| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * (c) Copyright IBM Corp. 2000, 2001.
|
| * All Rights Reserved
|
| */
|
|
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.photon.*;
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.graphics.*;
|
| 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>LEFT, RIGHT, CENTER</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is intended to be subclassed <em>only</em> |
| * within the SWT implementation. |
| * </p> |
| */ |
| public class Button extends Control {
|
| Image image;
|
|
|
| /** |
| * 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 |
| * for all SWT widget classes should include a comment which |
| * describes the style constants which are applicable to the class. |
| * </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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Button (Composite parent, int style) {
|
| super (parent, checkStyle (style));
|
| }
|
|
|
| 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;
|
| }
|
|
|
| /** |
| * 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);
|
| }
|
|
|
| void click () {
|
| int rid = OS.PtWidgetRid (handle);
|
| if (rid == 0) return;
|
| PhEvent_t event = new PhEvent_t ();
|
| event.emitter_rid = rid;
|
| event.emitter_handle = handle;
|
| event.collector_rid = rid;
|
| event.collector_handle = handle;
|
| event.flags = OS.Ph_EVENT_DIRECT;
|
| event.processing_flags = OS.Ph_FAKE_EVENT;
|
| event.type = OS.Ph_EV_BUT_PRESS;
|
| event.num_rects = 1;
|
| PhPointerEvent_t pe = new PhPointerEvent_t ();
|
| pe.click_count = 1;
|
| pe.buttons = OS.Ph_BUTTON_SELECT;
|
| PhRect_t rect = new PhRect_t ();
|
| int ptr = OS.malloc (PhEvent_t.sizeof + PhPointerEvent_t.sizeof + PhRect_t.sizeof);
|
| OS.memmove (ptr, event, PhEvent_t.sizeof);
|
| OS.memmove (ptr + PhEvent_t.sizeof, rect, PhRect_t.sizeof);
|
| OS.memmove (ptr + PhEvent_t.sizeof + PhRect_t.sizeof, pe, PhPointerEvent_t.sizeof);
|
| OS.PtSendEventToWidget (handle, ptr);
|
| OS.PtFlush ();
|
| event.type = OS.Ph_EV_BUT_RELEASE;
|
| event.subtype = OS.Ph_EV_RELEASE_REAL;
|
| OS.memmove (ptr, event, PhEvent_t.sizeof);
|
| OS.memmove (ptr + PhEvent_t.sizeof, rect, PhRect_t.sizeof);
|
| OS.memmove (ptr + PhEvent_t.sizeof + PhRect_t.sizeof, pe, PhPointerEvent_t.sizeof);
|
| OS.PtSendEventToWidget (handle, ptr);
|
| OS.free (ptr);
|
| }
|
|
|
| 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) {
|
| if (wHint != SWT.DEFAULT) width += wHint;
|
| else width = 17;
|
| if (hHint != SWT.DEFAULT) height += hHint;
|
| else height = 17;
|
| return new Point (width, height);
|
| }
|
| PhDim_t dim = new PhDim_t();
|
| if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidget (handle);
|
| OS.PtWidgetPreferredSize(handle, dim);
|
| width = dim.w; height = dim.h;
|
| if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) {
|
| int [] args = {
|
| OS.Pt_ARG_MARGIN_WIDTH, 0, 0, // 1
|
| OS.Pt_ARG_MARGIN_HEIGHT, 0, 0, // 4
|
| OS.Pt_ARG_MARGIN_LEFT, 0, 0, // 7
|
| OS.Pt_ARG_MARGIN_RIGHT, 0, 0, // 10
|
| OS.Pt_ARG_MARGIN_TOP, 0, 0, // 13
|
| OS.Pt_ARG_MARGIN_BOTTOM, 0, 0, // 16
|
| };
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| PhRect_t rect = new PhRect_t ();
|
| PhArea_t area = new PhArea_t ();
|
| rect.lr_x = (short) (wHint - 1);
|
| rect.lr_y = (short) (hHint - 1);
|
| OS.PtSetAreaFromWidgetCanvas (handle, rect, area);
|
| if (wHint != SWT.DEFAULT) {
|
| width = area.size_w + (args [1] * 2) + args [7] + args [10];
|
| }
|
| if (hHint != SWT.DEFAULT) {
|
| height = area.size_h + (args [4] * 2) + args [13] + args [16];
|
| }
|
| }
|
| return new Point (width, height);
|
| }
|
|
|
| void createHandle (int index) {
|
| state |= HANDLE;
|
| Display display = getDisplay ();
|
| int parentHandle = parent.handle;
|
|
|
| /* ARROW button */
|
| if ((style & SWT.ARROW) != 0) {
|
| int [] args = {
|
| OS.Pt_ARG_BASIC_FLAGS, OS.Pt_HORIZONTAL_GRADIENT, OS.Pt_STATIC_GRADIENT | OS.Pt_HORIZONTAL_GRADIENT,
|
| OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
|
| };
|
| handle = OS.PtCreateWidget (display.PtButton, parentHandle, args.length / 3, args);
|
| if (handle == 0) error (SWT.ERROR_NO_HANDLES);
|
| return;
|
| }
|
|
|
| /* Compute alignment */
|
| int alignment = OS.Pt_LEFT;
|
| if ((style & SWT.CENTER) != 0) alignment = OS.Pt_CENTER;
|
| if ((style & SWT.RIGHT) != 0) alignment = OS.Pt_RIGHT;
|
|
|
| /* CHECK or RADIO button */
|
| if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
|
| int [] args = {
|
| OS.Pt_ARG_HORIZONTAL_ALIGNMENT, alignment, 0,
|
| OS.Pt_ARG_INDICATOR_TYPE, (style & SWT.CHECK) != 0 ? OS.Pt_N_OF_MANY : OS.Pt_ONE_OF_MANY, 0,
|
| OS.Pt_ARG_FILL_COLOR, display.WIDGET_BACKGROUND, 0,
|
| OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
|
| };
|
|
|
| handle = OS.PtCreateWidget (display.PtToggleButton, parentHandle, args.length / 3, args);
|
| if (handle == 0) error (SWT.ERROR_NO_HANDLES);
|
| return;
|
| }
|
|
|
| /* PUSH or TOGGLE button */
|
| int [] args = {
|
| OS.Pt_ARG_FLAGS, (style & SWT.TOGGLE) != 0 ? OS.Pt_TOGGLE : 0, OS.Pt_TOGGLE,
|
| OS.Pt_ARG_HORIZONTAL_ALIGNMENT, alignment, 0,
|
| OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
|
| };
|
| handle = OS.PtCreateWidget (display.PtButton, parentHandle, args.length / 3, args);
|
| if (handle == 0) error (SWT.ERROR_NO_HANDLES);
|
| }
|
|
|
| /** |
| * 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) {
|
| if ((style & SWT.UP) != 0) return SWT.UP;
|
| if ((style & SWT.DOWN) != 0) return SWT.DOWN;
|
| if ((style & SWT.LEFT) != 0) return SWT.LEFT;
|
| if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
|
| return SWT.UP;
|
| }
|
| if ((style & SWT.LEFT) != 0) return SWT.LEFT;
|
| if ((style & SWT.CENTER) != 0) return SWT.CENTER;
|
| if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
|
| return SWT.LEFT;
|
| }
|
|
|
| boolean getDefault () {
|
| if ((style & SWT.PUSH) == 0) return false;
|
| int [] args = {OS.Pt_ARG_BEVEL_CONTRAST, 0, 0};
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| return args [1] == 100;
|
| }
|
|
|
| /** |
| * 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;
|
| }
|
|
|
| /**
|
| * 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. 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 [] args = {OS.Pt_ARG_FLAGS, 0, 0};
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| return (args [1] & OS.Pt_SET) != 0;
|
| }
|
|
|
| String getNameText () {
|
| return getText ();
|
| }
|
|
|
| /** |
| * 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 [] args = {
|
| OS.Pt_ARG_TEXT_STRING, 0, 0,
|
| OS.Pt_ARG_ACCEL_KEY, 0, 0,
|
| };
|
| OS.PtGetResources (handle, args.length / 3, args);
|
| if (args [1] == 0) return "";
|
| int length = OS.strlen (args [1]);
|
| byte [] buffer = new byte [length];
|
| OS.memmove (buffer, args [1], length);
|
| char [] result = Converter.mbcsToWcs (null, buffer);
|
| int count = 0;
|
| int mnemonic = 0;
|
| if (args [4] != 0) {
|
| int length2 = OS.strlen (args [4]);
|
| if (length2 > 0) {
|
| byte [] buffer2 = new byte [length2];
|
| OS.memmove (buffer2, args [4], length2);
|
| char [] result2 = Converter.mbcsToWcs (null, buffer2);
|
| if (result2.length > 0) mnemonic = result2 [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 windowProc = getDisplay ().windowProc;
|
| OS.PtAddCallback (handle, OS.Pt_CB_ACTIVATE, windowProc, SWT.Selection);
|
| }
|
|
|
| int processActivate (int info) {
|
| if (setFocus ()) click ();
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processFocusIn (int info) {
|
| int result = super.processFocusIn (info);
|
| // widget could be disposed at this point
|
| if (handle == 0) return result;
|
| if ((style & SWT.PUSH) == 0) return result;
|
| getShell ().setDefaultButton (this, false);
|
| return result;
|
| }
|
|
|
| int processFocusOut (int info) {
|
| int result = super.processFocusOut (info);
|
| // widget could be disposed at this point
|
| if (handle == 0) return result;
|
| if ((style & SWT.PUSH) == 0) return result;
|
| if (getDefault ()) {
|
| getShell ().setDefaultButton (null, false);
|
| }
|
| return result;
|
| }
|
|
|
| int processPaint (int damage) {
|
| if ((style & SWT.ARROW) != 0) {
|
| OS.PtSuperClassDraw (OS.PtButton (), handle, damage);
|
| PhRect_t rect = new PhRect_t ();
|
| OS.PtCalcCanvas (handle, rect);
|
| int flags = 0;
|
| if ((style & SWT.RIGHT) != 0) flags = 2;
|
| if ((style & SWT.LEFT) != 0) flags = 1;
|
| if ((style & SWT.DOWN) != 0) flags = 8;
|
| if ((style & SWT.UP) != 0) flags = 4;
|
| OS.PgDrawArrow (rect, (short)0, 0x000000, flags);
|
| } else if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
|
| OS.PtSuperClassDraw (OS.PtToggleButton (), handle, damage);
|
| } else {
|
| OS.PtSuperClassDraw (OS.PtButton (), handle, damage);
|
| }
|
| return super.processPaint (damage);
|
| }
|
|
|
| int processSelection (int info) {
|
| if ((style & SWT.RADIO) != 0) {
|
| if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) selectRadio ();
|
| }
|
| postEvent (SWT.Selection);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| void releaseWidget () {
|
| super.releaseWidget ();
|
| image = 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.style & 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) {
|
| if ((style & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT)) == 0) return;
|
| style &= ~(SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT);
|
| style |= alignment & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT);
|
| OS.PtDamageWidget (handle);
|
| return;
|
| }
|
| if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return;
|
| style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER);
|
| style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER);
|
| int [] args = {OS.Pt_ARG_HORIZONTAL_ALIGNMENT, OS.Pt_LEFT, 0};
|
| if ((style & SWT.CENTER) != 0) args [1] = OS.Pt_CENTER;
|
| if ((style & SWT.RIGHT) != 0) args [1] = OS.Pt_RIGHT;
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| void setDefault (boolean value) {
|
| if ((style & SWT.PUSH) == 0) return;
|
| if (getShell ().parent == null) return;
|
| int [] args = {OS.Pt_ARG_BEVEL_CONTRAST, value ? 100 : 20, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| /**
|
| * 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.
|
| *
|
| * @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 [] args = {OS.Pt_ARG_FLAGS, selected ? OS.Pt_SET : 0, OS.Pt_SET};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| /** |
| * 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();
|
| if ((style & SWT.ARROW) != 0) return;
|
| this.image = image;
|
| int imageHandle = 0;
|
| if (image != null) {
|
| if (image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
|
| imageHandle = copyPhImage (image.handle);
|
| }
|
| int [] args = {
|
| OS.Pt_ARG_LABEL_IMAGE, imageHandle, 0,
|
| OS.Pt_ARG_LABEL_TYPE, OS.Pt_IMAGE, 0
|
| };
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| if (imageHandle != 0) OS.free (imageHandle);
|
| }
|
|
|
| /** |
| * 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;
|
| char 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 (null, text, true);
|
| int ptr = OS.malloc (buffer.length);
|
| OS.memmove (ptr, buffer, buffer.length);
|
| int ptr2 = 0;
|
| if (mnemonic != 0) {
|
| byte [] buffer2 = Converter.wcsToMbcs (null, new char []{mnemonic}, true);
|
| ptr2 = OS.malloc (buffer2.length);
|
| OS.memmove (ptr2, buffer2, buffer2.length);
|
| }
|
| replaceMnemonic (mnemonic, true, true);
|
| int [] args = {
|
| OS.Pt_ARG_TEXT_STRING, ptr, 0,
|
| OS.Pt_ARG_LABEL_TYPE, OS.Pt_Z_STRING, 0,
|
| OS.Pt_ARG_ACCEL_KEY, ptr2, 0,
|
| };
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| OS.free (ptr);
|
| OS.free (ptr2);
|
| }
|
|
|
| }
|