Mercurial > projects > dwt-linux
view dwt/widgets/FontDialog.d @ 315:21959e16bc1e
Improved Listeners access functions.
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 16 Sep 2008 15:28:21 +0200 |
parents | c0d810de7093 |
children |
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/******************************************************************************* * 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwt.widgets.FontDialog; import dwt.DWT; import dwt.DWTException; import dwt.graphics.Font; import dwt.graphics.FontData; import dwt.graphics.PaletteData; import dwt.graphics.RGB; import dwt.internal.gtk.OS; import dwt.widgets.Dialog; import dwt.widgets.Shell; import dwt.widgets.Display; import dwt.dwthelper.utils; /** * 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 DWT implementation. * </p> * * @see <a href="http://www.eclipse.org/swt/examples.php">DWT Example: ControlExample, Dialog tab</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> */ public class FontDialog : Dialog { FontData fontData; RGB rgb; /** * 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 DWTException <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 this (Shell parent) { this (parent, DWT.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>DWT</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>DWT</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 DWTException <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 this (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 is 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 DWTException <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 () { GtkWidget* handle; char* titleBytes; titleBytes = toStringz(title); Display display = parent !is null ? parent.getDisplay (): Display.getCurrent (); handle = OS.gtk_font_selection_dialog_new (titleBytes); if (parent !is null) { auto shellHandle = parent.topHandle (); OS.gtk_window_set_transient_for(handle, shellHandle); auto pixbufs = OS.gtk_window_get_icon_list (shellHandle); if (pixbufs !is null) { OS.gtk_window_set_icon_list (handle, pixbufs); OS.g_list_free (pixbufs); } } if (fontData !is null) { Font font = new Font (display, fontData); auto fontName = OS.pango_font_description_to_string (font.handle); font.dispose(); OS.gtk_font_selection_dialog_set_font_name (handle, fontName); OS.g_free (fontName); } display.addIdleProc (); Dialog oldModal = null; if (OS.gtk_window_get_modal (handle)) { oldModal = display.getModalDialog (); display.setModalDialog (this); } int signalId = 0; int /*long*/ hookId = 0; CallbackData emissionData; emissionData.display = display; emissionData.data = handle; if ((style & DWT.RIGHT_TO_LEFT) !is 0) { signalId = OS.g_signal_lookup (OS.map.ptr, OS.GTK_TYPE_WIDGET()); hookId = OS.g_signal_add_emission_hook (signalId, 0, &Display.emissionFunc, &emissionData, null); } int response = OS.gtk_dialog_run (handle); if ((style & DWT.RIGHT_TO_LEFT) !is 0) { OS.g_signal_remove_emission_hook (signalId, hookId); } if (OS.gtk_window_get_modal (handle)) { display.setModalDialog (oldModal); } bool success = response is OS.GTK_RESPONSE_OK; if (success) { auto fontName = OS.gtk_font_selection_dialog_get_font_name (handle); auto fontDesc = OS.pango_font_description_from_string (fontName); OS.g_free (fontName); Font font = Font.gtk_new (display, fontDesc); fontData = font.getFontData () [0]; OS.pango_font_description_free (fontDesc); } display.removeIdleProc (); OS.gtk_widget_destroy(handle); if (!success) return null; 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 !is 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; } }