void resizeEvent(QResizeEvent *e)
{
if (that) {
that->setRect(appRect());
}
QGraphicsView::resizeEvent(e);
}
void moveEvent(QMoveEvent *e)
{
if (that) {
that->setRect(appRect());
scene->update();
}
QGraphicsView::moveEvent(e);
}
void ImageWidget::paintEvent(QPaintEvent *)
{
QRectF desiredRect[4];
desiredRect[0] = QRectF( QPointF(desiredSize.width(), desiredSize.height()),
QPointF(2.0*desiredSize.width(), 2.0*desiredSize.height()));
desiredRect[1] = QRectF( QPointF(0.0, desiredSize.height()),
QPointF(desiredSize.width(), 2.0*desiredSize.height()));
desiredRect[2] = QRectF( QPointF(0.0, 0.0),
QPointF(desiredSize.width(), desiredSize.height()));
desiredRect[3] = QRectF( QPointF(desiredSize.width(), 0.0),
QPointF(2.0*desiredSize.width(), desiredSize.height()));
QPainter painter;
QPen pen(Qt::red, 10, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin);
QRectF defaultRect(0.0, 0.0, imgSize.width(), imgSize.height());
QRectF appRect(0.0, 0.0, desiredSize.width(), desiredSize.height());
for( int i = 0; i < 4; ++i)
{
/* load the image */
image.load(fileName[i]);
painter.begin(&image);
painter.drawPixmap(imagePos(image), QPixmap::fromImage(image));
painter.end();
/* get the area ready to draw in */
painter.begin(this);
painter.setCompositionMode(QPainter::CompositionMode_Source);
painter.drawImage(desiredRect[i], image, defaultRect);
painter.end();
}
for (list<QLine>::iterator it = lines.begin(); it != lines.end(); it++)
{
painter.begin(this);
painter.setPen(pen);
painter.drawLine(*it);
painter.end();
}
}