void KCompletionBox::setVisible( bool visible )
{
if (visible) {
d->upwardBox = false;
if ( d->m_parent ) {
sizeAndPosition();
qApp->installEventFilter( this );
}
// ### we shouldn't need to call this, but without this, the scrollbars
// are pretty b0rked.
//triggerUpdate( true );
// Workaround for I'm not sure whose bug - if this KCompletionBox' parent
// is in a layout, that layout will detect inserting new child (posted
// ChildInserted event), and will trigger relayout (post LayoutHint event).
// QWidget::show() sends also posted ChildInserted events for the parent,
// and later all LayoutHint events, which causes layout updating.
// The problem is, KCompletionBox::eventFilter() detects resizing
// of the parent, and calls hide() - and this hide() happen in the middle
// of show(), causing inconsistent state. I'll try to submit a Qt patch too.
qApp->sendPostedEvents();
} else {
if ( d->m_parent )
qApp->removeEventFilter( this );
d->cancelText.clear();
}
KListWidget::setVisible(visible);
}
void KCompletionBox::setItems( const QStringList& items )
{
bool block = signalsBlocked();
blockSignals( true );
int rowIndex = 0;
if (!count()) {
addItems(items);
} else {
// Keep track of whether we need to change anything,
// so we can avoid a repaint for identical updates,
// to reduce flicker
bool dirty = false;
QStringList::ConstIterator it = items.constBegin();
const QStringList::ConstIterator itEnd = items.constEnd();
for ( ; it != itEnd; ++it) {
if ( rowIndex < count() ) {
const bool changed = ((KCompletionBoxItem*)item(rowIndex))->reuse( *it );
dirty = dirty || changed;
} else {
dirty = true;
// Inserting an item is a way of making this dirty
addItem(*it);
}
rowIndex++;
}
// If there is an unused item, mark as dirty -> less items now
if (rowIndex < count()) {
dirty = true;
}
// remove unused items with an index >= rowIndex
for ( ; rowIndex < count() ; ) {
QListWidgetItem* item = takeItem(rowIndex);
Q_ASSERT(item);
delete item;
}
//TODO KDE4 : Port me
//if (dirty)
// triggerUpdate( false );
}
if (isVisible() && size().height() != sizeHint().height())
sizeAndPosition();
blockSignals(block);
}
void KonqComboCompletionBox::setItems( const QStringList& items )
{
bool block = signalsBlocked();
blockSignals( true );
int rowIndex = 0;
if ( count() == 0 )
insertStringList( items );
else {
//Keep track of whether we need to change anything,
//so we can avoid a repaint for identical updates,
//to reduce flicker
bool dirty = false;
QStringList::ConstIterator it = items.constBegin();
const QStringList::ConstIterator itEnd = items.constEnd();
for ( ; it != itEnd; ++it) {
if ( rowIndex < count() ) {
const bool changed = (static_cast<KonqListWidgetItem*>(item(rowIndex)))->reuse( *it );
dirty = dirty || changed;
}
else {
dirty = true;
//Inserting an item is a way of making this dirty
addItem( new KonqListWidgetItem( *it ) );
}
rowIndex++;
}
//If there is an unused item, mark as dirty -> less items now
if ( rowIndex < count() )
dirty = true;
while ( rowIndex < count() ) {
delete item(rowIndex);
}
//TODO KDE 4 - Port this
//if ( dirty )
// triggerUpdate( false );
}
if ( isVisible() && size().height() != sizeHint().height() )
sizeAndPosition();
blockSignals( block );
}
void KCompletionBox::popup()
{
if ( count() == 0 )
hide();
else {
bool block = signalsBlocked();
blockSignals( true );
setCurrentRow( -1 );
blockSignals( block );
clearSelection();
if ( !isVisible() )
show();
else if ( size().height() != sizeHint().height() )
sizeAndPosition();
}
}
