void QgsLayoutView::invertSelection()
{
if ( !currentLayout() )
{
return;
}
QgsLayoutItem *focusedItem = nullptr;
//check all items in layout
const QList<QGraphicsItem *> itemList = currentLayout()->items();
for ( QGraphicsItem *graphicsItem : itemList )
{
QgsLayoutItem *item = dynamic_cast<QgsLayoutItem *>( graphicsItem );
QgsLayoutItemPage *paperItem = dynamic_cast<QgsLayoutItemPage *>( graphicsItem );
if ( item && !paperItem )
{
//flip selected state for items (and deselect any locked items)
if ( item->isSelected() || item->isLocked() )
{
item->setSelected( false );
}
else
{
item->setSelected( true );
if ( !focusedItem )
focusedItem = item;
}
}
}
if ( focusedItem )
emit itemFocused( focusedItem );
}
void QgsLayoutViewToolSelect::layoutPressEvent( QgsLayoutViewMouseEvent *event )
{
if ( mMouseHandles->shouldBlockEvent( event ) )
{
//swallow clicks while dragging/resizing items
return;
}
if ( mMouseHandles->isVisible() )
{
//selection handles are being shown, get mouse action for current cursor position
QgsLayoutMouseHandles::MouseAction mouseAction = mMouseHandles->mouseActionForScenePos( event->layoutPoint() );
if ( mouseAction != QgsLayoutMouseHandles::MoveItem
&& mouseAction != QgsLayoutMouseHandles::NoAction
&& mouseAction != QgsLayoutMouseHandles::SelectItem )
{
//mouse is over a resize handle, so propagate event onward
event->ignore();
return;
}
}
if ( event->button() != Qt::LeftButton )
{
event->ignore();
return;
}
QgsLayoutItem *selectedItem = nullptr;
QgsLayoutItem *previousSelectedItem = nullptr;
QList<QgsLayoutItem *> selectedItems = layout()->selectedLayoutItems();
if ( event->modifiers() & Qt::ControlModifier )
{
//CTRL modifier, so we are trying to select the next item below the current one
//first, find currently selected item
if ( !selectedItems.isEmpty() )
{
previousSelectedItem = selectedItems.at( 0 );
}
}
if ( previousSelectedItem )
{
//select highest item just below previously selected item at position of event
selectedItem = layout()->layoutItemAt( event->layoutPoint(), previousSelectedItem, true );
//if we didn't find a lower item we'll use the top-most as fall-back
//this duplicates mapinfo/illustrator/etc behavior where ctrl-clicks are "cyclic"
if ( !selectedItem )
{
selectedItem = layout()->layoutItemAt( event->layoutPoint(), true );
}
}
else
{
//select topmost item at position of event
selectedItem = layout()->layoutItemAt( event->layoutPoint(), true );
}
if ( !selectedItem )
{
//not clicking over an item, so start marquee selection
mIsSelecting = true;
mMousePressStartPos = event->pos();
mRubberBand->start( event->layoutPoint(), nullptr );
return;
}
if ( ( event->modifiers() & Qt::ShiftModifier ) && ( selectedItem->isSelected() ) )
{
//SHIFT-clicking a selected item deselects it
selectedItem->setSelected( false );
//Check if we have any remaining selected items, and if so, update the item panel
const QList<QgsLayoutItem *> selectedItems = layout()->selectedLayoutItems();
if ( !selectedItems.isEmpty() )
{
emit itemFocused( selectedItems.at( 0 ) );
}
else
{
emit itemFocused( nullptr );
}
}
else
{
if ( ( !selectedItem->isSelected() ) && //keep selection if an already selected item pressed
!( event->modifiers() & Qt::ShiftModifier ) ) //keep selection if shift key pressed
{
layout()->setSelectedItem( selectedItem ); // clears existing selection
}
else
{
selectedItem->setSelected( true );
}
event->ignore();
emit itemFocused( selectedItem );
}
}