Default names for colors when adding to schemes

Author: nyalldawson

python/core/symbology-ng/qgssymbollayerv2utils.sip

@@ -191,6 +191,14 @@ class QgsSymbolLayerV2Utils
     static QgsVectorColorRampV2* loadColorRamp( QDomElement& element ) /Factory/;
     static QDomElement saveColorRamp( QString name, QgsVectorColorRampV2* ramp, QDomDocument& doc );
 
+    /**
+     * Returns a friendly display name for a color
+     * @param color source color
+     * @returns display name for color
+     * @note added in 2.5
+     */
+    static QString colorToName( const QColor& color );
+    
     /**
      * Attempts to parse a string as a list of colors using a variety of common formats, including hex
      * codes, rgb and rgba strings.

src/app/qgsoptions.cpp

@@ -37,6 +37,7 @@
 #include "qgsdialog.h"
 #include "qgscomposer.h"
 #include "qgscolorschemeregistry.h"
+#include "qgssymbollayerv2utils.h"
 
 #include <QInputDialog>
 #include <QFileDialog>
@@ -2087,7 +2088,7 @@ void QgsOptions::on_mButtonAddColor_clicked()
   }
   activateWindow();
 
-  mTreeCustomColors->addColor( newColor );
+  mTreeCustomColors->addColor( newColor, QgsSymbolLayerV2Utils::colorToName( newColor ) );
 }
 
 void QgsOptions::on_mButtonImportColors_clicked()

src/app/qgsprojectproperties.cpp

@@ -47,6 +47,7 @@
 #include "qgsrelationmanager.h"
 #include "qgisapp.h"
 #include "qgscolorschemeregistry.h"
+#include "qgssymbollayerv2utils.h"
 
 //qt includes
 #include <QColorDialog>
@@ -1700,7 +1701,7 @@ void QgsProjectProperties::on_mButtonAddColor_clicked()
   }
   activateWindow();
 
-  mTreeProjectColors->addColor( newColor );
+  mTreeProjectColors->addColor( newColor, QgsSymbolLayerV2Utils::colorToName( newColor ) );
 }
 
 void QgsProjectProperties::on_mButtonImportColors_clicked()

src/core/qgscolorscheme.cpp

@@ -69,7 +69,7 @@ QgsNamedColorList QgsRecentColorScheme::fetchColors( const QString context,
   QgsNamedColorList colorList;
   foreach ( QVariant color, recentColorVariants )
   {
-    colorList.append( qMakePair( color.value<QColor>(), QString() ) );
+    colorList.append( qMakePair( color.value<QColor>(), QgsSymbolLayerV2Utils::colorToName( color.value<QColor>() ) ) );
   }
   return colorList;
 }

src/core/symbology-ng/qgssymbollayerv2utils.cpp

@@ -2732,6 +2732,18 @@ QDomElement QgsSymbolLayerV2Utils::saveColorRamp( QString name, QgsVectorColorRa
   return rampEl;
 }
 
+QString QgsSymbolLayerV2Utils::colorToName( const QColor &color )
+{
+  if ( !color.isValid() )
+  {
+    return QString();
+  }
+
+  //TODO - utilise a color names database (such as X11) to return nicer names
+  //for now, just return hex codes
+  return color.name();
+}
+
 QList<QColor> QgsSymbolLayerV2Utils::parseColorList( const QString colorStr )
 {
   QList<QColor> colors;

src/core/symbology-ng/qgssymbollayerv2utils.h

@@ -229,6 +229,14 @@ class CORE_EXPORT QgsSymbolLayerV2Utils
     static QgsVectorColorRampV2* loadColorRamp( QDomElement& element );
     static QDomElement saveColorRamp( QString name, QgsVectorColorRampV2* ramp, QDomDocument& doc );
 
+    /**
+     * Returns a friendly display name for a color
+     * @param color source color
+     * @returns display name for color
+     * @note added in 2.5
+     */
+    static QString colorToName( const QColor& color );
+
     /**
      * Attempts to parse a string as a list of colors using a variety of common formats, including hex
      * codes, rgb and rgba strings.

src/gui/qgscolorschemelist.cpp

@@ -106,7 +106,7 @@ void QgsColorSchemeList::pasteColors()
   QgsNamedColorList::const_iterator colorIt = pastedColors.constBegin();
   for ( ; colorIt != pastedColors.constEnd(); ++colorIt )
   {
-    mModel->addColor(( *colorIt ).first, ( *colorIt ).second );
+    mModel->addColor(( *colorIt ).first, !( *colorIt ).second.isEmpty() ? ( *colorIt ).second : QgsSymbolLayerV2Utils::colorToName(( *colorIt ).first ) );
   }
 }
 
@@ -151,7 +151,7 @@ bool QgsColorSchemeList::importColorsFromGpl( QFile &file )
   QgsNamedColorList::const_iterator colorIt = importedColors.constBegin();
   for ( ; colorIt != importedColors.constEnd(); ++colorIt )
   {
-    mModel->addColor(( *colorIt ).first, ( *colorIt ).second );
+    mModel->addColor(( *colorIt ).first, !( *colorIt ).second.isEmpty() ? ( *colorIt ).second : QgsSymbolLayerV2Utils::colorToName(( *colorIt ).first ) );
   }
 
   return true;
@@ -422,7 +422,7 @@ bool QgsColorSchemeModel::dropMimeData( const QMimeData *data, Qt::DropAction ac
     QModelIndex colorIdx = index( beginRow, 0, QModelIndex() );
     setData( colorIdx, QVariant(( *colorIt ).first ) );
     QModelIndex labelIdx = index( beginRow, 1, QModelIndex() );
-    setData( labelIdx, QVariant(( *colorIt ).second ) );
+    setData( labelIdx, !( *colorIt ).second.isEmpty() ? ( *colorIt ).second : QgsSymbolLayerV2Utils::colorToName(( *colorIt ).first ) );
     beginRow++;
   }