Restructure how tool data is stored

src/DrawingProgram/DrawingProgramToolBase.hpp

@@ -0,0 +1,33 @@
+#pragma once
+#include <include/core/SkCanvas.h>
+#include "../DrawData.hpp"
+
+class DrawingProgram;
+
+enum class DrawingProgramToolType : int {
+    BRUSH = 0,
+    ERASER,
+    LASSOSELECT,
+    RECTSELECT,
+    RECTANGLE,
+    ELLIPSE,
+    TEXTBOX,
+    INKDROPPER,
+    SCREENSHOT,
+    EDIT
+};
+
+class DrawingProgramToolBase {
+    public:
+        DrawingProgramToolBase(DrawingProgram& initDrawP);
+        virtual DrawingProgramToolType get_type() = 0;
+        virtual void gui_toolbox() = 0;
+        virtual void tool_update() = 0;
+        virtual void draw(SkCanvas* canvas, const DrawData& drawData) = 0;
+        virtual void reset_tool() = 0;
+        virtual bool prevent_undo_or_redo() = 0;
+        virtual ~DrawingProgramToolBase(); 
+        static std::unique_ptr<DrawingProgramToolBase> allocate_tool_type(DrawingProgram& drawP, DrawingProgramToolType t);
+    protected:
+        DrawingProgram& drawP;
+};