kicad/pagelayout_editor/tools/pl_point_editor.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019 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>
using namespace std::placeholders;
#include "pl_point_editor.h"
#include <tool/tool_manager.h>
#include <tool/actions.h>
#include <tools/pl_actions.h>
#include <tools/pl_selection_tool.h>
#include <view/view_controls.h>
#include <gal/graphics_abstraction_layer.h>
#include <geometry/seg.h>
#include <confirm.h>
#include <bitmaps.h>
#include <status_popup.h>
#include <pl_editor_frame.h>
#include <ws_draw_item.h>
#include <widgets/progress_reporter.h>
#include <pl_editor_id.h>
// Few constants to avoid using bare numbers for point indices
enum RECTANGLE_POINTS
{
RECT_TOPLEFT, RECT_TOPRIGHT, RECT_BOTLEFT, RECT_BOTRIGHT
};
enum LINE_POINTS
{
LINE_START, LINE_END
};
class EDIT_POINTS_FACTORY
{
public:
static std::shared_ptr<EDIT_POINTS> Make( EDA_ITEM* aItem )
{
std::shared_ptr<EDIT_POINTS> points = std::make_shared<EDIT_POINTS>( aItem );
if( !aItem )
return points;
// Generate list of edit points based on the item type
switch( aItem->Type() )
{
case WSG_LINE_T:
{
WS_DRAW_ITEM_LINE* line = (WS_DRAW_ITEM_LINE*) aItem;
points->AddPoint( line->GetStart() );
points->AddPoint( line->GetEnd() );
break;
}
case WSG_RECT_T:
{
WS_DRAW_ITEM_RECT* rect = (WS_DRAW_ITEM_RECT*) aItem;
wxPoint topLeft = rect->GetStart();
wxPoint botRight = rect->GetEnd();
points->AddPoint( (VECTOR2I) topLeft );
points->AddPoint( VECTOR2I( botRight.x, topLeft.y ) );
points->AddPoint( VECTOR2I( topLeft.x, botRight.y ) );
points->AddPoint( (VECTOR2I) botRight );
break;
}
default:
points.reset();
break;
}
return points;
}
private:
EDIT_POINTS_FACTORY() {};
};
PL_POINT_EDITOR::PL_POINT_EDITOR() :
TOOL_INTERACTIVE( "plEditor.PointEditor" ),
m_editedPoint( nullptr )
{
}
void PL_POINT_EDITOR::Reset( RESET_REASON aReason )
{
if( aReason == MODEL_RELOAD )
{
// Init variables used by every drawing tool
m_frame = getEditFrame<PL_EDITOR_FRAME>();
}
m_editPoints.reset();
}
bool PL_POINT_EDITOR::Init()
{
m_frame = getEditFrame<PL_EDITOR_FRAME>();
m_selectionTool = m_toolMgr->GetTool<PL_SELECTION_TOOL>();
return true;
}
void PL_POINT_EDITOR::updateEditedPoint( const TOOL_EVENT& aEvent )
{
EDIT_POINT* point = m_editedPoint;
if( aEvent.IsMotion() )
{
point = m_editPoints->FindPoint( aEvent.Position(), getView() );
}
else if( aEvent.IsDrag( BUT_LEFT ) )
{
point = m_editPoints->FindPoint( aEvent.DragOrigin(), getView() );
}
if( m_editedPoint != point )
setEditedPoint( point );
}
int PL_POINT_EDITOR::Main( const TOOL_EVENT& aEvent )
{
static KICAD_T pointTypes[] = { WSG_LINE_T, WSG_RECT_T, EOT };
if( !m_selectionTool )
return 0;
const PL_SELECTION& selection = m_selectionTool->GetSelection();
if( selection.Size() != 1 || !selection.Front()->IsType( pointTypes ) )
return 0;
// Wait till drawing tool is done
if( selection.Front()->IsNew() )
return 0;
Activate();
KIGFX::VIEW_CONTROLS* controls = getViewControls();
KIGFX::VIEW* view = getView();
EDA_ITEM* item = (EDA_ITEM*) selection.Front();
controls->ShowCursor( true );
m_editPoints = EDIT_POINTS_FACTORY::Make( item );
if( !m_editPoints )
return 0;
view->Add( m_editPoints.get() );
setEditedPoint( nullptr );
bool inDrag = false;
bool modified = false;
// Main loop: keep receiving events
while( TOOL_EVENT* evt = Wait() )
{
if( !m_editPoints || TOOL_EVT_UTILS::IsSelectionEvent( *evt ) )
break;
if ( !inDrag )
updateEditedPoint( *evt );
if( evt->IsDrag( BUT_LEFT ) && m_editedPoint )
{
if( !inDrag )
{
m_frame->SaveCopyInUndoList();
controls->ForceCursorPosition( false );
m_frame->PushTool( _( "Drag Point" ).ToStdString() );
inDrag = true;
modified = true;
}
m_editedPoint->SetPosition( controls->GetCursorPosition( !evt->Modifier( MD_ALT ) ) );
updateItem();
updatePoints();
}
else if( inDrag && evt->IsMouseUp( BUT_LEFT ) )
{
controls->SetAutoPan( false );
m_frame->PopTool();
inDrag = false;
}
else if( evt->IsCancel() )
{
if( inDrag ) // Restore the last change
{
m_frame->PopTool();
m_frame->RollbackFromUndo();
inDrag = false;
modified = false;
}
// ESC should clear selection along with edit points
m_toolMgr->RunAction( PL_ACTIONS::clearSelection, true );
break;
}
else
evt->SetPassEvent();
controls->SetAutoPan( inDrag );
controls->CaptureCursor( inDrag );
}
controls->SetAutoPan( false );
controls->CaptureCursor( false );
if( m_editPoints )
{
view->Remove( m_editPoints.get() );
if( modified )
m_frame->OnModify();
m_editPoints.reset();
m_frame->GetCanvas()->Refresh();
}
return 0;
}
void pinEditedCorner( int editedPointIndex, int minWidth, int minHeight, VECTOR2I& topLeft,
VECTOR2I& topRight, VECTOR2I& botLeft, VECTOR2I& botRight )
{
switch( editedPointIndex )
{
case RECT_TOPLEFT:
// pin edited point within opposite corner
topLeft.x = std::min( topLeft.x, botRight.x - minWidth );
topLeft.y = std::min( topLeft.y, botRight.y - minHeight );
// push edited point edges to adjacent corners
topRight.y = topLeft.y;
botLeft.x = topLeft.x;
break;
case RECT_TOPRIGHT:
// pin edited point within opposite corner
topRight.x = std::max( topRight.x, botLeft.x + minWidth );
topRight.y = std::min( topRight.y, botLeft.y - minHeight );
// push edited point edges to adjacent corners
topLeft.y = topRight.y;
botRight.x = topRight.x;
break;
case RECT_BOTLEFT:
// pin edited point within opposite corner
botLeft.x = std::min( botLeft.x, topRight.x - minWidth );
botLeft.y = std::max( botLeft.y, topRight.y + minHeight );
// push edited point edges to adjacent corners
botRight.y = botLeft.y;
topLeft.x = botLeft.x;
break;
case RECT_BOTRIGHT:
// pin edited point within opposite corner
botRight.x = std::max( botRight.x, topLeft.x + minWidth );
botRight.y = std::max( botRight.y, topLeft.y + minHeight );
// push edited point edges to adjacent corners
botLeft.y = botRight.y;
topRight.x = botRight.x;
break;
}
}
void PL_POINT_EDITOR::updateItem() const
{
EDA_ITEM* item = m_editPoints->GetParent();
if( !item )
return;
switch( item->Type() )
{
case WSG_LINE_T:
{
WS_DRAW_ITEM_LINE* line = (WS_DRAW_ITEM_LINE*) item;
line->SetStart( (wxPoint) m_editPoints->Point( LINE_START ).GetPosition() );
line->SetEnd( (wxPoint) m_editPoints->Point( LINE_END ).GetPosition() );
break;
}
case WSG_RECT_T:
{
WS_DRAW_ITEM_RECT* rect = (WS_DRAW_ITEM_RECT*) item;
VECTOR2I topLeft = m_editPoints->Point( RECT_TOPLEFT ).GetPosition();
VECTOR2I topRight = m_editPoints->Point( RECT_TOPRIGHT ).GetPosition();
VECTOR2I botLeft = m_editPoints->Point( RECT_BOTLEFT ).GetPosition();
VECTOR2I botRight = m_editPoints->Point( RECT_BOTRIGHT ).GetPosition();
pinEditedCorner( getEditedPointIndex(), Mils2iu( 1 ), Mils2iu( 1 ),
topLeft, topRight, botLeft, botRight );
rect->SetStart( (wxPoint) topLeft );
rect->SetEnd( (wxPoint) botRight );
break;
}
default:
break;
}
getView()->Update( item );
m_frame->SetMsgPanel( item );
}
void PL_POINT_EDITOR::updatePoints()
{
if( !m_editPoints )
return;
EDA_ITEM* item = m_editPoints->GetParent();
if( !item )
return;
switch( item->Type() )
{
case WSG_LINE_T:
{
WS_DRAW_ITEM_LINE* line = (WS_DRAW_ITEM_LINE*) item;
m_editPoints->Point( LINE_START ).SetPosition( line->GetStart() );
m_editPoints->Point( LINE_END ).SetPosition( line->GetEnd() );
break;
}
case WSG_RECT_T:
{
WS_DRAW_ITEM_RECT* rect = (WS_DRAW_ITEM_RECT*) item;
wxPoint topLeft = rect->GetPosition();
wxPoint botRight = rect->GetEnd();
m_editPoints->Point( RECT_TOPLEFT ).SetPosition( (VECTOR2I) topLeft );
m_editPoints->Point( RECT_TOPRIGHT ).SetPosition( VECTOR2I( botRight.x, topLeft.y ) );
m_editPoints->Point( RECT_BOTLEFT ).SetPosition( VECTOR2I( topLeft.x, botRight.y ) );
m_editPoints->Point( RECT_BOTRIGHT ).SetPosition( (VECTOR2I) botRight );
break;
}
default:
break;
}
getView()->Update( m_editPoints.get() );
}
void PL_POINT_EDITOR::setEditedPoint( EDIT_POINT* aPoint )
{
KIGFX::VIEW_CONTROLS* controls = getViewControls();
if( aPoint )
{
controls->ForceCursorPosition( true, aPoint->GetPosition() );
controls->ShowCursor( true );
}
else
{
controls->ShowCursor( false );
controls->ForceCursorPosition( false );
}
m_editedPoint = aPoint;
}
int PL_POINT_EDITOR::modifiedSelection( const TOOL_EVENT& aEvent )
{
updatePoints();
return 0;
}
void PL_POINT_EDITOR::setTransitions()
{
Go( &PL_POINT_EDITOR::Main, EVENTS::SelectedEvent );
Go( &PL_POINT_EDITOR::Main, ACTIONS::activatePointEditor.MakeEvent() );
Go( &PL_POINT_EDITOR::modifiedSelection, EVENTS::SelectedItemsModified );
}