Add path rendering.

src/rendering/visual_elements/svg/SvgPainter.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <memory>
+
+class SvgDocument;
+class SvgShapeElement;
+class XmlAttribute;
+
+class Scene;
+class SceneModel;
+class SceneText;
+
+class Transform;
+
+class SvgPainter
+{
+public:
+    std::unique_ptr<SvgDocument> paint(Scene* scene, double width = 800.0, double height = 800.0) const;
+
+private:
+    void paintMesh(SvgDocument* document, SceneModel* model, bool showOutline = false) const;
+
+    void paintPrimitive(SvgDocument* document, SceneModel* model) const;
+
+    void paintRect(SvgDocument* document, SceneModel* model) const;
+
+    void paintCircle(SvgDocument* document, SceneModel* model) const;
+
+    void paintPath(SvgDocument* document, SceneModel* model) const;
+
+    void paintText(SvgDocument* document, SceneText* model) const;
+
+    void setStyle(SceneModel* model, SvgShapeElement* element) const;
+
+    std::unique_ptr<XmlAttribute> toTransform(const Transform& transform) const;
+};