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/*******************************************************************************
* Copyright (c) 2004, 2009 Tasktop Technologies and others.
* 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.internal.provisional.commons.ui;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.window.ToolTip;
import org.eclipse.mylyn.commons.ui.GradientColors;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
/**
* A Custom JFace ToolTip that applies a gradient to the contents
*
* @author Shawn Minto
* @deprecated use {@link org.eclipse.mylyn.commons.ui.GradientToolTip} instead
*/
@Deprecated
public abstract class GradientToolTip extends ToolTip {
private GradientColors colors;
private LocalResourceManager resourceManager;
public GradientToolTip(Control control, int style, boolean manualActivation) {
super(control, style, manualActivation);
initResources(control);
}
public GradientToolTip(Control control) {
super(control);
initResources(control);
}
private void initResources(Control control) {
resourceManager = new LocalResourceManager(JFaceResources.getResources());
colors = new GradientColors(control.getDisplay(), resourceManager);
}
@Override
protected final Composite createToolTipContentArea(Event event, final Composite parent) {
GradientCanvas gradient = new GradientCanvas(parent, SWT.NONE);
gradient.setSeparatorVisible(false);
GridLayout headLayout = new GridLayout();
headLayout.marginHeight = 0;
headLayout.marginWidth = 0;
headLayout.horizontalSpacing = 0;
headLayout.verticalSpacing = 0;
headLayout.numColumns = 1;
gradient.setLayout(headLayout);
gradient.setBackgroundGradient(new Color[] { colors.getGradientBegin(), colors.getGradientEnd() },
new int[] { 100 }, true);
createToolTipArea(event, gradient);
// force a null background so that the gradient shines through
for (Control c : gradient.getChildren()) {
setNullBackground(c);
}
return gradient;
}
private void setNullBackground(final Control outerCircle) {
outerCircle.setBackground(null);
if (outerCircle instanceof Composite) {
((Composite) outerCircle).setBackgroundMode(SWT.INHERIT_FORCE);
for (Control c : ((Composite) outerCircle).getChildren()) {
setNullBackground(c);
}
}
}
protected abstract Composite createToolTipArea(Event event, Composite parent);
}
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