/*******************************************************************************
* Copyright (c) 2012 Google, Inc.
* 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:
* Google, Inc. - initial API and implementation
*******************************************************************************/
package com.windowtester.runtime.swt.internal.widgets.linux.gtk.x86;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.concurrent.Callable;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.TabItem;
import com.windowtester.runtime.swt.internal.widgets.TabItemReference;
/**
* A {@link TabItem} reference that uses native linux_x86-specific code to access bounds.
*/
public class TabItemReference_linux_gtk_x86 extends TabItemReference
{
public TabItemReference_linux_gtk_x86(TabItem control) {
super(control);
}
@Override
public Rectangle getDisplayBounds() {
return displayRef.execute(new Callable<Rectangle>() {
public Rectangle call() throws Exception {
return gtk_getBounds(getWidget());
}
});
}
static Rectangle gtk_getBounds(TabItem tabItem) {
Rectangle bounds = new Rectangle(0, 0, 0, 0);
try {
Class<?> c = Class.forName("org.eclipse.swt.widgets.Widget");
Field f = c.getDeclaredField("handle");
f.setAccessible(true);
int handle = f.getInt(tabItem);
gtk_getBounds(handle, bounds);
}
catch (Throwable e) {
throw new UnsupportedOperationException(e);
}
return tabItem.getDisplay().map(tabItem.getParent(), null, bounds);
}
static void gtk_getBounds(int handle, Rectangle bounds) {
try {
Class<?> clazz = Class.forName("org.eclipse.swt.internal.gtk.OS");
Class<?>[] params = new Class[]{
Integer.TYPE
};
Object[] args = new Object[]{
new Integer(handle)
};
Method method = clazz.getMethod("GTK_WIDGET_X", params);
bounds.x = ((Integer) method.invoke(clazz, args)).intValue();
method = clazz.getMethod("GTK_WIDGET_Y", params);
bounds.y = ((Integer) method.invoke(clazz, args)).intValue();
method = clazz.getMethod("GTK_WIDGET_WIDTH", params);
bounds.width = ((Integer) method.invoke(clazz, args)).intValue();
method = clazz.getMethod("GTK_WIDGET_HEIGHT", params);
bounds.height = ((Integer) method.invoke(clazz, args)).intValue();
}
catch (Throwable e) {
throw new UnsupportedOperationException(e);
}
}
}