| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.*; |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class are selectable user interface |
| * objects that allow the user to enter and modify numeric |
| * values. |
| * <p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>READ_ONLY, WRAP</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, Modify</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @since 3.1 |
| */ |
| public class Spinner extends Composite { |
| int hwndText, hwndUpDown; |
| boolean ignoreModify; |
| int pageIncrement, digits; |
| static final int EditProc; |
| static final TCHAR EditClass = new TCHAR (0, "EDIT", true); |
| static final int UpDownProc; |
| static final TCHAR UpDownClass = new TCHAR (0, OS.UPDOWN_CLASS, true); |
| static { |
| WNDCLASS lpWndClass = new WNDCLASS (); |
| OS.GetClassInfo (0, EditClass, lpWndClass); |
| EditProc = lpWndClass.lpfnWndProc; |
| OS.GetClassInfo (0, UpDownClass, lpWndClass); |
| UpDownProc = lpWndClass.lpfnWndProc; |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @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 SWT#READ_ONLY |
| * @see SWT#WRAP |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Spinner (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| int callWindowProc (int hwnd, int msg, int wParam, int lParam) { |
| if (handle == 0) return 0; |
| if (hwnd == hwndText) { |
| return OS.CallWindowProc (EditProc, hwnd, msg, wParam, lParam); |
| } |
| if (hwnd == hwndUpDown) { |
| return OS.CallWindowProc (UpDownProc, hwnd, msg, wParam, lParam); |
| } |
| return OS.DefWindowProc (handle, msg, wParam, lParam); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Even though it is legal to create this widget |
| * with scroll bars, they serve no useful purpose |
| * because they do not automatically scroll the |
| * widget's client area. The fix is to clear |
| * the SWT style. |
| */ |
| return style & ~(SWT.H_SCROLL | SWT.V_SCROLL); |
| } |
| |
| boolean checkHandle (int hwnd) { |
| return hwnd == handle || hwnd == hwndText || hwnd == hwndUpDown; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void createHandle () { |
| super.createHandle (); |
| state &= ~(CANVAS | TRANSPARENT); |
| int hInstance = OS.GetModuleHandle (null); |
| int textExStyle = (style & SWT.BORDER) != 0 ? OS.WS_EX_CLIENTEDGE : 0; |
| int textStyle = OS.WS_CHILD | OS.WS_VISIBLE | OS.ES_AUTOHSCROLL | OS.WS_CLIPSIBLINGS; |
| if ((style & SWT.READ_ONLY) != 0) textStyle |= OS.ES_READONLY; |
| if (OS.WIN32_VERSION >= OS.VERSION (4, 10)) { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) textExStyle |= OS.WS_EX_LAYOUTRTL; |
| } |
| hwndText = OS.CreateWindowEx ( |
| textExStyle, |
| EditClass, |
| null, |
| textStyle, |
| 0, 0, 0, 0, |
| handle, |
| 0, |
| hInstance, |
| null); |
| if (hwndText == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.SetWindowLong (hwndText, OS.GWL_ID, hwndText); |
| int upDownStyle = OS.WS_CHILD | OS.WS_VISIBLE | OS.UDS_AUTOBUDDY; |
| if ((style & SWT.WRAP) != 0) upDownStyle |= OS.UDS_WRAP; |
| if ((style & SWT.BORDER) != 0) { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) { |
| upDownStyle |= OS.UDS_ALIGNLEFT; |
| } else { |
| upDownStyle |= OS.UDS_ALIGNRIGHT; |
| } |
| } |
| hwndUpDown = OS.CreateWindowEx ( |
| 0, |
| UpDownClass, |
| null, |
| upDownStyle, |
| 0, 0, 0, 0, |
| handle, |
| 0, |
| hInstance, |
| null); |
| if (hwndUpDown == 0) error (SWT.ERROR_NO_HANDLES); |
| int flags = OS.SWP_NOSIZE | OS.SWP_NOMOVE | OS.SWP_NOACTIVATE; |
| SetWindowPos (hwndText, hwndUpDown, 0, 0, 0, 0, flags); |
| OS.SetWindowLong (hwndUpDown, OS.GWL_ID, hwndUpDown); |
| if (OS.IsDBLocale) { |
| int hIMC = OS.ImmGetContext (handle); |
| OS.ImmAssociateContext (hwndText, hIMC); |
| OS.ImmAssociateContext (hwndUpDown, hIMC); |
| OS.ImmReleaseContext (handle, hIMC); |
| } |
| OS.SendMessage (hwndUpDown, OS.UDM_SETRANGE32, 0, 100); |
| OS.SendMessage (hwndUpDown, OS.IsWinCE ? OS.UDM_SETPOS : OS.UDM_SETPOS32, 0, 0); |
| pageIncrement = 10; |
| digits = 0; |
| TCHAR buffer = new TCHAR (getCodePage (), "0", true); |
| OS.SetWindowText (hwndText, buffer); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is modified, by sending |
| * it one of the messages defined in the <code>ModifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ModifyListener |
| * @see #removeModifyListener |
| */ |
| public void addModifyListener (ModifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Modify, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is not called for texts. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Selection,typedListener); |
| addListener (SWT.DefaultSelection,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is verified, by sending |
| * it one of the messages defined in the <code>VerifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see VerifyListener |
| * @see #removeVerifyListener |
| */ |
| void addVerifyListener (VerifyListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Verify, typedListener); |
| } |
| |
| int borderHandle () { |
| return hwndText; |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| int width = 0, height = 0; |
| if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) { |
| int newFont, oldFont = 0; |
| int hDC = OS.GetDC (hwndText); |
| newFont = OS.SendMessage (hwndText, OS.WM_GETFONT, 0, 0); |
| if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); |
| TEXTMETRIC tm = OS.IsUnicode ? (TEXTMETRIC) new TEXTMETRICW () : new TEXTMETRICA (); |
| OS.GetTextMetrics (hDC, tm); |
| height = tm.tmHeight; |
| RECT rect = new RECT (); |
| int [] max = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); |
| String string = String.valueOf (max [0]); |
| if (digits > 0) { |
| StringBuffer buffer = new StringBuffer (); |
| buffer.append (string); |
| buffer.append (getDecimalSeparator ()); |
| int count = digits - string.length (); |
| while (count >= 0) { |
| buffer.append ("0"); |
| count--; |
| } |
| string = buffer.toString (); |
| } |
| TCHAR buffer = new TCHAR (getCodePage (), string, false); |
| int flags = OS.DT_CALCRECT | OS.DT_EDITCONTROL | OS.DT_NOPREFIX; |
| OS.DrawText (hDC, buffer, buffer.length (), rect, flags); |
| width = rect.right - rect.left; |
| if (newFont != 0) OS.SelectObject (hDC, oldFont); |
| OS.ReleaseDC (hwndText, hDC); |
| } |
| if (width == 0) width = DEFAULT_WIDTH; |
| if (height == 0) height = DEFAULT_HEIGHT; |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| Rectangle trim = computeTrim (0, 0, width, height); |
| if (hHint == SWT.DEFAULT) { |
| int upDownHeight = OS.GetSystemMetrics (OS.SM_CYVSCROLL) + 2 * getBorderWidth (); |
| trim.height = Math.max (trim.height, upDownHeight); |
| } |
| return new Point (trim.width, trim.height); |
| } |
| |
| public Rectangle computeTrim (int x, int y, int width, int height) { |
| checkWidget (); |
| |
| /* Get the trim of the text control */ |
| RECT rect = new RECT (); |
| OS.SetRect (rect, x, y, x + width, y + height); |
| int bits0 = OS.GetWindowLong (hwndText, OS.GWL_STYLE); |
| int bits1 = OS.GetWindowLong (hwndText, OS.GWL_EXSTYLE); |
| OS.AdjustWindowRectEx (rect, bits0, false, bits1); |
| width = rect.right - rect.left; |
| height = rect.bottom - rect.top; |
| |
| /* |
| * The preferred height of a single-line text widget |
| * has been hand-crafted to be the same height as |
| * the single-line text widget in an editable combo |
| * box. |
| */ |
| int margins = OS.SendMessage (hwndText, OS.EM_GETMARGINS, 0, 0); |
| x -= margins & 0xFFFF; |
| width += (margins & 0xFFFF) + ((margins >> 16) & 0xFFFF); |
| if ((style & SWT.BORDER) != 0) { |
| x -= 1; |
| y -= 1; |
| width += 2; |
| height += 2; |
| } |
| width += OS.GetSystemMetrics (OS.SM_CXVSCROLL); |
| return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * Copies the selected text. |
| * <p> |
| * The current selection is copied to the clipboard. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void copy () { |
| checkWidget (); |
| OS.SendMessage (hwndText, OS.WM_COPY, 0, 0); |
| } |
| |
| /** |
| * Cuts the selected text. |
| * <p> |
| * The current selection is first copied to the |
| * clipboard and then deleted from the widget. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void cut () { |
| checkWidget (); |
| if ((style & SWT.READ_ONLY) != 0) return; |
| OS.SendMessage (hwndText, OS.WM_CUT, 0, 0); |
| } |
| |
| int defaultBackground () { |
| return OS.GetSysColor (OS.COLOR_WINDOW); |
| } |
| |
| void enableWidget (boolean enabled) { |
| super.enableWidget (enabled); |
| OS.EnableWindow (hwndText, enabled); |
| OS.EnableWindow (hwndUpDown, enabled); |
| } |
| |
| void deregister () { |
| super.deregister (); |
| display.removeControl (hwndText); |
| display.removeControl (hwndUpDown); |
| } |
| |
| boolean hasFocus () { |
| int hwndFocus = OS.GetFocus (); |
| if (hwndFocus == handle) return true; |
| if (hwndFocus == hwndText) return true; |
| if (hwndFocus == hwndUpDown) return true; |
| return false; |
| } |
| |
| /** |
| * Returns the number of decimal places used by the receiver. |
| * |
| * @return the digits |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getDigits () { |
| checkWidget (); |
| return digits; |
| } |
| |
| String getDecimalSeparator () { |
| TCHAR tchar = new TCHAR (getCodePage (), 4); |
| int size = OS.GetLocaleInfo (OS.LOCALE_USER_DEFAULT, OS.LOCALE_SDECIMAL, tchar, 4); |
| return size != 0 ? tchar.toString (0, size - 1) : "."; |
| } |
| |
| /** |
| * Returns the amount that the receiver's value will be |
| * modified by when the up/down arrows are pressed. |
| * |
| * @return the increment |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getIncrement () { |
| checkWidget (); |
| UDACCEL udaccel = new UDACCEL (); |
| OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 1, udaccel); |
| return udaccel.nInc; |
| } |
| |
| /** |
| * Returns the maximum value which the receiver will allow. |
| * |
| * @return the maximum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getMaximum () { |
| checkWidget (); |
| int [] max = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); |
| return max [0]; |
| } |
| |
| /** |
| * Returns the minimum value which the receiver will allow. |
| * |
| * @return the minimum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getMinimum () { |
| checkWidget (); |
| int [] min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, null); |
| return min [0]; |
| } |
| |
| /** |
| * Returns the amount that the receiver's position will be |
| * modified by when the page up/down keys are pressed. |
| * |
| * @return the page increment |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getPageIncrement () { |
| checkWidget (); |
| return pageIncrement; |
| } |
| |
| /** |
| * Returns the <em>selection</em>, which is the receiver's position. |
| * |
| * @return the selection |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getSelection () { |
| checkWidget (); |
| if (OS.IsWinCE) { |
| return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| } |
| |
| int getSelectionText () { |
| int length = OS.GetWindowTextLength (hwndText); |
| TCHAR buffer = new TCHAR (getCodePage (), length + 1); |
| OS.GetWindowText (hwndText, buffer, length + 1); |
| String string = buffer.toString (0, length); |
| try { |
| int value; |
| if (digits > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| int index = string.indexOf (decimalSeparator); |
| if (index != -1) { |
| String wholePart = string.substring (0, index); |
| String decimalPart = string.substring (index + 1); |
| if (decimalPart.length () > digits) { |
| decimalPart = decimalPart.substring (0, digits); |
| } else { |
| int i = digits - decimalPart.length (); |
| for (int j = 0; j < i; j++) { |
| decimalPart = decimalPart + "0"; |
| } |
| } |
| int wholeValue = Integer.parseInt (wholePart); |
| int decimalValue = Integer.parseInt (decimalPart); |
| for (int i = 0; i < digits; i++) wholeValue *= 10; |
| value = wholeValue + decimalValue; |
| } else { |
| value = Integer.parseInt (string); |
| } |
| } else { |
| value = Integer.parseInt (string); |
| } |
| int [] max = new int [1], min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); |
| if (min [0] <= value && value <= max [0]) return value; |
| } catch (NumberFormatException e) { |
| } |
| if (OS.IsWinCE) { |
| return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| return OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| } |
| |
| int mbcsToWcsPos (int mbcsPos) { |
| if (mbcsPos <= 0) return 0; |
| if (OS.IsUnicode) return mbcsPos; |
| int mbcsSize = OS.GetWindowTextLengthA (hwndText); |
| if (mbcsSize == 0) return 0; |
| if (mbcsPos >= mbcsSize) return mbcsSize; |
| byte [] buffer = new byte [mbcsSize + 1]; |
| OS.GetWindowTextA (hwndText, buffer, mbcsSize + 1); |
| return OS.MultiByteToWideChar (getCodePage (), OS.MB_PRECOMPOSED, buffer, mbcsPos, null, 0); |
| } |
| |
| /** |
| * Pastes text from clipboard. |
| * <p> |
| * The selected text is deleted from the widget |
| * and new text inserted from the clipboard. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void paste () { |
| checkWidget (); |
| if ((style & SWT.READ_ONLY) != 0) return; |
| OS.SendMessage (hwndText, OS.WM_PASTE, 0, 0); |
| } |
| |
| void register () { |
| super.register (); |
| display.addControl (hwndText, this); |
| display.addControl (hwndUpDown, this); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| hwndText = hwndUpDown = 0; |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver's text is modified. |
| * |
| * @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_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ModifyListener |
| * @see #addModifyListener |
| */ |
| public void removeModifyListener (ModifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Modify, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected. |
| * |
| * @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_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener(SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection,listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is verified. |
| * |
| * @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_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see VerifyListener |
| * @see #addVerifyListener |
| */ |
| void removeVerifyListener (VerifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Verify, listener); |
| } |
| |
| boolean sendKeyEvent (int type, int msg, int wParam, int lParam, Event event) { |
| if (!super.sendKeyEvent (type, msg, wParam, lParam, event)) { |
| return false; |
| } |
| if ((style & SWT.READ_ONLY) != 0) return true; |
| if (type != SWT.KeyDown) return true; |
| if (msg != OS.WM_CHAR && msg != OS.WM_KEYDOWN && msg != OS.WM_IME_CHAR) { |
| return true; |
| } |
| if (event.character == 0) return true; |
| // if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return true; |
| char key = event.character; |
| int stateMask = event.stateMask; |
| |
| /* |
| * Disable all magic keys that could modify the text |
| * and don't send events when Alt, Shift or Ctrl is |
| * pressed. |
| */ |
| switch (msg) { |
| case OS.WM_CHAR: |
| if (key != 0x08 && key != 0x7F && key != '\r' && key != '\t' && key != '\n') break; |
| // FALL THROUGH |
| case OS.WM_KEYDOWN: |
| if ((stateMask & (SWT.ALT | SWT.SHIFT | SWT.CONTROL)) != 0) return false; |
| break; |
| } |
| |
| /* |
| * If the left button is down, the text widget refuses the character. |
| */ |
| if (OS.GetKeyState (OS.VK_LBUTTON) < 0) { |
| return true; |
| } |
| |
| /* Verify the character */ |
| String oldText = ""; |
| int [] start = new int [1], end = new int [1]; |
| OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); |
| switch (key) { |
| case 0x08: /* Bs */ |
| if (start [0] == end [0]) { |
| if (start [0] == 0) return true; |
| start [0] = start [0] - 1; |
| if (!OS.IsUnicode && OS.IsDBLocale) { |
| int [] newStart = new int [1], newEnd = new int [1]; |
| OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); |
| OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); |
| if (start [0] != newStart [0]) start [0] = start [0] - 1; |
| } |
| start [0] = Math.max (start [0], 0); |
| } |
| break; |
| case 0x7F: /* Del */ |
| if (start [0] == end [0]) { |
| int length = OS.GetWindowTextLength (hwndText); |
| if (start [0] == length) return true; |
| end [0] = end [0] + 1; |
| if (!OS.IsUnicode && OS.IsDBLocale) { |
| int [] newStart = new int [1], newEnd = new int [1]; |
| OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); |
| OS.SendMessage (hwndText, OS.EM_GETSEL, newStart, newEnd); |
| if (end [0] != newEnd [0]) end [0] = end [0] + 1; |
| } |
| end [0] = Math.min (end [0], length); |
| } |
| break; |
| case '\r': /* Return */ |
| return true; |
| default: /* Tab and other characters */ |
| if (key != '\t' && key < 0x20) return true; |
| oldText = new String (new char [] {key}); |
| break; |
| } |
| String newText = verifyText (oldText, start [0], end [0], event); |
| if (newText == null) return false; |
| if (newText == oldText) return true; |
| TCHAR buffer = new TCHAR (getCodePage (), newText, true); |
| OS.SendMessage (hwndText, OS.EM_SETSEL, start [0], end [0]); |
| OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); |
| return false; |
| } |
| |
| void setBackgroundPixel (int pixel) { |
| if (background == pixel) return; |
| super.setBackgroundPixel (pixel); |
| OS.InvalidateRect (hwndText, null, true); |
| } |
| |
| /** |
| * Sets the number of decimal places used by the receiver. |
| * <p> |
| * The digit setting is used to allow for floating point values in the receiver. |
| * For example, to set the selection to a floating point value of 1.37 call setDigits() with |
| * a value of 2 and setSelection() with a value of 137. Similarly, if getDigits() has a value |
| * of 2 and getSelection() returns 137 this should be interpreted as 1.37. This applies to all |
| * numeric APIs. |
| * |
| * @param value the new digits (must be greater than or equal to zero) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the value is less than zero</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setDigits (int value) { |
| checkWidget (); |
| if (value < 0) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (value == this.digits) return; |
| this.digits = value; |
| int pos; |
| if (OS.IsWinCE) { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| setSelection (pos, false, true, false); |
| } |
| |
| void setForegroundPixel (int pixel) { |
| if (foreground == pixel) return; |
| super.setForegroundPixel (pixel); |
| OS.InvalidateRect (hwndText, null, true); |
| } |
| |
| /** |
| * Sets the amount that the receiver's value will be |
| * modified by when the up/down arrows are pressed to |
| * the argument, which must be at least one. |
| * |
| * @param value the new increment (must be greater than zero) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setIncrement (int value) { |
| checkWidget (); |
| if (value < 1) return; |
| int hHeap = OS.GetProcessHeap (); |
| int count = OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 0, (UDACCEL)null); |
| int udaccels = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, UDACCEL.sizeof * count); |
| OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, count, udaccels); |
| int first = -1; |
| UDACCEL udaccel = new UDACCEL (); |
| for (int i = 0; i < count; i++) { |
| int offset = udaccels + (i * UDACCEL.sizeof); |
| OS.MoveMemory (udaccel, offset, UDACCEL.sizeof); |
| if (first == -1) first = udaccel.nInc; |
| udaccel.nInc = udaccel.nInc * value / first; |
| OS.MoveMemory (offset, udaccel, UDACCEL.sizeof); |
| } |
| OS.SendMessage (hwndUpDown, OS.UDM_SETACCEL, count, udaccels); |
| OS.HeapFree (hHeap, 0, udaccels); |
| } |
| |
| /** |
| * Sets the maximum value that the receiver will allow. This new |
| * value will be ignored if it is not greater than the receiver's current |
| * minimum value. If the new maximum is applied then the receiver's |
| * selection value will be adjusted if necessary to fall within its new range. |
| * |
| * @param value the new maximum, which must be greater than the current minimum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMaximum (int value) { |
| checkWidget (); |
| if (value < 0) return; |
| int [] min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, null); |
| if (value <= min [0]) return; |
| int pos; |
| if (OS.IsWinCE) { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| OS.SendMessage (hwndUpDown , OS.UDM_SETRANGE32, min [0], value); |
| if (pos > value) setSelection (value, true, true, false); |
| } |
| |
| /** |
| * Sets the minimum value that the receiver will allow. This new |
| * value will be ignored if it is negative or is not less than the receiver's |
| * current maximum value. If the new minimum is applied then the receiver's |
| * selection value will be adjusted if necessary to fall within its new range. |
| * |
| * @param value the new minimum, which must be nonnegative and less than the current maximum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMinimum (int value) { |
| checkWidget (); |
| if (value < 0) return; |
| int [] max = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, null, max); |
| if (value >= max [0]) return; |
| int pos; |
| if (OS.IsWinCE) { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| OS.SendMessage (hwndUpDown , OS.UDM_SETRANGE32, value, max [0]); |
| if (pos < value) setSelection (value, true, true, false); |
| } |
| |
| /** |
| * Sets the amount that the receiver's position will be |
| * modified by when the page up/down keys are pressed |
| * to the argument, which must be at least one. |
| * |
| * @param value the page increment (must be greater than zero) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setPageIncrement (int value) { |
| checkWidget (); |
| if (value < 1) return; |
| pageIncrement = value; |
| } |
| |
| /** |
| * Sets the <em>selection</em>, which is the receiver's |
| * position, to the argument. If the argument is not within |
| * the range specified by minimum and maximum, it will be |
| * adjusted to fall within this range. |
| * |
| * @param value the new selection (must be zero or greater) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSelection (int value) { |
| checkWidget (); |
| int [] max = new int [1], min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); |
| value = Math.min (Math.max (min [0], value), max [0]); |
| setSelection (value, true, true, false); |
| } |
| |
| void setSelection (int value, boolean setPos, boolean setText, boolean notify) { |
| if (setPos) { |
| OS.SendMessage (hwndUpDown , OS.IsWinCE ? OS.UDM_SETPOS : OS.UDM_SETPOS32, 0, value); |
| } |
| if (setText) { |
| String string = String.valueOf (value); |
| if (digits > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| int index = string.length () - digits; |
| StringBuffer buffer = new StringBuffer (); |
| if (index > 0) { |
| buffer.append (string.substring (0, index)); |
| buffer.append (decimalSeparator); |
| buffer.append (string.substring (index)); |
| } else { |
| buffer.append ("0"); |
| buffer.append (decimalSeparator); |
| while (index++ < 0) buffer.append ("0"); |
| buffer.append (string); |
| } |
| string = buffer.toString (); |
| } |
| if (hooks (SWT.Verify) || filters (SWT.Verify)) { |
| int length = OS.GetWindowTextLength (hwndText); |
| string = verifyText (string, 0, length, null); |
| if (string == null) return; |
| } |
| TCHAR buffer = new TCHAR (getCodePage (), string, true); |
| OS.SetWindowText (hwndText, buffer); |
| } |
| if (notify) postEvent (SWT.Selection); |
| } |
| |
| void setToolTipText (Shell shell, String string) { |
| shell.setToolTipText (hwndText, string); |
| shell.setToolTipText (hwndUpDown, string); |
| } |
| |
| void subclass () { |
| super.subclass (); |
| int newProc = display.windowProc; |
| OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, newProc); |
| OS.SetWindowLong (hwndUpDown, OS.GWL_WNDPROC, newProc); |
| } |
| |
| void unsubclass () { |
| super.unsubclass (); |
| OS.SetWindowLong (hwndText, OS.GWL_WNDPROC, EditProc); |
| OS.SetWindowLong (hwndUpDown, OS.GWL_WNDPROC, UpDownProc); |
| } |
| |
| String verifyText (String string, int start, int end, Event keyEvent) { |
| Event event = new Event (); |
| event.text = string; |
| event.start = start; |
| event.end = end; |
| if (keyEvent != null) { |
| event.character = keyEvent.character; |
| event.keyCode = keyEvent.keyCode; |
| event.stateMask = keyEvent.stateMask; |
| } |
| int index = 0; |
| if (digits > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| index = string.indexOf (decimalSeparator); |
| if (index != -1) { |
| string = string.substring (0, index) + string.substring (index + 1); |
| } |
| index = 0; |
| } |
| while (index < string.length ()) { |
| if (!Character.isDigit (string.charAt (index))) break; |
| index++; |
| } |
| event.doit = index == string.length (); |
| if (!OS.IsUnicode && OS.IsDBLocale) { |
| event.start = mbcsToWcsPos (start); |
| event.end = mbcsToWcsPos (end); |
| } |
| sendEvent (SWT.Verify, event); |
| if (!event.doit || isDisposed ()) return null; |
| return event.text; |
| } |
| |
| int widgetExtStyle () { |
| return super.widgetExtStyle () & ~OS.WS_EX_CLIENTEDGE; |
| } |
| |
| int windowProc (int hwnd, int msg, int wParam, int lParam) { |
| if (hwnd == hwndText || hwnd == hwndUpDown) { |
| LRESULT result = null; |
| switch (msg) { |
| /* Keyboard messages */ |
| case OS.WM_CHAR: result = wmChar (hwnd, wParam, lParam); break; |
| case OS.WM_IME_CHAR: result = wmIMEChar (hwnd, wParam, lParam); break; |
| case OS.WM_KEYDOWN: result = wmKeyDown (hwnd, wParam, lParam); break; |
| case OS.WM_KEYUP: result = wmKeyUp (hwnd, wParam, lParam); break; |
| case OS.WM_SYSCHAR: result = wmSysChar (hwnd, wParam, lParam); break; |
| case OS.WM_SYSKEYDOWN: result = wmSysKeyDown (hwnd, wParam, lParam); break; |
| case OS.WM_SYSKEYUP: result = wmSysKeyUp (hwnd, wParam, lParam); break; |
| |
| /* Mouse Messages */ |
| case OS.WM_CAPTURECHANGED: result = wmCaptureChanged (hwnd, wParam, lParam); break; |
| case OS.WM_LBUTTONDBLCLK: result = wmLButtonDblClk (hwnd, wParam, lParam); break; |
| case OS.WM_LBUTTONDOWN: result = wmLButtonDown (hwnd, wParam, lParam); break; |
| case OS.WM_LBUTTONUP: result = wmLButtonUp (hwnd, wParam, lParam); break; |
| case OS.WM_MBUTTONDBLCLK: result = wmMButtonDblClk (hwnd, wParam, lParam); break; |
| case OS.WM_MBUTTONDOWN: result = wmMButtonDown (hwnd, wParam, lParam); break; |
| case OS.WM_MBUTTONUP: result = wmMButtonUp (hwnd, wParam, lParam); break; |
| case OS.WM_MOUSEHOVER: result = wmMouseHover (hwnd, wParam, lParam); break; |
| case OS.WM_MOUSELEAVE: result = wmMouseLeave (hwnd, wParam, lParam); break; |
| case OS.WM_MOUSEMOVE: result = wmMouseMove (hwnd, wParam, lParam); break; |
| // case OS.WM_MOUSEWHEEL: result = wmMouseWheel (hwnd, wParam, lParam); break; |
| case OS.WM_RBUTTONDBLCLK: result = wmRButtonDblClk (hwnd, wParam, lParam); break; |
| case OS.WM_RBUTTONDOWN: result = wmRButtonDown (hwnd, wParam, lParam); break; |
| case OS.WM_RBUTTONUP: result = wmRButtonUp (hwnd, wParam, lParam); break; |
| case OS.WM_XBUTTONDBLCLK: result = wmXButtonDblClk (hwnd, wParam, lParam); break; |
| case OS.WM_XBUTTONDOWN: result = wmXButtonDown (hwnd, wParam, lParam); break; |
| case OS.WM_XBUTTONUP: result = wmXButtonUp (hwnd, wParam, lParam); break; |
| |
| /* Focus Messages */ |
| case OS.WM_SETFOCUS: result = wmSetFocus (hwnd, wParam, lParam); break; |
| case OS.WM_KILLFOCUS: result = wmKillFocus (hwnd, wParam, lParam); break; |
| |
| /* Paint messages */ |
| case OS.WM_PAINT: result = wmPaint (hwnd, wParam, lParam); break; |
| |
| /* Menu messages */ |
| case OS.WM_CONTEXTMENU: result = wmContextMenu (hwnd, wParam, lParam); break; |
| |
| /* Clipboard messages */ |
| case OS.WM_CLEAR: |
| case OS.WM_CUT: |
| case OS.WM_PASTE: |
| case OS.WM_UNDO: |
| case OS.EM_UNDO: |
| if (hwnd == hwndText) { |
| result = wmClipboard (hwnd, msg, wParam, lParam); |
| } |
| break; |
| } |
| if (result != null) return result.value; |
| return callWindowProc (hwnd, msg, wParam, lParam); |
| } |
| return super.windowProc (hwnd, msg, wParam, lParam); |
| } |
| |
| LRESULT WM_ERASEBKGND (int wParam, int lParam) { |
| super.WM_ERASEBKGND (wParam, lParam); |
| drawBackground (wParam); |
| return LRESULT.ONE; |
| } |
| |
| LRESULT WM_KILLFOCUS (int wParam, int lParam) { |
| return null; |
| } |
| |
| LRESULT WM_SETFOCUS (int wParam, int lParam) { |
| OS.SetFocus (hwndText); |
| return null; |
| } |
| |
| LRESULT WM_SETFONT (int wParam, int lParam) { |
| LRESULT result = super.WM_SETFONT (wParam, lParam); |
| if (result != null) return result; |
| OS.SendMessage (hwndText, OS.WM_SETFONT, wParam, lParam); |
| return result; |
| } |
| |
| LRESULT WM_SIZE (int wParam, int lParam) { |
| LRESULT result = super.WM_SIZE (wParam, lParam); |
| if (isDisposed ()) return result; |
| int width = lParam & 0xFFFF, height = lParam >> 16; |
| int upDownWidth = OS.GetSystemMetrics (OS.SM_CXVSCROLL); |
| int textWidth = width - upDownWidth; |
| int border = OS.GetSystemMetrics (OS.SM_CXEDGE); |
| int flags = OS.SWP_NOZORDER | OS.SWP_DRAWFRAME | OS.SWP_NOACTIVATE; |
| SetWindowPos (hwndText, 0, 0, 0, textWidth + border, height, flags); |
| SetWindowPos (hwndUpDown, 0, textWidth, 0, upDownWidth, height, flags); |
| return result; |
| } |
| |
| LRESULT wmChar (int hwnd, int wParam, int lParam) { |
| LRESULT result = super.wmChar (hwnd, wParam, lParam); |
| if (result != null) return result; |
| /* |
| * Feature in Windows. For some reason, when the |
| * widget is a single line text widget, when the |
| * user presses tab, return or escape, Windows beeps. |
| * The fix is to look for these keys and not call |
| * the window proc. |
| */ |
| switch (wParam) { |
| case SWT.CR: |
| postEvent (SWT.DefaultSelection); |
| // FALL THROUGH |
| case SWT.TAB: |
| case SWT.ESC: return LRESULT.ZERO; |
| } |
| return result; |
| } |
| |
| LRESULT wmClipboard (int hwndText, int msg, int wParam, int lParam) { |
| if ((style & SWT.READ_ONLY) != 0) return null; |
| // if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return null; |
| boolean call = false; |
| int [] start = new int [1], end = new int [1]; |
| String oldText = null, newText = null; |
| switch (msg) { |
| case OS.WM_CLEAR: |
| case OS.WM_CUT: |
| OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); |
| if (start [0] != end [0]) { |
| newText = ""; |
| call = true; |
| } |
| break; |
| case OS.WM_PASTE: |
| OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); |
| newText = getClipboardText (); |
| break; |
| case OS.EM_UNDO: |
| case OS.WM_UNDO: |
| if (OS.SendMessage (hwndText, OS.EM_CANUNDO, 0, 0) != 0) { |
| ignoreModify = true; |
| OS.SendMessage (hwndText, OS.EM_GETSEL, start, end); |
| OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); |
| int length = OS.GetWindowTextLength (hwndText); |
| if (length != 0 && start [0] != end [0]) { |
| TCHAR buffer = new TCHAR (getCodePage (), length + 1); |
| OS.GetWindowText (hwndText, buffer, length + 1); |
| newText = buffer.toString (start [0], end [0] - start [0]); |
| } else { |
| newText = ""; |
| } |
| OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); |
| ignoreModify = false; |
| } |
| break; |
| } |
| if (newText != null && !newText.equals (oldText)) { |
| oldText = newText; |
| newText = verifyText (newText, start [0], end [0], null); |
| if (newText == null) return LRESULT.ZERO; |
| if (!newText.equals (oldText)) { |
| if (call) { |
| OS.CallWindowProc (EditProc, hwndText, msg, wParam, lParam); |
| } |
| TCHAR buffer = new TCHAR (getCodePage (), newText, true); |
| if (msg == OS.WM_SETTEXT) { |
| int hHeap = OS.GetProcessHeap (); |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| int pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); |
| OS.MoveMemory (pszText, buffer, byteCount); |
| int code = OS.CallWindowProc (EditProc, hwndText, msg, wParam, pszText); |
| OS.HeapFree (hHeap, 0, pszText); |
| return new LRESULT (code); |
| } else { |
| OS.SendMessage (hwndText, OS.EM_REPLACESEL, 0, buffer); |
| return LRESULT.ZERO; |
| } |
| } |
| } |
| return null; |
| } |
| |
| LRESULT wmCommandChild (int wParam, int lParam) { |
| int code = wParam >> 16; |
| switch (code) { |
| case OS.EN_CHANGE: |
| if (ignoreModify) break; |
| int value = getSelectionText (); |
| int pos; |
| if (OS.IsWinCE) { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS, 0, 0) & 0xFFFF; |
| } else { |
| pos = OS.SendMessage (hwndUpDown, OS.UDM_GETPOS32, 0, 0); |
| } |
| if (value != pos) { |
| setSelection (value, true, false, true); |
| } |
| sendEvent (SWT.Modify); |
| if (isDisposed ()) return LRESULT.ZERO; |
| break; |
| } |
| return super.wmCommandChild (wParam, lParam); |
| } |
| |
| LRESULT wmKeyDown (int hwnd, int wParam, int lParam) { |
| LRESULT result = super.wmKeyDown (hwnd, wParam, lParam); |
| if (result != null) return result; |
| |
| /* Increment the value */ |
| UDACCEL udaccel = new UDACCEL (); |
| OS.SendMessage (hwndUpDown, OS.UDM_GETACCEL, 1, udaccel); |
| int delta = 0; |
| switch (wParam) { |
| case OS.VK_UP: delta = udaccel.nInc; break; |
| case OS.VK_DOWN: delta = -udaccel.nInc; break; |
| case OS.VK_PRIOR: delta = pageIncrement; break; |
| case OS.VK_NEXT: delta = -pageIncrement; break; |
| } |
| if (delta != 0) { |
| int value = getSelectionText (); |
| int newValue = value + delta; |
| int [] max = new int [1], min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); |
| if ((style & SWT.WRAP) != 0) { |
| if (newValue < min [0]) newValue = max [0]; |
| if (newValue > max [0]) newValue = min [0]; |
| } |
| newValue = Math.min (Math.max (min [0], newValue), max [0]); |
| if (value != newValue) setSelection (newValue, true, true, true); |
| } |
| |
| /* Stop the edit control from moving the caret */ |
| switch (wParam) { |
| case OS.VK_UP: |
| case OS.VK_DOWN: |
| return LRESULT.ZERO; |
| } |
| return result; |
| } |
| |
| LRESULT wmKillFocus (int hwnd, int wParam, int lParam) { |
| int value = getSelectionText (); |
| setSelection (value, false, true, false); |
| return super.wmKillFocus (hwnd, wParam, lParam); |
| } |
| |
| LRESULT wmNotifyChild(int wParam, int lParam) { |
| NMHDR hdr = new NMHDR (); |
| OS.MoveMemory (hdr, lParam, NMHDR.sizeof); |
| switch (hdr.code) { |
| case OS.UDN_DELTAPOS: |
| NMUPDOWN lpnmud = new NMUPDOWN (); |
| OS.MoveMemory (lpnmud, lParam, NMUPDOWN.sizeof); |
| int value = lpnmud.iPos + lpnmud.iDelta; |
| int [] max = new int [1], min = new int [1]; |
| OS.SendMessage (hwndUpDown , OS.UDM_GETRANGE32, min, max); |
| if ((style & SWT.WRAP) != 0) { |
| if (value < min [0]) value = max [0]; |
| if (value > max [0]) value = min [0]; |
| } |
| /* |
| * The SWT.Modify event is sent after the widget has been |
| * updated with the new state. Rather than allowing |
| * the default updown window proc to set the value |
| * when the user clicks on the updown control, set |
| * the value explicity and stop the window proc |
| * from running. |
| */ |
| value = Math.min (Math.max (min [0], value), max [0]); |
| if (value != lpnmud.iPos) { |
| setSelection (value, true, true, true); |
| } |
| return LRESULT.ONE; |
| } |
| return super.wmNotifyChild (wParam, lParam); |
| } |
| |
| LRESULT wmScrollChild (int wParam, int lParam) { |
| int code = wParam & 0xFFFF; |
| switch (code) { |
| case OS.SB_THUMBPOSITION: |
| postEvent (SWT.Selection); |
| break; |
| } |
| return super.wmScrollChild (wParam, lParam); |
| } |
| |
| } |