CopperSpice API
1.8.1

The QPainterPath class provides a container for painting operations, enabling graphical shapes to be constructed and reused. More...
Classes  
class  Element 
Specifies the position and type of a subpath More...  
Public Types  
enum  ElementType 
Public Methods  
QPainterPath ()  
QPainterPath (const QPainterPath &other)  
QPainterPath (const QPointF &startPoint)  
~QPainterPath ()  
void  addEllipse (const QPointF ¢er, qreal rx, qreal ry) 
void  addEllipse (const QRectF &rect) 
void  addEllipse (qreal x, qreal y, qreal width, qreal height) 
void  addPath (const QPainterPath &path) 
void  addPolygon (const QPolygonF &polygon) 
void  addRect (const QRectF &rect) 
void  addRect (qreal x, qreal y, qreal width, qreal height) 
void  addRegion (const QRegion ®ion) 
void  addRoundedRect (const QRectF &rect, qreal xRadius, qreal yRadius, Qt::SizeMode mode=Qt::AbsoluteSize) 
void  addRoundedRect (qreal x, qreal y, qreal width, qreal height, qreal xRadius, qreal yRadius, Qt::SizeMode mode=Qt::AbsoluteSize) 
void  addRoundRect (const QRectF &rect, int roundness) 
void  addRoundRect (const QRectF &rect, int xRound, int yRound) 
void  addRoundRect (qreal x, qreal y, qreal width, qreal height, int roundness) 
void  addRoundRect (qreal x, qreal y, qreal width, qreal height, int xRound, int yRound) 
void  addText (const QPointF &point, const QFont &font, const QString &text) 
void  addText (qreal x, qreal y, const QFont &font, const QString &text) 
qreal  angleAtPercent (qreal t) const 
void  arcMoveTo (const QRectF &rect, qreal angle) 
void  arcMoveTo (qreal x, qreal y, qreal width, qreal height, qreal angle) 
void  arcTo (const QRectF &rect, qreal startAngle, qreal arcLength) 
void  arcTo (qreal x, qreal y, qreal width, qreal height, qreal startAngle, qreal arcLength) 
QRectF  boundingRect () const 
void  closeSubpath () 
void  connectPath (const QPainterPath &path) 
bool  contains (const QPainterPath &other) const 
bool  contains (const QPointF &point) const 
bool  contains (const QRectF &rect) const 
QRectF  controlPointRect () const 
void  cubicTo (const QPointF &point1, const QPointF &point2, const QPointF &point3) 
void  cubicTo (qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3) 
QPointF  currentPosition () const 
QPainterPath::Element  elementAt (int index) const 
int  elementCount () const 
Qt::FillRule  fillRule () const 
QPainterPath  intersected (const QPainterPath &other) const 
bool  intersects (const QPainterPath &other) const 
bool  intersects (const QRectF &rect) const 
bool  isEmpty () const 
qreal  length () const 
void  lineTo (const QPointF &endPoint) 
void  lineTo (qreal x, qreal y) 
void  moveTo (const QPointF &point) 
void  moveTo (qreal x, qreal y) 
bool  operator!= (const QPainterPath &other) const 
QPainterPath  operator& (const QPainterPath &other) const 
QPainterPath &  operator&= (const QPainterPath &other) 
QPainterPath  operator+ (const QPainterPath &other) const 
QPainterPath &  operator+= (const QPainterPath &other) 
QPainterPath  operator (const QPainterPath &other) const 
QPainterPath &  operator= (const QPainterPath &other) 
QPainterPath &  operator= (const QPainterPath &other) 
QPainterPath &  operator= (QPainterPath &&other) 
bool  operator== (const QPainterPath &other) const 
QPainterPath  operator (const QPainterPath &other) const 
QPainterPath &  operator= (const QPainterPath &other) 
qreal  percentAtLength (qreal len) const 
QPointF  pointAtPercent (qreal t) const 
void  quadTo (const QPointF &point1, const QPointF &point2) 
void  quadTo (qreal x1, qreal y1, qreal x2, qreal y2) 
void  setElementPositionAt (int index, qreal x, qreal y) 
void  setFillRule (Qt::FillRule fillRule) 
QPainterPath  simplified () const 
qreal  slopeAtPercent (qreal t) const 
QPainterPath  subtracted (const QPainterPath &other) const 
QPainterPath  subtractedInverted (const QPainterPath &other) const 
void  swap (QPainterPath &other) 
QPolygonF  toFillPolygon (const QMatrix &matrix=QMatrix ()) const 
QPolygonF  toFillPolygon (const QTransform &matrix) const 
QList< QPolygonF >  toFillPolygons (const QMatrix &matrix=QMatrix ()) const 
QList< QPolygonF >  toFillPolygons (const QTransform &matrix) const 
QPainterPath  toReversed () const 
QList< QPolygonF >  toSubpathPolygons (const QMatrix &matrix=QMatrix ()) const 
QList< QPolygonF >  toSubpathPolygons (const QTransform &matrix) const 
void  translate (const QPointF &offset) 
void  translate (qreal dx, qreal dy) 
QPainterPath  translated (const QPointF &offset) const 
QPainterPath  translated (qreal dx, qreal dy) const 
QPainterPath  united (const QPainterPath &other) const 
Friends  
QDataStream &  operator<< (QDataStream &stream, const QPainterPath &path) 
QDataStream &  operator>> (QDataStream &stream, QPainterPath &path) 
class  QMatrix 
class  QPainterPathStroker 
class  QTransform 
The QPainterPath class provides a container for painting operations, enabling graphical shapes to be constructed and reused.
A painter path is an object composed of a number of graphical building blocks, such as rectangles, ellipses, lines, and curves. Building blocks can be joined in closed subpaths, for example as a rectangle or an ellipse. A closed path has coinciding start and end points. Or they can exist independently as unclosed subpaths, such as lines and curves.
A QPainterPath object can be used for filling, outlining, and clipping. To generate fillable outlines for a given painter path, use the QPainterPathStroker class. The main advantage of painter paths over normal drawing operations is that complex shapes only need to be created once; then they can be drawn many times using only calls to the QPainter::drawPath() method.
QPainterPath provides a collection of methods that can be used to obtain information about the path and its elements. In addition it is possible to reverse the order of the elements using the toReversed() method. There are also several methods to convert this painter path object into a polygon representation.
A QPainterPath object can be constructed as an empty path, with a given start point, or as a copy of another QPainterPath object. Once created, lines and curves can be added to the path using the lineTo(), arcTo(), cubicTo() and quadTo() methods. The lines and curves stretch from the currentPosition() to the position passed as argument.
The currentPosition() of the QPainterPath object is always the end position of the last subpath that was added (or the initial start point). Use the moveTo() method to move the currentPosition() without adding a component. The moveTo() method implicitly starts a new subpath, and closes the previous one. Another way of starting a new subpath is to call the closeSubpath() method which closes the current path by adding a line from the currentPosition() back to the path's start position. Note that the new path will have (0, 0) as its initial currentPosition().
QPainterPath class also provides several convenience methods to add closed subpaths to a painter path: addEllipse(), addPath(), addRect(), addRegion() and addText(). The addPolygon() method adds an unclosed subpath. In fact, these methods are all collections of moveTo(), lineTo() and cubicTo() operations.
In addition, a path can be added to the current path using the connectPath() method. But note that this method will connect the last element of the current path to the first element of given one by adding a line.
The following code shows how a QPainterPath object can be used.
QPainterPath path;
path.addRect(20, 20, 60, 60);
path.moveTo(0, 0);
path.cubicTo(99, 0, 50, 50, 99, 99);
path.cubicTo(0, 99, 50, 50, 0, 0);
QPainter painter(this);
painter.fillRect(0, 0, 100, 100, Qt::white);
Qt::FlatCap, Qt::MiterJoin));
painter.drawPath(path);

The painter path is initially empty when constructed. We first add a rectangle, which is a closed subpath. Then we add two bezier curves which together form a closed subpath even though they are not closed individually. Finally we draw the entire path. The path is filled using the default fill rule, Qt::OddEvenFill. CopperSpice provides two methods for filling paths:
Qt::OddEvenFill  Qt::WindingFill 

Refer to the Qt::FillRule documentation for the definition of the rules. A painter path's currently set fill rule can be retrieved using the fillRule() method, and altered using the setFillRule() method.
The QPainterPath class provides a collection of methods that returns information about the path and its elements.
The currentPosition() method returns the end point of the last subpath that was added (or the initial start point). The elementAt() method can be used to retrieve the various subpath elements, the number of elements can be retrieved using the elementCount() method, and the isEmpty() method tells whether this QPainterPath object contains any elements at all.
The controlPointRect() method returns the rectangle containing all the points and control points in this path. This method is significantly faster to compute than the exact boundingRect() which returns the bounding rectangle of this painter path with floating point precision.
Finally, QPainterPath provides the contains() method which can be used to determine whether a given point or rectangle is inside the path, and the intersects() method which determines if any of the points inside a given rectangle also are inside this path.
For compatibility reasons, it might be required to simplify the representation of a painter path: QPainterPath provides the toFillPolygon(), toFillPolygons() and toSubpathPolygons() methods which convert the painter path into a polygon. The toFillPolygon() returns the painter path as one single polygon, while the two latter methods return a list of polygons.
The toFillPolygons() and toSubpathPolygons() methods are provided because it is usually faster to draw several small polygons than to draw one large polygon, even though the total number of points drawn is the same. The difference between the two is the number of polygons they return: The toSubpathPolygons() creates one polygon for each subpath regardless of intersecting subpaths (i.e. overlapping bounding rectangles), while the toFillPolygons() methods creates only one polygon for overlapping subpaths.
The toFillPolygon() and toFillPolygons() methods first convert all the subpaths to polygons, then uses a rewinding technique to make sure that overlapping subpaths can be filled using the correct fill rule. Note that rewinding inserts additional lines in the polygon so the outline of the fill polygon does not match the outline of the path.
This enum describes the types of elements used to connect vertices in subpaths.
Elements added as closed subpaths using the addEllipse(), addPath(), addPolygon(), addRect(), addRegion() and addText() convenience methods, is actually added to the path as a collection of separate elements using the moveTo(), lineTo() and cubicTo() methods.
Constant  Value  Description 

QPainterPath::MoveToElement  0  A new subpath. Refer to moveTo(). 
QPainterPath::LineToElement  1  A line. Refer to lineTo(). 
QPainterPath::CurveToElement  2  A curve. Refer to cubicTo() and quadTo(). 
QPainterPath::CurveToDataElement  3  The extra data required to describe a curve in a CurveToElement element. 
QPainterPath::QPainterPath  (  ) 
Constructs an empty QPainterPath object.

explicit 
Creates a QPainterPath object with the given startPoint as its current position.
QPainterPath::QPainterPath  (  const QPainterPath &  other  ) 
Copy constructs a new QPainterPath from other.
QPainterPath::~QPainterPath  (  ) 
Destroys this QPainterPath object.
Creates an ellipse positioned at center with radii rx and ry, and adds it to the painter path as a closed subpath.
void QPainterPath::addEllipse  (  const QRectF &  rect  ) 
Creates an ellipse within the specified rect and adds it to the painter path as a closed subpath. The ellipse is composed of a clockwise curve, starting and finishing at zero degrees (the 3 o'clock position).
QLinearGradient myGradient;
QPen myPen;
QRectF boundingRectangle;
QPainterPath myPath;
myPath.addEllipse(boundingRectangle);
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);

Creates an ellipse within the bounding rectangle defined by its topleft corner at (x, y), width and height, and adds it to the painter path as a closed subpath.
void QPainterPath::addPath  (  const QPainterPath &  path  ) 
Adds the given path to the current QPainterPath as a closed subpath.
void QPainterPath::addPolygon  (  const QPolygonF &  polygon  ) 
Adds the given polygon to the path as an (unclosed) subpath. The current position after the polygon has been added, is the last point in polygon. To draw a line back to the first point, use the closeSubpath() method.
QLinearGradient myGradient;
QPen myPen;
QPolygonF myPolygon;
QPainterPath myPath;
myPath.addPolygon(myPolygon);
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);

void QPainterPath::addRect  (  const QRectF &  rect  ) 
Adds the given rect to this path as a closed subpath. The rectangle is added as a clockwise set of lines. The painter path's current position after the rectangle has been added is at the topleft corner of the rectangle.
QLinearGradient myGradient;
QPen myPen;
QRectF myRectangle;
QPainterPath myPath;
myPath.addRect(myRectangle);
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);

Adds a rectangle at position (x, y), with the given width and height, as a closed subpath.
void QPainterPath::addRegion  (  const QRegion &  region  ) 
Adds the given region to the path by adding each rectangle in the region as a separate closed subpath.
void QPainterPath::addRoundedRect  (  const QRectF &  rect, 
qreal  xRadius,  
qreal  yRadius,  
Qt::SizeMode  mode = Qt::AbsoluteSize 

) 
Adds the given rectangle rect with rounded corners to the path.
The xRadius and yRadius arguments specify the radii of the ellipses defining the corners of the rounded rectangle. When mode is Qt::RelativeSize, xRadius and yRadius are specified in percentage of half the rectangle's width and height respectively, and should be in the range 0.0 to 100.0.

inline 
Adds the given rectangle x, y, width, height with rounded corners to the path.

inlinedeprecated 
Adds a rounded rectangle, rect, to the path.
The roundness argument specifies uniform roundness for the rectangle. Vertical and horizontal roundness factors will be adjusted accordingly to act uniformly around both axes. Use this method if you want a rectangle equally rounded across both the X and Y axis.

deprecated 
The xRound and yRound arguments specify how rounded the corners should be. 0 is angled corners, 99 is maximum roundedness.

inlinedeprecated 
Adds a rounded rectangle to the path, defined by the coordinates x and y with the specified width and height.
The roundness argument specifies uniform roundness for the rectangle. Vertical and horizontal roundness factors will be adjusted accordingly to act uniformly around both axes. Use this method if you want a rectangle equally rounded across both the X and Y axis.

inlinedeprecated 
Adds a rectangle with rounded corners to the path. The rectangle is constructed from x, y, and the width and height width and height. The xRound and yRound arguments specify how rounded the corners should be. 0 is angled corners, 99 is maximum roundedness.
Adds the given text to this path as a set of closed subpaths created from the font supplied. The subpaths are positioned so that the left end of the text's baseline lies at the specified point.
QLinearGradient myGradient;
QPen myPen;
QFont myFont;
QPointF baseline(x, y);
QPainterPath myPath;
myPath.addText(baseline, myFont, tr("CopperSpice"));
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);

Adds the given text to this path as a set of closed subpaths created from the font supplied. The subpaths are positioned so that the left end of the text's baseline lies at the point specified by (x, y).
Returns the angle of the path tangent at the percentage t and it must be between 0 and 1. Positive values for the angles mean counterclockwise while negative values mean the clockwise direction. Zero degrees is at the 3 o'clock position.
Note that similarly to the other percent methods, the percentage measurement is not linear with regards to the length if curves are present in the path. When curves are present the percentage argument is mapped to the t parameter of the Bezier equations.
Creates a move to that lies on the arc that occupies the QRectF(x, y, width, height) at angle.
Creates an arc that occupies the given rect beginning at the specified startAngle and extending arcLength degrees counterclockwise. Angles are specified in degrees. Clockwise arcs can be specified using negative angles.
This method connects the starting point of the arc to the current position if they are not already connected. After the arc has been added, the current position is the last point in arc. To draw a line back to the first point, use the closeSubpath() method.
QLinearGradient myGradient;
QPen myPen;
QPointF center, startPoint;
QPainterPath myPath;
myPath.moveTo(center);
myPath.arcTo(boundingRect, startAngle, sweepLength);
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);


inline 
Creates an arc that occupies the rectangle QRectF(x, y, width, height), beginning at the specified startAngle and extending arcLength degrees counterclockwise.
QRectF QPainterPath::boundingRect  (  )  const 
Returns the bounding rectangle of this painter path as a rectangle with floating point precision.
void QPainterPath::closeSubpath  (  ) 
Closes the current subpath by drawing a line to the beginning of the subpath, automatically starting a new path. The current point of the new path is (0, 0). If the subpath does not contain any elements, this method does nothing.
void QPainterPath::connectPath  (  const QPainterPath &  path  ) 
Connects the given path to the current QPainterPath by adding a line from the last element of this path to the first element of the given path.
bool QPainterPath::contains  (  const QPainterPath &  other  )  const 
Returns true if the current QPainterPath completely contains other. Returns false if any edge of the current QPainterPath and other intersect.
Set operations on paths will treat the paths as areas. Nonclosed paths will be treated as implicitly closed.
bool QPainterPath::contains  (  const QPointF &  point  )  const 
Returns true if the given point is inside the path, otherwise returns false.
bool QPainterPath::contains  (  const QRectF &  rect  )  const 
Returns true if the given rect is inside the path, otherwise returns false.
QRectF QPainterPath::controlPointRect  (  )  const 
Returns the rectangle containing all the points and control points in this path. This method is significantly faster to compute than the exact boundingRect(), and the returned rectangle is always a superset of the rectangle returned by boundingRect().
void QPainterPath::cubicTo  (  const QPointF &  point1, 
const QPointF &  point2,  
const QPointF &  point3  
) 
Adds a cubic Bezier curve between the current position and the given point3 using the control points specified by point1, and point2. After the curve is added, the current position is updated to be at the end point of the curve.
QLinearGradient myGradient;
QPen myPen;
QPainterPath myPath;
myPath.cubicTo(point1, point2, point3);
QPainter painter(this);
painter.setBrush(myGradient);
painter.setPen(myPen);
painter.drawPath(myPath);

Adds a cubic Bezier curve between the current position and the end point (x3, y3) with control points specified by (x1, y1) and (x2, y2).
QPointF QPainterPath::currentPosition  (  )  const 
Returns the current position of the path.
QPainterPath::Element QPainterPath::elementAt  (  int  index  )  const 
Returns the element at the given index in the painter path.
int QPainterPath::elementCount  (  )  const 
Returns the number of path elements in the painter path.
Qt::FillRule QPainterPath::fillRule  (  )  const 
Returns the painter path's currently set fill rule.
QPainterPath QPainterPath::intersected  (  const QPainterPath &  other  )  const 
Returns a path which is the intersection of this path's fill area and the other fill area. Bezier curves may be flattened to line segments due to numerical instability of doing bezier curve intersections.
bool QPainterPath::intersects  (  const QPainterPath &  other  )  const 
Returns true if the current QPainterPath intersects other at any point. This method will also return true if the current path overlaps any part of the other QPainterPath.
Set operations on paths will treat the paths as areas. Nonclosed paths will be treated as implicitly closed.
bool QPainterPath::intersects  (  const QRectF &  rect  )  const 
Returns true if any point in the given rect intersects the path, otherwise returns false.
There is an intersection if any of the lines making up the rectangle crosses a part of the path or if any part of the rectangle overlaps with any area enclosed by the path. This method respects the current fillRule to determine what is considered inside the path.
bool QPainterPath::isEmpty  (  )  const 
Returns true if either there are no elements in this path, or if the only element is a MoveToElement, otherwise returns false.
qreal QPainterPath::length  (  )  const 
Returns the length of the current path.
void QPainterPath::lineTo  (  const QPointF &  endPoint  ) 
Adds a straight line from the current position to the given endPoint. After the line is drawn, the current position is updated to be at the end point of the line.
Draws a line from the current position to the point (x, y).
void QPainterPath::moveTo  (  const QPointF &  point  ) 
Moves the current point to the given point, implicitly starting a new subpath and closing the previous one.
Moves the current position to (x, y) and starts a new subpath, implicitly closing the previous path.
bool QPainterPath::operator!=  (  const QPainterPath &  other  )  const 
Returns true if this painter path differs from the given other. Comparing paths may involve a per element comparison which can be slow for complex paths.
QPainterPath QPainterPath::operator&  (  const QPainterPath &  other  )  const 
Returns the intersection of this path and the other path.
QPainterPath & QPainterPath::operator&=  (  const QPainterPath &  other  ) 
Intersects this path with other and returns a reference to this path.
QPainterPath QPainterPath::operator+  (  const QPainterPath &  other  )  const 
Returns the union of this path and the other path. This method is equivalent to operator().
QPainterPath & QPainterPath::operator+=  (  const QPainterPath &  other  ) 
Unites this path with other, and returns a reference to this path. This is equivalent to operator=().
QPainterPath QPainterPath::operator  (  const QPainterPath &  other  )  const 
Subtracts the other path from a copy of this path and returns the copy.
QPainterPath & QPainterPath::operator=  (  const QPainterPath &  other  ) 
Subtracts other from this path and returns a reference to this path.
QPainterPath & QPainterPath::operator=  (  const QPainterPath &  other  ) 
Copy assigns from other and returns a reference to this object.

inline 
Move assigns from other and returns a reference to this object.
bool QPainterPath::operator==  (  const QPainterPath &  other  )  const 
Returns true if this painterpath is equal to the given other. Comparing paths may involve a per element comparison which can be slow for complex paths.
QPainterPath QPainterPath::operator  (  const QPainterPath &  other  )  const 
Returns the union of this path and the other path.
QPainterPath & QPainterPath::operator=  (  const QPainterPath &  other  ) 
Unites this path with other and returns a reference to this path.
Returns percentage of the whole path at the specified length len.
Note that similarly to other percent methods, the percentage measurement is not linear with regards to the length, if curves are present in the path. When curves are present the percentage argument is mapped to the t parameter of the Bezier equations.
Returns the point at the percentage t of the current path. The argument t must be between 0 and 1.
Similarly to other percent methods, the percentage measurement is not linear with regards to the length, if curves are present in the path. When curves are present the percentage argument is mapped to the t parameter of the Bezier equations.
Adds a quadratic Bezier curve between the current position and the given point2 with the control point specified by point1. After the curve is added, the current point is updated to be at the end point of the curve.
Adds a quadratic Bezier curve between the current point and the endpoint (x2, y2) with the control point specified by (x1, y1).
Sets the x and y coordinate of the element at index to x and y.
void QPainterPath::setFillRule  (  Qt::FillRule  fillRule  ) 
Sets the fill rule of the painter path to the given fillRule. CopperSpice provides two methods for filling paths.
Qt::OddEvenFill (default)  Qt::WindingFill 

QPainterPath QPainterPath::simplified  (  )  const 
Returns a simplified version of this path. This implies merging all subpaths that intersect, and returning a path containing no intersecting edges. Consecutive parallel lines will also be merged. The simplified path will always use the default fill rule, Qt::OddEvenFill. Bezier curves may be flattened to line segments due to numerical instability of doing bezier curve intersections.
Returns the slope of the path at the percentage t and this must be between 0 and 1.
The percentage measurement is not linear with regards to the length, if curves are present in the path. When curves are present the percentage argument is mapped to the t parameter of the Bezier equations.
QPainterPath QPainterPath::subtracted  (  const QPainterPath &  other  )  const 
Returns a path which is other fill area subtracted from this path's fill area. Set operations on paths will treat the paths as areas. Nonclosed paths will be treated as implicitly closed. Bezier curves may be flattened to line segments due to numerical instability of doing bezier curve intersections.

deprecated 

inline 
Swaps painter path other with this painter path. This operation is very fast and never fails.
Converts the path into a polygon using the QTransform matrix and returns the polygon.
QPolygonF QPainterPath::toFillPolygon  (  const QTransform &  matrix  )  const 
Converts the path into a polygon using the QTransform matrix, and returns the polygon. The polygon is created by first converting all subpaths to polygons, then using a rewinding technique to make sure that overlapping subpaths can be filled using the correct fill rule.
Rewinding inserts addition lines in the polygon so the outline of the fill polygon does not match the outline of the path.
Converts the path into a polygon using the QTransform matrix, and returns the list.
QList< QPolygonF > QPainterPath::toFillPolygons  (  const QTransform &  matrix  )  const 
Converts the path into a list of polygons using the QTransform matrix and returns the list.
The method differs from the toFillPolygon() method in that it creates several polygons. It is provided because it is usually faster to draw several small polygons than to draw one large polygon, even though the total number of points drawn is the same.
The toFillPolygons() method differs from the toSubpathPolygons() method in that it create only polygon for subpaths that have overlapping bounding rectangles.
Like toFillPolygon(), this method uses a rewinding technique to make sure that overlapping subpaths can be filled using the correct fill rule. Rewinding inserts addition lines in the polygons so the outline of the fill polygon does not match the outline of the path.
QPainterPath QPainterPath::toReversed  (  )  const 
Converts the path into a list of polygons using the QTransform matrix, and returns the list.
QList< QPolygonF > QPainterPath::toSubpathPolygons  (  const QTransform &  matrix  )  const 
Converts the path into a list of polygons using the QTransform matrix, and returns the list.
This method creates one polygon for each subpath regardless of intersecting subpaths (i.e. overlapping bounding rectangles). To make sure that such overlapping subpaths are filled correctly, use the toFillPolygons() method instead.

inline 
Translates all elements in the path by the given offset.
Translates all elements in the path by (dx, dy).

inline 
Returns a copy of the path that is translated by the given offset.
Returns a copy of the path that is translated by (dx, dy).
QPainterPath QPainterPath::united  (  const QPainterPath &  other  )  const 
Returns a path which is the union of this QPainterPath fill area and the other fill area.
Set operations on paths will treat the paths as areas. Nonclosed paths will be treated as implicitly closed. Bezier curves may be flattened to line segments due to numerical instability of doing bezier curve intersections.

friend 
Writes the path to the stream and returns a reference to the stream.
Refer to Serializing Data Types for additional information.

friend 
Reads the painter path from the stream into the specified path and returns a reference to the stream.
Refer to Serializing Data Types for additional information.