| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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.carbon.*; |
| 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. |
| * <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; |
| boolean open; |
| int fontID, fontSize; |
| |
| /** |
| * 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 (); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| int fontProc (int nextHandler, int theEvent, int userData) { |
| int kind = OS.GetEventKind (theEvent); |
| switch (kind) { |
| case OS.kEventFontPanelClosed: |
| open = false; |
| break; |
| case OS.kEventFontSelection: |
| int [] fontID = new int [1]; |
| if (OS.GetEventParameter (theEvent, OS.kEventParamATSUFontID, OS.typeUInt32, null, 4, null, fontID) == OS.noErr) { |
| this.fontID = fontID [0]; |
| } |
| int [] fontSize = new int [1]; |
| if (OS.GetEventParameter (theEvent, OS.kEventParamATSUFontSize, OS.typeFixed, null, 4, null, fontSize) == OS.noErr) { |
| this.fontSize = fontSize [0]; |
| } |
| 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); |
| } else { |
| int [] dict = new int [1]; |
| if (OS.GetEventParameter (theEvent, OS.kEventParamDictionary, OS.typeCFDictionaryRef, null, 4, actualSize, dict) == OS.noErr) { |
| int [] attrib = new int [1]; |
| if (OS.CFDictionaryGetValueIfPresent (dict [0], OS.kFontPanelAttributesKey (), attrib)) { |
| int [] tags = new int [1]; |
| int [] sizes = new int [1]; |
| int [] values = new int [1]; |
| if (OS.CFDictionaryGetValueIfPresent (attrib [0], OS.kFontPanelAttributeTagsKey (), tags) && |
| OS.CFDictionaryGetValueIfPresent (attrib [0], OS.kFontPanelAttributeSizesKey (), sizes) && |
| OS.CFDictionaryGetValueIfPresent (attrib [0], OS.kFontPanelAttributeValuesKey (), values) |
| ) { |
| int count = OS.CFDataGetLength (tags [0]) / 4; |
| int tagPtr = OS.CFDataGetBytePtr (tags[0]); |
| int sizePtr = OS.CFDataGetBytePtr (sizes [0]); |
| int [] tag = new int [1]; |
| int [] size = new int [1]; |
| int valueOffset = 0; |
| for (int i = 0 ; i < count ; i++) { |
| OS.memmove (tag, tagPtr + (i * 4), 4); |
| OS.memmove (size, sizePtr + (i * 4), 4); |
| if (tag [0] == OS.kATSUColorTag && size[0] == RGBColor.sizeof) { |
| int valuePtr = OS.CFDataGetBytePtr (values [0]); |
| OS.memmove (color, valuePtr + valueOffset, RGBColor.sizeof); |
| 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 ; |
| } |
| valueOffset = size[0]; |
| } |
| } |
| } |
| } |
| } |
| 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 () { |
| Display display = parent != null ? parent.display : Display.getCurrent (); |
| if (fontData != null) { |
| Font font = new Font (display, fontData); |
| int ptr = OS.NewPtr (4); |
| OS.memmove (ptr, new int []{font.atsuiStyle}, 4); |
| //TODO - not sure how to set initial color in font panel |
| // if (rgb != null) { |
| // RGBColor color = new RGBColor (); |
| // rgb.red = (short) (rgb.red * 0xffff); |
| // rgb.green = (short) (rgb.green * 0xffff); |
| // rgb.blue = (short) (rgb.blue * 0xffff); |
| // int ptr1 = OS.NewPtr (RGBColor.sizeof); |
| // OS.memcpy(ptr, color, RGBColor.sizeof); |
| // int [] tags = new int []{OS.kATSUColorTag}; |
| // int [] sizes = new int []{RGBColor.sizeof}; |
| // int [] values = new int []{ptr1}; |
| // OS.ATSUSetAttributes (font.atsuiStyle, tags.length, tags, sizes, values); |
| // OS.DisposePtr(ptr1); |
| // } |
| OS.SetFontInfoForSelection (OS.kFontSelectionATSUIType, 1, ptr, 0); |
| OS.DisposePtr (ptr); |
| font.dispose (); |
| } |
| int[] mask = new int[] { |
| OS.kEventClassFont, OS.kEventFontSelection, |
| OS.kEventClassFont, OS.kEventFontPanelClosed, |
| }; |
| Callback fontPanelCallback = new Callback (this, "fontProc", 3); |
| int fontPanelCallbackAddress = fontPanelCallback.getAddress (); |
| if (fontPanelCallbackAddress == 0) SWT.error (SWT.ERROR_NO_MORE_CALLBACKS); |
| int appTarget = OS.GetApplicationEventTarget (); |
| int [] outRef = new int [1]; |
| OS.InstallEventHandler (appTarget, fontPanelCallbackAddress, mask.length / 2, mask, 0, outRef); |
| fontSize = fontID = 0; |
| fontData = null; |
| rgb = null; |
| open = true; |
| /* |
| * Feature in the Macintosh. The Fonts window is not modal and it cannot |
| * be accessed through direct API. The fix is to figure out the Fonts |
| * window by checking all available windows and set its modality |
| * explicitily. |
| */ |
| int count = 0; |
| int window = OS.GetPreviousWindow (0); |
| while (window != 0) { |
| count++; |
| window = OS.GetPreviousWindow (window); |
| } |
| int [] windows = new int [count]; |
| boolean[] visible = new boolean [count]; |
| count = 0; |
| window = OS.GetPreviousWindow (0); |
| while (window != 0) { |
| windows [count] = window; |
| visible [count] = OS.IsWindowVisible (window); |
| count++; |
| window = OS.GetPreviousWindow (window); |
| } |
| OS.FPShowHideFontPanel (); |
| int fontsWindow = 0; |
| window = OS.GetPreviousWindow (0); |
| while (window != 0 && fontsWindow == 0) { |
| if (OS.IsWindowVisible (window)) { |
| boolean found = false; |
| for (int i = 0; i < windows.length; i++) { |
| if (windows [i] == window) { |
| found = true; |
| if (!visible [i]) { |
| fontsWindow = window; |
| break; |
| } |
| } |
| } |
| if (!found) { |
| fontsWindow = window; |
| break; |
| } |
| } |
| window = OS.GetPreviousWindow (window); |
| } |
| if (fontsWindow != 0) { |
| int inModalKind = OS.kWindowModalityNone; |
| if ((style & SWT.PRIMARY_MODAL) != 0) inModalKind = OS.kWindowModalityWindowModal; |
| if ((style & SWT.APPLICATION_MODAL) != 0) inModalKind = OS.kWindowModalityAppModal; |
| if ((style & SWT.SYSTEM_MODAL) != 0) inModalKind = OS.kWindowModalitySystemModal; |
| if (inModalKind != OS.kWindowModalityNone) { |
| int inUnavailableWindow = 0; |
| if (parent != null) inUnavailableWindow = OS.GetControlOwner (parent.handle); |
| OS.SetWindowModality (fontsWindow, inModalKind, inUnavailableWindow); |
| OS.SelectWindow (fontsWindow); |
| } |
| } |
| while (!parent.isDisposed() && open) { |
| if (!display.readAndDispatch ()) display.sleep (); |
| } |
| OS.RemoveEventHandler (outRef [0]); |
| fontPanelCallback.dispose (); |
| if (fontID != 0 && fontSize != 0) { |
| int atsFont = OS.FMGetATSFontRefFromFont (fontID); |
| Font font = Font.carbon_new (display, atsFont, (short) 0, (float) OS.Fix2X (fontSize)); |
| fontData = font.getFontData ()[0]; |
| font.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 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; |
| } |
| |
| } |