/* uDig - User Friendly Desktop Internet GIS client
* http://udig.refractions.net
* (C) 2004-2012, Refractions Research Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* (http://www.eclipse.org/legal/epl-v10.html), and the Refractions BSD
* License v1.0 (http://udig.refractions.net/files/bsd3-v10.html).
*/
package org.locationtech.udig.style.advanced.utils;
import org.eclipse.swt.SWT;
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.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.FontDialog;
import org.eclipse.swt.widgets.Shell;
import org.locationtech.udig.style.advanced.internal.Messages;
/**
* <p>
* A "button" with an icon/text that pops up the font window.
* </p>
*
* @author aalam
* @author Andrea Antonello (www.hydrologis.com)
* @since 0.6.0
*/
public class FontEditor {
private Image fImage = null;
private RGB fColorValue;
private Color fColor[] = null;
private Font fFont[] = null;
private FontData[] fFontList = null;
private Button fButton;
private SelectionListener parentListener;
final FontDialog labelFontDialog;
public FontEditor(Composite parent) {
this(parent, null);
}
public FontEditor( Composite parent, SelectionListener parentListener ) {
this.parentListener = parentListener;
fButton = new Button(parent, SWT.PUSH);
fFont = new Font[1];
fColor = new Color[1];
fButton.setText(Messages.FontEditor_0);
labelFontDialog = new FontDialog(new Shell());
labelFontDialog.setText("Choose a Font"); //$NON-NLS-1$
fButton.setImage(fImage);
fButton.addSelectionListener(new SelectionAdapter(){
public void widgetSelected( SelectionEvent event ) {
labelFontDialog.setRGB(fColorValue);
labelFontDialog.setFontList(fFontList);
if (labelFontDialog.open() == null)
return;
if (fFont[0] != null)
fFont[0].dispose();
FontData[] list = labelFontDialog.getFontList();
if (list != null) {
fFont[0] = new Font(fButton.getDisplay(), list);
// set the text font here...
fFontList = list;
}
RGB rgb = labelFontDialog.getRGB();
if (rgb != null) {
if (fColor[0] != null)
fColor[0].dispose();
fColor[0] = new Color(fButton.getDisplay(), rgb);
// set the text foreground color here...
fColorValue = rgb;
fButton.setForeground(fColor[0]);
}
notifyParent(event);
}
});
fButton.addDisposeListener(new DisposeListener(){
public void widgetDisposed( DisposeEvent event ) {
if (fImage != null) {
fImage.dispose();
fImage = null;
}
if (fColor != null) {
if (fColor[0] != null)
fColor[0].dispose();
fColor = null;
}
if (fFont != null) {
if (fFont[0] != null)
fFont[0].dispose();
fFont = null;
}
}
});
}
public void setListener(SelectionListener parentListener) {
this.parentListener = parentListener;
}
public void clearListener() {
this.parentListener = null;
}
private void notifyParent( SelectionEvent event ) {
if(parentListener != null)
parentListener.widgetSelected(event);
}
public Color getColor() {
return fColor[0];
}
public java.awt.Color getAWTColor() {
Color tmpColor = getColor();
if(tmpColor == null) return null;
return new java.awt.Color(tmpColor.getRed(),
tmpColor.getGreen(), tmpColor.getBlue());
}
/**
* Returns the currently selected font object
*
* @return Font
*/
public Font getFont() {
return fFont[0];
}
public FontData[] getFontList() {
return fFontList;
}
public void setFontList( FontData[] list ) {
if(list != null) {
fFontList = list;
fFont[0] = new Font(fButton.getDisplay(), list);
labelFontDialog.setFontList(list);
}
}
public RGB getColorValue() {
return fColorValue;
}
public void setColorValue( RGB rgb ) {
fColorValue = rgb;
fColor[0] = new Color(fButton.getDisplay(), rgb);
labelFontDialog.setRGB(rgb);
updateColorImage();
}
public void setColorValue(java.awt.Color colour) {
if(colour != null) {
setColorValue(new RGB(
colour.getRed(), colour.getGreen(), colour.getBlue()));
}
}
public Button getButton() {
return fButton;
}
private void updateColorImage() {
/*
* Display display= fButton.getDisplay(); GC gc= new GC(fImage);
* gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK)); 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);
*/
}
public void setEnabled(boolean enabled) {
fButton.setEnabled(enabled);
}
}