/**
* @brief contextMenuEvent handle context menu events.
* @param event context menu event.
*/
void VToolDetail::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
{
QMenu menu;
QAction *actionOption = menu.addAction(tr("Options"));
QAction *actionRemove = menu.addAction(tr("Delete"));
if (_referens > 1)
{
actionRemove->setEnabled(false);
}
else
{
actionRemove->setEnabled(true);
}
QAction *selectedAction = menu.exec(event->screenPos());
if (selectedAction == actionOption)
{
QGraphicsScene *scene = this->scene();
QList<QGraphicsView *> list = scene->views();
dialog = new DialogDetail(getData(), list.first());
connect(qobject_cast< VMainGraphicsScene * >(this->scene()), &VMainGraphicsScene::ChoosedObject,
dialog, &DialogTool::ChoosedObject);
connect(dialog, &DialogTool::DialogClosed, this, &VToolDetail::FullUpdateFromGuiOk);
setDialog();
dialog->show();
}
if (selectedAction == actionRemove)
{
DeleteTool();
}
}
void drawHist(QGraphicsPixmapItem *pixmapItem, std::vector<int> &hist, int maxLevel)
{
QGraphicsScene *scene = pixmapItem->scene();
QGraphicsView *view = scene->views()[0];
int width = view->contentsRect().width();
int height = view->contentsRect().height();
QColor black(0, 0, 0);
QColor white(255, 255, 255);
QColor red(255, 0, 0);
QImage image(width, height, QImage::Format_ARGB32);
image.fill(white);
QPainter p(&image);
double shift = (double) image.width() / hist.size();
double step = (double) image.height() / maxLevel;
for (unsigned int i = 0; i < hist.size(); ++i)
{
if (i == 0 || i == hist.size() - 1)
{
p.setPen(red);
p.setBrush(QBrush(red));
}
else if (i == 1)
{
p.setPen(black);
p.setBrush(QBrush(black));
}
if (hist[i] == 0)
continue;
int curHeight = hist[i] * step;
p.drawRect(qFloor(i * shift), qFloor(image.height() - curHeight), qFloor(shift), qFloor(curHeight));
}
pixmapItem->setPixmap(QPixmap::fromImage(image));
scene->setSceneRect(QRectF(image.rect()));
}
/*!
*/
void GridItem::moveBall(BallItem *ball, const QVector<GridPos> &path)
{
if (!ball) {
qDebug() << "GridItem::moveBall(...): pointer to the ball item is NULL";
return;
}
QVector<GridPos> tmpPath(path);
// skip the first square
GridPos firstPos = tmpPath.front();
freePos(firstPos);
//
// the source square becomes available
BallItemsProvider::instance()->fromUsedToAvailable(firstPos);
//
QGraphicsScene *theScene = scene();
Q_ASSERT(theScene);
Q_ASSERT(theScene->views().isEmpty() == false);
theScene->views()[0]->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
foreach(GridPos pos, tmpPath) {
if (pos != tmpPath.back()) {
// do not store the ball item on the positions of the intermediate squares (the 3rd argument
// is set to false).
showBall(ball, pos, false);
pause(100);
} else {
// is there any hint ball onto the target square ?
BallItem *hintBall = ballAt(pos);
if (hintBall) {
hideBall(hintBall);
delete hintBall;
BallItemsProvider::instance()->removeHint(hintBall);
}
// stores the ball item on the position of the target square.
showBall(ball, pos, true);
}
// also wipes the path tracks square by square
m_pathTracker.removeFrontLine();
update();
}
}
QGraphicsView * KWidget::view() const
{
QGraphicsScene *gs = scene();
if(gs == NULL)
return NULL;
const QList<QGraphicsView*>& lstgv = gs->views();
if(lstgv.isEmpty())
return NULL;
return lstgv[0];
}
void ShaderEffectItem::checkViewportUpdateMode()
{
if (!m_checkedViewportUpdateMode) {
QGraphicsScene *s = scene();
if (s){
QList<QGraphicsView*> views = s->views();
for (int i = 0; i < views.count(); i++) {
if (views[i]->viewportUpdateMode() != QGraphicsView::FullViewportUpdate) {
qWarning() << "ShaderEffectItem::checkViewportUpdateMode - consider setting QGraphicsView::FullViewportUpdate mode with OpenGL!";
}
}
}
m_checkedViewportUpdateMode = true;
}
}
QWidget *QuickTestEvent::eventWidget()
{
QDeclarativeItem *item = qobject_cast<QDeclarativeItem *>(parent());
if (!item)
return 0;
QGraphicsScene *s = item->scene();
while (!s && item) {
item = qobject_cast<QDeclarativeItem *>(item->parent());
s = item->scene();
}
if (!s)
return 0;
QList<QGraphicsView *> views = s->views();
if (views.isEmpty())
return 0;
return views.at(0);
}
