bool SELECTION_TOOL::selectionContains( const VECTOR2I& aPoint ) const
{
const unsigned GRIP_MARGIN = 20;
VECTOR2D margin = getView()->ToWorld( VECTOR2D( GRIP_MARGIN, GRIP_MARGIN ), false );
// Check if the point is located within any of the currently selected items bounding boxes
for( unsigned int i = 0; i < m_selection.items.GetCount(); ++i )
{
BOARD_ITEM* item = m_selection.Item<BOARD_ITEM>( i );
BOX2I itemBox = item->ViewBBox();
itemBox.Inflate( margin.x, margin.y ); // Give some margin for gripping an item
if( itemBox.Contains( aPoint ) )
return true;
}
return false;
}
bool SELECTION_TOOL::selectMultiple()
{
bool cancelled = false; // Was the tool cancelled while it was running?
m_multiple = true; // Multiple selection mode is active
KIGFX::VIEW* view = getView();
getViewControls()->SetAutoPan( true );
SELECTION_AREA area;
view->Add( &area );
while( OPT_TOOL_EVENT evt = Wait() )
{
if( evt->IsCancel() )
{
cancelled = true;
break;
}
if( evt->IsDrag( BUT_LEFT ) )
{
if( !m_additive )
clearSelection();
// Start drawing a selection box
area.SetOrigin( evt->DragOrigin() );
area.SetEnd( evt->Position() );
area.ViewSetVisible( true );
area.ViewUpdate( KIGFX::VIEW_ITEM::GEOMETRY );
}
if( evt->IsMouseUp( BUT_LEFT ) )
{
// End drawing the selection box
area.ViewSetVisible( false );
// Mark items within the selection box as selected
std::vector<KIGFX::VIEW::LAYER_ITEM_PAIR> selectedItems;
BOX2I selectionBox = area.ViewBBox();
view->Query( selectionBox, selectedItems ); // Get the list of selected items
std::vector<KIGFX::VIEW::LAYER_ITEM_PAIR>::iterator it, it_end;
for( it = selectedItems.begin(), it_end = selectedItems.end(); it != it_end; ++it )
{
BOARD_ITEM* item = static_cast<BOARD_ITEM*>( it->first );
// Add only those items that are visible and fully within the selection box
if( !item->IsSelected() && selectable( item ) &&
selectionBox.Contains( item->ViewBBox() ) )
{
select( item );
}
}
// Do not display information about selected item,as there is more than one
m_frame->SetCurItem( NULL );
if( !m_selection.Empty() )
{
// Inform other potentially interested tools
m_toolMgr->ProcessEvent( SelectedEvent );
}
break; // Stop waiting for events
}
}
// Stop drawing the selection box
area.ViewSetVisible( false );
view->Remove( &area );
m_multiple = false; // Multiple selection mode is inactive
getViewControls()->SetAutoPan( false );
return cancelled;
}
