qgsconditionalstyle.h

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#ifndef QGSCONDITIONALSTYLE_H
#define QGSCONDITIONALSTYLE_H

#include <QFont>
#include <QColor>
#include <QPixmap>
#include <QDomNode>
#include <QDomDocument>

#include "qgsfeature.h"
#include "qgssymbolv2.h"

class QgsConditionalStyle;

typedef QList<QgsConditionalStyle> QgsConditionalStyles;


class CORE_EXPORT QgsConditionalLayerStyles
{
  public:
    QgsConditionalLayerStyles();

    QList<QgsConditionalStyle> rowStyles();

    void setRowStyles( const QList<QgsConditionalStyle>& styles );

    void setFieldStyles( const QString& fieldName, const QList<QgsConditionalStyle>& styles );

    QList<QgsConditionalStyle> fieldStyles( const QString& fieldName );

    bool readXml( const QDomNode& node );

    bool writeXml( QDomNode & node, QDomDocument & doc ) const;

  private:
    QHash<QString, QgsConditionalStyles> mFieldStyles;
    QList<QgsConditionalStyle> mRowStyles;
};

class CORE_EXPORT QgsConditionalStyle
{
  public:
    QgsConditionalStyle();
    QgsConditionalStyle( const QgsConditionalStyle& other );
    QgsConditionalStyle( const QString& rule );
    ~QgsConditionalStyle();

    QgsConditionalStyle& operator=( const QgsConditionalStyle& other );

    bool matches( const QVariant& value, QgsExpressionContext& context ) const;

    QPixmap renderPreview() const;

    void setName( const QString& value ) { mName = value; mValid = true; }

    void setRule( const QString& value ) { mRule = value; mValid = true; }

    void setBackgroundColor( const QColor& value ) { mBackColor = value; mValid = true; }

    void setTextColor( const QColor& value ) { mTextColor = value; mValid = true; }

    void setFont( const QFont& value ) { mFont = value; mValid = true; }

    void setSymbol( QgsSymbolV2* value );

    QString displayText() const;

    QString name() const { return mName; }

    QPixmap icon() const { return mIcon; }

    QgsSymbolV2* symbol() const { return mSymbol.data(); }

    QColor textColor() const { return mTextColor; }

    bool validTextColor() const;

    QColor backgroundColor() const { return mBackColor; }

    bool validBackgroundColor() const;
    QFont font() const { return mFont; }

    QString rule() const { return mRule; }

    bool isValid() const { return mValid; }

    static QList<QgsConditionalStyle> matchingConditionalStyles( const QList<QgsConditionalStyle>& styles, const QVariant& value, QgsExpressionContext& context );

    static QgsConditionalStyle matchingConditionalStyle( const QList<QgsConditionalStyle>& styles, const QVariant& value, QgsExpressionContext& context );

    static QgsConditionalStyle compressStyles( const QList<QgsConditionalStyle>& styles );

    bool readXml( const QDomNode& node );

    bool writeXml( QDomNode & node, QDomDocument & doc ) const;


  private:

    bool mValid;
    QString mName;
    QString mRule;
    QScopedPointer<QgsSymbolV2> mSymbol;
    QFont mFont;
    QColor mBackColor;
    QColor mTextColor;
    QPixmap mIcon;
};

#endif // QGSCONDITIONALSTYLE_H