protected override void RenderEvent(FrameRange viewRange, FrameRange validKeyframeRange)
{
int startOffsetHandleId = EditorGUIUtility.GetControlID(FocusType.Passive);
switch (Event.current.type)
{
case EventType.MouseDown:
if (Event.current.alt && EditorGUIUtility.hotControl == 0 && _eventRect.Contains(Event.current.mousePosition))
{
EditorGUIUtility.hotControl = startOffsetHandleId;
_frameMouseDown = SequenceEditor.GetFrameForX(Event.current.mousePosition.x) - _playAudioEvt.Start;
Event.current.Use();
}
break;
case EventType.MouseDrag:
if (EditorGUIUtility.hotControl == startOffsetHandleId)
{
int mouseCurrentFrame = Mathf.Clamp(SequenceEditor.GetFrameForX(Event.current.mousePosition.x) - _playAudioEvt.Start, 0, _playAudioEvt.Length);
int mouseDelta = _frameMouseDown - mouseCurrentFrame;
if (mouseDelta != 0)
{
_frameMouseDown = mouseCurrentFrame;
_startOffset.serializedObject.Update();
_startOffset.intValue = Mathf.Clamp(_startOffset.intValue + mouseDelta, 0, _playAudioEvt.GetMaxStartOffset());
_startOffset.serializedObject.ApplyModifiedProperties();
}
Event.current.Use();
}
break;
case EventType.MouseUp:
if (EditorGUIUtility.hotControl == startOffsetHandleId)
{
EditorGUIUtility.hotControl = 0;
Event.current.Use();
}
break;
}
int frameRangeLength = _playAudioEvt.Length;
base.RenderEvent(viewRange, validKeyframeRange);
if (frameRangeLength != _playAudioEvt.Length)
{
_startOffset.serializedObject.Update();
_startOffset.intValue = Mathf.Clamp(_startOffset.intValue, 0, _playAudioEvt.GetMaxStartOffset());
_startOffset.serializedObject.ApplyModifiedProperties();
}
if (_currentClip != _playAudioEvt.AudioClip || _clipMinMaxData == null)
{
_clipMinMaxData = FUtility.GetAudioMinMaxData(_playAudioEvt.AudioClip);
_currentClip = _playAudioEvt.AudioClip;
}
//--波形图绘制
//if (Event.current.type == EventType.Repaint && _clipMinMaxData != null && _currentClip != null)
//{
// float border = 2;
// Rect waveformRect = _eventRect;
// waveformRect.xMin += border;
// waveformRect.xMax -= border;
// FrameRange visibleEvtRange = _playAudioEvt.FrameRange;
// float startOffset = _playAudioEvt.StartOffset;
// if (viewRange.Start > visibleEvtRange.Start)
// {
// startOffset += viewRange.Start - visibleEvtRange.Start;
// visibleEvtRange.Start = viewRange.Start;
// }
// if (viewRange.End < visibleEvtRange.End)
// {
// visibleEvtRange.End = viewRange.End;
// }
// int numChannels = _currentClip.channels;
// int numSamples = _clipMinMaxData.Length / (2 * numChannels);
// Rect fullWaveformRect = _eventRect;
// fullWaveformRect.width = SequenceEditor.PixelsPerFrame * _currentClip.length * SequenceEditor.Sequence.FrameRate;
// GUI.BeginClip(waveformRect);
// fullWaveformRect.yMin -= 5;
// fullWaveformRect.yMax += 15;
// fullWaveformRect.x = -startOffset * SequenceEditor.PixelsPerFrame;
// AudioCurveRendering.DrawMinMaxFilledCurve(fullWaveformRect, delegate (float x, out Color col, out float minValue, out float maxValue)
// {
// col = new Color(1f, 0.55f, 0f, 1f);
// float p = Mathf.Clamp(x * (numSamples - 2), 0.0f, numSamples - 2);
// int i = (int)Mathf.Floor(p);
// minValue = 10;
// maxValue = -10;
// for (int channel = 0; channel != numChannels; ++channel)
// {
// int offset1 = (i * numChannels + channel) * 2;
// int offset2 = offset1 + numChannels * 2;
// minValue = Mathf.Min(minValue, _clipMinMaxData[offset1 + 1], _clipMinMaxData[offset2 + 1]);
// maxValue = Mathf.Max(maxValue, _clipMinMaxData[offset1 + 0], _clipMinMaxData[offset2 + 0]);
// if (minValue > maxValue)
// {
// float tmp = minValue;
// minValue = maxValue;
// maxValue = tmp;
// }
// }
// });
// GUI.EndClip();
//}
}
