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author | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
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committer | Felipe Heidrich <fheidric> | 2009-06-30 22:00:12 +0000 |
commit | f664d297f7bb009784868bf3fcf0b3e3bb9a646b (patch) | |
tree | 54012fe4929893eef4891c88cbbf5841272ff433 /bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java | |
parent | bc18a5e014088ce811f09c603b88361094486062 (diff) | |
download | eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.gz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.tar.xz eclipse.platform.swt-f664d297f7bb009784868bf3fcf0b3e3bb9a646b.zip |
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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java | 836 |
1 files changed, 0 insertions, 836 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java deleted file mode 100644 index 41802dc836..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Button.java +++ /dev/null @@ -1,836 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 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.gtk.*; -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> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#button">Button snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class Button extends Control { - int /*long*/ boxHandle, labelHandle, imageHandle, arrowHandle, groupHandle; - boolean selected, grayed; - ImageList imageList; - Image image; - String text; - -/** - * 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#UP - * @see SWT#DOWN - * @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)); -} - -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; -} - -/** - * Adds the listener to the collection of listeners who will - * be notified when the control is selected by the user, 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 by the user. - * <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); -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; - if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; - /* - * Feature in GTK, GtkCheckButton and GtkRadioButton allocate - * only the minimum size necessary for its child. This causes the child - * alignment to fail. The fix is to set the child size to the size - * of the button. - */ - forceResize (); - int [] reqWidth = null, reqHeight = null; - if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { - reqWidth = new int [1]; - reqHeight = new int [1]; - OS.gtk_widget_get_size_request (boxHandle, reqWidth, reqHeight); - OS.gtk_widget_set_size_request (boxHandle, -1, -1); - } - Point size = computeNativeSize (handle, wHint, hHint, changed); - if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { - OS.gtk_widget_set_size_request (boxHandle, reqWidth [0], reqHeight [0]); - } - if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) { - if ((OS.GTK_WIDGET_FLAGS (handle) & OS.GTK_CAN_DEFAULT) != 0) { - int /*long*/ [] buffer = new int /*long*/ [1]; - GtkBorder border = new GtkBorder (); - OS.gtk_widget_style_get (handle, OS.default_border, buffer, 0); - if (buffer[0] != 0) { - OS.memmove (border, buffer[0], GtkBorder.sizeof); - } else { - /* Use the GTK+ default value of 1 for each. */ - border.left = border.right = border.top = border.bottom = 1; - } - if (wHint != SWT.DEFAULT) size.x += border.left + border.right; - if (hHint != SWT.DEFAULT) size.y += border.top + border.bottom; - } - } - return size; -} - -void createHandle (int index) { - state |= HANDLE; - if ((style & (SWT.PUSH | SWT.TOGGLE)) == 0) state |= THEME_BACKGROUND; - int bits = SWT.ARROW | SWT.TOGGLE | SWT.CHECK | SWT.RADIO | SWT.PUSH; - fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0); - if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_fixed_set_has_window (fixedHandle, true); - switch (style & bits) { - case SWT.ARROW: - int arrow_type = OS.GTK_ARROW_UP; - if ((style & SWT.UP) != 0) arrow_type = OS.GTK_ARROW_UP; - if ((style & SWT.DOWN) != 0) arrow_type = OS.GTK_ARROW_DOWN; - if ((style & SWT.LEFT) != 0) arrow_type = OS.GTK_ARROW_LEFT; - if ((style & SWT.RIGHT) != 0) arrow_type = OS.GTK_ARROW_RIGHT; - handle = OS.gtk_button_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - arrowHandle = OS.gtk_arrow_new (arrow_type, OS.GTK_SHADOW_OUT); - if (arrowHandle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.TOGGLE: - handle = OS.gtk_toggle_button_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.CHECK: - handle = OS.gtk_check_button_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.RADIO: - /* - * Feature in GTK. In GTK, radio button must always be part of - * a radio button group. In a GTK radio group, one button is always - * selected. This means that it is not possible to have a single - * radio button that is unselected. This is necessary to allow - * applications to implement their own radio behavior or use radio - * buttons outside of radio groups. The fix is to create a hidden - * radio button for each radio button we create and add them - * to the same group. This allows the visible button to be - * unselected. - */ - groupHandle = OS.gtk_radio_button_new (0); - if (groupHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.g_object_ref (groupHandle); - OS.gtk_object_sink (groupHandle); - handle = OS.gtk_radio_button_new (OS.gtk_radio_button_get_group (groupHandle)); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.PUSH: - default: - handle = OS.gtk_button_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_DEFAULT); - break; - } - if ((style & SWT.ARROW) != 0) { - OS.gtk_container_add (handle, arrowHandle); - } else { - boxHandle = OS.gtk_hbox_new (false, 4); - if (boxHandle == 0) error (SWT.ERROR_NO_HANDLES); - labelHandle = OS.gtk_label_new_with_mnemonic (null); - if (labelHandle == 0) error (SWT.ERROR_NO_HANDLES); - imageHandle = OS.gtk_image_new (); - if (imageHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_container_add (handle, boxHandle); - OS.gtk_container_add (boxHandle, imageHandle); - OS.gtk_container_add (boxHandle, labelHandle); - } - OS.gtk_container_add (fixedHandle, handle); - - if ((style & SWT.ARROW) != 0) return; - _setAlignment (style & (SWT.LEFT | SWT.CENTER | SWT.RIGHT)); -} - -void createWidget (int index) { - super.createWidget (index); - text = ""; -} - -void deregister () { - super.deregister (); - if (boxHandle != 0) display.removeWidget (boxHandle); - if (labelHandle != 0) display.removeWidget (labelHandle); - if (imageHandle != 0) display.removeWidget (imageHandle); - if (arrowHandle != 0) display.removeWidget (arrowHandle); -} - -int /*long*/ fontHandle () { - if (labelHandle != 0) return labelHandle; - return super.fontHandle (); -} - -/** - * 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; -} - -/** - * Returns <code>true</code> if the receiver is grayed, - * and false otherwise. When the widget does not have - * the <code>CHECK</code> style, return false. - * - * @return the grayed state of the checkbox - * - * @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> - * - * @since 3.4 - */ -public boolean getGrayed () { - checkWidget(); - if ((style & SWT.CHECK) == 0) return false; - return grayed; -} - -/** - * 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; - return OS.gtk_toggle_button_get_active (handle); -} - -/** - * 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; -} - -int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ event) { - int /*long*/ result = super.gtk_button_press_event (widget, event); - if (result != 0) return result; - if ((style & SWT.RADIO) != 0) selected = getSelection (); - return result; -} - -int /*long*/ gtk_clicked (int /*long*/ widget) { - if ((style & SWT.RADIO) != 0) { - if ((parent.getStyle () & SWT.NO_RADIO_GROUP) != 0) { - setSelection (!selected); - } else { - selectRadio (); - } - } else { - if ((style & SWT.CHECK) != 0) { - if (grayed) { - if (OS.gtk_toggle_button_get_active (handle)) { - OS.gtk_toggle_button_set_inconsistent (handle, true); - } else { - OS.gtk_toggle_button_set_inconsistent (handle, false); - } - } - } - } - postEvent (SWT.Selection); - return 0; -} - -int /*long*/ gtk_focus_in_event (int /*long*/ widget, int /*long*/ event) { - int /*long*/ result = super.gtk_focus_in_event (widget, event); - // widget could be disposed at this point - if (handle == 0) return 0; - if ((style & SWT.PUSH) != 0 && OS.GTK_WIDGET_HAS_DEFAULT (handle)) { - Decorations menuShell = menuShell (); - menuShell.defaultButton = this; - } - return result; -} - -int /*long*/ gtk_focus_out_event (int /*long*/ widget, int /*long*/ event) { - int /*long*/ result = super.gtk_focus_out_event (widget, event); - // widget could be disposed at this point - if (handle == 0) return 0; - if ((style & SWT.PUSH) != 0 && !OS.GTK_WIDGET_HAS_DEFAULT (handle)) { - Decorations menuShell = menuShell (); - if (menuShell.defaultButton == this) { - menuShell.defaultButton = null; - } - } - return result; -} - -int /*long*/ gtk_key_press_event (int /*long*/ widget, int /*long*/ event) { - int /*long*/ result = super.gtk_key_press_event (widget, event); - if (result != 0) return result; - if ((style & SWT.RADIO) != 0) selected = getSelection (); - return result; -} - -void hookEvents () { - super.hookEvents(); - OS.g_signal_connect_closure (handle, OS.clicked, display.closures [CLICKED], false); - if (labelHandle != 0) { - OS.g_signal_connect_closure_by_id (labelHandle, display.signalIds [MNEMONIC_ACTIVATE], 0, display.closures [MNEMONIC_ACTIVATE], false); - } -} - -boolean isDescribedByLabel () { - return false; -} - -boolean mnemonicHit (char key) { - if (labelHandle == 0) return false; - boolean result = super.mnemonicHit (labelHandle, key); - if (result) setFocus (); - return result; -} - -boolean mnemonicMatch (char key) { - if (labelHandle == 0) return false; - return mnemonicMatch (labelHandle, key); -} - -void register () { - super.register (); - if (boxHandle != 0) display.addWidget (boxHandle, this); - if (labelHandle != 0) display.addWidget (labelHandle, this); - if (imageHandle != 0) display.addWidget (imageHandle, this); - if (arrowHandle != 0) display.addWidget (arrowHandle, this); -} - -void releaseHandle () { - super.releaseHandle (); - boxHandle = imageHandle = labelHandle = arrowHandle = 0; -} - -void releaseWidget () { - super.releaseWidget (); - if (groupHandle != 0) OS.g_object_unref (groupHandle); - groupHandle = 0; - if (imageList != null) imageList.dispose (); - imageList = null; - image = null; - text = null; -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is selected by the user. - * - * @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 resizeHandle (int width, int height) { - super.resizeHandle (width, height); - /* - * Feature in GTK, GtkCheckButton and GtkRadioButton allocate - * only the minimum size necessary for its child. This causes the child - * alignment to fail. The fix is to set the child size to the size - * of the button. - */ - if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { - OS.gtk_widget_set_size_request (boxHandle, width, -1); - } -} - -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 (); - _setAlignment (alignment); -} - -void _setAlignment (int alignment) { - 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); - int arrow_type = OS.GTK_ARROW_UP; - boolean isRTL = (style & SWT.RIGHT_TO_LEFT) != 0; - switch (alignment) { - case SWT.UP: arrow_type = OS.GTK_ARROW_UP; break; - case SWT.DOWN: arrow_type = OS.GTK_ARROW_DOWN; break; - case SWT.LEFT: arrow_type = isRTL ? OS.GTK_ARROW_RIGHT : OS.GTK_ARROW_LEFT; break; - case SWT.RIGHT: arrow_type = isRTL ? OS.GTK_ARROW_LEFT : OS.GTK_ARROW_RIGHT; break; - } - OS.gtk_arrow_set (arrowHandle, arrow_type, OS.GTK_SHADOW_OUT); - 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); - /* Alignment not honoured when image and text are visible */ - boolean bothVisible = OS.GTK_WIDGET_VISIBLE (labelHandle) && OS.GTK_WIDGET_VISIBLE (imageHandle); - if (bothVisible) { - if ((style & (SWT.RADIO | SWT.CHECK)) != 0) alignment = SWT.LEFT; - if ((style & (SWT.PUSH | SWT.TOGGLE)) != 0) alignment = SWT.CENTER; - } - if ((alignment & SWT.LEFT) != 0) { - if (bothVisible) { - OS.gtk_box_set_child_packing (boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_START); - OS.gtk_box_set_child_packing (boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_START); - } - OS.gtk_misc_set_alignment (labelHandle, 0.0f, 0.5f); - OS.gtk_label_set_justify (labelHandle, OS.GTK_JUSTIFY_LEFT); - OS.gtk_misc_set_alignment (imageHandle, 0.0f, 0.5f); - return; - } - if ((alignment & SWT.CENTER) != 0) { - if (bothVisible) { - OS.gtk_box_set_child_packing (boxHandle, labelHandle, true, true, 0, OS.GTK_PACK_END); - OS.gtk_box_set_child_packing (boxHandle, imageHandle, true, true, 0, OS.GTK_PACK_START); - OS.gtk_misc_set_alignment (labelHandle, 0f, 0.5f); - OS.gtk_misc_set_alignment (imageHandle, 1f, 0.5f); - } else { - OS.gtk_misc_set_alignment (labelHandle, 0.5f, 0.5f); - OS.gtk_label_set_justify (labelHandle, OS.GTK_JUSTIFY_CENTER); - OS.gtk_misc_set_alignment (imageHandle, 0.5f, 0.5f); - } - return; - } - if ((alignment & SWT.RIGHT) != 0) { - if (bothVisible) { - OS.gtk_box_set_child_packing (boxHandle, labelHandle, false, false, 0, OS.GTK_PACK_END); - OS.gtk_box_set_child_packing (boxHandle, imageHandle, false, false, 0, OS.GTK_PACK_END); - } - OS.gtk_misc_set_alignment (labelHandle, 1.0f, 0.5f); - OS.gtk_label_set_justify (labelHandle, OS.GTK_JUSTIFY_RIGHT); - OS.gtk_misc_set_alignment (imageHandle, 1.0f, 0.5f); - return; - } -} - -void setBackgroundColor (GdkColor color) { - super.setBackgroundColor (color); - setBackgroundColor(fixedHandle, color); - if (labelHandle != 0) setBackgroundColor(labelHandle, color); - if (imageHandle != 0) setBackgroundColor(imageHandle, color); -} - -void setFontDescription (int /*long*/ font) { - super.setFontDescription (font); - if (labelHandle != 0) OS.gtk_widget_modify_font (labelHandle, font); - if (imageHandle != 0) OS.gtk_widget_modify_font (imageHandle, font); -} - -boolean setRadioSelection (boolean value) { - if ((style & SWT.RADIO) == 0) return false; - if (getSelection () != value) { - setSelection (value); - postEvent (SWT.Selection); - } - return true; -} - -void setForegroundColor (GdkColor color) { - super.setForegroundColor (color); - setForegroundColor (fixedHandle, color); - if (labelHandle != 0) setForegroundColor (labelHandle, color); - if (imageHandle != 0) setForegroundColor (imageHandle, color); -} - -/** - * Sets the grayed state of the receiver. This state change - * only applies if the control was created with the SWT.CHECK - * style. - * - * @param grayed the new grayed 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> - * - * @since 3.4 - */ -public void setGrayed (boolean grayed) { - checkWidget(); - if ((style & SWT.CHECK) == 0) return; - this.grayed = grayed; - if (grayed && OS.gtk_toggle_button_get_active (handle)) { - OS.gtk_toggle_button_set_inconsistent (handle, true); - } else { - OS.gtk_toggle_button_set_inconsistent (handle, false); - } -} - -/** - * Sets the receiver's image to the argument, which may be - * <code>null</code> indicating that no image should be displayed. - * <p> - * Note that a Button can display an image and text simultaneously - * on Windows (starting with XP), GTK+ and OSX. On other platforms, - * a Button that has an image and text set into it will display the - * image or text that was set most recently. - * </p> - * @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 ((style & SWT.ARROW) != 0) return; - if (imageList != null) imageList.dispose (); - imageList = null; - if (image != null) { - if (image.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); - imageList = new ImageList (); - int imageIndex = imageList.add (image); - int /*long*/ pixbuf = imageList.getPixbuf (imageIndex); - OS.gtk_image_set_from_pixbuf (imageHandle, pixbuf); - if (text.length () == 0) OS.gtk_widget_hide (labelHandle); - OS.gtk_widget_show (imageHandle); - } else { - OS.gtk_image_set_from_pixbuf (imageHandle, 0); - OS.gtk_widget_show (labelHandle); - OS.gtk_widget_hide (imageHandle); - } - this.image = image; - _setAlignment (style); -} - -void setOrientation () { - super.setOrientation (); - if ((style & SWT.RIGHT_TO_LEFT) != 0) { - if (boxHandle != 0) OS.gtk_widget_set_direction (boxHandle, OS.GTK_TEXT_DIR_RTL); - if (labelHandle != 0) OS.gtk_widget_set_direction (labelHandle, OS.GTK_TEXT_DIR_RTL); - if (imageHandle != 0) OS.gtk_widget_set_direction (imageHandle, OS.GTK_TEXT_DIR_RTL); - if (arrowHandle != 0) { - switch (style & (SWT.LEFT | SWT.RIGHT)) { - case SWT.LEFT: OS.gtk_arrow_set (arrowHandle, OS.GTK_ARROW_RIGHT, OS.GTK_SHADOW_OUT); break; - case SWT.RIGHT: OS.gtk_arrow_set (arrowHandle, OS.GTK_ARROW_LEFT, OS.GTK_SHADOW_OUT); break; - } - } - } -} - -/** - * 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; - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CLICKED); - OS.gtk_toggle_button_set_active (handle, selected); - if ((style & SWT.CHECK) != 0) { - if (selected && grayed) { - OS.gtk_toggle_button_set_inconsistent (handle, true); - } else { - OS.gtk_toggle_button_set_inconsistent (handle, false); - } - } - if ((style & SWT.RADIO) != 0) OS.gtk_toggle_button_set_active (groupHandle, !selected); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CLICKED); -} - -/** - * 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 emphasized 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><p> - * Note that a Button can display an image and text simultaneously - * on Windows (starting with XP), GTK+ and OSX. On other platforms, - * a Button that has an image and text set into it will display the - * image or text that was set most recently. - * </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; - text = string; - char [] chars = fixMnemonic (string); - byte [] buffer = Converter.wcsToMbcs (null, chars, true); - OS.gtk_label_set_text_with_mnemonic (labelHandle, buffer); - if (image == null) OS.gtk_widget_hide (imageHandle); - OS.gtk_widget_show (labelHandle); - _setAlignment (style); -} - -void showWidget () { - super.showWidget (); - if (boxHandle != 0) OS.gtk_widget_show (boxHandle); - if (labelHandle != 0) OS.gtk_widget_show (labelHandle); - if (arrowHandle != 0) OS.gtk_widget_show (arrowHandle); -} - -int traversalCode (int key, GdkEventKey event) { - int code = super.traversalCode (key, event); - if ((style & SWT.ARROW) != 0) code &= ~(SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS); - if ((style & SWT.RADIO) != 0) code |= SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS; - return code; -} - -} |