Java Code Examples for org.eclipse.swt.widgets.Control#getData()

protected String[] getControlValue( Control control )
{
	if ( control instanceof Text )
	{
		return new String[]{
				( (Text) control ).getText( ),
				(String) control.getData( ExpressionButtonUtil.EXPR_TYPE )
		};
	}
	else if ( control instanceof Combo )
	{
		return new String[]{
				( (Combo) control ).getText( ),
				(String) control.getData( ExpressionButtonUtil.EXPR_TYPE )
		};
	}
	return null;
}
 

private void obfuscatedImage(Composite c, Image image) {
	if (c == null || c.isDisposed() || !c.isVisible()) {
		return;
	}
	Control[] children = c.getChildren();
	for (Control childControl : children) {
		if (!childControl.isVisible()) {
			continue;
		}
		ObfuscateImage oi = (ObfuscateImage) childControl.getData("ObfuscateImage");
		if (oi != null) {
			oi.obfuscatedImage(image);
			continue;
		}
		if (childControl instanceof Composite) {
			obfuscatedImage((Composite) childControl, image);
		}
	}
}
 

/**
 * Enable all widgets of a control
 *
 * @param control control to enable/disable
 * @param enable <code>true</code> to enable, <code>false</code> to disable
 */
public static void enableAllChildrenWidgets(final Control control) {
	if (control instanceof Composite) {
		for (final Control c : ((Composite) control).getChildren()) {
			enableAllChildrenWidgets(c);
		}
	}
	boolean enable = true;
	final Boolean previousState = (Boolean) control.getData(SWTGraphicUtil.class.toString() + "_enableState");
	if (previousState != null) {
		enable = previousState;
	}
	control.setEnabled(enable);
}
 

private static ExpressionButton getExpressionButton( Control control )
{
	Object button = control.getData( ExpressionButtonUtil.EXPR_BUTTON );
	if ( button instanceof ExpressionButton )
	{
		return ( (ExpressionButton) button );
	}
	return null;
}
 

public static IWorkbenchPartSite findSite(Control c) {
	while (c != null && !c.isDisposed()) {
		Object data= c.getData();
		if (data instanceof IWorkbenchPart)
			return ((IWorkbenchPart)data).getSite();
		c= c.getParent();
	}
	return null;
}
 

protected DropTarget findDropTarget(Control control) {
	Object object = control.getData(DND.DROP_TARGET_KEY);
	if (object instanceof DropTarget) {
		return (DropTarget) object;
	}
	return null;
}
 

public static void
removeCopyToClipMenu(
Control		control )
{
 MouseAdapter ml = (MouseAdapter)control.getData( MOUSE_LISTENER_KEY );
 
 if ( ml != null ){
 
  control.removeMouseListener( ml );
 }
}
 

public static BaseMdiEntry getEntryFromSkinObject(PluginUISWTSkinObject pluginSkinObject) {
	if (pluginSkinObject instanceof SWTSkinObject) {
		Control control = ((SWTSkinObject) pluginSkinObject).getControl();
		while (control != null && !control.isDisposed()) {
			Object entry = control.getData("BaseMDIEntry");
			if (entry instanceof BaseMdiEntry) {
				BaseMdiEntry mdiEntry = (BaseMdiEntry) entry;
				return mdiEntry;
			}
			control = control.getParent();
		}
	}
	return null;
}
 

/**
 * <p>
 * Sets the prompt text on <code>control</code>
 * </p>
 *
 * @param promptText
 * @param textComponent
 * @exception IllegalArgumentException if the control is not a Text Box, a
 *                Combo Box, a StyledText or a CCombo
 */
public static void setPrompt(final String promptText, final Control control) {
	checkControl(control);

	final boolean alreadySet = control.getData(SET) == null ? false : (Boolean) control.getData(SET);
	if (alreadySet) {
		throw new IllegalArgumentException("A prompt has already been set on this control !");
	}
	control.setData(PROMPT, promptText);

	final BaseFocusControlListener focusControlListener = FocusControlListenerFactory.getFocusControlListenerFor(control);
	control.addFocusListener(focusControlListener);
	control.addControlListener(focusControlListener);
	control.setData(SET, true);
}
 

public static ExpressionButton getExpressionButton( Control control )
{
	Object button = control.getData( ExpressionButtonUtil.EXPR_BUTTON );
	if ( button instanceof ExpressionButton )
	{
		return ( (ExpressionButton) button );
	}
	return null;
}
 

/** 
 * @see org.eclipse.jface.viewers.AbstractTreeViewer#internalInitializeTree(org.eclipse.swt.widgets.Control)
 */
protected void internalInitializeTree(Control widget) {
	if (contentProviderIsLazy) {
		if (widget instanceof CTreeCombo && widget.getData() != null) {
			virtualLazyUpdateChildCount(widget, 0);
			return;
		}
	}
	super.internalInitializeTree(tree);
}
 

/** Returns the header object for the given header label */
private Object getHeader( Control label )
{
	return label.getData( KEY_HEADER );
}
 

public static BrowserWrapper
create(
	Composite		composite,
	int				style )
{
	try{
		Map<String,Object> properties = new HashMap<>();
				
		for ( BrowserProvider provider: providers ){
			
			try{
				BrowserWrapper browser = provider.create( composite, style, properties);
				
				if ( browser != null ){
					
					return( browser );
				}
				
			}catch( Throwable e ){
				
				Debug.out( e );
			}
			
			Utils.disposeComposite( composite, false );
		}
		
		return( new BrowserWrapperSWT( composite, style ));

	}catch( SWTError error ){
		Control[] children = composite.getChildren();
		for (Control child : children) {
			if ( child.getData( BROWSER_KEY ) != null ){
				try {
					child.dispose();
				} catch (Throwable t) {

				}
			}
		}

		return( new BrowserWrapperFake( composite, style, error ));
	}
}
 

public static void
 addCopyToClipMenu(
final Control				control,
final copyToClipProvider	provider )
 {
  MouseAdapter ml = (MouseAdapter)control.getData( MOUSE_LISTENER_KEY );
  
  if ( ml != null ){
  
	  control.removeMouseListener( ml );
  }
  
  ml =
	  new MouseAdapter()
	  {
		  @Override
		  public void
		  mouseDown(
			 MouseEvent e )
		  {
			  if ( control.isDisposed()){

				  return;
			  }

			  final String	text = provider.getText();

			  if ( control.getMenu() != null || text == null || text.length() == 0 ){

				  return;
			  }

			  if (!(e.button == 3 || (e.button == 1 && e.stateMask == SWT.CONTROL))){

				  return;
			  }

			  final Menu menu = new Menu(control.getShell(),SWT.POP_UP);

			  MenuItem   item = new MenuItem( menu,SWT.NONE );

			  item.setData( MENU_ITEM_KEY, "" );

			  String	msg_text_id;

			  if ( provider instanceof copyToClipProvider2 ){

				  msg_text_id = ((copyToClipProvider2)provider).getMenuResource();

			  }else{

				  msg_text_id = "label.copy.to.clipboard";
			  }

			  item.setText( MessageText.getString( msg_text_id ));

			  item.addSelectionListener(
					  new SelectionAdapter()
					  {
						  @Override
						  public void
						  widgetSelected(
								  SelectionEvent arg0)
						  {
							  new Clipboard(control.getDisplay()).setContents(new Object[] {text}, new Transfer[] {TextTransfer.getInstance()});
						  }
					  });

			  control.setMenu( menu );

			  menu.addMenuListener(
					  new MenuAdapter()
					  {
						  @Override
						  public void
						  menuHidden(
								  MenuEvent arg0 )
						  {
							  if ( control.getMenu() == menu ){

								  control.setMenu( null );
							  }
						  }
					  });

			  menu.setVisible( true );
		  }
	  };
  
  control.setData( MOUSE_LISTENER_KEY, ml );
  
  control.addMouseListener( ml );
 }
 

/** Returns the content area for the given header label */
private ScrolledComposite getContentArea( Control label )
{
	return (ScrolledComposite) label.getData( KEY_CONTENT );
}
 

private String getSubtypeFromButton( Control button )
{
	return (String) button.getData( );
}
 

/**
 * Get the prompt text of <code>control</code>.
 *
 * @param control
 * @return the prompt text
 */
public static String getPrompt(final Control control) {
	return (String) control.getData(PROMPT);
}
 

/**
 * Get the foreground color of the prompt text. If no color has been set,
 * the <code>GREY</code> color will be returned.
 *
 * @param color
 * @return the color of the prompt text or <code>GREY</code>if none is set
 */
public static Color getForeground(final Control control) {
	final Color temp = (Color) control.getData(FOREGROUND);
	return temp == null ? control.getForeground() : temp;

}
 

/**
 * Returns the font style of the prompt text, which is a OR mix of
 * SWT.ITALIC, SWT.NONE or SWT.BOLD
 *
 * @param control
 * @return font style of the prompt text
 */
public static int getFontStyle(final Control control) {
	final Integer temp = (Integer) control.getData(STYLE);
	return temp == null ? SWT.ITALIC : temp;

}
 

/**
 * Get the {@link FocusBehavior} of <code>control</code>.
 *
 * @param control
 * @return the {@link FocusBehavior} or {@link FocusBehavior#HIDE_PROMPT} if
 *         none is set
 */
public static FocusBehavior getFocusBehavior(final Control control) {
	final FocusBehavior temp = (FocusBehavior) control.getData(BEHAVIOR);
	return temp == null ? FocusBehavior.HIDE_PROMPT : temp;

}