GLViewer.h

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// -*- c-basic-offset: 4 -*-
#ifndef _GL_VIEWER_H
#define _GL_VIEWER_H

#include "ViewState.h"
#include "base_wx/platform.h"
#include <wx/glcanvas.h>
#include <utility>
#include <vigra/diff2d.hxx>

class GLRenderer;
class GLPanosphereOverviewRenderer;
class GLPlaneOverviewRenderer;
class TextureManager;
class MeshManager;
class ToolHelper;
class PreviewToolHelper;
class OverviewToolHelper;
class PanosphereOverviewToolHelper;
class PlaneOverviewToolHelper;
class GLPreviewFrame;




class GLViewer: public wxGLCanvas
{
public:
    GLViewer(
            wxWindow* parent, 
            HuginBase::Panorama &pano, 
            int args[], 
            GLPreviewFrame *frame,
            wxGLContext * shared_context = NULL
            );
    virtual ~GLViewer();
    void RedrawE(wxPaintEvent& e);
    void Resized(wxSizeEvent& e);
    void Redraw();
    static void RefreshWrapper(void *obj);
    void SetUpContext();
    void SetPhotometricCorrect(bool state);
    virtual void SetLayoutMode(bool state);
    virtual void SetLayoutScale(double scale);
    
    VisualizationState * m_visualization_state;
    static ViewState * m_view_state;
    static size_t m_view_state_observer;

    void SetActive(bool active) {this->active = active;}
    bool IsActive() {return active;}

    wxGLContext * GetContext() {return m_glContext;}

    void SetViewerBackground(wxColour col);
    void MarkToolsDirty();
protected:
    void OnEraseBackground(wxEraseEvent& e);
    void MouseMotion(wxMouseEvent& e);
    void MouseEnter(wxMouseEvent & e);
    void MouseLeave(wxMouseEvent & e);
    void MouseButtons(wxMouseEvent& e);
    void MouseWheel(wxMouseEvent& e);
    void KeyDown(wxKeyEvent & e);
    void KeyUp(wxKeyEvent & e);

    DECLARE_EVENT_TABLE()

    ToolHelper *m_tool_helper;
    GLRenderer *m_renderer;
    wxGLContext *m_glContext;
    HuginBase::Panorama  * m_pano;

    virtual void setUp() = 0;

    bool started_creation, redrawing, m_toolsInitialized;
    static bool initialised_glew;
    vigra::Diff2D offset;
    double m_scale = 1.0;
    GLPreviewFrame *frame;

    bool active;

    wxColour m_background_color;
};

class GLPreview : public GLViewer
{
public:
    GLPreview(
            wxWindow* parent, 
            HuginBase::Panorama &pano,
            int args[], 
            GLPreviewFrame *frame,
            wxGLContext * shared_context = NULL
            ) : GLViewer(parent, pano, args, frame, shared_context) {}
    void setUp();

};

class GLOverview : public GLViewer
{
public:
    GLOverview(
            wxWindow* parent, 
            HuginBase::Panorama &pano,
            int args[], 
            GLPreviewFrame *frame,
            wxGLContext * shared_context = NULL
            ) : GLViewer(parent, pano, args, frame, shared_context) {
        panosphere_m_renderer = 0;
        plane_m_renderer = 0;
    }
    ~GLOverview();

    void setUp();

    virtual void SetLayoutMode(bool state);
    virtual void SetLayoutScale(double scale);

    enum OverviewMode {
        PANOSPHERE_OUTSIDE,
        PANOSPHERE_INSIDE,
        PLANE
    };

    void SetMode(OverviewMode mode);
    OverviewMode GetMode() {return mode;}

protected:

    OverviewMode mode;

    PanosphereOverviewVisualizationState * panosphere_m_visualization_state;
    PanosphereOverviewToolHelper * panosphere_m_tool_helper;
    GLPanosphereOverviewRenderer * panosphere_m_renderer;
    
    PlaneOverviewVisualizationState * plane_m_visualization_state;
    PlaneOverviewToolHelper * plane_m_tool_helper;
    GLPlaneOverviewRenderer * plane_m_renderer;

};

#endif