Hi there,
We discussed about that couple of days ago, lately i was give up but i have to use that so i wanna share some piece of code ,first of all i made a test project which have QGraphicsView and QGLWidget two of them have same CustomRB implementation QGraphicsView works well but QGLWidget looks like bugly , so there is my code and screenshot :
{
Q_OBJECT
public:
private :
CustomRB *rubberBand;
protected:
};
#endif // HSGVIEW_H
#include "hsgview.h"
{
rubberBand
= new CustomRB
(QRubberBand::Rectangle,
this);
}
{
origin = e->pos();
rubberBand->setUpdatesEnabled(true);
rubberBand->show();
}
{
rubberBand
->setGeometry
(QRect(origin, e
->pos
()).
normalized());
update();
}
{
rubberBand
->setGeometry
(QRect(origin, e
->pos
()).
normalized());
rubberBand->show();
}
class hsGView : public QGraphicsView
{
Q_OBJECT
public:
hsGView(QWidget *parent = 0);
private :
CustomRB *rubberBand;
QPoint origin;
protected:
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
void mouseReleaseEvent(QMouseEvent *event);
};
#endif // HSGVIEW_H
#include "hsgview.h"
hsGView::hsGView(QWidget *parent) : QGraphicsView(parent)
{
rubberBand = new CustomRB(QRubberBand::Rectangle,this);
}
void hsGView::mousePressEvent(QMouseEvent *e)
{
origin = e->pos();
rubberBand->setUpdatesEnabled(true);
rubberBand->setGeometry(QRect(origin, QSize()));
rubberBand->show();
}
void hsGView::mouseMoveEvent(QMouseEvent *e)
{
rubberBand->setGeometry(QRect(origin, e->pos()).normalized());
update();
}
void hsGView::mouseReleaseEvent(QMouseEvent *e)
{
rubberBand->setGeometry(QRect(origin, e->pos()).normalized());
rubberBand->show();
}
To copy to clipboard, switch view to plain text mode
{
Q_OBJECT
public:
private:
CustomRB *rubberBand;
protected:
void initializeGL();
void resizeGL(int w, int h);
};
#include "hsglwidget.h"
HSGLWidget
::HSGLWidget(QWidget *parent
){
rubberBand
= new CustomRB
(QRubberBand::Rectangle,
this);
}
void HSGLWidget::initializeGL()
{
}
void HSGLWidget::resizeGL( int w, int h )
{
}
{
origin = e->pos();
rubberBand->setUpdatesEnabled(true);
rubberBand->show();
}
{
rubberBand
->setGeometry
(QRect(origin, e
->pos
()).
normalized());
update();
}
void HSGLWidget
::keyPressEvent( QKeyEvent *e
) {
}
{
rubberBand
->setGeometry
(QRect(origin, e
->pos
()).
normalized());
rubberBand->show();
}
class HSGLWidget : public QGLWidget
{
Q_OBJECT
public:
HSGLWidget(QWidget *parent = 0);
private:
CustomRB *rubberBand;
QPoint origin;
protected:
void initializeGL();
void resizeGL(int w, int h);
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void keyPressEvent(QKeyEvent *e);
};
#include "hsglwidget.h"
HSGLWidget::HSGLWidget(QWidget *parent)
:QGLWidget(parent),rubberBand(0)
{
rubberBand = new CustomRB(QRubberBand::Rectangle, this);
}
void HSGLWidget::initializeGL()
{
}
void HSGLWidget::resizeGL( int w, int h )
{
}
void HSGLWidget::mousePressEvent( QMouseEvent *e )
{
origin = e->pos();
rubberBand->setUpdatesEnabled(true);
rubberBand->setGeometry(QRect(origin, QSize()));
rubberBand->show();
}
void HSGLWidget::mouseMoveEvent( QMouseEvent *e )
{
rubberBand->setGeometry(QRect(origin, e->pos()).normalized());
update();
}
void HSGLWidget::keyPressEvent( QKeyEvent *e )
{
}
void HSGLWidget::mouseReleaseEvent(QMouseEvent *e)
{
rubberBand->setGeometry(QRect(origin, e->pos()).normalized());
rubberBand->show();
}
To copy to clipboard, switch view to plain text mode
{
public:
}
protected:
{
}
{
Q_UNUSED(event);
pen.setWidth(5);
pen.setStyle(Qt::DashLine);
painter.begin(this);
painter.setPen(pen);
painter.setOpacity(0.5);
painter.setBrush(brush);
painter.drawRect(event->rect());
painter.end();
}
};
class CustomRB : public QRubberBand
{
public:
CustomRB(Shape s, QWidget *parent) : QRubberBand(s,parent) {
}
protected:
void resizeEvent(QResizeEvent *ev)
{
}
void paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QApplication::processEvents();
QPainter painter;
QPen pen = QPen(Qt::yellow);
pen.setWidth(5);
pen.setStyle(Qt::DashLine);
QBrush brush = QBrush(Qt::red);
painter.begin(this);
painter.setPen(pen);
painter.setOpacity(0.5);
painter.setBrush(brush);
painter.drawRect(event->rect());
painter.end();
}
};
To copy to clipboard, switch view to plain text mode
here is the screenshot :
QRubberBand problem on QGLWidget
Reply With Quote
Bookmarks