[processing] add missing icons for the geometry tools menu

Author: nirvn

images/images.qrc

@@ -77,11 +77,17 @@
         <file>splash/splash.png</file>
         <file>composer/missing_image.svg</file>
         <file>themes/default/algorithms/mAlgorithmBuffer.svg</file>
+        <file>themes/default/algorithms/mAlgorithmCentroids.svg</file>
         <file>themes/default/algorithms/mAlgorithmClip.svg</file>
+        <file>themes/default/algorithms/mAlgorithmCollect.svg</file>
         <file>themes/default/algorithms/mAlgorithmConvexHull.svg</file>
         <file>themes/default/algorithms/mAlgorithmDifference.svg</file>
         <file>themes/default/algorithms/mAlgorithmDissolve.svg</file>
+        <file>themes/default/algorithms/mAlgorithmExtractVertices.svg</file>
         <file>themes/default/algorithms/mAlgorithmIntersect.svg</file>
+        <file>themes/default/algorithms/mAlgorithmMultiToSingle.svg</file>
+        <file>themes/default/algorithms/mAlgorithmSimplify.svg</file>
+        <file>themes/default/algorithms/mAlgorithmSingleToMulti.svg</file>
         <file>themes/default/algorithms/mAlgorithmSymmetricalDifference.svg</file>
         <file>themes/default/algorithms/mAlgorithmUnion.svg</file>
         <file>themes/default/cap_flat.svg</file>

images/themes/default/algorithms/mAlgorithmCentroids.svg

@@ -34,6 +34,8 @@ class QgsCentroidAlgorithm : public QgsProcessingFeatureBasedAlgorithm
   public:
 
     QgsCentroidAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmCentroids.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmCentroids.svg" ) ); }
     QString name() const override;
     QString displayName() const override;
     QStringList tags() const override;

images/themes/default/algorithms/mAlgorithmCollect.svg

@@ -72,6 +72,8 @@ class QgsCollectAlgorithm : public QgsCollectorAlgorithm
   public:
 
     QgsCollectAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmCollect.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmCollect.svg" ) ); }
     void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
     QString name() const override;
     QString displayName() const override;

images/themes/default/algorithms/mAlgorithmExtractVertices.svg

@@ -34,6 +34,8 @@ class QgsExtractVerticesAlgorithm : public QgsProcessingAlgorithm
   public:
 
     QgsExtractVerticesAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmExtractVertices.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmExtractVertices.svg" ) ); }
     void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
     QString name() const override;
     QString displayName() const override;

images/themes/default/algorithms/mAlgorithmMultiToSingle.svg

@@ -34,6 +34,8 @@ class QgsMultipartToSinglepartAlgorithm : public QgsProcessingFeatureBasedAlgori
   public:
 
     QgsMultipartToSinglepartAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmMultiToSingle.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmMultiToSingle.svg" ) ); }
     QString name() const override;
     QString displayName() const override;
     QString outputName() const override;

images/themes/default/algorithms/mAlgorithmSimplify.svg

@@ -34,6 +34,8 @@ class QgsPointOnSurfaceAlgorithm : public QgsProcessingFeatureBasedAlgorithm
   public:
 
     QgsPointOnSurfaceAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmCentroids.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmCentroids.svg" ) ); }
     QString name() const override;
     QString displayName() const override;
     QStringList tags() const override;

images/themes/default/algorithms/mAlgorithmSingleToMulti.svg

@@ -35,6 +35,8 @@ class QgsPromoteToMultipartAlgorithm : public QgsProcessingFeatureBasedAlgorithm
   public:
 
     QgsPromoteToMultipartAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmSingleToMulti.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmSingleToMulti.svg" ) ); }
     QString name() const override;
     QString displayName() const override;
     QStringList tags() const override;

src/analysis/processing/qgsalgorithmcentroid.h

@@ -35,6 +35,8 @@ class QgsSimplifyAlgorithm : public QgsProcessingFeatureBasedAlgorithm
   public:
 
     QgsSimplifyAlgorithm() = default;
+    QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmSimplify.svg" ) ); }
+    QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmSimplify.svg" ) ); }
     QString name() const override;
     QString displayName() const override;
     QStringList tags() const override;