void SELECTION_TOOL::toggleSelection( BOARD_ITEM* aItem )
{
if( aItem->IsSelected() )
{
deselect( aItem );
// Inform other potentially interested tools
TOOL_EVENT deselectEvent( DeselectedEvent );
m_toolMgr->ProcessEvent( deselectEvent );
}
else
{
if( !m_additive )
clearSelection();
// Prevent selection of invisible or inactive items
if( selectable( aItem ) )
{
select( aItem );
// Inform other potentially interested tools
TOOL_EVENT selectEvent( SelectedEvent );
m_toolMgr->ProcessEvent( selectEvent );
}
}
}
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;
}
bool SELECTION_TOOL::selectCursor( const VECTOR2I& aWhere, bool aOnDrag )
{
BOARD_ITEM* item;
GENERAL_COLLECTORS_GUIDE guide = m_frame->GetCollectorsGuide();
GENERAL_COLLECTOR collector;
if( m_editModules )
collector.Collect( getModel<BOARD>(), GENERAL_COLLECTOR::ModuleItems,
wxPoint( aWhere.x, aWhere.y ), guide );
else
collector.Collect( getModel<BOARD>(), GENERAL_COLLECTOR::AllBoardItems,
wxPoint( aWhere.x, aWhere.y ), guide );
bool anyCollected = collector.GetCount() != 0;
// Remove unselectable items
for( int i = collector.GetCount() - 1; i >= 0; --i )
{
if( !selectable( collector[i] ) || ( aOnDrag && collector[i]->IsLocked() ) )
collector.Remove( i );
}
switch( collector.GetCount() )
{
case 0:
if( !m_additive && anyCollected )
clearSelection();
return false;
case 1:
toggleSelection( collector[0] );
return true;
default:
// Apply some ugly heuristics to avoid disambiguation menus whenever possible
guessSelectionCandidates( collector );
// Let's see if there is still disambiguation in selection..
if( collector.GetCount() == 1 )
{
toggleSelection( collector[0] );
return true;
}
else if( collector.GetCount() > 1 )
{
if( aOnDrag )
Wait( TOOL_EVENT( TC_ANY, TA_MOUSE_UP, BUT_LEFT ) );
item = disambiguationMenu( &collector );
if( item )
{
toggleSelection( item );
return true;
}
}
break;
}
return false;
}
bool SELECTION_TOOL::selectSingle( const VECTOR2I& aWhere, bool aAllowDisambiguation )
{
BOARD_ITEM* item;
GENERAL_COLLECTORS_GUIDE guide = m_frame->GetCollectorsGuide();
GENERAL_COLLECTOR collector;
// Preferred types (they have the priority when if they are covered by a bigger item)
const KICAD_T types[] = { PCB_TRACE_T, PCB_VIA_T, PCB_LINE_T, PCB_MODULE_TEXT_T, EOT };
if( m_editModules )
collector.Collect( getModel<BOARD>(), GENERAL_COLLECTOR::ModuleItems,
wxPoint( aWhere.x, aWhere.y ), guide );
else
collector.Collect( getModel<BOARD>(), GENERAL_COLLECTOR::AllBoardItems,
wxPoint( aWhere.x, aWhere.y ), guide );
switch( collector.GetCount() )
{
case 0:
if( !m_additive )
clearSelection();
return false;
case 1:
toggleSelection( collector[0] );
return true;
default:
// Remove unselectable items
for( int i = collector.GetCount() - 1; i >= 0; --i )
{
if( !selectable( collector[i] ) )
collector.Remove( i );
}
// Check if among the selection candidates there is only one instance of preferred type
item = prefer( collector, types );
if( item )
{
toggleSelection( item );
return true;
}
// Let's see if there is still disambiguation in selection..
if( collector.GetCount() == 1 )
{
toggleSelection( collector[0] );
return true;
}
else if( aAllowDisambiguation && collector.GetCount() > 1 )
{
item = disambiguationMenu( &collector );
if( item )
{
toggleSelection( item );
return true;
}
}
break;
}
return false;
}
