1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2006 Michael Emmel mike.emmel (at) gmail.com 4 * Copyright (C) 2008 Christian Dywan <christian (at) imendio.com> 5 * Copyright (C) 2008 Collabora Ltd. 6 * Copyright (C) 2009 Holger Hans Peter Freyther 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 26 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "PlatformScreen.h" 33 34 #include "GtkVersioning.h" 35 #include "HostWindow.h" 36 #include "ScrollView.h" 37 #include "Widget.h" 38 39 #include <gtk/gtk.h> 40 41 #if PLATFORM(X11) 42 #include <gdk/gdkx.h> 43 #include <X11/Xatom.h> 44 #endif 45 46 namespace WebCore { 47 48 static GdkVisual* getVisual(Widget* widget) 49 { 50 if (!widget) 51 return 0; 52 53 GtkWidget* container = GTK_WIDGET(widget->root()->hostWindow()->platformPageClient()); 54 55 if (!container) 56 return 0; 57 58 if (!gtk_widget_get_realized(container)) { 59 GtkWidget* toplevel = gtk_widget_get_toplevel(container); 60 if (gtk_widget_is_toplevel(toplevel)) 61 container = toplevel; 62 else 63 return 0; 64 } 65 66 return gdk_window_get_visual(gtk_widget_get_window(container)); 67 } 68 69 int screenDepth(Widget* widget) 70 { 71 GdkVisual* visual = getVisual(widget); 72 if (!visual) 73 return 24; 74 return gdk_visual_get_depth(visual); 75 } 76 77 int screenDepthPerComponent(Widget* widget) 78 { 79 GdkVisual* visual = getVisual(widget); 80 if (!visual) 81 return 8; 82 83 return gdk_visual_get_bits_per_rgb(visual); 84 } 85 86 bool screenIsMonochrome(Widget* widget) 87 { 88 return screenDepth(widget) < 2; 89 } 90 91 FloatRect screenRect(Widget* widget) 92 { 93 if (!widget) 94 return FloatRect(); 95 96 GtkWidget* container = gtk_widget_get_toplevel(GTK_WIDGET(widget->root()->hostWindow()->platformPageClient())); 97 if (!gtk_widget_is_toplevel(container)) 98 return FloatRect(); 99 100 GdkScreen* screen = gtk_widget_has_screen(container) ? gtk_widget_get_screen(container) : gdk_screen_get_default(); 101 if (!screen) 102 return FloatRect(); 103 104 gint monitor = gdk_screen_get_monitor_at_window(screen, gtk_widget_get_window(GTK_WIDGET(container))); 105 GdkRectangle geometry; 106 gdk_screen_get_monitor_geometry(screen, monitor, &geometry); 107 108 return FloatRect(geometry.x, geometry.y, geometry.width, geometry.height); 109 } 110 111 FloatRect screenAvailableRect(Widget* widget) 112 { 113 if (!widget) 114 return FloatRect(); 115 116 #if PLATFORM(X11) 117 GtkWidget* container = GTK_WIDGET(widget->root()->hostWindow()->platformPageClient()); 118 if (!container) 119 return FloatRect(); 120 121 if (!gtk_widget_get_realized(container)) 122 return screenRect(widget); 123 124 GdkWindow* rootWindow = gtk_widget_get_root_window(container); 125 GdkDisplay* display = gdk_window_get_display(rootWindow); 126 Atom xproperty = gdk_x11_get_xatom_by_name_for_display(display, "_NET_WORKAREA"); 127 128 Atom retType; 129 int retFormat; 130 long *workAreaPos = NULL; 131 unsigned long retNItems; 132 unsigned long retAfter; 133 int xRes = XGetWindowProperty(GDK_DISPLAY_XDISPLAY(display), GDK_WINDOW_XWINDOW(rootWindow), xproperty, 134 0, 4, FALSE, XA_CARDINAL, &retType, &retFormat, &retNItems, &retAfter, (guchar**)&workAreaPos); 135 136 FloatRect rect; 137 if (xRes == Success && workAreaPos != NULL && retType == XA_CARDINAL && retNItems == 4 && retFormat == 32) { 138 rect = FloatRect(workAreaPos[0], workAreaPos[1], workAreaPos[2], workAreaPos[3]); 139 // rect contains the available space in the whole screen not just in the monitor 140 // containing the widget, so we intersect it with the monitor rectangle. 141 rect.intersect(screenRect(widget)); 142 } else 143 rect = screenRect(widget); 144 145 if (workAreaPos) 146 XFree(workAreaPos); 147 148 return rect; 149 #else 150 return screenRect(widget); 151 #endif 152 } 153 154 } // namespace WebCore 155
