/usr/include/qgis/qgscomposerscalebar.h is in libqgis-dev 1.7.4+1.7.5~20120320-1.1+b1.
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qgscomposerscalebar.h
-------------------
begin : March 2005
copyright : (C) 2005 by Radim Blazek
email : blazek@itc.it
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSCOMPOSERSCALEBAR_H
#define QGSCOMPOSERSCALEBAR_H
#include "qgscomposeritem.h"
#include <QPen>
class QgsComposerMap;
class QgsScaleBarStyle;
/** \ingroup MapComposer
* A scale bar item that can be added to a map composition.
*/
class CORE_EXPORT QgsComposerScaleBar: public QgsComposerItem
{
Q_OBJECT
public:
QgsComposerScaleBar( QgsComposition* composition );
~QgsComposerScaleBar();
/** return correct graphics item type. Added in v1.7 */
virtual int type() const { return ComposerScaleBar; }
/** \brief Reimplementation of QCanvasItem::paint*/
void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
//getters and setters
int numSegments() const {return mNumSegments;}
void setNumSegments( int nSegments ) {mNumSegments = nSegments;}
int numSegmentsLeft() const {return mNumSegmentsLeft;}
void setNumSegmentsLeft( int nSegmentsLeft ) {mNumSegmentsLeft = nSegmentsLeft;}
double numUnitsPerSegment() const {return mNumUnitsPerSegment;}
void setNumUnitsPerSegment( double units );
double numMapUnitsPerScaleBarUnit() const {return mNumMapUnitsPerScaleBarUnit;}
void setNumMapUnitsPerScaleBarUnit( double d ) {mNumMapUnitsPerScaleBarUnit = d;}
QString unitLabeling() const {return mUnitLabeling;}
void setUnitLabeling( const QString& label ) {mUnitLabeling = label;}
QFont font() const;
void setFont( const QFont& font );
QPen pen() const {return mPen;}
void setPen( const QPen& pen ) {mPen = pen;}
QBrush brush() const {return mBrush;}
void setBrush( const QBrush& brush ) {mBrush = brush;}
double height() const {return mHeight;}
void setHeight( double h ) {mHeight = h;}
void setComposerMap( const QgsComposerMap* map );
const QgsComposerMap* composerMap() const {return mComposerMap;}
double labelBarSpace() const {return mLabelBarSpace;}
void setLabelBarSpace( double space ) {mLabelBarSpace = space;}
double boxContentSpace() const {return mBoxContentSpace;}
void setBoxContentSpace( double space ) {mBoxContentSpace = space;}
double segmentMillimeters() const {return mSegmentMillimeters;}
/**Apply default settings*/
void applyDefaultSettings();
/**Apply default size (scale bar 1/5 of map item width)
@note this method was added in version 1.7*/
void applyDefaultSize();
/**Sets style by name
@param styleName (untranslated) style name. Possibilities are: 'Single Box', 'Double Box', 'Line Ticks Middle', 'Line Ticks Down', 'Line Ticks Up', 'Numeric'*/
void setStyle( const QString& styleName );
/**Returns style name*/
QString style() const;
/**Returns the x - positions of the segment borders (in item coordinates) and the width
of the segment*/
void segmentPositions( QList<QPair<double, double> >& posWidthList ) const;
/**Sets box size suitable to content*/
void adjustBoxSize();
/**Adjusts box size and calls QgsComposerItem::update()*/
void update();
/**Returns string of first label (important for drawing, labeling, size calculation*/
QString firstLabelString() const;
/** stores state in Dom element
* @param elem is Dom element corresponding to 'Composer' tag
* @param doc Dom document
*/
bool writeXML( QDomElement& elem, QDomDocument & doc ) const;
/** sets state from Dom document
* @param itemElem is Dom node corresponding to item tag
* @param doc is Dom document
*/
bool readXML( const QDomElement& itemElem, const QDomDocument& doc );
public slots:
void updateSegmentSize();
/**Sets mCompositionMap to 0 if the map is deleted*/
void invalidateCurrentMap();
protected:
/**Reference to composer map object*/
const QgsComposerMap* mComposerMap;
/**Number of segments on right side*/
int mNumSegments;
/**Number of segments on left side*/
int mNumSegmentsLeft;
/**Size of a segment (in map units)*/
double mNumUnitsPerSegment;
/**Number of map units per scale bar units (e.g. 1000 to have km for a map with m units)*/
double mNumMapUnitsPerScaleBarUnit;
/**Labeling of map units*/
QString mUnitLabeling;
/**Font*/
QFont mFont;
/**Outline*/
QPen mPen;
/**Fill*/
QBrush mBrush;
/**Height of bars/lines*/
double mHeight;
/**Scalebar style*/
QgsScaleBarStyle* mStyle;
/**Space between bar and Text labels*/
double mLabelBarSpace;
/**Space between content and item box*/
double mBoxContentSpace;
/**Width of a segment (in mm)*/
double mSegmentMillimeters;
/**Calculates with of a segment in mm and stores it in mSegmentMillimeters*/
void refreshSegmentMillimeters();
};
#endif //QGSCOMPOSERSCALEBAR_H
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