tool_manager.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013-2023 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 <list>
#include <map>
#include <stack>
#include <vector>
#include <typeinfo>
#include <type_traits>
 
#include <tool/tool_base.h>
#include <tool/tool_event.h>
 
namespace KIGFX
{
class VIEW_CONTROLS;
struct VC_SETTINGS;
}
 
class COMMIT;
class TOOLS_HOLDER;
class TOOL_ACTION;
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;
 
 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, std::enable_if_t<!std::is_convertible_v<T*, COMMIT*>>* = nullptr>
 bool RunAction( const std::string& aActionName, T aParam )
 {
 // Use a cast to ensure the proper type is stored inside the parameter
 std::any a( static_cast<T>( aParam ) );
 
 return doRunAction( aActionName, true, a, nullptr );
 }
 
 bool RunAction( const std::string& aActionName )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 return doRunAction( aActionName, true, a, nullptr );
 }
 
 template<typename T, std::enable_if_t<!std::is_convertible_v<T, COMMIT*>>* = nullptr>
 bool RunAction( const TOOL_ACTION& aAction, T aParam )
 {
 // Use a cast to ensure the proper type is stored inside the parameter
 std::any a( static_cast<T>( aParam ) );
 
 return doRunAction( aAction, true, a, nullptr );
 }
 
 template<typename T>
 bool RunSynchronousAction( const TOOL_ACTION& aAction, COMMIT* aCommit, T aParam )
 {
 // Use a cast to ensure the proper type is stored inside the parameter
 std::any a( static_cast<T>( aParam ) );
 
 return doRunAction( aAction, true, a, aCommit );
 }
 
 bool RunSynchronousAction( const TOOL_ACTION& aAction, COMMIT* aCommit )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 return doRunAction( aAction, true, a, aCommit );
 }
 
 bool RunAction( const TOOL_ACTION& aAction )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 return doRunAction( aAction, true, a, nullptr );
 }
 
 template<typename T>
 bool PostAction( const std::string& aActionName, T aParam )
 {
 // Use a cast to ensure the proper type is stored inside the parameter
 std::any a( static_cast<T>( aParam ) );
 
 return doRunAction( aActionName, false, a, nullptr );
 }
 
 bool PostAction( const std::string& aActionName )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 return doRunAction( aActionName, false, a, nullptr );
 }
 
 template<typename T>
 bool PostAction( const TOOL_ACTION& aAction, T aParam )
 {
 // Use a cast to ensure the proper type is stored inside the parameter
 std::any a( static_cast<T>( aParam ) );
 
 return doRunAction( aAction, false, a, nullptr );
 }
 
 void PostAction( const TOOL_ACTION& aAction )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 doRunAction( aAction, false, a, nullptr );
 }
 
 bool PostAction( const TOOL_ACTION& aAction, COMMIT* aCommit )
 {
 // Default initialize the parameter argument to an empty std::any
 std::any a;
 
 return doRunAction( aAction, false, a, aCommit );
 }
 
 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;
 }
 
 /*
 * Return all registered tools.
 */
 std::vector<TOOL_BASE*> Tools() { return m_toolOrder; }
 
 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 doRunAction( const TOOL_ACTION& aAction, bool aNow, const std::any& aParam, COMMIT* aCommit );
 bool doRunAction( const std::string& aActionName, bool aNow, const std::any& aParam, COMMIT* aCommit );
 
 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 );
 
private:
 std::vector<TOOL_BASE*> 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, std::optional<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;
 
 bool m_shuttingDown;
};
 
#endif // TOOL_MANAGER_H