diff options
author | Paul Davis <paul@linuxaudiosystems.com> | 2014-04-16 04:16:56 -0400 |
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committer | Paul Davis <paul@linuxaudiosystems.com> | 2014-04-16 04:16:56 -0400 |
commit | 5668eea2a3b31352698232127c5876a0cd9f2925 (patch) | |
tree | e36331d71e3051a0cfd075d7e39dba6e39fc9a48 /gtk2_ardour/editor_canvas.cc | |
parent | 8b93576c180a62539baad83d2846b6da192eea6a (diff) |
add a transparent rect that is always located at the bottom of the track canvas
This gives us an event/drag-n-drop/click target for things "at the bottom"
Diffstat (limited to 'gtk2_ardour/editor_canvas.cc')
-rw-r--r-- | gtk2_ardour/editor_canvas.cc | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/gtk2_ardour/editor_canvas.cc b/gtk2_ardour/editor_canvas.cc index 98feae94c8..3b9c5dea37 100644 --- a/gtk2_ardour/editor_canvas.cc +++ b/gtk2_ardour/editor_canvas.cc @@ -212,6 +212,13 @@ Editor::initialize_canvas () logo_item->lower_to_bottom (); } + + _canvas_bottom_rect = new ArdourCanvas::Rectangle (_track_canvas->root(), ArdourCanvas::Rect (0.0, 0.0, max_canvas_coordinate, 20)); + /* this thing is transparent */ + _canvas_bottom_rect->set_fill (false); + _canvas_bottom_rect->set_outline (false); + _canvas_bottom_rect->Event.connect (sigc::mem_fun (*this, &Editor::canvas_bottom_rect_event)); + /* these signals will initially be delivered to the canvas itself, but if they end up remaining unhandled, they are passed to Editor-level handlers. */ @@ -316,12 +323,24 @@ Editor::reset_controls_layout_width () void Editor::reset_controls_layout_height (int32_t h) { + /* ensure that the rect that represents the "bottom" of the canvas + * (the drag-n-drop zone) is, in fact, at the bottom. + */ + + _canvas_bottom_rect->set_position (ArdourCanvas::Duple (0, h)); + + /* track controls layout must span the full height of "h" (all tracks) + * plus the bottom rect. + */ + + h += _canvas_bottom_rect->height (); + /* set the height of the scrollable area (i.e. the sum of all contained widgets) + * for the controls layout. The size request is set elsewhere. */ controls_layout.property_height() = h; - /* size request is set elsewhere, see ::track_canvas_allocate() */ } bool |