Camera.h

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/*
 *  Copyright (C) 2017  Thales Lima Oliveira <thales@ufu.br>
 *
 *  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
 *  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, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef CAMERA_H
#define CAMERA_H
 
#include <wx/geometry.h>
 
class Camera
{
   public:
    Camera();
    ~Camera();
 
    void SetScale(wxPoint2DDouble screenPoint, double delta);
    void SetScale(double scale) { m_scale = scale; }
    void SetTranslation(wxPoint2DDouble screenPoint);
    void StartTranslation(wxPoint2DDouble startPoint) { this->m_translationStartPt = startPoint; }
    void UpdateMousePosition(wxPoint2DDouble mousePosition) { this->m_mousePosition = mousePosition; }
    double GetScale() const { return m_scale; }
    wxPoint2DDouble GetTranslation() const { return m_translation; }
    wxPoint2DDouble GetMousePosition(bool worldCoords = true) const;
    wxPoint2DDouble ScreenToWorld(wxPoint2DDouble screenCoords) const;
    double GetZoomMin() const { return m_zoomMin; }
    double GetZoomMax() const { return m_zoomMax; }
   protected:
    wxPoint2DDouble m_translation;
    wxPoint2DDouble m_translationStartPt;
    double m_scale;
 
    wxPoint2DDouble m_mousePosition;
 
    double m_zoomMin = 0.01;
    double m_zoomMax = 3.0;
};
 
#endif  // CAMERA_H