Java Code Examples for org.eclipse.swt.graphics.Region#add()

Region createRoundedTopRegion(int xOffset, int yOffset, int width, int height)
{
    Region reg = new Region(getDisplay());
    reg.add(xOffset, yOffset, width, height);
    reg.subtract(xOffset + 0, yOffset + 0, 5, 1);
    reg.subtract(xOffset + 0, yOffset + 1, 3, 1);
    reg.subtract(xOffset + 0, yOffset + 2, 2, 1);
    reg.subtract(xOffset + 0, yOffset + 3, 1, 1);
    reg.subtract(xOffset + 0, yOffset + 4, 1, 1);

    reg.subtract(xOffset + width - 5, yOffset + 0, 5, 1);
    reg.subtract(xOffset + width - 3, yOffset + 1, 3, 1);
    reg.subtract(xOffset + width - 2, yOffset + 2, 2, 1);
    reg.subtract(xOffset + width - 1, yOffset + 3, 1, 1);
    reg.subtract(xOffset + width - 1, yOffset + 4, 1, 1);
    
    return reg;
}
 

public void setClip( ClipRenderEvent cre )
{
	final Location[] loa = cre.getVertices( );

	if ( loa == null )
	{
		_gc.setClipping( (Region) null );
	}
	else
	{
		Region rgClipping = new Region( );
		rgClipping.add( getCoordinatesAsInts( loa,
				TRUNCATE,
				dTranslateX,
				dTranslateY,
				dScale ) );
		_gc.setClipping( rgClipping );
		rgClipping.dispose( );
	}
}
 

/**
 * RegionAction constructor taking a polygon to define the region
 * 
 * @param oSource
 *            StructureSource
 * @param loa
 *            Polygon points
 * @param ac
 *            Action
 * @param dTranslateX
 *            X Translation to apply on polygon coordinates
 * @param dTranslateY
 *            Y Translation to apply on polygon coordinates
 * @param dScale
 *            Scale to apply on polygon coordinates
 * @param clipping
 *            Clipping area, points outside it will be clipped
 */
RegionAction( StructureSource oSource, Location[] loa, Action ac,
		double dTranslateX, double dTranslateY, double dScale,
		Region clipping )
{
	_oSource = oSource;
	final int[] i2a = SwtRendererImpl.getCoordinatesAsInts( loa,
			SwtRendererImpl.TRUNCATE,
			dTranslateX,
			dTranslateY,
			dScale );
	Region sh = new Region( );
	sh.add( i2a );
	if ( clipping != null )
	{
		sh.intersect( clipping );
	}
	_ac = ac;

	this.region = sh;
}
 

/**
 * This constructor supports shape definition via a rectangle.
 * 
 * @param oSource
 *            StructureSource
 * @param bo
 *            Rectangle
 * @param ac
 *            Action
 * @param dTranslateX
 *            X translation to apply to rectangle
 * @param dTranslateY
 *            Y translation to apply to rectangle
 * @param dScale
 *            scale to apply to rectangle
 * @param clipping
 *            Clipping area, points outside it will be clipped
 */
RegionAction( StructureSource oSource, Bounds bo, Action ac,
		double dTranslateX, double dTranslateY, double dScale,
		Region clipping )
{
	_oSource = oSource;

	bo = goFactory.copyOf( bo );
	bo.translate( dTranslateX, dTranslateY );
	bo.scale( dScale );

	Rectangle rect = new Rectangle( (int) bo.getLeft( ),
			(int) bo.getTop( ),
			(int) bo.getWidth( ),
			(int) bo.getHeight( ) );

	Region sh = new Region( );
	sh.add( rect );
	if ( clipping != null )
	{
		sh.intersect( clipping );
	}
	_ac = ac;

	this.region = sh;
}
 

/**
 * Shows the PopOverShell in a suitable location relative to the parent component. Classes extending PopOverShell will
 * provide the <code>Region</code> via the abstract <code>getAppropriatePopOverRegion()</code> method.
 */
public void show() {
  runBeforeShowPopOverShell();

  Point popOverShellSize = getAppropriatePopOverSize();
  popOverRegion = new Region();
  popOverRegion.add(new Rectangle(0, 0, popOverShellSize.x, popOverShellSize.y));

  Point location = getPopOverShellLocation(parentShell, poppedOverItem, popOverRegion);

  popOverShell.setRegion(popOverRegion);
  popOverShell.setSize(popOverRegion.getBounds().width, popOverRegion.getBounds().height);
  popOverShell.setLocation(location);
  popOverShell.setAlpha(FULLY_VISIBLE_ALPHA);
  popOverShell.setVisible(true);
}
 

/**
 * This constructor supports shape definition via an elliptical arc
 * 
 * @param oSource
 * @param boEllipse
 * @param dStart
 * @param dExtent
 * @param iArcType
 * @param ac
 */
RegionAction( StructureSource oSource, Bounds boEllipse, double dStart,
		double dExtent, int iArcType, Action ac, double dTranslateX,
		double dTranslateY, double dScale, Region clipping )
{
	_oSource = oSource;

	boEllipse = goFactory.copyOf( boEllipse );
	boEllipse.translate( dTranslateX, dTranslateY );
	boEllipse.scale( dScale );

	Shape shape = new Arc2D.Double( boEllipse.getLeft( ),
			boEllipse.getTop( ),
			boEllipse.getWidth( ),
			boEllipse.getHeight( ),
			dStart,
			dExtent,
			toSwingArcType( iArcType ) );

	int[] i2a = shape2polyCoords( shape );
	Region sh = new Region( );
	sh.add( i2a );

	if ( clipping != null )
	{
		sh.intersect( clipping );
	}

	_ac = ac;
	this.region = sh;

}
 

/**
 * @param parent
 * @param style
 */
public DynamicAddRemoveLineComposite(Composite parent, int style) {
	super(parent, style);
	if(getWidgetFactory() != null) {
		this.setBackground(ColorConstants.white);
	}
	this.setLayout(new GridLayout(2, false));

	imageplus = Pics.getImage(PicsConstants.plusBlack);
	imagemoins = Pics.getImage(PicsConstants.remove);

	minusGD = GridDataFactory.swtDefaults().align(SWT.CENTER, SWT.CENTER).create();
	// circle button
	regionForAdd = new Region();
	regionForAdd.add(createCircle(13, 13, 10));

	addButton = createAddButton(this);
	addButton.setLayoutData(GridDataFactory.swtDefaults().span(2, 1).create()) ;
	addButton.addSelectionListener(new SelectionAdapter() {
		/*
		 * (non-Javadoc)
		 * 
		 * @see
		 * org.eclipse.swt.events.SelectionAdapter#widgetSelected(org.eclipse
		 * .swt.events.SelectionEvent)
		 */
		@Override
		public void widgetSelected(SelectionEvent e) {
			addLine(null);
		}
	});
}
 

@Test
public void getResources_Create4Regions_CountEquals4() {
  Map<String, Integer> counts = ResourceQuery.getAllocatedResourceCounts(display);
  for (int i = 10; i < 14; i++) {
    Region r = new Region(display);
    r.add(0,0, i,i);
  }
  Assert.assertEquals(4, ResourceQuery.getAllocatedResourceCounts(display).get(Region.class.getName()).intValue());
}