blob: 100d364105226b1174224eb6623571c0d758f7ec (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the Graphics Dojo project on Qt Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file. Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#include <QtCore>
#include <QtGui>
#include <QtWebKit>
#if QT_VERSION < 0x0040500
#error You need Qt 4.5 or newer
#endif
class NightModeView : public QWebView
{
Q_OBJECT
public:
NightModeView(QWidget *parent = 0): QWebView(parent), invert(true) {
connect(this, SIGNAL(titleChanged(const QString&)), SLOT(setWindowTitle(const QString&)));
load(QUrl("http://maps.google.com"));
}
private:
bool invert;
void paintEvent(QPaintEvent *event) {
QWebView::paintEvent(event);
if (invert) {
QPainter p(this);
p.setCompositionMode(QPainter::CompositionMode_Difference);
p.fillRect(event->rect(), Qt::white);
p.end();
}
}
void keyPressEvent(QKeyEvent *event) {
if (event->key() == Qt::Key_F3) {
invert = !invert;
update();
event->accept();
return;
}
QWebView::keyPressEvent(event);
}
};
#include "webnightmode.moc"
int main(int argc, char **argv)
{
#ifdef Q_WS_X11
QApplication::setGraphicsSystem("raster");
#endif
QApplication app(argc, argv);
NightModeView w;
w.show();
QMessageBox::information(&w, "Hint", "Use F3 to toggle night mode");
return app.exec();
}
|
