更换为wpf
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ww-rm
253
SFMLRenderer/SFMLRenderPanel.xaml.cs
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253
SFMLRenderer/SFMLRenderPanel.xaml.cs
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using SFML.Graphics;
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using SFML.System;
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using SFML.Window;
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using System;
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using System.Collections.Generic;
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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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namespace SFMLRenderer
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{
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/// <summary>
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/// SFMLRenderPanel.xaml 的交互逻辑
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/// </summary>
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public partial class SFMLRenderPanel : System.Windows.Controls.UserControl, ISFMLRenderer
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{
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private RenderWindow? RenderWindow => _hwndHost.RenderWindow;
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public SFMLRenderPanel()
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{
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InitializeComponent();
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}
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public event EventHandler? RendererCreated
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{
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add => _hwndHost.RenderWindowBuilded += value;
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remove => _hwndHost.RenderWindowBuilded -= value;
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}
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public event EventHandler? RendererDisposing
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{
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add => _hwndHost.RenderWindowDestroying += value;
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remove => _hwndHost.RenderWindowDestroying -= value;
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}
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public event EventHandler<MouseMoveEventArgs>? CanvasMouseMove
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{
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add { if (RenderWindow is RenderWindow w) w.MouseMoved += value; }
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remove { if (RenderWindow is RenderWindow w) w.MouseMoved -= value; }
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}
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public event EventHandler<MouseButtonEventArgs>? CanvasMouseButtonPressed
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{
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add { if (RenderWindow is RenderWindow w) w.MouseButtonPressed += value; }
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remove { if (RenderWindow is RenderWindow w) w.MouseButtonPressed -= value; }
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}
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public event EventHandler<MouseButtonEventArgs>? CanvasMouseButtonReleased
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{
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add { if (RenderWindow is RenderWindow w) w.MouseButtonReleased += value; }
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remove { if (RenderWindow is RenderWindow w) w.MouseButtonReleased -= value; }
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}
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public event EventHandler<MouseWheelScrollEventArgs>? CanvasMouseWheelScrolled
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{
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add { if (RenderWindow is RenderWindow w) w.MouseWheelScrolled += value; }
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remove { if (RenderWindow is RenderWindow w) w.MouseWheelScrolled -= value; }
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}
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public Vector2u Resolution
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{
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get => _resolution;
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set
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{
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if (RenderWindow is null) return;
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if (value == _resolution) return;
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if (value.X <= 0 || value.Y <= 0) return;
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var zoom = Zoom;
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float parentW = (float)ActualWidth;
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float parentH = (float)ActualHeight;
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float renderW = value.X;
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float renderH = value.Y;
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float scale = Math.Min(parentW / renderW, parentH / renderH); // 两方向取较小值, 保证 parent 覆盖 render
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renderW *= scale;
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renderH *= scale;
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_hwndHost.Width = renderW;
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_hwndHost.Height = renderH;
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_resolution = value;
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// 设置完 resolution 后还原缩放比例
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Zoom = zoom;
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}
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}
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private Vector2u _resolution = new(100, 100);
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public Vector2f Center
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{
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get
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{
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if (RenderWindow is null) return default;
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using var view = RenderWindow.GetView();
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return view.Center;
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}
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set
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{
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if (RenderWindow is null) return;
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using var view = RenderWindow.GetView();
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view.Center = value;
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RenderWindow.SetView(view);
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}
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}
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public float Zoom
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{
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get
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{
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if (RenderWindow is null) return 1;
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using var view = RenderWindow.GetView();
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return Math.Abs(_resolution.X / view.Size.X); // XXX: 仅使用宽度进行缩放计算
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}
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set
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{
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value = Math.Abs(value);
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if (RenderWindow is null || value <= 0) return;
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using var view = RenderWindow.GetView();
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var signX = Math.Sign(view.Size.X);
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var signY = Math.Sign(view.Size.Y);
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view.Size = new(_resolution.X / value * signX, _resolution.Y / value * signY);
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RenderWindow.SetView(view);
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}
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}
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public float Rotation
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{
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get
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{
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if (RenderWindow is null) return default;
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using var view = RenderWindow.GetView();
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return view.Rotation;
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}
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set
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{
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if (RenderWindow is null) return;
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using var view = RenderWindow.GetView();
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view.Rotation = value;
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RenderWindow.SetView(view);
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}
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}
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public bool FlipX
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{
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get
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{
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if (RenderWindow is null) return false;
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using var view = RenderWindow.GetView();
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return view.Size.X < 0;
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}
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set
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{
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if (RenderWindow is null) return;
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using var view = RenderWindow.GetView();
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var size = view.Size;
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if (size.X > 0 && value || size.X < 0 && !value)
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size.X *= -1;
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view.Size = size;
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RenderWindow.SetView(view);
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}
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}
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public bool FlipY
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{
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get
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{
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if (RenderWindow is null) return false;
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using var view = RenderWindow.GetView();
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return view.Size.Y < 0;
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}
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set
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{
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if (RenderWindow is null) return;
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using var view = RenderWindow.GetView();
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var size = view.Size;
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if (size.Y > 0 && value || size.Y < 0 && !value)
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size.Y *= -1;
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view.Size = size;
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RenderWindow.SetView(view);
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}
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}
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public uint MaxFps
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{
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get => _maxFps;
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set
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{
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if (RenderWindow is null) return;
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RenderWindow.SetFramerateLimit(value);
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_maxFps = value;
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}
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}
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private uint _maxFps = 0;
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public bool VerticalSync
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{
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get => _verticalSync;
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set
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{
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if (RenderWindow is null) return;
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RenderWindow.SetVerticalSyncEnabled(value);
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_verticalSync = value;
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}
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}
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private bool _verticalSync = false;
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public void Clear() => RenderWindow?.Clear();
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public void Clear(Color color) => RenderWindow?.Clear(color);
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public void Display() => RenderWindow?.Display();
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public void Draw(Drawable drawable) => RenderWindow?.Draw(drawable);
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public void Draw(Drawable drawable, RenderStates states) => RenderWindow?.Draw(drawable, states);
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public void Draw(Vertex[] vertices, PrimitiveType type) => RenderWindow?.Draw(vertices, type);
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public void Draw(Vertex[] vertices, PrimitiveType type, RenderStates states) => RenderWindow?.Draw(vertices, type, states);
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public void Draw(Vertex[] vertices, uint start, uint count, PrimitiveType type) => RenderWindow?.Draw(vertices, start, count, type);
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public View GetView() => RenderWindow?.GetView() ?? new();
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public Vector2i MapCoordsToPixel(Vector2f point) => RenderWindow?.MapCoordsToPixel(point) ?? default;
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public Vector2f MapPixelToCoords(Vector2i point) => RenderWindow?.MapPixelToCoords(point) ?? default;
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public void SetActive(bool active) => RenderWindow?.SetActive(active);
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public void SetView(View view) => RenderWindow?.SetView(view);
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protected override void OnRenderSizeChanged(System.Windows.SizeChangedInfo sizeInfo)
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{
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base.OnRenderSizeChanged(sizeInfo);
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if (RenderWindow is null) return;
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float parentW = (float)sizeInfo.NewSize.Width;
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float parentH = (float)sizeInfo.NewSize.Height;
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float renderW = (float)_hwndHost.ActualWidth;
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float renderH = (float)_hwndHost.ActualHeight;
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float scale = Math.Min(parentW / renderW, parentH / renderH); // 两方向取较小值, 保证 parent 覆盖 render
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renderW *= scale;
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renderH *= scale;
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_hwndHost.Width = renderW;
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_hwndHost.Height = renderH;
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}
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}
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}
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