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/*******************************************************************************
* Copyright (c) 2000, 2008 IBM Corporation and others.
* Portion Copyright (c) 2009-2010 compeople AG (http://www.compeople.de).
* 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:
* IBM Corporation - initial API and implementation
* Compeople AG - QtJambi/Qt based implementation for Windows/Mac OS X/Linux
*******************************************************************************/
package org.eclipse.swt.widgets;
import com.trolltech.qt.gui.QDialog;
import com.trolltech.qt.gui.QFont;
import com.trolltech.qt.gui.QFontDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.SWTException;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
/**
* Instances of this class allow the user to select a font from all available
* fonts in the system.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>(none)</dd>
* <dt><b>Events:</b></dt>
* <dd>(none)</dd>
* </dl>
* <p>
* IMPORTANT: This class is intended to be subclassed <em>only</em> within the
* SWT implementation.
* </p>
*
* @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example:
* ControlExample, Dialog tab</a>
* @see <a href="http://www.eclipse.org/swt/">Sample code and further
* information</a>
* @noextend This class is not intended to be subclassed by clients.
*/
public class FontDialog extends Dialog {
FontData fontData;
RGB rgb;
QFontDialog fd;
/**
* Constructs a new instance of this class given only its parent.
*
* @param parent
* a shell which will be the parent of the new instance
*
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* </ul>
* @exception SWTException
* <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an
* allowed subclass</li>
* </ul>
*/
public FontDialog(Shell parent) {
this(parent, SWT.APPLICATION_MODAL);
}
/**
* Constructs a new instance of this class given its parent and a style
* value describing its behavior and appearance.
* <p>
* The style value is either one of the style constants defined in class
* <code>SWT</code> which is applicable to instances of this class, or must
* be built by <em>bitwise OR</em>'ing together (that is, using the
* <code>int</code> "|" operator) two or more of those <code>SWT</code>
* style constants. The class description lists the style constants that are
* applicable to the class. Style bits are also inherited from superclasses.
* </p>
*
* @param parent
* a shell which will be the parent of the new instance
* @param style
* the style of dialog to construct
*
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* </ul>
* @exception SWTException
* <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an
* allowed subclass</li>
* </ul>
*/
public FontDialog(Shell parent, int style) {
super(parent, checkStyle(parent, style));
checkSubclass();
}
protected QFontDialog createFontDialog(Shell parent, int style) {
return new QFontDialog();
}
/**
* Returns a FontData object describing the font that was selected in the
* dialog, or null if none is available.
*
* @return the FontData for the selected font, or null
* @deprecated use #getFontList ()
*/
@Deprecated
public FontData getFontData() {
return getFontList()[0];
}
/**
* Returns a FontData set describing the font that was selected in the
* dialog, or null if none is available.
*
* @return the FontData for the selected font, or null
* @since 2.1.1
*/
public FontData[] getFontList() {
QFont font = fd.selectedFont();
if (font == null) {
return null;
}
FontData[] result = new FontData[1];
result[0] = qFontToFontData(font);
return result;
}
private FontData qFontToFontData(QFont qFont) {
int style = SWT.NORMAL;
if (qFont.italic()) {
style += SWT.ITALIC;
}
if (qFont.bold()) {
style += SWT.BOLD;
}
FontData fontData = new FontData(qFont.rawName(), qFont.pointSize(), style);
return fontData;
}
/**
* Returns an RGB describing the color that was selected in the dialog, or
* null if none is available.
*
* @return the RGB value for the selected color, or null
*
* @see PaletteData#getRGBs
*
* @since 2.1
*/
public RGB getRGB() {
// QFontDialog doesn't support setting a font color, see Bug 167
return null;
}
/**
* Makes the dialog visible and brings it to the front of the display.
*
* @return a FontData object describing the font that was selected, or null
* if the dialog was cancelled or an error occurred
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the dialog has been
* disposed</li>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the
* thread that created the dialog</li>
* </ul>
*/
public FontData open() {
fd = new QFontDialog();
if (fd.exec() == QDialog.DialogCode.Rejected.value()) {
return null;
}
QFont font = fd.selectedFont();
FontData fontData = qFontToFontData(font);
font.dispose();
fd.disposeLater();
return fontData;
}
/**
* Sets a FontData object describing the font to be selected by default in
* the dialog, or null to let the platform choose one.
*
* @param fontData
* the FontData to use initially, or null
* @deprecated use #setFontList (FontData [])
*/
@Deprecated
public void setFontData(FontData fontData) {
// QFontDialog doesn't support setting the default font
this.fontData = fontData;
}
/**
* Sets the set of FontData objects describing the font to be selected by
* default in the dialog, or null to let the platform choose one.
*
* @param fontData
* the set of FontData objects to use initially, or null to let
* the platform select a default when open() is called
*
* @see Font#getFontData
*
* @since 2.1.1
*/
public void setFontList(FontData[] fontData) {
// QFontDialog doesn't support setting the default font, see Bug 168
if (fontData != null && fontData.length > 0) {
this.fontData = fontData[0];
} else {
this.fontData = null;
}
}
/**
* Sets the RGB describing the color to be selected by default in the
* dialog, or null to let the platform choose one.
*
* @param rgb
* the RGB value to use initially, or null to let the platform
* select a default when open() is called
*
* @see PaletteData#getRGBs
*
* @since 2.1
*/
public void setRGB(RGB rgb) {
// QFontDialog doesn't support setting a font color, see Bug 167
this.rgb = rgb;
}
}
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