package org.jboss.tools.smooks.gef.tree.editpolicy;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.IFigure;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.editpolicies.GraphicalEditPolicy;
import org.eclipse.swt.graphics.Color;
import org.jboss.tools.smooks.configuration.editors.GraphicsConstants;
public class FigureHighlightEditPolicy extends GraphicalEditPolicy {
private Color revertColor;
public static Color highLightColor = FigureUtilities.darker(GraphicsConstants.TB_BG_CORLOR);
public FigureHighlightEditPolicy() {
super();
}
/**
* @see org.eclipse.gef.EditPolicy#eraseTargetFeedback(org.eclipse.gef.Request)
*/
public void eraseTargetFeedback(Request request) {
if (revertColor != null) {
unsetContainerBackgroud(revertColor);
revertColor = null;
}
}
private void unsetContainerBackgroud(Color c) {
IFigure figure = getContainerFigure();
if (figure instanceof IShowHighlighFigure) {
((IShowHighlighFigure) figure).showbackOldbackgroundColor(c);
}
getContainerFigure().setBackgroundColor(c);
}
private Color getContainerBackground() {
return getContainerFigure().getBackgroundColor();
}
private IFigure getContainerFigure() {
return ((GraphicalEditPart) getHost()).getFigure();
}
/**
* @see org.eclipse.gef.EditPolicy#getTargetEditPart(org.eclipse.gef.Request)
*/
public EditPart getTargetEditPart(Request request) {
return request.getType().equals(RequestConstants.REQ_SELECTION_HOVER) ? getHost() : null;
}
private void setContainerBackground(Color c) {
IFigure figure = getContainerFigure();
if (figure instanceof IShowHighlighFigure) {
((IShowHighlighFigure) figure).showHighlightBackgroudColor(c);
}
getContainerFigure().setBackgroundColor(c);
}
/**
* Changes the background color of the container to the highlight color
*/
protected void showHighlight() {
if (revertColor == null) {
revertColor = getContainerBackground();
setContainerBackground(highLightColor);
}
}
/**
* @see org.eclipse.gef.EditPolicy#showTargetFeedback(org.eclipse.gef.Request)
*/
public void showTargetFeedback(Request request) {
if (request.getType().equals(RequestConstants.REQ_CONNECTION_END) || request.getType().equals(RequestConstants.REQ_ADD))
showHighlight();
}
}