/*******************************************************************************
* Copyright 2005-2006, CHISEL Group, University of Victoria, Victoria, BC,
* Canada. 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: The Chisel Group, University of Victoria
******************************************************************************/
package org.eclipse.zest.core.widgets.internal;
import org.eclipse.draw2d.ActionEvent;
import org.eclipse.draw2d.ActionListener;
import org.eclipse.draw2d.Clickable;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.FreeformLayout;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.ToolbarLayout;
import org.eclipse.draw2d.Triangle;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;
import org.eclipse.zest.core.widgets.GraphContainer;
public class ExpandGraphLabel extends Figure implements ActionListener {
public static final int OPEN = 1;
public static final int CLOSED = 2;
private int state = CLOSED;
private Expander expander = null;
class Expander extends Clickable {
private Triangle triangle;
public Expander() {
setStyle(Clickable.STYLE_TOGGLE);
triangle = new Triangle();
triangle.setSize(10, 10);
triangle.setBackgroundColor(ColorConstants.black());
triangle.setForegroundColor(ColorConstants.black());
triangle.setFill(true);
triangle.setDirection(Triangle.EAST);
triangle.setLocation(new Point(5, 3));
this.setLayoutManager(new FreeformLayout());
this.add(triangle);
this.setPreferredSize(15, 15);
this.addActionListener(ExpandGraphLabel.this);
}
public void open() {
triangle.setDirection(Triangle.SOUTH);
}
public void close() {
triangle.setDirection(Triangle.EAST);
}
}
/**
* Sets the expander state (the little triangle) to ExpanderGraphLabel.OPEN
* or ExpanderGraphLabel.CLOSED
*
* @param state
*/
public void setExpandedState(int state) {
if (state == OPEN) {
expander.open();
} else {
expander.close();
}
this.state = state;
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.draw2d.ActionListener#actionPerformed(org.eclipse.draw2d.
* ActionEvent)
*/
public void actionPerformed(ActionEvent event) {
if (state == OPEN) {
container.close(true);
} else {
container.open(true);
}
}
private int arcWidth;
private Label label = null;
private final GraphContainer container;
private ToolbarLayout layout;
public ExpandGraphLabel(GraphContainer container, boolean cacheLabel) {
this(container, "", null, cacheLabel);
}
public ExpandGraphLabel(GraphContainer container, Image i,
boolean cacheLabel) {
this(container, "", i, cacheLabel);
}
public ExpandGraphLabel(GraphContainer container, String text,
boolean cacheLabel) {
this(container, text, null, cacheLabel);
}
public ExpandGraphLabel(GraphContainer container, String text, Image image,
boolean cacheLabel) {
this.label = new Label(text) {
/*
* This method is overwritten so that the text is not truncated.
* (non-Javadoc)
*
* @see
* org.eclipse.draw2d.Label#paintFigure(org.eclipse.draw2d.Graphics)
*/
protected void paintFigure(Graphics graphics) {
if (isOpaque()) {
super.paintFigure(graphics);
}
Rectangle bounds = getBounds();
graphics.translate(bounds.x, bounds.y);
if (getIcon() != null) {
graphics.drawImage(getIcon(), getIconLocation());
}
if (!isEnabled()) {
graphics.translate(1, 1);
graphics.setForegroundColor(ColorConstants.buttonLightest());
graphics.drawText(getSubStringText(), getTextLocation());
graphics.translate(-1, -1);
graphics.setForegroundColor(ColorConstants.buttonDarker());
}
graphics.drawText(getText(), getTextLocation());
graphics.translate(-bounds.x, -bounds.y);
}
};
this.setText(text);
this.setImage(image);
this.container = container;
this.expander = new Expander();
this.arcWidth = 8;
this.setFont(Display.getDefault().getSystemFont());
layout = new ToolbarLayout(true);
layout.setSpacing(5);
layout.setMinorAlignment(ToolbarLayout.ALIGN_CENTER);
this.setLayoutManager(layout);
this.add(this.expander);
this.add(this.label);
// this.remove(this.label);
}
/**
* Adjust the bounds to make the text fit without truncation.
*/
protected void adjustBoundsToFit() {
String text = getText();
if ((text != null) && (text.length() > 0)) {
Font font = getFont();
if (font != null) {
Dimension minSize = FigureUtilities.getTextExtents(text, font);
if (getIcon() != null) {
org.eclipse.swt.graphics.Rectangle imageRect = getIcon()
.getBounds();
int expandHeight = Math.max(imageRect.height
- minSize.height, 0);
minSize.expand(imageRect.width + 4, expandHeight);
}
minSize.expand(10 + (2 * 1) + 100, 4 + (2 * 1));
label.setBounds(new Rectangle(getLocation(), minSize));
}
}
}
private Image getIcon() {
return this.label.getIcon();
}
private String getText() {
return this.label.getText();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.draw2d.Label#paintFigure(org.eclipse.draw2d.Graphics)
*/
public void paint(Graphics graphics) {
int blue = getBackgroundColor().getBlue();
blue = (int) (blue - (blue * 0.20));
blue = blue > 0 ? blue : 0;
int red = getBackgroundColor().getRed();
red = (int) (red - (red * 0.20));
red = red > 0 ? red : 0;
int green = getBackgroundColor().getGreen();
green = (int) (green - (green * 0.20));
green = green > 0 ? green : 0;
Color lightenColor = new Color(Display.getCurrent(), new RGB(red,
green, blue));
graphics.setForegroundColor(lightenColor);
graphics.setBackgroundColor(getBackgroundColor());
graphics.pushState();
// fill in the background
Rectangle bounds = getBounds().getCopy();
Rectangle r = bounds.getCopy();
// r.x += arcWidth / 2;
r.y += arcWidth / 2;
// r.width -= arcWidth;
r.height -= arcWidth;
Rectangle top = bounds.getCopy();
top.height /= 2;
// graphics.setForegroundColor(lightenColor);
// graphics.setBackgroundColor(lightenColor);
graphics.setForegroundColor(getBackgroundColor());
graphics.setBackgroundColor(getBackgroundColor());
graphics.fillRoundRectangle(top, arcWidth, arcWidth);
top.y = top.y + top.height;
// graphics.setForegroundColor(getBackgroundColor());
// graphics.setBackgroundColor(getBackgroundColor());
graphics.setForegroundColor(lightenColor);
graphics.setBackgroundColor(lightenColor);
graphics.fillRoundRectangle(top, arcWidth, arcWidth);
// graphics.setForegroundColor(lightenColor);
// graphics.setBackgroundColor(getBackgroundColor());
graphics.setBackgroundColor(lightenColor);
graphics.setForegroundColor(getBackgroundColor());
graphics.fillGradient(r, true);
super.paint(graphics);
graphics.popState();
graphics.setForegroundColor(lightenColor);
graphics.setBackgroundColor(lightenColor);
// paint the border
bounds.setSize(bounds.width - 1, bounds.height - 1);
graphics.drawRoundRectangle(bounds, arcWidth, arcWidth);
lightenColor.dispose();
}
// public Dimension getPreferredSize(int hint, int hint2) {
// return this.label.getPreferredSize();
// }
public void setTextT(String string) {
this.setPreferredSize(null);
this.label.setText(string);
this.add(label);
// System.out.println(this.label.getPreferredSize());
this.layout.layout(this);
this.invalidate();
this.revalidate();
this.validate();
// this.remove(label);
}
public void setText(String string) {
this.label.setText(string);
// this.label.setPreferredSize(500, 30);
// adjustBoundsToFit();
}
public void setImage(Image image) {
this.label.setIcon(image);
// adjustBoundsToFit();
}
public void setLocation(Point p) {
// TODO Auto-generated method stub
super.setLocation(p);
}
public void setBounds(Rectangle rect) {
// TODO Auto-generated method stub
super.setBounds(rect);
}
}