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#include "rvuwidget.h" |
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#include <QtGui/QApplication> |
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#include <QtGui/QCursor> |
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#include <QtGui/QColor> |
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#include <QtGui/QPainter> |
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#include <QtGui/QPixmap> |
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#include <QtGui/QMouseEvent> |
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RvuWidget::RvuWidget(QWidget* parent) : QWidget(parent), m_x(0), m_y(0) |
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{ |
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m_image = new QPixmap(200, 200); |
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m_image->fill(QColor(0, 0, 0)); |
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m_painter = new QPainter(m_image); |
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m_do_pick = false; |
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} |
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RvuWidget::~RvuWidget() |
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{ |
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m_painter->end(); |
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delete m_painter; |
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delete m_image; |
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} |
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void RvuWidget::resizeImage(int X, int Y) |
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{ |
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m_painter->end(); |
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delete m_image; |
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m_image = new QPixmap(X, Y); |
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m_image->fill(QColor(0, 0, 0)); |
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m_painter->begin(m_image); |
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m_painter->setPen(Qt::NoPen); |
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} |
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void RvuWidget::drawRect(int x, int y, int width, int height, |
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const QColor &color) |
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{ |
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m_painter->fillRect(x, y, width, height, color); |
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} |
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void RvuWidget::getPosition(int *x, int *y) |
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{ |
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this->m_do_pick = true; |
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while(this->m_do_pick) |
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{ |
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QApplication::processEvents(); |
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} |
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*x = m_x; |
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*y = m_y; |
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} |
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void RvuWidget::paintEvent(QPaintEvent *) |
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{ |
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QPainter painter(this); |
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// Draw QImage |
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painter.drawPixmap(0, 0, *m_image); |
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// Draw the crosshairs |
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painter.setPen(QColor(0, 255, 0)); |
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painter.drawLine(m_x - 10, m_y, m_x + 10, m_y); |
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painter.drawLine(m_x, m_y - 10, m_x, m_y + 10); |
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} |
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void RvuWidget::mousePressEvent(QMouseEvent *event) |
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{ |
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if (event->button() == Qt::LeftButton) |
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{ |
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this->m_do_pick = false; |
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// Set the cursor position |
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m_x = event->x(); |
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m_y = event->y(); |
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} |
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this->repaint(); |
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} |
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void RvuWidget::setPosition(int x, int y) |
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{ |
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m_x = x; |
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m_y = y; |
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this->repaint(); |
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} |
