src/qtrvu/rvuwidget.cxx

#include "rvuwidget.h"

#include <QApplication>
#include <QCursor>
#include <QColor>
#include <QPainter>
#include <QPixmap>
#include <QMouseEvent>

RvuWidget::RvuWidget(QWidget* parent) : QWidget(parent), m_x(0), m_y(0)
{
  m_image = new QPixmap(200, 200);
  m_image->fill(QColor(0, 0, 0));
  m_painter = new QPainter(m_image);
  m_do_pick = false;
}

RvuWidget::~RvuWidget()
{
  m_painter->end();
  delete m_painter;
  delete m_image;
}

void RvuWidget::resizeImage(int X, int Y)
{
  m_painter->end();
  delete m_image;
  m_image =  new QPixmap(X, Y);
  m_image->fill(QColor(0, 0, 0));
  m_painter->begin(m_image);
  m_painter->setPen(Qt::NoPen);
}

void RvuWidget::drawRect(int x, int y, int width, int height,
                         const QColor &color)
{
  m_painter->fillRect(x, y, width, height, color);
}

void RvuWidget::getPosition(int *x, int *y)
{
  this->m_do_pick = true;
  while(this->m_do_pick)
    {
    QApplication::processEvents();
    }
  *x = m_x;
  *y = m_y;
}

void RvuWidget::paintEvent(QPaintEvent *)
{
  QPainter painter(this);
  // Draw QImage
  painter.drawPixmap(0, 0, *m_image);

  // Draw the crosshairs
  painter.setPen(QColor(0, 255, 0));
  painter.drawLine(m_x - 10, m_y, m_x + 10, m_y);
  painter.drawLine(m_x, m_y - 10, m_x, m_y + 10);
}

void RvuWidget::mousePressEvent(QMouseEvent *event)
{
  if (event->button() == Qt::LeftButton)
    {
    this->m_do_pick = false;
    // Set the cursor position
    m_x = event->x();
    m_y = event->y();
    }
  this->repaint();
}

void RvuWidget::setPosition(int x, int y)
{
  m_x = x;
  m_y = y;
  this->repaint();
}
Revision:	1.2
Committed:	Fri May 8 18:07:38 2015 UTC (10 years, 6 months ago) by greg
Branch:	MAIN
CVS Tags:	rad5R4, rad5R2, rad5R3, rad5R0, rad5R1, rad6R0, HEAD
Changes since 1.1:	+6 -6 lines
Log Message:	Fixes for rvu under Windows
#	User	Rev	Content
1	greg	1.1	#include "rvuwidget.h"
2
3	greg	1.2	#include <QApplication>
4			#include <QCursor>
5			#include <QColor>
6			#include <QPainter>
7			#include <QPixmap>
8			#include <QMouseEvent>
9	greg	1.1
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			}