svg_grabber.hpp

Go to the documentation of this file.

Go to the SVN repository for this file.

#if !defined(GUI_WIDGETS_WX__SVG_GRABBER__HPP)
#define GUI_WIDGETS_WX__SVG_GRABBER__HPP
 
/*  
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors: Vladislav Evgeniev
 *
 * File Description:
 * 
 * This is the subclass of IImageGrabber specialized to work with the
 * sequence graphic view for the purpose of saving it as a vector image.
 */
 
#include <corelib/ncbistd.hpp>
#include <gui/gui_export.h>
 
#include <gui/widgets/wx/image_grabber.hpp>
 
#include <util/image/image.hpp>
#include <gui/utils/vect2.hpp>
#include <gui/opengl/glrect.hpp>
#include <gui/opengl/glpane.hpp>
 
#include <gui/print/svg_renderer.hpp>
 
#include <corelib/ncbiobj.hpp>
 
BEGIN_NCBI_SCOPE
 
class CImage;
 
class NCBI_GUIWIDGETS_WX_EXPORT CSVGGrabber : public IImageGrabber
{ 
public:
    CSVGGrabber(IVectorGraphicsRenderer& pane);
 
    virtual ~CSVGGrabber() {}
 
    virtual eCaptureResult GrabImages(int tex_size, IImageGrabberProgress* p = NULL);
 
    void SetOutputStream(CNcbiOstream* ostr);
 
protected:
    /// Called to setup values before image capturing starts.
    void x_BeginCaptures(int buffer_size);
    /// Called to restore values (in pane) when capturing stops.
    void x_EndCaptures();
 
    /// Instantiates the PDF renderer
    void x_InitRenderer();
 
    /// Pane display canvas for the tree we are saving
    IVectorGraphicsRenderer&  m_Pane;
 
    /// We change some rendering options.  These are the previous
    /// values used in m_Pane so we can set them back when were done.
    CGlPane  m_PreviousGlPane;
 
    /// Ratio scalers for the drawing area that maps to the images. 
    /// These are both 1.0 unless we are forcing the individual images
    /// to a fixed proportion in which case the scale the underlying
    /// image extent accordingly.
    CVect2<float> m_ModelViewScaler;
 
    CNcbiOstream* m_OutputStream;
 
    unique_ptr<CPrintOptions> m_PrintOptions;
    CRef<CSVGRenderer>      m_SVGRenderer;
};
 
 
END_NCBI_SCOPE
 
#endif // GUI_WIDGETS_WX__G2PS_GRABBER__HPP