JD2022-TU1/main/tools/framework/JD.Timeline/View/ClipView/Widgets/AnimationClipWidget.cs

using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;
using JD.Application.View.Timeline;
using JD.Serialization;

namespace JD.Timeline.View.ClipView.Widgets
{
    public class AnimationClipWidget : ClipWithActorWidget
    {
        public AnimationClipWidget(AnimationClip model)
            : base(model)
        {
        }

        public new AnimationClip Model
        {
            get { return (AnimationClip)base.Model; }
        }

        public override string ToolTipText
        {
            get
            {
                return string.Concat(base.ToolTipText, "\nAnimation: ", Model.AnimationName);
            }
        }

        protected override void DrawActorName(PaintEventArgs e)
        {
            base.DrawActorName(e);
            DrawText(e.Graphics, "Animation: ", Model.AnimationName, 1);
        }

        protected override void FillBackground(Graphics graphics, Rectangle bounds)
        {
            base.FillBackground(graphics, bounds);
            PaintLoopLines(graphics);
        }

        private void PaintLoopLines(Graphics graphics)
        {
            foreach (var frame in EnumerateLoopFrames)
            {
                int x = Timeline.PixelFromFrame(frame);
                graphics.DrawLine(Pens.DarkRed, x, Bounds.Top, x, Bounds.Bottom - 1);
            }
        }

        protected IEnumerable<float> EnumerateLoopFrames
        {
            get
            {
                var animation = Model.GetAnimation();
                if (animation != null)
                {
                    for (int frame = Model.StartFrame + animation.Duration; frame < Model.StopFrame; frame += animation.Duration)
                    {
                        yield return frame;
                        if (!Model.Loop)
                        {
                            yield break;
                        }
                    }
                }
            }
        }
    }
}