tools_holder.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The 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
 */
 
#ifndef  TOOL_HOLDER_H
#define  TOOL_HOLDER_H
 
#include <vector>
#include <tool/selection.h>
#include <settings/common_settings.h>
 
struct ACTION_CONDITIONS;
 
class ACTIONS;
class TOOL_ACTION;
class TOOL_DISPATCHER;
class TOOL_EVENT;
class TOOL_MANAGER;
 
/*
 * A mix-in class which allows its owner to hold a set of tools from the tool framework.
 *
 * This is just the framework; the owner is responsible for registering individual tools,
 * creating the dispatcher, etc.
 */
class TOOLS_HOLDER
{
public:
    TOOLS_HOLDER();
 
    virtual ~TOOLS_HOLDER() { }

    TOOL_MANAGER* GetToolManager() const { return m_toolManager; }
 
    TOOL_DISPATCHER* GetToolDispatcher() const { return m_toolDispatcher; }

    virtual void RegisterUIUpdateHandler( const TOOL_ACTION& aAction,
                                          const ACTION_CONDITIONS& aConditions );

    virtual void RegisterUIUpdateHandler( int aID, const ACTION_CONDITIONS& aConditions )
    {}

    virtual void UnregisterUIUpdateHandler( const TOOL_ACTION& aAction );

    virtual void UnregisterUIUpdateHandler( int aID )
    {}

    virtual SELECTION& GetCurrentSelection()
    {
        return m_dummySelection;
    }


    virtual void PushTool( const TOOL_EVENT& aEvent );

    virtual void PopTool( const TOOL_EVENT& aEvent );
 
    bool ToolStackIsEmpty() { return m_toolStack.empty(); }
 
    std::string CurrentToolName() const;
    bool IsCurrentTool( const TOOL_ACTION& aAction ) const;
 
    virtual void DisplayToolMsg( const wxString& msg ) {};
 
    virtual void ShowChangedLanguage();

    bool GetDoImmediateActions() const { return m_immediateActions; }

    MOUSE_DRAG_ACTION GetDragAction() const { return m_dragAction; }

    bool GetMoveWarpsCursor() const { return m_moveWarpsCursor; }
 
#define ENVVARS_CHANGED  0x0001
#define TEXTVARS_CHANGED 0x0002
#define HOTKEYS_CHANGED  0x0004

    virtual void CommonSettingsChanged( int aFlags = 0 );

    virtual wxWindow* GetToolCanvas() const = 0;
    virtual void RefreshCanvas() { }
 
    virtual wxString ConfigBaseName() { return wxEmptyString; }
 
protected:
    TOOL_MANAGER*     m_toolManager;
    ACTIONS*          m_actions;
    TOOL_DISPATCHER*  m_toolDispatcher;
 
    SELECTION         m_dummySelection;     // Empty dummy selection
 
    std::vector<std::string> m_toolStack;   // Stack of user-level "tools".  This is NOT a
                                            // stack of TOOL instances, because somewhat
                                            // confusingly most TOOLs implement more than one
                                            // user-level tool.  A user-level tool actually
                                            // equates to an ACTION handler, so this stack
                                            // stores ACTION names.
 
    bool              m_immediateActions;   // Preference for immediate actions.  If false,
                                            // the first invocation of a hotkey will just
                                            // select the relevant tool rather than executing
                                            // the tool's action.
    MOUSE_DRAG_ACTION m_dragAction;         // DRAG_ANY/DRAG_SELECTED/SELECT.
 
    bool              m_moveWarpsCursor;    // cursor is warped to move/drag origin
};
 
#endif  // TOOL_HOLDER_H