27 return QStringLiteral(
"Double Box" );
32 return QObject::tr(
"Double Box" );
65 QPainter *painter = context.
painter();
76 std::unique_ptr< QgsLineSymbol > lineSymbol( settings.
lineSymbol()->
clone() );
77 lineSymbol->startRender( context );
79 std::unique_ptr< QgsFillSymbol > fillSymbol1( settings.
fillSymbol()->
clone() );
80 fillSymbol1->startRender( context );
83 fillSymbol2->startRender( context );
85 painter->setPen( Qt::NoPen );
86 painter->setBrush( Qt::NoBrush );
92 const QList<double> positions =
segmentPositions( context, scaleContext, settings );
93 const QList<double> widths =
segmentWidths( scaleContext, settings );
98 for (
int i = 0; i < positions.size(); ++i )
103 currentSymbol = fillSymbol1.get();
107 currentSymbol = fillSymbol2.get();
115 if ( i == positions.size() - 1 )
116 maxX = thisX + thisWidth;
118 const QRectF segmentRectTop( thisX, barTopPosition, thisWidth, segmentHeight );
120 << segmentRectTop.topLeft()
121 << segmentRectTop.topRight()
122 << segmentRectTop.bottomRight()
123 << segmentRectTop.bottomLeft()
124 << segmentRectTop.topLeft(),
125 nullptr,
nullptr, context );
126 painter->drawRect( segmentRectTop );
132 currentSymbol = fillSymbol2.get();
136 currentSymbol = fillSymbol1.get(); ;
139 const QRectF segmentRectBottom( thisX, barTopPosition + segmentHeight, thisWidth, segmentHeight );
142 << segmentRectBottom.topLeft()
143 << segmentRectBottom.topRight()
144 << segmentRectBottom.bottomRight()
145 << segmentRectBottom.bottomLeft()
146 << segmentRectBottom.topLeft(),
147 nullptr,
nullptr, context );
148 useColor = !useColor;
154 for (
int layer = 0; layer < lineSymbol->symbolLayerCount(); ++layer )
157 for (
int i = 1; i < positions.size(); ++i )
160 lineSymbol->renderPolyline( QPolygonF()
161 << QPointF( lineX, barTopPosition )
162 << QPointF( lineX, barTopPosition + segmentHeight * 2 ),
163 nullptr, context, layer );
167 lineSymbol->renderPolyline( QPolygonF()
168 << QPointF( minX, barTopPosition + segmentHeight )
169 << QPointF( maxX, barTopPosition + segmentHeight ),
170 nullptr, context, layer );
174 lineSymbol->renderPolyline( QPolygonF()
175 << QPointF( minX, barTopPosition )
176 << QPointF( maxX, barTopPosition )
177 << QPointF( maxX, barTopPosition + segmentHeight * 2 )
178 << QPointF( minX, barTopPosition + segmentHeight * 2 )
179 << QPointF( minX, barTopPosition ),
180 nullptr, context, layer );
183 lineSymbol->stopRender( context );
184 fillSymbol1->stopRender( context );
185 fillSymbol2->stopRender( context );
Double box with alternating colors.
Flags flags() const override
Returns the scalebar rendering flags, which dictates the renderer's behavior.
QgsDoubleBoxScaleBarRenderer()=default
Constructor for QgsDoubleBoxScaleBarRenderer.
void draw(QgsRenderContext &context, const QgsScaleBarSettings &settings, const QgsScaleBarRenderer::ScaleBarContext &scaleContext) const override
Draws the scalebar using the specified settings and scaleContext to a destination render context.
QString id() const override
Returns the unique ID for this renderer.
QString visibleName() const override
Returns the user friendly, translated name for the renderer.
QgsDoubleBoxScaleBarRenderer * clone() const override
Returns a clone of the renderer.
int sortKey() const override
Returns a sorting key value, where renderers with a lower sort key will be shown earlier in lists.
A fill symbol type, for rendering Polygon and MultiPolygon geometries.
void renderPolygon(const QPolygonF &points, const QVector< QPolygonF > *rings, const QgsFeature *f, QgsRenderContext &context, int layer=-1, bool selected=false)
Renders the symbol using the given render context.
QgsFillSymbol * clone() const override
Returns a deep copy of this symbol.
QgsLineSymbol * clone() const override
Returns a deep copy of this symbol.
Contains information about the context of a rendering operation.
QPainter * painter()
Returns the destination QPainter for the render operation.
void setPainterFlagsUsingContext(QPainter *painter=nullptr) const
Sets relevant flags on a destination painter, using the flags and settings currently defined for the ...
double convertToPainterUnits(double size, QgsUnitTypes::RenderUnit unit, const QgsMapUnitScale &scale=QgsMapUnitScale()) const
Converts a size from the specified units to painter units (pixels).
@ FlagUsesLabelVerticalPlacement
Renderer uses the QgsScaleBarSettings::labelVerticalPlacement() setting.
@ FlagUsesLabelHorizontalPlacement
Renderer uses the QgsScaleBarSettings::labelHorizontalPlacement() setting.
@ FlagUsesLineSymbol
Renderer utilizes the scalebar line symbol (see QgsScaleBarSettings::lineSymbol() )
@ FlagUsesUnitLabel
Renderer uses the QgsScaleBarSettings::unitLabel() setting.
@ FlagUsesSegments
Renderer uses the scalebar segments.
@ FlagUsesLabelBarSpace
Renderer uses the QgsScaleBarSettings::labelBarSpace() setting.
@ FlagUsesFillSymbol
Renderer utilizes the scalebar fill symbol (see QgsScaleBarSettings::fillSymbol() )
@ FlagRespectsMapUnitsPerScaleBarUnit
Renderer respects the QgsScaleBarSettings::mapUnitsPerScaleBarUnit() setting.
@ FlagRespectsUnits
Renderer respects the QgsScaleBarSettings::units() setting.
@ FlagUsesAlternateFillSymbol
Renderer utilizes the alternate scalebar fill symbol (see QgsScaleBarSettings::alternateFillSymbol() ...
void drawDefaultLabels(QgsRenderContext &context, const QgsScaleBarSettings &settings, const QgsScaleBarRenderer::ScaleBarContext &scaleContext) const
Draws default scalebar labels using the specified settings and scaleContext to a destination render c...
QList< double > segmentWidths(const QgsScaleBarRenderer::ScaleBarContext &scaleContext, const QgsScaleBarSettings &settings) const
Returns a list of widths of each segment of the scalebar.
Q_DECL_DEPRECATED QList< double > segmentPositions(const QgsScaleBarRenderer::ScaleBarContext &scaleContext, const QgsScaleBarSettings &settings) const
Returns a list of positions for each segment within the scalebar.
Q_DECL_DEPRECATED double firstLabelXOffset(const QgsScaleBarSettings &settings) const
Returns the x-offset (in millimeters) used for the first label in the scalebar.
The QgsScaleBarSettings class stores the appearance and layout settings for scalebar drawing with Qgs...
QgsLineSymbol * lineSymbol() const
Returns the line symbol used to render the scalebar (only used for some scalebar types).
double boxContentSpace() const
Returns the spacing (margin) between the scalebar box and content in millimeters.
QgsFillSymbol * alternateFillSymbol() const
Returns the secondary fill symbol used to render the scalebar (only used for some scalebar types).
QgsFillSymbol * fillSymbol() const
Returns the primary fill symbol used to render the scalebar (only used for some scalebar types).
LabelVerticalPlacement labelVerticalPlacement() const
Returns the vertical placement of text labels.
@ LabelAboveSegment
Labels are drawn above the scalebar.
double labelBarSpace() const
Returns the spacing (in millimeters) between labels and the scalebar.
QgsTextFormat & textFormat()
Returns the text format used for drawing text in the scalebar.
double height() const
Returns the scalebar height (in millimeters).
static QFontMetricsF fontMetrics(QgsRenderContext &context, const QgsTextFormat &format, double scaleFactor=1.0)
Returns the font metrics for the given text format, when rendered in the specified render context.
@ RenderMillimeters
Millimeters.
Contains parameters regarding scalebar calculations.