17 #ifndef QGSLAYOUTITEMPOLYLINE_H 18 #define QGSLAYOUTITEMPOLYLINE_H 20 #include "qgis_core.h" 61 int type()
const override;
62 QIcon
icon()
const override;
110 void setArrowHeadWidth(
double width );
123 void setStartSvgMarkerPath(
const QString &path );
137 void setEndSvgMarkerPath(
const QString &path );
158 void setArrowHeadStrokeColor(
const QColor &color );
172 void setArrowHeadFillColor(
const QColor &color );
179 void setArrowHeadStrokeWidth(
double width );
190 bool _addNode(
const int indexPoint, QPointF newPoint,
const double radius )
override;
205 std::unique_ptr<QgsLineSymbol> mPolylineStyleSymbol;
213 double mArrowHeadWidth = 4.0;
216 double mStartArrowHeadHeight = 0.0;
219 double mEndArrowHeadHeight = 0.0;
222 QString mStartMarkerFile;
225 QString mEndMarkerFile;
228 double mArrowHeadStrokeWidth = 1.0;
230 QColor mArrowHeadStrokeColor = Qt::black;
231 QColor mArrowHeadFillColor = Qt::black;
234 void createDefaultPolylineStyleSymbol();
240 void refreshSymbol();
242 void drawStartMarker( QPainter *painter );
243 void drawEndMarker( QPainter *painter );
245 void drawArrow( QPainter *painter, QPointF center,
double angle );
247 void updateMarkerSvgSizes();
258 static void drawArrowHead( QPainter *p,
const double x,
const double y,
const double angle,
const double arrowHeadWidth );
259 void drawSvgMarker( QPainter *p, QPointF point,
double angle,
const QString &markerPath,
double height )
const;
261 double computeMarkerMargin()
const;
263 friend class TestQgsLayoutPolyline;
268 #endif // QGSLAYOUTITEMPOLYLINE_H double arrowHeadWidth() const
Returns the width of line arrow heads in mm.
virtual void _writeXmlStyle(QDomDocument &doc, QDomElement &elmt, const QgsReadWriteContext &context) const =0
Method called in writeXml.
The class is used as a container of context for various read/write operations on other objects...
virtual QIcon icon() const
Returns the item's icon.
bool readPropertiesFromElement(const QDomElement &element, const QDomDocument &document, const QgsReadWriteContext &context) override
Sets item state from a DOM element.
QString startSvgMarkerPath() const
Returns the path the an SVG marker drawn at the start of the line.
int type() const override
Returns a unique graphics item type identifier.
virtual bool _removeNode(const int nodeIndex)=0
Method called in removeNode.
virtual void _draw(QgsLayoutItemRenderContext &context, const QStyleOptionGraphicsItem *itemStyle=nullptr)=0
Method called in paint.
MarkerMode
Vertex marker mode.
An abstract layout item that provides generic methods for node based shapes such as polygon or polyli...
bool writePropertiesToElement(QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const override
Stores item state within an XML DOM element.
virtual void updateBoundingRect()
Called when the bounding rect of the item should recalculated.
double ANALYSIS_EXPORT angle(QgsPoint *p1, QgsPoint *p2, QgsPoint *p3, QgsPoint *p4)
Calculates the angle between two segments (in 2 dimension, z-values are ignored)
QColor arrowHeadFillColor() const
Returns the color used to fill the arrow head.
QgsLineSymbol * symbol()
Returns the line symbol used to draw the shape.
Layout item for node based polyline shapes.
virtual bool _addNode(const int nodeIndex, QPointF newNode, const double radius)=0
Method called in addNode.
double arrowHeadStrokeWidth() const
Returns the pen width in millimeters for the stroke of the arrow head.
Base class for layouts, which can contain items such as maps, labels, scalebars, etc.
MarkerMode startMarker() const
Returns the start marker mode, which controls what marker is drawn at the start of the line...
Contains settings and helpers relating to a render of a QgsLayoutItem.
virtual QString displayName() const
Get item display name.
QgsCompositionConverter class converts a QGIS 2.x composition to a QGIS 3.x layout.
QString endSvgMarkerPath() const
Returns the path the an SVG marker drawn at the end of the line.
MarkerMode endMarker() const
Returns the end marker mode, which controls what marker is drawn at the end of the line...
QColor arrowHeadStrokeColor() const
Returns the color used to draw the stroke around the the arrow head.
virtual void _readXmlStyle(const QDomElement &elmt, const QgsReadWriteContext &context)=0
Method called in readXml.