org.eclipse.gmf.runtime.draw2d.ui.mapmode.MapModeUtil Java Examples

/**
 * Given a label figure object, this will calculate the correct Font needed
 * to display into screen coordinates, taking into account the current
 * mapmode. This will typically be used by direct edit cell editors that
 * need to display independent of the zoom or any coordinate mapping that is
 * taking place on the drawing surface.
 * 
 * @param label
 *            the label to use for the font calculation
 * @return the <code>Font</code> that is scaled to the screen coordinates.
 *         Note: the returned <code>Font</code> should not be disposed since
 *         it is cached by a common resource manager.
 */
protected Font getScaledFont(IFigure label) {
	Font scaledFont = label.getFont();
	FontData data = scaledFont.getFontData()[0];
	Dimension fontSize = new Dimension(0, MapModeUtil.getMapMode(label).DPtoLP(data.getHeight()));
	label.translateToAbsolute(fontSize);

	if (Math.abs(data.getHeight() - fontSize.height) < 2)
		fontSize.height = data.getHeight();

	try {
		FontDescriptor fontDescriptor = FontDescriptor.createFrom(data);
		cachedFontDescriptors.add(fontDescriptor);
		return getResourceManager().createFont(fontDescriptor);
	} catch (DeviceResourceException e) {
		Trace.catching(DiagramUIPlugin.getInstance(), DiagramUIDebugOptions.EXCEPTIONS_CATCHING, getClass(),
				"getScaledFont", e); //$NON-NLS-1$
		Log.error(DiagramUIPlugin.getInstance(), DiagramUIStatusCodes.IGNORED_EXCEPTION_WARNING, "getScaledFont", e); //$NON-NLS-1$
	}
	return JFaceResources.getDefaultFont();
}
 

@Override
public FlowUtilitiesEx getFlowUtilities() {
	if (flowUtilities == null) {
		flowUtilities = new FlowUtilitiesEx(MapModeUtil.getMapMode(this)) {
			@Override
			protected TextUtilities getTextUtilities() {
				if (textUtilities == null) {
					textUtilities = new StyleTextUtilities(MapModeUtil.getMapMode(StyledTextFlow.this));
				}
				return textUtilities;
			}
		};
	}
	return flowUtilities;
}
 

public void createDecorators(IGraphicalEditPart editPart) {
	PriorityFigure figure = new PriorityFigure(MapModeUtil.getMapMode(), getPriority(editPart));
	figure.setSize(12, 13);
	setDecoration(getDecoratorTarget().addDecoration(figure,
			new ConnectionLocator((Connection) editPart.getFigure(), ConnectionLocator.TARGET) {
				protected Point getLocation(PointList points) {
					Point p = PointListUtilities.pointOn(PointListUtilities.copyPoints(points),
							DISTANCE_TO_SOURCE, KeyPoint.ORIGIN, new Point());
					return p;
				}
			}, false));

	figure.setToolTip(new Label("Transition Priority " + getPriority(editPart)));
}
 

protected IMapMode getMapMode() {
	RootEditPart root = getHost().getRoot();
	if (root instanceof DiagramRootEditPart) {
		DiagramRootEditPart dgrmRoot = (DiagramRootEditPart) root;
		return dgrmRoot.getMapMode();
	}
	return MapModeUtil.getMapMode();

}
 

public void createDecorators(IGraphicalEditPart editPart) {
	PriorityFigure figure = new PriorityFigure(MapModeUtil.getMapMode(), getPriority(editPart));
	figure.setSize(10, 10);
	setDecoration(
			getDecoratorTarget().addShapeDecoration(figure, IDecoratorTarget.Direction.NORTH_WEST, -1, false));
}