Mercurial > projects > dwt-linux
view dwt/widgets/ColorDialog.d @ 255:5a30aa9820f3
removed tango.stdc.stringz imports and allow null for arrays and string arguments.
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 15 Jun 2008 22:32:20 +0200 |
parents | ce446666f5a2 |
children | c0d810de7093 |
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/******************************************************************************* * 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module dwt.widgets.ColorDialog; import dwt.DWT; import dwt.DWTException; 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 color * from a predefined set of available colors. * <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 ColorDialog : Dialog { RGB rgb; /** * Constructs a new instance of this class given only its parent. * * @param parent a composite control 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> * * @see DWT * @see Widget#checkSubclass * @see Widget#getStyle */ 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 composite control which will be the parent of the new instance (cannot be null) * @param style the style of control 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> * * @see DWT * @see Widget#checkSubclass * @see Widget#getStyle */ public this (Shell parent, int style) { super (parent, checkStyle (parent, style)); checkSubclass (); } /** * Returns the currently selected color in the receiver. * * @return the RGB value for the selected color, may be null * * @see PaletteData#getRGBs */ public RGB getRGB () { return rgb; } /** * Makes the receiver visible and brings it to the front * of the display. * * @return the selected color, or null if the dialog was * cancelled, no color was selected, or an error * occurred * * @exception DWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public RGB open () { char* buffer = toStringz(title); auto handle = cast(GtkWidget*)OS.gtk_color_selection_dialog_new (buffer); Display display = parent !is null ? parent.getDisplay (): Display.getCurrent (); 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); } } GtkColorSelectionDialog* dialog = cast(GtkColorSelectionDialog*)handle; GdkColor color; if (rgb !is null) { color.red = cast(short)((rgb.red & 0xFF) | ((rgb.red & 0xFF) << 8)); color.green = cast(short)((rgb.green & 0xFF) | ((rgb.green & 0xFF) << 8)); color.blue = cast(short)((rgb.blue & 0xFF) | ((rgb.blue & 0xFF) << 8)); OS.gtk_color_selection_set_current_color (dialog.colorsel, &color); } OS.gtk_color_selection_set_has_palette (dialog.colorsel, true); 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) { OS.gtk_color_selection_get_current_color (dialog.colorsel, &color); int red = (color.red >> 8) & 0xFF; int green = (color.green >> 8) & 0xFF; int blue = (color.blue >> 8) & 0xFF; rgb = new RGB (red, green, blue); } display.removeIdleProc (); OS.gtk_widget_destroy (handle); if (!success) return null; return rgb; } /** * 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 select a default when * open() is called * @see PaletteData#getRGBs */ public void setRGB (RGB rgb) { this.rgb = rgb; } }