a whole lotta work!!

- refactoring
- completely changed the tooling (adding elements)
- better re-use for more stable editing
- new elements
- ui adjustments
- LINT for stair-editing
- many more changes

mapview/2D/MV2DElement.h

@@ -0,0 +1,75 @@
+#ifndef MV2DELEMENT_H
+#define MV2DELEMENT_H
+
+#include <QKeyEvent>
+
+#include "../2D/MapView2D.h"
+#include "../2D/Painter.h"
+
+#include <Indoor/geo/BBox2.h>
+#include <Indoor/geo/Line2.h>
+
+/**
+ * represents one drawable, selectable, editable, ...
+ * element shown within the MapView2D
+ */
+class MV2DElement {
+
+private:
+
+	bool _focused = false;
+
+public:
+
+	/** dtor */
+	virtual ~MV2DElement() {;}
+
+
+	/** get the element's 2D bounding box */
+	virtual BBox2 getBoundingBox() const = 0;
+
+	/** get the element's minimal distance (nearest whatsoever) to the given point */
+	virtual float getMinDistanceXY(const Point2 p) const = 0;
+
+	/** repaint me */
+	virtual void paint(Painter& p) = 0;
+
+
+
+	/** got focus */
+	void focus() {
+		_focused = true;
+		onFocus();
+	}
+
+	/** lost focus */
+	void unfocus() {
+		_focused = false;
+		onUnfocus();
+	}
+
+	bool hasFocus() {return _focused;}
+
+
+	/** mouse pressed at the given point */
+	virtual void mousePressed(MapView2D* v, const Point2 p) {(void) v; (void) p;}
+
+	/** mouse moved to the given point */
+	virtual void mouseMove(MapView2D* v, const Point2 p) {(void) v; (void) p;}
+
+	/** mouse released */
+	virtual void mouseReleased(MapView2D* v, const Point2 p) {(void) v; (void) p;}
+
+	/** key pressed. NOTE: return true when consumed. */
+	virtual bool keyPressEvent(MapView2D* v, QKeyEvent* e) {(void) v; (void) e; return false;}
+
+
+protected:
+
+	virtual void onFocus() = 0;
+
+	virtual void onUnfocus() = 0;
+
+};
+
+#endif // MV2DELEMENT_H