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- style manager is always enabled (client code does not need to distinguish between enabled/disabled state) - layers currently active style is stored only in QgsMapLayer - in style manager it has entry with no data (avoids duplication of data) This also solves issues with visibility presets and styles when some presets do not have stored style
70 lines
2.3 KiB
Plaintext
70 lines
2.3 KiB
Plaintext
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class QgsMapLayerStyle
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{
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%TypeHeaderCode
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#include <qgsmaplayerstylemanager.h>
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%End
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public:
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//! construct invalid style
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QgsMapLayerStyle();
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//! Tell whether the style is valid (i.e. there is something stored in it)
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bool isValid() const;
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//! Remove any stored style data (will get invalid)
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void clear();
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//! Return information about the style - for debugging purposes only
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QString dump() const;
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//! Store layer's active style information in the instance
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void readFromLayer( QgsMapLayer* layer );
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//! Apply stored layer's style information to the layer
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void writeToLayer( QgsMapLayer* layer ) const;
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//! Read style configuration (for project file reading)
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void readXml( const QDomElement& styleElement );
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//! Write style configuration (for project file writing)
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void writeXml( QDomElement& styleElement ) const;
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};
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class QgsMapLayerStyleManager
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{
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%TypeHeaderCode
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#include <qgsmaplayerstylemanager.h>
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%End
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public:
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//! Construct a style manager associated with a map layer (must not be null)
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QgsMapLayerStyleManager( QgsMapLayer* layer );
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//! Reset the style manager to a basic state - with one default style which is set as current
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void reset();
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//! Read configuration (for project loading)
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void readXml( const QDomElement& mgrElement );
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//! Write configuration (for project saving)
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void writeXml( QDomElement& mgrElement ) const;
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//! Return list of all defined style names
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QStringList styles() const;
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//! Return data of a stored style - accessed by its unique name
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QgsMapLayerStyle style( const QString& name ) const;
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//! Add a style with given name and data
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//! @return true on success (name is unique and style is valid)
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bool addStyle( const QString& name, const QgsMapLayerStyle& style );
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//! Add style by cloning the current one
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//! @return true on success
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bool addStyleFromLayer( const QString& name );
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//! Remove a stored style
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//! @return true on success (style exists and it is not the last one)
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bool removeStyle( const QString& name );
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//! Return name of the current style
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QString currentStyle() const;
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//! Set a different style as the current style - will apply it to the layer
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//! @return true on success
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bool setCurrentStyle( const QString& name );
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};
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