QTessellatorPrivate Class Reference

Collaboration diagram for QTessellatorPrivate:

Classes
struct	Edge
class	EdgeSorter
struct	Intersection
struct	IntersectionLink
class	Scanline
struct	Vertex
struct	Vertices

Public Types
typedef QMap< Intersection, IntersectionLink >	Intersections

Public Member Functions
	QTessellatorPrivate ()
QRectF	collectAndSortVertices (const QPointF *points, int *maxActiveEdges)
void	cancelCoincidingEdges ()
void	emitEdges (QTessellator *tessellator)
void	processIntersections ()
void	removeEdges ()
void	addEdges ()
void	addIntersections ()

Public Attributes
Vertices	vertices
Intersections	intersections
Scanline	scanline
bool	winding
Q27Dot5	y
int	currentVertex

Detailed Description

Definition at line 38 of file qtessellator.cpp.

Member Typedef Documentation

Intersections

typedef QMap<Intersection, IntersectionLink> QTessellatorPrivate::Intersections

Definition at line 73 of file qtessellator.cpp.

Constructor & Destructor Documentation

QTessellatorPrivate()

QTessellatorPrivate::QTessellatorPrivate ( )

inline

Definition at line 42 of file qtessellator.cpp.

Referenced by QTessellator::QTessellator().

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Member Function Documentation

addEdges()

void QTessellatorPrivate::addEdges

(

)

Definition at line 917 of file qtessellator.cpp.

References currentVertex, e, QTessellatorPrivate::Scanline::edges, QTessellatorPrivate::Scanline::findEdgePosition(), QTessellatorPrivate::Scanline::insert(), LineAfterEnds, LineAfterHorizontal, LineAfterStarts, LineBeforeEnds, LineBeforeStarts, QTessellatorPrivate::Edge::mark, mark_clever, QTessellatorPrivate::Scanline::markEdges(), QTessellatorPrivate::Vertices::next(), next, QTessellatorPrivate::Vertices::nPoints, pos, QTessellatorPrivate::Vertices::position(), QTessellatorPrivate::Vertices::prevPos(), Q_ASSERT, QDEBUG, qSwap(), scanline, QTessellatorPrivate::Scanline::size, QTessellatorPrivate::Vertices::sorted, and vertices.

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addIntersections()

void QTessellatorPrivate::addIntersections

(

)

Definition at line 1134 of file qtessellator.cpp.

References QTessellatorPrivate::Scanline::clearMarks(), QMap< Key, T >::constBegin(), e, QTessellatorPrivate::Scanline::edges, i, QTessellatorPrivate::Edge::intersect_left, QTessellatorPrivate::Edge::intersect_right, intersections, QDEBUG, scanline, and QTessellatorPrivate::Scanline::size.

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cancelCoincidingEdges()

void QTessellatorPrivate::cancelCoincidingEdges

(

)

Definition at line 689 of file qtessellator.cpp.

References QCoincidingEdge::before, cancelEdges(), QCoincidingEdge::end, i, j, LineAfterHorizontal, LineAfterStarts, LineBeforeHorizontal, LineBeforeStarts, QTessellatorPrivate::Vertices::next(), QTessellatorPrivate::Vertices::nPoints, QTessellatorPrivate::Vertices::prev(), qMax(), QT_WARNING_DISABLE_CLANG, QT_WARNING_POP, QT_WARNING_PUSH, QTessellatorPrivate::Vertices::sorted, QCoincidingEdge::start, QCoincidingEdge::used, vertices, winding, QTessellator::Vertex::x, and QTessellator::Vertex::y.

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collectAndSortVertices()

QRectF QTessellatorPrivate::collectAndSortVertices	(	const QPointF *	points,
		int *	maxActiveEdges
	)

Definition at line 570 of file qtessellator.cpp.

References compareVertex(), QTessellatorPrivate::Vertex::flags, FloatToQ27Dot5, i, j, LineAfterEnds, LineAfterHorizontal, LineAfterStarts, LineBeforeEnds, LineBeforeHorizontal, LineBeforeStarts, QTessellatorPrivate::Vertices::nPoints, QDEBUG, qMax(), qMin(), QTessellatorPrivate::Vertices::sorted, QTessellatorPrivate::Vertices::storage, vertices, and y.

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emitEdges()

void QTessellatorPrivate::emitEdges

(

QTessellator *

tessellator

)

Definition at line 755 of file qtessellator.cpp.

References QTessellator::addTrap(), emit_clever, fillTrapezoid(), i, QTessellatorPrivate::Edge::mark, QTessellatorPrivate::Scanline::old, QTessellatorPrivate::Scanline::old_size, qMax(), scanline, vertices, QTessellatorPrivate::Edge::winding, winding, y, QTessellatorPrivate::Edge::y_left, and QTessellatorPrivate::Edge::y_right.

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processIntersections()

void QTessellatorPrivate::processIntersections

(

)

Definition at line 817 of file qtessellator.cpp.

References QMap< Key, T >::begin(), QTessellatorPrivate::Edge::edge, QTessellatorPrivate::Scanline::edges, QMap< Key, T >::end(), QMap< Key, T >::find(), QTessellatorPrivate::Scanline::findEdge(), i, QTessellatorPrivate::Edge::intersect_left, QTessellatorPrivate::Edge::intersect_right, intersections, QMap< Key, T >::isEmpty(), it, QTessellatorPrivate::Edge::mark, next, QTessellatorPrivate::Edge::positionAt(), Q_ASSERT, QDEBUG, qMax(), qMin(), QMap< Key, T >::remove(), scanline, QTessellatorPrivate::Scanline::size, and y.

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removeEdges()

void QTessellatorPrivate::removeEdges

(

)

Definition at line 882 of file qtessellator.cpp.

References currentVertex, QTessellatorPrivate::Scanline::edges, QTessellatorPrivate::Scanline::findEdge(), QTessellatorPrivate::Edge::intersect_left, QTessellatorPrivate::Edge::intersect_right, LineAfterEnds, LineBeforeEnds, QTessellatorPrivate::Edge::mark, QTessellatorPrivate::Vertices::nPoints, pos, QTessellatorPrivate::Vertices::position(), QTessellatorPrivate::Vertices::prevPos(), QDEBUG, QTessellatorPrivate::Scanline::removeAt(), scanline, QTessellatorPrivate::Scanline::size, QTessellatorPrivate::Vertices::sorted, and vertices.

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Member Data Documentation

currentVertex

int QTessellatorPrivate::currentVertex

Definition at line 197 of file qtessellator.cpp.

Referenced by addEdges(), and removeEdges().

intersections

Intersections QTessellatorPrivate::intersections

Definition at line 193 of file qtessellator.cpp.

Referenced by addIntersections(), and processIntersections().

scanline

Scanline QTessellatorPrivate::scanline

Definition at line 194 of file qtessellator.cpp.

Referenced by addEdges(), addIntersections(), emitEdges(), processIntersections(), and removeEdges().

vertices

Vertices QTessellatorPrivate::vertices

Definition at line 192 of file qtessellator.cpp.

Referenced by QTessellatorPrivate::Edge::Edge(), addEdges(), cancelCoincidingEdges(), collectAndSortVertices(), emitEdges(), fillTrapezoid(), and removeEdges().

winding

bool QTessellatorPrivate::winding

Definition at line 195 of file qtessellator.cpp.

Referenced by cancelCoincidingEdges(), and emitEdges().

y

Q27Dot5 QTessellatorPrivate::y

Definition at line 196 of file qtessellator.cpp.

Referenced by collectAndSortVertices(), emitEdges(), processIntersections(), and QTessellator::tessellateConvex().

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

• qtbase/src/plugins/platforms/xcb/nativepainting/qtessellator.cpp