diff options
| author | Paul Davis <paul@linuxaudiosystems.com> | 2007-02-20 22:32:32 +0000 |
|---|---|---|
| committer | Paul Davis <paul@linuxaudiosystems.com> | 2007-02-20 22:32:32 +0000 |
| commit | 30d4fee414a2a8f5d7b45415975638937812f6a6 (patch) | |
| tree | bab55951ff5bf2c7c7b6165c673e10a322d71e36 /gtk2_ardour/editor_mixer.cc | |
| parent | 326cd24c12d8b11402ef0c10507ecbdea8f86d7f (diff) | |
new (commented) continuous scroll from ben; fix for max() issues in MCP code
git-svn-id: svn://localhost/ardour2/trunk@1481 d708f5d6-7413-0410-9779-e7cbd77b26cf
Diffstat (limited to 'gtk2_ardour/editor_mixer.cc')
| -rw-r--r-- | gtk2_ardour/editor_mixer.cc | 38 |
1 files changed, 16 insertions, 22 deletions
diff --git a/gtk2_ardour/editor_mixer.cc b/gtk2_ardour/editor_mixer.cc index ab1e54aa5b..f7fc867ab4 100644 --- a/gtk2_ardour/editor_mixer.cc +++ b/gtk2_ardour/editor_mixer.cc @@ -182,6 +182,9 @@ Editor::update_current_screen () if (frame != last_update_frame) { + +#ifdef CONTINUOUS_SCROLL +#ifndef CONTINUOUS_SCROLL if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) { if (session->transport_speed() < 0) { @@ -197,35 +200,26 @@ Editor::update_current_screen () playhead_cursor->set_position (frame); -#undef CONTINUOUS_SCROLL -#ifdef CONTINUOUS_SCROLL - +#else // CONTINUOUS_SCROLL + /* don't do continuous scroll till the new position is in the rightmost quarter of the editor canvas */ -#if 0 - if (frame > leftmost_frame + (3 * current_page_frames() / 4)) { - - if (frame > playhead_cursor->current_frame) { - nframes_t delta = frame - playhead_cursor->current_frame; - horizontal_adjustment.set_value (horizontal_adjustment.get_value() + (delta/frames_per_unit)); + if (session->transport_speed()) { + double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit; + if (target <= 0.0) target = 0.0; + if ( fabs(target - current) < current_page_frames()/frames_per_unit ) { + target = (target * 0.15) + (current * 0.85); } else { - nframes_t delta = playhead_cursor->current_frame - frame; - horizontal_adjustment.set_value (horizontal_adjustment.get_value() - (delta/frames_per_unit)); + /* relax */ } + //printf("frame: %d, cpf: %d, fpu: %6.6f, current: %6.6f, target : %6.6f\n", frame, current_page_frames(), frames_per_unit, current, target ); + current = target; + horizontal_adjustment.set_value ( current ); } -#else - if (!currentInitialized) { - current = (frame - current_page_frames()/2) / frames_per_unit; - currentInitialized = 1; - } - - double target = (frame - current_page_frames()/2) / frames_per_unit; - target = (target * 0.1) + (current * 0.9); - horizontal_adjustment.set_value ( target ); - current = target; -#endif + + playhead_cursor->set_position (frame); #endif // CONTINUOUS_SCROLL |