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Make the scope and text stay in the screen

This commit is contained in:
ArsenArsen 2017-05-16 16:22:32 +02:00
parent df782571f9
commit 0fdfc1eb26
1 changed files with 24 additions and 3 deletions
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27
colorpicker/colorpickerscene.cpp
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@ -32,12 +32,33 @@ ColorPickerScene::ColorPickerScene(QPixmap *pixmap, QWidget *parentWidget)
}
void ColorPickerScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event) {
ellipse->setRect(QRectF(event->scenePos(), QSize(20, 20)));
color = pItem->pixmap().toImage().pixelColor(event->scenePos().toPoint());
text->setPos(QCursor::pos() + QPoint(25, 0));
text->setPlainText(color.name());
textBackground->setPos(text->pos());
ellipse->setBrush(color);
qreal bottom = rect().bottom(); // max y
qreal right = rect().right(); // max x
qreal width = text->boundingRect().width();
qreal height = text->boundingRect().height();
QPointF origPoint = event->scenePos() + QPoint(25, 0);
QPointF scopePoint = event->scenePos();
QPointF resPoint = origPoint;
if (origPoint.x() + width > right) {
scopePoint -= QPoint(20, 0);
resPoint -= QPoint(50 + width, 0);
}
if (origPoint.y() + height > bottom) {
scopePoint -= QPoint(0, 20);
resPoint -= QPoint(0, height);
}
ellipse->setRect(QRectF(scopePoint, QSize(20, 20)));
text->setPos(resPoint);
textBackground->setPos(text->pos());
// How does this work? I have no clue....
// I mean.. It kinda makes sense when you look through it carefully
// But it's still a mess.
}
void ColorPickerScene::keyPressEvent(QKeyEvent *event) {