Quantum GIS API Documentation
1.7.4
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#include <qgsdiagram.h>
Public Types | |
enum | Shape { Circle = 0, Rectangle, Triangle } |
enum | Orientation { Horizontal = 0, Vertical } |
Public Member Functions | |
QgsTextDiagram () | |
~QgsTextDiagram () | |
void | renderDiagram (const QgsAttributeMap &att, QgsRenderContext &c, const QgsDiagramSettings &s, const QPointF &position) |
Draws the diagram at the given position (in pixel coordinates) | |
QString | diagramName () const |
Private Member Functions | |
void | lineEllipseIntersection (const QPointF &lineStart, const QPointF &lineEnd, const QPointF &ellipseMid, double r1, double r2, QList< QPointF > &result) const |
Calculates intersection points between a line and an ellipse. | |
Private Attributes | |
Orientation | mOrientation |
Shape | mShape |
QBrush | mBrush |
QPen | mPen |
Definition at line 28 of file qgsdiagram.h.
Definition at line 38 of file qgsdiagram.h.
Definition at line 31 of file qgsdiagram.h.
Definition at line 46 of file qgsdiagram.cpp.
Definition at line 54 of file qgsdiagram.cpp.
QString QgsTextDiagram::diagramName | ( | ) | const [inline, virtual] |
Implements QgsDiagram.
Definition at line 48 of file qgsdiagram.h.
void QgsTextDiagram::lineEllipseIntersection | ( | const QPointF & | lineStart, |
const QPointF & | lineEnd, | ||
const QPointF & | ellipseMid, | ||
double | r1, | ||
double | r2, | ||
QList< QPointF > & | result | ||
) | const [private] |
Calculates intersection points between a line and an ellipse.
Definition at line 195 of file qgsdiagram.cpp.
Referenced by renderDiagram().
void QgsTextDiagram::renderDiagram | ( | const QgsAttributeMap & | att, |
QgsRenderContext & | c, | ||
const QgsDiagramSettings & | s, | ||
const QPointF & | position | ||
) | [virtual] |
Draws the diagram at the given position (in pixel coordinates)
Implements QgsDiagram.
Definition at line 58 of file qgsdiagram.cpp.
References QgsDiagramSettings::backgroundColor, QgsDiagramSettings::categoryColors, QgsDiagramSettings::categoryIndices, Circle, Horizontal, lineEllipseIntersection(), QgsDiagramSettings::maxScaleDenominator, mBrush, QgsDiagramSettings::minScaleDenominator, mOrientation, mPen, mShape, QgsRenderContext::painter(), QgsDiagramSettings::penColor, Rectangle, QgsRenderContext::rendererScale(), QgsDiagram::scaledFont(), QgsDiagram::setPenWidth(), QgsDiagramSettings::size, and QgsDiagram::sizePainterUnits().
QBrush QgsTextDiagram::mBrush [private] |
Definition at line 53 of file qgsdiagram.h.
Referenced by QgsTextDiagram(), and renderDiagram().
Orientation QgsTextDiagram::mOrientation [private] |
Definition at line 51 of file qgsdiagram.h.
Referenced by renderDiagram().
QPen QgsTextDiagram::mPen [private] |
Definition at line 54 of file qgsdiagram.h.
Referenced by QgsTextDiagram(), and renderDiagram().
Shape QgsTextDiagram::mShape [private] |
Definition at line 52 of file qgsdiagram.h.
Referenced by renderDiagram().