00) >> 8);
break;
}
}
}
byte [] srcData = new byte [sizeInBytes];
OS.MoveMemory (srcData, pBits [0], sizeInBytes);
if (hMask != 0) {
OS.SelectObject(srcHdc, hMask);
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
if (OS.GetPixel(srcHdc, x, y) != 0) {
srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData[dp + 3] = (byte)0;
} else {
srcData[dp + 3] = (byte)0xFF;
}
dp += 4;
}
}
} else if (alpha != -1) {
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
int r = ((srcData[dp + 0] & 0xFF) * alpha) + 128;
r = (r + (r >> 8)) >> 8;
int g = ((srcData[dp + 1] & 0xFF) * alpha) + 128;
g = (g + (g >> 8)) >> 8;
int b = ((srcData[dp + 2] & 0xFF) * alpha) + 128;
b = (b + (b >> 8)) >> 8;
srcData[dp+0] = (byte)r;
srcData[dp+1] = (byte)g;
srcData[dp+2] = (byte)b;
srcData[dp+3] = (byte)alpha;
dp += 4;
}
}
} else if (alphaData != null) {
for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
int a = alphaData[ap++] & 0xFF;
int r = ((srcData[dp + 0] & 0xFF) * a) + 128;
r = (r + (r >> 8)) >> 8;
int g = ((srcData[dp + 1] & 0xFF) * a) + 128;
g = (g + (g >> 8)) >> 8;
int b = ((srcData[dp + 2] & 0xFF) * a) + 128;
b = (b + (b >> 8)) >> 8;
srcData[dp+0] = (byte)r;
srcData[dp+1] = (byte)g;
srcData[dp+2] = (byte)b;
srcData[dp+3] = (byte)a;
dp += 4;
}
}
} else if (transparentPixel != -1) {
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
if (srcData [dp] == blue && srcData [dp + 1] == green && srcData [dp + 2] == red) {
srcData [dp + 0] = srcData [dp + 1] = srcData [dp + 2] = srcData [dp + 3] = (byte)0;
} else {
srcData [dp + 3] = (byte)0xFF;
}
dp += 4;
}
}
} else {
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
srcData [dp + 3] = (byte)0xFF;
dp += 4;
}
}
}
OS.MoveMemory (pBits [0], srcData, sizeInBytes);
OS.SelectObject (srcHdc, oldSrcBitmap);
OS.SelectObject (memHdc, oldMemBitmap);
OS.DeleteObject (srcHdc);
OS.DeleteObject (memHdc);
OS.ReleaseDC (0, hDC);
if (hBitmap != image.handle && hBitmap != 0) OS.DeleteObject (hBitmap);
if (hMask != 0) OS.DeleteObject (hMask);
return memDib;
}
static int /*long*/ create32bitDIB (int /*long*/ hBitmap, int alpha, byte [] alphaData, int transparentPixel) {
BITMAP bm = new BITMAP ();
OS.GetObject (hBitmap, BITMAP.sizeof, bm);
int imgWidth = bm.bmWidth;
int imgHeight = bm.bmHeight;
int /*long*/ hDC = OS.GetDC (0);
int /*long*/ srcHdc = OS.CreateCompatibleDC (hDC);
int /*long*/ oldSrcBitmap = OS.SelectObject (srcHdc, hBitmap);
int /*long*/ memHdc = OS.CreateCompatibleDC (hDC);
BITMAPINFOHEADER bmiHeader = new BITMAPINFOHEADER ();
bmiHeader.biSize = BITMAPINFOHEADER.sizeof;
bmiHeader.biWidth = imgWidth;
bmiHeader.biHeight = -imgHeight;
bmiHeader.biPlanes = 1;
bmiHeader.biBitCount = (short)32;
bmiHeader.biCompression = OS.BI_RGB;
byte [] bmi = new byte [BITMAPINFOHEADER.sizeof];
OS.MoveMemory (bmi, bmiHeader, BITMAPINFOHEADER.sizeof);
int /*long*/ [] pBits = new int /*long*/ [1];
int /*long*/ memDib = OS.CreateDIBSection (0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0);
if (memDib == 0) SWT.error (SWT.ERROR_NO_HANDLES);
int /*long*/ oldMemBitmap = OS.SelectObject (memHdc, memDib);
BITMAP dibBM = new BITMAP ();
OS.GetObject (memDib, BITMAP.sizeof, dibBM);
int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight;
OS.BitBlt (memHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY);
byte red = 0, green = 0, blue = 0;
if (transparentPixel != -1) {
if (bm.bmBitsPixel <= 8) {
byte [] color = new byte [4];
OS.GetDIBColorTable (srcHdc, transparentPixel, 1, color);
blue = color [0];
green = color [1];
red = color [2];
} else {
switch (bm.bmBitsPixel) {
case 16:
blue = (byte)((transparentPixel & 0x1F) << 3);
green = (byte)((transparentPixel & 0x3E0) >> 2);
red = (byte)((transparentPixel & 0x7C00) >> 7);
break;
case 24:
blue = (byte)((transparentPixel & 0xFF0000) >> 16);
green = (byte)((transparentPixel & 0xFF00) >> 8);
red = (byte)(transparentPixel & 0xFF);
break;
case 32:
blue = (byte)((transparentPixel & 0xFF000000) >>> 24);
green = (byte)((transparentPixel & 0xFF0000) >> 16);
red = (byte)((transparentPixel & 0xFF00) >> 8);
break;
}
}
}
OS.SelectObject (srcHdc, oldSrcBitmap);
OS.SelectObject (memHdc, oldMemBitmap);
OS.DeleteObject (srcHdc);
OS.DeleteObject (memHdc);
OS.ReleaseDC (0, hDC);
byte [] srcData = new byte [sizeInBytes];
OS.MoveMemory (srcData, pBits [0], sizeInBytes);
if (alpha != -1) {
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
srcData [dp + 3] = (byte)alpha;
dp += 4;
}
}
} else if (alphaData != null) {
for (int y = 0, dp = 0, ap = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
srcData [dp + 3] = alphaData [ap++];
dp += 4;
}
}
} else if (transparentPixel != -1) {
for (int y = 0, dp = 0; y < imgHeight; ++y) {
for (int x = 0; x < imgWidth; ++x) {
if (srcData [dp] == blue && srcData [dp + 1] == green && srcData [dp + 2] == red) {
srcData [dp + 3] = (byte)0;
} else {
srcData [dp + 3] = (byte)0xFF;
}
dp += 4;
}
}
}
OS.MoveMemory (pBits [0], srcData, sizeInBytes);
return memDib;
}
static Image createIcon (Image image) {
Device device = image.getDevice ();
ImageData data = image.getImageData ();
if (data.alpha == -1 && data.alphaData == null) {
ImageData mask = data.getTransparencyMask ();
return new Image (device, data, mask);
}
int width = data.width, height = data.height;
int /*long*/ hMask, hBitmap;
int /*long*/ hDC = device.internal_new_GC (null);
int /*long*/ dstHdc = OS.CreateCompatibleDC (hDC), oldDstBitmap;
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) {
hBitmap = Display.create32bitDIB (image.handle, data.alpha, data.alphaData, data.transparentPixel);
hMask = OS.CreateBitmap (width, height, 1, 1, null);
oldDstBitmap = OS.SelectObject (dstHdc, hMask);
OS.PatBlt (dstHdc, 0, 0, width, height, OS.BLACKNESS);
} else {
hMask = Display.createMaskFromAlpha (data, width, height);
/* Icons need black pixels where the mask is transparent */
hBitmap = OS.CreateCompatibleBitmap (hDC, width, height);
oldDstBitmap = OS.SelectObject (dstHdc, hBitmap);
int /*long*/ srcHdc = OS.CreateCompatibleDC (hDC);
int /*long*/ oldSrcBitmap = OS.SelectObject (srcHdc, image.handle);
OS.PatBlt (dstHdc, 0, 0, width, height, OS.BLACKNESS);
OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCINVERT);
OS.SelectObject (srcHdc, hMask);
OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCAND);
OS.SelectObject (srcHdc, image.handle);
OS.BitBlt (dstHdc, 0, 0, width, height, srcHdc, 0, 0, OS.SRCINVERT);
OS.SelectObject (srcHdc, oldSrcBitmap);
OS.DeleteDC (srcHdc);
}
OS.SelectObject (dstHdc, oldDstBitmap);
OS.DeleteDC (dstHdc);
device.internal_dispose_GC (hDC, null);
ICONINFO info = new ICONINFO ();
info.fIcon = true;
info.hbmColor = hBitmap;
info.hbmMask = hMask;
int /*long*/ hIcon = OS.CreateIconIndirect (info);
if (hIcon == 0) SWT.error(SWT.ERROR_NO_HANDLES);
OS.DeleteObject (hBitmap);
OS.DeleteObject (hMask);
return Image.win32_new (device, SWT.ICON, hIcon);
}
static int /*long*/ createMaskFromAlpha (ImageData data, int destWidth, int destHeight) {
int srcWidth = data.width;
int srcHeight = data.height;
ImageData mask = ImageData.internal_new (srcWidth, srcHeight, 1,
new PaletteData(new RGB [] {new RGB (0, 0, 0), new RGB (0xff, 0xff, 0xff)}),
2, null, 1, null, null, -1, -1, -1, 0, 0, 0, 0);
int ap = 0;
for (int y = 0; y < mask.height; y++) {
for (int x = 0; x < mask.width; x++) {
mask.setPixel (x, y, (data.alphaData [ap++] & 0xff) <= 127 ? 1 : 0);
}
}
int /*long*/ hMask = OS.CreateBitmap (srcWidth, srcHeight, 1, 1, mask.data);
if (srcWidth != destWidth || srcHeight != destHeight) {
int /*long*/ hdc = OS.GetDC (0);
int /*long*/ hdc1 = OS.CreateCompatibleDC (hdc);
OS.SelectObject (hdc1, hMask);
int /*long*/ hdc2 = OS.CreateCompatibleDC (hdc);
int /*long*/ hMask2 = OS.CreateBitmap (destWidth, destHeight, 1, 1, null);
OS.SelectObject (hdc2, hMask2);
if (!OS.IsWinCE) OS.SetStretchBltMode(hdc2, OS.COLORONCOLOR);
OS.StretchBlt (hdc2, 0, 0, destWidth, destHeight, hdc1, 0, 0, srcWidth, srcHeight, OS.SRCCOPY);
OS.DeleteDC (hdc1);
OS.DeleteDC (hdc2);
OS.ReleaseDC (0, hdc);
OS.DeleteObject(hMask);
hMask = hMask2;
}
return hMask;
}
static void deregister (Display display) {
synchronized (Device.class) {
for (int i=0; i<Displays.length; i++) {
if (display == Displays [i]) Displays [i] = null;
}
}
}
/**
* Destroys the device in the operating system and releases
* the device's handle. If the device does not have a handle,
* this method may do nothing depending on the device.
* <p>
* This method is called after <code>release</code>.
* </p>
* @see Device#dispose
* @see #release
*/
protected void destroy () {
if (this == Default) Default = null;
deregister (this);
destroyDisplay ();
}
void destroyDisplay () {
}
/**
* Causes the <code>run()</code> method of the runnable to
* be invoked by the user-interface thread just before the
* receiver is disposed. Specifying a <code>null</code> runnable
* is ignored.
*
* @param runnable code to run at dispose time.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public void disposeExec (Runnable runnable) {
checkDevice ();
if (disposeList == null) disposeList = new Runnable [4];
for (int i=0; i<disposeList.length; i++) {
if (disposeList [i] == null) {
disposeList [i] = runnable;
return;
}
}
Runnable [] newDisposeList = new Runnable [disposeList.length + 4];
System.arraycopy (disposeList, 0, newDisposeList, 0, disposeList.length);
newDisposeList [disposeList.length] = runnable;
disposeList = newDisposeList;
}
void drawMenuBars () {
if (bars == null) return;
for (int i=0; i<bars.length; i++) {
Menu menu = bars [i];
if (menu != null && !menu.isDisposed ()) menu.update ();
}
bars = null;
}
int /*long*/ embeddedProc (int /*long*/ hwnd, int /*long*/ msg, int /*long*/ wParam, int /*long*/ lParam) {
switch ((int)/*64*/msg) {
case SWT_KEYMSG: {
MSG keyMsg = new MSG ();
OS.MoveMemory (keyMsg, lParam, MSG.sizeof);
OS.TranslateMessage (keyMsg);
OS.DispatchMessage (keyMsg);
int /*long*/ hHeap = OS.GetProcessHeap ();
OS.HeapFree (hHeap, 0, lParam);
break;
}
case SWT_DESTROY: {
OS.DestroyWindow (hwnd);
if (embeddedCallback != null) embeddedCallback.dispose ();
if (getMsgCallback != null) getMsgCallback.dispose ();
embeddedCallback = getMsgCallback = null;
embeddedProc = getMsgProc = 0;
break;
}
}
return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
/**
* Does whatever display specific cleanup is required, and then
* uses the code in <code>SWTError.error</code> to handle the error.
*
* @param code the descriptive error code
*
* @see SWT#error(int)
*/
void error (int code) {
SWT.error (code);
}
boolean filterEvent (Event event) {
if (filterTable != null) filterTable.sendEvent (event);
return false;
}
boolean filters (int eventType) {
if (filterTable == null) return false;
return filterTable.hooks (eventType);
}
boolean filterMessage (MSG msg) {
int message = msg.message;
if (OS.WM_KEYFIRST <= message && message <= OS.WM_KEYLAST) {
Control control = findControl (msg.hwnd);
if (control != null) {
if (translateAccelerator (msg, control) || translateMnemonic (msg, control) || translateTraversal (msg, control)) {
lastAscii = lastKey = 0;
lastVirtual = lastNull = lastDead = false;
return true;
}
}
}
return false;
}
Control findControl (int /*long*/ handle) {
if (handle == 0) return null;
int /*long*/ hwndOwner = 0;
do {
Control control = getControl (handle);
if (control != null) return control;
hwndOwner = OS.GetWindow (handle, OS.GW_OWNER);
handle = OS.GetParent (handle);
} while (handle != 0 && handle != hwndOwner);
return null;
}
/**
* Given the operating system handle for a widget, returns
* the instance of the <code>Widget</code> subclass which
* represents it in the currently running application, if
* such exists, or null if no matching widget can be found.
* <p>
* <b>IMPORTANT:</b> This method should not be called from
* application code. The arguments are platform-specific.
* </p>
*
* @param handle the handle for the widget
* @return the SWT widget that the handle represents
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Widget findWidget (int /*long*/ handle) {
checkDevice ();
return getControl (handle);
}
/**
* Given the operating system handle for a widget,
* and widget-specific id, returns the instance of
* the <code>Widget</code> subclass which represents
* the handle/id pair in the currently running application,
* if such exists, or null if no matching widget can be found.
* <p>
* <b>IMPORTANT:</b> This method should not be called from
* application code. The arguments are platform-specific.
* </p>
*
* @param handle the handle for the widget
* @param id the id for the subwidget (usually an item)
* @return the SWT widget that the handle/id pair represents
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.1
*/
public Widget findWidget (int /*long*/ handle, int /*long*/ id) {
checkDevice ();
//TODO - should ids be long
Control control = getControl (handle);
return control != null ? control.findItem (id) : null;
}
/**
* Given a widget and a widget-specific id, returns the
* instance of the <code>Widget</code> subclass which represents
* the widget/id pair in the currently running application,
* if such exists, or null if no matching widget can be found.
*
* @param widget the widget
* @param id the id for the subwidget (usually an item)
* @return the SWT subwidget (usually an item) that the widget/id pair represents
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.3
*/
public Widget findWidget (Widget widget, int /*long*/ id) {
checkDevice ();
//TODO - should ids be long
if (widget instanceof Control) {
return findWidget (((Control) widget).handle, id);
}
return null;
}
int /*long*/ foregroundIdleProc (int /*long*/ code, int /*long*/ wParam, int /*long*/ lParam) {
if (code >= 0) {
if (runMessages && getMessageCount () != 0) {
if (runMessagesInIdle) {
if (runMessagesInMessageProc) {
OS.PostMessage (hwndMessage, SWT_RUNASYNC, 0, 0);
} else {
runAsyncMessages (false);
}
}
wakeThread ();
}
}
return OS.CallNextHookEx (idleHook, (int)/*64*/code, wParam, lParam);
}
/**
* Returns the display which the given thread is the
* user-interface thread for, or null if the given thread
* is not a user-interface thread for any display. Specifying
* <code>null</code> as the thread will return <code>null</code>
* for the display.
*
* @param thread the user-interface thread
* @return the display for the given thread
*/
public static Display findDisplay (Thread thread) {
synchronized (Device.class) {
for (int i=0; i<Displays.length; i++) {
Display display = Displays [i];
if (display != null && display.thread == thread) {
return display;
}
}
return null;
}
}
/**
* Returns the currently active <code>Shell</code>, or null
* if no shell belonging to the currently running application
* is active.
*
* @return the active shell or null
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Shell getActiveShell () {
checkDevice ();
Control control = findControl (OS.GetActiveWindow ());
return control != null ? control.getShell () : null;
}
/**
* Returns a rectangle describing the receiver's size and location. Note that
* on multi-monitor systems the origin can be negative.
*
* @return the bounding rectangle
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Rectangle getBounds () {
checkDevice ();
if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) {
int width = OS.GetSystemMetrics (OS.SM_CXSCREEN);
int height = OS.GetSystemMetrics (OS.SM_CYSCREEN);
return new Rectangle (0, 0, width, height);
}
int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN);
int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN);
int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN);
int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN);
return new Rectangle (x, y, width, height);
}
/**
* Returns the display which the currently running thread is
* the user-interface thread for, or null if the currently
* running thread is not a user-interface thread for any display.
*
* @return the current display
*/
public static Display getCurrent () {
return findDisplay (Thread.currentThread ());
}
int getClickCount (int type, int button, int /*long*/ hwnd, int /*long*/ lParam) {
switch (type) {
case SWT.MouseDown:
int doubleClick = OS.GetDoubleClickTime ();
if (clickRect == null) clickRect = new RECT ();
int deltaTime = Math.abs (lastTime - getLastEventTime ());
POINT pt = new POINT ();
OS.POINTSTOPOINT (pt, lParam);
if (lastClickHwnd == hwnd && lastButton == button && (deltaTime <= doubleClick) && OS.PtInRect (clickRect, pt)) {
clickCount++;
} else {
clickCount = 1;
}
//FALL THROUGH
case SWT.MouseDoubleClick:
lastButton = button;
lastClickHwnd = hwnd;
lastTime = getLastEventTime ();
int xInset = OS.GetSystemMetrics (OS.SM_CXDOUBLECLK) / 2;
int yInset = OS.GetSystemMetrics (OS.SM_CYDOUBLECLK) / 2;
int x = OS.GET_X_LPARAM (lParam), y = OS.GET_Y_LPARAM (lParam);
OS.SetRect (clickRect, x - xInset, y - yInset, x + xInset, y + yInset);
//FALL THROUGH
case SWT.MouseUp:
return clickCount;
}
return 0;
}
/**
* Returns a rectangle which describes the area of the
* receiver which is capable of displaying data.
*
* @return the client area
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #getBounds
*/
public Rectangle getClientArea () {
checkDevice ();
if (OS.GetSystemMetrics (OS.SM_CMONITORS) < 2) {
RECT rect = new RECT ();
OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0);
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
return new Rectangle (rect.left, rect.top, width, height);
}
int x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN);
int y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN);
int width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN);
int height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN);
return new Rectangle (x, y, width, height);
}
Control getControl (int /*long*/ handle) {
if (handle == 0) return null;
if (lastControl != null && lastHwnd == handle) {
return lastControl;
}
if (lastGetControl != null && lastGetHwnd == handle) {
return lastGetControl;
}
int index;
if (USE_PROPERTY) {
index = (int)/*64*/OS.GetProp (handle, SWT_OBJECT_INDEX) - 1;
} else {
index = (int)/*64*/OS.GetWindowLongPtr (handle, OS.GWLP_USERDATA) - 1;
}
if (0 <= index && index < controlTable.length) {
Control control = controlTable [index];
/*
* Because GWL_USERDATA can be used by native widgets that
* do not belong to SWT, it is possible that GWL_USERDATA
* could return an index that is in the range of the table,
* but was not put there by SWT. Therefore, it is necessary
* to check the handle of the control that is in the table
* against the handle that provided the GWL_USERDATA.
*/
if (control != null && control.checkHandle (handle)) {
lastGetHwnd = handle;
lastGetControl = control;
return control;
}
}
return null;
}
/**
* Returns the control which the on-screen pointer is currently
* over top of, or null if it is not currently over one of the
* controls built by the currently running application.
*
* @return the control under the cursor
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Control getCursorControl () {
checkDevice ();
POINT pt = new POINT ();
if (!OS.GetCursorPos (pt)) return null;
return findControl (OS.WindowFromPoint (pt));
}
/**
* Returns the location of the on-screen pointer relative
* to the top left corner of the screen.
*
* @return the cursor location
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Point getCursorLocation () {
checkDevice ();
POINT pt = new POINT ();
OS.GetCursorPos (pt);
return new Point (pt.x, pt.y);
}
/**
* Returns an array containing the recommended cursor sizes.
*
* @return the array of cursor sizes
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*/
public Point [] getCursorSizes () {
checkDevice ();
return new Point [] {
new Point (OS.GetSystemMetrics (OS.SM_CXCURSOR), OS.GetSystemMetrics (OS.SM_CYCURSOR))};
}
/**
* Returns the default display. One is created (making the
* thread that invokes this method its user-interface thread)
* if it did not already exist.
*
* @return the default display
*/
public static Display getDefault () {
synchronized (Device.class) {
if (Default == null) Default = new Display ();
return Default;
}
}
static boolean isValidClass (Class clazz) {
String name = clazz.getName ();
int index = name.lastIndexOf ('.');
return name.substring (0, index + 1).equals (PACKAGE_PREFIX);
}
/**
* Returns the application defined property of the receiver
* with the specified name, or null if it has not been set.
* <p>
* Applications may have associated arbitrary objects with the
* receiver in this fashion. If the objects stored in the
* properties need to be notified when the display is disposed
* of, it is the application's responsibility to provide a
* <code>disposeExec()</code> handler which does so.
* </p>
*
* @param key the name of the property
* @return the value of the property or null if it has not been set
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the key is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #setData(String, Object)
* @see #disposeExec(Runnable)
*/
public Object getData (String key) {
checkDevice ();
if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) {
return new Boolean (runMessagesInIdle);
}
if (key.equals (RUN_MESSAGES_IN_MESSAGE_PROC_KEY)) {
return new Boolean (runMessagesInMessageProc);
}
if (keys == null) return null;
for (int i=0; i<keys.length; i++) {
if (keys [i].equals (key)) return values [i];
}
return null;
}
/**
* Returns the application defined, display specific data
* associated with the receiver, or null if it has not been
* set. The <em>display specific data</em> is a single,
* unnamed field that is stored with every display.
* <p>
* Applications may put arbitrary objects in this field. If
* the object stored in the display specific data needs to
* be notified when the display is disposed of, it is the
* application's responsibility to provide a
* <code>disposeExec()</code> handler which does so.
* </p>
*
* @return the display specific data
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #setData(Object)
* @see #disposeExec(Runnable)
*/
public Object getData () {
checkDevice ();
return data;
}
/**
* Returns the button dismissal alignment, one of <code>LEFT</code> or <code>RIGHT</code>.
* The button dismissal alignment is the ordering that should be used when positioning the
* default dismissal button for a dialog. For example, in a dialog that contains an OK and
* CANCEL button, on platforms where the button dismissal alignment is <code>LEFT</code>, the
* button ordering should be OK/CANCEL. When button dismissal alignment is <code>RIGHT</code>,
* the button ordering should be CANCEL/OK.
*
* @return the button dismissal order
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1
*/
public int getDismissalAlignment () {
checkDevice ();
return SWT.LEFT;
}
/**
* Returns the longest duration, in milliseconds, between
* two mouse button clicks that will be considered a
* <em>double click</em> by the underlying operating system.
*
* @return the double click time
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public int getDoubleClickTime () {
checkDevice ();
return OS.GetDoubleClickTime ();
}
/**
* Returns the control which currently has keyboard focus,
* or null if keyboard events are not currently going to
* any of the controls built by the currently running
* application.
*
* @return the control under the cursor
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Control getFocusControl () {
checkDevice ();
if (focusControl != null && !focusControl.isDisposed ()) {
return focusControl;
}
return _getFocusControl ();
}
String getFontName (LOGFONT logFont) {
char[] chars;
if (OS.IsUnicode) {
chars = ((LOGFONTW)logFont).lfFaceName;
} else {
chars = new char[OS.LF_FACESIZE];
byte[] bytes = ((LOGFONTA)logFont).lfFaceName;
OS.MultiByteToWideChar (OS.CP_ACP, OS.MB_PRECOMPOSED, bytes, bytes.length, chars, chars.length);
}
int index = 0;
while (index < chars.length) {
if (chars [index] == 0) break;
index++;
}
return new String (chars, 0, index);
}
/**
* Returns true when the high contrast mode is enabled.
* Otherwise, false is returned.
* <p>
* Note: This operation is a hint and is not supported on
* platforms that do not have this concept.
* </p>
*
* @return the high contrast mode
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*/
public boolean getHighContrast () {
checkDevice ();
if (OS.IsWinCE) return false;
HIGHCONTRAST pvParam = new HIGHCONTRAST ();
pvParam.cbSize = HIGHCONTRAST.sizeof;
OS.SystemParametersInfo (OS.SPI_GETHIGHCONTRAST, 0, pvParam, 0);
return (pvParam.dwFlags & OS.HCF_HIGHCONTRASTON) != 0;
}
/**
* Returns the maximum allowed depth of icons on this display, in bits per pixel.
* On some platforms, this may be different than the actual depth of the display.
*
* @return the maximum icon depth
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Device#getDepth
*/
public int getIconDepth () {
checkDevice ();
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) {
if (getDepth () >= 24) return 32;
}
/* Use the character encoding for the default locale */
TCHAR buffer1 = new TCHAR (0, "Control Panel\\Desktop\\WindowMetrics", true); //$NON-NLS-1$
int /*long*/ [] phkResult = new int /*long*/ [1];
int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, buffer1, 0, OS.KEY_READ, phkResult);
if (result != 0) return 4;
int depth = 4;
int [] lpcbData = new int [1];
/* Use the character encoding for the default locale */
TCHAR buffer2 = new TCHAR (0, "Shell Icon BPP", true); //$NON-NLS-1$
result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, (TCHAR) null, lpcbData);
if (result == 0) {
TCHAR lpData = new TCHAR (0, lpcbData [0] / TCHAR.sizeof);
result = OS.RegQueryValueEx (phkResult [0], buffer2, 0, null, lpData, lpcbData);
if (result == 0) {
try {
depth = Integer.parseInt (lpData.toString (0, lpData.strlen ()));
} catch (NumberFormatException e) {}
}
}
OS.RegCloseKey (phkResult [0]);
return depth;
}
/**
* Returns an array containing the recommended icon sizes.
*
* @return the array of icon sizes
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Decorations#setImages(Image[])
*
* @since 3.0
*/
public Point [] getIconSizes () {
checkDevice ();
return new Point [] {
new Point (OS.GetSystemMetrics (OS.SM_CXSMICON), OS.GetSystemMetrics (OS.SM_CYSMICON)),
new Point (OS.GetSystemMetrics (OS.SM_CXICON), OS.GetSystemMetrics (OS.SM_CYICON)),
};
}
ImageList getImageList (int style, int width, int height) {
if (imageList == null) imageList = new ImageList [4];
int i = 0;
int length = imageList.length;
while (i < length) {
ImageList list = imageList [i];
if (list == null) break;
Point size = list.getImageSize();
if (size.x == width && size.y == height) {
if (list.getStyle () == style) {
list.addRef();
return list;
}
}
i++;
}
if (i == length) {
ImageList [] newList = new ImageList [length + 4];
System.arraycopy (imageList, 0, newList, 0, length);
imageList = newList;
}
ImageList list = new ImageList (style);
imageList [i] = list;
list.addRef();
return list;
}
ImageList getImageListToolBar (int style, int width, int height) {
if (toolImageList == null) toolImageList = new ImageList [4];
int i = 0;
int length = toolImageList.length;
while (i < length) {
ImageList list = toolImageList [i];
if (list == null) break;
Point size = list.getImageSize();
if (size.x == width && size.y == height) {
if (list.getStyle () == style) {
list.addRef();
return list;
}
}
i++;
}
if (i == length) {
ImageList [] newList = new ImageList [length + 4];
System.arraycopy (toolImageList, 0, newList, 0, length);
toolImageList = newList;
}
ImageList list = new ImageList (style);
toolImageList [i] = list;
list.addRef();
return list;
}
ImageList getImageListToolBarDisabled (int style, int width, int height) {
if (toolDisabledImageList == null) toolDisabledImageList = new ImageList [4];
int i = 0;
int length = toolDisabledImageList.length;
while (i < length) {
ImageList list = toolDisabledImageList [i];
if (list == null) break;
Point size = list.getImageSize();
if (size.x == width && size.y == height) {
if (list.getStyle () == style) {
list.addRef();
return list;
}
}
i++;
}
if (i == length) {
ImageList [] newList = new ImageList [length + 4];
System.arraycopy (toolDisabledImageList, 0, newList, 0, length);
toolDisabledImageList = newList;
}
ImageList list = new ImageList (style);
toolDisabledImageList [i] = list;
list.addRef();
return list;
}
ImageList getImageListToolBarHot (int style, int width, int height) {
if (toolHotImageList == null) toolHotImageList = new ImageList [4];
int i = 0;
int length = toolHotImageList.length;
while (i < length) {
ImageList list = toolHotImageList [i];
if (list == null) break;
Point size = list.getImageSize();
if (size.x == width && size.y == height) {
if (list.getStyle () == style) {
list.addRef();
return list;
}
}
i++;
}
if (i == length) {
ImageList [] newList = new ImageList [length + 4];
System.arraycopy (toolHotImageList, 0, newList, 0, length);
toolHotImageList = newList;
}
ImageList list = new ImageList (style);
toolHotImageList [i] = list;
list.addRef();
return list;
}
int getLastEventTime () {
return OS.IsWinCE ? OS.GetTickCount () : OS.GetMessageTime ();
}
MenuItem getMenuItem (int id) {
if (items == null) return null;
id = id - ID_START;
if (0 <= id && id < items.length) return items [id];
return null;
}
int getMessageCount () {
return synchronizer.getMessageCount ();
}
Shell getModalShell () {
if (modalShells == null) return null;
int index = modalShells.length;
while (--index >= 0) {
Shell shell = modalShells [index];
if (shell != null) return shell;
}
return null;
}
Dialog getModalDialog () {
return modalDialog;
}
/**
* Returns an array of monitors attached to the device.
*
* @return the array of monitors
*
* @since 3.0
*/
public Monitor [] getMonitors () {
checkDevice ();
if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) {
return new Monitor [] {getPrimaryMonitor ()};
}
monitors = new Monitor [4];
Callback callback = new Callback (this, "monitorEnumProc", 4); //$NON-NLS-1$
int /*long*/ lpfnEnum = callback.getAddress ();
if (lpfnEnum == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.EnumDisplayMonitors (0, null, lpfnEnum, 0);
callback.dispose ();
Monitor [] result = new Monitor [monitorCount];
System.arraycopy (monitors, 0, result, 0, monitorCount);
monitors = null;
monitorCount = 0;
return result;
}
int /*long*/ getMsgProc (int /*long*/ code, int /*long*/ wParam, int /*long*/ lParam) {
if (embeddedHwnd == 0) {
int /*long*/ hInstance = OS.GetModuleHandle (null);
embeddedHwnd = OS.CreateWindowEx (0,
windowClass,
null,
OS.WS_OVERLAPPED,
0, 0, 0, 0,
0,
0,
hInstance,
null);
embeddedCallback = new Callback (this, "embeddedProc", 4); //$NON-NLS-1$
embeddedProc = embeddedCallback.getAddress ();
if (embeddedProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.SetWindowLongPtr (embeddedHwnd, OS.GWLP_WNDPROC, embeddedProc);
}
if (code >= 0 && (wParam & OS.PM_REMOVE) != 0) {
MSG msg = new MSG ();
OS.MoveMemory (msg, lParam, MSG.sizeof);
switch (msg.message) {
case OS.WM_KEYDOWN:
case OS.WM_KEYUP:
case OS.WM_SYSKEYDOWN:
case OS.WM_SYSKEYUP: {
Control control = findControl (msg.hwnd);
if (control != null) {
int /*long*/ hHeap = OS.GetProcessHeap ();
int /*long*/ keyMsg = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, MSG.sizeof);
OS.MoveMemory (keyMsg, msg, MSG.sizeof);
OS.PostMessage (hwndMessage, SWT_KEYMSG, wParam, keyMsg);
switch ((int)/*64*/msg.wParam) {
case OS.VK_SHIFT:
case OS.VK_MENU:
case OS.VK_CONTROL:
case OS.VK_CAPITAL:
case OS.VK_NUMLOCK:
case OS.VK_SCROLL:
break;
default:
msg.message = OS.WM_NULL;
OS.MoveMemory (lParam, msg, MSG.sizeof);
}
}
}
}
}
return OS.CallNextHookEx (msgHook, (int)/*64*/code, wParam, lParam);
}
/**
* Returns the primary monitor for that device.
*
* @return the primary monitor
*
* @since 3.0
*/
public Monitor getPrimaryMonitor () {
checkDevice ();
if (OS.IsWinCE || OS.WIN32_VERSION < OS.VERSION (4, 10)) {
Monitor monitor = new Monitor();
int width = OS.GetSystemMetrics (OS.SM_CXSCREEN);
int height = OS.GetSystemMetrics (OS.SM_CYSCREEN);
monitor.width = width;
monitor.height = height;
RECT rect = new RECT ();
OS.SystemParametersInfo (OS.SPI_GETWORKAREA, 0, rect, 0);
monitor.clientX = rect.left;
monitor.clientY = rect.top;
monitor.clientWidth = rect.right - rect.left;
monitor.clientHeight = rect.bottom - rect.top;
return monitor;
}
monitors = new Monitor [4];
Callback callback = new Callback (this, "monitorEnumProc", 4); //$NON-NLS-1$
int /*long*/ lpfnEnum = callback.getAddress ();
if (lpfnEnum == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.EnumDisplayMonitors (0, null, lpfnEnum, 0);
callback.dispose ();
Monitor result = null;
MONITORINFO lpmi = new MONITORINFO ();
lpmi.cbSize = MONITORINFO.sizeof;
for (int i = 0; i < monitorCount; i++) {
Monitor monitor = monitors [i];
OS.GetMonitorInfo (monitors [i].handle, lpmi);
if ((lpmi.dwFlags & OS.MONITORINFOF_PRIMARY) != 0) {
result = monitor;
break;
}
}
monitors = null;
monitorCount = 0;
return result;
}
/**
* Returns a (possibly empty) array containing all shells which have
* not been disposed and have the receiver as their display.
*
* @return the receiver's shells
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Shell [] getShells () {
checkDevice ();
int index = 0;
Shell [] result = new Shell [16];
for (int i = 0; i < controlTable.length; i++) {
Control control = controlTable [i];
if (control != null && control instanceof Shell) {
int j = 0;
while (j < index) {
if (result [j] == control) break;
j++;
}
if (j == index) {
if (index == result.length) {
Shell [] newResult = new Shell [index + 16];
System.arraycopy (result, 0, newResult, 0, index);
result = newResult;
}
result [index++] = (Shell) control;
}
}
}
if (index == result.length) return result;
Shell [] newResult = new Shell [index];
System.arraycopy (result, 0, newResult, 0, index);
return newResult;
}
Image getSortImage (int direction) {
switch (direction) {
case SWT.UP: {
if (upArrow != null) return upArrow;
Color c1 = getSystemColor (SWT.COLOR_WIDGET_NORMAL_SHADOW);
Color c2 = getSystemColor (SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW);
Color c3 = getSystemColor (SWT.COLOR_WIDGET_BACKGROUND);
PaletteData palette = new PaletteData(new RGB [] {c1.getRGB (), c2.getRGB (), c3.getRGB ()});
ImageData imageData = new ImageData (8, 8, 4, palette);
imageData.transparentPixel = 2;
upArrow = new Image (this, imageData);
GC gc = new GC (upArrow);
gc.setBackground (c3);
gc.fillRectangle (0, 0, 8, 8);
gc.setForeground (c1);
int [] line1 = new int [] {0,6, 1,6, 1,4, 2,4, 2,2, 3,2, 3,1};
gc.drawPolyline (line1);
gc.setForeground (c2);
int [] line2 = new int [] {0,7, 7,7, 7,6, 6,6, 6,4, 5,4, 5,2, 4,2, 4,1};
gc.drawPolyline (line2);
gc.dispose ();
return upArrow;
}
case SWT.DOWN: {
if (downArrow != null) return downArrow;
Color c1 = getSystemColor (SWT.COLOR_WIDGET_NORMAL_SHADOW);
Color c2 = getSystemColor (SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW);
Color c3 = getSystemColor (SWT.COLOR_WIDGET_BACKGROUND);
PaletteData palette = new PaletteData (new RGB [] {c1.getRGB (), c2.getRGB (), c3.getRGB ()});
ImageData imageData = new ImageData (8, 8, 4, palette);
imageData.transparentPixel = 2;
downArrow = new Image (this, imageData);
GC gc = new GC (downArrow);
gc.setBackground (c3);
gc.fillRectangle (0, 0, 8, 8);
gc.setForeground (c1);
int [] line1 = new int [] {7,0, 0,0, 0,1, 1,1, 1,3, 2,3, 2,5, 3,5, 3,6};
gc.drawPolyline (line1);
gc.setForeground (c2);
int [] line2 = new int [] {4,6, 4,5, 5,5, 5,3, 6,3, 6,1, 7,1};
gc.drawPolyline (line2);
gc.dispose ();
return downArrow;
}
}
return null;
}
/**
* Gets the synchronizer used by the display.
*
* @return the receiver's synchronizer
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.4
*/
public Synchronizer getSynchronizer () {
checkDevice ();
return synchronizer;
}
/**
* Returns the thread that has invoked <code>syncExec</code>
* or null if no such runnable is currently being invoked by
* the user-interface thread.
* <p>
* Note: If a runnable invoked by asyncExec is currently
* running, this method will return null.
* </p>
*
* @return the receiver's sync-interface thread
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Thread getSyncThread () {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
return synchronizer.syncThread;
}
}
/**
* Returns the matching standard color for the given
* constant, which should be one of the color constants
* specified in class <code>SWT</code>. Any value other
* than one of the SWT color constants which is passed
* in will result in the color black. This color should
* not be free'd because it was allocated by the system,
* not the application.
*
* @param id the color constant
* @return the matching color
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see SWT
*/
public Color getSystemColor (int id) {
checkDevice ();
int pixel = 0x00000000;
switch (id) {
case SWT.COLOR_WIDGET_DARK_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DDKSHADOW); break;
case SWT.COLOR_WIDGET_NORMAL_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DSHADOW); break;
case SWT.COLOR_WIDGET_LIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DLIGHT); break;
case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: pixel = OS.GetSysColor (OS.COLOR_3DHIGHLIGHT); break;
case SWT.COLOR_WIDGET_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_3DFACE); break;
case SWT.COLOR_WIDGET_BORDER: pixel = OS.GetSysColor (OS.COLOR_WINDOWFRAME); break;
case SWT.COLOR_WIDGET_FOREGROUND:
case SWT.COLOR_LIST_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOWTEXT); break;
case SWT.COLOR_LIST_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_WINDOW); break;
case SWT.COLOR_LIST_SELECTION: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHT); break;
case SWT.COLOR_LIST_SELECTION_TEXT: pixel = OS.GetSysColor (OS.COLOR_HIGHLIGHTTEXT);break;
case SWT.COLOR_INFO_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOTEXT); break;
case SWT.COLOR_INFO_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INFOBK); break;
case SWT.COLOR_TITLE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_CAPTIONTEXT); break;
case SWT.COLOR_TITLE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION); break;
case SWT.COLOR_TITLE_BACKGROUND_GRADIENT:
pixel = OS.GetSysColor (OS.COLOR_GRADIENTACTIVECAPTION);
if (pixel == 0) pixel = OS.GetSysColor (OS.COLOR_ACTIVECAPTION);
break;
case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTIONTEXT); break;
case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION); break;
case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT:
pixel = OS.GetSysColor (OS.COLOR_GRADIENTINACTIVECAPTION);
if (pixel == 0) pixel = OS.GetSysColor (OS.COLOR_INACTIVECAPTION);
break;
default:
return super.getSystemColor (id);
}
return Color.win32_new (this, pixel);
}
/**
* Returns the matching standard platform cursor for the given
* constant, which should be one of the cursor constants
* specified in class <code>SWT</code>. This cursor should
* not be free'd because it was allocated by the system,
* not the application. A value of <code>null</code> will
* be returned if the supplied constant is not an SWT cursor
* constant.
*
* @param id the SWT cursor constant
* @return the corresponding cursor or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see SWT#CURSOR_ARROW
* @see SWT#CURSOR_WAIT
* @see SWT#CURSOR_CROSS
* @see SWT#CURSOR_APPSTARTING
* @see SWT#CURSOR_HELP
* @see SWT#CURSOR_SIZEALL
* @see SWT#CURSOR_SIZENESW
* @see SWT#CURSOR_SIZENS
* @see SWT#CURSOR_SIZENWSE
* @see SWT#CURSOR_SIZEWE
* @see SWT#CURSOR_SIZEN
* @see SWT#CURSOR_SIZES
* @see SWT#CURSOR_SIZEE
* @see SWT#CURSOR_SIZEW
* @see SWT#CURSOR_SIZENE
* @see SWT#CURSOR_SIZESE
* @see SWT#CURSOR_SIZESW
* @see SWT#CURSOR_SIZENW
* @see SWT#CURSOR_UPARROW
* @see SWT#CURSOR_IBEAM
* @see SWT#CURSOR_NO
* @see SWT#CURSOR_HAND
*
* @since 3.0
*/
public Cursor getSystemCursor (int id) {
checkDevice ();
if (!(0 <= id && id < cursors.length)) return null;
if (cursors [id] == null) {
cursors [id] = new Cursor (this, id);
}
return cursors [id];
}
/**
* Returns a reasonable font for applications to use.
* On some platforms, this will match the "default font"
* or "system font" if such can be found. This font
* should not be free'd because it was allocated by the
* system, not the application.
* <p>
* Typically, applications which want the default look
* should simply not set the font on the widgets they
* create. Widgets are always created with the correct
* default font for the class of user-interface component
* they represent.
* </p>
*
* @return a font
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Font getSystemFont () {
checkDevice ();
if (systemFont != null) return systemFont;
int /*long*/ hFont = 0;
if (!OS.IsWinCE) {
NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA ();
info.cbSize = NONCLIENTMETRICS.sizeof;
if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) {
LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfMessageFont : ((NONCLIENTMETRICSA)info).lfMessageFont;
hFont = OS.CreateFontIndirect (logFont);
lfSystemFont = hFont != 0 ? logFont : null;
}
}
if (hFont == 0) hFont = OS.GetStockObject (OS.DEFAULT_GUI_FONT);
if (hFont == 0) hFont = OS.GetStockObject (OS.SYSTEM_FONT);
return systemFont = Font.win32_new (this, hFont);
}
/**
* Returns the matching standard platform image for the given
* constant, which should be one of the icon constants
* specified in class <code>SWT</code>. This image should
* not be free'd because it was allocated by the system,
* not the application. A value of <code>null</code> will
* be returned either if the supplied constant is not an
* SWT icon constant or if the platform does not define an
* image that corresponds to the constant.
*
* @param id the SWT icon constant
* @return the corresponding image or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see SWT#ICON_ERROR
* @see SWT#ICON_INFORMATION
* @see SWT#ICON_QUESTION
* @see SWT#ICON_WARNING
* @see SWT#ICON_WORKING
*
* @since 3.0
*/
public Image getSystemImage (int id) {
checkDevice ();
switch (id) {
case SWT.ICON_ERROR: {
if (errorImage != null) return errorImage;
int /*long*/ hIcon = OS.LoadImage (0, OS.OIC_HAND, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED);
return errorImage = Image.win32_new (this, SWT.ICON, hIcon);
}
case SWT.ICON_WORKING:
case SWT.ICON_INFORMATION: {
if (infoImage != null) return infoImage;
int /*long*/ hIcon = OS.LoadImage (0, OS.OIC_INFORMATION, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED);
return infoImage = Image.win32_new (this, SWT.ICON, hIcon);
}
case SWT.ICON_QUESTION: {
if (questionImage != null) return questionImage;
int /*long*/ hIcon = OS.LoadImage (0, OS.OIC_QUES, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED);
return questionImage = Image.win32_new (this, SWT.ICON, hIcon);
}
case SWT.ICON_WARNING: {
if (warningIcon != null) return warningIcon;
int /*long*/ hIcon = OS.LoadImage (0, OS.OIC_BANG, OS.IMAGE_ICON, 0, 0, OS.LR_SHARED);
return warningIcon = Image.win32_new (this, SWT.ICON, hIcon);
}
}
return null;
}
/**
* Returns the single instance of the system tray or null
* when there is no system tray available for the platform.
*
* @return the system tray or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*/
public Tray getSystemTray () {
checkDevice ();
if (tray != null) return tray;
if (!OS.IsWinCE) tray = new Tray (this, SWT.NONE);
return tray;
}
/**
* Returns the user-interface thread for the receiver.
*
* @return the receiver's user-interface thread
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public Thread getThread () {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
return thread;
}
}
int /*long*/ hButtonTheme () {
if (hButtonTheme != 0) return hButtonTheme;
return hButtonTheme = OS.OpenThemeData (hwndMessage, BUTTON);
}
int /*long*/ hEditTheme () {
if (hEditTheme != 0) return hEditTheme;
return hEditTheme = OS.OpenThemeData (hwndMessage, EDIT);
}
int /*long*/ hExplorerBarTheme () {
if (hExplorerBarTheme != 0) return hExplorerBarTheme;
return hExplorerBarTheme = OS.OpenThemeData (hwndMessage, EXPLORERBAR);
}
int /*long*/ hScrollBarTheme () {
if (hScrollBarTheme != 0) return hScrollBarTheme;
return hScrollBarTheme = OS.OpenThemeData (hwndMessage, SCROLLBAR);
}
int /*long*/ hTabTheme () {
if (hTabTheme != 0) return hTabTheme;
return hTabTheme = OS.OpenThemeData (hwndMessage, TAB);
}
/**
* Invokes platform specific functionality to allocate a new GC handle.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the public
* API for <code>Display</code>. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
* </p>
*
* @param data the platform specific GC data
* @return the platform specific GC handle
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
* @exception SWTError <ul>
* <li>ERROR_NO_HANDLES if a handle could not be obtained for gc creation</li>
* </ul>
*/
public int /*long*/ internal_new_GC (GCData data) {
if (isDisposed()) SWT.error(SWT.ERROR_DEVICE_DISPOSED);
int /*long*/ hDC = OS.GetDC (0);
if (hDC == 0) SWT.error (SWT.ERROR_NO_HANDLES);
if (data != null) {
int mask = SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
if ((data.style & mask) != 0) {
data.layout = (data.style & SWT.RIGHT_TO_LEFT) != 0 ? OS.LAYOUT_RTL : 0;
} else {
data.style |= SWT.LEFT_TO_RIGHT;
}
data.device = this;
data.font = getSystemFont ();
}
return hDC;
}
/**
* Initializes any internal resources needed by the
* device.
* <p>
* This method is called after <code>create</code>.
* </p>
*
* @see #create
*/
protected void init () {
super.init ();
/* Create the callbacks */
windowCallback = new Callback (this, "windowProc", 4); //$NON-NLS-1$
windowProc = windowCallback.getAddress ();
if (windowProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
/* Remember the current thread id */
threadId = OS.GetCurrentThreadId ();
/* Use the character encoding for the default locale */
windowClass = new TCHAR (0, WindowName + WindowClassCount, true);
windowShadowClass = new TCHAR (0, WindowShadowName + WindowClassCount, true);
WindowClassCount++;
/* Register the SWT window class */
int /*long*/ hHeap = OS.GetProcessHeap ();
int /*long*/ hInstance = OS.GetModuleHandle (null);
WNDCLASS lpWndClass = new WNDCLASS ();
lpWndClass.hInstance = hInstance;
lpWndClass.lpfnWndProc = windowProc;
lpWndClass.style = OS.CS_BYTEALIGNWINDOW | OS.CS_DBLCLKS;
lpWndClass.hCursor = OS.LoadCursor (0, OS.IDC_ARROW);
/*
* Set the default icon for the window class to IDI_APPLICATION.
* This is not necessary for native Windows applications but
* versions of Java starting at JDK 1.6 set the icon in the
* executable instead of leaving the default.
*/
if (!OS.IsWinCE && Library.JAVA_VERSION >= Library.JAVA_VERSION (1, 6, 0)) {
TCHAR lpszFile = new TCHAR (0, OS.MAX_PATH);
while (OS.GetModuleFileName (0, lpszFile, lpszFile.length ()) == lpszFile.length ()) {
lpszFile = new TCHAR (0, lpszFile.length () + OS.MAX_PATH);
}
if (OS.ExtractIconEx (lpszFile, -1, null, null, 1) != 0) {
String fileName = lpszFile.toString (0, lpszFile.strlen ());
if (fileName.endsWith ("java.exe") || fileName.endsWith ("javaw.exe")) { //$NON-NLS-1$ //$NON-NLS-2$
lpWndClass.hIcon = OS.LoadIcon (0, OS.IDI_APPLICATION);
}
}
}
int byteCount = windowClass.length () * TCHAR.sizeof;
lpWndClass.lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory (lpWndClass.lpszClassName, windowClass, byteCount);
OS.RegisterClass (lpWndClass);
OS.HeapFree (hHeap, 0, lpWndClass.lpszClassName);
/* Register the SWT drop shadow window class */
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (5, 1)) {
lpWndClass.style |= OS.CS_DROPSHADOW;
}
byteCount = windowShadowClass.length () * TCHAR.sizeof;
lpWndClass.lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory (lpWndClass.lpszClassName, windowShadowClass, byteCount);
OS.RegisterClass (lpWndClass);
OS.HeapFree (hHeap, 0, lpWndClass.lpszClassName);
/* Create the message only HWND */
hwndMessage = OS.CreateWindowEx (0,
windowClass,
null,
OS.WS_OVERLAPPED,
0, 0, 0, 0,
0,
0,
hInstance,
null);
messageCallback = new Callback (this, "messageProc", 4); //$NON-NLS-1$
messageProc = messageCallback.getAddress ();
if (messageProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
OS.SetWindowLongPtr (hwndMessage, OS.GWLP_WNDPROC, messageProc);
/* Create the filter hook */
if (!OS.IsWinCE) {
msgFilterCallback = new Callback (this, "msgFilterProc", 3); //$NON-NLS-1$
msgFilterProc = msgFilterCallback.getAddress ();
if (msgFilterProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
filterHook = OS.SetWindowsHookEx (OS.WH_MSGFILTER, msgFilterProc, 0, threadId);
}
/* Create the idle hook */
if (!OS.IsWinCE) {
foregroundIdleCallback = new Callback (this, "foregroundIdleProc", 3); //$NON-NLS-1$
foregroundIdleProc = foregroundIdleCallback.getAddress ();
if (foregroundIdleProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
idleHook = OS.SetWindowsHookEx (OS.WH_FOREGROUNDIDLE, foregroundIdleProc, 0, threadId);
}
/* Register custom messages message */
SWT_TASKBARCREATED = OS.RegisterWindowMessage (new TCHAR (0, "TaskbarCreated", true)); //$NON-NLS-1$
SWT_RESTORECARET = OS.RegisterWindowMessage (new TCHAR (0, "SWT_RESTORECARET", true)); //$NON-NLS-1$
DI_GETDRAGIMAGE = OS.RegisterWindowMessage (new TCHAR (0, "ShellGetDragImage", true)); //$NON-NLS-1$
/* Initialize OLE */
if (!OS.IsWinCE) OS.OleInitialize (0);
/* Initialize buffered painting */
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)){
OS.BufferedPaintInit ();
}
/* Initialize the Widget Table */
indexTable = new int [GROW_SIZE];
controlTable = new Control [GROW_SIZE];
for (int i=0; i<GROW_SIZE-1; i++) indexTable [i] = i + 1;
indexTable [GROW_SIZE - 1] = -1;
}
/**
* Invokes platform specific functionality to dispose a GC handle.
* <p>
* <b>IMPORTANT:</b> This method is <em>not</em> part of the public
* API for <code>Display</code>. It is marked public only so that it
* can be shared within the packages provided by SWT. It is not
* available on all platforms, and should never be called from
* application code.
* </p>
*
* @param hDC the platform specific GC handle
* @param data the platform specific GC data
*/
public void internal_dispose_GC (int /*long*/ hDC, GCData data) {
OS.ReleaseDC (0, hDC);
}
boolean isXMouseActive () {
/*
* NOTE: X-Mouse is active when bit 1 of the UserPreferencesMask is set.
*/
boolean xMouseActive = false;
TCHAR key = new TCHAR (0, "Control Panel\\Desktop", true); //$NON-NLS-1$
int /*long*/ [] phKey = new int /*long*/ [1];
int result = OS.RegOpenKeyEx (OS.HKEY_CURRENT_USER, key, 0, OS.KEY_READ, phKey);
if (result == 0) {
TCHAR lpValueName = new TCHAR (0, "UserPreferencesMask", true); //$NON-NLS-1$
int [] lpcbData = new int [] {4}, lpData = new int [1];
result = OS.RegQueryValueEx (phKey [0], lpValueName, 0, null, lpData, lpcbData);
if (result == 0) xMouseActive = (lpData [0] & 0x01) != 0;
OS.RegCloseKey (phKey [0]);
}
return xMouseActive;
}
boolean isValidThread () {
return thread == Thread.currentThread ();
}
/**
* Maps a point from one coordinate system to another.
* When the control is null, coordinates are mapped to
* the display.
* <p>
* NOTE: On right-to-left platforms where the coordinate
* systems are mirrored, special care needs to be taken
* when mapping coordinates from one control to another
* to ensure the result is correctly mirrored.
*
* Mapping a point that is the origin of a rectangle and
* then adding the width and height is not equivalent to
* mapping the rectangle. When one control is mirrored
* and the other is not, adding the width and height to a
* point that was mapped causes the rectangle to extend
* in the wrong direction. Mapping the entire rectangle
* instead of just one point causes both the origin and
* the corner of the rectangle to be mapped.
* </p>
*
* @param from the source <code>Control</code> or <code>null</code>
* @param to the destination <code>Control</code> or <code>null</code>
* @param point to be mapped
* @return point with mapped coordinates
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the point is null</li>
* <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1.2
*/
public Point map (Control from, Control to, Point point) {
checkDevice ();
if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
return map (from, to, point.x, point.y);
}
/**
* Maps a point from one coordinate system to another.
* When the control is null, coordinates are mapped to
* the display.
* <p>
* NOTE: On right-to-left platforms where the coordinate
* systems are mirrored, special care needs to be taken
* when mapping coordinates from one control to another
* to ensure the result is correctly mirrored.
*
* Mapping a point that is the origin of a rectangle and
* then adding the width and height is not equivalent to
* mapping the rectangle. When one control is mirrored
* and the other is not, adding the width and height to a
* point that was mapped causes the rectangle to extend
* in the wrong direction. Mapping the entire rectangle
* instead of just one point causes both the origin and
* the corner of the rectangle to be mapped.
* </p>
*
* @param from the source <code>Control</code> or <code>null</code>
* @param to the destination <code>Control</code> or <code>null</code>
* @param x coordinates to be mapped
* @param y coordinates to be mapped
* @return point with mapped coordinates
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1.2
*/
public Point map (Control from, Control to, int x, int y) {
checkDevice ();
if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (from == to) return new Point (x, y);
int /*long*/ hwndFrom = from != null ? from.handle : 0;
int /*long*/ hwndTo = to != null ? to.handle : 0;
POINT point = new POINT ();
point.x = x;
point.y = y;
OS.MapWindowPoints (hwndFrom, hwndTo, point, 1);
return new Point (point.x, point.y);
}
/**
* Maps a point from one coordinate system to another.
* When the control is null, coordinates are mapped to
* the display.
* <p>
* NOTE: On right-to-left platforms where the coordinate
* systems are mirrored, special care needs to be taken
* when mapping coordinates from one control to another
* to ensure the result is correctly mirrored.
*
* Mapping a point that is the origin of a rectangle and
* then adding the width and height is not equivalent to
* mapping the rectangle. When one control is mirrored
* and the other is not, adding the width and height to a
* point that was mapped causes the rectangle to extend
* in the wrong direction. Mapping the entire rectangle
* instead of just one point causes both the origin and
* the corner of the rectangle to be mapped.
* </p>
*
* @param from the source <code>Control</code> or <code>null</code>
* @param to the destination <code>Control</code> or <code>null</code>
* @param rectangle to be mapped
* @return rectangle with mapped coordinates
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li>
* <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1.2
*/
public Rectangle map (Control from, Control to, Rectangle rectangle) {
checkDevice ();
if (rectangle == null) error (SWT.ERROR_NULL_ARGUMENT);
return map (from, to, rectangle.x, rectangle.y, rectangle.width, rectangle.height);
}
/**
* Maps a point from one coordinate system to another.
* When the control is null, coordinates are mapped to
* the display.
* <p>
* NOTE: On right-to-left platforms where the coordinate
* systems are mirrored, special care needs to be taken
* when mapping coordinates from one control to another
* to ensure the result is correctly mirrored.
*
* Mapping a point that is the origin of a rectangle and
* then adding the width and height is not equivalent to
* mapping the rectangle. When one control is mirrored
* and the other is not, adding the width and height to a
* point that was mapped causes the rectangle to extend
* in the wrong direction. Mapping the entire rectangle
* instead of just one point causes both the origin and
* the corner of the rectangle to be mapped.
* </p>
*
* @param from the source <code>Control</code> or <code>null</code>
* @param to the destination <code>Control</code> or <code>null</code>
* @param x coordinates to be mapped
* @param y coordinates to be mapped
* @param width coordinates to be mapped
* @param height coordinates to be mapped
* @return rectangle with mapped coordinates
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the Control from or the Control to have been disposed</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1.2
*/
public Rectangle map (Control from, Control to, int x, int y, int width, int height) {
checkDevice ();
if (from != null && from.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (to != null && to.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT);
if (from == to) return new Rectangle (x, y, width, height);
int /*long*/ hwndFrom = from != null ? from.handle : 0;
int /*long*/ hwndTo = to != null ? to.handle : 0;
RECT rect = new RECT ();
rect.left = x;
rect.top = y;
rect.right = x + width;
rect.bottom = y + height;
OS.MapWindowPoints (hwndFrom, hwndTo, rect, 2);
return new Rectangle (rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
}
/*
* Returns a single character, converted from the default
* multi-byte character set (MBCS) used by the operating
* system widgets to a wide character set (WCS) used by Java.
*
* @param ch the MBCS character
* @return the WCS character
*/
static char mbcsToWcs (int ch) {
return mbcsToWcs (ch, 0);
}
/*
* Returns a single character, converted from the specified
* multi-byte character set (MBCS) used by the operating
* system widgets to a wide character set (WCS) used by Java.
*
* @param ch the MBCS character
* @param codePage the code page used to convert the character
* @return the WCS character
*/
static char mbcsToWcs (int ch, int codePage) {
if (OS.IsUnicode) return (char) ch;
int key = ch & 0xFFFF;
if (key <= 0x7F) return (char) ch;
byte [] buffer;
if (key <= 0xFF) {
buffer = new byte [1];
buffer [0] = (byte) key;
} else {
buffer = new byte [2];
buffer [0] = (byte) ((key >> 8) & 0xFF);
buffer [1] = (byte) (key & 0xFF);
}
char [] unicode = new char [1];
int cp = codePage != 0 ? codePage : OS.CP_ACP;
int count = OS.MultiByteToWideChar (cp, OS.MB_PRECOMPOSED, buffer, buffer.length, unicode, 1);
if (count == 0) return 0;
return unicode [0];
}
int /*long*/ messageProc (int /*long*/ hwnd, int /*long*/ msg, int /*long*/ wParam, int /*long*/ lParam) {
switch ((int)/*64*/msg) {
case SWT_RUNASYNC: {
if (runMessagesInIdle) runAsyncMessages (false);
break;
}
case SWT_KEYMSG: {
boolean consumed = false;
MSG keyMsg = new MSG ();
OS.MoveMemory (keyMsg, lParam, MSG.sizeof);
Control control = findControl (keyMsg.hwnd);
if (control != null) {
/*
* Feature in Windows. When the user types an accent key such
* as ^ in order to get an accented character on a German keyboard,
* calling TranslateMessage(), ToUnicode() or ToAscii() consumes
* the key. This means that a subsequent call to TranslateMessage()
* will see a regular key rather than the accented key. The fix
* is to use MapVirtualKey() and VkKeyScan () to detect an accent
* and avoid calls to TranslateMessage().
*/
boolean accentKey = false;
switch (keyMsg.message) {
case OS.WM_KEYDOWN:
case OS.WM_SYSKEYDOWN: {
if (!OS.IsWinCE) {
switch ((int)/*64*/keyMsg.wParam) {
case OS.VK_SHIFT:
case OS.VK_MENU:
case OS.VK_CONTROL:
case OS.VK_CAPITAL:
case OS.VK_NUMLOCK:
case OS.VK_SCROLL:
break;
default: {
/*
* Bug in Windows. The high bit in the result of MapVirtualKey() on
* Windows NT is bit 32 while the high bit on Windows 95 is bit 16.
* They should both be bit 32. The fix is to test the right bit.
*/
int mapKey = OS.MapVirtualKey ((int)/*64*/keyMsg.wParam, 2);
if (mapKey != 0) {
accentKey = (mapKey & (OS.IsWinNT ? 0x80000000 : 0x8000)) != 0;
if (!accentKey) {
for (int i=0; i<ACCENTS.length; i++) {
int value = OS.VkKeyScan (ACCENTS [i]);
if (value != -1 && (value & 0xFF) == keyMsg.wParam) {
int state = value >> 8;
if ((OS.GetKeyState (OS.VK_SHIFT) < 0) == ((state & 0x1) != 0) &&
(OS.GetKeyState (OS.VK_CONTROL) < 0) == ((state & 0x2) != 0) &&
(OS.GetKeyState (OS.VK_MENU) < 0) == ((state & 0x4) != 0)) {
if ((state & 0x7) != 0) accentKey = true;
break;
}
}
}
}
}
break;
}
}
}
break;
}
}
if (!accentKey && !ignoreNextKey) {
keyMsg.hwnd = control.handle;
int flags = OS.PM_REMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE;
do {
if (!(consumed |= filterMessage (keyMsg))) {
OS.TranslateMessage (keyMsg);
consumed |= OS.DispatchMessage (keyMsg) == 1;
}
} while (OS.PeekMessage (keyMsg, keyMsg.hwnd, OS.WM_KEYFIRST, OS.WM_KEYLAST, flags));
}
switch (keyMsg.message) {
case OS.WM_KEYDOWN:
case OS.WM_SYSKEYDOWN: {
switch ((int)/*64*/keyMsg.wParam) {
case OS.VK_SHIFT:
case OS.VK_MENU:
case OS.VK_CONTROL:
case OS.VK_CAPITAL:
case OS.VK_NUMLOCK:
case OS.VK_SCROLL:
break;
default: {
ignoreNextKey = accentKey;
break;
}
}
}
}
}
switch ((int)/*64*/keyMsg.wParam) {
case OS.VK_SHIFT:
case OS.VK_MENU:
case OS.VK_CONTROL:
case OS.VK_CAPITAL:
case OS.VK_NUMLOCK:
case OS.VK_SCROLL:
consumed = true;
}
if (consumed) {
int /*long*/ hHeap = OS.GetProcessHeap ();
OS.HeapFree (hHeap, 0, lParam);
} else {
OS.PostMessage (embeddedHwnd, SWT_KEYMSG, wParam, lParam);
}
return 0;
}
case SWT_TRAYICONMSG: {
if (tray != null) {
TrayItem [] items = tray.items;
for (int i=0; i<items.length; i++) {
TrayItem item = items [i];
if (item != null && item.id == wParam) {
return item.messageProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
}
}
return 0;
}
case OS.WM_ACTIVATEAPP: {
/*
* Feature in Windows. When multiple shells are
* disabled and one of the shells has an enabled
* dialog child and the user selects a disabled
* shell that does not have the enabled dialog
* child using the Task bar, Windows brings the
* disabled shell to the front. As soon as the
* user clicks on the disabled shell, the enabled
* dialog child comes to the front. This behavior
* is unspecified and seems strange. Normally, a
* disabled shell is frozen on the screen and the
* user cannot change the z-order by clicking with
* the mouse. The fix is to look for WM_ACTIVATEAPP
* and force the enabled dialog child to the front.
* This is typically what the user is expecting.
*
* NOTE: If the modal shell is disabled for any
* reason, it should not be brought to the front.
*/
if (wParam != 0) {
if (!isXMouseActive ()) {
int /*long*/ hwndActive = OS.GetActiveWindow ();
if (hwndActive != 0 && OS.IsWindowEnabled (hwndActive)) break;
Shell modal = modalDialog != null ? modalDialog.parent : getModalShell ();
if (modal != null && !modal.isDisposed ()) {
int /*long*/ hwndModal = modal.handle;
if (OS.IsWindowEnabled (hwndModal)) {
modal.bringToTop ();
if (modal.isDisposed ()) break;
}
int /*long*/ hwndPopup = OS.GetLastActivePopup (hwndModal);
if (hwndPopup != 0 && hwndPopup != modal.handle) {
if (getControl (hwndPopup) == null) {
if (OS.IsWindowEnabled (hwndPopup)) {
OS.SetActiveWindow (hwndPopup);
}
}
}
}
}
}
break;
}
case OS.WM_ENDSESSION: {
if (wParam != 0) {
dispose ();
/*
* When the session is ending, no SWT program can continue
* to run. In order to avoid running code after the display
* has been disposed, exit from Java.
*/
/* This code is intentionally commented */
// System.exit (0);
}
break;
}
case OS.WM_QUERYENDSESSION: {
Event event = new Event ();
sendEvent (SWT.Close, event);
if (!event.doit) return 0;
break;
}
case OS.WM_DWMCOLORIZATIONCOLORCHANGED: {
OS.SetTimer (hwndMessage, SETTINGS_ID, SETTINGS_DELAY, 0);
break;
}
case OS.WM_SETTINGCHANGE: {
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) {
OS.SetTimer (hwndMessage, SETTINGS_ID, SETTINGS_DELAY, 0);
break;
}
switch ((int)/*64*/wParam) {
case 0:
case 1:
case OS.SPI_SETHIGHCONTRAST:
OS.SetTimer (hwndMessage, SETTINGS_ID, SETTINGS_DELAY, 0);
}
break;
}
case OS.WM_THEMECHANGED: {
if (OS.COMCTL32_MAJOR >= 6) {
if (hButtonTheme != 0) OS.CloseThemeData (hButtonTheme);
if (hEditTheme != 0) OS.CloseThemeData (hEditTheme);
if (hExplorerBarTheme != 0) OS.CloseThemeData (hExplorerBarTheme);
if (hScrollBarTheme != 0) OS.CloseThemeData (hScrollBarTheme);
if (hTabTheme != 0) OS.CloseThemeData (hTabTheme);
hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0;
}
break;
}
case OS.WM_TIMER: {
if (wParam == SETTINGS_ID) {
OS.KillTimer (hwndMessage, SETTINGS_ID);
runSettings ();
} else {
runTimer (wParam);
}
break;
}
default: {
if ((int)/*64*/msg == SWT_TASKBARCREATED) {
if (tray != null) {
TrayItem [] items = tray.items;
for (int i=0; i<items.length; i++) {
TrayItem item = items [i];
if (item != null) item.recreate ();
}
}
}
}
}
return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
int /*long*/ monitorEnumProc (int /*long*/ hmonitor, int /*long*/ hdc, int /*long*/ lprcMonitor, int /*long*/ dwData) {
if (monitorCount >= monitors.length) {
Monitor[] newMonitors = new Monitor [monitors.length + 4];
System.arraycopy (monitors, 0, newMonitors, 0, monitors.length);
monitors = newMonitors;
}
MONITORINFO lpmi = new MONITORINFO ();
lpmi.cbSize = MONITORINFO.sizeof;
OS.GetMonitorInfo (hmonitor, lpmi);
Monitor monitor = new Monitor ();
monitor.handle = hmonitor;
monitor.x = lpmi.rcMonitor_left;
monitor.y = lpmi.rcMonitor_top;
monitor.width = lpmi.rcMonitor_right - lpmi.rcMonitor_left;
monitor.height = lpmi.rcMonitor_bottom - lpmi.rcMonitor_top;
monitor.clientX = lpmi.rcWork_left;
monitor.clientY = lpmi.rcWork_top;
monitor.clientWidth = lpmi.rcWork_right - lpmi.rcWork_left;
monitor.clientHeight = lpmi.rcWork_bottom - lpmi.rcWork_top;
monitors [monitorCount++] = monitor;
return 1;
}
int /*long*/ msgFilterProc (int /*long*/ code, int /*long*/ wParam, int /*long*/ lParam) {
switch ((int)/*64*/code) {
case OS.MSGF_COMMCTRL_BEGINDRAG: {
if (!runDragDrop && !dragCancelled) {
OS.MoveMemory (hookMsg, lParam, MSG.sizeof);
if (hookMsg.message == OS.WM_MOUSEMOVE) {
dragCancelled = true;
OS.SendMessage (hookMsg.hwnd, OS.WM_CANCELMODE, 0, 0);
}
}
break;
}
/*
* Feature in Windows. For some reason, when the user clicks
* a table or tree, the Windows hook WH_MSGFILTER is sent when
* an input event from a dialog box, message box, menu, or scroll
* bar did not occur, causing async messages to run at the wrong
* time. The fix is to check the message filter code.
*/
case OS.MSGF_DIALOGBOX:
case OS.MSGF_MAINLOOP:
case OS.MSGF_MENU:
case OS.MSGF_MOVE:
case OS.MSGF_MESSAGEBOX:
case OS.MSGF_NEXTWINDOW:
case OS.MSGF_SCROLLBAR:
case OS.MSGF_SIZE: {
if (runMessages) {
OS.MoveMemory (hookMsg, lParam, MSG.sizeof);
if (hookMsg.message == OS.WM_NULL) {
MSG msg = new MSG ();
int flags = OS.PM_NOREMOVE | OS.PM_NOYIELD | OS.PM_QS_INPUT | OS.PM_QS_POSTMESSAGE;
if (!OS.PeekMessage (msg, 0, 0, 0, flags)) {
if (runAsyncMessages (false)) wakeThread ();
}
}
}
break;
}
}
return OS.CallNextHookEx (filterHook, (int)/*64*/code, wParam, lParam);
}
int numpadKey (int key) {
switch (key) {
case OS.VK_NUMPAD0: return '0';
case OS.VK_NUMPAD1: return '1';
case OS.VK_NUMPAD2: return '2';
case OS.VK_NUMPAD3: return '3';
case OS.VK_NUMPAD4: return '4';
case OS.VK_NUMPAD5: return '5';
case OS.VK_NUMPAD6: return '6';
case OS.VK_NUMPAD7: return '7';
case OS.VK_NUMPAD8: return '8';
case OS.VK_NUMPAD9: return '9';
case OS.VK_MULTIPLY: return '*';
case OS.VK_ADD: return '+';
case OS.VK_SEPARATOR: return '\0';
case OS.VK_SUBTRACT: return '-';
case OS.VK_DECIMAL: return '.';
case OS.VK_DIVIDE: return '/';
}
return 0;
}
/**
* Generate a low level system event.
*
* <code>post</code> is used to generate low level keyboard
* and mouse events. The intent is to enable automated UI
* testing by simulating the input from the user. Most
* SWT applications should never need to call this method.
* <p>
* Note that this operation can fail when the operating system
* fails to generate the event for any reason. For example,
* this can happen when there is no such key or mouse button
* or when the system event queue is full.
* </p>
* <p>
* <b>Event Types:</b>
* <p>KeyDown, KeyUp
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type KeyDown or KeyUp</li>
* <p> Either one of:
* <li>(in) character a character that corresponds to a keyboard key</li>
* <li>(in) keyCode the key code of the key that was typed,
* as defined by the key code constants in class <code>SWT</code></li>
* </ul>
* <p>MouseDown, MouseUp</p>
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type MouseDown or MouseUp
* <li>(in) button the button that is pressed or released
* </ul>
* <p>MouseMove</p>
* <p>The following fields in the <code>Event</code> apply:
* <ul>
* <li>(in) type MouseMove
* <li>(in) x the x coordinate to move the mouse pointer to in screen coordinates
* <li>(in) y the y coordinate to move the mouse pointer to in screen coordinates
* </ul>
* </dl>
*
* @param event the event to be generated
*
* @return true if the event was generated or false otherwise
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the event is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 3.0
*
*/
public boolean post (Event event) {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
if (event == null) error (SWT.ERROR_NULL_ARGUMENT);
int type = event.type;
switch (type){
case SWT.KeyDown:
case SWT.KeyUp: {
KEYBDINPUT inputs = new KEYBDINPUT ();
inputs.wVk = (short) untranslateKey (event.keyCode);
if (inputs.wVk == 0) {
char key = event.character;
switch (key) {
case SWT.BS: inputs.wVk = (short) OS.VK_BACK; break;
case SWT.CR: inputs.wVk = (short) OS.VK_RETURN; break;
case SWT.DEL: inputs.wVk = (short) OS.VK_DELETE; break;
case SWT.ESC: inputs.wVk = (short) OS.VK_ESCAPE; break;
case SWT.TAB: inputs.wVk = (short) OS.VK_TAB; break;
/*
* Since there is no LF key on the keyboard, do not attempt
* to map LF to CR or attempt to post an LF key.
*/
// case SWT.LF: inputs.wVk = (short) OS.VK_RETURN; break;
case SWT.LF: return false;
default: {
if (OS.IsWinCE) {
inputs.wVk = (short)/*64*/OS.CharUpper ((short) key);
} else {
inputs.wVk = OS.VkKeyScan ((short) wcsToMbcs (key, 0));
if (inputs.wVk == -1) return false;
inputs.wVk &= 0xFF;
}
}
}
}
inputs.dwFlags = type == SWT.KeyUp ? OS.KEYEVENTF_KEYUP : 0;
int /*long*/ hHeap = OS.GetProcessHeap ();
int /*long*/ pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof);
OS.MoveMemory(pInputs, new int[] {OS.INPUT_KEYBOARD}, 4);
//TODO - DWORD type of INPUT structure aligned to 8 bytes on 64 bit
OS.MoveMemory (pInputs + OS.PTR_SIZEOF, inputs, KEYBDINPUT.sizeof);
boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0;
OS.HeapFree (hHeap, 0, pInputs);
return result;
}
case SWT.MouseDown:
case SWT.MouseMove:
case SWT.MouseUp:
case SWT.MouseWheel: {
MOUSEINPUT inputs = new MOUSEINPUT ();
if (type == SWT.MouseMove){
inputs.dwFlags = OS.MOUSEEVENTF_MOVE | OS.MOUSEEVENTF_ABSOLUTE;
int x= 0, y = 0, width = 0, height = 0;
if (OS.WIN32_VERSION >= OS.VERSION (5, 0)) {
inputs.dwFlags |= OS.MOUSEEVENTF_VIRTUALDESK;
x = OS.GetSystemMetrics (OS.SM_XVIRTUALSCREEN);
y = OS.GetSystemMetrics (OS.SM_YVIRTUALSCREEN);
width = OS.GetSystemMetrics (OS.SM_CXVIRTUALSCREEN);
height = OS.GetSystemMetrics (OS.SM_CYVIRTUALSCREEN);
} else {
width = OS.GetSystemMetrics (OS.SM_CXSCREEN);
height = OS.GetSystemMetrics (OS.SM_CYSCREEN);
}
inputs.dx = ((event.x - x) * 65535 + width - 2) / (width - 1);
inputs.dy = ((event.y - y) * 65535 + height - 2) / (height - 1);
} else {
if (type == SWT.MouseWheel) {
if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false;
inputs.dwFlags = OS.MOUSEEVENTF_WHEEL;
switch (event.detail) {
case SWT.SCROLL_PAGE:
inputs.mouseData = event.count * OS.WHEEL_DELTA;
break;
case SWT.SCROLL_LINE:
int [] value = new int [1];
OS.SystemParametersInfo (OS.SPI_GETWHEELSCROLLLINES, 0, value, 0);
inputs.mouseData = event.count * OS.WHEEL_DELTA / value [0];
break;
default: return false;
}
} else {
switch (event.button) {
case 1: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_LEFTDOWN : OS.MOUSEEVENTF_LEFTUP; break;
case 2: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_MIDDLEDOWN : OS.MOUSEEVENTF_MIDDLEUP; break;
case 3: inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_RIGHTDOWN : OS.MOUSEEVENTF_RIGHTUP; break;
case 4: {
if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false;
inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP;
inputs.mouseData = OS.XBUTTON1;
break;
}
case 5: {
if (OS.WIN32_VERSION < OS.VERSION (5, 0)) return false;
inputs.dwFlags = type == SWT.MouseDown ? OS.MOUSEEVENTF_XDOWN : OS.MOUSEEVENTF_XUP;
inputs.mouseData = OS.XBUTTON2;
break;
}
default: return false;
}
}
}
int /*long*/ hHeap = OS.GetProcessHeap ();
int /*long*/ pInputs = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, INPUT.sizeof);
OS.MoveMemory(pInputs, new int[] {OS.INPUT_MOUSE}, 4);
//TODO - DWORD type of INPUT structure aligned to 8 bytes on 64 bit
OS.MoveMemory (pInputs + OS.PTR_SIZEOF, inputs, MOUSEINPUT.sizeof);
boolean result = OS.SendInput (1, pInputs, INPUT.sizeof) != 0;
OS.HeapFree (hHeap, 0, pInputs);
return result;
}
}
return false;
}
}
void postEvent (Event event) {
/*
* Place the event at the end of the event queue.
* This code is always called in the Display's
* thread so it must be re-enterant but does not
* need to be synchronized.
*/
if (eventQueue == null) eventQueue = new Event [4];
int index = 0;
int length = eventQueue.length;
while (index < length) {
if (eventQueue [index] == null) break;
index++;
}
if (index == length) {
Event [] newQueue = new Event [length + 4];
System.arraycopy (eventQueue, 0, newQueue, 0, length);
eventQueue = newQueue;
}
eventQueue [index] = event;
}
/**
* Reads an event from the operating system's event queue,
* dispatches it appropriately, and returns <code>true</code>
* if there is potentially more work to do, or <code>false</code>
* if the caller can sleep until another event is placed on
* the event queue.
* <p>
* In addition to checking the system event queue, this method also
* checks if any inter-thread messages (created by <code>syncExec()</code>
* or <code>asyncExec()</code>) are waiting to be processed, and if
* so handles them before returning.
* </p>
*
* @return <code>false</code> if the caller can sleep upon return from this method
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li>
* </ul>
*
* @see #sleep
* @see #wake
*/
public boolean readAndDispatch () {
checkDevice ();
lpStartupInfo = null;
drawMenuBars ();
runPopups ();
if (OS.PeekMessage (msg, 0, 0, 0, OS.PM_REMOVE)) {
if (!filterMessage (msg)) {
OS.TranslateMessage (msg);
OS.DispatchMessage (msg);
}
runDeferredEvents ();
return true;
}
return runMessages && runAsyncMessages (false);
}
static void register (Display display) {
synchronized (Device.class) {
for (int i=0; i<Displays.length; i++) {
if (Displays [i] == null) {
Displays [i] = display;
return;
}
}
Display [] newDisplays = new Display [Displays.length + 4];
System.arraycopy (Displays, 0, newDisplays, 0, Displays.length);
newDisplays [Displays.length] = display;
Displays = newDisplays;
}
}
/**
* Releases any internal resources back to the operating
* system and clears all fields except the device handle.
* <p>
* Disposes all shells which are currently open on the display.
* After this method has been invoked, all related related shells
* will answer <code>true</code> when sent the message
* <code>isDisposed()</code>.
* </p><p>
* When a device is destroyed, resources that were acquired
* on behalf of the programmer need to be returned to the
* operating system. For example, if the device allocated a
* font to be used as the system font, this font would be
* freed in <code>release</code>. Also,to assist the garbage
* collector and minimize the amount of memory that is not
* reclaimed when the programmer keeps a reference to a
* disposed device, all fields except the handle are zero'd.
* The handle is needed by <code>destroy</code>.
* </p>
* This method is called before <code>destroy</code>.
*
* @see Device#dispose
* @see #destroy
*/
protected void release () {
sendEvent (SWT.Dispose, new Event ());
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) {
Shell shell = shells [i];
if (!shell.isDisposed ()) shell.dispose ();
}
if (tray != null) tray.dispose ();
tray = null;
while (readAndDispatch ()) {}
if (disposeList != null) {
for (int i=0; i<disposeList.length; i++) {
if (disposeList [i] != null) disposeList [i].run ();
}
}
disposeList = null;
synchronizer.releaseSynchronizer ();
synchronizer = null;
releaseDisplay ();
super.release ();
}
void releaseDisplay () {
if (embeddedHwnd != 0) {
OS.PostMessage (embeddedHwnd, SWT_DESTROY, 0, 0);
}
/* Release XP Themes */
if (OS.COMCTL32_MAJOR >= 6) {
if (hButtonTheme != 0) OS.CloseThemeData (hButtonTheme);
if (hEditTheme != 0) OS.CloseThemeData (hEditTheme);
if (hExplorerBarTheme != 0) OS.CloseThemeData (hExplorerBarTheme);
if (hScrollBarTheme != 0) OS.CloseThemeData (hScrollBarTheme);
if (hTabTheme != 0) OS.CloseThemeData (hTabTheme);
hButtonTheme = hEditTheme = hExplorerBarTheme = hScrollBarTheme = hTabTheme = 0;
}
/* Unhook the message hook */
if (!OS.IsWinCE) {
if (msgHook != 0) OS.UnhookWindowsHookEx (msgHook);
msgHook = 0;
}
/* Unhook the filter hook */
if (!OS.IsWinCE) {
if (filterHook != 0) OS.UnhookWindowsHookEx (filterHook);
filterHook = 0;
msgFilterCallback.dispose ();
msgFilterCallback = null;
msgFilterProc = 0;
}
/* Unhook the idle hook */
if (!OS.IsWinCE) {
if (idleHook != 0) OS.UnhookWindowsHookEx (idleHook);
idleHook = 0;
foregroundIdleCallback.dispose ();
foregroundIdleCallback = null;
foregroundIdleProc = 0;
}
/* Destroy the message only HWND */
if (hwndMessage != 0) OS.DestroyWindow (hwndMessage);
hwndMessage = 0;
messageCallback.dispose ();
messageCallback = null;
messageProc = 0;
/* Unregister the SWT window class */
int /*long*/ hHeap = OS.GetProcessHeap ();
int /*long*/ hInstance = OS.GetModuleHandle (null);
OS.UnregisterClass (windowClass, hInstance);
/* Unregister the SWT drop shadow window class */
OS.UnregisterClass (windowShadowClass, hInstance);
windowClass = windowShadowClass = null;
windowCallback.dispose ();
windowCallback = null;
windowProc = 0;
/* Release the System fonts */
if (systemFont != null) systemFont.dispose ();
systemFont = null;
lfSystemFont = null;
/* Release the System Images */
if (errorImage != null) errorImage.dispose ();
if (infoImage != null) infoImage.dispose ();
if (questionImage != null) questionImage.dispose ();
if (warningIcon != null) warningIcon.dispose ();
errorImage = infoImage = questionImage = warningIcon = null;
/* Release Sort Indicators */
if (upArrow != null) upArrow.dispose ();
if (downArrow != null) downArrow.dispose ();
upArrow = downArrow = null;
/* Release the System Cursors */
for (int i = 0; i < cursors.length; i++) {
if (cursors [i] != null) cursors [i].dispose ();
}
cursors = null;
/* Release Acquired Resources */
if (resources != null) {
for (int i=0; i<resources.length; i++) {
if (resources [i] != null) resources [i].dispose ();
}
resources = null;
}
/* Release Custom Colors for ChooseColor */
if (lpCustColors != 0) OS.HeapFree (hHeap, 0, lpCustColors);
lpCustColors = 0;
/* Uninitialize OLE */
if (!OS.IsWinCE) OS.OleUninitialize ();
/* Uninitialize buffered painting */
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (6, 0)) {
OS.BufferedPaintUnInit ();
}
/* Release references */
thread = null;
msg = hookMsg = null;
keyboard = null;
modalDialog = null;
modalShells = null;
data = null;
keys = null;
values = null;
bars = popups = null;
indexTable = null;
timerIds = null;
controlTable = null;
lastControl = lastGetControl = lastHittestControl = null;
imageList = toolImageList = toolHotImageList = toolDisabledImageList = null;
timerList = null;
tableBuffer = null;
columnVisible = null;
eventTable = filterTable = null;
items = null;
clickRect = null;
hdr = null;
plvfi = null;
/* Release handles */
threadId = 0;
}
void releaseImageList (ImageList list) {
int i = 0;
int length = imageList.length;
while (i < length) {
if (imageList [i] == list) {
if (list.removeRef () > 0) return;
list.dispose ();
System.arraycopy (imageList, i + 1, imageList, i, --length - i);
imageList [length] = null;
for (int j=0; j<length; j++) {
if (imageList [j] != null) return;
}
imageList = null;
return;
}
i++;
}
}
void releaseToolImageList (ImageList list) {
int i = 0;
int length = toolImageList.length;
while (i < length) {
if (toolImageList [i] == list) {
if (list.removeRef () > 0) return;
list.dispose ();
System.arraycopy (toolImageList, i + 1, toolImageList, i, --length - i);
toolImageList [length] = null;
for (int j=0; j<length; j++) {
if (toolImageList [j] != null) return;
}
toolImageList = null;
return;
}
i++;
}
}
void releaseToolHotImageList (ImageList list) {
int i = 0;
int length = toolHotImageList.length;
while (i < length) {
if (toolHotImageList [i] == list) {
if (list.removeRef () > 0) return;
list.dispose ();
System.arraycopy (toolHotImageList, i + 1, toolHotImageList, i, --length - i);
toolHotImageList [length] = null;
for (int j=0; j<length; j++) {
if (toolHotImageList [j] != null) return;
}
toolHotImageList = null;
return;
}
i++;
}
}
void releaseToolDisabledImageList (ImageList list) {
int i = 0;
int length = toolDisabledImageList.length;
while (i < length) {
if (toolDisabledImageList [i] == list) {
if (list.removeRef () > 0) return;
list.dispose ();
System.arraycopy (toolDisabledImageList, i + 1, toolDisabledImageList, i, --length - i);
toolDisabledImageList [length] = null;
for (int j=0; j<length; j++) {
if (toolDisabledImageList [j] != null) return;
}
toolDisabledImageList = null;
return;
}
i++;
}
}
/**
* Removes the listener from the collection of listeners who will
* be notified when an event of the given type occurs anywhere in
* a widget. The event type is one of the event constants defined
* in class <code>SWT</code>.
*
* @param eventType the type of event to listen for
* @param listener the listener which should no longer be notified when the event occurs
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #addFilter
* @see #addListener
*
* @since 3.0
*/
public void removeFilter (int eventType, Listener listener) {
checkDevice ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (filterTable == null) return;
filterTable.unhook (eventType, listener);
if (filterTable.size () == 0) filterTable = null;
}
/**
* Removes the listener from the collection of listeners who will
* be notified when an event of the given type occurs. The event type
* is one of the event constants defined in class <code>SWT</code>.
*
* @param eventType the type of event to listen for
* @param listener the listener which should no longer be notified
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Listener
* @see SWT
* @see #addListener
*
* @since 2.0
*/
public void removeListener (int eventType, Listener listener) {
checkDevice ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (eventType, listener);
}
void removeBar (Menu menu) {
if (bars == null) return;
for (int i=0; i<bars.length; i++) {
if (bars [i] == menu) {
bars [i] = null;
return;
}
}
}
Control removeControl (int /*long*/ handle) {
if (handle == 0) return null;
lastControl = lastGetControl = null;
Control control = null;
int index;
if (USE_PROPERTY) {
index = (int)/*64*/OS.RemoveProp (handle, SWT_OBJECT_INDEX) - 1;
} else {
index = (int)/*64*/OS.GetWindowLongPtr (handle, OS.GWLP_USERDATA) - 1;
OS.SetWindowLongPtr (handle, OS.GWLP_USERDATA, 0);
}
if (0 <= index && index < controlTable.length) {
control = controlTable [index];
controlTable [index] = null;
indexTable [index] = freeSlot;
freeSlot = index;
}
return control;
}
void removeMenuItem (MenuItem item) {
if (items == null) return;
items [item.id - ID_START] = null;
}
void removePopup (Menu menu) {
if (popups == null) return;
for (int i=0; i<popups.length; i++) {
if (popups [i] == menu) {
popups [i] = null;
return;
}
}
}
boolean runAsyncMessages (boolean all) {
return synchronizer.runAsyncMessages (all);
}
boolean runDeferredEvents () {
/*
* Run deferred events. This code is always
* called in the Display's thread so it must
* be re-enterant but need not be synchronized.
*/
while (eventQueue != null) {
/* Take an event off the queue */
Event event = eventQueue [0];
if (event == null) break;
int length = eventQueue.length;
System.arraycopy (eventQueue, 1, eventQueue, 0, --length);
eventQueue [length] = null;
/* Run the event */
Widget widget = event.widget;
if (widget != null && !widget.isDisposed ()) {
Widget item = event.item;
if (item == null || !item.isDisposed ()) {
widget.sendEvent (event);
}
}
/*
* At this point, the event queue could
* be null due to a recursive invocation
* when running the event.
*/
}
/* Clear the queue */
eventQueue = null;
return true;
}
boolean runPopups () {
if (popups == null) return false;
boolean result = false;
while (popups != null) {
Menu menu = popups [0];
if (menu == null) break;
int length = popups.length;
System.arraycopy (popups, 1, popups, 0, --length);
popups [length] = null;
runDeferredEvents ();
if (!menu.isDisposed ()) menu._setVisible (true);
result = true;
}
popups = null;
return result;
}
void runSettings () {
Font oldFont = getSystemFont ();
saveResources ();
updateImages ();
sendEvent (SWT.Settings, null);
Font newFont = getSystemFont ();
boolean sameFont = oldFont.equals (newFont);
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) {
Shell shell = shells [i];
if (!shell.isDisposed ()) {
if (!sameFont) {
shell.updateFont (oldFont, newFont);
}
/* This code is intentionally commented */
//shell.redraw (true);
shell.layout (true, true);
}
}
}
boolean runTimer (int /*long*/ id) {
if (timerList != null && timerIds != null) {
int index = 0;
while (index <timerIds.length) {
if (timerIds [index] == id) {
OS.KillTimer (hwndMessage, timerIds [index]);
timerIds [index] = 0;
Runnable runnable = timerList [index];
timerList [index] = null;
if (runnable != null) runnable.run ();
return true;
}
index++;
}
}
return false;
}
void saveResources () {
int resourceCount = 0;
if (resources == null) {
resources = new Resource [RESOURCE_SIZE];
} else {
resourceCount = resources.length;
Resource [] newResources = new Resource [resourceCount + RESOURCE_SIZE];
System.arraycopy (resources, 0, newResources, 0, resourceCount);
resources = newResources;
}
if (systemFont != null) {
if (!OS.IsWinCE) {
NONCLIENTMETRICS info = OS.IsUnicode ? (NONCLIENTMETRICS) new NONCLIENTMETRICSW () : new NONCLIENTMETRICSA ();
info.cbSize = NONCLIENTMETRICS.sizeof;
if (OS.SystemParametersInfo (OS.SPI_GETNONCLIENTMETRICS, 0, info, 0)) {
LOGFONT logFont = OS.IsUnicode ? (LOGFONT) ((NONCLIENTMETRICSW)info).lfMessageFont : ((NONCLIENTMETRICSA)info).lfMessageFont;
if (lfSystemFont == null ||
logFont.lfCharSet != lfSystemFont.lfCharSet ||
logFont.lfHeight != lfSystemFont.lfHeight ||
logFont.lfWidth != lfSystemFont.lfWidth ||
logFont.lfEscapement != lfSystemFont.lfEscapement ||
logFont.lfOrientation != lfSystemFont.lfOrientation ||
logFont.lfWeight != lfSystemFont.lfWeight ||
logFont.lfItalic != lfSystemFont.lfItalic ||
logFont.lfUnderline != lfSystemFont.lfUnderline ||
logFont.lfStrikeOut != lfSystemFont.lfStrikeOut ||
logFont.lfCharSet != lfSystemFont.lfCharSet ||
logFont.lfOutPrecision != lfSystemFont.lfOutPrecision ||
logFont.lfClipPrecision != lfSystemFont.lfClipPrecision ||
logFont.lfQuality != lfSystemFont.lfQuality ||
logFont.lfPitchAndFamily != lfSystemFont.lfPitchAndFamily ||
!getFontName (logFont).equals (getFontName (lfSystemFont))) {
resources [resourceCount++] = systemFont;
lfSystemFont = logFont;
systemFont = null;
}
}
}
}
if (errorImage != null) resources [resourceCount++] = errorImage;
if (infoImage != null) resources [resourceCount++] = infoImage;
if (questionImage != null) resources [resourceCount++] = questionImage;
if (warningIcon != null) resources [resourceCount++] = warningIcon;
errorImage = infoImage = questionImage = warningIcon = null;
for (int i=0; i<cursors.length; i++) {
if (cursors [i] != null) resources [resourceCount++] = cursors [i];
cursors [i] = null;
}
if (resourceCount < RESOURCE_SIZE) {
Resource [] newResources = new Resource [resourceCount];
System.arraycopy (resources, 0, newResources, 0, resourceCount);
resources = newResources;
}
}
void sendEvent (int eventType, Event event) {
if (eventTable == null && filterTable == null) {
return;
}
if (event == null) event = new Event ();
event.display = this;
event.type = eventType;
if (event.time == 0) event.time = getLastEventTime ();
if (!filterEvent (event)) {
if (eventTable != null) eventTable.sendEvent (event);
}
}
/**
* Sets the location of the on-screen pointer relative to the top left corner
* of the screen. <b>Note: It is typically considered bad practice for a
* program to move the on-screen pointer location.</b>
*
* @param x the new x coordinate for the cursor
* @param y the new y coordinate for the cursor
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.1
*/
public void setCursorLocation (int x, int y) {
checkDevice ();
OS.SetCursorPos (x, y);
}
/**
* Sets the location of the on-screen pointer relative to the top left corner
* of the screen. <b>Note: It is typically considered bad practice for a
* program to move the on-screen pointer location.</b>
*
* @param point new position
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_NULL_ARGUMENT - if the point is null
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @since 2.0
*/
public void setCursorLocation (Point point) {
checkDevice ();
if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
setCursorLocation (point.x, point.y);
}
/**
* Sets the application defined property of the receiver
* with the specified name to the given argument.
* <p>
* Applications may have associated arbitrary objects with the
* receiver in this fashion. If the objects stored in the
* properties need to be notified when the display is disposed
* of, it is the application's responsibility provide a
* <code>disposeExec()</code> handler which does so.
* </p>
*
* @param key the name of the property
* @param value the new value for the property
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the key is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #getData(String)
* @see #disposeExec(Runnable)
*/
public void setData (String key, Object value) {
checkDevice ();
if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
if (key.equals (RUN_MESSAGES_IN_IDLE_KEY)) {
Boolean data = (Boolean) value;
runMessagesInIdle = data != null && data.booleanValue ();
return;
}
if (key.equals (RUN_MESSAGES_IN_MESSAGE_PROC_KEY)) {
Boolean data = (Boolean) value;
runMessagesInMessageProc = data != null && data.booleanValue ();
return;
}
/* Remove the key/value pair */
if (value == null) {
if (keys == null) return;
int index = 0;
while (index < keys.length && !keys [index].equals (key)) index++;
if (index == keys.length) return;
if (keys.length == 1) {
keys = null;
values = null;
} else {
String [] newKeys = new String [keys.length - 1];
Object [] newValues = new Object [values.length - 1];
System.arraycopy (keys, 0, newKeys, 0, index);
System.arraycopy (keys, index + 1, newKeys, index, newKeys.length - index);
System.arraycopy (values, 0, newValues, 0, index);
System.arraycopy (values, index + 1, newValues, index, newValues.length - index);
keys = newKeys;
values = newValues;
}
return;
}
/* Add the key/value pair */
if (keys == null) {
keys = new String [] {key};
values = new Object [] {value};
return;
}
for (int i=0; i<keys.length; i++) {
if (keys [i].equals (key)) {
values [i] = value;
return;
}
}
String [] newKeys = new String [keys.length + 1];
Object [] newValues = new Object [values.length + 1];
System.arraycopy (keys, 0, newKeys, 0, keys.length);
System.arraycopy (values, 0, newValues, 0, values.length);
newKeys [keys.length] = key;
newValues [values.length] = value;
keys = newKeys;
values = newValues;
}
/**
* Sets the application defined, display specific data
* associated with the receiver, to the argument.
* The <em>display specific data</em> is a single,
* unnamed field that is stored with every display.
* <p>
* Applications may put arbitrary objects in this field. If
* the object stored in the display specific data needs to
* be notified when the display is disposed of, it is the
* application's responsibility provide a
* <code>disposeExec()</code> handler which does so.
* </p>
*
* @param data the new display specific data
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #getData()
* @see #disposeExec(Runnable)
*/
public void setData (Object data) {
checkDevice ();
this.data = data;
}
/**
* On platforms which support it, sets the application name
* to be the argument. On Motif, for example, this can be used
* to set the name used for resource lookup. Specifying
* <code>null</code> for the name clears it.
*
* @param name the new app name or <code>null</code>
*/
public static void setAppName (String name) {
/* Do nothing */
}
void setModalDialog (Dialog modalDailog) {
this.modalDialog = modalDailog;
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) shells [i].updateModal ();
}
void setModalShell (Shell shell) {
if (modalShells == null) modalShells = new Shell [4];
int index = 0, length = modalShells.length;
while (index < length) {
if (modalShells [index] == shell) return;
if (modalShells [index] == null) break;
index++;
}
if (index == length) {
Shell [] newModalShells = new Shell [length + 4];
System.arraycopy (modalShells, 0, newModalShells, 0, length);
modalShells = newModalShells;
}
modalShells [index] = shell;
Shell [] shells = getShells ();
for (int i=0; i<shells.length; i++) shells [i].updateModal ();
}
/**
* Sets the synchronizer used by the display to be
* the argument, which can not be null.
*
* @param synchronizer the new synchronizer for the display (must not be null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the synchronizer is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* <li>ERROR_FAILED_EXEC - if an exception occurred while running an inter-thread message</li>
* </ul>
*/
public void setSynchronizer (Synchronizer synchronizer) {
checkDevice ();
if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT);
if (synchronizer == this.synchronizer) return;
Synchronizer oldSynchronizer;
synchronized (Device.class) {
oldSynchronizer = this.synchronizer;
this.synchronizer = synchronizer;
}
if (oldSynchronizer != null) {
oldSynchronizer.runAsyncMessages(true);
}
}
int shiftedKey (int key) {
if (OS.IsWinCE) return 0;
/* Clear the virtual keyboard and press the shift key */
for (int i=0; i<keyboard.length; i++) keyboard [i] = 0;
keyboard [OS.VK_SHIFT] |= 0x80;
/* Translate the key to ASCII or UNICODE using the virtual keyboard */
if (OS.IsUnicode) {
char [] result = new char [1];
if (OS.ToUnicode (key, key, keyboard, result, 1, 0) == 1) return result [0];
} else {
short [] result = new short [1];
if (OS.ToAscii (key, key, keyboard, result, 0) == 1) return result [0];
}
return 0;
}
/**
* Causes the user-interface thread to <em>sleep</em> (that is,
* to be put in a state where it does not consume CPU cycles)
* until an event is received or it is otherwise awakened.
*
* @return <code>true</code> if an event requiring dispatching was placed on the queue.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #wake
*/
public boolean sleep () {
checkDevice ();
if (runMessages && getMessageCount () != 0) return true;
if (OS.IsWinCE) {
OS.MsgWaitForMultipleObjectsEx (0, 0, OS.INFINITE, OS.QS_ALLINPUT, OS.MWMO_INPUTAVAILABLE);
return true;
}
return OS.WaitMessage ();
}
/**
* Causes the <code>run()</code> method of the runnable to
* be invoked by the user-interface thread at the next
* reasonable opportunity. The thread which calls this method
* is suspended until the runnable completes. Specifying <code>null</code>
* as the runnable simply wakes the user-interface thread.
* <p>
* Note that at the time the runnable is invoked, widgets
* that have the receiver as their display may have been
* disposed. Therefore, it is necessary to check for this
* case inside the runnable before accessing the widget.
* </p>
*
* @param runnable code to run on the user-interface thread or <code>null</code>
*
* @exception SWTException <ul>
* <li>ERROR_FAILED_EXEC - if an exception occurred when executing the runnable</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #asyncExec
*/
public void syncExec (Runnable runnable) {
Synchronizer synchronizer;
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
synchronizer = this.synchronizer;
}
synchronizer.syncExec (runnable);
}
/**
* Causes the <code>run()</code> method of the runnable to
* be invoked by the user-interface thread after the specified
* number of milliseconds have elapsed. If milliseconds is less
* than zero, the runnable is not executed.
* <p>
* Note that at the time the runnable is invoked, widgets
* that have the receiver as their display may have been
* disposed. Therefore, it is necessary to check for this
* case inside the runnable before accessing the widget.
* </p>
*
* @param milliseconds the delay before running the runnable
* @param runnable code to run on the user-interface thread
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the runnable is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #asyncExec
*/
public void timerExec (int milliseconds, Runnable runnable) {
checkDevice ();
if (runnable == null) error (SWT.ERROR_NULL_ARGUMENT);
if (timerList == null) timerList = new Runnable [4];
if (timerIds == null) timerIds = new int /*long*/ [4];
int index = 0;
while (index < timerList.length) {
if (timerList [index] == runnable) break;
index++;
}
int /*long*/ timerId = 0;
if (index != timerList.length) {
timerId = timerIds [index];
if (milliseconds < 0) {
OS.KillTimer (hwndMessage, timerId);
timerList [index] = null;
timerIds [index] = 0;
return;
}
} else {
if (milliseconds < 0) return;
index = 0;
while (index < timerList.length) {
if (timerList [index] == null) break;
index++;
}
timerId = nextTimerId++;
if (index == timerList.length) {
Runnable [] newTimerList = new Runnable [timerList.length + 4];
System.arraycopy (timerList, 0, newTimerList, 0, timerList.length);
timerList = newTimerList;
int /*long*/ [] newTimerIds = new int /*long*/ [timerIds.length + 4];
System.arraycopy (timerIds, 0, newTimerIds, 0, timerIds.length);
timerIds = newTimerIds;
}
}
int /*long*/ newTimerID = OS.SetTimer (hwndMessage, timerId, milliseconds, 0);
if (newTimerID != 0) {
timerList [index] = runnable;
timerIds [index] = newTimerID;
}
}
boolean translateAccelerator (MSG msg, Control control) {
accelKeyHit = true;
boolean result = control.translateAccelerator (msg);
accelKeyHit = false;
return result;
}
static int translateKey (int key) {
for (int i=0; i<KeyTable.length; i++) {
if (KeyTable [i] [0] == key) return KeyTable [i] [1];
}
return 0;
}
boolean translateMnemonic (MSG msg, Control control) {
switch (msg.message) {
case OS.WM_CHAR:
case OS.WM_SYSCHAR:
return control.translateMnemonic (msg);
}
return false;
}
boolean translateTraversal (MSG msg, Control control) {
switch (msg.message) {
case OS.WM_KEYDOWN:
switch ((int)/*64*/msg.wParam) {
case OS.VK_RETURN:
case OS.VK_ESCAPE:
case OS.VK_TAB:
case OS.VK_UP:
case OS.VK_DOWN:
case OS.VK_LEFT:
case OS.VK_RIGHT:
case OS.VK_PRIOR:
case OS.VK_NEXT:
return control.translateTraversal (msg);
}
break;
case OS.WM_SYSKEYDOWN:
switch ((int)/*64*/msg.wParam) {
case OS.VK_MENU:
return control.translateTraversal (msg);
}
break;
}
return false;
}
static int untranslateKey (int key) {
for (int i=0; i<KeyTable.length; i++) {
if (KeyTable [i] [1] == key) return KeyTable [i] [0];
}
return 0;
}
/**
* Forces all outstanding paint requests for the display
* to be processed before this method returns.
*
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see Control#update()
*/
public void update() {
checkDevice ();
/*
* Feature in Windows. When an application does not remove
* events from the event queue for some time, Windows assumes
* the application is not responding and no longer sends paint
* events to the application. The fix is to detect that the
* application is not responding and call PeekMessage() with
* PM_REMOVE to tell Windows that the application is ready
* to dispatch events. Note that the message does not have
* to be found or dispatched in order to wake Windows up.
*
* NOTE: This allows other cross thread messages to be delivered,
* most notably WM_ACTIVATE.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION (4, 10)) {
if (OS.IsHungAppWindow (hwndMessage)) {
MSG msg = new MSG ();
int flags = OS.PM_REMOVE | OS.PM_NOYIELD;
OS.PeekMessage (msg, hwndMessage, SWT_NULL, SWT_NULL, flags);
}
}
Shell[] shells = getShells ();
for (int i=0; i<shells.length; i++) {
Shell shell = shells [i];
if (!shell.isDisposed ()) shell.update (true);
}
}
void updateImages () {
if (upArrow != null) upArrow.dispose ();
if (downArrow != null) downArrow.dispose ();
upArrow = downArrow = null;
for (int i=0; i<controlTable.length; i++) {
Control control = controlTable [i];
if (control != null) control.updateImages ();
}
}
/**
* If the receiver's user-interface thread was <code>sleep</code>ing,
* causes it to be awakened and start running again. Note that this
* method may be called from any thread.
*
* @exception SWTException <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li>
* </ul>
*
* @see #sleep
*/
public void wake () {
synchronized (Device.class) {
if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
if (thread == Thread.currentThread ()) return;
wakeThread ();
}
}
void wakeThread () {
if (OS.IsWinCE) {
OS.PostMessage (hwndMessage, OS.WM_NULL, 0, 0);
} else {
OS.PostThreadMessage (threadId, OS.WM_NULL, 0, 0);
}
}
/*
* Returns a single character, converted from the wide
* character set (WCS) used by Java to the specified
* multi-byte character set used by the operating system
* widgets.
*
* @param ch the WCS character
* @param codePage the code page used to convert the character
* @return the MBCS character
*/
static int wcsToMbcs (char ch, int codePage) {
if (OS.IsUnicode) return ch;
if (ch <= 0x7F) return ch;
TCHAR buffer = new TCHAR (codePage, ch, false);
return buffer.tcharAt (0);
}
/*
* Returns a single character, converted from the wide
* character set (WCS) used by Java to the default
* multi-byte character set used by the operating system
* widgets.
*
* @param ch the WCS character
* @return the MBCS character
*/
static int wcsToMbcs (char ch) {
return wcsToMbcs (ch, 0);
}
int /*long*/ windowProc (int /*long*/ hwnd, int /*long*/ msg, int /*long*/ wParam, int /*long*/ lParam) {
/*
* Feature in Windows. On Vista only, it is faster to
* compute and answer the data for the visible columns
* of a table when scrolling, rather than just return
* the data for each column when asked.
*/
if (columnVisible != null) {
if (msg == OS.WM_NOTIFY && hwndParent == hwnd) {
OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
switch (hdr.code) {
case OS.LVN_GETDISPINFOA:
case OS.LVN_GETDISPINFOW: {
OS.MoveMemory (plvfi, lParam, NMLVDISPINFO.sizeof);
if (0 <= plvfi.iSubItem && plvfi.iSubItem < columnCount) {
if (!columnVisible [plvfi.iSubItem]) return 0;
}
break;
}
}
}
}
/*
* Bug in Adobe Reader 7.0. For some reason, when Adobe
* Reader 7.0 is deactivated from within Internet Explorer,
* it sends thousands of consecutive WM_NCHITTEST messages
* to the control that is under the cursor. It seems that
* if the control takes some time to respond to the message,
* Adobe stops sending them. The fix is to detect this case
* and sleep.
*
* NOTE: Under normal circumstances, Windows will never send
* consecutive WM_NCHITTEST messages to the same control without
* another message (normally WM_SETCURSOR) in between.
*/
if ((int)/*64*/msg == OS.WM_NCHITTEST) {
if (hitCount++ >= 1024) {
try {Thread.sleep (1);} catch (Throwable t) {}
}
} else {
hitCount = 0;
}
if (lastControl != null && lastHwnd == hwnd) {
return lastControl.windowProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
int index;
if (USE_PROPERTY) {
index = (int)/*64*/OS.GetProp (hwnd, SWT_OBJECT_INDEX) - 1;
} else {
index = (int)/*64*/OS.GetWindowLongPtr (hwnd, OS.GWLP_USERDATA) - 1;
}
if (0 <= index && index < controlTable.length) {
Control control = controlTable [index];
if (control != null) {
lastHwnd = hwnd;
lastControl = control;
return control.windowProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
}
return OS.DefWindowProc (hwnd, (int)/*64*/msg, wParam, lParam);
}
static String withCrLf (String string) {
/* If the string is empty, return the string. */
int length = string.length ();
if (length == 0) return string;
/*
* Check for an LF or CR/LF and assume the rest of
* the string is formated that way. This will not
* work if the string contains mixed delimiters.
*/
int i = string.indexOf ('\n', 0);
if (i == -1) return string;
if (i > 0 && string.charAt (i - 1) == '\r') {
return string;
}
/*
* The string is formatted with LF. Compute the
* number of lines and the size of the buffer
* needed to hold the result
*/
i++;
int count = 1;
while (i < length) {
if ((i = string.indexOf ('\n', i)) == -1) break;
count++; i++;
}
count += length;
/* Create a new string with the CR/LF line terminator. */
i = 0;
StringBuffer result = new StringBuffer (count);
while (i < length) {
int j = string.indexOf ('\n', i);
if (j == -1) j = length;
result.append (string.substring (i, j));
if ((i = j) < length) {
result.append ("\r\n"); //$NON-NLS-1$
i++;
}
}
return result.toString ();
}
}