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Fix issues with audio auto scrolling and lines longer than the display

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Clicking on the audio display (to change line timing) now never scrolls
the display, rather than jumping around if the line is too long to fit
on the display.

Dragged markers are now always kept visible in the display, even if auto
scroll is off.

Originally committed to SVN as r6541.
This commit is contained in:
Thomas Goyne 2012-03-07 22:41:03 +00:00
parent 9f6bb17379
commit c84c9fe6b8
1 changed files with 24 additions and 1 deletions
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25
aegisub/src/audio_display.cpp
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@ -502,6 +502,9 @@ public:
// We lose the marker drag if the button used to initiate it goes up
return !event.ButtonUp(button_used);
}
/// Get the position in milliseconds of this group of markers
int GetPosition() const { return markers.front()->GetPosition(); }
};
class AudioStyleRangeMerger : public AudioRenderingStyleRanges {
@ -1090,6 +1093,7 @@ void AudioDisplay::OnMouseEvent(wxMouseEvent& event)
SetCursor(wxNullCursor);
}
int old_scroll_pos = scroll_left;
if (event.LeftDown() || event.RightDown())
{
int timepos = TimeFromRelativeX(mousepos.x);
@ -1097,6 +1101,9 @@ void AudioDisplay::OnMouseEvent(wxMouseEvent& event)
timing->OnLeftClick(timepos, event.CmdDown(), drag_sensitivity, snap_sensitivity) :
timing->OnRightClick(timepos, event.CmdDown(), drag_sensitivity, snap_sensitivity);
// Clicking should never result in the audio display scrolling
ScrollPixelToLeft(old_scroll_pos);
if (markers.size())
{
RemoveTrackCursor();
@ -1222,7 +1229,23 @@ void AudioDisplay::OnSelectionChanged()
TimeRange sel(controller->GetPrimaryPlaybackRange());
scrollbar->SetSelection(AbsoluteXFromTime(sel.begin()), AbsoluteXFromTime(sel.length()));
if (OPT_GET("Audio/Auto/Scroll")->GetBool())
if (audio_marker)
{
int rel_x = RelativeXFromTime(audio_marker->GetPosition());
int width = GetClientSize().GetWidth();
// If the dragged object is outside the visible area, scroll it into
// view with a 5% margin
if (rel_x < 0)
{
ScrollBy(rel_x - width / 20);
}
else if (rel_x >= width)
{
ScrollBy(rel_x - width + width / 20);
}
}
else if (OPT_GET("Audio/Auto/Scroll")->GetBool())
{
ScrollTimeRangeInView(sel);
}