changeset 81:c263acbfae34

FontDialog
author Frank Benoit <benoit@tionex.de>
date Tue, 15 Jan 2008 18:37:58 +0100
parents f9349a0d8101
children 4cdaacfb8649
files dwt/widgets/FontDialog.d
diffstat 1 files changed, 225 insertions(+), 0 deletions(-) [+]
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/widgets/FontDialog.d	Tue Jan 15 18:37:58 2008 +0100
@@ -0,0 +1,225 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 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
+ *******************************************************************************/
+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;
+
+static import tango.stdc.stringz;
+
+/**
+ * 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>
+ */
+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.PRIMARY_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, 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 = tango.stdc.stringz.toStringz(title);
+    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) {
+        Display display = parent !is null ? parent.display : Display.getCurrent ();
+        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 display = parent !is null ? parent.getDisplay (): Display.getCurrent ();
+    display.addIdleProc ();
+    int response = OS.gtk_dialog_run(handle);
+    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;
+}
+}