1 /*
2 * Copyright (C) 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
4 * Copyright (C) 2008 Holger Hans Peter Freyther
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
16 * its contributors may be used to endorse or promote products derived
17 * from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
20 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "PlatformScreen.h"
33
34 #include "FloatRect.h"
35 #include "Frame.h"
36 #include "FrameView.h"
37 #include "HostWindow.h"
38 #include "Widget.h"
39 #include "QWebPageClient.h"
40 #include <QApplication>
41 #include <QDesktopWidget>
42 #include <QByteArray>
43
44 namespace WebCore {
45
wkhtmltox_screen_width()46 static int wkhtmltox_screen_width()
47 {
48 QByteArray override = qgetenv("WKHTMLTOX_SCREEN_WIDTH");
49
50 bool ok;
51 int width = override.toInt(&ok);
52 if (ok)
53 return qMax(320, qMin(7680, width));
54
55 return 1366; // default screen width
56 }
57
wkhtmltox_screen_height()58 static int wkhtmltox_screen_height()
59 {
60 QByteArray override = qgetenv("WKHTMLTOX_SCREEN_HEIGHT");
61
62 bool ok;
63 int height = override.toInt(&ok);
64 if (ok)
65 return qMax(240, qMin(4320, height));
66
67 return 768; // default screen height
68 }
69
screenNumber(Widget * w)70 static int screenNumber(Widget* w)
71 {
72 if (!w)
73 return 0;
74
75 QWebPageClient* client = w->root()->hostWindow()->platformPageClient();
76 return client ? client->screenNumber() : 0;
77 }
78
screenDepth(Widget * w)79 int screenDepth(Widget* w)
80 {
81 if (QApplication::type() == QApplication::Tty)
82 return 32;
83
84 return QApplication::desktop()->screen(screenNumber(w))->depth();
85 }
86
screenDepthPerComponent(Widget * w)87 int screenDepthPerComponent(Widget* w)
88 {
89 if (QApplication::type() == QApplication::Tty)
90 return 8;
91
92 int depth = QApplication::desktop()->screen(0)->depth();
93 if (w) {
94 QWebPageClient* client = w->root()->hostWindow()->platformPageClient();
95
96 if (client) {
97 QWidget* view = client->ownerWidget();
98 if (view)
99 depth = view->depth();
100 }
101 }
102 // An interface to establish the actual number of bits per color
103 // doesn't exist in Qt, or probably at all, so use common-sense
104 // values for each screen depth and assume RGB/RGBA where appropriate.
105 // Per http://www.w3.org/TR/css3-mediaqueries/#color, 'If different color
106 // components are represented by different number of bits, the smallest
107 // number is used.'
108 switch (depth) {
109 case 8:
110 return 2;
111 case 32:
112 return 8;
113 default:
114 return qRound(depth / 3);
115 }
116 }
117
screenIsMonochrome(Widget * w)118 bool screenIsMonochrome(Widget* w)
119 {
120 if (QApplication::type() == QApplication::Tty)
121 return false;
122
123 return QApplication::desktop()->screen(screenNumber(w))->colorCount() == 2;
124 }
125
screenRect(Widget * w)126 FloatRect screenRect(Widget* w)
127 {
128 if (QApplication::type() == QApplication::Tty)
129 return FloatRect(0,0,wkhtmltox_screen_width(),wkhtmltox_screen_height());
130
131 QRect r = QApplication::desktop()->screenGeometry(screenNumber(w));
132 return FloatRect(r.x(), r.y(), r.width(), r.height());
133 }
134
screenAvailableRect(Widget * w)135 FloatRect screenAvailableRect(Widget* w)
136 {
137 if (QApplication::type() == QApplication::Tty)
138 return FloatRect(0,0,wkhtmltox_screen_width(),wkhtmltox_screen_height());
139
140 QRect r = QApplication::desktop()->availableGeometry(screenNumber(w));
141 return FloatRect(r.x(), r.y(), r.width(), r.height());
142 }
143
144 } // namespace WebCore
145