Files
SpineViewer/SpineViewer/Controls/SpinePreviewer.cs
2025-03-11 00:01:54 +08:00

490 lines
17 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;
using System.Security.Policy;
using System.Diagnostics;
using NLog.Targets;
namespace SpineViewer.Controls
{
public partial class SpinePreviewer : UserControl
{
/// <summary>
/// 包装类, 用于 PropertyGrid 显示
/// </summary>
private class PreviewerProperty
{
private readonly SpinePreviewer previewer;
public PreviewerProperty(SpinePreviewer previewer) { this.previewer = previewer; }
[TypeConverter(typeof(SizeConverter))]
[Category("导出"), DisplayName("分辨率")]
public Size Resolution { get => previewer.Resolution; set => previewer.Resolution = value; }
[TypeConverter(typeof(PointFConverter))]
[Category("导出"), DisplayName("画面中心点")]
public PointF Center { get => previewer.Center; set => previewer.Center = value; }
[Category("导出"), DisplayName("缩放")]
public float Zoom { get => previewer.Zoom; set => previewer.Zoom = value; }
[Category("导出"), DisplayName("旋转")]
public float Rotation { get => previewer.Rotation; set => previewer.Rotation = value; }
[Category("导出"), DisplayName("水平翻转")]
public bool FlipX { get => previewer.FlipX; set => previewer.FlipX = value; }
[Category("导出"), DisplayName("垂直翻转")]
public bool FlipY { get => previewer.FlipY; set => previewer.FlipY = value; }
[Category("预览"), DisplayName("显示坐标轴")]
public bool ShowAxis { get => previewer.ShowAxis; set => previewer.ShowAxis = value; }
[Category("预览"), DisplayName("最大帧率")]
public uint MaxFps { get => previewer.MaxFps; set => previewer.MaxFps = value; }
}
[Category("自定义"), Description("相关联的 SpineListView")]
public SpineListView? SpineListView { get; set; }
[Category("自定义"), Description("用于显示画面属性的属性页")]
public PropertyGrid? PropertyGrid
{
get => propertyGrid;
set
{
propertyGrid = value;
if (propertyGrid is not null)
propertyGrid.SelectedObject = new PreviewerProperty(this);
}
}
private PropertyGrid? propertyGrid;
public const float ZOOM_MAX = 1000f;
public const float ZOOM_MIN = 0.001f;
public const int BACKGROUND_CELL_SIZE = 10;
private static readonly SFML.Graphics.Color BackgroundColor = new(105, 105, 105);
private static readonly SFML.Graphics.Color AxisColor = new(220, 220, 220);
private static readonly SFML.Graphics.Color BoundsColor = new(120, 200, 0);
private readonly SFML.Graphics.VertexArray AxisVertex = new(SFML.Graphics.PrimitiveType.Lines, 2);
private readonly SFML.Graphics.VertexArray BoundsRect = new(SFML.Graphics.PrimitiveType.LineStrip, 5);
private readonly SFML.Graphics.RenderWindow RenderWindow;
private readonly SFML.System.Clock Clock = new();
private SFML.System.Vector2f? draggingSrc = null;
private Task? task = null;
private CancellationTokenSource? cancelToken = null;
/// <summary>
/// 分辨率
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public Size Resolution
{
get => resolution;
set
{
if (value.Width <= 0) value.Width = 100;
if (value.Height <= 0) value.Height = 100;
float parentX = Width;
float parentY = Height;
float sizeX = value.Width;
float sizeY = value.Height;
if ((sizeY / sizeX) < (parentY / parentX))
{
// 相同的 X, 子窗口 Y 更小
sizeY = parentX * sizeY / sizeX;
sizeX = parentX;
}
else
{
// 相同的 Y, 子窗口 X 更小
sizeX = parentY * sizeX / sizeY;
sizeY = parentY;
}
// 必须通过 SFML 的方法调整窗口
RenderWindow.Position = new((int)(parentX - sizeX) / 2, (int)(parentY - sizeY) / 2);
RenderWindow.Size = new((uint)sizeX, (uint)sizeY);
// 将 view 的大小设置成于 resolution 相同的大小, 其余属性都不变
var view = RenderWindow.GetView();
var signX = Math.Sign(view.Size.X);
var signY = Math.Sign(view.Size.Y);
view.Size = new(value.Width * signX, value.Height * signY);
RenderWindow.SetView(view);
resolution = value;
}
}
private Size resolution = new(0, 0);
/// <summary>
/// 画面中心点
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public PointF Center
{
get
{
var center = RenderWindow.GetView().Center;
return new(center.X, center.Y);
}
set
{
var view = RenderWindow.GetView();
view.Center = new(value.X, value.Y);
RenderWindow.SetView(view);
}
}
/// <summary>
/// 画面缩放
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public float Zoom
{
get => resolution.Width / Math.Abs(RenderWindow.GetView().Size.X);
set
{
value = Math.Clamp(value, ZOOM_MIN, ZOOM_MAX);
var view = RenderWindow.GetView();
var signX = Math.Sign(view.Size.X);
var signY = Math.Sign(view.Size.Y);
view.Size = new(resolution.Width / value * signX, resolution.Height / value * signY);
RenderWindow.SetView(view);
}
}
/// <summary>
/// 画面旋转
/// </summary>
[Browsable(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
public float Rotation
{
get => RenderWindow.GetView().Rotation;
set
{
var view = RenderWindow.GetView();
view.Rotation = value;
RenderWindow.SetView(view);
}
}
/// <summary>
/// 水平翻转
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public bool FlipX
{
get => RenderWindow.GetView().Size.X < 0;
set
{
var view = RenderWindow.GetView();
var size = view.Size;
if (size.X > 0 && value || size.X < 0 && !value)
size.X *= -1;
view.Size = size;
RenderWindow.SetView(view);
}
}
/// <summary>
/// 垂直翻转
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public bool FlipY
{
get => RenderWindow.GetView().Size.Y < 0;
set
{
var view = RenderWindow.GetView();
var size = view.Size;
if (size.Y > 0 && value || size.Y < 0 && !value)
size.Y *= -1;
view.Size = size;
RenderWindow.SetView(view);
}
}
/// <summary>
/// 显示坐标轴
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public bool ShowAxis { get; set; } = true;
/// <summary>
/// 最大帧率
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public uint MaxFps { get => maxFps; set { RenderWindow.SetFramerateLimit(value); maxFps = value; } }
private uint maxFps = 60;
/// <summary>
/// RenderWindow.View
/// </summary>
[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
[Browsable(false)]
public SFML.Graphics.View View { get => RenderWindow.GetView(); }
public SpinePreviewer()
{
InitializeComponent();
RenderWindow = new(panel.Handle);
RenderWindow.SetActive(false);
// 设置默认参数
Resolution = new(2048, 2048);
Center = new(0, 0);
FlipY = true;
MaxFps = 30;
}
/// <summary>
/// 开始预览
/// </summary>
public void StartPreview()
{
if (task is not null)
return;
cancelToken = new();
task = Task.Run(RenderTask, cancelToken.Token);
}
/// <summary>
/// 停止预览
/// </summary>
public void StopPreview()
{
if (task is null || cancelToken is null)
return;
cancelToken.Cancel();
task.Wait();
cancelToken = null;
task = null;
}
private void SpinePreviewer_SizeChanged(object sender, EventArgs e)
{
if (RenderWindow is null)
return;
float parentX = Width;
float parentY = Height;
float sizeX = panel.Width;
float sizeY = panel.Height;
if ((sizeY / sizeX) < (parentY / parentX))
{
// 相同的 X, 子窗口 Y 更小
sizeY = parentX * sizeY / sizeX;
sizeX = parentX;
}
else
{
// 相同的 Y, 子窗口 X 更小
sizeX = parentY * sizeX / sizeY;
sizeY = parentY;
}
// 必须通过 SFML 的方法调整窗口
RenderWindow.Position = new((int)(parentX - sizeX) / 2, (int)(parentY - sizeY) / 2);
RenderWindow.Size = new((uint)sizeX, (uint)sizeY);
}
private void panel_MouseDown(object sender, MouseEventArgs e)
{
// 右键优先级高, 进入画面拖动模式, 需要重新记录源点
if ((e.Button & MouseButtons.Right) != 0)
{
draggingSrc = RenderWindow.MapPixelToCoords(new(e.X, e.Y));
Cursor = Cursors.Hand;
}
// 按下了左键并且右键是松开的
else if ((e.Button & MouseButtons.Left) != 0 && (MouseButtons & MouseButtons.Right) == 0)
{
draggingSrc = RenderWindow.MapPixelToCoords(new(e.X, e.Y));
var src = new PointF(((SFML.System.Vector2f)draggingSrc).X, ((SFML.System.Vector2f)draggingSrc).Y);
if (SpineListView is not null)
{
lock (SpineListView.Spines)
{
var spines = SpineListView.Spines;
// 没有按下 Ctrl 键就只选中点击的那个, 所以先清空选中列表
if ((ModifierKeys & Keys.Control) == 0)
{
bool hit = false;
for (int i = 0; i < spines.Count; i++)
{
if (spines[i].Bounds.Contains(src))
{
hit = true;
// 如果点到了没被选中的东西, 则清空原先选中的, 改为只选中这一次点的
if (!SpineListView.SelectedIndices.Contains(i))
{
SpineListView.SelectedIndices.Clear();
SpineListView.SelectedIndices.Add(i);
}
break;
}
}
// 如果点了空白的地方, 就清空选中列表
if (!hit)
SpineListView.SelectedIndices.Clear();
}
else
{
for (int i = 0; i < spines.Count; i++)
{
if (spines[i].Bounds.Contains(src))
{
SpineListView.SelectedIndices.Add(i);
break;
}
}
}
}
}
}
}
private void panel_MouseMove(object sender, MouseEventArgs e)
{
if (draggingSrc is null)
return;
var src = (SFML.System.Vector2f)draggingSrc;
var dst = RenderWindow.MapPixelToCoords(new(e.X, e.Y));
var _delta = dst - src;
var delta = new SizeF(_delta.X, _delta.Y);
if ((e.Button & MouseButtons.Right) != 0)
{
Center -= delta;
}
else if ((e.Button & MouseButtons.Left) != 0)
{
if (SpineListView is not null)
{
lock (SpineListView.Spines)
{
foreach (var spine in SpineListView.Spines)
{
if (spine.IsSelected)
spine.Position += delta;
}
}
}
draggingSrc = dst;
}
}
private void panel_MouseUp(object sender, MouseEventArgs e)
{
// 右键高优先级, 结束画面拖动模式
if ((e.Button & MouseButtons.Right) != 0)
{
SpineListView?.PropertyGrid?.Refresh();
draggingSrc = null;
Cursor = Cursors.Default;
PropertyGrid?.Refresh();
}
// 按下了左键并且右键是松开的
else if ((e.Button & MouseButtons.Left) != 0 && (MouseButtons & MouseButtons.Right) == 0)
{
draggingSrc = null;
SpineListView?.PropertyGrid?.Refresh();
}
}
private void panel_MouseWheel(object sender, MouseEventArgs e)
{
Zoom *= (e.Delta > 0 ? 1.1f : 0.9f);
PropertyGrid?.Refresh();
}
private void RenderTask()
{
try
{
RenderWindow.SetActive(true);
float delta;
while (cancelToken is not null && !cancelToken.IsCancellationRequested)
{
delta = Clock.ElapsedTime.AsSeconds();
Clock.Restart();
RenderWindow.Clear(BackgroundColor);
if (ShowAxis)
{
// 画一个很长的坐标轴, 用 1e9 比较合适
AxisVertex[0] = new(new(-1e9f, 0), AxisColor);
AxisVertex[1] = new(new(1e9f, 0), AxisColor);
RenderWindow.Draw(AxisVertex);
AxisVertex[0] = new(new(0, -1e9f), AxisColor);
AxisVertex[1] = new(new(0, 1e9f), AxisColor);
RenderWindow.Draw(AxisVertex);
}
// 渲染 Spine
if (SpineListView is not null)
{
lock (SpineListView.Spines)
{
foreach (var spine in SpineListView.Spines.Reverse())
{
spine.Update(delta);
RenderWindow.Draw(spine);
if (spine.IsSelected)
{
var bounds = spine.Bounds;
BoundsRect[0] = BoundsRect[4] = new(new(bounds.Left, bounds.Top), BoundsColor);
BoundsRect[1] = new(new(bounds.Right, bounds.Top), BoundsColor);
BoundsRect[2] = new(new(bounds.Right, bounds.Bottom), BoundsColor);
BoundsRect[3] = new(new(bounds.Left, bounds.Bottom), BoundsColor);
RenderWindow.Draw(BoundsRect);
}
}
}
}
RenderWindow.Display();
}
}
finally
{
RenderWindow.SetActive(false);
}
}
}
}