Merge pull request #7 from fabns-nano/codex/expose-setbackgroundcolor-method

Add setBackgroundColor support

Author: g-abilio

include/QtNodes/internal/NodeDelegateModel.hpp

@@ -9,6 +9,7 @@
 #include "Export.hpp"
 #include "NodeData.hpp"
 #include "NodeStyle.hpp"
+#include <QtGui/QColor>
 #include "Serializable.hpp"
 
 namespace QtNodes {
@@ -102,6 +103,9 @@ class NODE_EDITOR_PUBLIC NodeDelegateModel
 
     void setNodeStyle(NodeStyle const &style);
 
+    /// Convenience helper to change the node background color.
+    void setBackgroundColor(QColor const &color);
+
 public:
     virtual void setInData(std::shared_ptr<NodeData> nodeData, PortIndex const portIndex) = 0;
 

include/QtNodes/internal/NodeStyle.hpp

@@ -26,6 +26,12 @@ class NODE_EDITOR_PUBLIC NodeStyle : public Style
 
     QJsonObject toJson() const override;
 
+    /// Set uniform background color for the node.
+    void setBackgroundColor(QColor const &color);
+
+    /// Current uniform background color.
+    QColor backgroundColor() const;
+
 public:
     QColor NormalBoundaryColor;
     QColor SelectedBoundaryColor;

include/QtNodes/internal/UndoCommands.hpp

@@ -3,9 +3,9 @@
 #include "Definitions.hpp"
 #include "Export.hpp"
 
+#include <QUndoCommand>
 #include <QtCore/QJsonObject>
 #include <QtCore/QPointF>
-#include <QUndoCommand>
 
 #include <unordered_set>
 

src/NodeDelegateModel.cpp

@@ -61,4 +61,9 @@ void NodeDelegateModel::setNodeProcessingStatus(NodeProcessingStatus status)
     _processingStatus = status;
 }
 
+void NodeDelegateModel::setBackgroundColor(QColor const &color)
+{
+    _nodeStyle.setBackgroundColor(color);
+}
+
 } // namespace QtNodes

src/NodeStyle.cpp

@@ -157,3 +157,16 @@ QJsonObject NodeStyle::toJson() const
 
     return root;
 }
+
+void NodeStyle::setBackgroundColor(QColor const &color)
+{
+    GradientColor0 = color;
+    GradientColor1 = color;
+    GradientColor2 = color;
+    GradientColor3 = color;
+}
+
+QColor NodeStyle::backgroundColor() const
+{
+    return GradientColor0;
+}