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/*******************************************************************************
* Copyright (c) 2010, 2016 THALES GLOBAL SERVICES.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.sirius.diagram.ui.tools.internal.figure.util;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.SWTGraphics;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gmf.runtime.draw2d.ui.internal.graphics.ScaledGraphics;
import org.eclipse.sirius.diagram.ui.tools.internal.render.SiriusGraphicsToGraphics2DAdaptor;
/**
* .
*
* @author mchauvin
*/
public final class GraphicsUtilities {
private static Method method;
private static Method zoomMethod;
static {
try {
method = ScaledGraphics.class.getDeclaredMethod("getGraphics"); //$NON-NLS-1$
method.setAccessible(true);
zoomMethod = ScaledGraphics.class.getDeclaredMethod("zoomFillRect", int.class, int.class, int.class, int.class); //$NON-NLS-1$
zoomMethod.setAccessible(true);
} catch (final NoSuchMethodException e) {
// Cannot happen here
}
}
private GraphicsUtilities() {
}
/**
* Get the SWT graphic instance.
*
* @param graphics
* the wrapped SWT graphics instance
* @return the wrapped graphic instance
*/
public static SWTGraphics getSWTGraphics(final Graphics graphics) {
SWTGraphics swtGrpahics = null;
Graphics internalGraphics = null;
if (graphics instanceof ScaledGraphics) {
internalGraphics = GraphicsUtilities.getInternalGraphics((ScaledGraphics) graphics);
}
if (internalGraphics instanceof SWTGraphics) {
swtGrpahics = (SWTGraphics) internalGraphics;
/* we need to recheck in case of zoom see trac #1065 */
} else if (internalGraphics instanceof ScaledGraphics) {
swtGrpahics = GraphicsUtilities.getSWTGraphics(internalGraphics);
} else if (internalGraphics instanceof org.eclipse.draw2d.ScaledGraphics) {
swtGrpahics = GraphicsUtilities.getSWTGraphics(internalGraphics);
}
return swtGrpahics;
}
/**
* Get the SiriusGraphicsToGraphics2DAdaptor graphic instance.
*
* @param graphics
* the wrapped SiriusGraphicsToGraphics2DAdaptor graphics
* instance
* @return the wrapped graphic instance
*/
public static SiriusGraphicsToGraphics2DAdaptor getSiriusGraphicsToGraphics2DAdaptor(Graphics graphics) {
Graphics internalGraphics = null;
if (graphics instanceof ScaledGraphics) {
internalGraphics = GraphicsUtilities.getInternalGraphics((ScaledGraphics) graphics);
}
if (internalGraphics instanceof SiriusGraphicsToGraphics2DAdaptor) {
return (SiriusGraphicsToGraphics2DAdaptor) internalGraphics;
}
return null;
}
private static Graphics getInternalGraphics(final ScaledGraphics graphics) {
try {
method = ScaledGraphics.class.getDeclaredMethod("getGraphics"); //$NON-NLS-1$
method.setAccessible(true);
return (Graphics) method.invoke(graphics);
} catch (final SecurityException e) {
// Cannot happen here
} catch (final IllegalArgumentException e) {
// // Cannot happen here
} catch (final IllegalAccessException e) {
// // Cannot happen here
} catch (final InvocationTargetException e) {
// // Cannot happen here
} catch (final NoSuchMethodException e) {
// Cannot happen here
}
return null;
}
/**
* Get zoom fill rectangle.
*
* @param graphics
* the graphics
* @param bounds
* the bounds
* @return the rectangle
*/
public static Rectangle zoomFillRectangle(final Graphics graphics, Rectangle bounds) {
try {
zoomMethod = ScaledGraphics.class.getDeclaredMethod("zoomFillRect", int.class, int.class, int.class, int.class); //$NON-NLS-1$
zoomMethod.setAccessible(true);
return (Rectangle) zoomMethod.invoke(graphics, bounds.x, bounds.y, bounds.width, bounds.height);
} catch (final SecurityException e) {
// Cannot happen here
} catch (final IllegalArgumentException e) {
// // Cannot happen here
} catch (final IllegalAccessException e) {
// // Cannot happen here
} catch (final InvocationTargetException e) {
// // Cannot happen here
} catch (final NoSuchMethodException e) {
// Cannot happen here
}
return null;
}
}
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