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
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#include "webview.h"
#include <QMouseEvent>
#include <QWebFrame>
#include <QWebHitTestResult>
#include <QWebElement>
#include <QLinearGradient>
#include <QDebug>
WebView::WebView(QGraphicsItem * parent)
: QGraphicsWebView(parent)
, m_scrapSelectionEnabled(false)
, m_scrapRect(QRect())
, m_scrapSelected(false)
{
setAcceptHoverEvents(true);
}
void WebView::setScrapSelectionEnabled(bool enabled) {
m_scrapSelectionEnabled = enabled;
}
bool WebView::scrapSelectionEnabled() const {
return m_scrapSelectionEnabled;
}
void WebView::hoverMoveEvent(QGraphicsSceneHoverEvent* event)
{
if (!m_scrapSelectionEnabled || m_scrapSelected) {
QGraphicsWebView::hoverMoveEvent(event);
return;
}
QWebFrame* mainFrame = page()->mainFrame();
if (mainFrame != page()->frameAt(event->pos().toPoint()) ||
mainFrame->scrollBarGeometry(Qt::Horizontal).contains(event->pos().toPoint()) ||
mainFrame->scrollBarGeometry(Qt::Vertical).contains(event->pos().toPoint())) {
m_scrapRect = QRect();
QGraphicsWebView::hoverMoveEvent(event);
return;
}
QWebElement hitElement = mainFrame->hitTestContent(event->pos().toPoint()).element();
QRect hitRect = hitElement.geometry();
if ((event->modifiers() & Qt::ControlModifier) != Qt::ControlModifier) {
// So we can use Ctrl+Hover to find small items
while (hitRect.height() < 100 || hitRect.width() < 100) {
if (hitElement.isNull() || hitElement == mainFrame->documentElement())
break;
hitElement = hitElement.parent();
hitRect = hitElement.geometry();
}
}
if (hitRect.translated(-mainFrame->scrollPosition()).contains(event->pos().toPoint())) {
m_scrapRect = hitRect;
} else {
m_scrapRect = QRect();
}
QGraphicsWebView::hoverMoveEvent(event);
update();
}
void WebView::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if (!m_scrapSelectionEnabled) {
QGraphicsWebView::mousePressEvent(event);
return;
}
if (page()->mainFrame()->scrollBarGeometry(Qt::Horizontal).contains(event->pos().toPoint()) ||
page()->mainFrame()->scrollBarGeometry(Qt::Vertical).contains(event->pos().toPoint())) {
QGraphicsWebView::mousePressEvent(event);
return;
}
if (m_scrapRect.isValid()) {
if (!m_scrapSelected) {
m_scrapSelected = true;
update();
qDebug() << "selected scrap rect" << m_scrapRect;
}
} else {
QGraphicsWebView::mousePressEvent(event);
return;
}
}
void WebView::keyPressEvent(QKeyEvent *event) {
if (!m_scrapSelectionEnabled && event->key() == Qt::Key_Escape) {
m_scrapSelected = false;
update();
return;
}
QGraphicsWebView::keyPressEvent(event);
}
void WebView::paint(QPainter* painter, const QStyleOptionGraphicsItem* options, QWidget* widget)
{
QGraphicsWebView::paint(painter, options, widget);
if (!m_scrapSelectionEnabled)
return;
QPainterPath pageAreaPath, greyedoutPath;
QPainterPath scrollbars;
if (page() && page()->mainFrame()) {
pageAreaPath.addRect(page()->mainFrame()->geometry());
scrollbars.addRect(page()->mainFrame()->scrollBarGeometry(Qt::Horizontal));
scrollbars.addRect(page()->mainFrame()->scrollBarGeometry(Qt::Vertical));
pageAreaPath -= scrollbars;
}
greyedoutPath = pageAreaPath;
if (m_scrapRect.isValid()) {
QPainterPath scrapPath;
QRect scrapRect = m_scrapRect.translated(-page()->mainFrame()->scrollPosition());
scrapPath.addRect(scrapRect);
greyedoutPath -= scrapPath;
}
painter->setClipPath(greyedoutPath);
painter->setPen(Qt::NoPen);
painter->setBrush(QBrush(Qt::black));
painter->setOpacity(0.5);
painter->drawRect(rect());
if (m_scrapRect.isValid()) {
QRect scrapRect = m_scrapRect.translated(-page()->mainFrame()->scrollPosition());
painter->setClipPath(pageAreaPath);
painter->setOpacity(1);
painter->setPen(QPen(Qt::white, 2));
painter->setBrush(Qt::NoBrush);
painter->drawRect(scrapRect);
if (m_scrapSelected) {
QList<QPoint> nodes;
nodes << scrapRect.topLeft() << scrapRect.topRight();
nodes << scrapRect.bottomLeft() << scrapRect.bottomRight();
nodes << QPoint(scrapRect.center().x(), scrapRect.top());
nodes << QPoint(scrapRect.center().x(), scrapRect.bottom());
nodes << QPoint(scrapRect.left(), scrapRect.center().y());
nodes << QPoint(scrapRect.right(), scrapRect.center().y());
foreach(QPoint node, nodes) {
QLinearGradient g(node - QPointF(5, 5), node + QPointF(5, 5));
g.setColorAt(0, Qt::white);
g.setColorAt(0.9, Qt::black);
painter->setBrush(g);
painter->setPen(Qt::NoPen);
painter->drawEllipse(node, 5, 5);
}
}
}
}
|
