qtcanvas.cpp File Reference

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

Include dependency graph for qtcanvas.cpp:

Go to the source code of this file.

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)   BRESINCRPGON(bres.d, bres.minor, bres.m, bres.m1, bres.incr1, bres.incr2)
#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; \
            } \
        } \
    }

Definition at line 5777 of file qtcanvas.cpp.

BRESINCRPGONSTRUCT

#define BRESINCRPGONSTRUCT

(

bres

)

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

Definition at line 5820 of file qtcanvas.cpp.

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; \
            } \
        } \
    }

Definition at line 5754 of file qtcanvas.cpp.

BRESINITPGONSTRUCT

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

Value:

    BRESINITPGON(dmaj, min1, min2, bres.minor, bres.d, \
                 bres.m, bres.m1, bres.incr1, bres.incr2)

Definition at line 5816 of file qtcanvas.cpp.

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; \
        } \
    }

Definition at line 5906 of file qtcanvas.cpp.

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; \
        } \
    }

Definition at line 5883 of file qtcanvas.cpp.

MAXINT

#define MAXINT   0x7fffffff

Definition at line 5968 of file qtcanvas.cpp.

MININT

#define MININT   -MAXINT

Definition at line 5969 of file qtcanvas.cpp.

NUMPTSTOBUFFER

#define NUMPTSTOBUFFER   200

Definition at line 5868 of file qtcanvas.cpp.

SLLSPERBLOCK

#define SLLSPERBLOCK   25

Definition at line 5856 of file qtcanvas.cpp.

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
	)

Definition at line 2239 of file qtcanvas.cpp.

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