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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Button.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Button.java | 652 |
1 files changed, 0 insertions, 652 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Button.java b/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Button.java deleted file mode 100644 index 99237de68e..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/wpf/org/eclipse/swt/widgets/Button.java +++ /dev/null @@ -1,652 +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.wpf.*; -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 { - String text = ""; - Image image; - int textHandle, imageHandle; - boolean ignoreSelection, grayed; - -/** - * 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)); -} - -/** - * 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); -} - -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; -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - Point size = computeSize (handle, wHint, hHint, changed); - if ((style & SWT.ARROW) == 0) { - int border = getBorderWidth (); - size.x += border * 2; - size.y += border * 2; - } - return size; -} - -void createArrow () { - int geometry = OS.gcnew_StreamGeometry (); - int context = OS.StreamGeometry_Open (geometry); - int start = 0, point = 0, end = 0; - int mask = SWT.RIGHT | SWT.LEFT | SWT.DOWN | SWT.UP; - switch (style & mask) { - case SWT.RIGHT: - start = OS.gcnew_Point (1, 0); - point = OS.gcnew_Point (4, 3); - end = OS.gcnew_Point (1, 6); - break; - case SWT.LEFT: - start = OS.gcnew_Point (4, 1); - point = OS.gcnew_Point (1, 3); - end = OS.gcnew_Point (4, 6); - break; - case SWT.DOWN: - start = OS.gcnew_Point (0, 1); - point = OS.gcnew_Point (3, 4); - end = OS.gcnew_Point (6, 1); - break; - case SWT.UP: - start = OS.gcnew_Point (0, 4); - point = OS.gcnew_Point (3, 1); - end = OS.gcnew_Point (6, 4); - break; - } - OS.StreamGeometryContext_BeginFigure (context, start, true, true); - OS.StreamGeometryContext_LineTo (context, point, true, true); - OS.StreamGeometryContext_LineTo (context, end, true, true); - OS.StreamGeometryContext_Close (context); - int path = OS.gcnew_Path (); - OS.Path_Data (path, geometry); - int padding = OS.gcnew_Thickness (3, 3, 3, 3); - OS.FrameworkElement_Margin (path, padding); - int brush = OS.Brushes_Black (); - OS.Path_Fill (path, brush); - OS.FrameworkElement_Width (path, 6); - OS.FrameworkElement_Height (path, 6); - OS.FrameworkElement_HorizontalAlignment (path, OS.HorizontalAlignment_Center); - OS.FrameworkElement_VerticalAlignment (path, OS.VerticalAlignment_Center); - OS.ContentControl_Content (handle, path); - OS.GCHandle_Free (padding); - OS.GCHandle_Free (start); - OS.GCHandle_Free (point); - OS.GCHandle_Free (end); - OS.GCHandle_Free (brush); - OS.GCHandle_Free (path); - OS.GCHandle_Free (context); - OS.GCHandle_Free (geometry); -} - -void createHandle () { - if ((style & SWT.PUSH) == 0) state |= THEME_BACKGROUND; - int bits = SWT.TOGGLE | SWT.ARROW | SWT.PUSH | SWT.RADIO | SWT.CHECK; - switch (style & bits) { - case SWT.TOGGLE: - handle = OS.gcnew_ToggleButton (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.ARROW: - handle = OS.gcnew_Button (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - createArrow (); - break; - case SWT.RADIO: - handle = OS.gcnew_RadioButton (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.CHECK: - handle = OS.gcnew_CheckBox (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - case SWT.PUSH: - default: - handle = OS.gcnew_Button (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - break; - } - if ((style & SWT.ARROW) != 0) return; - int value = OS.HorizontalAlignment_Left; - if ((style & SWT.CENTER) != 0) value = OS.HorizontalAlignment_Center; - if ((style & SWT.RIGHT) != 0) value = OS.HorizontalAlignment_Right; - OS.Control_HorizontalContentAlignment (handle, value); - imageHandle = OS.gcnew_Image (); - if (imageHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.Image_Stretch (imageHandle, OS.Stretch_None); - OS.UIElement_Visibility (imageHandle, OS.Visibility_Collapsed); - textHandle = OS.gcnew_AccessText (); - if (textHandle == 0) error (SWT.ERROR_NO_HANDLES); - OS.FrameworkElement_VerticalAlignment (textHandle, OS.VerticalAlignment_Center); - int panel = OS.gcnew_StackPanel (); - if (panel == 0) error (SWT.ERROR_NO_HANDLES); - OS.StackPanel_Orientation (panel, OS.Orientation_Horizontal); - int thickness = OS.gcnew_Thickness (1, 1, 1, 1); - if (thickness == 0) error (SWT.ERROR_NO_HANDLES); - OS.FrameworkElement_Margin (panel, thickness); - OS.GCHandle_Free(thickness); - int children = OS.Panel_Children (panel); - OS.UIElementCollection_Add (children, imageHandle); - OS.UIElementCollection_Add (children, textHandle); - OS.ContentControl_Content (handle, panel); - OS.GCHandle_Free (children); - OS.GCHandle_Free (panel); -} - -int defaultBackground () { - if ((style & SWT.PUSH) == 0) return OS.SystemColors_ControlColor; - return 0; -} - -/** - * 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; - if ((style & SWT.CHECK) != 0 && grayed) { - int property = OS.ToggleButton_IsCheckedProperty(); - int value = OS.DependencyObject_GetValue(handle, property); - OS.GCHandle_Free(property); - if (value == 0) return true; - OS.GCHandle_Free(value); - } - return OS.ToggleButton_IsChecked (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; -} - -void HandleClick (int sender, int e) { - if (!checkEvent (e)) return; - if ((style & SWT.CHECK) != 0) { - if (grayed) { - if (OS.ToggleButton_IsChecked (handle)) { - ignoreSelection = true; - OS.ToggleButton_IsCheckedNullSetter (handle); - ignoreSelection = false; - } - } - } - if (!ignoreSelection) postEvent (SWT.Selection); -} - -void hookEvents () { - super.hookEvents (); - if ((style & (SWT.TOGGLE | SWT.RADIO | SWT.CHECK)) != 0) { - int handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleClick"); - if (handler == 0) error (SWT.ERROR_NO_HANDLES); - OS.ToggleButton_Checked (handle, handler); - OS.GCHandle_Free (handler); - handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleClick"); - if (handler == 0) error (SWT.ERROR_NO_HANDLES); - OS.ToggleButton_Unchecked (handle, handler); - OS.GCHandle_Free (handler); - } else { - int handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleClick"); - if (handler == 0) error (SWT.ERROR_NO_HANDLES); - OS.ButtonBase_Click (handle, handler); - OS.GCHandle_Free (handler); - } -} - -boolean mnemonicHit (char ch) { - //TODO - return false; -} - -boolean mnemonicMatch (char key) { - return super.mnemonicMatch (textHandle, key); -} - -void releaseHandle() { - super.releaseHandle (); - if (textHandle != 0) OS.GCHandle_Free (textHandle); - textHandle = 0; - if (imageHandle !=0 )OS.GCHandle_Free (imageHandle); - imageHandle = 0; -} - -void releaseWidget () { - super.releaseWidget (); - text = null; - image = 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); -} - -/** - * 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); - createArrow (); - 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 value = OS.HorizontalAlignment_Left; - if ((style & SWT.CENTER) != 0) value = OS.HorizontalAlignment_Center; - if ((style & SWT.RIGHT) != 0) value = OS.HorizontalAlignment_Right; - OS.Control_HorizontalContentAlignment (handle, value); -} - -/** - * 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; - boolean checked = getSelection(); - this.grayed = grayed; - ignoreSelection = true; - if (checked){ - if (grayed) { - OS.ToggleButton_IsCheckedNullSetter(handle); - } else { - OS.ToggleButton_IsChecked(handle, true); - } - } - setSelection (checked); - ignoreSelection = false; -} - -void setDefault (boolean value) { - if ((style & SWT.PUSH) == 0) return; - OS.Button_IsDefault (handle, value); -} - -/** - * 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 (image != null && image.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); - if ((style & SWT.ARROW) != 0) return; - this.image = image; - OS.Image_Source (imageHandle, image != null ? image.handle : 0); - OS.UIElement_Visibility (imageHandle, image != null ? OS.Visibility_Visible : OS.Visibility_Collapsed); - OS.UIElement_Visibility (textHandle, image != null && text.length () == 0 ? OS.Visibility_Collapsed : OS.Visibility_Visible); - int spacing = image != null && text.length ()!= 0 ? 3 : 0; - int margin = OS.gcnew_Thickness (0, 0, spacing, 0); - if (margin == 0) error (SWT.ERROR_NO_HANDLES); - OS.FrameworkElement_Margin (imageHandle, margin); - OS.GCHandle_Free (margin); -} - -/** - * 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; - ignoreSelection = true; - if ((style & SWT.CHECK) != 0 && grayed) { - OS.ToggleButton_IsCheckedNullSetter (handle); - } else { - OS.ToggleButton_IsChecked (handle, selected); - } - ignoreSelection = false; -} - -/** - * 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; - if (string.equals (text)) return; - text = string; - int strPtr = createDotNetString (text, true); - if (strPtr == 0) error (SWT.ERROR_NO_HANDLES); - OS.AccessText_Text (textHandle, strPtr); - OS.GCHandle_Free (strPtr); - OS.UIElement_Visibility (textHandle, string.length () == 0 && image != null ? OS.Visibility_Collapsed : OS.Visibility_Visible); - int spacing = image != null && text.length () != 0 ? 3 : 0; - int margin = OS.gcnew_Thickness (0, 0, spacing, 0); - if (margin == 0) error (SWT.ERROR_NO_HANDLES); - OS.FrameworkElement_Margin (imageHandle, margin); - OS.GCHandle_Free (margin); -} - -int traversalCode (int key, int 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; -} - -} |