IMG/IMG_FileFilterWindow.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * Produced by:
 *      Mark Alexander
 *      Side Effects Software Inc
 *      477 Richmond Street West
 *      Toronto, Ontario
 *      Canada   M5V 3E7
 *      416-504-9876
 *
 * NAME:        IMG_FileFilterWindow ( IMG Library, C++)
 *
 * COMMENTS:
 *
 *    Implements data windowing abstraction for files.
 *
 */
#ifndef IMG_FILE_FILTER_WINDOW_H
#define IMG_FILE_FILTER_WINDOW_H

class PXL_FillParms;

#include <UT/UT_Rect.h>
#include <UT/UT_IntArray.h>
#include <UT/UT_PtrArray.h>

#include "IMG_FileFilter.h"

class IMG_API IMG_FileFilterWindow : public IMG_FileFilter
{
public:
             IMG_FileFilterWindow(IMG_File *file_to_filter);
    virtual ~IMG_FileFilterWindow();

    virtual const char  *className() const { return "IMG_FileFilterWindow"; }
    
    void        initWindow(const UT_DimRect &user_area);

    virtual const void  *readPlaneScanline(int y, const IMG_Plane &pi);
    
    virtual int  writePlaneScanline(const void *data, int y,
                                    const IMG_Plane &pi);

    virtual void computeCommonData();
private:
    
    void         fillBG(void *buffer, const IMG_Plane &pi,
                        PXL_FillParms *parms);
    void         fillScan(void *buffer, const void *input,
                          const IMG_Plane &pi,
                          IMG_Stat &stat, IMG_Stat &istat);
    void         clearScan(void *buffer, const IMG_Plane &pi);
    
    virtual void finishedScanline(int scan);

    UT_DimRect  myInWindow;
    UT_DimRect  myOutWindow;
    bool        myDisjointFlag;
    fpreal      myBGColor[4];
    bool        myStreakFlag;
    
    UT_PtrArray<PXL_FillParms *> myPlaneFill;
    UT_PtrArray<PXL_FillParms *> myPlaneFillLeft;
    UT_PtrArray<PXL_FillParms *> myPlaneFillRight;
    UT_IntArray                  myPlaneScanline;
};

#endif

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