def OnPreviewVideo(self, evt):
h = TrackList.background_size()['height']
max_height = 480
scale = min(1, max_height / (h or max_height))
wx.GetApp().RunInBackground(mix.preview_thread,
TrackList.all_tracks(),
**TrackList.background_size(),
scale=scale)
def _updateLayout(self, tracks, force=False):
old_tracks = set(self.m_layoutPreview.GetTrackNames())
needs_layout = set(old_tracks) != set(t['path'] for t in tracks)
# Update the layout preview
self.m_layoutPreview.SetTracks(tracks)
self.m_layoutPreview.SetBackgroundSize(**TrackList.background_size())
# New tracks means run the layout again
if tracks and (needs_layout or force):
layout = TrackList.as_layout(self.video_width / self.video_height,
self.video_height)
TrackList.update_from_layout(layout, self.video_width,
self.video_height)
def OnExportShotcut(self, evt):
file = dialogs.file_dialog(self, message="Save a file",
wildcard="Shotcut Files (*.mlt)|.mlt",
style=wx.FD_SAVE | wx.FD_OVERWRITE_PROMPT)
if file:
tracks = TrackList.as_mlt_tracks()
# Folks usually include an image for the background, so add a blank track
# to make that possible
tracks.append({'blank_track': True})
# Shotcut puts the first track at the bottom, so reverse the order
tracks.reverse()
with open(file, 'w') as f:
f.write(mlt.xml.write_file(tracks, **TrackList.background_size()))
def OnPreviewAudio(self, evt):
wx.GetApp().RunInBackground(mix.preview_thread,
TrackList.all_tracks(),
**TrackList.background_size(),
audio_only=True)