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[FEATURE] Support for custom plugin layers. Applied patch from #2392 …
…contributed by Mathias Walker. Thanks! Some parts modified to make plugin layers easier to use and more robust. git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@12834 c8812cc2-4d05-0410-92ff-de0c093fc19c
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Jan 26, 2010
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Original file line number | Diff line number | Diff line change |
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class QgsPluginLayer : QgsMapLayer | ||
{ | ||
%TypeHeaderCode | ||
#include "qgspluginlayer.h" | ||
%End | ||
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public: | ||
QgsPluginLayer(QString layerType, QString layerName = QString()); | ||
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/** return plugin layer type (the same as used in QgsPluginLayerRegistry) */ | ||
QString pluginLayerType(); | ||
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}; |
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Original file line number | Diff line number | Diff line change |
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class QgsPluginLayerType | ||
{ | ||
%TypeHeaderCode | ||
#include "qgspluginlayerregistry.h" | ||
%End | ||
public: | ||
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QgsPluginLayerType(QString name); | ||
virtual ~QgsPluginLayerType(); | ||
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QString name(); | ||
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/** return new layer of this type. Return NULL on error */ | ||
virtual QgsPluginLayer* createLayer() /Factory/; | ||
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/** show plugin layer properties dialog. Return FALSE if the dialog cannot be shown. */ | ||
virtual bool showLayerProperties(QgsPluginLayer* layer); | ||
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}; | ||
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class QgsPluginLayerRegistry | ||
{ | ||
%TypeHeaderCode | ||
#include "qgspluginlayerregistry.h" | ||
%End | ||
public: | ||
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/** means of accessing canonical single instance */ | ||
static QgsPluginLayerRegistry* instance(); | ||
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~QgsPluginLayerRegistry(); | ||
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/** add plugin layer type (take ownership) and return TRUE on success */ | ||
bool addPluginLayerType(QgsPluginLayerType* pluginLayerType /Transfer/); | ||
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/** remove plugin layer type and return TRUE on success */ | ||
bool removePluginLayerType(QString typeName); | ||
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/** return plugin layer type metadata or NULL if doesn't exist */ | ||
QgsPluginLayerType* pluginLayerType(QString typeName); | ||
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/** return new layer if corresponding plugin has been found, else return NULL */ | ||
// to be resolved | ||
//QgsPluginLayer* createLayer(QString typeName); | ||
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private: | ||
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/** private since instance() creates it */ | ||
QgsPluginLayerRegistry(); | ||
}; |
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Original file line number | Diff line number | Diff line change |
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#include "qgspluginlayer.h" | ||
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QgsPluginLayer::QgsPluginLayer( QString layerType, QString layerName ) | ||
: QgsMapLayer( PluginLayer, layerName ), mPluginLayerType( layerType ) | ||
{ | ||
} | ||
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QString QgsPluginLayer::pluginLayerType() | ||
{ | ||
return mPluginLayerType; | ||
} |
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#ifndef QGSPLUGINLAYER_H | ||
#define QGSPLUGINLAYER_H | ||
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#include "qgsmaplayer.h" | ||
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/** \ingroup core | ||
Base class for plugin layers. These can be implemented by plugins | ||
and registered in QgsPluginLayerRegistry. | ||
In order to be readable from project files, they should set these attributes in layer DOM node: | ||
"type" = "plugin" | ||
"name" = "your_layer_type" | ||
*/ | ||
class CORE_EXPORT QgsPluginLayer : public QgsMapLayer | ||
{ | ||
Q_OBJECT | ||
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public: | ||
QgsPluginLayer( QString layerType, QString layerName = QString() ); | ||
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/** return plugin layer type (the same as used in QgsPluginLayerRegistry) */ | ||
QString pluginLayerType(); | ||
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protected: | ||
QString mPluginLayerType; | ||
}; | ||
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#endif // QGSPLUGINLAYER_H |
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