private static AssLine CreatePostAnimationClusterLine(AssLine originalLine, AssLine lastLine, DateTime start, DateTime end, List<AnimationWithSectionIndex> animsWithSection)
{
AssLine newLine = (AssLine)lastLine.Clone();
newLine.Start = start;
newLine.End = end;
foreach (AnimationWithSectionIndex animWithSection in animsWithSection.OrderBy(a => a.Animation.EndTime))
{
if (animWithSection.Animation.AffectsText)
ResetText(newLine, originalLine);
ApplyAnimation(newLine, animWithSection, 1);
}
return newLine;
}
private static AssLine CreateInitialLine(AssLine originalLine, List <AnimationWithSectionIndex> anims)
{
AssLine newLine = (AssLine)originalLine.Clone();
foreach (AnimationWithSectionIndex anim in anims.Where(a => a.Animation.EndTime < originalLine.Start)
.OrderBy(a => a.Animation.EndTime))
{
ApplyAnimation(newLine, anim, 1);
}
foreach (AnimationWithSectionIndex anim in anims.Where(a => a.Animation.AffectsPast && a.Animation.StartTime >= originalLine.Start)
.OrderByDescending(a => a.Animation.StartTime))
{
ApplyAnimation(newLine, anim, 0);
}
return(newLine);
}
private static IEnumerable <AssLine> CreateFrameLines(AssDocument document, AssLine originalLine, TimeRange timeRange, List <AnimationWithSectionIndex> animations)
{
int rangeStartFrame = TimeUtil.StartTimeToFrame(timeRange.Start);
int rangeEndFrame = TimeUtil.EndTimeToFrame(timeRange.End);
const int frameStepSize = 2;
int subStepFrames = (rangeEndFrame + 1 - rangeStartFrame) % frameStepSize;
int lastIterationFrame = rangeEndFrame + 1 - subStepFrames - frameStepSize;
bool needTextReset = animations.Any(a => a.Animation.AffectsText);
AssLine frameLine = originalLine;
for (int frame = rangeStartFrame; frame <= lastIterationFrame; frame += frameStepSize)
{
frameLine = (AssLine)frameLine.Clone();
frameLine.Start = TimeUtil.FrameToStartTime(frame);
frameLine.End = frame < lastIterationFrame?TimeUtil.FrameToEndTime(frame + frameStepSize - 1) : timeRange.End;
frameLine.Position = originalLine.Position ?? document.GetDefaultPosition(originalLine.AnchorPoint);
if (needTextReset)
{
ResetText(frameLine, originalLine);
}
float interpFrame = frame + (frameStepSize - 1) / 2.0f;
foreach (AnimationWithSectionIndex animWithSection in animations)
{
int animStartFrame = TimeUtil.StartTimeToFrame(animWithSection.Animation.StartTime);
int animEndFrame = TimeUtil.EndTimeToFrame(animWithSection.Animation.EndTime);
if (interpFrame >= animStartFrame && interpFrame < animEndFrame)
{
float t = (interpFrame - animStartFrame) / (animEndFrame - animStartFrame);
ApplyAnimation(frameLine, animWithSection, t);
}
else if (interpFrame >= animEndFrame && interpFrame < animEndFrame + frameStepSize)
{
ApplyAnimation(frameLine, animWithSection, 1);
}
}
yield return(frameLine);
}
}
private static IEnumerable <AssLine> CreateFrameLines(AssLine originalLine, TimeRange timeRange, List <AnimationWithSectionIndex> animations)
{
int rangeStartFrame = TimeUtil.TimeToFrame(timeRange.Start);
int rangeEndFrame = TimeUtil.TimeToFrame(timeRange.End);
const int frameStepSize = 2;
int lastIterationFrame = rangeStartFrame + (rangeEndFrame - 1 - rangeStartFrame) / frameStepSize * frameStepSize;
bool needTextReset = animations.Any(a => a.Animation.AffectsText);
AssLine frameLine = originalLine;
for (int frame = rangeStartFrame; frame <= lastIterationFrame; frame += frameStepSize)
{
frameLine = (AssLine)frameLine.Clone();
frameLine.Start = TimeUtil.FrameToTime(frame);
frameLine.End = frame < lastIterationFrame?TimeUtil.FrameToTime(frame + frameStepSize) : timeRange.End;
if (needTextReset)
{
ResetText(frameLine, originalLine);
}
int interpFrame = frame + frameStepSize / 2;
foreach (AnimationWithSectionIndex animWithSection in animations)
{
int animStartFrame = TimeUtil.TimeToFrame(animWithSection.Animation.StartTime);
int animEndFrame = TimeUtil.TimeToFrame(animWithSection.Animation.EndTime);
if (interpFrame >= animStartFrame && interpFrame < animEndFrame)
{
float t = (float)(interpFrame - animStartFrame) / (animEndFrame - animStartFrame);
ApplyAnimation(frameLine, animWithSection, t);
}
else if (interpFrame >= animEndFrame && interpFrame < animEndFrame + frameStepSize)
{
ApplyAnimation(frameLine, animWithSection, 1);
}
}
yield return(frameLine);
}
}
private static IEnumerable <AssLine> CreateChromaLines(AssLine originalLine, List <Color> colors, PointF center, int maxOffsetX, int maxOffsetY, int durationMs, bool moveIn)
{
if (originalLine.Sections.Count == 0)
{
yield break;
}
for (int i = 0; i < colors.Count; i++)
{
if (colors[i].A == 0)
{
continue;
}
AssLine chromaLine = (AssLine)originalLine.Clone();
foreach (Section section in chromaLine.Sections)
{
int alpha = (int)(section.ForeColor.A * (colors[i].A / 255.0f));
section.ForeColor = Color.FromArgb(alpha, colors[i].R, colors[i].G, colors[i].B);
section.BackColor = Color.Empty;
section.ShadowColors.Clear();
}
float offsetFactor = colors.Count > 1 ? (float)i / (colors.Count - 1) : 0.5f;
float offsetX = offsetFactor * (-maxOffsetX * 2) + maxOffsetX;
float offsetY = offsetFactor * (-maxOffsetY * 2) + maxOffsetY;
PointF farPosition = new PointF(center.X + offsetX, center.Y + offsetY);
PointF nearPosition = new PointF(center.X + offsetX / 5, center.Y + offsetY / 5);
if (moveIn)
{
chromaLine.End = TimeUtil.RoundTimeToFrameCenter(originalLine.Start.AddMilliseconds(durationMs));
chromaLine.Animations.Add(new MoveAnimation(chromaLine.Start, farPosition, chromaLine.End, nearPosition));
}
else
{
chromaLine.Start = TimeUtil.RoundTimeToFrameCenter(originalLine.End.AddMilliseconds(-durationMs));
chromaLine.Animations.Add(new MoveAnimation(chromaLine.Start, nearPosition, chromaLine.End, farPosition));
}
yield return(chromaLine);
}
}
