Mercurial > projects > dwt-linux
view dwt/widgets/TrayItem.d @ 364:2bcb17ebe0be default tip
fix: thx torhu
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 08 Nov 2009 20:57:46 +0100 |
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.TrayItem; import dwt.dwthelper.utils; import dwt.DWT; import dwt.widgets.Tray; import dwt.widgets.ToolTip; import dwt.widgets.ImageList; import dwt.widgets.Item; import dwt.events.SelectionListener; import dwt.events.SelectionEvent; import dwt.events.MenuDetectListener; import dwt.widgets.TypedListener; import dwt.graphics.Image; import dwt.graphics.Rectangle; import dwt.graphics.Region; import dwt.internal.gtk.OS; import Math = tango.math.Math; import tango.util.Convert; /** * Instances of this class represent icons that can be placed on the * system tray or task bar status area. * <p> * <dl> * <dt><b>Styles:</b></dt> * <dd>(none)</dd> * <dt><b>Events:</b></dt> * <dd>DefaultSelection, MenuDetect, Selection</dd> * </dl> * </p><p> * IMPORTANT: This class is <em>not</em> intended to be subclassed. * </p> * * @see <a href="http://www.eclipse.org/swt/snippets/#tray">Tray, TrayItem snippets</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> * * @since 3.0 */ public class TrayItem : Item { Tray parent; ToolTip toolTip; String toolTipText; GtkWidget* imageHandle; GtkWidget* tooltipsHandle; ImageList imageList; /** * Constructs a new instance of this class given its parent * (which must be a <code>Tray</code>) and a style value * describing its behavior and appearance. The item is added * to the end of the items maintained by its parent. * <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 (Tray parent, int style) { super (parent, style); this.parent = parent; createWidget (parent.getItemCount ()); } /** * Adds the listener to the collection of listeners who will * be notified when the platform-specific context menu trigger * has occurred, by sending it one of the messages defined in * the <code>MenuDetectListener</code> interface. * * @param listener the listener which should be notified * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @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> * * @see MenuDetectListener * @see #removeMenuDetectListener * * @since 3.3 */ public void addMenuDetectListener (MenuDetectListener listener) { checkWidget (); if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); TypedListener typedListener = new TypedListener (listener); addListener (DWT.MenuDetect, typedListener); } /** * Adds the listener to the collection of listeners who will * be notified when the receiver is selected by the user, by sending * it one of the messages defined in the <code>SelectionListener</code> * interface. * <p> * <code>widgetSelected</code> is called when the receiver is selected * <code>widgetDefaultSelected</code> is called when the receiver is double-clicked * </p> * * @param listener the listener which should be notified when the receiver is selected by the user * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @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> * * @see SelectionListener * @see #removeSelectionListener * @see SelectionEvent */ public void addSelectionListener(SelectionListener listener) { checkWidget (); if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); TypedListener typedListener = new TypedListener (listener); addListener (DWT.Selection, typedListener); addListener (DWT.DefaultSelection, typedListener); } protected override void checkSubclass () { if (!isValidSubclass ()) error (DWT.ERROR_INVALID_SUBCLASS); } override void createWidget (int index) { super.createWidget (index); parent.createItem (this, index); } override void createHandle (int index) { state |= HANDLE; handle = OS.gtk_plug_new (0); if (handle is null) error (DWT.ERROR_NO_HANDLES); imageHandle = OS.gtk_image_new (); if (imageHandle is null) error (DWT.ERROR_NO_HANDLES); OS.gtk_container_add (cast(GtkContainer*)handle, imageHandle); OS.gtk_widget_show (handle); OS.gtk_widget_show (imageHandle); auto id = OS.gtk_plug_get_id (cast(GtkPlug*)handle); int monitor = 0; auto screen = OS.gdk_screen_get_default (); if (screen !is null) { monitor = OS.gdk_screen_get_number (screen); } auto trayAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_S" ~ to!(String)(monitor)), true); auto xTrayAtom = OS.gdk_x11_atom_to_xatom (trayAtom); auto xDisplay = OS.GDK_DISPLAY (); auto trayWindow = OS.XGetSelectionOwner (xDisplay, xTrayAtom); auto messageAtom = OS.gdk_atom_intern (toStringz("_NET_SYSTEM_TRAY_OPCODE"), true); auto xMessageAtom = OS.gdk_x11_atom_to_xatom (messageAtom); XClientMessageEvent* event = cast(XClientMessageEvent*)OS.g_malloc (XClientMessageEvent.sizeof);; event.type = OS.ClientMessage; event.window = trayWindow; event.message_type = xMessageAtom; event.format = 32; event.data.l [0] = OS.GDK_CURRENT_TIME; event.data.l [1] = OS.SYSTEM_TRAY_REQUEST_DOCK; event.data.l [2] = id; OS.XSendEvent (xDisplay, trayWindow, false, OS.NoEventMask, cast(XEvent*) event); OS.g_free (event); } override void deregister () { super.deregister (); display.removeWidget (imageHandle); } override void destroyWidget () { parent.destroyItem (this); releaseHandle (); } /** * Returns the receiver's parent, which must be a <code>Tray</code>. * * @return the receiver's parent * * @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> * * @since 3.2 */ public Tray getParent () { checkWidget (); return parent; } /** * Returns the receiver's tool tip, or null if it has * not been set. * * @return the receiver's tool tip text * * @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> * * @since 3.2 */ public ToolTip getToolTip () { checkWidget (); return toolTip; } /** * Returns the receiver's tool tip text, or null if it has * not been set. * * @return the receiver's tool tip text * * @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 String getToolTipText () { checkWidget (); return toolTipText; } override int /*long*/ gtk_button_press_event (GtkWidget* widget, GdkEventButton* event) { if (event.type is OS.GDK_3BUTTON_PRESS) return 0; if (event.button is 3 && event.type is OS.GDK_BUTTON_PRESS) { sendEvent (DWT.MenuDetect); return 0; } if (event.type is OS.GDK_2BUTTON_PRESS) { postEvent (DWT.DefaultSelection); } else { postEvent (DWT.Selection); } return 0; } override int /*long*/ gtk_size_allocate (GtkWidget* widget, int /*long*/ allocation) { if (image !is null && image.mask !is null) { if (OS.gdk_drawable_get_depth (image.mask) is 1) { int xoffset = cast(int) Math.floor (OS.GTK_WIDGET_X (widget) + ((OS.GTK_WIDGET_WIDTH (widget) - OS.GTK_WIDGET_REQUISITION_WIDTH (widget)) * 0.5) + 0.5); int yoffset = cast(int) Math.floor (OS.GTK_WIDGET_Y (widget) + ((OS.GTK_WIDGET_HEIGHT (widget) - OS.GTK_WIDGET_REQUISITION_HEIGHT (widget)) * 0.5) + 0.5); Rectangle b = image.getBounds(); auto gdkImage = OS.gdk_drawable_get_image (image.mask, 0, 0, b.width, b.height); if (gdkImage is null) DWT.error(DWT.ERROR_NO_HANDLES); byte[] maskData = (cast(byte*)gdkImage.mem)[ 0 .. gdkImage.bpl * gdkImage.height].dup; Region region = new Region (display); for (int y = 0; y < b.height; y++) { for (int x = 0; x < b.width; x++) { int index = (y * gdkImage.bpl) + (x >> 3); int theByte = maskData [index] & 0xFF; int mask = 1 << (x & 0x7); if ((theByte & mask) !is 0) { region.add (xoffset + x, yoffset + y, 1, 1); } } } OS.g_object_unref (gdkImage); OS.gtk_widget_realize (handle); auto window = OS.GTK_WIDGET_WINDOW (handle); OS.gdk_window_shape_combine_region (window, region.handle, 0, 0); region.dispose (); } } return 0; } override void hookEvents () { int eventMask = OS.GDK_BUTTON_PRESS_MASK; OS.gtk_widget_add_events (handle, eventMask); OS.g_signal_connect_closure_by_id (handle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT], false); OS.g_signal_connect_closure_by_id (imageHandle, display.signalIds [SIZE_ALLOCATE], 0, display.closures [SIZE_ALLOCATE], false); } /** * Returns <code>true</code> if the receiver is visible and * <code>false</code> otherwise. * * @return the receiver's visibility * * @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 bool getVisible () { checkWidget (); return OS.GTK_WIDGET_VISIBLE (handle); } override void register () { super.register (); display.addWidget (imageHandle, this); } override void releaseHandle () { if (handle !is null) OS.gtk_widget_destroy (handle); handle = imageHandle = null; super.releaseHandle (); parent = null; } override void releaseWidget () { super.releaseWidget (); if (tooltipsHandle !is null) OS.g_object_unref (tooltipsHandle); tooltipsHandle = null; if (imageList !is null) imageList.dispose (); imageList = null; toolTipText = null; } /** * Removes the listener from the collection of listeners who will * be notified when the platform-specific context menu trigger has * occurred. * * @param listener the listener which should no longer be notified * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @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> * * @see MenuDetectListener * @see #addMenuDetectListener * * @since 3.3 */ public void removeMenuDetectListener (MenuDetectListener listener) { checkWidget (); if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); if (eventTable is null) return; eventTable.unhook (DWT.MenuDetect, listener); } /** * Removes the listener from the collection of listeners who will * be notified when the receiver is selected by the user. * * @param listener the listener which should no longer be notified * * @exception IllegalArgumentException <ul> * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> * </ul> * @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> * * @see SelectionListener * @see #addSelectionListener */ public void removeSelectionListener (SelectionListener listener) { checkWidget (); if (listener is null) error (DWT.ERROR_NULL_ARGUMENT); if (eventTable is null) return; eventTable.unhook (DWT.Selection, listener); eventTable.unhook (DWT.DefaultSelection, listener); } /** * Sets the receiver's image. * * @param image the new image * * @exception IllegalArgumentException <ul> * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li> * </ul> * @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 override void setImage (Image image) { checkWidget (); if (image !is null && image.isDisposed ()) error (DWT.ERROR_INVALID_ARGUMENT); this.image = image; if (image !is null) { Rectangle rect = image.getBounds (); OS.gtk_widget_set_size_request (handle, rect.width, rect.height); if (imageList is null) imageList = new ImageList (); int imageIndex = imageList.indexOf (image); if (imageIndex is -1) { imageIndex = imageList.add (image); } else { imageList.put (imageIndex, image); } auto pixbuf = imageList.getPixbuf (imageIndex); OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, pixbuf); OS.gtk_widget_show (imageHandle); } else { OS.gtk_widget_set_size_request (handle, 1, 1); OS.gtk_image_set_from_pixbuf (cast(GtkImage*)imageHandle, null); OS.gtk_widget_hide (imageHandle); } } /** * Sets the receiver's tool tip to the argument, which * may be null indicating that no tool tip should be shown. * * @param toolTip the new tool tip (or null) * * @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> * * @since 3.2 */ public void setToolTip (ToolTip toolTip) { checkWidget (); ToolTip oldTip = this.toolTip, newTip = toolTip; if (oldTip !is null) oldTip.item = null; this.toolTip = newTip; if (newTip !is null) newTip.item = this; } /** * Sets the receiver's tool tip text to the argument, which * may be null indicating that no tool tip text should be shown. * * @param value the new tool tip text (or null) * * @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 void setToolTipText (String string) { checkWidget (); toolTipText = string; char* buffer = null; if (string !is null && string.length > 0) { buffer = toStringz( string ); } if (tooltipsHandle is null) { tooltipsHandle = cast(GtkWidget*)OS.gtk_tooltips_new (); if (tooltipsHandle is null) error (DWT.ERROR_NO_HANDLES); OS.g_object_ref (cast(GObject*)tooltipsHandle); OS.gtk_object_sink (cast(GtkObject*)tooltipsHandle); } OS.gtk_tooltips_set_tip (cast(GtkTooltips*)tooltipsHandle, handle, buffer, null); } /** * Makes the receiver visible if the argument is <code>true</code>, * and makes it invisible otherwise. * * @param visible the new visibility state * * @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 void setVisible (bool visible) { checkWidget (); if (OS.GTK_WIDGET_VISIBLE (handle) is visible) return; if (visible) { /* * It is possible (but unlikely), that application * code could have disposed the widget in the show * event. If this happens, just return. */ sendEvent (DWT.Show); if (isDisposed ()) return; OS.gtk_widget_show (handle); } else { OS.gtk_widget_hide (handle); sendEvent (DWT.Hide); } } }