position_relative_tool.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017-2022 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <functional>
#include <memory>
using namespace std::placeholders;
 
#include <kiplatform/ui.h>
#include <tools/position_relative_tool.h>
#include <tools/pcb_actions.h>
#include <tools/pcb_selection_tool.h>
#include <tools/pcb_picker_tool.h>
#include <dialogs/dialog_position_relative.h>
#include <status_popup.h>
#include <board_commit.h>
#include <confirm.h>
#include <collectors.h>
#include <pad.h>
#include <footprint.h>
#include <pcb_group.h>
 
 
POSITION_RELATIVE_TOOL::POSITION_RELATIVE_TOOL() :
 PCB_TOOL_BASE( "pcbnew.PositionRelative" ),
 m_dialog( nullptr ),
 m_selectionTool( nullptr ),
 m_anchor_item( nullptr )
{
}
 
 
void POSITION_RELATIVE_TOOL::Reset( RESET_REASON aReason )
{
 if( aReason != RUN )
 m_commit = std::make_unique<BOARD_COMMIT>( this );
}
 
 
bool POSITION_RELATIVE_TOOL::Init()
{
 // Find the selection tool, so they can cooperate
 m_selectionTool = m_toolMgr->GetTool<PCB_SELECTION_TOOL>();
 
 return m_selectionTool != nullptr;
}
 
 
int POSITION_RELATIVE_TOOL::PositionRelative( const TOOL_EVENT& aEvent )
{
 PCB_BASE_FRAME* editFrame = getEditFrame<PCB_BASE_FRAME>();
 
 const auto& selection = m_selectionTool->RequestSelection(
 []( const VECTOR2I& aPt, GENERAL_COLLECTOR& aCollector, PCB_SELECTION_TOOL* sTool )
 {
 sTool->FilterCollectorForHierarchy( aCollector, true );
 sTool->FilterCollectorForMarkers( aCollector );
 },
 !m_isFootprintEditor /* prompt user regarding locked items */ );
 
 if( selection.Empty() )
 return 0;
 
 m_selection = selection;
 
 // We prefer footprints, then pads, then anything else here.
 EDA_ITEM* preferredItem = m_selection.GetTopLeftItem( true );
 
 if( !preferredItem && m_selection.HasType( PCB_PAD_T ) )
 {
 PCB_SELECTION padsOnly = m_selection;
 std::deque<EDA_ITEM*>& items = padsOnly.Items();
 items.erase( std::remove_if( items.begin(), items.end(),
 []( const EDA_ITEM* aItem )
 {
 return aItem->Type() != PCB_PAD_T;
 } ), items.end() );
 
 preferredItem = padsOnly.GetTopLeftItem();
 }
 
 if( preferredItem )
 m_selectionAnchor = preferredItem->GetPosition();
 else
 m_selectionAnchor = m_selection.GetTopLeftItem()->GetPosition();
 
 // The dialog is not modal and not deleted between calls.
 // It means some options can have changed since the last call.
 // Therefore we need to rebuild it in case UI units have changed since the last call.
 if( m_dialog && m_dialog->GetUserUnits() != editFrame->GetUserUnits() )
 {
 m_dialog->Destroy();
 m_dialog = nullptr;
 }
 
 if( !m_dialog )
 m_dialog = new DIALOG_POSITION_RELATIVE( editFrame );
 
 m_dialog->Show( true );
 
 return 0;
}
 
 
int POSITION_RELATIVE_TOOL::RelativeItemSelectionMove( const VECTOR2I& aPosAnchor,
 const VECTOR2I& aTranslation )
{
 VECTOR2I aggregateTranslation = aPosAnchor + aTranslation - GetSelectionAnchorPosition();
 
 for( EDA_ITEM* item : m_selection )
 {
 if( BOARD_ITEM* boardItem = dynamic_cast<BOARD_ITEM*>( item ) )
 {
 // Don't move a pad by itself unless editing the footprint
 if( boardItem->Type() == PCB_PAD_T
 && !frame()->GetPcbNewSettings()->m_AllowFreePads
 && frame()->IsType( FRAME_PCB_EDITOR ) )
 {
 boardItem = boardItem->GetParent();
 }
 
 m_commit->Modify( boardItem );
 
 // If moving a group, record position of all the descendants for undo
 if( boardItem->Type() == PCB_GROUP_T )
 {
 PCB_GROUP* group = static_cast<PCB_GROUP*>( boardItem );
 group->RunOnDescendants( [&]( BOARD_ITEM* descendant )
 {
 m_commit->Modify( descendant );
 });
 }
 
 boardItem->Move( aggregateTranslation );
 }
 }
 
 m_commit->Push( _( "Position Relative" ) );
 
 if( m_selection.IsHover() )
 m_toolMgr->RunAction( PCB_ACTIONS::selectionClear );
 
 m_toolMgr->ProcessEvent( EVENTS::SelectedItemsModified );
 
 canvas()->Refresh();
 return 0;
}
 
 
int POSITION_RELATIVE_TOOL::SelectPositionRelativeItem( const TOOL_EVENT& aEvent )
{
 PCB_PICKER_TOOL* picker = m_toolMgr->GetTool<PCB_PICKER_TOOL>();
 STATUS_TEXT_POPUP statusPopup( frame() );
 bool done = false;
 
 Activate();
 
 statusPopup.SetText( _( "Click on reference item..." ) );
 
 picker->SetClickHandler(
 [&]( const VECTOR2D& aPoint ) -> bool
 {
 m_toolMgr->RunAction( PCB_ACTIONS::selectionClear );
 const PCB_SELECTION& sel = m_selectionTool->RequestSelection(
 []( const VECTOR2I& aPt, GENERAL_COLLECTOR& aCollector,
 PCB_SELECTION_TOOL* sTool )
 {
 } );
 
 if( sel.Empty() )
 return true; // still looking for an item
 
 m_anchor_item = sel.Front();
 statusPopup.Hide();
 
 if( m_dialog )
 m_dialog->UpdateAnchor( sel.Front() );
 
 return false; // got our item; don't need any more
 } );
 
 picker->SetMotionHandler(
 [&] ( const VECTOR2D& aPos )
 {
 statusPopup.Move( KIPLATFORM::UI::GetMousePosition() + wxPoint( 20, -50 ) );
 } );
 
 picker->SetCancelHandler(
 [&]()
 {
 statusPopup.Hide();
 
 if( m_dialog )
 m_dialog->UpdateAnchor( m_anchor_item );
 } );
 
 picker->SetFinalizeHandler(
 [&]( const int& aFinalState )
 {
 done = true;
 } );
 
 statusPopup.Move( KIPLATFORM::UI::GetMousePosition() + wxPoint( 20, -50 ) );
 statusPopup.Popup();
 canvas()->SetStatusPopup( statusPopup.GetPanel() );
 
 m_toolMgr->RunAction( ACTIONS::pickerTool, &aEvent );
 
 while( !done )
 {
 // Pass events unless we receive a null event, then we must shut down
 if( TOOL_EVENT* evt = Wait() )
 evt->SetPassEvent();
 else
 break;
 }
 
 canvas()->SetStatusPopup( nullptr );
 
 return 0;
}
 
 
void POSITION_RELATIVE_TOOL::setTransitions()
{
 Go( &POSITION_RELATIVE_TOOL::PositionRelative, PCB_ACTIONS::positionRelative.MakeEvent() );
 Go( &POSITION_RELATIVE_TOOL::SelectPositionRelativeItem,
 PCB_ACTIONS::selectpositionRelativeItem.MakeEvent() );
}