| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * (c) Copyright IBM Corp. 2000, 2001.
|
| * All Rights Reserved
|
| */
|
|
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.photon.*;
|
| 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><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see #syncExec |
| * @see #asyncExec |
| * @see #wake |
| * @see #readAndDispatch |
| * @see #sleep |
| * @see #dispose |
| */ |
| public class Display extends Device {
|
|
|
| /**** TEMPORARY CODE FOR EMULATED TABLE ***/
|
| static int textHighlightThickness = 0;
|
|
|
| /* TEMPORARY HACK FOR PHOTON */
|
| public boolean embedded;
|
|
|
| /* Photon Only Public Fields */
|
| public int app_context;
|
| // public int phEventSize = PhEvent_t.sizeof + 1024;
|
| // public int phEvent = OS.malloc (phEventSize);
|
|
|
| /* Deferred Events */
|
| Event [] eventQueue;
|
|
|
| /* Events Dispatching and Callback */
|
| Callback windowCallback, drawCallback, workCallback, inputCallback, hotkeyCallback;
|
| int windowProc, drawProc, workProc, inputProc, hotkeyProc, input, pulse;
|
| boolean idle;
|
|
|
| /* Sync/Async Widget Communication */
|
| Synchronizer synchronizer = new Synchronizer (this);
|
| Thread thread = Thread.currentThread ();
|
|
|
| /* Display Shutdown */
|
| Runnable [] disposeList;
|
|
|
| /* Timers */
|
| int [] timers;
|
| Runnable [] timerList;
|
| Callback timerCallback;
|
| int timerProc, timerHandle;
|
|
|
| /* Keyboard */
|
| int lastKey, lastAscii;
|
|
|
| /* Key Mappings. */
|
| private static final int [] [] KeyTable = {
|
|
|
| /* Keyboard and Mouse Masks */
|
| {OS.Pk_Alt_L, SWT.ALT},
|
| {OS.Pk_Alt_R, SWT.ALT},
|
| {OS.Pk_Shift_L, SWT.SHIFT},
|
| {OS.Pk_Shift_R, SWT.SHIFT},
|
| {OS.Pk_Control_L, SWT.CONTROL},
|
| {OS.Pk_Control_R, SWT.CONTROL},
|
|
|
| // {OS.VK_LBUTTON, SWT.BUTTON1},
|
| // {OS.VK_MBUTTON, SWT.BUTTON3},
|
| // {OS.VK_RBUTTON, SWT.BUTTON2},
|
|
|
| /* Non-Numeric Keypad Constants */
|
| {OS.Pk_Up, SWT.ARROW_UP},
|
| {OS.Pk_Down, SWT.ARROW_DOWN},
|
| {OS.Pk_Left, SWT.ARROW_LEFT},
|
| {OS.Pk_Right, SWT.ARROW_RIGHT},
|
| {OS.Pk_Prior, SWT.PAGE_UP},
|
| {OS.Pk_Next, SWT.PAGE_DOWN},
|
| {OS.Pk_Home, SWT.HOME},
|
| {OS.Pk_End, SWT.END},
|
| {OS.Pk_Insert, SWT.INSERT},
|
| // {OS.Pk_Delete, SWT.DELETE},
|
| // {OS.Pk_Escape, 0x001B},
|
|
|
| /* Functions Keys */
|
| {OS.Pk_F1, SWT.F1},
|
| {OS.Pk_F2, SWT.F2},
|
| {OS.Pk_F3, SWT.F3},
|
| {OS.Pk_F4, SWT.F4},
|
| {OS.Pk_F5, SWT.F5},
|
| {OS.Pk_F6, SWT.F6},
|
| {OS.Pk_F7, SWT.F7},
|
| {OS.Pk_F8, SWT.F8},
|
| {OS.Pk_F9, SWT.F9},
|
| {OS.Pk_F10, SWT.F10},
|
| {OS.Pk_F11, SWT.F11},
|
| {OS.Pk_F12, SWT.F12},
|
|
|
|
|
| /* Numeric Keypad Constants */
|
| /*
|
| {OS.XK_KP_Add, SWT.KP_PLUS},
|
| {OS.XK_KP_Subtract, SWT.KP_MINUS},
|
| {OS.XK_KP_Multiply, SWT.KP_TIMES},
|
| {OS.XK_KP_Divide, SWT.KP_DIVIDE},
|
| {OS.XK_KP_Decimal, SWT.KP_PERIOD},
|
| {OS.XK_KP_Enter, SWT.KP_ENTER},
|
| {OS.XK_KP_0, SWT.KP_0},
|
| {OS.XK_KP_1, SWT.KP_1},
|
| {OS.XK_KP_2, SWT.KP_2},
|
| {OS.XK_KP_3, SWT.KP_3},
|
| {OS.XK_KP_4, SWT.KP_4},
|
| {OS.XK_KP_5, SWT.KP_5},
|
| {OS.XK_KP_6, SWT.KP_6},
|
| {OS.XK_KP_7, SWT.KP_7},
|
| {OS.XK_KP_8, SWT.KP_8},
|
| {OS.XK_KP_9, SWT.KP_9},
|
| */
|
| };
|
|
|
| /* Multiple Displays. */
|
| static Display Default;
|
| static Display [] Displays = new Display [4];
|
|
|
| /* Window Classes */
|
| static int ClassesPtr;
|
| static int PtButton;
|
| static int PtList;
|
| static int PtLabel;
|
| static int PtWindow;
|
| static int PtToggleButton;
|
| static int PtComboBox;
|
| static int PtText;
|
| static int PtMultiText;
|
| static int PtScrollbar;
|
| static int PtScrollContainer;
|
| static int PtScrollArea;
|
| static int PtContainer;
|
| static int PtProgress;
|
| static int PtPanelGroup;
|
| static int PtPane;
|
| static int PtTree;
|
| static int PtSlider;
|
| static int PtSeparator;
|
|
|
| /* Colors */
|
| int WIDGET_DARK_SHADOW, WIDGET_NORMAL_SHADOW, WIDGET_LIGHT_SHADOW;
|
| int WIDGET_HIGHLIGHT_SHADOW, WIDGET_BACKGROUND, WIDGET_FOREGROUND, WIDGET_BORDER;
|
| int LIST_FOREGROUND, LIST_BACKGROUND, LIST_SELECTION, LIST_SELECTION_TEXT;
|
| int INFO_FOREGROUND, INFO_BACKGROUND;
|
|
|
| /* Fonts */
|
| byte [] TEXT_FONT, LIST_FONT;
|
|
|
| /* ScrollBars */
|
| int SCROLLBAR_WIDTH;
|
| int SCROLLBAR_HEIGHT;
|
| int SCROLLBAR_VERTICAL_BASIC_FLAGS;
|
| int SCROLLBAR_HORIZONTAL_BASIC_FLAGS;
|
|
|
| /* Package name */
|
| static final String PACKAGE_NAME;
|
| static {
|
| String name = Display.class.getName ();
|
| int index = name.lastIndexOf ('.');
|
| PACKAGE_NAME = name.substring (0, index + 1);
|
| }
|
|
|
| /* Photon Draw Buffer - shared by all widgets */
|
| static int DrawBufferSize = 1024 * 48;
|
|
|
| /* Display Data */
|
| Object data;
|
| String [] keys;
|
| Object [] values;
|
|
|
| /*
|
| * 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 not called from the thread that created the parent</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);
|
| }
|
|
|
| public Display (DeviceData data) {
|
| super (data);
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @param runnable code to run on the user-interface thread. |
| * |
| * @see #syncExec |
| */ |
| public void asyncExec (Runnable runnable) {
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| synchronizer.asyncExec (runnable);
|
| }
|
|
|
| /** |
| * Causes the system hardware to emit a short sound |
| * (if it supports this capability). |
| */ |
| public void beep () {
|
| checkDevice ();
|
| OS.PtBeep ();
|
| }
|
|
|
| protected void checkDevice () {
|
| if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| }
|
|
|
| synchronized void checkDisplay () {
|
| for (int i=0; i<Displays.length; i++) {
|
| if (Displays [i] != null && Displays [i].thread == thread) {
|
| error (SWT.ERROR_THREAD_INVALID_ACCESS);
|
| }
|
| }
|
| }
|
|
|
| protected void checkSubclass () {
|
| if (!isValidClass (getClass ())) error (SWT.ERROR_INVALID_SUBCLASS);
|
| }
|
|
|
| String convertToLf (String text) {
|
| int length = text.length ();
|
| if (length == 0) return text;
|
|
|
| /* Check for an LF or CR/LF. Assume the rest of the string
|
| * is formated that way. This will not work if the string
|
| * contains mixed delimiters. */
|
| int i = text.indexOf ('\n', 0);
|
| if (i == -1 || i == 0) return text;
|
| if (text.charAt (i - 1) != '\r') return text;
|
|
|
| /* The string is formatted with CR/LF.
|
| * Create a new string with the LF line delimiter. */
|
| i = 0;
|
| StringBuffer result = new StringBuffer ();
|
| while (i < length) {
|
| int j = text.indexOf ('\r', i);
|
| if (j == -1) j = length;
|
| String s = text.substring (i, j);
|
| result.append (s);
|
| i = j + 2;
|
| result.append ('\n');
|
| }
|
| return result.toString ();
|
| }
|
|
|
| protected void create (DeviceData data) {
|
| checkSubclass ();
|
| checkDisplay ();
|
| createDisplay (data);
|
| register ();
|
| if (Default == null) Default = this;
|
| }
|
|
|
| void createDisplay (DeviceData data) {
|
| OS.PtInit (null);
|
| OS.PgSetDrawBufferSize (DrawBufferSize);
|
| app_context = OS.PtCreateAppContext ();
|
| }
|
|
|
| synchronized void deregister () {
|
| for (int i=0; i<Displays.length; i++) {
|
| if (this == Displays [i]) Displays [i] = null;
|
| }
|
| }
|
|
|
| protected void destroy () {
|
| if (this == Default) Default = null;
|
| deregister ();
|
| destroyDisplay ();
|
| }
|
|
|
| void destroyDisplay () {
|
| // NEED to destroy app_context ???
|
| }
|
|
|
| /** |
| * Causes the <code>run()</code> method of the runnable to |
| * be invoked by the user-interface thread just before the |
| * receiver is disposed. |
| * |
| * @param runnable code to run at dispose time. |
| */ |
| 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;
|
| }
|
|
|
| int drawProc (int handle, int damage) {
|
| Widget widget = WidgetTable.get (handle);
|
| if (widget == null) return 0;
|
| return widget.processPaint (damage);
|
| }
|
|
|
| void error (int code) {
|
| SWT.error(code);
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @param thread the user-interface thread |
| * @return the display for the given thread |
| */ |
| public static synchronized Display findDisplay (Thread thread) {
|
| for (int i=0; i<Displays.length; i++) {
|
| Display display = Displays [i];
|
| if (display != null && display.thread == thread) {
|
| return display;
|
| }
|
| }
|
| 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. |
| * |
| * @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> |
| * </ul> |
| */ |
| public Widget findWidget (int handle) {
|
| checkDevice ();
|
| return WidgetTable.get (handle);
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public Shell getActiveShell () {
|
| checkDevice ();
|
| int handle = 0;
|
| while ((handle = OS.PtNextTopLevelWidget (handle)) != 0) {
|
| int state = OS.PtWindowGetState (handle);
|
| if (state != -1 && (state & OS.Ph_WM_STATE_ISFOCUS) != 0) {
|
| Widget widget = WidgetTable.get (handle);
|
| if (widget instanceof Shell) return (Shell) widget;
|
| }
|
| }
|
| 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> |
| * </ul> |
| */ |
| public Control getCursorControl () {
|
| checkDevice ();
|
| int ig = OS.PhInputGroup (0);
|
| PhCursorInfo_t info = new PhCursorInfo_t ();
|
| OS.PhQueryCursor ((short) ig, info);
|
| PhRect_t rect = new PhRect_t ();
|
| rect.ul_x = rect.lr_x = info.pos_x;
|
| rect.ul_y = rect.lr_y = info.pos_y;
|
| int handle = 0;
|
| //DOESN'T WORK WHEN SHELLS OVERLAP (NEED Z ORDER)
|
| while ((handle = OS.PtNextTopLevelWidget (handle)) != 0) {
|
| int child = handle, parent = 0;
|
| short [] x = new short [1], y = new short [1];
|
| do {
|
| OS.PtGetAbsPosition (child, x, y);
|
| rect.ul_x = rect.lr_x = (short) (info.pos_x - x [0]);
|
| rect.ul_y = rect.lr_y = (short) (info.pos_y - y [0]);
|
| if ((child = OS.PtHit (child, 1, rect)) == 0) break;
|
| parent = child;
|
| if (OS.PtWidgetIsClassMember (child, OS.PtContainer ()) == 0) break;
|
| } while (child != 0);
|
| if (parent != 0) {
|
| do {
|
| Widget widget = WidgetTable.get (parent);
|
| if (widget != null && widget instanceof Control) {
|
| Control control = (Control) widget;
|
| if (control.getEnabled ()) return control;
|
| return control;
|
| }
|
| } while ((parent = OS.PtWidgetParent (parent)) != 0);
|
| }
|
| }
|
| return null;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public Point getCursorLocation () {
|
| checkDevice ();
|
| int ig = OS.PhInputGroup (0);
|
| PhCursorInfo_t info = new PhCursorInfo_t ();
|
| OS.PhQueryCursor ((short)ig, info);
|
| return new Point (info.pos_x, info.pos_y);
|
| }
|
|
|
| /** |
| * 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 synchronized Display getCurrent () {
|
| Thread current = Thread.currentThread ();
|
| for (int i=0; i<Displays.length; i++) {
|
| Display display = Displays [i];
|
| if (display != null && display.thread == current) return display;
|
| }
|
| return null;
|
| }
|
|
|
| /** |
| * 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 synchronized Display getDefault () {
|
| if (Default == null) Default = new Display ();
|
| return Default;
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @param name the new app name |
| */ |
| public static void setAppName (String name) {
|
| /* Do nothing */
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public int getDoubleClickTime () {
|
| checkDevice ();
|
| //NOT DONE
|
| return 250;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public Control getFocusControl () {
|
| checkDevice ();
|
| int handle = 0;
|
| while ((handle = OS.PtNextTopLevelWidget (handle)) != 0) {
|
| int state = OS.PtWindowGetState (handle);
|
| if (state != -1 && (state & OS.Ph_WM_STATE_ISFOCUS) != 0) {
|
| int focusHandle = OS.PtContainerFindFocus (handle);
|
| if (focusHandle != 0) {
|
| Widget widget = WidgetTable.get (focusHandle);
|
| if (widget instanceof Control) return (Control) widget;
|
| }
|
| return null;
|
| }
|
| }
|
| return null;
|
| }
|
|
|
| /** |
| * Returns the maximum allowed depth of icons on this display. |
| * 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> |
| * </ul> |
| */ |
| public int getIconDepth () {
|
| return getDepth ();
|
| }
|
|
|
| /** |
| * Returns an 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> |
| * </ul> |
| */ |
| public Shell [] getShells () {
|
| checkDevice ();
|
| /*
|
| * NOTE: Need to check that the shells that belong
|
| * to another display have not been disposed by the
|
| * other display's thread as the shells list is being
|
| * processed.
|
| */
|
| int count = 0;
|
| Shell [] shells = WidgetTable.shells ();
|
| for (int i=0; i<shells.length; i++) {
|
| Shell shell = shells [i];
|
| if (!shell.isDisposed () && this == shell.getDisplay ()) {
|
| count++;
|
| }
|
| }
|
| if (count == shells.length) return shells;
|
| int index = 0;
|
| Shell [] result = new Shell [count];
|
| for (int i=0; i<shells.length; i++) {
|
| Shell shell = shells [i];
|
| if (!shell.isDisposed () && this == shell.getDisplay ()) {
|
| result [index++] = shell;
|
| }
|
| }
|
| return result;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| * |
| * @see SWT |
| */ |
| public Color getSystemColor (int id) {
|
| checkDevice ();
|
| int color = 0x000000;
|
| switch (id) {
|
| case SWT.COLOR_INFO_FOREGROUND: color = INFO_FOREGROUND; break;
|
| case SWT.COLOR_INFO_BACKGROUND: color = INFO_BACKGROUND; break;
|
| case SWT.COLOR_TITLE_FOREGROUND: color = 0x000000; break;
|
| case SWT.COLOR_TITLE_BACKGROUND: color = 0x6493E7; break;
|
| case SWT.COLOR_TITLE_BACKGROUND_GRADIENT: color = 0x0000FF; break;
|
| case SWT.COLOR_TITLE_INACTIVE_FOREGROUND: color = 0x000000; break;
|
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND: color = 0xABBBD3; break;
|
| case SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT: color = 0x0000FF; break;
|
| case SWT.COLOR_WIDGET_DARK_SHADOW: color = WIDGET_DARK_SHADOW; break;
|
| case SWT.COLOR_WIDGET_NORMAL_SHADOW: color = WIDGET_NORMAL_SHADOW; break;
|
| case SWT.COLOR_WIDGET_LIGHT_SHADOW: color = WIDGET_LIGHT_SHADOW; break;
|
| case SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW: color = WIDGET_HIGHLIGHT_SHADOW; break;
|
| case SWT.COLOR_WIDGET_BACKGROUND: color = WIDGET_BACKGROUND; break;
|
| case SWT.COLOR_WIDGET_FOREGROUND: color = WIDGET_FOREGROUND; break;
|
| case SWT.COLOR_WIDGET_BORDER: color = WIDGET_BORDER; break;
|
| case SWT.COLOR_LIST_FOREGROUND: color = LIST_FOREGROUND; break;
|
| case SWT.COLOR_LIST_BACKGROUND: color = LIST_BACKGROUND; break;
|
| case SWT.COLOR_LIST_SELECTION: color = LIST_SELECTION; break;
|
| case SWT.COLOR_LIST_SELECTION_TEXT: color = LIST_SELECTION_TEXT; break;
|
| default:
|
| return super.getSystemColor (id);
|
| }
|
| return Color.photon_new (this, color);
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public Font getSystemFont () {
|
| checkDevice ();
|
| return Font.photon_new (this, TEXT_FONT);
|
| }
|
|
|
| /** |
| * 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 |
| */ |
| public Thread getSyncThread () {
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| return synchronizer.syncThread;
|
| }
|
|
|
| /** |
| * Returns the user-interface thread for the receiver. |
| * |
| * @return the receiver's user-interface thread |
| */ |
| public Thread getThread () {
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| return thread;
|
| }
|
|
|
| int hotkeyProc (int handle, int data, int info) {
|
| Widget widget = WidgetTable.get (handle);
|
| if (widget == null) return OS.Pt_CONTINUE;
|
| return widget.processHotkey (data, info);
|
| }
|
|
|
| protected void init () {
|
| super.init ();
|
| initializeDisplay ();
|
| initializeWidgetClasses ();
|
| initializeWidgetColors ();
|
| initializeWidgetFonts ();
|
| initializeScrollbars ();
|
| }
|
|
|
| void initializeDisplay () {
|
| windowCallback = new Callback (this, "windowProc", 3);
|
| windowProc = windowCallback.getAddress ();
|
| if (windowProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
| drawCallback = new Callback (this, "drawProc", 2);
|
| drawProc = drawCallback.getAddress ();
|
| if (drawProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
| workCallback = new Callback (this, "workProc", 1);
|
| workProc = workCallback.getAddress ();
|
| if (workProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
| inputCallback = new Callback (this, "inputProc", 4);
|
| inputProc = inputCallback.getAddress ();
|
| if (inputProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
| timerCallback = new Callback (this, "timerProc", 3);
|
| timerProc = timerCallback.getAddress ();
|
| if (timerProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
| hotkeyCallback = new Callback (this, "hotkeyProc", 3);
|
| hotkeyProc = hotkeyCallback.getAddress ();
|
| if (hotkeyProc == 0) error (SWT.ERROR_NO_MORE_CALLBACKS);
|
|
|
| pulse = OS.PtAppCreatePulse (app_context, -1);
|
| input = OS.PtAppAddInput (app_context, pulse, inputProc, 0);
|
| int [] args = {
|
| OS.Pt_ARG_REGION_OPAQUE, 0, ~0,
|
| OS.Pt_ARG_FILL_COLOR, OS.Pg_TRANSPARENT, 0,
|
| OS.Pt_ARG_REGION_SENSE, OS.Ph_EV_TIMER, ~0,
|
| };
|
| OS.PtSetParentWidget (0);
|
| timerHandle = OS.PtCreateWidget (OS.PtRegion (), 0, args.length / 3, args);
|
| if (timerHandle == 0) error (SWT.ERROR_NO_HANDLES);
|
| OS.PtRealizeWidget (timerHandle);
|
| }
|
|
|
| void initializeScrollbars () {
|
| OS.PtSetParentWidget (0);
|
| int shellHandle = OS.PtCreateWidget (OS.PtWindow (), 0, 0, null);
|
| int textHandle = OS.PtCreateWidget (OS.PtMultiText (), shellHandle, 0, null);
|
| int child = OS.PtWidgetChildFront (textHandle);
|
| while (child != 0) {
|
| if (OS.PtWidgetClass (child) == OS.PtScrollbar ()) {
|
| int [] args = new int [] {
|
| OS.Pt_ARG_ORIENTATION, 0, 0,
|
| OS.Pt_ARG_WIDTH, 0, 0,
|
| OS.Pt_ARG_HEIGHT, 0, 0,
|
| OS.Pt_ARG_BASIC_FLAGS, 0, 0,
|
| };
|
| OS.PtGetResources (child, args.length / 3, args);
|
| switch (args [1]) {
|
| case OS.Pt_HORIZONTAL:
|
| SCROLLBAR_HEIGHT = args [7];
|
| SCROLLBAR_HORIZONTAL_BASIC_FLAGS = args [10];
|
| break;
|
| case OS.Pt_VERTICAL:
|
| SCROLLBAR_WIDTH = args [4];
|
| SCROLLBAR_VERTICAL_BASIC_FLAGS = args [10];
|
| break;
|
| }
|
| }
|
| child = OS.PtWidgetBrotherBehind (child);
|
| }
|
| OS.PtDestroyWidget (shellHandle);
|
| }
|
|
|
| void initializeWidgetClasses () {
|
| int [] args = {OS.Pt_SET_DRAW_F, drawProc, 0};
|
| int [] buffer = {
|
| OS.PtCreateWidgetClass (OS.PtButton (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtList (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtLabel (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtWindow (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtToggleButton (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtComboBox (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtText (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtMultiText (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtScrollbar (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtScrollContainer (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtScrollArea (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtContainer (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtProgress (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtPanelGroup (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtPane (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtTree (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtSlider (), 0, args.length / 3, args), 0, 0,
|
| OS.PtCreateWidgetClass (OS.PtSeparator (), 0, args.length / 3, args), 0, 0,
|
| };
|
| ClassesPtr = OS.malloc (buffer.length * 4);
|
| OS.memmove (ClassesPtr, buffer, buffer.length * 4);
|
| PtButton = ClassesPtr;
|
| PtList = ClassesPtr + 12;
|
| PtLabel = ClassesPtr + 24;
|
| PtWindow = ClassesPtr + 36;
|
| PtToggleButton = ClassesPtr + 48;
|
| PtComboBox = ClassesPtr + 60;
|
| PtText = ClassesPtr + 72;
|
| PtMultiText = ClassesPtr + 84;
|
| PtScrollbar = ClassesPtr + 96;
|
| PtScrollContainer = ClassesPtr + 108;
|
| PtScrollArea = ClassesPtr + 120;
|
| PtContainer = ClassesPtr + 132;
|
| PtProgress = ClassesPtr + 144;
|
| PtPanelGroup = ClassesPtr + 156;
|
| PtPane = ClassesPtr + 168;
|
| PtTree = ClassesPtr + 180;
|
| PtSlider = ClassesPtr + 192;
|
| PtSeparator = ClassesPtr + 204;
|
| }
|
|
|
| void initializeWidgetColors () {
|
| OS.PtSetParentWidget (0);
|
| int [] args = {
|
| OS.Pt_ARG_WINDOW_STATE, OS.Ph_WM_STATE_ISHIDDEN, ~0,
|
| };
|
| int shellHandle = OS.PtCreateWidget (OS.PtWindow (), 0, args.length / 3, args);
|
| args = new int [] {
|
| OS.Pt_ARG_COLOR, 0, 0,
|
| OS.Pt_ARG_FILL_COLOR, 0, 0,
|
| };
|
| OS.PtGetResources (shellHandle, args.length / 3, args);
|
| WIDGET_FOREGROUND = args [1];
|
| WIDGET_BACKGROUND = args [4];
|
|
|
| int handle = OS.PtCreateWidget (OS.PtList (), shellHandle, 0, null);
|
| args = new int [] {
|
| OS.Pt_ARG_COLOR, 0, 0,
|
| OS.Pt_ARG_FILL_COLOR, 0, 0,
|
| OS.Pt_ARG_SELECTION_FILL_COLOR, 0, 0,
|
| OS.Pt_ARG_SELECTION_TEXT_COLOR, 0, 0,
|
| };
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| LIST_FOREGROUND = args [1];
|
| LIST_BACKGROUND = args [4];
|
| LIST_SELECTION = args [7];
|
| LIST_SELECTION_TEXT = args [10];
|
|
|
| /*
|
| * Feature in Photon. The values of Pt_ARG_DARK_BEVEL_COLOR and
|
| * Pt_ARG_LIGHT_BEVEL_COLOR are not initialized until the widget
|
| * is realized. The fix is to realize the shell, but don't
|
| * display it.
|
| */
|
| handle = OS.PtCreateWidget (OS.PtButton (), shellHandle, 0, null);
|
| OS.PtRealizeWidget(shellHandle);
|
| args = new int [] {
|
| OS.Pt_ARG_OUTLINE_COLOR, 0, 0,
|
| OS.Pt_ARG_OUTLINE_COLOR, 0, 0,
|
| OS.Pt_ARG_DARK_BEVEL_COLOR, 0, 0,
|
| OS.Pt_ARG_BEVEL_COLOR, 0, 0,
|
| OS.Pt_ARG_LIGHT_BEVEL_COLOR, 0, 0,
|
| OS.Pt_ARG_BALLOON_COLOR, 0, 0,
|
| OS.Pt_ARG_BALLOON_FILL_COLOR, 0, 0,
|
| };
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| WIDGET_BORDER = args [1];
|
| WIDGET_DARK_SHADOW = args [4];
|
| WIDGET_NORMAL_SHADOW = args [7];
|
| WIDGET_LIGHT_SHADOW = args [10];
|
| WIDGET_HIGHLIGHT_SHADOW = args [13];
|
| INFO_FOREGROUND = args [16];
|
| INFO_BACKGROUND = args [19];
|
|
|
| OS.PtDestroyWidget (shellHandle);
|
| }
|
|
|
| void initializeWidgetFonts () {
|
| OS.PtSetParentWidget (0);
|
| int shellHandle = OS.PtCreateWidget (OS.PtWindow (), 0, 0, null);
|
| int listHandle = OS.PtCreateWidget (OS.PtList (), shellHandle, 0, null);
|
| int [] args = {OS.Pt_ARG_LIST_FONT, 0, 0};
|
| OS.PtGetResources (listHandle, args.length / 3, args);
|
| int count = OS.strlen (args [1]);
|
| LIST_FONT = new byte [count + 1];
|
| OS.memmove (LIST_FONT, args [1], count);
|
| int textHandle = OS.PtCreateWidget (OS.PtText (), shellHandle, 0, null);
|
| args = new int [] {OS.Pt_ARG_TEXT_FONT, 0, 0};
|
| OS.PtGetResources (textHandle, args.length / 3, args);
|
| count = OS.strlen (args [1]);
|
| TEXT_FONT = new byte [count + 1];
|
| OS.memmove (TEXT_FONT, args [1], count);
|
| OS.PtDestroyWidget (shellHandle);
|
| }
|
|
|
| int inputProc (int data, int rcvid, int message, int size) {
|
| if (embedded) {
|
| runDeferredEvents ();
|
| runAsyncMessages ();
|
| }
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| /** |
| * 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 |
| * |
| * @private |
| */ |
| public int internal_new_GC (GCData data) {
|
| if (isDisposed()) SWT.error(SWT.ERROR_DEVICE_DISPOSED);
|
| int phGC = OS.PgCreateGC(0); // NOTE: PgCreateGC ignores the parameter
|
| if (phGC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
|
|
|
| data.device = this;
|
| data.rid = OS.Ph_DEV_RID;
|
| return phGC;
|
| }
|
|
|
| /** |
| * 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 handle the platform specific GC handle |
| * @param data the platform specific GC data |
| * |
| * @private |
| */ |
| public void internal_dispose_GC (int phGC, GCData data) {
|
| OS.PgDestroyGC(phGC);
|
| }
|
|
|
| boolean isValidThread () {
|
| return thread == Thread.currentThread ();
|
| }
|
|
|
| /** |
| * 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 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> |
| * </ul> |
| * |
| * @see #setData |
| * @see #disposeExec |
| */ |
| public Object getData (String key) {
|
| checkDevice ();
|
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| 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 provide a |
| * <code>disposeExec()</code> handler which does so. |
| * </p> |
| * |
| * @return the display specific data |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - when called from the wrong thread</li> |
| * </ul> |
| * |
| * @see #setData |
| * @see #disposeExec |
| */ |
| public Object getData () {
|
| checkDevice ();
|
| return data;
|
| }
|
| static boolean isValidClass (Class clazz) {
|
| String name = clazz.getName ();
|
| int index = name.lastIndexOf ('.');
|
| return name.substring (0, index + 1).equals (PACKAGE_NAME);
|
| }
|
|
|
| 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;
|
| if (embedded) wake ();
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| * |
| * @see #sleep |
| * @see #wake |
| */ |
| public boolean readAndDispatch () {
|
| checkDevice ();
|
| idle = false;
|
| int id = OS.PtAppAddWorkProc (app_context, workProc, 0);
|
| OS.PtAppProcessEvent (app_context);
|
| OS.PtAppRemoveWorkProc (app_context, id);
|
| if (!idle) {
|
| runDeferredEvents ();
|
| return true;
|
| }
|
| return runAsyncMessages ();
|
| }
|
|
|
| synchronized void register () {
|
| for (int i=0; i<Displays.length; i++) {
|
| if (Displays [i] == null) {
|
| Displays [i] = this;
|
| return;
|
| }
|
| }
|
| Display [] newDisplays = new Display [Displays.length + 4];
|
| System.arraycopy (Displays, 0, newDisplays, 0, Displays.length);
|
| newDisplays [Displays.length] = this;
|
| Displays = newDisplays;
|
| }
|
|
|
| protected void release () {
|
| super.release ();
|
|
|
| /* Release shells */
|
| Shell [] shells = WidgetTable.shells ();
|
| for (int i=0; i<shells.length; i++) {
|
| Shell shell = shells [i];
|
| if (!shell.isDisposed ()) {
|
| if (this == shell.getDisplay ()) shell.dispose ();
|
| }
|
| }
|
| while (readAndDispatch ()) {};
|
|
|
| /* Run dispose list */
|
| if (disposeList != null) {
|
| for (int i=0; i<disposeList.length; i++) {
|
| if (disposeList [i] != null) disposeList [i].run ();
|
| }
|
| }
|
| disposeList = null;
|
|
|
| /* Release synchronizer */
|
| synchronizer.releaseSynchronizer ();
|
| synchronizer = null;
|
|
|
| releaseDisplay ();
|
| }
|
|
|
| void releaseDisplay () {
|
|
|
| OS.PtDestroyWidget (timerHandle);
|
|
|
| /* Free the classes array */
|
| OS.free (ClassesPtr);
|
|
|
| /* Free pulses and input proc */
|
| OS.PtAppRemoveInput (app_context, input);
|
| OS.PtAppDeletePulse (app_context, pulse);
|
|
|
| /* Free the timers */
|
| if (timers != null) {
|
| for (int i=0; i<timers.length; i++) {
|
| if (timers [i] != 0) OS.PtDestroyWidget (timers [i]);
|
| }
|
| }
|
| timers = null;
|
| timerList = null;
|
| timerProc = 0;
|
| timerCallback.dispose ();
|
| timerCallback = null;
|
|
|
| /* Free the window proc */
|
| windowCallback.dispose ();
|
| windowCallback = null;
|
|
|
| /* Free callbacks */
|
| drawCallback.dispose();
|
| drawCallback = null;
|
| workCallback.dispose();
|
| workCallback = null;
|
| inputCallback.dispose();
|
| inputCallback = null;
|
| hotkeyCallback.dispose();
|
| hotkeyCallback = null;
|
|
|
| /* Release references */
|
| thread = null;
|
| data = null;
|
| keys = null;
|
| values = null;
|
| }
|
|
|
| boolean runAsyncMessages () {
|
| return synchronizer.runAsyncMessages ();
|
| }
|
|
|
| boolean runDeferredEvents () {
|
| /*
|
| * Run deferred events. This code is always
|
| * called in the Display's thread so it must
|
| * be re-enterant 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.notifyListeners (event.type, event);
|
| }
|
| }
|
|
|
| /*
|
| * At this point, the event queue could
|
| * be null due to a recursive invokation
|
| * when running the event.
|
| */
|
| }
|
|
|
| /* Clear the queue */
|
| eventQueue = null;
|
| return true;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| * |
| * @see #setData |
| * @see #disposeExec |
| */ |
| public void setData (String key, Object value) {
|
| checkDevice ();
|
| if (key == null) error (SWT.ERROR_NULL_ARGUMENT);
|
|
|
| /* 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 - when called from the wrong thread</li> |
| * </ul> |
| * |
| * @see #getData |
| * @see #disposeExec |
| */ |
| public void setData (Object data) {
|
| checkDevice ();
|
| this.data = data;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| */ |
| public void setSynchronizer (Synchronizer synchronizer) {
|
| checkDevice ();
|
| if (synchronizer == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (this.synchronizer != null) {
|
| this.synchronizer.runAsyncMessages();
|
| }
|
| this.synchronizer = synchronizer;
|
| }
|
|
|
| /** |
| * 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> |
| * </ul> |
| * |
| * @see #wake |
| */ |
| public boolean sleep () {
|
| checkDevice ();
|
| OS.PtAppProcessEvent (app_context);
|
| runDeferredEvents ();
|
| return true;
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @param runnable code to run on the user-interface thread. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_FAILED_EXEC - if an exception occured when executing the runnable</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void syncExec (Runnable runnable) {
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| synchronizer.syncExec (runnable);
|
| }
|
|
|
| int textWidth (String string, byte[] font) {
|
| if (string.length () == 0) return 0;
|
| byte [] textBuffer = Converter.wcsToMbcs (null, string, false);
|
| PhRect_t rect = new PhRect_t ();
|
| OS.PfExtentText(rect, null, font, textBuffer, textBuffer.length);
|
| if (rect.lr_x == rect.ul_x) return 0;
|
| return rect.lr_x - rect.ul_x + 1;
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @param milliseconds the delay before running the runnable |
| * @param runnable code to run on the user-interface thread |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #asyncExec |
| */ |
| public void timerExec (int milliseconds, Runnable runnable) {
|
| checkDevice ();
|
| if (timerList == null) timerList = new Runnable [4];
|
| if (timers == null) timers = new int [4];
|
| int index = 0;
|
| while (index < timerList.length) {
|
| if (timerList [index] == null) break;
|
| index++;
|
| }
|
| if (index == timerList.length) {
|
| Runnable [] newTimerList = new Runnable [timerList.length + 4];
|
| System.arraycopy (timerList, 0, newTimerList, 0, timerList.length);
|
| timerList = newTimerList;
|
| int [] newTimers = new int [timers.length + 4];
|
| System.arraycopy (timers, 0, newTimers, 0, timers.length);
|
| timers = newTimers;
|
| }
|
| int [] args = {OS.Pt_ARG_TIMER_INITIAL, milliseconds, 0};
|
| int handle = OS.PtCreateWidget (OS.PtTimer (), timerHandle, args.length / 3, args);
|
| OS.PtRealizeWidget (handle);
|
| if (handle != 0) {
|
| OS.PtAddCallback (handle, OS.Pt_CB_TIMER_ACTIVATE, timerProc, index);
|
| timerList [index] = runnable;
|
| timers [index] = handle;
|
| }
|
|
|
| }
|
| int timerProc (int handle, int index, int info) {
|
| if (timerList == null) return 0;
|
| if (0 <= index && index < timerList.length) {
|
| Runnable runnable = timerList [index];
|
| timerList [index] = null;
|
| OS.PtDestroyWidget (timers [index]);
|
| timers [index] = 0;
|
| if (runnable != null) runnable.run ();
|
| }
|
| return 0;
|
| }
|
|
|
| static int translateKey (int key) {
|
| for (int i=0; i<KeyTable.length; i++) {
|
| if (KeyTable [i] [0] == key) return KeyTable [i] [1];
|
| }
|
| return 0;
|
| }
|
|
|
| static int untranslateKey (int key) {
|
| for (int i=0; i<KeyTable.length; i++) {
|
| if (KeyTable [i] [1] == key) return KeyTable [i] [0];
|
| }
|
| return 0;
|
| }
|
|
|
| public void update() {
|
| checkDevice ();
|
| Shell[] shells = WidgetTable.shells ();
|
| for (int i=0; i<shells.length; i++) {
|
| Shell shell = shells [i];
|
| if (!shell.isDisposed () && this == shell.getDisplay ()) {
|
| shell.update ();
|
| }
|
| }
|
| }
|
|
|
| /** |
| * 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. |
| * |
| * @see #sleep |
| */ |
| public void wake () {
|
| if (isDisposed ()) error (SWT.ERROR_DEVICE_DISPOSED);
|
| // int flags = OS.PtEnter (0);
|
| OS.PtAppPulseTrigger (app_context, pulse);
|
| // if (flags >= 0) OS.PtLeave (flags);
|
| }
|
|
|
| int windowProc (int handle, int data, int info) {
|
| Widget widget = WidgetTable.get (handle);
|
| if (widget == null) return OS.Pt_CONTINUE;
|
| return widget.processEvent (handle, data, info);
|
| }
|
|
|
| int workProc (int data) {
|
| idle = true;
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| String wrapText (String text, byte[] font, int width) {
|
| text = convertToLf (text);
|
| int length = text.length ();
|
| if (width <= 0 || length == 0 || length == 1) return text;
|
| StringBuffer result = new StringBuffer ();
|
| int lineStart = 0, lineEnd = 0;
|
| while (lineStart < length) {
|
| lineEnd = text.indexOf ('\n', lineStart);
|
| boolean noLf = lineEnd == -1;
|
| if (noLf) lineEnd = length;
|
| int nextStart = lineEnd + 1;
|
| while (lineEnd > lineStart + 1 && Compatibility.isWhitespace (text.charAt (lineEnd - 1))) {
|
| lineEnd--;
|
| }
|
| int wordStart = lineStart, wordEnd = lineStart;
|
| int i = lineStart;
|
| while (i < lineEnd) {
|
| int lastStart = wordStart, lastEnd = wordEnd;
|
| wordStart = i;
|
| while (i < lineEnd && !Compatibility.isWhitespace (text.charAt (i))) {
|
| i++;
|
| }
|
| wordEnd = i - 1;
|
| String line = text.substring (lineStart, wordEnd + 1);
|
| int lineWidth = textWidth (line, font);
|
| while (i < lineEnd && Compatibility.isWhitespace (text.charAt (i))) {
|
| i++;
|
| }
|
| if (lineWidth > width) {
|
| if (lastStart == wordStart) {
|
| while (wordStart < wordEnd) {
|
| line = text.substring (lineStart, wordStart + 1);
|
| lineWidth = textWidth (line, font);
|
| if (lineWidth >= width) break;
|
| wordStart++;
|
| }
|
| if (wordStart == lastStart) wordStart++;
|
| lastEnd = wordStart - 1;
|
| }
|
| line = text.substring (lineStart, lastEnd + 1);
|
| result.append (line); result.append ('\n');
|
| i = wordStart; lineStart = wordStart; wordEnd = wordStart;
|
| }
|
| }
|
| if (lineStart < lineEnd) {
|
| result.append (text.substring (lineStart, lineEnd));
|
| }
|
| if (!noLf) {
|
| result.append ('\n');
|
| }
|
| lineStart = nextStart;
|
| }
|
| return result.toString ();
|
| }
|
|
|
| }
|