/*******************************************************************************
* Copyright (c) 2000, 2012 IBM Corporation and others.
* 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
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.internal.cocoa.*;
/**
* 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 <em>not</em> intended to be subclassed.
* </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;
boolean selected;
int fontID, fontSize;
boolean effectsVisible = true;
/**
* 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 ();
}
void changeFont(long /*int*/ id, long /*int*/ sel, long /*int*/ arg0) {
selected = true;
}
/**
* Returns <code>true</code> if the dialog's effects selection controls
* are visible, and <code>false</code> otherwise.
* <p>
* If the platform's font dialog does not have any effects selection controls,
* then this method always returns false.
* </p>
*
* @return <code>true</code> if the dialog's effects selection controls
* are visible and <code>false</code> otherwise
*
* @since 3.8
*/
public boolean getEffectsVisible () {
return effectsVisible;
}
/**
* 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 ()
*/
public FontData getFontData () {
return fontData;
}
/**
* 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 () {
if (fontData == null) return null;
FontData [] result = new FontData [1];
result [0] = fontData;
return result;
}
/**
* 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 () {
return rgb;
}
/**
* 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 () {
Display display = parent != null ? parent.display : Display.getCurrent ();
NSFontPanel panel = NSFontPanel.sharedFontPanel();
panel.setTitle(NSString.stringWith(title != null ? title : ""));
boolean create = fontData != null;
Font font = create ? new Font(display, fontData) : display.getSystemFont();
panel.setPanelFont(font.handle, false);
SWTPanelDelegate delegate = (SWTPanelDelegate)new SWTPanelDelegate().alloc().init();
long /*int*/ jniRef = OS.NewGlobalRef(this);
if (jniRef == 0) error(SWT.ERROR_NO_HANDLES);
OS.object_setInstanceVariable(delegate.id, Display.SWT_OBJECT, jniRef);
panel.setDelegate(delegate);
fontData = null;
selected = false;
panel.orderFront(null);
display.setModalDialog(this);
NSApplication.sharedApplication().runModalForWindow(panel);
display.setModalDialog(null);
if (selected) {
NSFont nsFont = panel.panelConvertFont(font.handle);
if (nsFont != null) {
fontData = Font.cocoa_new(display, nsFont).getFontData()[0];
}
}
panel.setDelegate(null);
delegate.release();
OS.DeleteGlobalRef(jniRef);
if (create) font.dispose();
return fontData;
}
void setColor_forAttribute(long /*int*/ id, long /*int*/ sel, long /*int*/ colorArg, long /*int*/ attribute) {
if (attribute != 0 && NSString.stringWith("NSColor").isEqualToString(new NSString(attribute))) { //$NON-NLS-1$
if (colorArg != 0) {
NSColor color = new NSColor(colorArg);
Display display = parent != null ? parent.getDisplay() : Display.getCurrent();
double /*float*/ [] handle = display.getNSColorRGB(color);
rgb = new RGB((int)(handle[0] * 255), (int)(handle[1] * 255), (int)(handle[2] * 255));
} else {
rgb = null;
}
}
}
/**
* Sets the effects selection controls in the dialog visible if the
* argument is <code>true</code>, and invisible otherwise.
* <p>
* By default the effects selection controls are displayed if the
* platform font dialog supports effects selection.
* </p>
*
* @param visible whether or not the dialog will show the effects selection controls
*
* @since 3.8
*/
public void setEffectsVisible(boolean visible) {
effectsVisible = visible;
}
/**
* 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 [])
*/
public void setFontData (FontData fontData) {
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) {
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) {
this.rgb = rgb;
}
int validModesForFontPanel(long /*int*/ id, long /*int*/ sel, long /*int*/ arg0) {
return effectsVisible ? OS.NSFontPanelAllModesMask : OS.NSFontPanelAllModesMask & ~OS.NSFontPanelAllEffectsModeMask;
}
void windowWillClose(long /*int*/ id, long /*int*/ sel, long /*int*/ sender) {
NSApplication.sharedApplication().stop(null);
}
}