Added a checkbox to options dialog to enable/disable symbology-ng

git-svn-id: http://svn.osgeo.org/qgis/branches/symbology-ng-branch@11157 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: wonder

python/core/symbology-ng-core.sip

@@ -41,6 +41,9 @@ public:
     // TODO: user type?
   };
 
+  //! return a new renderer - used by default in vector layers
+  static QgsFeatureRendererV2* defaultRenderer(QGis::GeometryType geomType) /Factory/;
+
   RendererType type() const;
 
 	virtual QgsSymbolV2* symbolForFeature(QgsFeature& feature)=0;
@@ -397,6 +400,9 @@ public:
 
   virtual ~QgsSymbolV2();
 
+  //! return new default symbol for specified geometry type
+  static QgsSymbolV2* defaultSymbol(QGis::GeometryType geomType) /Factory/;
+
   SymbolType type() const;
 
   // symbol layers handling

src/app/qgsoptions.cpp

@@ -132,6 +132,8 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WFlags fl ) :
   //set the state of the checkboxes
   chkAntiAliasing->setChecked( settings.value( "/qgis/enable_anti_aliasing", false ).toBool() );
 
+  chkUseSymbologyNG->setChecked( settings.value( "/qgis/use_symbology_ng", false ).toBool() );
+
   // Slightly awkard here at the settings value is true to use QImage,
   // but the checkbox is true to use QPixmap
   chkUseQPixmap->setChecked( !( settings.value( "/qgis/use_qimage_to_render", true ).toBool() ) );
@@ -342,6 +344,7 @@ void QgsOptions::saveOptions()
   settings.setValue( "/qgis/new_layers_visible", chkAddedVisibility->isChecked() );
   settings.setValue( "/qgis/enable_anti_aliasing", chkAntiAliasing->isChecked() );
   settings.setValue( "/qgis/use_qimage_to_render", !( chkUseQPixmap->isChecked() ) );
+  settings.setValue( "/qgis/use_symbology_ng", chkUseSymbologyNG->isChecked() );
   settings.setValue( "qgis/capitaliseLayerName", capitaliseCheckBox->isChecked() );
   settings.setValue( "qgis/askToSaveProjectChanges", chbAskToSaveProjectChanges->isChecked() );
   settings.setValue( "qgis/warnOldProjectVersion", chbWarnOldProjectVersion->isChecked() );

src/core/qgsvectorlayer.cpp

@@ -123,24 +123,31 @@ QgsVectorLayer::QgsVectorLayer( QString vectorLayerPath,
   }
   if ( mValid )
   {
+    setCoordinateSystem();
+
     // check if there is a default style / propertysheet defined
     // for this layer and if so apply it
     //
-    if ( loadDefaultStyleFlag )
+    QSettings settings;
+    if ( settings.value( "/qgis/use_symbology_ng", false ).toBool() )
+    {
+      // using symbology-ng!
+      setUsingRendererV2(true);
+      setRendererV2( QgsFeatureRendererV2::defaultRenderer( geometryType() ) );
+    }
+    else if ( loadDefaultStyleFlag )
     {
       bool defaultLoadedFlag = false;
       loadDefaultStyle( defaultLoadedFlag );
       if ( !defaultLoadedFlag )
       {
-        setCoordinateSystem();
         // add single symbol renderer as default
         QgsSingleSymbolRenderer *renderer = new QgsSingleSymbolRenderer( geometryType() );
         setRenderer( renderer );
       }
     }
     else  // Otherwise use some very basic defaults
     {
-      setCoordinateSystem();
       // add single symbol renderer as default
       QgsSingleSymbolRenderer *renderer = new QgsSingleSymbolRenderer( geometryType() );
       setRenderer( renderer );
@@ -2468,6 +2475,9 @@ bool QgsVectorLayer::writeXml( QDomNode & layer_node,
 
 bool QgsVectorLayer::readSymbology( const QDomNode& node, QString& errorMessage )
 {
+  // TODO: load symbology-ng renderers
+  setUsingRendererV2(false);
+
   // process the attribute actions
   mActions->readXML( node );
 

src/core/symbology-ng/qgsrendererv2.cpp

@@ -115,6 +115,11 @@ QgsFeatureRendererV2::QgsFeatureRendererV2(RendererType type)
 {
 }
 
+QgsFeatureRendererV2* QgsFeatureRendererV2::defaultRenderer(QGis::GeometryType geomType)
+{
+  return new QgsSingleSymbolRendererV2( QgsSymbolV2::defaultSymbol(geomType) );
+}
+
 
 void QgsFeatureRendererV2::renderFeature(QgsFeature& feature, QgsRenderContext& context, int layer)
 {

src/core/symbology-ng/qgsrendererv2.h

@@ -2,6 +2,8 @@
 #ifndef QGSRENDERERV2_H
 #define QGSRENDERERV2_H
 
+#include "qgis.h"
+
 #include <QList>
 #include <QHash>
 #include <QString>
@@ -49,6 +51,9 @@ class QgsFeatureRendererV2
     RendererGraduatedSymbol
     // TODO: user type?
   };
+
+  //! return a new renderer - used by default in vector layers
+  static QgsFeatureRendererV2* defaultRenderer(QGis::GeometryType geomType);
 
   RendererType type() const { return mType; }
 

src/core/symbology-ng/qgssymbolv2.cpp

@@ -6,6 +6,7 @@
 #include "qgsmarkersymbollayerv2.h"
 #include "qgsfillsymbollayerv2.h"
 
+#include "qgslogger.h"
 #include "qgsrendercontext.h" // for bigSymbolPreview
 
 #include <QColor>
@@ -40,6 +41,17 @@ QgsSymbolV2::~QgsSymbolV2()
     delete *it;
 }
 
+QgsSymbolV2* QgsSymbolV2::defaultSymbol(QGis::GeometryType geomType)
+{
+  switch (geomType)
+  {
+    case QGis::Point: return new QgsMarkerSymbolV2();
+    case QGis::Line:  return new QgsLineSymbolV2();
+    case QGis::Polygon: return new QgsFillSymbolV2();
+    default: QgsDebugMsg("unknown layer's geometry type"); return NULL;
+  }
+}
+
 
 QgsSymbolLayerV2* QgsSymbolV2::symbolLayer(int layer)
 {

src/core/symbology-ng/qgssymbolv2.h

@@ -2,6 +2,7 @@
 #ifndef QGSSYMBOLV2_H
 #define QGSSYMBOLV2_H
 
+#include "qgis.h"
 #include <QList>
 
 class QColor;
@@ -30,6 +31,9 @@ class QgsSymbolV2
 
   virtual ~QgsSymbolV2();
 
+  //! return new default symbol for specified geometry type
+  static QgsSymbolV2* defaultSymbol(QGis::GeometryType geomType);
+
   SymbolType type() const { return mType; }
 
   // symbol layers handling

src/gui/symbology-ng/qgsrendererv2propertiesdialog.cpp

@@ -25,7 +25,7 @@ QgsRendererV2PropertiesDialog::QgsRendererV2PropertiesDialog(QgsVectorLayer* lay
   // if the layer doesn't use renderer V2, let's start using it!
   if (!mLayer->isUsingRendererV2())
   {
-    mLayer->setRendererV2(new QgsSingleSymbolRendererV2( createDefaultSymbol() ));
+    mLayer->setRendererV2( QgsFeatureRendererV2::defaultRenderer(mLayer->geometryType()) );
     mLayer->setUsingRendererV2(true);
   }
 
@@ -61,7 +61,7 @@ QgsRendererV2PropertiesDialog::QgsRendererV2PropertiesDialog(QgsVectorLayer* lay
   m->setHorizontalHeaderLabels(labels);
   viewCategories->setModel(m);
 
-  mCategorizedSymbol = createDefaultSymbol();
+  mCategorizedSymbol = QgsSymbolV2::defaultSymbol(mLayer->geometryType());
 
   connect(cboCategorizedColumn, SIGNAL(currentIndexChanged(int)), this, SLOT(categoryColumnChanged()));
 
@@ -80,7 +80,7 @@ QgsRendererV2PropertiesDialog::QgsRendererV2PropertiesDialog(QgsVectorLayer* lay
   mg->setHorizontalHeaderLabels(labels);
   viewGraduated->setModel(mg);
 
-  mGraduatedSymbol = createDefaultSymbol();
+  mGraduatedSymbol = QgsSymbolV2::defaultSymbol(mLayer->geometryType());
 
   connect(viewGraduated, SIGNAL(doubleClicked(const QModelIndex &)), this, SLOT(rangesDoubleClicked(const QModelIndex &)));
 
@@ -148,7 +148,7 @@ void QgsRendererV2PropertiesDialog::updateRenderer()
   delete mRenderer;
 
   if (radSingleSymbol->isChecked())
-    mRenderer = new QgsSingleSymbolRendererV2( createDefaultSymbol() );
+    mRenderer = new QgsSingleSymbolRendererV2( QgsSymbolV2::defaultSymbol(mLayer->geometryType()) );
   else if (radCategorized->isChecked())
     mRenderer = new QgsCategorizedSymbolRendererV2(-1, QgsCategoryList());
   else if (radGraduated->isChecked())
@@ -221,17 +221,6 @@ void QgsRendererV2PropertiesDialog::updateUiFromRenderer()
 }
 
 
-QgsSymbolV2* QgsRendererV2PropertiesDialog::createDefaultSymbol()
-{
-  switch (mLayer->geometryType())
-  {
-    case QGis::Point: return new QgsMarkerSymbolV2();
-    case QGis::Line:  return new QgsLineSymbolV2();
-    case QGis::Polygon: return new QgsFillSymbolV2();
-    default: QgsDebugMsg("unknown layer's geometry type"); return NULL;
-  }
-}
-
 void QgsRendererV2PropertiesDialog::changeCategorizedSymbol()
 {
   QgsSymbolV2SelectorDialog dlg(mCategorizedSymbol, mStyle, this);

src/gui/symbology-ng/qgsrendererv2propertiesdialog.h

@@ -50,9 +50,6 @@ public slots:
   void updateCategorizedSymbolIcon();
   void updateGraduatedSymbolIcon();
 
-  //! create default symbol for the layer's geometry type (point/line/polygon)
-  QgsSymbolV2* createDefaultSymbol();
-  
   //! populate categories view
   void populateCategories();