#include "qtcanvas.h"
#include <QtGui/QApplication>
#include <QtGui/QBitmap>
#include <QtGui/QDesktopWidget>
#include <QtGui/QImage>
#include <QtGui/QPainter>
#include <QtCore/QTimer>
#include <QtCore/qhash.h>
#include <QtCore/qset.h>
#include <QtCore/qalgorithms.h>
#include <QtGui/qevent.h>
#include <QtGui/qpainterpath.h>
#include <stdlib.h>

Classes
struct	_EdgeTableEntry
struct	_ScanLineList
struct	_ScanLineListBlock
struct	BRESINFO
struct	DDXPointRec
struct	EdgeTable
class	QPolygonalProcessor
class	QtCanvasChunk
class	QtCanvasClusterizer
class	QtCanvasData
class	QtCanvasItemExtra
class	QtCanvasItemLess
class	QtCanvasPolygonScanner
class	QtCanvasViewData
class	QtCanvasWidget
class	QtPolygonScanner

Macros
#define	BRESINCRPGON(d, minval, m, m1, incr1, incr2)
#define	BRESINCRPGONSTRUCT(bres)
#define	BRESINITPGON(dy, x1, x2, xStart, d, m, m1, incr1, incr2)
#define	BRESINITPGONSTRUCT(dmaj, min1, min2, bres)
#define	EVALUATEEDGEEVENODD(pAET, pPrevAET, y)
#define	EVALUATEEDGEWINDING(pAET, pPrevAET, y, fixWAET)
#define	MAXINT 0x7fffffff
#define	MININT -MAXINT
#define	NUMPTSTOBUFFER 200
#define	SLLSPERBLOCK 25

Typedefs
typedef struct DDXPointRec *	DDXPointPtr
typedef struct _EdgeTableEntry	EdgeTableEntry
typedef struct _ScanLineList	ScanLineList
typedef struct _ScanLineListBlock	ScanLineListBlock

Functions
static bool	collision_double_dispatch (const QtCanvasSprite s1, const QtCanvasPolygonalItem p1, const QtCanvasRectangle r1, const QtCanvasEllipse e1, const QtCanvasText t1, const QtCanvasSprite s2, const QtCanvasPolygonalItem p2, const QtCanvasRectangle r2, const QtCanvasEllipse e2, const QtCanvasText t2)
static const QBrush &	defaultPolygonBrush ()
static const QPen &	defaultPolygonPen ()
static int	gcd (int a, int b)
static void	include (QRect &r, const QRect &rect)
static void	micomputeWAET (EdgeTableEntry *AET)
static bool	miCreateETandAET (int count, DDXPointPtr pts, EdgeTable ET, EdgeTableEntry AET, EdgeTableEntry pETEs, ScanLineListBlock pSLLBlock)
static void	miFreeStorage (ScanLineListBlock *pSLLBlock)
static bool	miInsertEdgeInET (EdgeTable ET, EdgeTableEntry ETE, int scanline, ScanLineListBlock *SLLBlock, int iSLLBlock)
static int	miInsertionSort (EdgeTableEntry *AET)
static void	miloadAET (EdgeTableEntry AET, EdgeTableEntry ETEs)
bool	qt_testCollision (const QtCanvasSprite s1, const QtCanvasSprite s2)
static int	scm (int a, int b)

Macro Definition Documentation

◆ BRESINCRPGON

#define BRESINCRPGON	(	d,
		minval,
		m,
		m1,
		incr1,
		incr2 )

Value:

    { \
    if (m1 > 0) { \
        if (d > 0) { \
            minval += m1; \
            d += incr1; \
        } \
        else { \
            minval += m; \
            d += incr2; \
        } \
    } else {\
        if (d >= 0) { \
            minval += m1; \
            d += incr1; \
        } \
        else { \
            minval += m; \
            d += incr2; \
        } \
    } \
}

◆ BRESINCRPGONSTRUCT

#define BRESINCRPGONSTRUCT ( bres )

Value:

BRESINCRPGON(bres.d, bres.minor, bres.m, bres.m1, bres.incr1, bres.incr2)

BRESINCRPGON

#define BRESINCRPGON(d, minval, m, m1, incr1, incr2)

Definition canvas_typed/qtcanvas.cpp:5042

◆ BRESINITPGON

#define BRESINITPGON	(	dy,
		x1,
		x2,
		xStart,
		d,
		m,
		m1,
		incr1,
		incr2 )

Value:

    { \
    int dx;      /* local storage */ \
\
    /* \
     *  if the edge is horizontal, then it is ignored \
     *  and assumed not to be processed.  Otherwise, do this stuff. \
     */ \
    if ((dy) != 0) { \
        xStart = (x1); \
        dx = (x2) - xStart; \
        if (dx < 0) { \
            m = dx / (dy); \
            m1 = m - 1; \
            incr1 = -2 * dx + 2 * (dy) * m1; \
            incr2 = -2 * dx + 2 * (dy) * m; \
            d = 2 * m * (dy) - 2 * dx - 2 * (dy); \
        } else { \
            m = dx / (dy); \
            m1 = m + 1; \
            incr1 = 2 * dx - 2 * (dy) * m1; \
            incr2 = 2 * dx - 2 * (dy) * m; \
            d = -2 * m * (dy) + 2 * dx; \
        } \
    } \
}

◆ BRESINITPGONSTRUCT

#define BRESINITPGONSTRUCT	(	dmaj,
		min1,
		min2,
		bres )

Value:

BRESINITPGON(dmaj, min1, min2, bres.minor, bres.d, \

bres.m, bres.m1, bres.incr1, bres.incr2)

BRESINITPGON

#define BRESINITPGON(dy, x1, x2, xStart, d, m, m1, incr1, incr2)

Definition canvas_typed/qtcanvas.cpp:5019

◆ EVALUATEEDGEEVENODD

#define EVALUATEEDGEEVENODD	(	pAET,
		pPrevAET,
		y )

Value:

   { \
   if (pAET->ymax == y) {          /* leaving this edge */ \
      pPrevAET->next = pAET->next; \
      pAET = pPrevAET->next; \
      if (pAET) \
         pAET->back = pPrevAET; \
   } \
   else { \
      BRESINCRPGONSTRUCT(pAET->bres) \
      pPrevAET = pAET; \
      pAET = pAET->next; \
   } \
}

Referenced by QtPolygonScanner::scan().

◆ EVALUATEEDGEWINDING

#define EVALUATEEDGEWINDING	(	pAET,
		pPrevAET,
		y,
		fixWAET )

Value:

   { \
   if (pAET->ymax == y) {          /* leaving this edge */ \
      pPrevAET->next = pAET->next; \
      pAET = pPrevAET->next; \
      fixWAET = 1; \
      if (pAET) \
         pAET->back = pPrevAET; \
   } \
   else { \
      BRESINCRPGONSTRUCT(pAET->bres); \
      pPrevAET = pAET; \
      pAET = pAET->next; \
   } \
}

Referenced by QtPolygonScanner::scan().

◆ MAXINT

#define MAXINT 0x7fffffff

◆ MININT

#define MININT -MAXINT

◆ NUMPTSTOBUFFER

#define NUMPTSTOBUFFER 200

Referenced by QtPolygonScanner::scan().

◆ SLLSPERBLOCK

#define SLLSPERBLOCK 25

Typedef Documentation

◆ DDXPointPtr

typedef struct DDXPointRec * DDXPointPtr

◆ EdgeTableEntry

typedef struct _EdgeTableEntry EdgeTableEntry

◆ ScanLineList

typedef struct _ScanLineList ScanLineList

◆ ScanLineListBlock

typedef struct _ScanLineListBlock ScanLineListBlock

Function Documentation

◆ collision_double_dispatch()

bool collision_double_dispatch	(	const QtCanvasSprite *	s1,
		const QtCanvasPolygonalItem *	p1,
		const QtCanvasRectangle *	r1,
		const QtCanvasEllipse *	e1,
		const QtCanvasText *	t1,
		const QtCanvasSprite *	s2,
		const QtCanvasPolygonalItem *	p2,
		const QtCanvasRectangle *	r2,
		const QtCanvasEllipse *	e2,
		const QtCanvasText *	t2 )