Heuraka! Nightmarish rework of DnD code.

Allow to drag multiple regions from different tracks
to/from the dropzone.

Busses & Automation-lanes are ignored, as are
hidden tracks.

Any region may serve as mouse drag anchor.

fixes #6172 and #6176

1 files changed, 6 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_drag.h b/gtk2_ardour/editor_drag.h
index ccfd58c714..e6f800cb52 100644
--- a/gtk2_ardour/editor_drag.h
+++ b/gtk2_ardour/editor_drag.h
@@ -296,6 +296,7 @@ protected:
 
 	int _visible_y_low;
 	int _visible_y_high;
+	uint32_t _ntracks;
 
 	friend class DraggingView;
 
@@ -335,6 +336,11 @@ protected:
 	int _last_pointer_time_axis_view;
 	double _last_pointer_layer;
 	bool _single_axis;
+
+private:
+	uint32_t _ndropzone;
+	uint32_t _pdropzone;
+	uint32_t _ddropzone;
 };