bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/FontDialog.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-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.carbon.OS;
 import org.eclipse.swt.internal.carbon.FontSelectionQDStyle;
 import org.eclipse.swt.internal.Callback;
 import org.eclipse.swt.internal.carbon.RGBColor;

 /**
  * Instances of this class allow the user to select a font
  * from all available fonts in the system.
  * <p>
  * IMPORTANT: This class is intended to be subclassed <em>only</em>
  * within the SWT implementation.
  * </p>
  */
 public class FontDialog extends Dialog {
 	FontData fontData;
 	RGB rgb;
 	boolean open;

 /**
  * Constructs a new instance of this class given only its
  * parent.
  * <p>
  * Note: Currently, null can be passed in for the parent.
  * This has the effect of creating the dialog on the currently active
  * display if there is one. If there is no current display, the
  * dialog is created on a "default" display. <b>Passing in null as
  * the parent is not considered to be good coding style,
  * and may not be supported in a future release of SWT.</b>
  * </p>
  *
  * @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>
  * Note: Currently, null can be passed in for the parent.
  * This has the effect of creating the dialog on the currently active
  * display if there is one. If there is no current display, the
  * dialog is created on a "default" display. <b>Passing in null as
  * the parent is not considered to be good coding style,
  * and may not be supported in a future release of SWT.</b>
  * </p>
  *
  * @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, int style) {
 	super (parent, style);
 	checkSubclass ();
 }

 /**
  * 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 the currently selected color in the receiver.
  *
  * @return the RGB value for the selected color, may be null
  *
  * @see PaletteData#getRGBs
  *
  * @since 2.1
  */
 public RGB getRGB () {
 	return rgb;
 }

 int fontProc (int nextHandler, int theEvent, int userData) {
 	int kind = OS.GetEventKind (theEvent);
 	switch (kind) {
 		case OS.kEventFontPanelClosed:
 			open = false;
 			break;
 		case OS.kEventFontSelection:
 			if (fontData == null) fontData = new FontData();
 			int [] fontID = new int [1];
 			if (OS.GetEventParameter (theEvent, OS.kEventParamATSUFontID, OS.typeUInt32, null, 4, null, fontID) == OS.noErr) {
 				int [] actualLength = new int [1];
 				OS.ATSUFindFontName (fontID [0], OS.kFontFamilyName, OS.kFontNoPlatformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, 0, null, actualLength, null);
 				byte [] buffer = new byte [actualLength [0]];
 				OS.ATSUFindFontName (fontID [0], OS.kFontFamilyName, OS.kFontNoPlatformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, buffer.length, buffer, actualLength, null);
 				String name = new String(buffer);
 				fontData.setName (name);
 			}
 			short [] fontStyle = new short [1];
 			if (OS.GetEventParameter (theEvent, OS.kEventParamFMFontStyle, OS.typeSInt16, null, 2, null, fontStyle) == OS.noErr) {
 				int style = SWT.NORMAL;
 				if ((fontStyle [0] & OS.bold) != 0) style |= SWT.BOLD;
 				if ((fontStyle [0] & OS.italic) != 0) style |= SWT.ITALIC;
 				fontData.setStyle (style);
 			}
 			short [] fontSize = new short [1];
 			if (OS.GetEventParameter (theEvent, OS.kEventParamFMFontSize, OS.typeSInt16, null, 2, null, fontSize) == OS.noErr) {
 				fontData.setHeight (fontSize [0]);
 			}
 			// NEEDS WORK - color not supported in native dialog for Carbon
 			RGBColor color = new RGBColor ();
 			int [] actualSize = new int [1];
 			if (OS.GetEventParameter (theEvent, OS.kEventParamFontColor, OS.typeRGBColor, null, RGBColor.sizeof, actualSize, color) == OS.noErr) {
 				int red = (color.red >> 8) & 0xFF;
 				int green = (color.green >> 8) & 0xFF;
 				int blue =	(color.blue >> 8) & 0xFF;
 				rgb = new RGB(red, green, blue);
 			}
 			break;
 	}
 	return OS.noErr;
 }

 /**
  * 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 () {
 	FontSelectionQDStyle qdStyle = new FontSelectionQDStyle();
 	qdStyle.version = OS.kFontSelectionQDStyleVersionZero;
 	// NEEDS WORK - color not supported in native dialog for Carbon
 	if (rgb != null) {
 		qdStyle.hasColor = true;
 		qdStyle.color_red = (short)(rgb.red * 257);
 		qdStyle.color_green = (short)(rgb.green * 257);
 		qdStyle.color_blue = (short)(rgb.blue * 257);
 	}
 	if (fontData != null) {
 		String familyName = fontData.name;
 		byte [] buffer = new byte [256];
 		int length = familyName.length();
 		if (length > 255) length = 255;
 		buffer [0] = (byte)length;
 		for (int i=0; i<length; i++) {
 			buffer [i+1] = (byte) familyName.charAt(i);
 		}
 		int id = OS.FMGetFontFamilyFromName (buffer);
 		if (id == OS.kInvalidFontFamily) id = OS.GetAppFont();
 		qdStyle.instance_fontFamily = (short)id;
 		int style = fontData.style;
 		int fontStyle = OS.normal;
 		if ((style & SWT.BOLD) != 0) fontStyle |= OS.bold;
 		if ((style & SWT.ITALIC) != 0) fontStyle |= OS.italic;
 		qdStyle.instance_fontStyle = (short)fontStyle;
 		qdStyle.size = (short)fontData.height;
 	}
 	int ptr = OS.NewPtr(FontSelectionQDStyle.sizeof);
 	OS.memcpy (ptr, qdStyle, FontSelectionQDStyle.sizeof);
 	OS.SetFontInfoForSelection(OS.kFontSelectionQDType, 1, ptr, 0);
 	OS.DisposePtr (ptr);
 	int[] mask = new int[] {
 		OS.kEventClassFont, OS.kEventFontSelection,
 		OS.kEventClassFont, OS.kEventFontPanelClosed,
 	};
 	Callback fontPanelCallback = new Callback (this, "fontProc", 3);
 	int appTarget = OS.GetApplicationEventTarget ();
 	int [] outRef = new int [1];
 	OS.InstallEventHandler (appTarget, fontPanelCallback.getAddress(), mask.length / 2, mask, 0, outRef);
 	fontData = null;
 	rgb = null;
 	open = true;
 	OS.FPShowHideFontPanel ();
 	Display display = parent.display;
 	while (!parent.isDisposed() && open) {
 		if (!display.readAndDispatch ()) display.sleep ();
 	};
 	OS.RemoveEventHandler (outRef [0]);
 	fontPanelCallback.dispose ();
 	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 [])
  */
 public void setFontData (FontData fontData) {
 	this.fontData = fontData;
 }

 /**
  * Sets a 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
  * @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 receiver's selected color to be the argument.
  *
  * @param rgb the new RGB value for the selected color, may be
  *        null to let the platform to select a default when
  *        open() is called
  *
  * @see PaletteData#getRGBs
  *
  * @since 2.1
  */
 public void setRGB (RGB rgb) {
 	this.rgb = rgb;
 }

 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-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.carbon.OS;
	import org.eclipse.swt.internal.carbon.FontSelectionQDStyle;
	import org.eclipse.swt.internal.Callback;
	import org.eclipse.swt.internal.carbon.RGBColor;

	/**
	* Instances of this class allow the user to select a font
	* from all available fonts in the system.
	* <p>
	* IMPORTANT: This class is intended to be subclassed <em>only</em>
	* within the SWT implementation.
	* </p>
	*/
	public class FontDialog extends Dialog {
	FontData fontData;
	RGB rgb;
	boolean open;

	/**
	* Constructs a new instance of this class given only its
	* parent.
	* <p>
	* Note: Currently, null can be passed in for the parent.
	* This has the effect of creating the dialog on the currently active
	* display if there is one. If there is no current display, the
	* dialog is created on a "default" display. <b>Passing in null as
	* the parent is not considered to be good coding style,
	* and may not be supported in a future release of SWT.</b>
	* </p>
	*
	* @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>
	* Note: Currently, null can be passed in for the parent.
	* This has the effect of creating the dialog on the currently active
	* display if there is one. If there is no current display, the
	* dialog is created on a "default" display. <b>Passing in null as
	* the parent is not considered to be good coding style,
	* and may not be supported in a future release of SWT.</b>
	* </p>
	*
	* @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, int style) {
	super (parent, style);
	checkSubclass ();
	}

	/**
	* 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 the currently selected color in the receiver.
	*
	* @return the RGB value for the selected color, may be null
	*
	* @see PaletteData#getRGBs
	*
	* @since 2.1
	*/
	public RGB getRGB () {
	return rgb;
	}

	int fontProc (int nextHandler, int theEvent, int userData) {
	int kind = OS.GetEventKind (theEvent);
	switch (kind) {
	case OS.kEventFontPanelClosed:
	open = false;
	break;
	case OS.kEventFontSelection:
	if (fontData == null) fontData = new FontData();
	int [] fontID = new int [1];
	if (OS.GetEventParameter (theEvent, OS.kEventParamATSUFontID, OS.typeUInt32, null, 4, null, fontID) == OS.noErr) {
	int [] actualLength = new int [1];
	OS.ATSUFindFontName (fontID [0], OS.kFontFamilyName, OS.kFontNoPlatformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, 0, null, actualLength, null);
	byte [] buffer = new byte [actualLength [0]];
	OS.ATSUFindFontName (fontID [0], OS.kFontFamilyName, OS.kFontNoPlatformCode, OS.kFontNoScriptCode, OS.kFontNoLanguageCode, buffer.length, buffer, actualLength, null);
	String name = new String(buffer);
	fontData.setName (name);
	}
	short [] fontStyle = new short [1];
	if (OS.GetEventParameter (theEvent, OS.kEventParamFMFontStyle, OS.typeSInt16, null, 2, null, fontStyle) == OS.noErr) {
	int style = SWT.NORMAL;
	if ((fontStyle [0] & OS.bold) != 0) style \|= SWT.BOLD;
	if ((fontStyle [0] & OS.italic) != 0) style \|= SWT.ITALIC;
	fontData.setStyle (style);
	}
	short [] fontSize = new short [1];
	if (OS.GetEventParameter (theEvent, OS.kEventParamFMFontSize, OS.typeSInt16, null, 2, null, fontSize) == OS.noErr) {
	fontData.setHeight (fontSize [0]);
	}
	// NEEDS WORK - color not supported in native dialog for Carbon
	RGBColor color = new RGBColor ();
	int [] actualSize = new int [1];
	if (OS.GetEventParameter (theEvent, OS.kEventParamFontColor, OS.typeRGBColor, null, RGBColor.sizeof, actualSize, color) == OS.noErr) {
	int red = (color.red >> 8) & 0xFF;
	int green = (color.green >> 8) & 0xFF;
	int blue = (color.blue >> 8) & 0xFF;
	rgb = new RGB(red, green, blue);
	}
	break;
	}
	return OS.noErr;
	}

	/**
	* 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 () {
	FontSelectionQDStyle qdStyle = new FontSelectionQDStyle();
	qdStyle.version = OS.kFontSelectionQDStyleVersionZero;
	// NEEDS WORK - color not supported in native dialog for Carbon
	if (rgb != null) {
	qdStyle.hasColor = true;
	qdStyle.color_red = (short)(rgb.red * 257);
	qdStyle.color_green = (short)(rgb.green * 257);
	qdStyle.color_blue = (short)(rgb.blue * 257);
	}
	if (fontData != null) {
	String familyName = fontData.name;
	byte [] buffer = new byte [256];
	int length = familyName.length();
	if (length > 255) length = 255;
	buffer [0] = (byte)length;
	for (int i=0; i<length; i++) {
	buffer [i+1] = (byte) familyName.charAt(i);
	}
	int id = OS.FMGetFontFamilyFromName (buffer);
	if (id == OS.kInvalidFontFamily) id = OS.GetAppFont();
	qdStyle.instance_fontFamily = (short)id;
	int style = fontData.style;
	int fontStyle = OS.normal;
	if ((style & SWT.BOLD) != 0) fontStyle \|= OS.bold;
	if ((style & SWT.ITALIC) != 0) fontStyle \|= OS.italic;
	qdStyle.instance_fontStyle = (short)fontStyle;
	qdStyle.size = (short)fontData.height;
	}
	int ptr = OS.NewPtr(FontSelectionQDStyle.sizeof);
	OS.memcpy (ptr, qdStyle, FontSelectionQDStyle.sizeof);
	OS.SetFontInfoForSelection(OS.kFontSelectionQDType, 1, ptr, 0);
	OS.DisposePtr (ptr);
	int[] mask = new int[] {
	OS.kEventClassFont, OS.kEventFontSelection,
	OS.kEventClassFont, OS.kEventFontPanelClosed,
	};
	Callback fontPanelCallback = new Callback (this, "fontProc", 3);
	int appTarget = OS.GetApplicationEventTarget ();
	int [] outRef = new int [1];
	OS.InstallEventHandler (appTarget, fontPanelCallback.getAddress(), mask.length / 2, mask, 0, outRef);
	fontData = null;
	rgb = null;
	open = true;
	OS.FPShowHideFontPanel ();
	Display display = parent.display;
	while (!parent.isDisposed() && open) {
	if (!display.readAndDispatch ()) display.sleep ();
	};
	OS.RemoveEventHandler (outRef [0]);
	fontPanelCallback.dispose ();
	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 [])
	*/
	public void setFontData (FontData fontData) {
	this.fontData = fontData;
	}

	/**
	* Sets a 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
	* @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 receiver's selected color to be the argument.
	*
	* @param rgb the new RGB value for the selected color, may be
	* null to let the platform to select a default when
	* open() is called
	*
	* @see PaletteData#getRGBs
	*
	* @since 2.1
	*/
	public void setRGB (RGB rgb) {
	this.rgb = rgb;
	}

	}