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Make the placement algorithm slightly more intelligent

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svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=751696
This commit is contained in:
Jason Stubbs 2007-12-22 16:42:09 +00:00
parent d4e9929555
commit 03ae8a076b
1 changed files with 21 additions and 22 deletions
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43
containment.cpp
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@ -437,34 +437,33 @@ Applet* Containment::addApplet(const QString& name, const QVariantList& args, ui
QRectF Containment::geometryForApplet(Applet *applet) const
{
// first try the top left of the containment
QRectF placement = QRectF(geometry().topLeft(), applet->sizeHint());
if (regionIsEmpty(placement, applet)) {
return placement;
}
// The value part of these maps isn't used. Only sorted keys are needed.
QMap<qreal, bool> xPositions;
QMap<qreal, bool> yPositions;
QList<Applet *> otherApplets = d->applets;
otherApplets.removeAll(applet);
// Add the top-left corner offset by the applet's border
QPointF offset = applet->boundingRect().topLeft();
xPositions[-offset.x()] = true;
yPositions[-offset.y()] = true;
// Then below existing applets
foreach (Applet *otherApplet, otherApplets) {
placement.moveTo(otherApplet->pos() + QPointF(0, otherApplet->size().height()));
if (!geometry().contains(placement)) {
continue;
QRectF placement(QPointF(0, 0), applet->sizeHint());
foreach (Applet *existingApplet, d->applets) {
QPointF bottomRight = existingApplet->geometry().bottomRight();
if (bottomRight.x() + placement.width() < geometry().width()) {
xPositions[bottomRight.x() + 1] = true;
}
if (regionIsEmpty(placement, applet)) {
return placement;
if (bottomRight.y() + placement.height() < geometry().height()) {
yPositions[bottomRight.y() + 1] = true;
}
}
// Then to the right
foreach (Applet *otherApplet, otherApplets) {
placement.moveTo(otherApplet->pos() + QPointF(otherApplet->size().width(), 0));
if (!geometry().contains(placement)) {
continue;
}
if (regionIsEmpty(placement, applet)) {
return placement;
// Try to fit it in an empty space
foreach (qreal x, xPositions.keys()) {
foreach (qreal y, yPositions.keys()) {
placement.moveTo(x, y);
if (regionIsEmpty(placement, applet)) {
return placement;
}
}
}