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


/****************************************************************************
** $Id: qpainter.h,v 2.0 1996/09/24 10:15:55 agulbra Exp $
**
** Definition of QPainter class
**
** Created : 940112
**
** Copyright (C) 1994-1996 by Troll Tech AS.  All rights reserved.
**
*****************************************************************************/

#ifndef QPAINTER_H
#define QPAINTER_H

#include "qpaintd.h"
#include "qcolor.h"
#include "qfontmet.h"
#include "qfontinf.h"
#include "qregion.h"
#include "qpen.h"
#include "qbrush.h"
#include "qpntarry.h"
#include "qwmatrix.h"


enum BGMode                                     // background mode
    { TransparentMode, OpaqueMode };

enum PaintUnit                                  // paint unit
    { PixelUnit, LoMetricUnit, HiMetricUnit, LoEnglishUnit, HiEnglishUnit,
      TwipsUnit };


class QPainter                                  // painter class
{
public:
    QPainter();
   ~QPainter();

    bool        begin( const QPaintDevice * );  // begin painting in device
    bool        end();                          // end painting
    QPaintDevice *device() const;

    static void redirect( QPaintDevice *pdev, QPaintDevice *replacement );

    bool        isActive() const;

    void        save();
    void        restore();

  // Drawing tools

    QFontMetrics fontMetrics()  const;
    QFontInfo    fontInfo()     const;

    const QFont &font()         const;
    void        setFont( const QFont & );
    const QPen &pen()           const;
    void        setPen( const QPen & );
    void        setPen( PenStyle );
    void        setPen( const QColor & );
    const QBrush &brush()       const;
    void        setBrush( const QBrush & );
    void        setBrush( BrushStyle );
    void        setBrush( const QColor & );

  // Drawing attributes/modes

    const QColor &backgroundColor() const;
    void        setBackgroundColor( const QColor & );
    BGMode      backgroundMode() const;
    void        setBackgroundMode( BGMode );
    RasterOp    rasterOp()      const;
    void        setRasterOp( RasterOp );
    const QPoint &brushOrigin() const;
    void        setBrushOrigin( int x, int y );
    void        setBrushOrigin( const QPoint & );

  // Scaling and transformations

//    PaintUnit unit()         const;           // get set painter unit
//    void      setUnit( PaintUnit );           // NOT IMPLEMENTED!!!

    void        setViewXForm( bool );           // set xform on/off
    bool        hasViewXForm() const;
    QRect       window()       const;           // get window
    void        setWindow( const QRect & );     // set window
    void        setWindow( int x, int y, int w, int h );
    QRect       viewport()   const;             // get viewport
    void        setViewport( const QRect & );   // set viewport
    void        setViewport( int x, int y, int w, int h );

    void        setWorldXForm( bool );          // set world xform on/off
    bool        hasWorldXForm() const;
    const QWMatrix &worldMatrix() const;        // get/set world xform matrix
    void        setWorldMatrix( const QWMatrix &, bool concat=FALSE );

    void        translate( float dx, float dy );
    void        scale( float sx, float sy );
    void        shear( float sh, float sv );
    void        rotate( float a );
    void        resetXForm();

    QPoint      xForm( const QPoint & ) const;  // map virtual -> device
    QRect       xForm( const QRect & )  const;
    QPointArray xForm( const QPointArray & ) const;
    QPoint      xFormDev( const QPoint & ) const; // map device -> virtual
    QRect       xFormDev( const QRect & )  const;
    QPointArray xFormDev( const QPointArray & ) const;

  // Clipping

    void        setClipping( bool );            // set clipping on/off
    bool        hasClipping() const;
    const QRegion &clipRegion() const;
    void        setClipRect( const QRect & );   // set clip rectangle
    void        setClipRect( int x, int y, int w, int h );
    void        setClipRegion( const QRegion &);// set clip region

  // Graphics drawing functions

    void        drawPoint( int x, int y );
    void        drawPoint( const QPoint & );
    void        moveTo( int x, int y );
    void        moveTo( const QPoint & );
    void        lineTo( int x, int y );
    void        lineTo( const QPoint & );
    void        drawLine( int x1, int y1, int x2, int y2 );
    void        drawLine( const QPoint &, const QPoint & );
    void        drawRect( int x, int y, int w, int h );
    void        drawRect( const QRect & );
    void        drawRoundRect( int x, int y, int w, int h, int xRnd, int yRnd);
    void        drawRoundRect( const QRect &, int, int );
    void        drawEllipse( int x, int y, int w, int h );
    void        drawEllipse( const QRect & );
    void        drawArc( int x, int y, int w, int h, int a, int alen );
    void        drawArc( const QRect &, int a, int alen );
    void        drawPie( int x, int y, int w, int h, int a, int alen );
    void        drawPie( const QRect &, int a, int alen );
    void        drawChord( int x, int y, int w, int h, int a, int alen );
    void        drawChord( const QRect &, int a, int alen );
    void        drawLineSegments( const QPointArray &,
                                  int index=0, int nlines=-1 );
    void        drawPolyline( const QPointArray &,
                              int index=0, int npoints=-1 );
    void        drawPolygon( const QPointArray &, bool winding=FALSE,
                             int index=0, int npoints=-1 );
    void        drawQuadBezier( const QPointArray &, int index=0 );
    void        drawPixmap( int x, int y, const QPixmap &,
                            int sx=0, int sy=0, int sw=-1, int sh=-1 );
    void        drawPixmap( const QPoint &, const QPixmap &,
                            const QRect &sr );
    void        drawPixmap( const QPoint &, const QPixmap & );
    void        drawPicture( const QPicture & );

    void        fillRect( int x, int y, int w, int h, const QBrush & );
    void        fillRect( const QRect &, const QBrush & );
    void        eraseRect( int x, int y, int w, int h );
    void        eraseRect( const QRect & );

  // Text drawing functions

    void        drawText( int x, int y, const char *str, int len = -1 );
    void        drawText( const QPoint &, const char *str, int len = -1 );
    void        drawText( int x, int y, int w, int h, int flags,
                          const char *str, int len = -1, QRect *br=0,
                          char **internal=0 );
    void        drawText( const QRect &, int flags,
                          const char *str, int len = -1, QRect *br=0,
                          char **internal=0 );

  // Text drawing functions

    QRect       boundingRect( int x, int y, int w, int h, int flags,
                              const char *str, int len = -1, char **intern=0 );
    QRect       boundingRect( const QRect &, int flags,
                              const char *str, int len = -1, char **intern=0 );

    int         tabStops() const;
    void        setTabStops( int );
    int        *tabArray() const;
    void        setTabArray( int * );

    HANDLE      handle() const;

    static void initialize();
    static void cleanup();

private:
    void        drawPolyInternal( const QPointArray & );
    void        updateFont();
    void        updatePen();
    void        updateBrush();
    void        updateXForm();
    void        updateInvXForm();
    void        map( int, int, int *rx, int *ry ) const;
    void        map( int, int, int, int, int *, int *, int *, int * ) const;
    void        mapInv( int, int, int *, int * ) const;
    void        mapInv( int, int, int, int, int *, int *, int *, int * ) const;

    enum { IsActive=0x01, ExtDev=0x02, IsStartingUp=0x04, NoCache=0x08,
           VxF=0x10, WxF=0x20, ClipOn=0x40, SafePolygon=0x80, MonoDev=0x100,
           DirtyFont=0x200, DirtyPen=0x400, DirtyBrush=0x800,
           RGBColor=0x1000, FontMet=0x2000, FontInf=0x4000 };
    ushort      flags;
    bool        testf( ushort b ) const { return (flags&b)!=0; }
    void        setf( ushort b )        { flags |= b; }
    void        setf( ushort b, bool v );
    void        clearf( ushort b )      { flags &= (ushort)(~b); }

    QPaintDevice *pdev;
    QColor      bg_col;
    uchar       bg_mode;
    uchar       rop;
    uchar       pu;
    QPoint      bro;
    QFont       cfont;
    QPen        cpen;
    QBrush      cbrush;
    QRegion     crgn;
    int         tabstops;
    int        *tabarray;
    int         tabarraylen;
    QCOORD      wx, wy, ww, wh;
    QCOORD      vx, vy, vw, vh;
    QWMatrix    wxmat;
    int         wm11, wm12, wm21, wm22, wdx, wdy;
    int         im11, im12, im21, im22, idx, idy;
    int         txop;
    bool        txinv;
    void       *penRef;                         // pen cache ref
    void       *brushRef;                       // brush cache ref
    void       *ps_stack;
    void        killPStack();

protected:
#if defined(_WS_WIN_)
    HDC         hdc;                            // device context
    HANDLE      hpen;                           // current pen
    HANDLE      hbrush;                         // current brush
    HANDLE      hbrushbm;                       // current brush bitmap
    uint        pixmapBrush     : 1;
    uint        nocolBrush      : 1;
    uint        xfFont          : 1;
    void       *tm;
    void        nativeXForm( bool );
#elif defined(_WS_PM_)
    HPS         hps;                            // presentation space
    int         dh;                             // device height
    long        lctrl;                          // outline/fill control
    void        updateCtrl();                   // update lctrl
#elif defined(_WS_X11_)
    Display    *dpy;                            // current display
    WId         hd;                             // handle to drawable
    GC          gc;                             // graphics context (standard)
    GC          gc_brush;                       // graphics contect for brush
    QPoint      curPt;                          // current point
#endif
    friend class QFontMetrics;
    friend class QFontInfo;

private:        // Disabled copy constructor and operator=
    QPainter( const QPainter & ) {}
    QPainter &operator=( const QPainter & ) { return *this; }
};


/*****************************************************************************
  QPainter member functions
 *****************************************************************************/

inline QPaintDevice *QPainter::device() const
{
    return pdev;
}

inline bool QPainter::isActive() const
{
    return testf(IsActive);
}

inline QFontMetrics QPainter::fontMetrics() const
{
    return QFontMetrics(this);
}

inline QFontInfo QPainter::fontInfo() const
{
    return QFontInfo(this);
}

inline const QFont &QPainter::font() const
{
    return cfont;
}

inline const QPen &QPainter::pen() const
{
    return cpen;
}

inline const QBrush &QPainter::brush() const
{
    return cbrush;
}

/*
inline PaintUnit QPainter::unit() const
{
    return (PaintUnit)pu;
}
*/

inline const QColor &QPainter::backgroundColor() const
{
    return bg_col;
}

inline BGMode QPainter::backgroundMode() const
{
    return (BGMode)bg_mode;
}

inline RasterOp QPainter::rasterOp() const
{
    return (RasterOp)rop;
}

inline const QPoint &QPainter::brushOrigin() const
{
    return bro;
}

inline bool QPainter::hasViewXForm() const
{
    return testf(VxF);
}

inline bool QPainter::hasWorldXForm() const
{
    return testf(WxF);
}

inline bool QPainter::hasClipping() const
{
    return testf(ClipOn);
}

inline const QRegion &QPainter::clipRegion() const
{
    return crgn;
}

inline int QPainter::tabStops() const
{
    return tabstops;
}

inline int *QPainter::tabArray() const
{
    return tabarray;
}

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


inline void QPainter::setBrushOrigin( const QPoint &p )
{
    setBrushOrigin( p.x(), p.y() );
}

inline void QPainter::setWindow( const QRect &r )
{
    setWindow( r.x(), r.y(), r.width(), r.height() );
}

inline void QPainter::setViewport( const QRect &r )
{
    setViewport( r.x(), r.y(), r.width(), r.height() );
}

inline void QPainter::setClipRect( int x, int y, int w, int h )
{
    setClipRect( QRect(x,y,w,h) );
}

inline void QPainter::drawPoint( const QPoint &p )
{
    drawPoint( p.x(), p.y() );
}

inline void QPainter::moveTo( const QPoint &p )
{
    moveTo( p.x(), p.y() );
}

inline void QPainter::lineTo( const QPoint &p )
{
    lineTo( p.x(), p.y() );
}

inline void QPainter::drawLine( const QPoint &p1, const QPoint &p2 )
{
    drawLine( p1.x(), p1.y(), p2.x(), p2.y() );
}

inline void QPainter::drawRect( const QRect &r )
{
    drawRect( r.x(), r.y(), r.width(), r.height() );
}

inline void QPainter::drawRoundRect( const QRect &r, int xRnd, int yRnd )
{
    drawRoundRect( r.x(), r.y(), r.width(), r.height(), xRnd, yRnd );
}

inline void QPainter::drawEllipse( const QRect &r )
{
    drawEllipse( r.x(), r.y(), r.width(), r.height() );
}

inline void QPainter::drawArc( const QRect &r, int a, int alen )
{
    drawArc( r.x(), r.y(), r.width(), r.height(), a, alen );
}

inline void QPainter::drawPie( const QRect &r, int a, int alen )
{
    drawPie( r.x(), r.y(), r.width(), r.height(), a, alen );
}

inline void QPainter::drawChord( const QRect &r, int a, int alen )
{
    drawChord( r.x(), r.y(), r.width(), r.height(), a, alen );
}

inline void QPainter::drawPixmap( const QPoint &p, const QPixmap &pm,
                                  const QRect &sr )
{
    drawPixmap( p.x(), p.y(), pm, sr.x(), sr.y(), sr.width(), sr.height() );
}

inline void QPainter::fillRect( const QRect &r, const QBrush &brush )
{
    fillRect( r.x(), r.y(), r.width(), r.height(), brush );
}

inline void QPainter::eraseRect( int x, int y, int w, int h )
{
    fillRect( x, y, w, h, backgroundColor() );
}

inline void QPainter::eraseRect( const QRect &r )
{
    fillRect( r.x(), r.y(), r.width(), r.height(), backgroundColor() );
}

inline void QPainter::drawText( const QPoint &p, const char *s, int len )
{
    drawText( p.x(), p.y(), s, len );
}

inline void QPainter::drawText( const QRect &r, int tf,
                                const char *str, int len, QRect *br, char **i )
{
    drawText( r.x(), r.y(), r.width(), r.height(), tf, str, len, br, i );
}

inline QRect QPainter::boundingRect( const QRect &r, int tf,
                                     const char *str, int len, char **i )
{
    return boundingRect( r.x(), r.y(), r.width(), r.height(), tf, str, len,
                         i );
}



#endif // QPAINTER_H


Generated at 16:51, 1996/09/24 for Qt version 1.0 by the webmaster at Troll Tech