git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45547 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			310 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			310 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/////////////////////////////////////////////////////////////////////////////
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// Name:        wx/dcsvg.h
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// Purpose:     wxSVGFileDC
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// Author:      Chris Elliott
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// Modified by:
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// Created:
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// Copyright:   (c) Chris Elliott
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// RCS-ID:      $Id$
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// Licence:     wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __DCSVG_H
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#define __DCSVG_H
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#include "wx/wfstream.h"
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#include "wx/string.h"
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#define wxSVGVersion wxT("v0100")
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class WXDLLIMPEXP_CORE wxSVGFileDC : public wxDC
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{
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    private:
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        wxFileOutputStream * m_outfile ;
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        wxString m_filename ;
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        //holds number of png format images we have
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        int m_sub_images ;
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        bool m_OK, m_graphics_changed ;
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        int m_width, m_height ;
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        double
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            m_logicalScaleX,
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            m_logicalScaleY,
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            m_userScaleX,
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            m_userScaleY,
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            m_scaleX,
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            m_scaleY,
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            m_OriginX,
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            m_OriginY,
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            m_mm_to_pix_x,
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            m_mm_to_pix_y;
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        bool
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            m_needComputeScaleX,
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            m_needComputeScaleY; // not yet used
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        bool DoGetPixel(wxCoord, wxCoord, class wxColour *) const
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoGetPixel Call not implemented")); return true; }
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        virtual bool DoBlit(wxCoord, wxCoord, wxCoord, wxCoord, class wxDC *,
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            wxCoord, wxCoord, int = wxCOPY, bool = 0, int = -1, int = -1) ;
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        void DoCrossHair(wxCoord, wxCoord)
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::CrossHair Call not implemented")); return  ; }
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        void DoDrawArc(wxCoord, wxCoord, wxCoord, wxCoord, wxCoord, wxCoord);
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        void DoDrawBitmap(const class wxBitmap &, wxCoord, wxCoord, bool = 0) ;
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        void DoDrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
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        void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
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        void DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) ;
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        void DoDrawIcon(const class wxIcon &, wxCoord, wxCoord) ;
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        void DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) ;
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        void DoDrawPoint(wxCoord, wxCoord) ;
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        void DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) ;
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        void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
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        void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) ;
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        void DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius = 20)  ;
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        void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
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        bool DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour& WXUNUSED(col),
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                             int WXUNUSED(style) = wxFLOOD_SURFACE)
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoFloodFill Call not implemented")); return false ; }
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        void DoGetSize(int * x, int *y) const { *x = m_width; *y = m_height ; return ; }
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        void DoGetTextExtent(const wxString& string, wxCoord *w, wxCoord *h, wxCoord *descent = NULL, wxCoord *externalLeading = NULL, wxFont *font = NULL) const ;
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        void DoSetClippingRegionAsRegion(const class wxRegion &)
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoSetClippingRegionAsRegion Call not yet implemented")); return  ; }
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       void Init (wxString f, int Width, int Height, float dpi);
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       void NewGraphics () ;
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#ifdef XDEV2LOG
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#undef XDEV2LOG
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#endif
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        wxCoord XDEV2LOG(wxCoord x) const
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        {
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            wxCoord new_x = x - m_deviceOriginX;
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            if (new_x > 0)
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                return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
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            else
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                return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
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        }
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#ifdef XDEV2LOGREL
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#undef XDEV2LOGREL
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#endif
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        wxCoord XDEV2LOGREL(wxCoord x) const
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        {
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            if (x > 0)
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                return (wxCoord)((double)(x) / m_scaleX + 0.5);
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            else
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                return (wxCoord)((double)(x) / m_scaleX - 0.5);
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        }
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#ifdef YDEV2LOG
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#undef YDEV2LOG
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#endif
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        wxCoord YDEV2LOG(wxCoord y) const
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        {
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            wxCoord new_y = y - m_deviceOriginY;
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            if (new_y > 0)
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                return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
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            else
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                return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
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        }
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#ifdef YDEV2LOGREL
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#undef YDEV2LOGREL
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#endif
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        wxCoord YDEV2LOGREL(wxCoord y) const
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        {
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            if (y > 0)
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                return (wxCoord)((double)(y) / m_scaleY + 0.5);
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            else
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                return (wxCoord)((double)(y) / m_scaleY - 0.5);
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        }
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#ifdef XLOG2DEV
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#undef XLOG2DEV
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#endif
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        wxCoord XLOG2DEV(wxCoord x) const
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        {
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            wxCoord new_x = x - m_logicalOriginX;
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            if (new_x > 0)
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                return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
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            else
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                return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
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        }
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#ifdef XLOG2DEVREL
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#undef XLOG2DEVREL
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#endif
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        wxCoord XLOG2DEVREL(wxCoord x) const
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        {
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            if (x > 0)
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                return (wxCoord)((double)(x) * m_scaleX + 0.5);
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            else
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                return (wxCoord)((double)(x) * m_scaleX - 0.5);
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        }
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#ifdef YLOG2DEV
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#undef YLOG2DEV
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#endif
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        wxCoord YLOG2DEV(wxCoord y) const
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        {
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            wxCoord new_y = y - m_logicalOriginY;
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            if (new_y > 0)
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                return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
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            else
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                return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
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        }
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#ifdef YLOG2DEVREL
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#undef YLOG2DEVREL
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#endif
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        wxCoord YLOG2DEVREL(wxCoord y) const
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        {
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            if (y > 0)
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                return (wxCoord)((double)(y) * m_scaleY + 0.5);
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            else
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                return (wxCoord)((double)(y) * m_scaleY - 0.5);
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        }
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        void write(const wxString &s);
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    public:
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        wxSVGFileDC (wxString f);
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        wxSVGFileDC (wxString f, int Width, int Height);
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        wxSVGFileDC (wxString f, int Width, int Height, float dpi);
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        ~wxSVGFileDC();
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        bool CanDrawBitmap() const { return true; }
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        bool CanGetTextExtent() const { return true; }
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        int GetDepth() const
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetDepth Call not implemented")); return -1 ; }
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        void BeginDrawing() { return;}
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        bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC* source, wxCoord xsrc, wxCoord ysrc, int logicalFunc = wxCOPY, bool useMask = false)
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            { return DoBlit(xdest, ydest, width, height, source, xsrc, ysrc, logicalFunc, useMask); }
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        void Clear()
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::Clear() Call not implemented \nNot sensible for an output file?")); return ; }
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        void CrossHair(wxCoord x, wxCoord y)
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            { DoCrossHair (x,y); return; }
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        virtual void ComputeScaleAndOrigin();
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        void DestroyClippingRegion()
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::void Call not yet implemented")); return ; }
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        wxCoord DeviceToLogicalX(wxCoord x) const ;
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        wxCoord DeviceToLogicalXRel(wxCoord x)  const ;
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        wxCoord DeviceToLogicalY(wxCoord y)  const ;
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        wxCoord DeviceToLogicalYRel(wxCoord y)  const ;
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        void DrawBitmap(const wxBitmap& bitmap, wxCoord x, wxCoord y, bool transparent)
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            {  DoDrawBitmap ( bitmap, x, y, transparent ) ; return ;}
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        void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
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            {DoDrawIcon(icon, x, y) ; return ; }
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        void DoDrawLines(int n, wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0) ;
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        void EndDoc()
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            { return ; }
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        void EndDrawing()
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            { return ; }
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        void EndPage()
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            {  return ; }
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        void FloodFill(wxCoord x, wxCoord y, wxColour *colour, int style=wxFLOOD_SURFACE)
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            { DoFloodFill (x, y, *colour, style); return ;}
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        wxCoord GetCharHeight() const;
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        wxCoord GetCharWidth() const;
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        void GetClippingBox(wxCoord *WXUNUSED(x), wxCoord *WXUNUSED(y), wxCoord * WXUNUSED(width), wxCoord * WXUNUSED(height))
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetClippingBox Call not yet implemented")); return ; }
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        int GetLogicalFunction() const
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetLogicalFunction()  Call not implemented")); return wxCOPY ; }
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        int GetMapMode() const ;
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        bool GetPixel(wxCoord x, wxCoord y, wxColour *colour)
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            { return DoGetPixel (x, y, colour) ; }
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        void GetUserScale(double *x, double *y) const ;
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        wxCoord LogicalToDeviceX(wxCoord x)  const ;
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        wxCoord LogicalToDeviceXRel(wxCoord x)  const ;
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        wxCoord LogicalToDeviceY(wxCoord y)  const ;
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        wxCoord LogicalToDeviceYRel(wxCoord y)  const ;
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        bool Ok() const {return m_OK;}
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        void SetAxisOrientation( bool xLeftRight, bool yBottomUp ) ;
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        void SetClippingRegion(wxCoord  WXUNUSED(x), wxCoord  WXUNUSED(y), wxCoord  WXUNUSED(width), wxCoord  WXUNUSED(height))
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetClippingRegion Call not yet implemented")); return ; }
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        void SetPalette(const wxPalette&  WXUNUSED(palette))
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetPalette Call not yet implemented")); return ; }
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        void SetBackground( const wxBrush &brush ) ;
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        void SetBackgroundMode( int mode ) ;
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        void SetBrush(const wxBrush& brush) ;
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        void SetFont(const wxFont& font) ;
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        void SetLogicalFunction(int  WXUNUSED(function))
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            { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetLogicalFunction Call implemented")); return ; }
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        void SetLogicalScale( double x, double y ) ;
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        void SetLogicalOrigin( wxCoord x, wxCoord y ) ;
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        void SetDeviceOrigin( wxCoord x, wxCoord y ) ;
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        void SetMapMode(int anint) ;
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        void SetPen(const wxPen& pen)  ;
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        void SetUserScale(double xScale, double yScale) ;
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        bool StartDoc(const wxString&  WXUNUSED(message))
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            {  return false; }
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        void StartPage()
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            {  return ; }
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};
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#endif      // __DCSVG_H
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