/usr/include/qgis/qgslegendsymbolitemv2.h is in libqgis-dev 2.14.11+dfsg-3+deb9u1.
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qgslegendsymbolitemv2.h
--------------------------------------
Date : August 2014
Copyright : (C) 2014 by Martin Dobias
Email : wonder dot sk at gmail dot com
***************************************************************************
* *
* 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 QGSLEGENDSYMBOLITEMV2_H
#define QGSLEGENDSYMBOLITEMV2_H
#include <QString>
class QgsSymbolV2;
/**
* The class stores information about one class/rule of a vector layer renderer in a unified way
* that can be used by legend model for rendering of legend.
*
* @see QgsSymbolV2LegendNode
* @note added in 2.6
*/
class CORE_EXPORT QgsLegendSymbolItemV2
{
public:
QgsLegendSymbolItemV2();
//! Construct item. Does not take ownership of symbol (makes internal clone)
//! @note parentRuleKey added in 2.8
QgsLegendSymbolItemV2( QgsSymbolV2* symbol, const QString& label, const QString& ruleKey, bool checkable = false, int scaleMinDenom = -1, int scaleMaxDenom = -1, int level = 0, const QString& parentRuleKey = QString() );
~QgsLegendSymbolItemV2();
QgsLegendSymbolItemV2( const QgsLegendSymbolItemV2& other );
QgsLegendSymbolItemV2& operator=( const QgsLegendSymbolItemV2& other );
//! Return associated symbol. May be null.
QgsSymbolV2* symbol() const { return mSymbol; }
//! Return text label
QString label() const { return mLabel; }
//! Return unique identifier of the rule for identification of the item within renderer
QString ruleKey() const { return mKey; }
//! Return whether the item is user-checkable - whether renderer supports enabling/disabling it
bool isCheckable() const { return mCheckable; }
//! Used for older code that identifies legend entries from symbol pointer within renderer
QgsSymbolV2* legacyRuleKey() const { return mOriginalSymbolPointer; }
//! Determine whether given scale is within the scale range. Returns true if scale or scale range is invalid (value <= 0)
bool isScaleOK( double scale ) const;
//! Min scale denominator of the scale range. For range 1:1000 to 1:2000 this will return 1000.
//! Value <= 0 means the range is unbounded on this side
int scaleMinDenom() const { return mScaleMinDenom; }
//! Max scale denominator of the scale range. For range 1:1000 to 1:2000 this will return 2000.
//! Value <= 0 means the range is unbounded on this side
int scaleMaxDenom() const { return mScaleMaxDenom; }
//! Identation level that tells how deep the item is in a hierarchy of items. For flat lists level is 0
int level() const { return mLevel; }
//! Key of the parent legend node. For legends with tree hierarchy
//! @note added in 2.8
QString parentRuleKey() const { return mParentKey; }
//! Set symbol of the item. Takes ownership of symbol.
void setSymbol( QgsSymbolV2* s );
private:
//! symbol. owned by the struct. can be null.
QgsSymbolV2* mSymbol;
//! label of the item (may be empty or non-unique)
QString mLabel;
//! unique identifier of the symbol item (within renderer)
QString mKey;
//! whether it can be enabled/disabled
bool mCheckable;
QgsSymbolV2* mOriginalSymbolPointer;
// additional data that may be used for filtering
int mScaleMinDenom;
int mScaleMaxDenom;
//! Identation level that tells how deep the item is in a hierarchy of items. For flat lists level is 0
int mLevel;
//! Key of the parent legend node. For legends with tree hierarchy
QString mParentKey;
};
typedef QList< QgsLegendSymbolItemV2 > QgsLegendSymbolListV2;
#endif // QGSLEGENDSYMBOLITEMV2_H
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