Qt Toolkit - qpaintdevice.h include file

# qpaintdevice.h

This is the verbatim text of the qpaintdevice.h include file. It is is provided only for illustration; the copyright remains with Troll Tech.

    /****************************************************************************
    ** $Id: qpaintdevice.h,v 2.8.2.5 1999/01/18 11:22:37 aavit Exp $
    **
    ** Definition of QPaintDevice class
    **
    ** Created : 940721
    **
    ** Copyright (C) 1992-1999 Troll Tech AS.  All rights reserved.
    **
    ** This file is part of Qt Free Edition, version 1.45.
    **
    ** See the file LICENSE included in the distribution for the usage
    ** and distribution terms, or http://www.troll.no/free-license.html.
    **
    ** IMPORTANT NOTE: You may NOT copy this file or any part of it into
    ** your own programs or libraries.
    **
    ** Please see http://www.troll.no/pricing.html for information about
    ** Qt Professional Edition, which is this same library but with a
    ** license which allows creation of commercial/proprietary software.
    **
    *****************************************************************************/

    #ifndef QPAINTDEVICE_H
    #define QPAINTDEVICE_H

    #ifndef QT_H
    #include "qwindowdefs.h"
    #include "qrect.h"
    #endif // QT_H

    // Painter device types (is-A)

    #define PDT_UNDEF       0x00
    #define PDT_WIDGET      0x01
    #define PDT_PIXMAP      0x02
    #define PDT_PRINTER     0x03
    #define PDT_PICTURE     0x04
    #define PDT_SYSTEM      0x05
    #define PDT_MASK        0x0f

    // Painter device flags

    #define PDF_EXTDEV      0x10
    #define PDF_PAINTACTIVE 0x20
    #define PDF_OWNDEPTH    0x100

    // Painter device command param (defined in qpaintdevicedefs.h)

    union QPDevCmdParam;

    class Q_EXPORT QPaintDevice                             // device for QPainter
    {
    public:
        virtual ~QPaintDevice();

        int      devType()        const;
        bool     isExtDev()       const;
        bool     paintingActive() const;

        // Windows:   get device context
        // OS/2 PM:   get presentation space
        // X-Windows: get drawable
        HANDLE   handle()  const;

    #if !defined(_WS_X11_)
    #define Display void
    #endif
        Display *x11Display() const;                // X11 only

    #if defined(_WS_X11_)
        static Display *x__Display();
        static int      x11Screen();
        static int      x11Depth();
        static int      x11Cells();
        static HANDLE   x11Colormap();
        static bool     x11DefaultColormap();
        static void    *x11Visual();
        static bool     x11DefaultVisual();
    #endif

    protected:
        QPaintDevice( uint devflags );

    #if defined(_WS_WIN_)
        HDC      hdc;                               // device context
    #elif defined(_WS_PM_)
        HPS      hps;                               // presentation space
    #elif defined(_WS_X11_)
        static Display *dpy;                        // display (common to all)
        HANDLE   hd;                                // handle to drawable
    #endif

        virtual bool cmd( int, QPainter *, QPDevCmdParam * );
        virtual int  metric( int ) const;
        virtual int  fontMet( QFont *, int, const char * = 0, int = 0 ) const;
        virtual int  fontInf( QFont *, int ) const;

        uint     devFlags;                          // device flags

        friend class QColor;
        friend class QPainter;
        friend class QPaintDeviceMetrics;
        friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
                                     const QPaintDevice *,
                                     int, int, int, int, RasterOp, bool );

    #if defined(_WS_X11_)
    private:
        static Display *x_display;
        static int      x_screen;
        static int      x_depth;
        static int      x_cells;
        static HANDLE   x_colormap;
        static bool     x_defcmap;
        static void    *x_visual;
        static bool     x_defvisual;
    #endif

    private:        // Disabled copy constructor and operator=
    #if defined(Q_DISABLE_COPY)
        QPaintDevice( const QPaintDevice & );
        QPaintDevice &operator=( const QPaintDevice & );
    #endif
    };

    Q_EXPORT
    void bitBlt( QPaintDevice *dst, int dx, int dy,
                 const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
                 RasterOp = CopyROP, bool ignoreMask=FALSE );

    Q_EXPORT
    void bitBlt( QPaintDevice *dst, int dx, int dy,
                 const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1,
                 int conversion_flags=0 );

    /*****************************************************************************
      Inline functions
     *****************************************************************************/

    inline int QPaintDevice::devType() const
    { return devFlags & PDT_MASK; }

    inline bool QPaintDevice::isExtDev() const
    { return (devFlags & PDF_EXTDEV) != 0; }

    inline bool QPaintDevice::paintingActive() const
    { return (devFlags & PDF_PAINTACTIVE) != 0; }

    #if defined(_WS_WIN_)
    inline HANDLE   QPaintDevice::handle()  const { return hdc; }
    #elif defined(_WS_PM_)
    inline HANDLE   QPaintDevice::handle()  const { return hps; }
    #elif defined(_WS_X11_)
    inline HANDLE   QPaintDevice::handle()  const { return hd; }
    #endif

    #if defined(_WS_X11_)
    inline Display *QPaintDevice::x11Display() const { return dpy; }
    #else
    inline Display *QPaintDevice::x11Display() const { return 0; }
    #undef Display
    #endif

    #if defined(_WS_X11_)
    inline Display *QPaintDevice::x__Display()         { return x_display; }
    inline int      QPaintDevice::x11Screen()          { return x_screen; }
    inline int      QPaintDevice::x11Depth()           { return x_depth; }
    inline int      QPaintDevice::x11Cells()           { return x_cells; }
    inline HANDLE   QPaintDevice::x11Colormap()        { return x_colormap; }
    inline bool     QPaintDevice::x11DefaultColormap() { return x_defcmap; }
    inline void    *QPaintDevice::x11Visual()          { return x_visual; }
    inline bool     QPaintDevice::x11DefaultVisual()   { return x_defvisual; }
    #endif

    Q_EXPORT
    inline void bitBlt( QPaintDevice *dst, const QPoint &dp,
                        const QPaintDevice *src, const QRect &sr =QRect(0,0,-1,-1),
                        RasterOp rop=CopyROP, bool ignoreMask=FALSE )
    {
        bitBlt( dst, dp.x(), dp.y(), src, sr.x(), sr.y(), sr.width(), sr.height(),
                rop, ignoreMask );
    }

    #endif // QPAINTDEVICE_H