26 mIconSize( 5 ), mIconType( ICON_BOX ), mGeometryType( geomType )
28 mPen = QPen( QColor( 255, 0, 0 ) );
29 mBrush = QBrush( QColor( 255, 0, 0 ) );
38 if ( !mGeometry || !painter )
44 painter->translate( -pos() );
48 painter->setBrush( mBrush );
52 painter->setBrush( Qt::NoBrush );
54 painter->setPen( mPen );
57 std::unique_ptr< QgsAbstractGeometry > paintGeom( mGeometry->clone() );
60 paintGeom->draw( *painter );
68 while ( paintGeom->nextVertex( vertexId, vertex ) )
70 drawVertex( painter, vertex.
x(), vertex.
y() );
84void QgsGeometryRubberBand::drawVertex( QPainter *p,
double x,
double y )
86 const qreal s = ( mIconSize - 1 ) / 2.0;
94 p->drawLine( QLineF( x - s, y, x + s, y ) );
95 p->drawLine( QLineF( x, y - s, x, y + s ) );
99 p->drawLine( QLineF( x - s, y - s, x + s, y + s ) );
100 p->drawLine( QLineF( x - s, y + s, x + s, y - s ) );
104 p->drawLine( QLineF( x - s, y - s, x + s, y - s ) );
105 p->drawLine( QLineF( x + s, y - s, x + s, y + s ) );
106 p->drawLine( QLineF( x + s, y + s, x - s, y + s ) );
107 p->drawLine( QLineF( x - s, y + s, x - s, y - s ) );
111 p->drawRect( x - s, y - s, mIconSize, mIconSize );
115 p->drawEllipse( x - s, y - s, mIconSize, mIconSize );
122 mGeometry.reset( geom );
126 setRect( rubberBandRectangle() );
134 mGeometry->moveVertex(
id, newPos );
135 setRect( rubberBandRectangle() );
141 mBrush.setColor(
c );
151 mPen.setWidth( width );
156 mPen.setStyle( penStyle );
161 mBrush.setStyle( brushStyle );
166 mDrawVertices = isVerticesDrawn;
169QgsRectangle QgsGeometryRubberBand::rubberBandRectangle()
const
171 if ( !mGeometry || mGeometry->isEmpty() )
177 qreal w = ( ( mIconSize - 1 ) / 2 + mPen.width() );
181 QList<QgsPointXY> pl;
211 setRect( rubberBandRectangle() );
GeometryType
The geometry types are used to group Qgis::WkbType in a coarse way.
Abstract base class for all geometries.
void setStrokeColor(const QColor &c)
Sets stroke color for vertex markers.
QgsGeometryRubberBand(QgsMapCanvas *mapCanvas, Qgis::GeometryType geomType=Qgis::GeometryType::Line)
Constructor for QgsGeometryRubberBand of the given geomType, shown in the specified mapCanvas.
~QgsGeometryRubberBand() override
@ ICON_X
A cross is used to highlight points (x)
@ ICON_NONE
No icon is used.
@ ICON_FULL_BOX
A full box is used to highlight points (■)
@ ICON_CIRCLE
A circle is used to highlight points (○)
@ ICON_BOX
A box is used to highlight points (□)
@ ICON_CROSS
A cross is used to highlight points (+)
Qgis::GeometryType geometryType() const
Returns which geometry is handled by the rubber band, polygon or line.
void setGeometryType(Qgis::GeometryType geometryType)
Sets which geometry is handled by the rubber band, polygon or line.
void setBrushStyle(Qt::BrushStyle brushStyle)
Sets brush style.
void updatePosition() override
called on changed extent or resize event to update position of the item
void setLineStyle(Qt::PenStyle penStyle)
Sets pen style.
virtual void setGeometry(QgsAbstractGeometry *geom)
Sets geometry (takes ownership). Geometry is expected to be in map coordinates.
void paint(QPainter *painter) override
function to be implemented by derived classes
void moveVertex(QgsVertexId id, const QgsPoint &newPos)
Moves vertex to new position (in map coordinates)
void setStrokeWidth(int width)
Sets stroke width.
void setVertexDrawingEnabled(bool isVerticesDrawn)
Sets whether the vertices are drawn.
void setFillColor(const QColor &c)
Sets fill color for vertex markers.
An abstract class for items that can be placed on the map canvas.
QgsRectangle rect() const
returns canvas item rectangle in map units
QPointF toCanvasCoordinates(const QgsPointXY &point) const
transformation from map coordinates to screen coordinates
QgsMapCanvas * mMapCanvas
pointer to map canvas
void setRect(const QgsRectangle &r, bool resetRotation=true)
sets canvas item rectangle in map units
Map canvas is a class for displaying all GIS data types on a canvas.
const QgsMapToPixel * getCoordinateTransform()
Gets the current coordinate transform.
Perform transforms between map coordinates and device coordinates.
double mapUnitsPerPixel() const
Returns the current map units per pixel.
QgsPointXY toMapCoordinates(int x, int y) const
Transforms device coordinates to map (world) coordinates.
QgsPointXY transform(const QgsPointXY &p) const
Transforms a point p from map (world) coordinates to device coordinates.
A class to represent a 2D point.
Point geometry type, with support for z-dimension and m-values.
A rectangle specified with double values.
double xMinimum() const
Returns the x minimum value (left side of rectangle).
double yMinimum() const
Returns the y minimum value (bottom side of rectangle).
double width() const
Returns the width of the rectangle.
double xMaximum() const
Returns the x maximum value (right side of rectangle).
double yMaximum() const
Returns the y maximum value (top side of rectangle).
void combineExtentWith(const QgsRectangle &rect)
Expands the rectangle so that it covers both the original rectangle and the given rectangle.
double height() const
Returns the height of the rectangle.
Scoped object for saving and restoring a QPainter object's state.
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
Utility class for identifying a unique vertex within a geometry.