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function to adjust a rect to availableScreenRect

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Given a geometry, it adjusts it moving it completely inside of the boundaries
of availableScreenRegion, returning the topLeft point of the adjusted
rectangle

reviewed-by: David Edmundson <david@davidedmundson.co.uk>

Change-Id: Ib58cbf521d5def1cd5bb34fe90366d4b628f8a89
CCBUG:345401
CCBUG:345002
This commit is contained in:
Marco Martin 2015-03-26 16:48:16 +01:00
parent 4985a4fe65
commit 22796e978d
2 changed files with 108 additions and 0 deletions
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101
src/scriptengines/qml/plasmoid/containmentinterface.cpp
View File

@ -311,6 +311,107 @@ QPointF ContainmentInterface::mapToApplet(AppletInterface *applet, int x, int y)
return pos - applet->mapToScene(QPointF(0, 0));
}
QPointF ContainmentInterface::adjustToAvailableScreenRegion(int x, int y, int w, int h) const
{
QRegion reg = QRect(0, 0, width(), height());
int screenId = screen();
if (screenId > -1 && m_containment->corona()) {
reg = m_containment->corona()->availableScreenRegion(screenId);
}
const QRect rect(qBound(reg.boundingRect().left(), x, reg.boundingRect().right() - w),
qBound(reg.boundingRect().top(), y, reg.boundingRect().bottom() - h), w, h);
const QRectF ar = availableScreenRect();
QRect tempRect(rect);
// in the case we are in the topleft quadrant
// * see if the passed rect is completely in the region, if yes, return
// * otherwise, try to move it horizontally to the screenrect x
// * if now fits, return
// * if fail, move vertically
// * as last resort, move horizontally and vertically
// top left corner
if (rect.center().x() <= ar.center().x() && rect.center().y() <= ar.center().y()) {
//QRegion::contains doesn't do what it would suggest, so do reg.intersected(rect) != rect instead
if (reg.intersected(rect) != rect) {
tempRect = QRect(qMax(rect.left(), (int)ar.left()), rect.top(), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(rect.left(), qMax(rect.top(), (int)ar.top()), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(qMax(rect.left(), (int)ar.left()), qMax(rect.top(), (int)ar.top()), w, h);
return tempRect.topLeft();
} else {
return rect.topLeft();
}
//bottom left corner
} else if (rect.center().x() <= ar.center().x() && rect.center().y() > ar.center().y()) {
if (reg.intersected(rect) != rect) {
tempRect = QRect(qMax(rect.left(), (int)ar.left()), rect.top(), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(rect.left(), qMin(rect.top(), (int)(ar.bottom() - h)), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(qMax(rect.left(), (int)ar.left()), qMin(rect.top(), (int)(ar.bottom() - h)), w, h);
return tempRect.topLeft();
} else {
return rect.topLeft();
}
//top right corner
} else if (rect.center().x() > ar.center().x() && rect.center().y() <= ar.center().y()) {
if (reg.intersected(rect) != rect) {
tempRect = QRect(qMin(rect.left(), (int)(ar.right() - w)), rect.top(), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(rect.left(), qMax(rect.top(), (int)ar.top()), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(qMin(rect.left(), (int)(ar.right() - w)), qMax(rect.top(), (int)ar.top()), w, h);
return tempRect.topLeft();
} else {
return rect.topLeft();
}
//bottom right corner
} else if (rect.center().x() > ar.center().x() && rect.center().y() > ar.center().y()) {
if (reg.intersected(rect) != rect) {
tempRect = QRect(qMin(rect.left(), (int)(ar.right() - w)), rect.top(), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(rect.left(), qMin(rect.top(), (int)(ar.bottom() - h)), w, h);
if (reg.intersected(tempRect) == tempRect) {
return tempRect.topLeft();
}
tempRect = QRect(qMin(rect.left(), (int)(ar.right() - w)), qMin(rect.top(), (int)(ar.bottom() - h)), w, h);
return tempRect.topLeft();
} else {
return rect.topLeft();
}
}
return rect.topLeft();
}
void ContainmentInterface::processMimeData(QObject *mimeDataProxy, int x, int y)
{
QMimeData* mime = qobject_cast<QMimeData*>(mimeDataProxy);

7
src/scriptengines/qml/plasmoid/containmentinterface.h
View File

@ -149,6 +149,13 @@ public:
*/
Q_INVOKABLE QPointF mapToApplet(AppletInterface *applet, int x, int y);
/**
* Given a geometry, it adjusts it moving it completely inside of the boundaries
* of availableScreenRegion
* @return the toLeft point of the rectangle
*/
Q_INVOKABLE QPointF adjustToAvailableScreenRegion(int x, int y, int w, int h) const;
static ContainmentInterface *qmlAttachedProperties(QObject *object)
{
return qobject_cast<ContainmentInterface *>(AppletQuickItem::qmlAttachedProperties(object));