kicad/common/tool/picker_tool.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
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* Copyright (C) 2019 CERN
* 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 <tool/actions.h>
#include <tool/picker_tool.h>
#include <view/view_controls.h>
#include <eda_draw_frame.h>
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PICKER_TOOL::PICKER_TOOL() :
TOOL_INTERACTIVE( "common.InteractivePicker" ),
m_frame( nullptr )
{
resetPicker();
}
bool PICKER_TOOL::Init()
{
m_frame = getEditFrame<EDA_DRAW_FRAME>();
auto& ctxMenu = m_menu.GetMenu();
// cancel current tool goes in main context menu at the top if present
ctxMenu.AddItem( ACTIONS::cancelInteractive, SELECTION_CONDITIONS::ShowAlways, 1 );
ctxMenu.AddSeparator( 1 );
// Finally, add the standard zoom/grid items
m_frame->AddStandardSubMenus( m_menu );
return true;
}
int PICKER_TOOL::Main( const TOOL_EVENT& aEvent )
{
KIGFX::VIEW_CONTROLS* controls = getViewControls();
int finalize_state = WAIT_CANCEL;
std::string tool = *aEvent.Parameter<std::string*>();
m_frame->PushTool( tool );
Activate();
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setControls();
auto setCursor =
[&]()
{
m_frame->GetCanvas()->SetCurrentCursor( m_cursor );
};
// Set initial cursor
setCursor();
while( TOOL_EVENT* evt = Wait() )
{
setCursor();
VECTOR2D cursorPos = controls->GetCursorPosition( m_frame->IsGridVisible() );
if( evt->IsCancelInteractive() || evt->IsActivate() )
{
if( m_cancelHandler )
{
try
{
(*m_cancelHandler)();
}
catch( std::exception& )
{
}
}
// Activating a new tool may have alternate finalization from canceling the current
// tool
if( evt->IsActivate() )
{
finalize_state = END_ACTIVATE;
}
else
{
evt->SetPassEvent( false );
finalize_state = EVT_CANCEL;
}
break;
}
else if( evt->IsClick( BUT_LEFT ) )
{
bool getNext = false;
m_picked = cursorPos;
if( m_clickHandler )
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{
try
{
getNext = (*m_clickHandler)( *m_picked );
}
catch( std::exception& )
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{
finalize_state = EXCEPTION_CANCEL;
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break;
}
}
if( !getNext )
{
finalize_state = CLICK_CANCEL;
break;
}
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else
setControls();
}
else if( evt->IsMotion() )
{
if( m_motionHandler )
{
try
{
(*m_motionHandler)( cursorPos );
}
catch( std::exception& )
{
}
}
}
else if( evt->IsDblClick( BUT_LEFT ) || evt->IsDrag( BUT_LEFT ) )
{
// Not currently used, but we don't want to pass them either
}
else if( evt->IsClick( BUT_RIGHT ) )
{
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m_menu.ShowContextMenu();
}
else
evt->SetPassEvent();
}
if( m_finalizeHandler )
{
try
{
(*m_finalizeHandler)( finalize_state );
}
catch( std::exception& )
{
}
}
resetPicker();
controls->ForceCursorPosition( false );
m_frame->PopTool( tool );
return 0;
}
void PICKER_TOOL::setTransitions()
{
Go( &PICKER_TOOL::Main, ACTIONS::pickerTool.MakeEvent() );
}
void PICKER_TOOL::resetPicker()
{
m_cursor = KICURSOR::ARROW;
m_picked = NULLOPT;
m_clickHandler = NULLOPT;
m_motionHandler = NULLOPT;
m_cancelHandler = NULLOPT;
m_finalizeHandler = NULLOPT;
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}
void PICKER_TOOL::setControls()
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{
KIGFX::VIEW_CONTROLS* controls = getViewControls();
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controls->CaptureCursor( false );
controls->SetAutoPan( false );
}