gbrush.h

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// $Id: gbrush.h 1282 2006-06-09 09:46:49Z alex $
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 */

// class to use GDraw to obtain GDI brush patterns

#ifndef INC_GBRUSH
#define INC_GBRUSH

//#include "listitem.h" - in camtypes.h [AUTOMATICALLY REMOVED]

class DocColour;
class ColourContext;

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

>   class GBrush : public ListItem

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/4/94
    Purpose:    A GBrush is a way of getting to Gavin-created brushes, when available.
                It can supply GDI with better dithered brushes than it does normally.
                Before use, you should call Init which tells you whether a GBrush is
                available. If it is not, no further use can be made of it. If it is,
                call Start on it (cv StartRender). It can then be used, until such time
                as End is called on it. An in-line member function called Available can be
                used to determine its functionality at any time. There can only be one active
                GBrush in use at a time.

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

class GBrush : public ListItem
{
CC_DECLARE_MEMDUMP(GBrush);
public:
    GBrush();
    ~GBrush();
    BOOL Init( wxDC* Ref );
    void Start();
    void Stop();
    BOOL Available() { return Valid; }
    void GetLogBrush( ColourContext *, DocColour &, wxBrush* );
    void GetLogBrush( const COLORREF rgb, wxBrush* pBrush );

    static BOOL InitGBrush(BOOL);
    static void DeinitGBrush(void);
    static void NewBrushState();

    void SetSolidColours(BOOL UseSolid);
        // Enables/disables solid colour override (to remove dithering)

    static void ResetOnFatalError() {if (Current) Current->Stop();}

private:
    inline void GetLogBrushInternal( const COLORREF rgb, wxBrush* pBrush );

    BOOL Valid;                                         // TRUE if bitmap set up
    BOOL CanUse;                                        // TRUE if will work

    wxDC* ReferenceDC;                                  // reference device (for palette)

    RGBQUAD RGBList[256];                               // contains system palette (256 cols)

    static List BrushList;                              // list of all active brushes
    static GBrush *Current;                             // active brush

    BOOL UseSolidColours;                               // TRUE = solid, FALSE = dithered colours
};

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

>   BOOL GBrush::Available()

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/4/94
    Inputs:     -
    Outputs:    -
    Returns:    TRUE if can use it, FALSE if cannot.
    Purpose:    Determine whether this GBrush works or not. An in-line function.
    Errors:     -

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


#endif

---