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增加SFMLExtension

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This commit is contained in:
ww-rm
2025-04-03 20:14:13 +08:00
parent 510653732d
commit cc7beb7670
3 changed files with 76 additions and 79 deletions
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56
SpineViewer/Exporter/ExportHelper.cs
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@@ -33,7 +33,7 @@ namespace SpineViewer.Exporter
}
/// <summary>
/// SFML.Graphics.Image 帧对象包装类
/// SFML.Graphics.Image 帧对象包装类, 将接管给定的 image 对象生命周期
/// </summary>
public class SFMLImageVideoFrame(SFML.Graphics.Image image) : IVideoFrame, IDisposable
{
@@ -64,13 +64,7 @@ namespace SpineViewer.Exporter
/// <summary>
/// 获取 Winforms Bitmap 对象
/// </summary>
public Bitmap CopyToBitmap()
{
image.SaveToMemory(out var imgBuffer, "bmp");
using var stream = new MemoryStream(imgBuffer);
using var bitmap = new Bitmap(stream);
return new(bitmap); // 必须重复构造一个副本才能摆脱对流的依赖, 否则之后使用会报错
}
public Bitmap CopyToBitmap() => image.CopyToBitmap();
}
/// <summary>
@@ -87,51 +81,5 @@ namespace SpineViewer.Exporter
else if (imageFormat == ImageFormat.Exif) return ".jpeg";
else return $".{imageFormat.ToString().ToLower()}";
}
#region 包围盒辅助函数
/// <summary>
/// 获取某个包围盒下合适的视图
/// </summary>
public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, Padding padding)
=> bounds.GetView((uint)resolution.Width, (uint)resolution.Height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
/// <summary>
/// 获取某个包围盒下合适的视图
/// </summary>
public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, Padding padding)
=> bounds.GetView(width, height, (uint)padding.Left, (uint)padding.Right, (uint)padding.Top, (uint)padding.Bottom);
/// <summary>
/// 获取某个包围盒下合适的视图
/// </summary>
public static SFML.Graphics.View GetView(this RectangleF bounds, Size resolution, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
=> bounds.GetView((uint)resolution.Width, (uint)resolution.Height, paddingL, paddingR, paddingT, paddingB);
/// <summary>
/// 获取某个包围盒下合适的视图
/// </summary>
public static SFML.Graphics.View GetView(this RectangleF bounds, uint width, uint height, uint paddingL = 1, uint paddingR = 1, uint paddingT = 1, uint paddingB = 1)
{
float sizeX = bounds.Width;
float sizeY = bounds.Height;
float innerW = width - paddingL - paddingR;
float innerH = height - paddingT - paddingB;
float scale = 1;
if (sizeY / sizeX < innerH / innerW)
scale = sizeX / innerW; // 相同的 X, 视窗 Y 更大
else
scale = sizeY / innerH; // 相同的 Y, 视窗 X 更大
var x = bounds.X + bounds.Width / 2 + (paddingL - (float)paddingR) * scale;
var y = bounds.Y + bounds.Height / 2 + (paddingT - (float)paddingB) * scale;
var viewX = width * scale;
var viewY = height * scale;
return new(new(x, y), new(viewX, -viewY));
}
#endregion
}
}