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root/radiance/ray/src/qtrvu/rvuwidget.cxx
Revision: 1.1
Committed: Sat Oct 22 22:38:10 2011 UTC (12 years, 8 months ago) by greg
Branch: MAIN
CVS Tags: rad4R2P2, rad4R2, rad4R1, rad4R2P1
Log Message:
Added qt interface for rvu and cmake files from Bill Hoffman

File Contents

# Content
1 #include "rvuwidget.h"
2
3 #include <QtGui/QApplication>
4 #include <QtGui/QCursor>
5 #include <QtGui/QColor>
6 #include <QtGui/QPainter>
7 #include <QtGui/QPixmap>
8 #include <QtGui/QMouseEvent>
9
10 RvuWidget::RvuWidget(QWidget* parent) : QWidget(parent), m_x(0), m_y(0)
11 {
12 m_image = new QPixmap(200, 200);
13 m_image->fill(QColor(0, 0, 0));
14 m_painter = new QPainter(m_image);
15 m_do_pick = false;
16 }
17
18 RvuWidget::~RvuWidget()
19 {
20 m_painter->end();
21 delete m_painter;
22 delete m_image;
23 }
24
25 void RvuWidget::resizeImage(int X, int Y)
26 {
27 m_painter->end();
28 delete m_image;
29 m_image = new QPixmap(X, Y);
30 m_image->fill(QColor(0, 0, 0));
31 m_painter->begin(m_image);
32 m_painter->setPen(Qt::NoPen);
33 }
34
35 void RvuWidget::drawRect(int x, int y, int width, int height,
36 const QColor &color)
37 {
38 m_painter->fillRect(x, y, width, height, color);
39 }
40
41 void RvuWidget::getPosition(int *x, int *y)
42 {
43 this->m_do_pick = true;
44 while(this->m_do_pick)
45 {
46 QApplication::processEvents();
47 }
48 *x = m_x;
49 *y = m_y;
50 }
51
52 void RvuWidget::paintEvent(QPaintEvent *)
53 {
54 QPainter painter(this);
55 // Draw QImage
56 painter.drawPixmap(0, 0, *m_image);
57
58 // Draw the crosshairs
59 painter.setPen(QColor(0, 255, 0));
60 painter.drawLine(m_x - 10, m_y, m_x + 10, m_y);
61 painter.drawLine(m_x, m_y - 10, m_x, m_y + 10);
62 }
63
64 void RvuWidget::mousePressEvent(QMouseEvent *event)
65 {
66 if (event->button() == Qt::LeftButton)
67 {
68 this->m_do_pick = false;
69 // Set the cursor position
70 m_x = event->x();
71 m_y = event->y();
72 }
73 this->repaint();
74 }
75
76 void RvuWidget::setPosition(int x, int y)
77 {
78 m_x = x;
79 m_y = y;
80 this->repaint();
81 }