/*******************************************************************************
* Copyright (c) 2000, 2011 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>
* <p>
* When the <code>SWT.RADIO</code> style bit is set, the <code>widgetSelected</code> method is
* also called when the receiver loses selection because another item in the same radio group
* was selected by the user. During <code>widgetSelected</code> the application can use
* <code>getSelection()</code> to determine the current selected state of the receiver.
* </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. If the new value is <code>SWT.DEFAULT</code>,
* the width is a fixed-width area whose amount is determined by the platform.
* If the new value is 0 a vertical or horizontal line will be drawn, depending
* on the setting of the corresponding style bit (<code>SWT.VERTICAL</code> or
* <code>SWT.HORIZONTAL</code>). If the new value is <code>SWT.SEPARATOR_FILL</code>
* a variable-width space is inserted that acts as a spring between the two adjoining
* items which will push them out to the extent of the containing ToolBar.
*
*
* @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);
}
}