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MovieService.go
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MovieService.go
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package edit
import (
"time"
"github.com/inkyblackness/hacked/ss1/content/audio"
"github.com/inkyblackness/hacked/ss1/content/movie"
"github.com/inkyblackness/hacked/ss1/content/text"
"github.com/inkyblackness/hacked/ss1/edit/media"
"github.com/inkyblackness/hacked/ss1/resource"
)
// MovieService provides read/write functionality.
type MovieService struct {
cp text.Codepage
movieViewer media.MovieViewerService
movieSetter media.MovieSetterService
}
// NewMovieService returns a new instance based on given accessor.
func NewMovieService(codepage text.Codepage,
movieViewer media.MovieViewerService, movieSetter media.MovieSetterService) MovieService {
return MovieService{
cp: codepage,
movieViewer: movieViewer,
movieSetter: movieSetter,
}
}
// RestoreFunc creates a snapshot of the current movie and returns a function to restore it.
func (service MovieService) RestoreFunc(key resource.Key) func(setter media.MovieBlockSetter) {
oldContainer, _ := service.movieViewer.Container(key)
isModified := service.movieViewer.Modified(key)
return func(setter media.MovieBlockSetter) {
if isModified {
service.movieSetter.Set(setter, key, oldContainer)
} else {
service.movieSetter.Remove(setter, key)
}
}
}
// Remove erases the movie from the resources.
func (service MovieService) Remove(setter media.MovieBlockSetter, key resource.Key) {
service.movieSetter.Remove(setter, key)
}
// SizeWarning returns true if the given movie is larger than the underlying archive would support.
func (service MovieService) SizeWarning(key resource.Key) bool {
return service.movieViewer.SizeWarning(key)
}
// Video returns the video component of identified movie.
func (service MovieService) Video(key resource.Key) []movie.Scene {
return service.movieViewer.Video(key)
}
// MoveSceneEarlier moves the given scene one step earlier.
func (service MovieService) MoveSceneEarlier(setter media.MovieBlockSetter, key resource.Key, scene int) {
service.swapScenes(setter, key, scene, scene-1)
}
// MoveSceneLater moves the given scene one step later.
func (service MovieService) MoveSceneLater(setter media.MovieBlockSetter, key resource.Key, scene int) {
service.swapScenes(setter, key, scene, scene+1)
}
func (service MovieService) swapScenes(setter media.MovieBlockSetter, key resource.Key, sceneA, sceneB int) {
baseContainer := service.getBaseContainer(key)
if (sceneA < 0) || (sceneA >= (len(baseContainer.Video.Scenes))) {
return
}
if (sceneB < 0) || (sceneB >= (len(baseContainer.Video.Scenes))) {
return
}
scenes := make([]movie.HighResScene, len(baseContainer.Video.Scenes))
copy(scenes, baseContainer.Video.Scenes)
scenes[sceneA] = baseContainer.Video.Scenes[sceneB]
scenes[sceneB] = baseContainer.Video.Scenes[sceneA]
baseContainer.Video.Scenes = scenes
service.movieSetter.Set(setter, key, baseContainer)
}
// AddScene adds the given scene at the end of the movie.
func (service MovieService) AddScene(setter media.MovieBlockSetter, key resource.Key, scene movie.HighResScene) {
baseContainer := service.getBaseContainer(key)
baseContainer.Video.Scenes = append(baseContainer.Video.Scenes, scene)
service.movieSetter.Set(setter, key, baseContainer)
}
// RemoveScene cuts out the given scene from the movie.
func (service MovieService) RemoveScene(setter media.MovieBlockSetter, key resource.Key, scene int) {
baseContainer := service.getBaseContainer(key)
if (scene < 0) || (scene >= len(baseContainer.Video.Scenes)) {
return
}
scenes := make([]movie.HighResScene, len(baseContainer.Video.Scenes)-1)
copy(scenes[0:scene], baseContainer.Video.Scenes[0:scene])
copy(scenes[scene:], baseContainer.Video.Scenes[scene+1:])
baseContainer.Video.Scenes = scenes
service.movieSetter.Set(setter, key, baseContainer)
}
// SetSceneFramesDisplayTime sets the display time for each frame.
func (service MovieService) SetSceneFramesDisplayTime(setter media.MovieBlockSetter, key resource.Key,
scene int, displayTime time.Duration) {
baseContainer := service.getBaseContainer(key)
if (scene < 0) || (scene >= len(baseContainer.Video.Scenes)) {
return
}
baseContainer.Video.Scenes[scene] = baseContainer.Video.Scenes[scene].WithFrameDisplayTime(displayTime)
service.movieSetter.Set(setter, key, baseContainer)
}
// Audio returns the audio component of identified movie.
func (service MovieService) Audio(key resource.Key) audio.L8 {
return service.movieViewer.Audio(key)
}
// SetAudio sets the audio component of identified movie.
func (service MovieService) SetAudio(setter media.MovieBlockSetter, key resource.Key, soundData audio.L8) {
baseContainer := service.getBaseContainer(key)
baseContainer.Audio.Sound = soundData
service.movieSetter.Set(setter, key, baseContainer)
}
// Subtitles returns the subtitles associated with the given key.
func (service MovieService) Subtitles(key resource.Key, language resource.Language) movie.SubtitleList {
return service.movieViewer.Subtitles(key, language)
}
// SetSubtitles sets the subtitles of identified movie in given language.
func (service MovieService) SetSubtitles(setter media.MovieBlockSetter, key resource.Key,
language resource.Language, subtitles movie.SubtitleList) {
baseContainer := service.getBaseContainer(key)
baseContainer.Subtitles.PerLanguage[language] = subtitles
service.movieSetter.Set(setter, key, baseContainer)
}
func (service MovieService) getBaseContainer(key resource.Key) movie.Container {
container, err := service.movieViewer.Container(key)
if err != nil {
container = movie.Container{
Audio: movie.Audio{Sound: audio.L8{SampleRate: 22050}},
Video: movie.Video{
Width: movie.HighResDefaultWidth,
Height: movie.HighResDefaultHeight,
},
}
}
return container
}