vectrndr.h

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// $Id: vectrndr.h 751 2006-03-31 15:43:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

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License described above, Xara Group Ltd grants to you certain additional
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The additional rights are to use, modify, and distribute the software
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=================================XARAHEADEREND============================
 */
#ifndef _INC_VECTOR_RENDER_REGION_H
#define _INC_VECTOR_RENDER_REGION_H

/********************************************************************************************

>   class VectorFileRenderRegion : public RenderRegion

    Author:     Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com>
    Created:    26/10/00
    Purpose:    Encapsulates the functions shared by the CMX, EPS, and Flash render regions.
                This class is never itself instantiated.

********************************************************************************************/

class VectorFileRenderRegion : public RenderRegion
{
    CC_DECLARE_DYNAMIC ( VectorFileRenderRegion )

public:

    // Constructors.
    VectorFileRenderRegion( void );
    VectorFileRenderRegion( DocRect ClipRect,
                             Matrix     ConvertMatrix,
                             FIXED16    ViewScale );

    // Destructor.
    virtual ~VectorFileRenderRegion( void );

    // Initialisation code.
    BOOL Init( void );

    // Start and stop rendering.
    virtual BOOL StartRender( void );
    virtual BOOL StopRender( void );        

    // These functions are never called, but are included to over-ride pure virtuals in the
    // base class.
    void DrawRect( DocRect *RectToRender );
    void DrawDragRect( DocRect *RectToRender );
    void DrawLine( const DocCoord   &StartPoint,
                    const DocCoord  &EndPoint );
    void DrawPixel( const DocCoord &Point );
    void DrawBlob( DocCoord p,
                    BlobType    type );
    void DrawCross( const DocCoord  &Point,
                     const UINT32       Size );
    void DrawBitmap( const DocCoord &Point,
                      KernelBitmap*     pBitmap );
    void DrawBitmap( const DocCoord &Point,
                      UINT32                BitmapID,
                      UINT32                ToolID = NULL );
    void DrawBitmapBlob( const DocCoord &Point,
                          KernelBitmap*     BlobShape );
    void DrawBitmapBlob( const DocCoord &Point, ResourceID resID );

protected:

    // Calculate the size of a pixel.
    MILLIPOINT CalcPixelWidth();
    MILLIPOINT CalcScaledPixelWidth();

    // Initialisation functions.
    virtual void InitClipping();
    virtual void InitAttributes();
    virtual void DeInitAttributes();
    virtual void SetOSDrawingMode();
    virtual void SetQualityLevel();

    // Blending function for rendering shadows.
    DocColour AlphaBlend( DocColour &Foreground,
                           DocColour &Background,
                           UINT32 Transp );

    // Member variables.
    AttributeEntry  *LastOutputAttrs;
};

#endif

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