wx_view_controls.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2012 Torsten Hueter, torstenhtr <at> gmx.de
 * Copyright (C) 2013 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * @author Tomasz Wlostowski <[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 __WX_VIEW_CONTROLS_H
#define __WX_VIEW_CONTROLS_H
 
#include <view/view_controls.h>
#include <wx/timer.h>
#include <memory>
 
class EDA_DRAW_PANEL_GAL;
class PROF_COUNTER;
 
namespace KIGFX
{
 
class ZOOM_CONTROLLER;
 
class WX_VIEW_CONTROLS : public VIEW_CONTROLS, public wxEvtHandler
{
public:
    WX_VIEW_CONTROLS( VIEW* aView, EDA_DRAW_PANEL_GAL* aParentPanel );
    virtual ~WX_VIEW_CONTROLS();
 
    void onWheel( wxMouseEvent& aEvent );
    void onMotion( wxMouseEvent& aEvent );
    void onMagnify( wxMouseEvent& aEvent );
    void onButton( wxMouseEvent& aEvent );
    void onEnter( wxMouseEvent& WXUNUSED( aEvent ) );
    void onLeave( wxMouseEvent& WXUNUSED( aEvent ) );
    void onTimer( wxTimerEvent& WXUNUSED( aEvent ) );
    void onZoomGesture( wxZoomGestureEvent& aEvent );
    void onPanGesture( wxPanGestureEvent& aEvent );
    void onScroll( wxScrollWinEvent& aEvent );
    void onCaptureLost( wxMouseEvent& WXUNUSED( aEvent ) );
 
 
    void CaptureCursor( bool aEnabled ) override;
 
 
    void PinCursorInsideNonAutoscrollArea( bool aWarpMouseCursor ) override;
 
    VECTOR2D GetMousePosition( bool aWorldCoordinates = true ) const override;
 
    using VIEW_CONTROLS::GetCursorPosition;
 
    VECTOR2D GetCursorPosition( bool aSnappingEnabled ) const override;
 
    VECTOR2D GetRawCursorPosition( bool aSnappingEnabled = true ) const override;
 
    void SetCursorPosition( const VECTOR2D& aPosition, bool warpView,
                            bool aTriggeredByArrows, long aArrowCommand ) override;
 
    void SetCrossHairCursorPosition( const VECTOR2D& aPosition, bool aWarpView ) override;
 
    void WarpMouseCursor( const VECTOR2D& aPosition, bool aWorldCoordinates = false,
                          bool aWarpView = false ) override;
 
    void CenterOnCursor() override;
 
    void UpdateScrollbars();
 
    void CancelDrag();
 
    void ForceCursorPosition( bool aEnabled,
                              const VECTOR2D& aPosition = VECTOR2D( 0, 0 ) ) override;
 
    void LoadSettings() override;
 
    static const wxEventType EVT_REFRESH_MOUSE;
 
    std::unique_ptr<PROF_COUNTER> m_MotionEventCounter;
 
private:
    enum STATE
    {
        IDLE = 1,           
        DRAG_PANNING,       
        AUTO_PANNING,       
        DRAG_ZOOMING,       
    };
 
    void setState( STATE aNewState );
 
    bool handleAutoPanning( const wxMouseEvent& aEvent );
 
    void handleCursorCapture( int x, int y );
 
    void refreshMouse( bool aSetModifiers);
 
    wxPoint getMouseScreenPosition() const;
 
    STATE       m_state;
 
    EDA_DRAW_PANEL_GAL* m_parentPanel;
 
    VECTOR2D    m_dragStartPoint;
 
    VECTOR2D    m_panDirection;
 
    wxTimer     m_panTimer;
 
    VECTOR2D    m_scrollScale;
 
    VECTOR2I    m_scrollPos;
 
    VECTOR2D      m_zoomStartPoint;
 
    VECTOR2D    m_cursorPos;
 
    bool        m_updateCursor;
 
    bool m_infinitePanWorks;
 
    std::unique_ptr<ZOOM_CONTROLLER> m_zoomController;
 
    double   m_gestureLastZoomFactor;
    VECTOR2D m_gestureLastPos;
};
} // namespace KIGFX
 
#endif