Merge pull request #101376 from ryevdokimov/movement-threshold-rotation-gizmo

Add movement threshold before activating viewport rotation gizmo dragging

editor/plugins/node_3d_editor_plugin.cpp

@@ -425,7 +425,9 @@ void ViewportRotationControl::_process_click(int p_index, Vector2 p_position, bo
 }
 
 void ViewportRotationControl::_process_drag(Ref<InputEventWithModifiers> p_event, int p_index, Vector2 p_position, Vector2 p_relative_position) {
-	if (orbiting_index == p_index && gizmo_activated) {
+	Point2 mouse_pos = get_local_mouse_position();
+	const bool movement_threshold_passed = original_mouse_pos.distance_to(mouse_pos) > 4 * EDSCALE;
+	if (orbiting_index == p_index && gizmo_activated && movement_threshold_passed) {
 		if (Input::get_singleton()->get_mouse_mode() == Input::MOUSE_MODE_VISIBLE) {
 			Input::get_singleton()->set_mouse_mode(Input::MOUSE_MODE_CAPTURED);
 			orbiting_mouse_start = p_position;
@@ -460,6 +462,7 @@ void ViewportRotationControl::gui_input(const Ref<InputEvent> &p_event) {
 			_process_click(100, mb->get_position(), mb->is_pressed());
 			if (mb->is_pressed()) {
 				gizmo_activated = true;
+				original_mouse_pos = get_local_mouse_position();
 				grab_focus();
 			}
 		} else if (mb->get_button_index() == MouseButton::RIGHT) {

editor/plugins/node_3d_editor_plugin.h

@@ -82,6 +82,7 @@ class ViewportRotationControl : public Control {
 	Vector<Color> axis_colors;
 	Vector<int> axis_menu_options;
 	Vector2i orbiting_mouse_start;
+	Point2 original_mouse_pos;
 	int orbiting_index = -1;
 	int focused_axis = -2;
 	bool gizmo_activated = false;