55 lines
1.5 KiB
C#
55 lines
1.5 KiB
C#
|
using UnityEngine;
|
||
|
|
|
||
|
|
namespace UnityEditor.Timeline
|
||
|
|
{
|
||
|
|
enum PlaybackScrollMode
|
||
|
|
{
|
||
|
|
None,
|
||
|
|
Pan,
|
||
|
|
Smooth
|
||
|
|
}
|
||
|
|
|
||
|
|
static class PlaybackScroller
|
||
|
|
{
|
||
|
|
public static void AutoScroll(WindowState state)
|
||
|
|
{
|
||
|
|
if (Event.current.type != EventType.Layout)
|
||
|
|
return;
|
||
|
|
|
||
|
|
switch (state.autoScrollMode)
|
||
|
|
{
|
||
|
|
case PlaybackScrollMode.Pan:
|
||
|
|
DoPanScroll(state);
|
||
|
|
break;
|
||
|
|
case PlaybackScrollMode.Smooth:
|
||
|
|
DoSmoothScroll(state);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void DoSmoothScroll(WindowState state)
|
||
|
|
{
|
||
|
|
if (state.playing)
|
||
|
|
state.SetPlayHeadToMiddle();
|
||
|
|
|
||
|
|
state.UpdateLastFrameTime();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void DoPanScroll(WindowState state)
|
||
|
|
{
|
||
|
|
if (!state.playing)
|
||
|
|
return;
|
||
|
|
|
||
|
|
var paddingDeltaTime = state.PixelDeltaToDeltaTime(WindowConstants.autoPanPaddingInPixels);
|
||
|
|
var showRange = state.timeAreaShownRange;
|
||
|
|
var rightBoundForPan = showRange.y - paddingDeltaTime;
|
||
|
|
if (state.editSequence.time > rightBoundForPan)
|
||
|
|
{
|
||
|
|
var leftBoundForPan = showRange.x + paddingDeltaTime;
|
||
|
|
var delta = rightBoundForPan - leftBoundForPan;
|
||
|
|
state.SetTimeAreaShownRange(showRange.x + delta, showRange.y + delta);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|