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
|
/***************************************************************************
* Copyright (C) 2006-2007 by Rajko Albrecht *
* ral@alwins-world.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include "pannerview.h"
#include <tqpainter.h>
PannerView::PannerView(TQWidget* parent, const char* name)
: TQCanvasView(parent, name,WNoAutoErase | WStaticContents )
{
m_Moving = false;
viewport()->setBackgroundMode(TQt::NoBackground);
setBackgroundMode(TQt::NoBackground);
}
PannerView::~PannerView()
{
}
void PannerView::drawContents(TQPainter* p, int clipx, int clipy, int clipw, int cliph)
{
p->save();
TQCanvasView::drawContents(p,clipx,clipy,clipw,cliph);
p->restore();
if (m_ZoomRect.isValid()) {
p->setPen(red.dark());
p->drawRect(m_ZoomRect);
p->setPen( red);
p->drawRect(TQRect(m_ZoomRect.x()+1, m_ZoomRect.y()+1,
m_ZoomRect.width()-2, m_ZoomRect.height()-2));
}
}
void PannerView::setZoomRect(const TQRect& theValue)
{
TQRect oldRect = m_ZoomRect;
m_ZoomRect = theValue;
updateContents(oldRect);
updateContents(m_ZoomRect);
}
/*!
\fn PannerView::contentsMouseMoveEvent(TQMouseEvent* e)
*/
void PannerView::contentsMouseMoveEvent(TQMouseEvent* e)
{
if (m_Moving) {
emit zoomRectMoved(e->pos().x() - m_LastPos.x(), e->pos().y() - m_LastPos.y());
m_LastPos = e->pos();
}
}
/*!
\fn PannerView::contentsMousePressEvent(TQMouseEvent* e)
*/
void PannerView::contentsMousePressEvent(TQMouseEvent* e)
{
if (m_ZoomRect.isValid()) {
if (!m_ZoomRect.contains(e->pos())) {
emit zoomRectMoved(e->pos().x() - m_ZoomRect.center().x(),
e->pos().y() - m_ZoomRect.center().y());
}
m_Moving = true;
m_LastPos = e->pos();
}
}
/*!
\fn PannerView::contentsMouseReleaseEvent(TQMouseEvent*)
*/
void PannerView::contentsMouseReleaseEvent(TQMouseEvent*)
{
m_Moving = false;
emit zoomRectMoveFinished();
}
/*!
\fn PannerView::updateCurrentRect()
*/
void PannerView::updateCurrentRect()
{
if (m_ZoomRect.isValid()) updateContents(m_ZoomRect);
}
#include "pannerview.moc"
|
