| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| 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 {
|
| 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));
|
| }
|
| /**
|
| * 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) != 0) {
|
| return checkBits (style, SWT.CENTER, SWT.LEFT, SWT.RIGHT, 0, 0, 0);
|
| }
|
| if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) != 0) {
|
| return checkBits (style, SWT.LEFT, SWT.RIGHT, SWT.CENTER, 0, 0, 0);
|
| }
|
| if ((style & SWT.ARROW) != 0) {
|
| return checkBits (style, SWT.UP, SWT.DOWN, SWT.LEFT, SWT.RIGHT, 0, 0);
|
| }
|
| return style;
|
| }
|
| void click () {
|
| OS.XtCallActionProc (handle, ARM_AND_ACTIVATE, new XAnyEvent (), null, 0);
|
| }
|
| 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) {
|
| Display display = getDisplay ();
|
| width += display.scrolledMarginX;
|
| height += display.scrolledMarginY;
|
| 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 (OS.XmStringEmpty (xmString)) height += getFontHeight ();
|
| }
|
| 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) {
|
| state |= HANDLE;
|
| 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.XmNshadowThickness, 1};
|
| OS.XtSetValues (handle, argList1, argList1.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.
|
| */
|
| Display display = getDisplay ();
|
| 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);
|
| 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.XmNshadowThickness, 1};
|
| OS.XtSetValues (handle, argList1, argList1.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 getDisplay ().buttonBackground;
|
| }
|
| Font defaultFont () {
|
| return getDisplay ().buttonFont;
|
| }
|
| int defaultForeground () {
|
| return getDisplay ().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;
|
| }
|
| /**
|
| * 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] != 0;
|
| }
|
| /**
|
| * Returns the receiver's text, which will be an empty
|
| * string if it has never been set.
|
| *
|
| * @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 "";
|
| int [] argList = {OS.XmNlabelString, 0, OS.XmNmnemonic, 0};
|
| OS.XtGetValues (handle, argList, argList.length / 2);
|
| int xmString = argList [1];
|
| int mnemonic = argList [3];
|
| if (mnemonic == OS.XK_VoidSymbol) mnemonic = 0;
|
| if (xmString == 0) error (SWT.ERROR_CANNOT_GET_TEXT);
|
| char [] result = null;
|
| int address = OS.XmStringUnparse (
|
| xmString,
|
| null,
|
| OS.XmCHARSET_TEXT,
|
| OS.XmCHARSET_TEXT,
|
| null,
|
| 0,
|
| OS.XmOUTPUT_ALL);
|
| if (address != 0) {
|
| int length = OS.strlen (address);
|
| byte [] buffer = new byte [length];
|
| OS.memmove (buffer, address, length);
|
| OS.XtFree (address);
|
| result = Converter.mbcsToWcs (getCodePage (), buffer);
|
| }
|
| if (xmString != 0) OS.XmStringFree (xmString);
|
| int count = 0;
|
| if (mnemonic != 0) count++;
|
| for (int i=0; i<result.length-1; i++)
|
| if (result [i] == Mnemonic) count++;
|
| char [] newResult = result;
|
| if ((count != 0) || (mnemonic != 0)) {
|
| newResult = new char [result.length + count];
|
| int i = 0, j = 0;
|
| while (i < result.length) {
|
| if ((mnemonic != 0) && (result [i] == mnemonic)) {
|
| if (j < newResult.length) newResult [j++] = Mnemonic;
|
| mnemonic = 0;
|
| }
|
| if ((newResult [j++] = result [i++]) == Mnemonic)
|
| if (j < newResult.length) newResult [j++] = Mnemonic;
|
| }
|
| }
|
| return new String (newResult);
|
| }
|
| void hookEvents () {
|
| super.hookEvents ();
|
| int callback = OS.XmNactivateCallback;
|
| int windowProc = getDisplay ().windowProc;
|
| if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) != 0) callback = OS.XmNvalueChangedCallback;
|
| OS.XtAddCallback (handle, callback, windowProc, SWT.Selection);
|
| }
|
| 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);
|
| }
|
| int processFocusIn () {
|
| super.processFocusIn ();
|
| // widget could be disposed at this point
|
| if (handle == 0) return 0;
|
| if ((style & SWT.PUSH) != 0) {
|
| menuShell ().setDefaultButton (this, false);
|
| }
|
| return 0;
|
| }
|
| int processFocusOut () {
|
| super.processFocusOut ();
|
| // 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 processSelection (int callData) {
|
| if ((style & SWT.RADIO) != 0) {
|
| if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) selectRadio ();
|
| }
|
| return super.processSelection (callData);
|
| }
|
| 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 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 () {
|
| Control [] children = parent._getChildren ();
|
| for (int i=0; i<children.length; i++) {
|
| Control child = children [i];
|
| if (this != child && child instanceof Button) {
|
| Button button = (Button) child;
|
| if ((button.getStyle () & SWT.RADIO) != 0) {
|
| if (button.getSelection ()) {
|
| button.setSelection (false);
|
| button.postEvent (SWT.Selection);
|
| }
|
| }
|
| }
|
| }
|
| 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);
|
| int [] argList = {OS.XmNlabelType, 0};
|
| OS.XtGetValues (handle, argList, argList.length / 2);
|
| if (argList [1] == OS.XmPIXMAP) setBitmap (image);
|
| }
|
| void setBitmap (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);
|
| Display display = getDisplay ();
|
| switch (image.type) {
|
| case SWT.BITMAP:
|
| labelPixmap = image.pixmap;
|
| disabled = new Image (display, image, SWT.IMAGE_DISABLE);
|
| labelInsensitivePixmap = disabled.pixmap;
|
| break;
|
| 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, OS.XmPIXMAP,
|
| OS.XmNlabelPixmap, labelPixmap,
|
| OS.XmNlabelInsensitivePixmap, labelInsensitivePixmap,
|
| };
|
| OS.XtSetValues (handle, argList, argList.length / 2);
|
| }
|
| 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);
|
| }
|
| /**
|
| * Sets the receiver's image to the argument, which may be
|
| * null indicating that no image should be displayed.
|
| *
|
| * @param image the image to display on the receiver (may be null)
|
| *
|
| * @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();
|
| setBitmap (this.image = image);
|
| }
|
| /** |
| * 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 ? 1 : 0};
|
| OS.XtSetValues (handle, argList, argList.length / 2);
|
| }
|
| /**
|
| * 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>
|
| *
|
| * @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;
|
| char [] text = new char [string.length ()];
|
| string.getChars (0, text.length, text, 0);
|
| int i=0, j=0, mnemonic=0;
|
| while (i < text.length) {
|
| if ((text [j++] = text [i++]) == Mnemonic) {
|
| if (i == text.length) {continue;}
|
| if (text [i] == Mnemonic) {i++; continue;}
|
| if (mnemonic == 0) mnemonic = text [i];
|
| j--;
|
| }
|
| }
|
| while (j < text.length) text [j++] = 0;
|
| 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);
|
| }
|
| int traversalCode (int key, XKeyEvent xEvent) {
|
| return super.traversalCode (key, xEvent) | SWT.TRAVERSE_MNEMONIC;
|
| }
|
| }
|