1 /*
2 * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
3 * Copyright (C) 2009 Girish Ramakrishnan <girish@forwardbias.in>
4 * Copyright (C) 2006 George Staikos <staikos@kde.org>
5 * Copyright (C) 2006 Dirk Mueller <mueller@kde.org>
6 * Copyright (C) 2006 Zack Rusin <zack@kde.org>
7 * Copyright (C) 2006 Simon Hausmann <hausmann@kde.org>
8 *
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
28 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #ifndef webview_h
34 #define webview_h
35
36 #include "fpstimer.h"
37 #include "webpage.h"
38 #include <qwebview.h>
39 #include <qgraphicswebview.h>
40 #include <QGraphicsView>
41 #include <QGraphicsWidget>
42 #include <QTime>
43
44 QT_BEGIN_NAMESPACE
45 class QStateMachine;
46 QT_END_NAMESPACE
47
48 class WebViewTraditional : public QWebView {
49 Q_OBJECT
50
51 public:
WebViewTraditional(QWidget * parent)52 WebViewTraditional(QWidget* parent) : QWebView(parent) {}
53
54 protected:
55 virtual void contextMenuEvent(QContextMenuEvent*);
56 virtual void mousePressEvent(QMouseEvent*);
57 };
58
59
60 class GraphicsWebView : public QGraphicsWebView {
61 Q_OBJECT
62
63 public:
QGraphicsWebView(parent)64 GraphicsWebView(QGraphicsItem* parent = 0) : QGraphicsWebView(parent) {};
65
66 protected:
67 virtual void contextMenuEvent(QGraphicsSceneContextMenuEvent*);
68 virtual void mousePressEvent(QGraphicsSceneMouseEvent*);
69 };
70
71
72 class WebViewGraphicsBased : public QGraphicsView {
73 Q_OBJECT
74 Q_PROPERTY(qreal yRotation READ yRotation WRITE setYRotation)
75
76 public:
77 WebViewGraphicsBased(QWidget* parent);
78 void setPage(QWebPage* page);
79
setItemCacheMode(QGraphicsItem::CacheMode mode)80 void setItemCacheMode(QGraphicsItem::CacheMode mode) { graphicsWebView()->setCacheMode(mode); }
itemCacheMode()81 QGraphicsItem::CacheMode itemCacheMode() { return graphicsWebView()->cacheMode(); }
82
83 void setFrameRateMeasurementEnabled(bool enabled);
frameRateMeasurementEnabled()84 bool frameRateMeasurementEnabled() const { return m_measureFps; }
85
86 virtual void resizeEvent(QResizeEvent*);
87 virtual void paintEvent(QPaintEvent* event);
88
89 void setResizesToContents(bool b);
resizesToContents()90 bool resizesToContents() const { return m_resizesToContents; }
91
92 void setYRotation(qreal angle);
yRotation()93 qreal yRotation() const { return m_yRotation; }
94
graphicsWebView()95 GraphicsWebView* graphicsWebView() const { return m_item; }
96
97 public slots:
98 void updateFrameRate();
99 void animatedFlip();
100 void animatedYFlip();
101 void contentsSizeChanged(const QSize&);
102 void scrollRequested(int, int);
103
104 signals:
105 void currentFPSUpdated(int fps);
106
107 private:
108 GraphicsWebView* m_item;
109 int m_numPaintsTotal;
110 int m_numPaintsSinceLastMeasure;
111 QTime m_startTime;
112 QTime m_lastConsultTime;
113 QTimer* m_updateTimer;
114 bool m_measureFps;
115 qreal m_yRotation;
116 bool m_resizesToContents;
117 QStateMachine* m_machine;
118 FpsTimer m_fpsTimer;
119 };
120
setYRotation(qreal angle)121 inline void WebViewGraphicsBased::setYRotation(qreal angle)
122 {
123 QRectF r = graphicsWebView()->boundingRect();
124 graphicsWebView()->setTransform(QTransform()
125 .translate(r.width() / 2, r.height() / 2)
126 .rotate(angle, Qt::YAxis)
127 .translate(-r.width() / 2, -r.height() / 2));
128 m_yRotation = angle;
129 }
130
131 #endif
132