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/tools/ToolMapZoom.h

@@ -0,0 +1,37 @@
+#ifndef TOOLMAPZOOM_H
+#define TOOLMAPZOOM_H
+
+#include "Tool.h"
+#include "../MapView2D.h"
+
+/**
+ * this tool allows zooming in and out of the map
+ */
+class ToolMapZoom : public Tool {
+
+public:
+
+	const std::string getName() const override {
+		return "MapZoom";
+	}
+
+	virtual bool wheelEvent(MapView2D* m, QWheelEvent* e) override {
+
+		Scaler& s = m->getScaler();
+
+		if (e->delta() < 0) {
+			s.setScale(s.getScale() * 0.5);
+		} else {
+			s.setScale(s.getScale() / 0.5);
+		}
+
+		if (s.getScale() > 1000) {s.setScale(1000);}
+		if (s.getScale() < 5) {s.setScale(5);}
+
+		return true;
+
+	}
+
+};
+
+#endif // TOOLMAPZOOM_H