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296 lines
8.7 KiB
Plaintext
296 lines
8.7 KiB
Plaintext
/** \ingroup MapComposer
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* A scale bar item that can be added to a map composition.
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*/
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class QgsComposerScaleBar: QgsComposerItem
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{
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%TypeHeaderCode
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#include "qgscomposerscalebar.h"
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%End
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public:
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enum Alignment
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{
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Left,
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Middle,
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Right
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};
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enum ScaleBarUnits
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{
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MapUnits,
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Meters,
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Feet,
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NauticalMiles
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};
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/** Modes for setting size for scale bar segments
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*/
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enum SegmentSizeMode
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{
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SegmentSizeFixed, /*!< Scale bar segment size is fixed to a map unit*/
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SegmentSizeFitWidth /*!< Scale bar segment size is calculated to fit a size range*/
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};
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QgsComposerScaleBar( QgsComposition* composition /TransferThis/ );
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~QgsComposerScaleBar();
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/** Return correct graphics item type. */
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virtual int type() const;
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/** \brief Reimplementation of QCanvasItem::paint*/
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void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
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//getters and setters
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int numSegments() const;
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void setNumSegments( int nSegments );
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int numSegmentsLeft() const;
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void setNumSegmentsLeft( int nSegmentsLeft );
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double numUnitsPerSegment() const;
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void setNumUnitsPerSegment( double units );
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/** Returns the size mode for scale bar segments.
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* @see setSegmentSizeMode
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* @see minBarWidth
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* @see maxBarWidth
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* @note added in QGIS 2.9
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*/
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SegmentSizeMode segmentSizeMode() const;
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/** Sets the size mode for scale bar segments.
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* @param mode size mode
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* @see segmentSizeMode
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* @see setMinBarWidth
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* @see setMaxBarWidth
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* @note added in QGIS 2.9
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*/
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void setSegmentSizeMode( SegmentSizeMode mode );
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/** Returns the minimum size (in millimeters) for scale bar segments. This
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* property is only effective if the @link segmentSizeMode @endlink is set
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* to @link SegmentSizeFitWidth @endlink.
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* @see segmentSizeMode
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* @see setMinBarWidth
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* @see maxBarWidth
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* @note added in QGIS 2.9
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*/
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double minBarWidth() const;
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/** Sets the minimum size (in millimeters) for scale bar segments. This
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* property is only effective if the @link segmentSizeMode @endlink is set
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* to @link SegmentSizeFitWidth @endlink.
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* @param minWidth minimum width in millimeters
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* @see minBarWidth
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* @see setMaxBarWidth
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* @see setSegmentSizeMode
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* @note added in QGIS 2.9
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*/
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void setMinBarWidth( double minWidth );
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/** Returns the maximum size (in millimeters) for scale bar segments. This
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* property is only effective if the @link segmentSizeMode @endlink is set
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* to @link SegmentSizeFitWidth @endlink.
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* @see segmentSizeMode
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* @see setMaxBarWidth
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* @see minBarWidth
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* @note added in QGIS 2.9
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*/
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double maxBarWidth() const;
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/** Sets the maximum size (in millimeters) for scale bar segments. This
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* property is only effective if the @link segmentSizeMode @endlink is set
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* to @link SegmentSizeFitWidth @endlink.
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* @param minWidth maximum width in millimeters
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* @see minBarWidth
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* @see setMaxBarWidth
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* @see setSegmentSizeMode
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* @note added in QGIS 2.9
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*/
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void setMaxBarWidth( double maxWidth );
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double numMapUnitsPerScaleBarUnit() const;
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void setNumMapUnitsPerScaleBarUnit( double d );
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QString unitLabeling() const;
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void setUnitLabeling( const QString& label );
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QFont font() const;
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void setFont( const QFont& font );
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/** Returns the color used for drawing text in the scalebar.
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* @returns font color for scalebar.
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* @see setFontColor
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* @see font
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*/
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QColor fontColor() const;
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/** Sets the color used for drawing text in the scalebar.
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* @param c font color for scalebar.
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* @see fontColor
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* @see setFont
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*/
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void setFontColor( const QColor& c );
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/** Returns the pen used for drawing the scalebar.
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* @returns QPen used for drawing the scalebar outlines.
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* @see setPen
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* @see brush
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*/
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QPen pen() const;
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/** Sets the pen used for drawing the scalebar.
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* @param pen QPen to use for drawing the scalebar outlines.
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* @see pen
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* @see setBrush
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*/
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void setPen( const QPen& pen );
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/** Returns the primary brush for the scalebar.
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* @returns QBrush used for filling the scalebar
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* @see setBrush
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* @see brush2
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* @see pen
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*/
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QBrush brush() const;
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/** Sets primary brush for the scalebar.
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* @param brush QBrush to use for filling the scalebar
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* @see brush
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* @see setBrush2
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* @see setPen
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*/
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void setBrush( const QBrush& brush );
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/** Returns the secondary brush for the scalebar. This is used for alternating color style scalebars, such
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* as single and double box styles.
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* @returns QBrush used for secondary color areas
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* @see setBrush2
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* @see brush
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*/
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QBrush brush2() const;
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/** Sets secondary brush for the scalebar. This is used for alternating color style scalebars, such
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* as single and double box styles.
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* @param brush QBrush to use for secondary color areas
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* @see brush2
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* @see setBrush
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*/
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void setBrush2( const QBrush& brush );
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double height() const;
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void setHeight( double h );
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void setComposerMap( const QgsComposerMap* map );
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const QgsComposerMap* composerMap();
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double labelBarSpace() const;
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void setLabelBarSpace( double space );
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double boxContentSpace() const;
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void setBoxContentSpace( double space );
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double segmentMillimeters() const;
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/** Left / Middle/ Right */
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Alignment alignment() const;
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void setAlignment( Alignment a );
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ScaleBarUnits units() const;
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void setUnits( ScaleBarUnits u );
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/** Returns the join style used for drawing lines in the scalebar
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* @returns Join style for lines
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* @note introduced in 2.3
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* @see setLineJoinStyle
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*/
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Qt::PenJoinStyle lineJoinStyle() const;
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/** Sets join style used when drawing the lines in the scalebar
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* @param style Join style for lines
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* @returns nothing
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* @note introduced in 2.3
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* @see lineJoinStyle
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*/
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void setLineJoinStyle( Qt::PenJoinStyle style );
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/** Returns the cap style used for drawing lines in the scalebar
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* @returns Cap style for lines
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* @note introduced in 2.3
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* @see setLineCapStyle
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*/
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Qt::PenCapStyle lineCapStyle() const;
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/** Sets cap style used when drawing the lines in the scalebar
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* @param style Cap style for lines
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* @returns nothing
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* @note introduced in 2.3
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* @see lineCapStyle
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*/
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void setLineCapStyle( Qt::PenCapStyle style );
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/** Apply default settings*/
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void applyDefaultSettings();
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/** Apply default size (scale bar 1/5 of map item width) */
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void applyDefaultSize( ScaleBarUnits u = Meters );
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/** Sets style by name
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@param styleName (untranslated) style name. Possibilities are: 'Single Box', 'Double Box', 'Line Ticks Middle', 'Line Ticks Down', 'Line Ticks Up', 'Numeric'*/
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void setStyle( const QString& styleName );
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/** Returns style name*/
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QString style() const;
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/** Returns the x - positions of the segment borders (in item coordinates) and the width
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of the segment
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@note python bindings not available on android
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*/
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%If (!ARM)
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%If (!QT5_SUPPORT)
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void segmentPositions( QList<QPair<double, double> >& posWidthList ) const;
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%End
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%End
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/** Sets box size suitable to content*/
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void adjustBoxSize();
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/** Adjusts box size and calls QgsComposerItem::update()*/
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void update();
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/** Returns string of first label (important for drawing, labeling, size calculation*/
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QString firstLabelString() const;
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/** Stores state in Dom element
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* @param elem is Dom element corresponding to 'Composer' tag
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* @param doc Dom document
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*/
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bool writeXML( QDomElement& elem, QDomDocument & doc ) const;
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/** Sets state from Dom document
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* @param itemElem is Dom node corresponding to item tag
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* @param doc is Dom document
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*/
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bool readXML( const QDomElement& itemElem, const QDomDocument& doc );
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/** Moves scalebar position to the left / right depending on alignment and change in item width*/
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void correctXPositionAlignment( double width, double widthAfter );
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//overriden to apply minimum size
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void setSceneRect( const QRectF &rectangle );
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public slots:
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void updateSegmentSize();
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/** Sets mCompositionMap to 0 if the map is deleted*/
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void invalidateCurrentMap();
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protected:
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/** Calculates with of a segment in mm and stores it in mSegmentMillimeters*/
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void refreshSegmentMillimeters();
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/** Returns diagonal of composer map in selected units (map units / meters / feet / nautical miles)*/
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double mapWidth() const;
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};
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