Dialog: Dot not update layout width/height unlesss completed

The functions are often called a number of times before the
component is actually completed. There is no point of this.

Also added a function updateLayoutParameters which update all 4
of these in a more efficient manner. There is a certain amount
of code duplication between those 4 functions and this one, but
that can be fixed in another patch.
This commit is contained in:
Vishesh Handa 2014-08-28 16:15:26 +02:00
parent 4f622a5158
commit eb6ea04be7

View File

@ -91,6 +91,14 @@ public:
void updateMaximumWidth();
void updateMaximumHeight();
/**
* This function is an optimized version of updateMaximumHeight,
* updateMaximumWidth,updateMinimumWidth and updateMinimumHeight.
* It should be called when you need to call all 4 of these functions
* AND you have called syncToMainItemSize before.
*/
void updateLayoutParameters();
/**
* This function checks the current position of the dialog and repositions
* it so that no part of it is not on the screen
@ -298,6 +306,9 @@ void DialogPrivate::updateMinimumWidth()
void DialogPrivate::updateMinimumHeight()
{
if (!componentComplete) {
return;
}
Q_ASSERT(mainItem);
Q_ASSERT(mainItemLayout);
@ -310,7 +321,7 @@ void DialogPrivate::updateMinimumHeight()
int oldHeight = mainItem->height();
q->setMinimumHeight(minimumHeight + margin->left() + margin->right());
q->setMinimumHeight(minimumHeight + margin->top() + margin->bottom());
q->setHeight(qMax(q->height(), q->minimumHeight()));
mainItem->setHeight(q->height() - margin->top() - margin->bottom());
@ -328,6 +339,9 @@ void DialogPrivate::updateMinimumHeight()
void DialogPrivate::updateMaximumWidth()
{
if (!componentComplete) {
return;
}
Q_ASSERT(mainItem);
Q_ASSERT(mainItemLayout);
@ -354,6 +368,9 @@ void DialogPrivate::updateMaximumWidth()
void DialogPrivate::updateMaximumHeight()
{
if (!componentComplete) {
return;
}
Q_ASSERT(mainItem);
Q_ASSERT(mainItemLayout);
@ -365,7 +382,7 @@ void DialogPrivate::updateMaximumHeight()
maximumHeight = maximumHeight ? maximumHeight : DIALOGSIZE_MAX;
auto margin = frameSvgItem->margins();
q->setMaximumHeight(maximumHeight + margin->left() + margin->right());
q->setMaximumHeight(maximumHeight + margin->top() + margin->bottom());
q->setHeight(qBound(q->minimumHeight(), q->height(), q->maximumHeight()));
mainItem->setHeight(q->height() - margin->top() - margin->bottom());
@ -378,8 +395,54 @@ void DialogPrivate::updateMaximumHeight()
QObject::connect(mainItem, SIGNAL(heightChanged()), q, SLOT(slotMainItemSizeChanged()));
}
void DialogPrivate::updateLayoutParameters()
{
if (!componentComplete) {
return;
}
Q_ASSERT(mainItem);
Q_ASSERT(mainItemLayout);
mainItem->disconnect(q);
int minimumHeight = mainItemLayout->property("minimumHeight").toInt();
int maximumHeight = mainItemLayout->property("maximumHeight").toInt();
maximumHeight = maximumHeight ? maximumHeight : DIALOGSIZE_MAX;
int minimumWidth = mainItemLayout->property("minimumWidth").toInt();
int maximumWidth = mainItemLayout->property("maximumWidth").toInt();
maximumWidth = maximumWidth ? maximumWidth : DIALOGSIZE_MAX;
auto margin = frameSvgItem->margins();
q->setMinimumHeight(minimumHeight + margin->top() + margin->bottom());
q->setMaximumHeight(maximumHeight + margin->top() + margin->bottom());
q->setHeight(qBound(q->minimumHeight(), q->height(), q->maximumHeight()));
q->setMinimumWidth(minimumWidth + margin->left() + margin->right());
q->setMaximumWidth(maximumWidth + margin->left() + margin->right());
q->setWidth(qBound(q->minimumWidth(), q->width(), q->maximumWidth()));
mainItem->setX(margin->left());
mainItem->setY(margin->top());
mainItem->setWidth(q->width() - margin->left() + margin->right());
mainItem->setHeight(q->height() - margin->top() - margin->bottom());
frameSvgItem->setWidth(q->width());
frameSvgItem->setHeight(q->height());
repositionIfOffScreen();
updateTheme();
QObject::connect(mainItem, SIGNAL(widthChanged()), q, SLOT(slotMainItemSizeChanged()));
QObject::connect(mainItem, SIGNAL(heightChanged()), q, SLOT(slotMainItemSizeChanged()));
}
void DialogPrivate::repositionIfOffScreen()
{
if (!componentComplete) {
return;
}
const QRect avail = q->screen()->availableGeometry();
int x = q->x();
@ -604,10 +667,7 @@ void Dialog::setMainItem(QQuickItem *mainItem)
connect(layout, SIGNAL(maximumWidthChanged()), this, SLOT(updateMaximumWidth()));
connect(layout, SIGNAL(maximumHeightChanged()), this, SLOT(updateMaximumHeight()));
d->updateMinimumWidth();
d->updateMinimumHeight();
d->updateMaximumWidth();
d->updateMaximumHeight();
d->updateLayoutParameters();
}
}
@ -921,6 +981,10 @@ void Dialog::componentComplete()
{
d->componentComplete = true;
d->syncToMainItemSize();
if (d->mainItemLayout) {
d->updateLayoutParameters();
}
}
bool Dialog::hideOnWindowDeactivate() const