/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2011, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* -------------------
* SWTTitleEditor.java
* -------------------
* (C) Copyright 2006-2008, by Henry Proudhon and Contributors.
*
* Original Author: Henry Proudhon (henry.proudhon AT ensmp.fr);
* Contributor(s): David Gilbert (for Object Refinery Limited);
*
* Changes
* -------
* 01-Aug-2006 : New class (HP);
* 18-Dec-2008 : Use ResourceBundleWrapper - see patch 1607918 by
* Jess Thrysoee (DG);
*
*/
package org.jfree.experimental.chart.swt.editor;
import java.util.ResourceBundle;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.ColorDialog;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.FontDialog;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.title.Title;
import org.jfree.chart.util.ResourceBundleWrapper;
import org.jfree.experimental.swt.SWTPaintCanvas;
import org.jfree.experimental.swt.SWTUtils;
/**
* An editor for chart title properties.
*/
class SWTTitleEditor extends Composite {
/** Whether or not to display the title on the chart. */
private boolean showTitle;
/** The checkbox to indicate whether or not to display the title. */
private Button showTitleCheckBox;
/** A field for displaying/editing the title text. */
private Text titleField;
/** The font used to draw the title. */
private FontData titleFont;
/** A field for displaying a description of the title font. */
private Text fontField;
/** The button to use to select a new title font. */
private Button selectFontButton;
/** The paint (color) used to draw the title. */
private Color titleColor;
/** The button to use to select a new paint (color) to draw the title. */
private Button selectColorButton;
/** The resourceBundle for the localization. */
protected static ResourceBundle localizationResources
= ResourceBundleWrapper.getBundle(
"org.jfree.chart.editor.LocalizationBundle");
/** Font object used to handle a change of font. */
private Font font;
/**
* Standard constructor: builds a panel for displaying/editing the
* properties of the specified title.
*
* @param parent the parent.
* @param style the style.
* @param title the title, which should be changed.
*
*/
SWTTitleEditor(Composite parent, int style, Title title) {
super(parent, style);
FillLayout layout = new FillLayout();
layout.marginHeight = layout.marginWidth = 4;
setLayout(layout);
TextTitle t = (title != null ? (TextTitle) title
: new TextTitle(localizationResources.getString("Title")));
this.showTitle = (title != null);
this.titleFont = SWTUtils.toSwtFontData(getDisplay(), t.getFont(),
true);
this.titleColor = SWTUtils.toSwtColor(getDisplay(), t.getPaint());
Group general = new Group(this, SWT.NONE);
general.setLayout(new GridLayout(3, false));
general.setText(localizationResources.getString("General"));
// row 1
Label label = new Label(general, SWT.NONE);
label.setText(localizationResources.getString("Show_Title"));
GridData gridData = new GridData();
gridData.horizontalSpan = 2;
label.setLayoutData(gridData);
this.showTitleCheckBox = new Button(general, SWT.CHECK);
this.showTitleCheckBox.setSelection(this.showTitle);
this.showTitleCheckBox.setLayoutData(new GridData(SWT.CENTER,
SWT.CENTER, false, false));
this.showTitleCheckBox.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
SWTTitleEditor.this.showTitle = SWTTitleEditor.this
.showTitleCheckBox.getSelection();
}
});
// row 2
new Label(general, SWT.NONE).setText(localizationResources.getString(
"Text"));
this.titleField = new Text(general, SWT.BORDER);
this.titleField.setText(t.getText());
this.titleField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true,
false));
new Label(general, SWT.NONE).setText("");
// row 3
new Label(general, SWT.NONE).setText(localizationResources.getString(
"Font"));
this.fontField = new Text(general, SWT.BORDER);
this.fontField.setText(this.titleFont.toString());
this.fontField.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true,
false));
this.selectFontButton = new Button(general, SWT.PUSH);
this.selectFontButton.setText(localizationResources.getString(
"Select..."));
this.selectFontButton.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
// Create the font-change dialog
FontDialog dlg = new FontDialog(getShell());
dlg.setText(localizationResources.getString(
"Font_Selection"));
dlg.setFontList(new FontData[] {
SWTTitleEditor.this.titleFont });
if (dlg.open() != null) {
// Dispose of any fonts we have created
if (SWTTitleEditor.this.font != null) {
SWTTitleEditor.this.font.dispose();
}
// Create the new font and set it into the title
// label
SWTTitleEditor.this.font = new Font(
getShell().getDisplay(), dlg.getFontList());
//titleField.setFont(font);
SWTTitleEditor.this.fontField.setText(
SWTTitleEditor.this.font.getFontData()[0]
.toString());
SWTTitleEditor.this.titleFont
= SWTTitleEditor.this.font.getFontData()[0];
}
}
}
);
// row 4
new Label(general, SWT.NONE).setText(localizationResources.getString(
"Color"));
// Use a SwtPaintCanvas to show the color, note that we must set the
// heightHint.
final SWTPaintCanvas colorCanvas = new SWTPaintCanvas(general,
SWT.NONE, this.titleColor);
GridData canvasGridData = new GridData(SWT.FILL, SWT.CENTER, true,
false);
canvasGridData.heightHint = 20;
colorCanvas.setLayoutData(canvasGridData);
this.selectColorButton = new Button(general, SWT.PUSH);
this.selectColorButton.setText(localizationResources.getString(
"Select..."));
this.selectColorButton.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
// Create the color-change dialog
ColorDialog dlg = new ColorDialog(getShell());
dlg.setText(localizationResources.getString(
"Title_Color"));
dlg.setRGB(SWTTitleEditor.this.titleColor.getRGB());
RGB rgb = dlg.open();
if (rgb != null) {
// create the new color and set it to the
// SwtPaintCanvas
SWTTitleEditor.this.titleColor = new Color(
getDisplay(), rgb);
colorCanvas.setColor(
SWTTitleEditor.this.titleColor);
}
}
}
);
}
/**
* Returns the title text entered in the panel.
*
* @return The title text entered in the panel.
*/
public String getTitleText() {
return this.titleField.getText();
}
/**
* Returns the font selected in the panel.
*
* @return The font selected in the panel.
*/
public FontData getTitleFont() {
return this.titleFont;
}
/**
* Returns the font selected in the panel.
*
* @return The font selected in the panel.
*/
public Color getTitleColor() {
return this.titleColor;
}
/**
* Sets the properties of the specified title to match the properties
* defined on this panel.
*
* @param chart the chart whose title is to be modified.
*/
public void setTitleProperties(JFreeChart chart) {
if (this.showTitle) {
TextTitle title = chart.getTitle();
if (title == null) {
title = new TextTitle();
chart.setTitle(title);
}
title.setText(getTitleText());
title.setFont(SWTUtils.toAwtFont(getDisplay(), getTitleFont(),
true));
title.setPaint(SWTUtils.toAwtColor(getTitleColor()));
}
else {
chart.setTitle((TextTitle) null);
}
}
}