[Server] Read and activate selection color

The selection color is read from QgsProject by QgsMapRenderer during the
rendering. So Server has to activate selection color by set color read from
project XML.

src/server/qgssldconfigparser.cpp

@@ -726,6 +726,15 @@ bool QgsSLDConfigParser::WMSInspireActivated() const
   return false;
 }
 
+bool QgsSLDConfigParser::activateSelectionColor() const
+{
+  if ( mFallbackParser )
+  {
+    return mFallbackParser->activateSelectionColor();
+  }
+  return false;
+}
+
 QgsComposition* QgsSLDConfigParser::createPrintComposition( const QString& composerTemplate, QgsMapRenderer* mapRenderer, const QMap< QString, QString >& parameterMap, QStringList& highlightLayers ) const
 {
   if ( mFallbackParser )

src/server/qgssldconfigparser.h

@@ -112,6 +112,9 @@ class QgsSLDConfigParser : public QgsWMSConfigParser
     /** Adds inspire capabilities to xml document. ParentElem usually is the <Capabilities> element*/
     void inspireCapabilities( QDomElement& parentElement, QDomDocument& doc ) const override;
 
+    // Selection color
+    bool activateSelectionColor() const override;
+
     //printing
 
     /** Creates a print composition, usually for a GetPrint request. Replaces map and label parameters*/

src/server/qgswmsconfigparser.h

@@ -118,6 +118,9 @@ class SERVER_EXPORT QgsWMSConfigParser
     /** Adds inspire capabilities to xml document. ParentElem usually is the <Capabilities> element*/
     virtual void inspireCapabilities( QDomElement& parentElement, QDomDocument& doc ) const = 0;
 
+    // Selection color
+    virtual bool activateSelectionColor() const = 0;
+
     //printing
 
     /** Creates a print composition, usually for a GetPrint request. Replaces map and label parameters*/

src/server/qgswmsprojectparser.cpp

@@ -26,6 +26,7 @@
 #include "qgspallabeling.h"
 #include "qgsrendererv2.h"
 #include "qgsvectorlayer.h"
+#include "qgsproject.h"
 
 #include "qgscomposition.h"
 #include "qgscomposerarrow.h"
@@ -469,6 +470,51 @@ bool QgsWMSProjectParser::WMSInspireActivated() const
   return inspireActivated;
 }
 
+bool QgsWMSProjectParser::activateSelectionColor() const
+{
+  QDomElement propertiesElem = mProjectParser->propertiesElem();
+  if ( !propertiesElem.isNull() )
+  {
+    QDomElement guiElem = propertiesElem.firstChildElement( "Gui" );
+    if ( !guiElem.isNull() )
+    {
+      int myAlpha = 255;
+      int myRed = 255;
+      int myGreen = 255;
+      int myBlue = 0;
+
+      QDomElement alphaElem = guiElem.firstChildElement( "SelectionColorAlphaPart" );
+      if ( !alphaElem.isNull() )
+      {
+        myAlpha = QVariant( alphaElem.text() ).toInt();
+      }
+      QDomElement redElem = guiElem.firstChildElement( "SelectionColorRedPart" );
+      if ( !redElem.isNull() )
+      {
+        myRed = QVariant( redElem.text() ).toInt();
+      }
+      QDomElement greenElem = guiElem.firstChildElement( "SelectionColorGreenPart" );
+      if ( !greenElem.isNull() )
+      {
+        myGreen = QVariant( greenElem.text() ).toInt();
+      }
+      QDomElement blueElem = guiElem.firstChildElement( "SelectionColorBluePart" );
+      if ( !blueElem.isNull() )
+      {
+        myBlue = QVariant( blueElem.text() ).toInt();
+      }
+      QgsProject* prj = QgsProject::instance();
+      prj->writeEntry( "Gui", "/SelectionColorRedPart", myRed );
+      prj->writeEntry( "Gui", "/SelectionColorGreenPart", myGreen );
+      prj->writeEntry( "Gui", "/SelectionColorBluePart", myBlue );
+      prj->writeEntry( "Gui", "/SelectionColorAlphaPart", myAlpha );
+      return true;
+    }
+  }
+
+  return false;
+}
+
 QgsComposition* QgsWMSProjectParser::initComposition( const QString& composerTemplate, QgsMapRenderer* mapRenderer, QList< QgsComposerMap* >& mapList, QList< QgsComposerLegend* >& legendList, QList< QgsComposerLabel* >& labelList, QList<const QgsComposerHtml *>& htmlList ) const
 {
   //Create composition from xml
@@ -484,6 +530,9 @@ QgsComposition* QgsWMSProjectParser::initComposition( const QString& composerTem
     return nullptr;
   }
 
+  // Selection color
+  activateSelectionColor();
+
   QgsComposition* composition = new QgsComposition( mapRenderer->mapSettings() ); //set resolution, paper size from composer element attributes
   if ( !composition->readXML( compositionElem, *( mProjectParser->xmlDocument() ) ) )
   {

src/server/qgswmsprojectparser.h

@@ -72,6 +72,9 @@ class SERVER_EXPORT QgsWMSProjectParser : public QgsWMSConfigParser
     bool WMSInspireActivated() const override;
     void inspireCapabilities( QDomElement& parentElement, QDomDocument& doc ) const override;
 
+    // Selection color
+    bool activateSelectionColor() const override;
+
     //printing
     QgsComposition* initComposition( const QString& composerTemplate, QgsMapRenderer* mapRenderer, QList< QgsComposerMap* >& mapList, QList< QgsComposerLegend* >& legendList, QList< QgsComposerLabel* >& labelList, QList<const QgsComposerHtml *>& htmlFrameList ) const override;
     void printCapabilities( QDomElement& parentElement, QDomDocument& doc ) const override;

src/server/qgswmsserver.cpp

@@ -1424,6 +1424,9 @@ QImage* QgsWMSServer::getMap( HitTest* hitTest )
   QPainter thePainter( theImage );
   thePainter.setRenderHint( QPainter::Antialiasing ); //make it look nicer
 
+  // Selection color
+  mConfigParser->activateSelectionColor();
+
   QStringList layerSet = mMapRenderer->layerSet();
   QStringList highlightLayers = QgsWMSConfigParser::addHighlightLayers( mParameters, layerSet );
   mMapRenderer->setLayerSet( layerSet );