PreviewPanel.h

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// -*- c-basic-offset: 4 -*-
#ifndef _PREVIEWPANEL_H
#define _PREVIEWPANEL_H
 
#include <vector>
 
#include <base_wx/wxImageCache.h>
 
#include <vigra_ext/ROIImage.h>
 
class wxImage;
class PreviewFrame;
 
class PreviewPanel : public wxPanel, public HuginBase::PanoramaObserver
{
    typedef HuginBase::Nona::RemappedPanoImage<vigra::BRGBImage, vigra::BImage> RemappedImage;
public:
 
    PreviewPanel();
 
    bool Create(wxWindow* parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = wxTAB_TRAVERSAL, const wxString& name = "panel");
 
    void Init(PreviewFrame *parent, HuginBase::Panorama * pano );
 
    virtual ~PreviewPanel();
 
    void panoramaChanged(HuginBase::Panorama &pano);
    void panoramaImagesChanged(HuginBase::Panorama &pano, const HuginBase::UIntSet & imgNr);
 
    void SetAutoUpdate(bool enabled);
 
    // forces an update of all images.
    void ForceUpdate();
 
    // select which images should be shown.
//    void SetDisplayedImages(const HuginBase::UIntSet &images);
    
    // blending modes available
    enum BlendMode { BLEND_COPY, BLEND_DIFFERENCE };
    
    void SetBlendMode(BlendMode b);
 
private:
 
    // draw the preview directly onto the canvas
    void DrawPreview(wxDC & dc);
 
    // remaps the images, called automatically if autopreview is enabled.
    void updatePreview();
 
    void mapPreviewImage(unsigned int imgNr);
 
    void OnResize(wxSizeEvent & e);
    void OnPaint(wxPaintEvent & event);
    void OnMouse(wxMouseEvent & e);
    void mousePressRMBEvent(wxMouseEvent & e);
    void mousePressLMBEvent(wxMouseEvent & e);
 
    void OnUpdatePreview(wxCommandEvent & e);
    void DrawOutline(const std::vector<hugin_utils::FDiff2D> & points, wxDC & dc, int offX, int offY);
 
    void mouse2erect(int xm, int ym, double &xd, double & yd);
 
    HuginBase::Panorama  * pano;
 
    bool m_autoPreview;
 
    vigra::Diff2D m_panoImgSize;
 
        wxBitmap * m_panoBitmap;
    // currently updating the preview.
 
    HuginBase::UIntSet m_dirtyImgs;
 
    // panorama options
    HuginBase::PanoramaOptions opts;
 
    // transformation for current preview coordinates into equirect coordinates
    HuginBase::PTools::Transform * m_pano2erect;
 
    // cache for remapped images
    SmallRemappedImageCache m_remapCache;
 
    BlendMode m_blendMode;
 
    PreviewFrame * parentWindow;
    wxCursor * m_cursor;
 
    bool m_state_rendering;
    bool m_rerender;
    bool m_imgsDirty;
 
    DECLARE_DYNAMIC_CLASS(PreviewPanel)
};
 
class PreviewPanelXmlHandler : public wxXmlResourceHandler
{
    DECLARE_DYNAMIC_CLASS(PreviewPanelXmlHandler)
 
    public:
        PreviewPanelXmlHandler();
        virtual wxObject *DoCreateResource();
        virtual bool CanHandle(wxXmlNode *node);
};
 
#endif // _PREVIEWPANEL_H