KoPolygonUtils Class Reference

The KoPolygonUtils class. More...

#include <KoPolygonUtils.h>

Static Public Member Functions
static QPolygon	offsetPolygon (const QPolygon &polygon, int offset, bool rounded=true, int circleSegments=16)
	offsetPolygon This offsets a single polygon, using the winding/nonzero fill-rule to determine inside and outside.
static QList< QPolygon >	offsetPolygons (const QList< QPolygon > polygons, int offset, bool rounded=true, int circleSegments=16)

Detailed Description

The KoPolygonUtils class.

This class allows us to use the Polygon Concept from boost for QPolygons, which has a very fast polygon offset algorithm, necessary for text-padding.

For more info see: https://www.boost.org/doc/libs/1_81_0/libs/polygon/doc/gtl_polygon_set_concept.htm

Definition at line 22 of file KoPolygonUtils.h.

Member Function Documentation

offsetPolygon()

QPolygon KoPolygonUtils::offsetPolygon ( const QPolygon & polygon, int offset, bool rounded = true, int circleSegments = 16 )

static

offsetPolygon This offsets a single polygon, using the winding/nonzero fill-rule to determine inside and outside.

Parameters

polygon
offset	the offset.
rounded	whether the edges are rounded.
circleSegments	segments in a 360° circle.

Returns

the offset polygon.

Definition at line 95 of file KoPolygonUtils.cpp.

{
    PolygonSet polygonSet;
    polygonSet.push_back(polygon);
    boost::polygon::resize(polygonSet, offset, rounded, circleSegments);
    return polygonSet[0];
}

offsetPolygons()

QList< QPolygon > KoPolygonUtils::offsetPolygons ( const QList< QPolygon > polygons, int offset, bool rounded = true, int circleSegments = 16 )

static

Definition at line 103 of file KoPolygonUtils.cpp.

{
    PolygonSet polygonSet;
    Q_FOREACH(QPolygon polygon, polygons) {
        polygonSet.push_back(polygon);
    }
    boost::polygon::resize(polygonSet, offset, rounded, circleSegments);
 
    QList<QPolygon> finalPolygons;
    for (int i=0; i < int(polygonSet.size()); i++) {
        finalPolygons.append(polygonSet.at(i));
    }
    return finalPolygons;
}

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

• libs/flake/text/KoPolygonUtils.h
• libs/flake/text/KoPolygonUtils.cpp