/*
* Created on Oct 15, 2004
*
* The MIT License
* Copyright (c) 2004 Stephen Milligan
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the Software
* is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.cfeclipse.cfml.preferences;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ColorDialog;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
class ColorEditor
{
private Point fExtent = null;
private Image fImage = null;
private RGB fColorValue = null;
private Color fColor = null;
private Button fButton = null;
public ColorEditor(Composite parent)
{
fButton = new Button(parent, 8);
fExtent = computeImageSize(parent);
fImage = new Image(parent.getDisplay(), fExtent.x, fExtent.y);
GC gc = new GC(fImage);
gc.setBackground(fButton.getBackground());
gc.fillRectangle(0, 0, fExtent.x, fExtent.y);
gc.dispose();
fButton.setImage(fImage);
fButton.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent event)
{
ColorDialog colorDialog = new ColorDialog(fButton.getShell());
colorDialog.setRGB(fColorValue);
RGB newColor = colorDialog.open();
if(newColor != null)
{
fColorValue = newColor;
updateColorImage();
}
}
});
fButton.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent event)
{
if(fImage != null)
{
fImage.dispose();
fImage = null;
}
if(fColor != null)
{
fColor.dispose();
fColor = null;
}
}
});
}
public RGB getColorValue()
{
return fColorValue;
}
public void setColorValue(RGB rgb)
{
fColorValue = rgb;
updateColorImage();
}
public Button getButton()
{
return fButton;
}
protected void updateColorImage()
{
Display display = fButton.getDisplay();
GC gc = new GC(fImage);
gc.setForeground(display.getSystemColor(2));
gc.drawRectangle(0, 2, fExtent.x - 1, fExtent.y - 4);
if(fColor != null)
fColor.dispose();
fColor = new Color(display, fColorValue);
gc.setBackground(fColor);
gc.fillRectangle(1, 3, fExtent.x - 2, fExtent.y - 5);
gc.dispose();
fButton.setImage(fImage);
}
protected Point computeImageSize(Control window)
{
GC gc = new GC(window);
org.eclipse.swt.graphics.Font f = JFaceResources.getFontRegistry().get("org.eclipse.jface.defaultfont");
gc.setFont(f);
int height = gc.getFontMetrics().getHeight();
gc.dispose();
Point p = new Point(height * 3 - 6, height);
return p;
}
}