tool_manager.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 CERN
 * Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Tomasz Wlostowski <[email protected]>
 * @author Maciej Suminski <[email protected]>
 *
 * 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
 */

#ifndef __TOOL_MANAGER_H
#define __TOOL_MANAGER_H

#include <typeinfo>
#include <map>
#include <list>
#include <stack>

#include <tool/tool_base.h>
#include <tool/tool_event.h>
#include <view/view_controls.h>

class TOOLS_HOLDER;
class TOOL_ACTION;
class TOOL_BASE;
class ACTION_MANAGER;
class ACTION_MENU;
class APP_SETTINGS_BASE;


class TOOL_MANAGER
{
private:
 struct TOOL_STATE;

public:
 TOOL_MANAGER();

 ~TOOL_MANAGER();

 // Helper typedefs
 typedef std::map<TOOL_BASE*, TOOL_STATE*> TOOL_STATE_MAP;
 typedef std::map<std::string, TOOL_STATE*> NAME_STATE_MAP;
 typedef std::map<TOOL_ID, TOOL_STATE*> ID_STATE_MAP;
 typedef std::list<TOOL_ID> ID_LIST;
 typedef std::vector<TOOL_BASE*> TOOL_VEC;

 static TOOL_ID MakeToolId( const std::string& aToolName );

 void RegisterTool( TOOL_BASE* aTool );

 bool InvokeTool( TOOL_ID aToolId );

 bool InvokeTool( const std::string& aToolName );

 void ShutdownAllTools();

 void ShutdownTool( TOOL_BASE* aTool );

 void ShutdownTool( TOOL_ID aToolId );

 void ShutdownTool( const std::string& aToolName );

 template<typename T>
 bool RunAction( const std::string& aActionName, bool aNow = false, T aParam = NULL )
 {
 return RunAction( aActionName, aNow, reinterpret_cast<void*>( aParam ) );
 }

 bool RunAction( const std::string& aActionName, bool aNow, void* aParam );

 bool RunAction( const std::string& aActionName, bool aNow = false )
 {
 return RunAction( aActionName, aNow, (void*) NULL );
 }

 template <typename T>
 bool RunAction( const TOOL_ACTION& aAction, bool aNow = false, T aParam = NULL )
 {
 return RunAction( aAction, aNow, reinterpret_cast<void*>( aParam ) );
 }

 bool RunAction( const TOOL_ACTION& aAction, bool aNow, void* aParam );

 bool RunAction( const TOOL_ACTION& aAction, bool aNow = false )
 {
 return RunAction( aAction, aNow, (void*) NULL );
 }

 const std::map<std::string, TOOL_ACTION*>& GetActions() const;

 void CancelTool();

 void PrimeTool( const VECTOR2D& aPosition );

 int GetHotKey( const TOOL_ACTION& aAction ) const;

 ACTION_MANAGER* GetActionManager() const { return m_actionMgr; }

 TOOL_BASE* FindTool( int aId ) const;

 TOOL_BASE* FindTool( const std::string& aName ) const;

 /*
 * Return the tool of given type or nullptr if there is no such tool registered.
 */
 template<typename T>
 T* GetTool()
 {
 std::map<const char*, TOOL_BASE*>::iterator tool = m_toolTypes.find( typeid( T ).name() );

 if( tool != m_toolTypes.end() )
 return static_cast<T*>( tool->second );

 return nullptr;
 }

 void DeactivateTool();


 bool IsToolActive( TOOL_ID aId ) const;


 void ResetTools( TOOL_BASE::RESET_REASON aReason );

 void InitTools();

 bool ProcessEvent( const TOOL_EVENT& aEvent );

 void PostEvent( const TOOL_EVENT& aEvent );

 void SetEnvironment( EDA_ITEM* aModel, KIGFX::VIEW* aView,
 KIGFX::VIEW_CONTROLS* aViewControls, APP_SETTINGS_BASE* aSettings,
 TOOLS_HOLDER* aFrame );

 /*
 * Accessors for the environment objects (view, model, etc.)
 */
 KIGFX::VIEW* GetView() const { return m_view; }

 KIGFX::VIEW_CONTROLS* GetViewControls() const { return m_viewControls; }

 VECTOR2D GetMousePosition() const;
 VECTOR2D GetCursorPosition() const;

 EDA_ITEM* GetModel() const { return m_model; }

 APP_SETTINGS_BASE* GetSettings() const { return m_settings; }

 TOOLS_HOLDER* GetToolHolder() const { return m_frame; }

 inline int GetCurrentToolId() const
 {
 return m_activeTools.empty() ? -1 : m_activeTools.front();
 }

 inline TOOL_BASE* GetCurrentTool() const
 {
 return FindTool( GetCurrentToolId() );
 }

 TOOL_STATE* GetCurrentToolState() const
 {
 auto it = m_toolIdIndex.find( GetCurrentToolId() );
 return ( it != m_toolIdIndex.end() ) ? it->second : nullptr;
 }

 int GetPriority( int aToolId ) const;

 void ScheduleNextState( TOOL_BASE* aTool, TOOL_STATE_FUNC& aHandler,
 const TOOL_EVENT_LIST& aConditions );

 void ClearTransitions( TOOL_BASE* aTool );

 void RunMainStack( TOOL_BASE* aTool, std::function<void()> aFunc );

 void UpdateUI( const TOOL_EVENT& aEvent );

 TOOL_EVENT* ScheduleWait( TOOL_BASE* aTool, const TOOL_EVENT_LIST& aConditions );

 void ScheduleContextMenu( TOOL_BASE* aTool, ACTION_MENU* aMenu, CONTEXT_MENU_TRIGGER aTrigger );

 bool SaveClipboard( const std::string& aTextUTF8 );

 std::string GetClipboardUTF8() const;

 const KIGFX::VC_SETTINGS& GetCurrentToolVC() const;

 bool IsContextMenuActive() const
 {
 return m_menuActive;
 }

 void VetoContextMenuMouseWarp()
 {
 m_warpMouseAfterContextMenu = false;
 }

 void DispatchContextMenu( const TOOL_EVENT& aEvent );

 bool DispatchHotKey( const TOOL_EVENT& aEvent );

 VECTOR2D GetMenuCursorPos() const
 {
 return m_menuCursor;
 }

private:
 typedef std::pair<TOOL_EVENT_LIST, TOOL_STATE_FUNC> TRANSITION;

 bool dispatchInternal( TOOL_EVENT& aEvent );

 bool dispatchActivation( const TOOL_EVENT& aEvent );

 bool invokeTool( TOOL_BASE* aTool );

 bool runTool( TOOL_BASE* aTool );

 ID_LIST::iterator finishTool( TOOL_STATE* aState );

 bool isRegistered( TOOL_BASE* aTool ) const
 {
 return m_toolState.count( aTool ) > 0;
 }

 bool isActive( TOOL_BASE* aTool ) const;

 void saveViewControls( TOOL_STATE* aState );

 void applyViewControls( const TOOL_STATE* aState );

 bool processEvent( const TOOL_EVENT& aEvent );

 void setActiveState( TOOL_STATE* aState );

 TOOL_VEC m_toolOrder;

 TOOL_STATE_MAP m_toolState;

 NAME_STATE_MAP m_toolNameIndex;

 ID_STATE_MAP m_toolIdIndex;

 std::map<const char*, TOOL_BASE*> m_toolTypes;

 ID_LIST m_activeTools;

 ACTION_MANAGER* m_actionMgr;

 std::map<TOOL_ID, OPT<VECTOR2D>> m_cursorSettings;

 EDA_ITEM* m_model;
 KIGFX::VIEW* m_view;
 KIGFX::VIEW_CONTROLS* m_viewControls;
 TOOLS_HOLDER* m_frame;
 APP_SETTINGS_BASE* m_settings;

 std::list<TOOL_EVENT> m_eventQueue;

 VECTOR2D m_menuCursor;

 bool m_warpMouseAfterContextMenu;

 bool m_menuActive;

 TOOL_ID m_menuOwner;

 TOOL_STATE* m_activeState;
};

#endif // __TOOL_MANAGER_H