diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Button.java')
-rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Button.java | 804 |
1 files changed, 0 insertions, 804 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Button.java b/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Button.java deleted file mode 100755 index d8ce18df90..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/motif/org/eclipse/swt/widgets/Button.java +++ /dev/null @@ -1,804 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2006 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.motif.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class represent a selectable user interface object that - * issues notification when pressed and released. - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd> - * <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd> - * <dt><b>Events:</b></dt> - * <dd>Selection</dd> - * </dl> - * <p> - * Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE - * may be specified. - * </p><p> - * Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified. - * </p><p> - * Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified - * when the ARROW style is specified. - * </p><p> - * IMPORTANT: This class is intended to be subclassed <em>only</em> - * within the SWT implementation. - * </p> - */ -public class Button extends Control { - String text = ""; - Image image, bitmap, disabled; - static final byte [] ARM_AND_ACTIVATE; - static { - String name = "ArmAndActivate"; - int length = name.length(); - char [] unicode = new char [length]; - name.getChars (0, length, unicode, 0); - byte [] buffer = new byte [length + 1]; - for (int i = 0; i < length; i++) { - buffer[i] = (byte) unicode[i]; - } - ARM_AND_ACTIVATE = buffer; - } -/** - * 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#ARROW - * @see SWT#CHECK - * @see SWT#PUSH - * @see SWT#RADIO - * @see SWT#TOGGLE - * @see SWT#FLAT - * @see SWT#LEFT - * @see SWT#RIGHT - * @see SWT#CENTER - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Button (Composite parent, int style) { - super (parent, checkStyle (style)); -} -void _setImage (Image image) { - int labelPixmap = OS.XmUNSPECIFIED_PIXMAP; - int labelInsensitivePixmap = OS.XmUNSPECIFIED_PIXMAP; - if (bitmap != null) bitmap.dispose (); - if (disabled != null) disabled.dispose (); - bitmap = disabled = null; - if (image != null) { - if (image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); - switch (image.type) { - case SWT.BITMAP: - ImageData data; - if (image.mask == 0 && (data = image.getImageData ()).alpha == -1 && data.alphaData == null && data.transparentPixel == -1) { - labelPixmap = image.pixmap; - disabled = new Image (display, image, SWT.IMAGE_DISABLE); - labelInsensitivePixmap = disabled.pixmap; - break; - } - //FALL THROUGH - case SWT.ICON: - Rectangle rect = image.getBounds (); - bitmap = new Image (display, rect.width, rect.height); - GC gc = new GC (bitmap); - gc.setBackground (getBackground ()); - gc.fillRectangle (rect); - gc.drawImage (image, 0, 0); - gc.dispose (); - labelPixmap = bitmap.pixmap; - disabled = new Image (display, bitmap, SWT.IMAGE_DISABLE); - labelInsensitivePixmap = disabled.pixmap; - break; - default: - error (SWT.ERROR_NOT_IMPLEMENTED); - } - } - int [] argList = { - OS.XmNlabelType, image == null ? OS.XmSTRING : OS.XmPIXMAP, - OS.XmNlabelPixmap, labelPixmap, - OS.XmNlabelInsensitivePixmap, labelInsensitivePixmap, - }; - OS.XtSetValues (handle, argList, argList.length / 2); -} -void _setText (String string) { - char [] text = new char [string.length ()]; - string.getChars (0, text.length, text, 0); - int mnemonic = fixMnemonic (text); - byte [] buffer = Converter.wcsToMbcs (getCodePage (), text, true); - int xmString = OS.XmStringParseText ( - buffer, - 0, - OS.XmFONTLIST_DEFAULT_TAG, - OS.XmCHARSET_TEXT, - null, - 0, - 0); - if (xmString == 0) error (SWT.ERROR_CANNOT_SET_TEXT); - if (mnemonic == 0) mnemonic = OS.XK_VoidSymbol; - int [] argList = { - OS.XmNlabelType, OS.XmSTRING, - OS.XmNlabelString, xmString, - OS.XmNmnemonic, mnemonic, - }; - OS.XtSetValues (handle, argList, argList.length / 2); - if (xmString != 0) OS.XmStringFree (xmString); -} -/** - * 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 called when the control is selected. - * <code>widgetDefaultSelected</code> is not called. - * </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); -} -static int checkStyle (int style) { - style = checkBits (style, SWT.PUSH, SWT.ARROW, SWT.CHECK, SWT.RADIO, SWT.TOGGLE, 0); - if ((style & (SWT.PUSH | SWT.TOGGLE)) != 0) { - return checkBits (style, SWT.CENTER, SWT.LEFT, SWT.RIGHT, 0, 0, 0); - } - if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { - return checkBits (style, SWT.LEFT, SWT.RIGHT, SWT.CENTER, 0, 0, 0); - } - if ((style & SWT.ARROW) != 0) { - style |= SWT.NO_FOCUS; - return checkBits (style, SWT.UP, SWT.DOWN, SWT.LEFT, SWT.RIGHT, 0, 0); - } - return style; -} -void click () { - int event = OS.XtMalloc (XEvent.sizeof); - OS.XtCallActionProc (handle, ARM_AND_ACTIVATE, event, null, 0); - OS.XtFree (event); -} -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget(); - int border = getBorderWidth (); - int width = border * 2, height = border * 2; - if ((style & SWT.ARROW) != 0) { - width += display.scrolledMarginX; - height += display.scrolledMarginY; - if (wHint != SWT.DEFAULT) width = wHint + (border * 2); - if (hHint != SWT.DEFAULT) height = hHint + (border * 2); - return new Point (width, height); - } - XtWidgetGeometry result = new XtWidgetGeometry (); - result.request_mode = OS.CWWidth | OS.CWHeight; - int [] argList2 = {OS.XmNrecomputeSize, 1}; - OS.XtSetValues(handle, argList2, argList2.length / 2); - OS.XtQueryGeometry (handle, null, result); - int [] argList3 = {OS.XmNrecomputeSize, 0}; - OS.XtSetValues(handle, argList3, argList3.length / 2); - width += result.width; - height += result.height; - /* - * Feature in Motif. If a button's labelType is XmSTRING but it - * has no label set into it yet, recomputing the size will - * not take into account the height of the font, as we would - * like it to. Take care of this case. - */ - int [] argList = {OS.XmNlabelType, 0}; - OS.XtGetValues (handle, argList, argList.length / 2); - if (argList [1] == OS.XmSTRING) { - int [] argList1 = {OS.XmNlabelString, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int xmString = argList1 [1]; - if (xmString != 0) { - if (OS.XmStringEmpty (xmString)) { - int xmString2 = OS.XmStringCreateLocalized (new byte[]{' ', '\0'}); - if (xmString2 != 0) { - height += OS.XmStringHeight (font.handle, xmString2); - OS.XmStringFree(xmString2); - } - } - OS.XmStringFree (xmString); - } - } - if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) { - int [] argList4 = new int [] { - OS.XmNmarginLeft, 0, - OS.XmNmarginRight, 0, - OS.XmNmarginTop, 0, - OS.XmNmarginBottom, 0, - }; - OS.XtGetValues (handle, argList4, argList4.length / 2); - if (wHint != SWT.DEFAULT) width = wHint + argList4 [1] + argList4 [3] + (border * 2); - if (hHint != SWT.DEFAULT) height = hHint + argList4 [5] + argList4 [7] + (border * 2); - } - return new Point (width, height); -} -void createHandle (int index) { - if ((style & SWT.PUSH) == 0) state |= THEME_BACKGROUND; - int borderWidth = (style & SWT.BORDER) != 0 ? 1 : 0; - int parentHandle = parent.handle; - - /* ARROW button */ - if ((style & SWT.ARROW) != 0) { - int alignment = OS.XmARROW_UP; - if ((style & SWT.UP) != 0) alignment = OS.XmARROW_UP; - if ((style & SWT.DOWN) != 0) alignment = OS.XmARROW_DOWN; - if ((style & SWT.LEFT) != 0) alignment = OS.XmARROW_LEFT; - if ((style & SWT.RIGHT) != 0) alignment = OS.XmARROW_RIGHT; - int [] argList = { - OS.XmNtraversalOn, 0, - OS.XmNarrowDirection, alignment, - OS.XmNborderWidth, borderWidth, - OS.XmNancestorSensitive, 1, - }; - handle = OS.XmCreateArrowButton (parentHandle, null, argList, argList.length / 2); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - if ((style & SWT.FLAT) != 0) { - int [] argList1 = {OS.XmNbottomShadowColor, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int [] argList2 = { - OS.XmNshadowThickness, 1, - OS.XmNtopShadowColor, argList1 [1], - }; - OS.XtSetValues (handle, argList2, argList2.length / 2); - } - return; - } - - /* Compute alignment */ - int alignment = OS.XmALIGNMENT_BEGINNING; - if ((style & SWT.CENTER) != 0) alignment = OS.XmALIGNMENT_CENTER; - if ((style & SWT.RIGHT) != 0) alignment = OS.XmALIGNMENT_END; - - /* TOGGLE button */ - if ((style & SWT.TOGGLE) != 0) { - /* - * Bug in Motif. When XmNindicatorOn is set to false, - * Motif doesn't reset the shadow thickness to give a - * push button look. The fix is to set the shadow - * thickness when ever this resource is changed. - */ - int thickness = display.buttonShadowThickness; - int [] argList = { - OS.XmNancestorSensitive, 1, - OS.XmNrecomputeSize, 0, - OS.XmNindicatorOn, 0, - OS.XmNshadowThickness, (style & SWT.FLAT) != 0 ? 1 : thickness, - OS.XmNalignment, alignment, - OS.XmNborderWidth, borderWidth, - }; - handle = OS.XmCreateToggleButton (parentHandle, null, argList, argList.length / 2); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - if ((style & SWT.FLAT) != 0) { - int [] argList1 = {OS.XmNbottomShadowColor, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int [] argList2 = {OS.XmNtopShadowColor, argList1 [1]}; - OS.XtSetValues (handle, argList2, argList2.length / 2); - } - return; - } - - /* CHECK or RADIO button */ - if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { - /* - * Bug in Motif. For some reason, a toggle button - * with XmNindicatorType XmONE_OF_MANY must have this - * value set at creation or the highlight color will - * not be correct. The fix is to set these values - * on create. - */ - int indicatorType = OS.XmONE_OF_MANY; - if ((style & SWT.CHECK) != 0) indicatorType = OS.XmN_OF_MANY; - int [] argList = { - OS.XmNancestorSensitive, 1, - OS.XmNrecomputeSize, 0, - OS.XmNindicatorType, indicatorType, - OS.XmNalignment, alignment, - OS.XmNborderWidth, borderWidth, - }; - handle = OS.XmCreateToggleButton (parentHandle, null, argList, argList.length / 2); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - return; - } - - /* PUSH button */ - int [] argList = { - OS.XmNancestorSensitive, 1, - OS.XmNrecomputeSize, 0, - OS.XmNalignment, alignment, - OS.XmNborderWidth, borderWidth, - /* - * This code is intentionally commented. On some - * platforms, the standard behavior is that push - * buttons are tab groups, traversed with the tab - * key. On Motif, push buttons are tab items, - * that are traversed with the arrow keys. This - * behavior is unspecifed so the line remains - * commented. - */ -// OS.XmNnavigationType, OS.XmTAB_GROUP, - }; - handle = OS.XmCreatePushButton (parentHandle, null, argList, argList.length / 2); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - if ((style & SWT.FLAT) != 0) { - int [] argList1 = {OS.XmNbottomShadowColor, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int [] argList2 = { - OS.XmNshadowThickness, 1, - OS.XmNtopShadowColor, argList1 [1], - }; - OS.XtSetValues (handle, argList2, argList2.length / 2); - } -} -void createWidget (int index) { - super.createWidget (index); - if ((style & SWT.PUSH) == 0) return; - if (getShell ().parent == null) return; - int [] argList = new int [] {OS.XmNdefaultButtonShadowThickness, 1}; - OS.XtSetValues (handle, argList, argList.length / 2); -} -int defaultBackground () { - return display.buttonBackground; -} -Font defaultFont () { - return display.buttonFont; -} -int defaultForeground () { - return display.buttonForeground; -} -/** - * Returns a value which describes the position of the - * text or image in the receiver. The value will be one of - * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> - * unless the receiver is an <code>ARROW</code> button, in - * which case, the alignment will indicate the direction of - * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, - * <code>UP</code> or <code>DOWN</code>). - * - * @return the alignment - * - * @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 getAlignment () { - checkWidget(); - if ((style & SWT.ARROW) != 0) { - int [] argList = {OS.XmNarrowDirection, 0}; - OS.XtGetValues (handle, argList, argList.length / 2); - int direction = argList [1]; - if (direction == OS.XmARROW_UP) return SWT.UP; - if (direction == OS.XmARROW_DOWN) return SWT.DOWN; - if (direction == OS.XmARROW_LEFT) return SWT.LEFT; - if (direction == OS.XmARROW_RIGHT) return SWT.RIGHT; - return SWT.UP; - } - int [] argList = {OS.XmNalignment, 0}; - OS.XtGetValues (handle, argList, argList.length / 2); - int alignment = argList [1]; - if (alignment == OS.XmALIGNMENT_BEGINNING) return SWT.LEFT; - if (alignment == OS.XmALIGNMENT_CENTER) return SWT.CENTER; - if (alignment == OS.XmALIGNMENT_END)return SWT.RIGHT; - return SWT.CENTER; -} -boolean getDefault () { - if ((style & SWT.PUSH) == 0) return false; -// int [] argList = {OS.XmNshowAsDefault, 0}; -// OS.XtGetValues (handle, argList, argList.length / 2); -// return argList [1] != 0; - return this == menuShell ().defaultButton; -} -/** - * Returns the receiver's image if it has one, or null - * if it does not. - * - * @return the receiver's image - * - * @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 Image getImage () { - checkWidget(); - return image; -} -String getNameText () { - return getText (); -} -/** - * Returns <code>true</code> if the receiver is selected, - * and false otherwise. - * <p> - * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, - * it is selected when it is checked. When it is of type <code>TOGGLE</code>, - * it is selected when it is pushed in. If the receiver is of any other type, - * this method returns false. - * - * @return the selection state - * - * @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 boolean getSelection () { - checkWidget(); - if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return false; - int [] argList = {OS.XmNset, 0}; - OS.XtGetValues (handle, argList, argList.length / 2); - return argList [1] != OS.XmUNSET; -} -/** - * Returns the receiver's text, which will be an empty - * string if it has never been set or if the receiver is - * an <code>ARROW</code> button. - * - * @return the receiver's text - * - * @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 String getText () { - checkWidget(); - if ((style & SWT.ARROW) != 0) return ""; - return text; -} -void hookEvents () { - super.hookEvents (); - int windowProc = display.windowProc; - if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) != 0) { - OS.XtAddCallback (handle, OS.XmNvalueChangedCallback, windowProc, VALUE_CHANGED_CALLBACK); - } else { - OS.XtAddCallback (handle, OS.XmNactivateCallback, windowProc, ACTIVATE_CALLBACK); - } - -} -boolean mnemonicHit (char key) { - if (!setFocus ()) return false; - click (); - return true; -} -boolean mnemonicMatch (char key) { - char mnemonic = findMnemonic (getText ()); - if (mnemonic == '\0') return false; - return Character.toUpperCase (key) == Character.toUpperCase (mnemonic); -} -void releaseWidget () { - super.releaseWidget (); - int [] argList = { - OS.XmNlabelPixmap, OS.XmUNSPECIFIED_PIXMAP, - OS.XmNlabelInsensitivePixmap, OS.XmUNSPECIFIED_PIXMAP, - }; - OS.XtSetValues (handle, argList, argList.length / 2); - if (bitmap != null) bitmap.dispose (); - if (disabled != null) disabled.dispose (); - image = bitmap = disabled = null; -} -/** - * 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); -} -void selectRadio () { - /* - * This code is intentionally commented. When two groups - * of radio buttons with the same parent are separated by - * another control, the correct behavior should be that - * the two groups act independently. This is consistent - * with radio tool and menu items. The commented code - * implements this behavior. - */ -// int index = 0; -// Control [] children = parent._getChildren (); -// while (index < children.length && children [index] != this) index++; -// int i = index - 1; -// while (i >= 0 && children [i].setRadioSelection (false)) --i; -// int j = index + 1; -// while (j < children.length && children [j].setRadioSelection (false)) j++; -// setSelection (true); - Control [] children = parent._getChildren (); - for (int i=0; i<children.length; i++) { - Control child = children [i]; - if (this != child) child.setRadioSelection (false); - } - setSelection (true); -} -/** - * Controls how text, images and arrows will be displayed - * in the receiver. The argument should be one of - * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code> - * unless the receiver is an <code>ARROW</code> button, in - * which case, the argument indicates the direction of - * the arrow (one of <code>LEFT</code>, <code>RIGHT</code>, - * <code>UP</code> or <code>DOWN</code>). - * - * @param alignment the new alignment - * - * @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 setAlignment (int alignment) { - checkWidget(); - if ((style & SWT.ARROW) != 0) { - int [] argList = {OS.XmNarrowDirection, OS.XmARROW_UP}; - if ((alignment & SWT.UP) != 0) argList [1] = OS.XmARROW_UP; - if ((alignment & SWT.DOWN) != 0) argList [1] = OS.XmARROW_DOWN; - if ((alignment & SWT.LEFT) != 0) argList [1] = OS.XmARROW_LEFT; - if ((alignment & SWT.RIGHT) != 0) argList [1] = OS.XmARROW_RIGHT; - OS.XtSetValues (handle, argList, argList.length / 2); - return; - } - if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return; - int [] argList = {OS.XmNalignment, OS.XmALIGNMENT_BEGINNING}; - if ((alignment & SWT.CENTER) != 0) argList [1] = OS.XmALIGNMENT_CENTER; - if ((alignment & SWT.RIGHT) != 0) argList [1] = OS.XmALIGNMENT_END; - OS.XtSetValues (handle, argList, argList.length / 2); -} -void setBackgroundPixel (int pixel) { - super.setBackgroundPixel (pixel); - if ((style & SWT.FLAT) != 0) { - int [] argList1 = {OS.XmNbottomShadowColor, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int [] argList2 = {OS.XmNtopShadowColor, argList1 [1]}; - OS.XtSetValues (handle, argList2, argList2.length / 2); - } - int [] argList = {OS.XmNlabelType, 0}; - OS.XtGetValues (handle, argList, argList.length / 2); - if (argList [1] == OS.XmPIXMAP) _setImage (image); -} - -void setDefault (boolean value) { - if ((style & SWT.PUSH) == 0) return; - if (getShell ().parent == null) return; - int [] argList = {OS.XmNshowAsDefault, (value ? 1 : 0)}; - OS.XtSetValues (handle, argList, argList.length / 2); -} -public void setFont (Font font) { - checkWidget(); - - /* - * Bug in Motif. Setting the font in a button widget that does - * not have a non-empty string causes GP on UTF-8 locale. - * The fix is to set a non-empty string, change the font, - * and restore the empty string at the end. - */ - int [] argList1 = {OS.XmNlabelString, 0, OS.XmNlabelType, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - boolean fixString = OS.IsDBLocale && OS.XmStringEmpty (argList1 [1]); - if (fixString) { - byte[] buffer = Converter.wcsToMbcs (getCodePage (), "string", true); - int xmString = OS.XmStringCreateLocalized (buffer); - int [] argList2 = { - OS.XmNlabelType, OS.XmSTRING, - OS.XmNlabelString, xmString, - }; - OS.XtSetValues (handle, argList2, argList2.length / 2); - OS.XmStringFree (xmString); - } - super.setFont (font); - if (fixString) OS.XtSetValues (handle, argList1, argList1.length / 2); -} -/** - * Sets the receiver's image to the argument, which may be - * <code>null</code> indicating that no image should be displayed. - * - * @param image the image to display on the receiver (may be <code>null</code>) - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</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 setImage (Image image) { - checkWidget(); - if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); - if ((style & SWT.ARROW) != 0) return; - this.image = image; - /* This code is intentionally commented*/ -// if (image == null || text.length () != 0) { -// _setText (text); -// return; -// } - _setImage (image); -} -boolean setRadioSelection (boolean value) { - if ((style & SWT.RADIO) == 0) return false; - if (getSelection () != value) { - setSelection (value); - postEvent (SWT.Selection); - } - return true; -} -/** - * Sets the selection state of the receiver, if it is of type <code>CHECK</code>, - * <code>RADIO</code>, or <code>TOGGLE</code>. - * - * <p> - * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, - * it is selected when it is checked. When it is of type <code>TOGGLE</code>, - * it is selected when it is pushed in. - * - * @param selected the new selection state - * - * @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 (boolean selected) { - checkWidget(); - if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return; - int [] argList = {OS.XmNset, selected ? OS.XmSET : OS.XmUNSET}; - OS.XtSetValues (handle, argList, argList.length / 2); - updateShadows (); -} -/** - * Sets the receiver's text. - * <p> - * This method sets the button label. The label may include - * the mnemonic character but must not contain line delimiters. - * </p> - * <p> - * Mnemonics are indicated by an '&' that causes the next - * character to be the mnemonic. When the user presses a - * key sequence that matches the mnemonic, a selection - * event occurs. On most platforms, the mnemonic appears - * underlined but may be emphasised in a platform specific - * manner. The mnemonic indicator character '&' can be - * escaped by doubling it in the string, causing a single - * '&' to be displayed. - * </p> - * - * @param string the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the text 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> - */ -public void setText (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.ARROW) != 0) return; - /* - * Feature in Motif. Motif does not optimize the case - * when the same text is set into a button causing - * it to flash. The fix is to test for equality and - * do nothing. - */ - if (text.equals (string)) return; - text = string; - /* This code is intentionally commented*/ -// if (text.length () == 0 && image != null) { -// _setImage (image); -// return; -// } - _setText (string); -} -int traversalCode (int key, XKeyEvent xEvent) { - return super.traversalCode (key, xEvent) | SWT.TRAVERSE_MNEMONIC; -} -void updateShadows () { - if ((style & SWT.FLAT) != 0 && (style & SWT.TOGGLE) != 0) { - int [] argList1 = {OS.XmNset, 0}; - OS.XtGetValues (handle, argList1, argList1.length / 2); - int pixel = argList1 [1] == OS.XmUNSET ? display.compositeBottomShadow : display.compositeTopShadow; - int [] argList2 = {OS.XmNtopShadowColor, pixel}; - OS.XtSetValues (handle, argList2, argList2.length / 2); - } -} -int xFocusIn (XFocusChangeEvent xEvent) { - super.xFocusIn (xEvent); - // widget could be disposed at this point - if (handle == 0) return 0; - if ((style & SWT.PUSH) != 0) { - menuShell ().setDefaultButton (this, false); - } - return 0; -} -int xFocusOut (XFocusChangeEvent xEvent) { - super.xFocusOut (xEvent); - // widget could be disposed at this point - if (handle == 0) return 0; - if ((style & SWT.PUSH) != 0 && getDefault ()) { - menuShell ().setDefaultButton (null, false); - } - return 0; -} -int XmNactivateCallback (int w, int client_data, int call_data) { - postEvent (SWT.Selection); - return 0; -} -int XmNvalueChangedCallback (int w, int client_data, int call_data) { - if ((style & SWT.RADIO) != 0) { - if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) { - selectRadio (); - } - } - updateShadows (); - postEvent (SWT.Selection); - return 0; -} -} |