Init() private static method

private static Init ( ) : void
return void
        public override void OnPreviewSettings()
        {
            if (AudioClipInspector.s_DefaultIcon == null)
            {
                AudioClipInspector.Init();
            }
            AudioClip audioClip = this.target as AudioClip;

            using (new EditorGUI.DisabledScope(AudioUtil.IsMovieAudio(audioClip)))
            {
                bool flag = base.targets.Length > 1;
                using (new EditorGUI.DisabledScope(flag))
                {
                    AudioClipInspector.m_bAutoPlay = (!flag && AudioClipInspector.m_bAutoPlay);
                    AudioClipInspector.m_bAutoPlay = (PreviewGUI.CycleButton((!AudioClipInspector.m_bAutoPlay) ? 0 : 1, AudioClipInspector.s_AutoPlayIcons) != 0);
                }
                bool bLoop = AudioClipInspector.m_bLoop;
                AudioClipInspector.m_bLoop = (PreviewGUI.CycleButton((!AudioClipInspector.m_bLoop) ? 0 : 1, AudioClipInspector.s_LoopIcons) != 0);
                if (bLoop != AudioClipInspector.m_bLoop && this.playing)
                {
                    AudioUtil.LoopClip(audioClip, AudioClipInspector.m_bLoop);
                }
                using (new EditorGUI.DisabledScope(flag && !this.playing))
                {
                    bool flag2 = PreviewGUI.CycleButton((!this.playing) ? 0 : 1, AudioClipInspector.s_PlayIcons) != 0;
                    if (flag2 != this.playing)
                    {
                        if (flag2)
                        {
                            AudioUtil.PlayClip(audioClip, 0, AudioClipInspector.m_bLoop);
                            this.m_PlayingClip = audioClip;
                        }
                        else
                        {
                            AudioUtil.StopAllClips();
                            this.m_PlayingClip = null;
                        }
                    }
                }
            }
        }
        public override void OnPreviewSettings()
        {
            if ((UnityEngine.Object)AudioClipInspector.s_DefaultIcon == (UnityEngine.Object)null)
            {
                AudioClipInspector.Init();
            }
            AudioClip target = this.target as AudioClip;

            EditorGUI.BeginDisabledGroup(AudioUtil.IsMovieAudio(target));
            bool disabled = this.targets.Length > 1;

            EditorGUI.BeginDisabledGroup(disabled);
            AudioClipInspector.m_bAutoPlay = !disabled && AudioClipInspector.m_bAutoPlay;
            AudioClipInspector.m_bAutoPlay = PreviewGUI.CycleButton(!AudioClipInspector.m_bAutoPlay ? 0 : 1, AudioClipInspector.s_AutoPlayIcons) != 0;
            EditorGUI.EndDisabledGroup();
            bool bLoop = AudioClipInspector.m_bLoop;

            AudioClipInspector.m_bLoop = PreviewGUI.CycleButton(!AudioClipInspector.m_bLoop ? 0 : 1, AudioClipInspector.s_LoopIcons) != 0;
            if (bLoop != AudioClipInspector.m_bLoop && this.playing)
            {
                AudioUtil.LoopClip(target, AudioClipInspector.m_bLoop);
            }
            EditorGUI.BeginDisabledGroup(disabled && !this.playing);
            bool flag = PreviewGUI.CycleButton(!this.playing ? 0 : 1, AudioClipInspector.s_PlayIcons) != 0;

            if (flag != this.playing)
            {
                if (flag)
                {
                    AudioUtil.PlayClip(target, 0, AudioClipInspector.m_bLoop);
                    this.m_PlayingClip = target;
                }
                else
                {
                    AudioUtil.StopAllClips();
                    this.m_PlayingClip = (AudioClip)null;
                }
            }
            EditorGUI.EndDisabledGroup();
            EditorGUI.EndDisabledGroup();
        }
        public override void OnPreviewGUI(Rect r, GUIStyle background)
        {
            if (AudioClipInspector.s_DefaultIcon == null)
            {
                AudioClipInspector.Init();
            }
            AudioClip audioClip = base.target as AudioClip;
            Event     current   = Event.current;

            if (current.type != EventType.Repaint && current.type != EventType.Layout && current.type != EventType.Used)
            {
                int       num  = AudioUtil.GetSampleCount(audioClip) / (int)r.width;
                EventType type = current.type;
                if (type == EventType.MouseDrag || type == EventType.MouseDown)
                {
                    if (r.Contains(current.mousePosition) && !AudioUtil.IsMovieAudio(audioClip))
                    {
                        if (this.m_PlayingClip != audioClip)
                        {
                            AudioUtil.StopAllClips();
                            AudioUtil.PlayClip(audioClip, 0, AudioClipInspector.m_bLoop);
                            this.m_PlayingClip = audioClip;
                        }
                        AudioUtil.SetClipSamplePosition(audioClip, num * (int)current.mousePosition.x);
                        current.Use();
                    }
                }
            }
            else
            {
                if (Event.current.type == EventType.Repaint)
                {
                    background.Draw(r, false, false, false, false);
                }
                int channelCount = AudioUtil.GetChannelCount(audioClip);
                AudioClipInspector.m_wantedRect = new Rect(r.x, r.y, r.width, r.height);
                float num2 = AudioClipInspector.m_wantedRect.width / audioClip.length;
                if (!AudioUtil.HasPreview(audioClip) && (AudioUtil.IsTrackerFile(audioClip) || AudioUtil.IsMovieAudio(audioClip)))
                {
                    float num3 = (r.height <= 150f) ? (r.y + r.height / 2f - 25f) : (r.y + r.height / 2f - 10f);
                    if (r.width > 64f)
                    {
                        if (AudioUtil.IsTrackerFile(audioClip))
                        {
                            EditorGUI.DropShadowLabel(new Rect(r.x, num3, r.width, 20f), string.Format("Module file with " + AudioUtil.GetMusicChannelCount(audioClip) + " channels.", new object[0]));
                        }
                        else if (AudioUtil.IsMovieAudio(audioClip))
                        {
                            if (r.width > 450f)
                            {
                                EditorGUI.DropShadowLabel(new Rect(r.x, num3, r.width, 20f), "Audio is attached to a movie. To audition the sound, play the movie.");
                            }
                            else
                            {
                                EditorGUI.DropShadowLabel(new Rect(r.x, num3, r.width, 20f), "Audio is attached to a movie.");
                                EditorGUI.DropShadowLabel(new Rect(r.x, num3 + 10f, r.width, 20f), "To audition the sound, play the movie.");
                            }
                        }
                        else
                        {
                            EditorGUI.DropShadowLabel(new Rect(r.x, num3, r.width, 20f), "Can not show PCM data for this file");
                        }
                    }
                    if (this.m_PlayingClip == audioClip)
                    {
                        float    clipPosition = AudioUtil.GetClipPosition(audioClip);
                        TimeSpan timeSpan     = new TimeSpan(0, 0, 0, 0, (int)(clipPosition * 1000f));
                        EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("Playing - {0:00}:{1:00}.{2:000}", timeSpan.Minutes, timeSpan.Seconds, timeSpan.Milliseconds));
                    }
                }
                else
                {
                    PreviewGUI.BeginScrollView(AudioClipInspector.m_wantedRect, this.m_Position, AudioClipInspector.m_wantedRect, "PreHorizontalScrollbar", "PreHorizontalScrollbarThumb");
                    if (Event.current.type == EventType.Repaint)
                    {
                        this.DoRenderPreview(audioClip, AudioUtil.GetImporterFromClip(audioClip), AudioClipInspector.m_wantedRect, 1f);
                    }
                    for (int i = 0; i < channelCount; i++)
                    {
                        if (channelCount > 1 && r.width > 64f)
                        {
                            Rect position = new Rect(AudioClipInspector.m_wantedRect.x + 5f, AudioClipInspector.m_wantedRect.y + AudioClipInspector.m_wantedRect.height / (float)channelCount * (float)i, 30f, 20f);
                            EditorGUI.DropShadowLabel(position, "ch " + (i + 1).ToString());
                        }
                    }
                    if (this.m_PlayingClip == audioClip)
                    {
                        float    clipPosition2 = AudioUtil.GetClipPosition(audioClip);
                        TimeSpan timeSpan2     = new TimeSpan(0, 0, 0, 0, (int)(clipPosition2 * 1000f));
                        GUI.DrawTexture(new Rect(AudioClipInspector.m_wantedRect.x + (float)((int)(num2 * clipPosition2)), AudioClipInspector.m_wantedRect.y, 2f, AudioClipInspector.m_wantedRect.height), EditorGUIUtility.whiteTexture);
                        if (r.width > 64f)
                        {
                            EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("{0:00}:{1:00}.{2:000}", timeSpan2.Minutes, timeSpan2.Seconds, timeSpan2.Milliseconds));
                        }
                        else
                        {
                            EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("{0:00}:{1:00}", timeSpan2.Minutes, timeSpan2.Seconds));
                        }
                        if (!AudioUtil.IsClipPlaying(audioClip))
                        {
                            this.m_PlayingClip = null;
                        }
                    }
                    PreviewGUI.EndScrollView();
                }
                if (AudioClipInspector.m_bPlayFirst)
                {
                    AudioUtil.PlayClip(audioClip, 0, AudioClipInspector.m_bLoop);
                    this.m_PlayingClip = audioClip;
                    AudioClipInspector.m_bPlayFirst = false;
                }
                if (this.playing)
                {
                    GUIView.current.Repaint();
                }
            }
        }
        public override void OnPreviewGUI(Rect r, GUIStyle background)
        {
            if ((UnityEngine.Object)AudioClipInspector.s_DefaultIcon == (UnityEngine.Object)null)
            {
                AudioClipInspector.Init();
            }
            AudioClip target  = this.target as AudioClip;
            Event     current = Event.current;

            if (current.type != EventType.Repaint && current.type != EventType.Layout && current.type != EventType.Used)
            {
                int num = AudioUtil.GetSampleCount(target) / (int)r.width;
                switch (current.type)
                {
                case EventType.MouseDown:
                case EventType.MouseDrag:
                    if (!r.Contains(current.mousePosition) || AudioUtil.IsMovieAudio(target))
                    {
                        break;
                    }
                    if ((UnityEngine.Object) this.m_PlayingClip != (UnityEngine.Object)target)
                    {
                        AudioUtil.StopAllClips();
                        AudioUtil.PlayClip(target, 0, AudioClipInspector.m_bLoop);
                        this.m_PlayingClip = target;
                    }
                    AudioUtil.SetClipSamplePosition(target, num * (int)current.mousePosition.x);
                    current.Use();
                    break;
                }
            }
            else
            {
                if (Event.current.type == EventType.Repaint)
                {
                    background.Draw(r, false, false, false, false);
                }
                int channelCount = AudioUtil.GetChannelCount(target);
                AudioClipInspector.m_wantedRect = new Rect(r.x, r.y, r.width, r.height);
                float num = AudioClipInspector.m_wantedRect.width / target.length;
                if (!AudioUtil.HasPreview(target) && (AudioUtil.IsTrackerFile(target) ? 1 : (AudioUtil.IsMovieAudio(target) ? 1 : 0)) != 0)
                {
                    float y = (double)r.height <= 150.0 ? (float)((double)r.y + (double)r.height / 2.0 - 25.0) : (float)((double)r.y + (double)r.height / 2.0 - 10.0);
                    if ((double)r.width > 64.0)
                    {
                        if (AudioUtil.IsTrackerFile(target))
                        {
                            EditorGUI.DropShadowLabel(new Rect(r.x, y, r.width, 20f), string.Format("Module file with " + (object)AudioUtil.GetMusicChannelCount(target) + " channels."));
                        }
                        else if (AudioUtil.IsMovieAudio(target))
                        {
                            if ((double)r.width > 450.0)
                            {
                                EditorGUI.DropShadowLabel(new Rect(r.x, y, r.width, 20f), "Audio is attached to a movie. To audition the sound, play the movie.");
                            }
                            else
                            {
                                EditorGUI.DropShadowLabel(new Rect(r.x, y, r.width, 20f), "Audio is attached to a movie.");
                                EditorGUI.DropShadowLabel(new Rect(r.x, y + 10f, r.width, 20f), "To audition the sound, play the movie.");
                            }
                        }
                        else
                        {
                            EditorGUI.DropShadowLabel(new Rect(r.x, y, r.width, 20f), "Can not show PCM data for this file");
                        }
                    }
                    if ((UnityEngine.Object) this.m_PlayingClip == (UnityEngine.Object)target)
                    {
                        TimeSpan timeSpan = new TimeSpan(0, 0, 0, 0, (int)((double)AudioUtil.GetClipPosition(target) * 1000.0));
                        EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("Playing - {0:00}:{1:00}.{2:000}", (object)timeSpan.Minutes, (object)timeSpan.Seconds, (object)timeSpan.Milliseconds));
                    }
                }
                else
                {
                    PreviewGUI.BeginScrollView(AudioClipInspector.m_wantedRect, this.m_Position, AudioClipInspector.m_wantedRect, (GUIStyle)"PreHorizontalScrollbar", (GUIStyle)"PreHorizontalScrollbarThumb");
                    if (Event.current.type == EventType.Repaint)
                    {
                        this.DoRenderPreview(target, AudioUtil.GetImporterFromClip(target), AudioClipInspector.m_wantedRect, 1f);
                    }
                    for (int index = 0; index < channelCount; ++index)
                    {
                        if (channelCount > 1 && (double)r.width > 64.0)
                        {
                            EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x + 5f, AudioClipInspector.m_wantedRect.y + AudioClipInspector.m_wantedRect.height / (float)channelCount * (float)index, 30f, 20f), "ch " + (index + 1).ToString());
                        }
                    }
                    if ((UnityEngine.Object) this.m_PlayingClip == (UnityEngine.Object)target)
                    {
                        float    clipPosition = AudioUtil.GetClipPosition(target);
                        TimeSpan timeSpan     = new TimeSpan(0, 0, 0, 0, (int)((double)clipPosition * 1000.0));
                        GUI.DrawTexture(new Rect(AudioClipInspector.m_wantedRect.x + (float)(int)((double)num * (double)clipPosition), AudioClipInspector.m_wantedRect.y, 2f, AudioClipInspector.m_wantedRect.height), (Texture)EditorGUIUtility.whiteTexture);
                        if ((double)r.width > 64.0)
                        {
                            EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("{0:00}:{1:00}.{2:000}", (object)timeSpan.Minutes, (object)timeSpan.Seconds, (object)timeSpan.Milliseconds));
                        }
                        else
                        {
                            EditorGUI.DropShadowLabel(new Rect(AudioClipInspector.m_wantedRect.x, AudioClipInspector.m_wantedRect.y, AudioClipInspector.m_wantedRect.width, 20f), string.Format("{0:00}:{1:00}", (object)timeSpan.Minutes, (object)timeSpan.Seconds));
                        }
                        if (!AudioUtil.IsClipPlaying(target))
                        {
                            this.m_PlayingClip = (AudioClip)null;
                        }
                    }
                    PreviewGUI.EndScrollView();
                }
                if (AudioClipInspector.m_bPlayFirst)
                {
                    AudioUtil.PlayClip(target, 0, AudioClipInspector.m_bLoop);
                    this.m_PlayingClip = target;
                    AudioClipInspector.m_bPlayFirst = false;
                }
                if (!this.playing)
                {
                    return;
                }
                GUIView.current.Repaint();
            }
        }