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Aegisub
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Implement the video position marker in the audio display 

Originally committed to SVN as r5728.
This commit is contained in:
Thomas Goyne 2011-10-10 21:04:23 +00:00
parent a260a998b3
commit 7dfaa6427c
2 changed files with 94 additions and 0 deletions
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91
aegisub/src/audio_controller.cpp
View File

@ -141,6 +141,91 @@ public:
}
};
class VideoPositionMarker : public AudioMarker {
agi::signal::Connection colour_changed;
int64_t position;
wxPen style;
void OnColourChanged(agi::OptionValue const& opt)
{
style = wxPen(lagi_wxColour(opt.GetColour()), 1);
}
public:
VideoPositionMarker()
: colour_changed(OPT_SUB("Colour/Audio Display/Play Cursor", &VideoPositionMarker::OnColourChanged, this))
, position(-1)
{
OnColourChanged(*OPT_GET("Colour/Audio Display/Play Cursor"));
}
void SetPosition(int64_t new_pos)
{
position = new_pos;
}
int64_t GetPosition() const { return position; }
FeetStyle GetFeet() const { return Feet_None; }
bool CanSnap() const { return true; }
wxPen GetStyle() const { return style; }
operator int64_t() const { return position; }
};
class VideoPositionMarkerProvider : public AudioMarkerProvider {
AudioController *ac;
VideoContext *vc;
VideoPositionMarker marker;
agi::signal::Connection video_seek_slot;
agi::signal::Connection enable_opt_changed_slot;
void Update(int frame_number)
{
if (frame_number == -1)
{
marker.SetPosition(-1);
}
else
{
marker.SetPosition(ac->SamplesFromMilliseconds(vc->TimeAtFrame(frame_number)));
}
AnnounceMarkerMoved();
}
void OptChanged(agi::OptionValue const& opt)
{
if (opt.GetBool())
{
video_seek_slot.Unblock();
Update(vc->GetFrameN());
}
else
{
video_seek_slot.Block();
Update(-1);
}
}
public:
VideoPositionMarkerProvider(agi::Context *c)
: ac(c->audioController)
, vc(c->videoController)
, video_seek_slot(vc->AddSeekListener(&VideoPositionMarkerProvider::Update, this))
, enable_opt_changed_slot(OPT_SUB("Audio/Display/Draw/Video Position", &VideoPositionMarkerProvider::OptChanged, this))
{
OptChanged(*OPT_GET("Audio/Display/Draw/Video Position"));
}
void GetMarkers(const SampleRange &range, AudioMarkerVector &out) const
{
if (range.contains(marker))
{
out.push_back(&marker);
}
}
};
AudioController::AudioController(agi::Context *context)
: context(context)
, subtitle_save_slot(context->ass->AddFileSaveListener(&AudioController::OnSubtitlesSave, this))
@ -303,7 +388,12 @@ void AudioController::OpenAudio(const wxString &url)
// the audio controller is created
keyframes_marker_provider.reset(new AudioMarkerProviderKeyframes(this, context));
keyframes_marker_provider->AddMarkerMovedListener(std::tr1::bind(std::tr1::ref(AnnounceMarkerMoved)));
}
if (!video_position_marker_provider.get())
{
video_position_marker_provider.reset(new VideoPositionMarkerProvider(context));
video_position_marker_provider->AddMarkerMovedListener(std::tr1::bind(std::tr1::ref(AnnounceMarkerMoved)));
}
// Tell listeners about this.
@ -465,6 +555,7 @@ void AudioController::GetMarkers(const SampleRange &range, AudioMarkerVector &ma
{
/// @todo Find all sources of markers
if (keyframes_marker_provider.get()) keyframes_marker_provider->GetMarkers(range, markers);
if (video_position_marker_provider.get()) video_position_marker_provider->GetMarkers(range, markers);
if (timing_controller.get()) timing_controller->GetMarkers(range, markers);
}

3
aegisub/src/audio_controller.h
View File

@ -213,6 +213,9 @@ class AudioController : public wxEvtHandler, public AudioMarkerProvider, public
/// Provide keyframe data for audio displays
agi::scoped_ptr<AudioMarkerProvider> keyframes_marker_provider;
/// Provider current video position data for audio display
agi::scoped_ptr<AudioMarkerProvider> video_position_marker_provider;
/// The URL of the currently open audio, if any
wxString audio_url;