diff options
| author | Paul Davis <paul@linuxaudiosystems.com> | 2014-05-20 23:08:15 -0400 |
|---|---|---|
| committer | Paul Davis <paul@linuxaudiosystems.com> | 2014-06-03 16:10:27 -0400 |
| commit | 6019f06bdf919e1d95dd0912116cdec0834af8db (patch) | |
| tree | be8d2e41e692c2e8a572f531b546efde67b1503f /gtk2_ardour/verbose_cursor.cc | |
| parent | fc9e6651dd804672822e06cbd4092c043dc8406d (diff) | |
different approach to independent scrolling, involving ArdourCanvas::ScrollGroup
The idea now is that a scroll group item can be added to the canvas which will causes its children to scroll in either or both
directions (horizontal or vertical). There are few complications: the position() of the ScrollGroup is ambiguous depending
on whether you want it with scroll taken into account or not, so Item::canvas_position() was added, which defaults to
the same value as Item::position() but is overridden by ScrollGroup to return the position independent of scrolling. This
method is used when translating between item/canvas/window coordinate systems.
Note that the basic idea is that we MOVE the scroll group when a scroll happens. This mirrors what happens in the GnomeCanvas,
where Nick Mainsbridge came up with a great idea that allowed unification of the time bar and track canvases.
Diffstat (limited to 'gtk2_ardour/verbose_cursor.cc')
| -rw-r--r-- | gtk2_ardour/verbose_cursor.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gtk2_ardour/verbose_cursor.cc b/gtk2_ardour/verbose_cursor.cc index 497fb12152..e993583127 100644 --- a/gtk2_ardour/verbose_cursor.cc +++ b/gtk2_ardour/verbose_cursor.cc @@ -43,7 +43,7 @@ VerboseCursor::VerboseCursor (Editor* editor) , _xoffset (0) , _yoffset (0) { - _canvas_item = new ArdourCanvas::Text (_editor->_track_canvas->root()); + _canvas_item = new ArdourCanvas::Text (_editor->get_track_canvas_group()); CANVAS_DEBUG_NAME (_canvas_item, "verbose canvas cursor"); _canvas_item->set_ignore_events (true); _canvas_item->set_font_description (get_font_for_style (N_("VerboseCanvasCursor"))); |