/usr/include/qgis/qgscomposerattributetable.h is in libqgis-dev 1.7.4+1.7.5~20120320-1.1+b1.
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qgscomposerattributetable.h
---------------------------
begin : April 2010
copyright : (C) 2010 by Marco Hugentobler
email : marco at hugis dot net
***************************************************************************/
/***************************************************************************
* *
* 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 QGSCOMPOSERATTRIBUTETABLE_H
#define QGSCOMPOSERATTRIBUTETABLE_H
#include "qgscomposertable.h"
class QgsComposerMap;
class QgsVectorLayer;
/**Helper class for sorting, takes into account sorting column and ascending / descending*/
class QgsComposerAttributeTableCompare
{
public:
QgsComposerAttributeTableCompare();
bool operator()( const QgsAttributeMap& m1, const QgsAttributeMap& m2 );
void setSortColumn( int col ) { mCurrentSortColumn = col; }
void setAscending( bool asc ) { mAscending = asc; }
private:
int mCurrentSortColumn;
bool mAscending;
};
/**A table class that displays a vector attribute table*/
class CORE_EXPORT QgsComposerAttributeTable: public QgsComposerTable
{
Q_OBJECT
public:
QgsComposerAttributeTable( QgsComposition* composition );
~QgsComposerAttributeTable();
/** return correct graphics item type. Added in v1.7 */
virtual int type() const { return ComposerAttributeTable; }
/** \brief Reimplementation of QCanvasItem::paint*/
virtual void paint( QPainter* painter, const QStyleOptionGraphicsItem* itemStyle, QWidget* pWidget );
bool writeXML( QDomElement& elem, QDomDocument & doc ) const;
bool readXML( const QDomElement& itemElem, const QDomDocument& doc );
void setVectorLayer( QgsVectorLayer* vl );// { mVectorLayer = vl; }
const QgsVectorLayer* vectorLayer() const { return mVectorLayer; }
void setComposerMap( const QgsComposerMap* map );
const QgsComposerMap* composerMap() const { return mComposerMap; }
void setMaximumNumberOfFeatures( int nr ) { mMaximumNumberOfFeatures = nr; }
int maximumNumberOfFeatures() const { return mMaximumNumberOfFeatures; }
void setDisplayOnlyVisibleFeatures( bool b ) { mShowOnlyVisibleFeatures = b; }
bool displayOnlyVisibleFeatures() const { return mShowOnlyVisibleFeatures; }
QSet<int> displayAttributes() const { return mDisplayAttributes; }
void setDisplayAttributes( const QSet<int>& attr ) { mDisplayAttributes = attr;}
QMap<int, QString> fieldAliasMap() const { return mFieldAliasMap; }
void setFieldAliasMap( const QMap<int, QString>& map ) { mFieldAliasMap = map; }
/**Adapts mMaximumNumberOfFeatures depending on the rectangle height*/
void setSceneRect( const QRectF& rectangle );
void setSortAttributes( const QList<QPair<int, bool> > att ) { mSortInformation = att; }
QList<QPair<int, bool> > sortAttributes() const { return mSortInformation; }
protected:
/**Retrieves feature attributes*/
bool getFeatureAttributes( QList<QgsAttributeMap>& attributes );
QMap<int, QString> getHeaderLabels() const;
private:
/**Associated vector layer*/
QgsVectorLayer* mVectorLayer;
/**Associated composer map (used to display the visible features)*/
const QgsComposerMap* mComposerMap;
/**Maximum number of features that is displayed*/
int mMaximumNumberOfFeatures;
/**Shows only the features that are visible in the associated composer map (true by default)*/
bool mShowOnlyVisibleFeatures;
/**List of attribute indices to display (or all attributes if list is empty)*/
QSet<int> mDisplayAttributes;
/**Map of attribute name aliases. The aliases might be different to those of QgsVectorLayer (but those from the vector layer are the default)*/
QMap<int, QString> mFieldAliasMap;
/**Contains information about sort attribute index / ascending (true/false). First entry has the highest priority*/
QList< QPair<int, bool> > mSortInformation;
/**Inserts aliases from vector layer as starting configuration to the alias map*/
void initializeAliasMap();
/**Returns the attribute name to display in the item (attribute name or an alias if present)*/
QString attributeDisplayName( int attributeIndex, const QString& name ) const;
private slots:
/**Checks if this vector layer will be removed (and sets mVectorLayer to 0 if yes) */
void removeLayer( QString layerId );
signals:
/**This signal is emitted if the maximum number of feature changes (interactively)*/
void maximumNumerOfFeaturesChanged( int n );
};
#endif // QGSCOMPOSERATTRIBUTETABLE_H
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