QXRenderTessellator Class Reference

Inheritance diagram for QXRenderTessellator:

Public Functions
void	addTrap (const Trapezoid &trap)
void	done ()
	QXRenderTessellator ()
QRect	tessellate (const QPointF *points, int nPoints, bool winding)
	~QXRenderTessellator ()
Public Functions inherited from QTessellator
	QTessellator ()
void	setWinding (bool w)
QRectF	tessellate (const QPointF *points, int nPoints)
void	tessellateConvex (const QPointF *points, int nPoints)
void	tessellateRect (const QPointF &a, const QPointF &b, qreal width)
virtual	~QTessellator ()

Public Variables
int	allocated
int	size
XTrapezoid *	traps

Detailed Description

Definition at line 257 of file qpaintengine_x11.cpp.

Constructors and Destructors

QXRenderTessellator()

QXRenderTessellator::QXRenderTessellator ( )

inline

Definition at line 260 of file qpaintengine_x11.cpp.

Referenced by QX11PaintEnginePrivate::init().

: traps(0), allocated(0), size(0) {}

~QXRenderTessellator()

QXRenderTessellator::~QXRenderTessellator ( )

inline

Definition at line 261 of file qpaintengine_x11.cpp.

{ free(traps); }

Functions

addTrap()

void QXRenderTessellator::addTrap ( const Trapezoid &  trap )

virtual

Implements QTessellator.

Definition at line 280 of file qpaintengine_x11.cpp.

{
    if (size == allocated) {
        allocated = qMax(2*allocated, 64);
        traps = q_check_ptr((XTrapezoid *)realloc(traps, allocated * sizeof(XTrapezoid)));
    }
    traps[size].top = Q27Dot5ToXFixed(trap.top);
    traps[size].bottom = Q27Dot5ToXFixed(trap.bottom);
    traps[size].left.p1.x = Q27Dot5ToXFixed(trap.topLeft->x);
    traps[size].left.p1.y = Q27Dot5ToXFixed(trap.topLeft->y);
    traps[size].left.p2.x = Q27Dot5ToXFixed(trap.bottomLeft->x);
    traps[size].left.p2.y = Q27Dot5ToXFixed(trap.bottomLeft->y);
    traps[size].right.p1.x = Q27Dot5ToXFixed(trap.topRight->x);
    traps[size].right.p1.y = Q27Dot5ToXFixed(trap.topRight->y);
    traps[size].right.p2.x = Q27Dot5ToXFixed(trap.bottomRight->x);
    traps[size].right.p2.y = Q27Dot5ToXFixed(trap.bottomRight->y);
    ++size;
}

done()

void QXRenderTessellator::done ( )

inline

Definition at line 271 of file qpaintengine_x11.cpp.

                {
        if (allocated > 64) {
            free(traps);
            traps = 0;
            allocated = 0;
        }
    }

tessellate()

QRect QXRenderTessellator::tessellate ( const QPointF *  points, int  nPoints, bool  winding  )

inline

Definition at line 266 of file qpaintengine_x11.cpp.

                                                                       {
        size = 0;
        setWinding(winding);
        return QTessellator::tessellate(points, nPoints).toRect();
    }

Properties

allocated

int QXRenderTessellator::allocated

Definition at line 263 of file qpaintengine_x11.cpp.

Referenced by addTrap().

size

int QXRenderTessellator::size

Definition at line 264 of file qpaintengine_x11.cpp.

Referenced by addTrap().

traps

XTrapezoid* QXRenderTessellator::traps

Definition at line 262 of file qpaintengine_x11.cpp.

Referenced by addTrap(), and ~QXRenderTessellator().

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The documentation for this class was generated from the following file:

• /src/gui/painting/qpaintengine_x11.cpp