Classes | Macros | Typedefs | Functions
qtcanvas.cpp File Reference
#include "qtcanvas.h"
#include <stdlib.h>
#include <QApplication>
#include <QBitmap>
#include <QDesktopWidget>
#include <QImage>
#include <QPainter>
#include <QTimer>
#include <qalgorithms.h>
#include <qevent.h>
#include <qhash.h>
#include <qpainterpath.h>
#include <qset.h>
#include <QDebug>

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

bool qt_testCollision (const QtCanvasSprite *s1, const QtCanvasSprite *s2)
 

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 qtcanvas.cpp:5970

◆ 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 qtcanvas.cpp:5942

◆ 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; \
} \
}

◆ 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; \
} \
}

◆ MAXINT

#define MAXINT   0x7fffffff

◆ MININT

#define MININT   -MAXINT

◆ NUMPTSTOBUFFER

#define NUMPTSTOBUFFER   200

◆ 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

◆ qt_testCollision()

bool qt_testCollision ( const QtCanvasSprite * s1,
const QtCanvasSprite * s2 )