| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 represents a button in a tool bar. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN |
| * may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#toolbar">ToolBar, ToolItem snippets</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 ToolItem extends Item { |
| int imageHandle, textHandle, arrowHandle; |
| ToolBar parent; |
| Control control; |
| String toolTipText; |
| Image disabledImage, hotImage; |
| boolean ignoreSelection; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</code>) and a style value |
| * describing its behavior and appearance. The item is added |
| * to the end of the items maintained by its parent. |
| * <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#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, parent.getItemCount ()); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</code>), a style value |
| * describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <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 |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style, int index) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, index); |
| } |
| |
| /** |
| * 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> |
| * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool, |
| * the event object detail field contains the value <code>SWT.ARROW</code>. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the control is selected by the user, |
| * |
| * @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) { |
| return checkBits (style, SWT.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.DROP_DOWN, 0); |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| int createArrow () { |
| int geometry = OS.gcnew_StreamGeometry (); |
| int context = OS.StreamGeometry_Open (geometry); |
| int start = OS.gcnew_Point (0, 1); |
| int point = OS.gcnew_Point (3, 4); |
| int end = OS.gcnew_Point (6, 1); |
| 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, 0, 0, 0); |
| 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.GCHandle_Free (padding); |
| OS.GCHandle_Free (start); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (end); |
| OS.GCHandle_Free (brush); |
| OS.GCHandle_Free (context); |
| OS.GCHandle_Free (geometry); |
| return path; |
| } |
| |
| void createHandle () { |
| if ((style & SWT.SEPARATOR) != 0) { |
| handle = OS.gcnew_Separator (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| return; |
| } |
| int bits = SWT.RADIO | SWT.CHECK | SWT.PUSH | SWT.DROP_DOWN; |
| switch (style & bits) { |
| 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.DROP_DOWN: |
| handle = OS.gcnew_Button(); |
| 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; |
| } |
| OS.ToolBar_SetOverflowMode (handle, OS.OverflowMode_Never); |
| 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); |
| OS.FrameworkElement_HorizontalAlignment (textHandle, OS.HorizontalAlignment_Center); |
| int panel = OS.gcnew_StackPanel (); |
| if (panel == 0) error (SWT.ERROR_NO_HANDLES); |
| int orientation = (parent.style & SWT.RIGHT) != 0 ? OS.Orientation_Horizontal : OS.Orientation_Vertical; |
| OS.StackPanel_Orientation (panel, orientation); |
| 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); |
| if ((style & SWT.DROP_DOWN) != 0) { |
| arrowHandle = createArrow (); |
| if ((parent.style & SWT.RIGHT) != 0) { |
| OS.UIElementCollection_Add (children, arrowHandle); |
| } else { |
| int newPanel = OS.gcnew_StackPanel (); |
| OS.StackPanel_Orientation (newPanel, OS.Orientation_Horizontal); |
| int horizontalChildren = OS.Panel_Children (newPanel); |
| OS.UIElementCollection_Add (horizontalChildren, panel); |
| OS.UIElementCollection_Add (horizontalChildren, arrowHandle); |
| OS.GCHandle_Free (horizontalChildren); |
| OS.GCHandle_Free (panel); |
| panel = newPanel; |
| } |
| } |
| OS.ContentControl_Content (handle, panel); |
| OS.GCHandle_Free (children); |
| OS.GCHandle_Free (panel); |
| int margin = OS.gcnew_Thickness (0, 0, 0, 0); |
| OS.Control_Padding (handle, margin); |
| OS.GCHandle_Free (margin); |
| } |
| |
| void deregister () { |
| display.removeWidget (handle); |
| } |
| |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent. |
| * |
| * @return the receiver's bounding rectangle |
| * |
| * @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 Rectangle getBounds () { |
| checkWidget (); |
| int parentHandle = parent.handle; |
| int topHandle = control == null ? topHandle () : control.topHandle (); |
| int point = OS.gcnew_Point (0, 0); |
| if (point == 0) error (SWT.ERROR_NO_HANDLES); |
| int location = OS.UIElement_TranslatePoint (topHandle, point, parentHandle); |
| int x = (int) OS.Point_X (location); |
| int y = (int) OS.Point_Y (location); |
| OS.GCHandle_Free (point); |
| OS.GCHandle_Free (location); |
| int width = (int) OS.FrameworkElement_ActualWidth (topHandle); |
| int height = (int) OS.FrameworkElement_ActualHeight (topHandle); |
| return new Rectangle (x, y, width, height); |
| } |
| |
| /** |
| * Returns the control that is used to fill the bounds of |
| * the item when the item is a <code>SEPARATOR</code>. |
| * |
| * @return the control |
| * |
| * @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 Control getControl () { |
| checkWidget (); |
| return control; |
| } |
| |
| /** |
| * Returns the receiver's disabled image if it has one, or null |
| * if it does not. |
| * <p> |
| * The disabled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @return the receiver's disabled 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 getDisabledImage () { |
| checkWidget (); |
| return disabledImage; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @return the receiver's enabled 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> |
| * |
| * @see #isEnabled |
| */ |
| public boolean getEnabled () { |
| checkWidget (); |
| return OS.UIElement_IsEnabled (handle); |
| } |
| |
| /** |
| * Returns the receiver's hot image if it has one, or null |
| * if it does not. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @return the receiver's hot 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 getHotImage () { |
| checkWidget (); |
| return hotImage; |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>ToolBar</code>. |
| * |
| * @return the receiver's parent |
| * |
| * @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 ToolBar getParent () { |
| checkWidget (); |
| return parent; |
| } |
| |
| /** |
| * 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 (which some platforms draw as a |
| * pushed in button). If the receiver is of any other type, this method |
| * returns false. |
| * </p> |
| * |
| * @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)) == 0) return false; |
| return OS.ToggleButton_IsChecked(handle); |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has not been set. |
| * |
| * @return the receiver's tool tip 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 getToolTipText () { |
| checkWidget (); |
| return toolTipText; |
| } |
| |
| Control getWidgetControl () { |
| return parent; |
| } |
| |
| /** |
| * Gets the width of the receiver. |
| * |
| * @return the width |
| * |
| * @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 getWidth () { |
| checkWidget (); |
| return (int) OS.FrameworkElement_ActualWidth (topHandle ()); |
| } |
| |
| void HandleChecked (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| postEvent (SWT.Selection); |
| } |
| |
| void HandleClick (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| Event event = new Event (); |
| if ((style & SWT.DROP_DOWN) != 0) { |
| int mousePos = OS.Mouse_GetPosition (handle); |
| int zero = OS.gcnew_Point (0, OS.FrameworkElement_ActualHeight (topHandle ())); |
| int arrowPos = OS.UIElement_TranslatePoint (arrowHandle, zero, handle); |
| if (OS.Point_X (mousePos) > OS.Point_X (arrowPos)) { |
| event.detail = SWT.ARROW; |
| int location = OS.UIElement_TranslatePoint (handle, zero, parent.handle); |
| event.x = (int) OS.Point_X (location); |
| event.y = (int) OS.Point_Y (location); |
| OS.GCHandle_Free (location); |
| } |
| OS.GCHandle_Free (arrowPos); |
| OS.GCHandle_Free (zero); |
| OS.GCHandle_Free (mousePos); |
| } |
| postEvent (SWT.Selection, event); |
| } |
| |
| void HandleUnchecked (int sender, int e) { |
| if (!checkEvent (e)) return; |
| if (ignoreSelection) return; |
| postEvent (SWT.Selection); |
| } |
| |
| void HandleMouseEnter (int sender, int e) { |
| if (!checkEvent (e)) return; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| void HandleMouseLeave (int sender, int e) { |
| if (!checkEvent (e)) return; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| void hookEvents() { |
| super.hookEvents (); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if ((style & (SWT.RADIO | SWT.CHECK)) != 0) { |
| int handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleChecked"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.ToggleButton_Checked (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_RoutedEventHandler (jniRef, "HandleUnchecked"); |
| 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); |
| } |
| int handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseEnter"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.UIElement_MouseEnter (handle, handler); |
| OS.GCHandle_Free (handler); |
| handler = OS.gcnew_MouseEventHandler (jniRef, "HandleMouseLeave"); |
| if (handler == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.UIElement_MouseLeave (handle, handler); |
| OS.GCHandle_Free (handler); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled and all |
| * of the receiver's ancestors are enabled, and <code>false</code> |
| * otherwise. A disabled control is typically not selectable from the |
| * user interface and draws with an inactive or "grayed" look. |
| * |
| * @return the receiver's enabled 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> |
| * |
| * @see #getEnabled |
| */ |
| public boolean isEnabled () { |
| checkWidget (); |
| return getEnabled () && parent.isEnabled (); |
| } |
| |
| void register () { |
| display.addWidget (handle, this); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| control = null; |
| toolTipText = null; |
| image = disabledImage = hotImage = null; |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| if (handle != 0) OS.GCHandle_Free (handle); |
| handle = 0; |
| if (imageHandle != 0) { |
| OS.GCHandle_Free (imageHandle); |
| imageHandle = 0; |
| } |
| if (textHandle != 0) { |
| OS.GCHandle_Free (textHandle); |
| textHandle = 0; |
| } |
| if (arrowHandle != 0) { |
| OS.GCHandle_Free (arrowHandle); |
| arrowHandle = 0; |
| } |
| parent = 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); |
| } |
| |
| /** |
| * Sets the control that is used to fill the bounds of |
| * the item when the item is a <code>SEPARATOR</code>. |
| * |
| * @param control the new control |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</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 setControl (Control control) { |
| checkWidget (); |
| if (control != null) { |
| if (control.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.parent != parent) error (SWT.ERROR_INVALID_PARENT); |
| } |
| if ((style & SWT.SEPARATOR) == 0) return; |
| if (control == null) { |
| int property = OS.Control_BackgroundProperty (); |
| OS.DependencyObject_ClearValue (handle, property); |
| OS.GCHandle_Free (property); |
| Control oldControl = this.control; |
| if (oldControl != null && !oldControl.isDisposed ()) OS.Panel_SetZIndex (oldControl.handle, 0); |
| } else { |
| int brush = OS.Brushes_Transparent (); |
| OS.Control_Background (handle, brush); |
| OS.GCHandle_Free (brush); |
| int pt = OS.gcnew_Point (0, 0); |
| if (pt == 0) error (SWT.ERROR_NO_HANDLES); |
| int loc = OS.UIElement_TranslatePoint (handle, pt, parent.parentingHandle); |
| OS.GCHandle_Free (pt); |
| OS.Canvas_SetLeft (control.handle, OS.Point_X (loc)); |
| OS.Canvas_SetTop (control.handle, OS.Point_Y (loc)); |
| OS.Panel_SetZIndex (control.handle, parent.childCount); |
| OS.GCHandle_Free (loc); |
| } |
| this.control = control; |
| } |
| |
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. |
| * <p> |
| * A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * </p> |
| * |
| * @param enabled the new enabled 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 setEnabled (boolean enabled) { |
| checkWidget (); |
| OS.UIElement_IsEnabled (handle, enabled); |
| updateImages (enabled && parent.getEnabled ()); |
| if (arrowHandle != 0) { |
| OS.UIElement_Opacity (arrowHandle, enabled ? 1 : 0.4); |
| } |
| } |
| |
| /** |
| * Sets the receiver's disabled image to the argument, which may be |
| * null indicating that no disabled image should be displayed. |
| * <p> |
| * The disabled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @param image the disabled 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 setDisabledImage (Image image) { |
| checkWidget (); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| disabledImage = image; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| /** |
| * Sets the receiver's hot image to the argument, which may be |
| * null indicating that no hot image should be displayed. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @param image the hot 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 setHotImage (Image image) { |
| checkWidget (); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| hotImage = image; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| public void setImage (Image image) { |
| checkWidget (); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| super.setImage (image); |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| /** |
| * Sets the selection state of the receiver. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked (which some platforms draw as a |
| * pushed in button). |
| * </p> |
| * |
| * @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)) == 0) return; |
| ignoreSelection = true; |
| OS.ToggleButton_IsChecked (handle, selected); |
| ignoreSelection = false; |
| } |
| |
| /** |
| * Sets the receiver's text. The string may include |
| * the mnemonic character. |
| * </p> |
| * <p> |
| * Mnemonics are indicated by an '&' that causes the next |
| * character to be the mnemonic. When the user presses a |
| * key sequence that matches the mnemonic, a selection |
| * event occurs. On most platforms, the mnemonic appears |
| * underlined but may be emphasised in a platform specific |
| * manner. The mnemonic indicator character '&' can be |
| * escaped by doubling it in the string, causing a single |
| * '&' to be displayed. |
| * </p> |
| * |
| * @param string the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setText (String string) { |
| checkWidget (); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (string.equals (text)) return; |
| super.setText (string); |
| int strPtr = createDotNetString (string, 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 = (parent.style & SWT.RIGHT) != 0 ? OS.gcnew_Thickness (0, 0, spacing, 0) : OS.gcnew_Thickness (0, 0, 0, spacing); |
| OS.FrameworkElement_Margin (imageHandle, margin); |
| OS.GCHandle_Free (margin); |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that the default tool tip for the |
| * control will be shown. For a control that has a default |
| * tool tip, such as the Tree control on Windows, setting |
| * the tool tip text to an empty string replaces the default, |
| * causing no tool tip text to be shown. |
| * <p> |
| * The mnemonic indicator (character '&') is not displayed in a tool tip. |
| * To display a single '&' in the tool tip, the character '&' can be |
| * escaped by doubling it in the string. |
| * </p> |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @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 setToolTipText (String string) { |
| checkWidget (); |
| toolTipText = string; |
| if (string != null && string.length() == 0) string = null; |
| int strPtr = createDotNetString (string, false); |
| OS.FrameworkElement_ToolTip (handle, strPtr); |
| if (strPtr != 0) OS.GCHandle_Free (strPtr); |
| } |
| |
| /** |
| * Sets the width of the receiver, for <code>SEPARATOR</code> ToolItems. |
| * |
| * @param width the new width |
| * |
| * @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 setWidth (int width) { |
| checkWidget (); |
| int controlHandle = control != null ? control.handle : handle; |
| OS.FrameworkElement_Width (controlHandle, width); |
| } |
| |
| void updateImages (boolean enabled) { |
| if ((style & SWT.SEPARATOR) != 0) return; |
| Image next = image; |
| if (image != null && !enabled && disabledImage != null) next = disabledImage; |
| if (image != null && enabled && hotImage != null && OS.UIElement_IsMouseOver (handle)) next = hotImage; |
| OS.Image_Source (imageHandle, next != null ? next.handle : 0); |
| OS.UIElement_Visibility (imageHandle, next != null ? OS.Visibility_Visible : OS.Visibility_Collapsed); |
| OS.UIElement_Visibility (textHandle, next != null && text.length () == 0 ? OS.Visibility_Collapsed : OS.Visibility_Visible); |
| int spacing = next != null && text.length () != 0 ? 3 : 0; |
| int margin = (parent.style & SWT.RIGHT) != 0 ? OS.gcnew_Thickness (0, 0, spacing, 0) : OS.gcnew_Thickness (0, 0, 0, spacing); |
| if (margin == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.FrameworkElement_Margin (imageHandle, margin); |
| OS.GCHandle_Free (margin); |
| } |
| } |