334 lines
11 KiB
C#
334 lines
11 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Toolbox.Library.Forms
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{
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public partial class TimeLine : UserControl
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{
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public TimeLine()
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{
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InitializeComponent();
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timer.Interval = 10;
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timer.Tick += Timer_Tick;
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}
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public void Play() { }
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public void Stop() { }
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protected int margin = 0;
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private int startTime = 0;
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public int StartTime
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{
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set {
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if (value == FrameCount)
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startTime = value - 1;
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else
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startTime = value;
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}
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}
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public event EventHandler FrameChanged;
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private Timer timer = new Timer();
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public bool Locked { get; private set; } = false;
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private void ResolveCollision()
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{
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if (frameLeft < startTime)
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{
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frameRight += startTime - frameLeft;
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frameLeft = startTime;
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}
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else if (frameRight > lastFrame)
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{
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frameLeft += lastFrame - frameRight;
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frameRight = lastFrame;
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}
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}
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private void ResolveFitting()
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{
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if (frameLeft < startTime)
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{
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frameRight += startTime - frameLeft;
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if (frameRight > lastFrame)
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frameRight = lastFrame;
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frameLeft = startTime;
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}
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else if (frameRight > lastFrame)
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{
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frameLeft += lastFrame - frameRight;
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if (frameLeft < startTime)
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frameLeft = startTime;
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frameRight = lastFrame;
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}
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}
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public float CurrentFrame
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{
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get { return currentFrame; }
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set
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{
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if (FollowCurrentFrame && !(Focused && MouseButtons == MouseButtons.Right))
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{
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double delta = value - (frameRight + frameLeft) * 0.5;
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frameLeft += delta;
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frameRight += delta;
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ResolveCollision();
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}
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currentFrame = value;
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Refresh();
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}
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}
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public float FrameCount
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{
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get { return lastFrame + 1; }
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set
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{
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if (value == startTime)
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lastFrame = value + 1;
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else
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lastFrame = value;
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if (value == 1)
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{
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frameLeft = startTime;
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frameRight = 1;
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}
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else
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{
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ResolveFitting();
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}
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if (currentFrame > lastFrame)
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currentFrame = lastFrame;
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Refresh();
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}
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}
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public bool FollowCurrentFrame = true;
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protected float currentFrame = 0;
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protected float lastFrame = 1000;
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protected double frameLeft = 0;
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protected double frameRight = 200;
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protected Point lastMousePos;
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protected static Brush brush1 = new SolidBrush(FormThemes.BaseTheme.TimelineNumberColor);
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protected static Brush brush2 = new SolidBrush(FormThemes.BaseTheme.TimelineOverlayColor);
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protected static Brush brush3 = new SolidBrush(FormThemes.BaseTheme.TimelineBackColor);
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protected static Brush brush4 = new SolidBrush(Color.FromArgb(90, 90, 90));
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protected static Brush brush5 = new SolidBrush(Color.FromArgb(150, 150, 150));
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protected static Pen pen1 = new Pen(new SolidBrush(FormThemes.BaseTheme.TimelineLineColor), 2);
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protected static Pen pen2 = new Pen(new SolidBrush(FormThemes.BaseTheme.TimelineLine2Color), 2);
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protected static Pen pen3 = new Pen(new SolidBrush(Color.FromArgb(150, 150, 150)), 2);
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protected static Font font = new Font(new FontFamily("arial"), 10);
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protected static int barHeight = TextRenderer.MeasureText("0", font).Height;
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protected override void OnPaintBackground(PaintEventArgs e)
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{
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base.OnPaint(e);
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e.Graphics.SetClip(new Rectangle(margin, 0, Width - margin, Height));
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double currentFrameX = 20 + margin + (currentFrame - frameLeft) * (Width - 40 - margin) / (frameRight - frameLeft);
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e.Graphics.FillRectangle(brush2, new Rectangle(0, 0, Width, Height));
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e.Graphics.FillRectangle(brush3, new Rectangle(0, 0, Width, barHeight));
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double step = 50 * (frameRight - frameLeft) / Width;
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if (step > 10)
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step = Math.Round(step / 10.0) * 10;
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else
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{
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step = Math.Round(Math.Max(1, step));
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}
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if (frameRight != frameLeft)
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{
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double max;
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if (frameRight < lastFrame)
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max = Math.Min(frameRight + step, lastFrame);
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else
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max = frameRight - step;
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for (double frame = Math.Floor(frameLeft / step) * step; frame <= max; frame += step)
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{
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double frameX = 20 + margin + (frame - frameLeft) * (Width - 40 - margin) / (frameRight - frameLeft);
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e.Graphics.DrawLine(pen1, new Point((int)frameX, barHeight), new Point((int)frameX, Height));
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e.Graphics.DrawString("" + frame, font, brush4, new Point((int)frameX - TextRenderer.MeasureText("" + frame, font).Width / 2, 0));
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}
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}
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if (frameRight == lastFrame)
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{
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//draw last frame regardless of the steps
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double x = Width - 20;
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e.Graphics.DrawLine(pen1, new Point((int)x, barHeight), new Point((int)x, Height));
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e.Graphics.DrawString("" + lastFrame, font, brush4, new Point((int)x - TextRenderer.MeasureText("" + lastFrame, font).Width / 2, 0));
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}
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/*
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int lastY = value((int)(Math.Round(- 20+margin * (frameRight - frameLeft) / (Width - 40-margin) + frameLeft) + lastFrame + 1) % (lastFrame + 1));
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for (int x = 5; x < Width+10; x+=5)
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{
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e.Graphics.DrawLine(pen3, x - 5, lastY, x, lastY =
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value((int)(Math.Round((x - 20+margin) * (frameRight - frameLeft) / (Width - 40-margin) + frameLeft) + lastFrame + 1) % (lastFrame + 1))
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);
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}
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*/
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}
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protected override void OnPaint(PaintEventArgs e)
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{
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e.Graphics.SetClip(new Rectangle(margin, 0, Width - margin, Height));
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double currentFrameX = 20 + margin + (currentFrame - frameLeft) * (Width - 40 - margin) / (frameRight - frameLeft);
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base.OnPaint(e);
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if (frameLeft != frameRight)
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e.Graphics.DrawLine(pen2, new Point((int)currentFrameX, barHeight), new Point((int)currentFrameX, Height));
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e.Graphics.DrawString("" + currentFrame, font, brush1, new Point((int)currentFrameX - TextRenderer.MeasureText("" + currentFrame, font).Width / 2, 0));
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}
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private int value(int frame)
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{
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return frame + 30;
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}
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private void Timer_Tick(object sender, EventArgs e)
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{
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double step;
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if (lastMousePos.X < 20 + margin)
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{
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step = (20 + margin - lastMousePos.X) * (frameRight - frameLeft) / Width;
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frameLeft -= step;
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frameRight -= step;
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#region resolve collsions
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if (frameLeft < startTime)
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{
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frameRight -= frameLeft;
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frameLeft = startTime;
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}
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#endregion
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}
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else
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{
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step = (lastMousePos.X - Width + 20) * (frameRight - frameLeft) / Width;
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frameLeft += step;
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frameRight += step;
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#region resolve collsions
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if (frameRight > lastFrame)
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{
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frameLeft += lastFrame - frameRight;
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frameRight = lastFrame;
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}
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#endregion
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}
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currentFrame = Math.Min(Math.Max(startTime, (int)Math.Round(((lastMousePos.X - 20 - margin) * (frameRight - frameLeft) / (Width - 40 - margin) + frameLeft))), lastFrame);
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FrameChanged?.Invoke(this, new EventArgs());
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Refresh();
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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if (lastFrame == startTime)
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return;
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if (e.Button == MouseButtons.Left)
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{
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timer.Enabled = (e.X < 20 + margin || e.X > Width - 20);
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Locked = true;
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currentFrame = Math.Min(Math.Max(startTime, (int)Math.Round(((e.X - 20 - margin) * (frameRight - frameLeft) / (Width - 40 - margin) + frameLeft))), lastFrame);
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FrameChanged?.Invoke(this, new EventArgs());
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Refresh();
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}
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else if (e.Button == MouseButtons.Right)
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{
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double delta = (e.X - lastMousePos.X) * (frameRight - frameLeft) / (Width - 40 - margin);
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frameLeft -= delta;
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frameRight -= delta;
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ResolveCollision();
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Refresh();
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}
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lastMousePos = e.Location;
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}
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protected override void OnMouseUp(MouseEventArgs e)
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{
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timer.Stop();
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Locked = false;
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base.OnMouseUp(e);
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}
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protected override void OnMouseWheel(MouseEventArgs e)
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{
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base.OnMouseWheel(e);
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if (lastFrame == startTime)
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return;
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if (frameRight - frameLeft <= 2 && e.Delta > 0)
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return;
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double delta = 1 + Math.Min(Math.Max(-0.5, -e.Delta * 0.00390625), 0.5);
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double frameOrigin = Math.Min(Math.Max(startTime, ((e.X - 20 - margin) * (frameRight - frameLeft) / (Width - 40 - margin) + frameLeft)), lastFrame);
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frameLeft = Math.Min(-1, (frameLeft - frameOrigin)) * delta + frameOrigin;
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frameRight = Math.Max(1, (frameRight - frameOrigin)) * delta + frameOrigin;
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ResolveFitting();
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Refresh();
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}
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protected override void OnResize(EventArgs e)
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{
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Refresh();
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base.OnResize(e);
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}
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protected override CreateParams CreateParams
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{
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get
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{
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CreateParams cp = base.CreateParams;
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cp.ExStyle |= 0x02000000; // Turn on WS_EX_COMPOSITED
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return cp;
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}
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}
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}
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}
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