Switch-Toolbox/Switch_Toolbox_Library/Forms/Animation/TimeLine.cs
2019-10-19 20:47:25 -04:00

318 lines
10 KiB
C#

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