feat: polyline drawing

src/application/applicationstate.h

@@ -1,7 +1,29 @@
+#ifndef VKTR_APPSTATE_H
+#define VKTR_APPSTATE_H
+
+#include "../ui/uicontroller.h"
+#include "../core/primitives.h"
+#include "src/core/raster.h"
+#include "../ui/vektorcanvas.h"
+
 typedef enum VektorAppTool {
-    CircleTool
+    VektorLineTool
 } VektorAppTool;
 
 typedef struct VektorAppState {
     VektorAppTool selectedTool;
-} VektorAppState;
+    VektorPrimitive* selectedPrimitive;
+
+    // Logic space
+    VektorPrimitiveBuffer* primitiveBuffer;
+    // Pixel space
+    VektorFramebuffer* frameBuffer;
+    // View space
+    VektorCanvas* canvas;
+
+} VektorAppState;
+
+void vektor_appstate_new(VektorWidgetState* wstate, VektorAppState* stateOut);
+void vektor_appstate_canvas_click(VektorAppState* state, double x, double y);
+
+#endif