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add:WinRT墨迹识别

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CJKmkp
2026-03-28 18:40:18 +08:00
parent dc9fb26260
commit 97bdf78b08
5 changed files with 121 additions and 49 deletions
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Ink Canvas/Helpers/WinRtInkShapeRecognizer.cs
+67 -33
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@@ -46,41 +46,70 @@ namespace Ink_Canvas.Helpers
/// <summary>由 <see cref="ModernInkProcessor"/> / <see cref="InkRecognitionManager"/> 在 UI 上 await（勿在收笔回调中同步阻塞）。</summary>
internal static async Task<InkShapeRecognitionResult> RecognizeShapeAsync(StrokeCollection strokes)
{
var analyzer = new WinRtInkAnalyzer();
foreach (Stroke s in strokes)
if (!IsApiAvailable || strokes == null || strokes.Count == 0)
return InkShapeRecognitionResult.Empty;
try
{
var inkStroke = CreateInkStrokeFromWpf(s);
if (inkStroke == null)
continue;
var analyzer = new WinRtInkAnalyzer();
var added = 0;
foreach (Stroke s in strokes)
{
var inkStroke = CreateInkStrokeFromWpf(s);
if (inkStroke == null)
continue;
analyzer.AddDataForStroke(inkStroke);
analyzer.SetStrokeDataKind(
inkStroke.Id,
global::Windows.UI.Input.Inking.Analysis.InkAnalysisStrokeKind.Drawing);
analyzer.AddDataForStroke(inkStroke);
analyzer.SetStrokeDataKind(
inkStroke.Id,
global::Windows.UI.Input.Inking.Analysis.InkAnalysisStrokeKind.Drawing);
added++;
}
if (added == 0)
{
LogHelper.WriteLogToFile(
"WinRT 形状识别：未能从 WPF 笔迹生成 InkStroke（检查 StylusPoints/DrawingAttributes）。",
LogHelper.LogType.Warning);
return InkShapeRecognitionResult.Empty;
}
await analyzer.AnalyzeAsync().AsTask().ConfigureAwait(true);
var drawing = FindPrimaryDrawing(analyzer);
if (drawing == null)
{
LogHelper.WriteLogToFile("WinRT 形状识别：分析完成但未找到 InkAnalysisInkDrawing 节点。", LogHelper.LogType.Trace);
return InkShapeRecognitionResult.Empty;
}
if (drawing.DrawingKind == global::Windows.UI.Input.Inking.Analysis.InkAnalysisDrawingKind.Drawing)
{
LogHelper.WriteLogToFile("WinRT 形状识别：结果为 Drawing（未识别为规则形状）。", LogHelper.LogType.Trace);
return InkShapeRecognitionResult.Empty;
}
var name = MapDrawingKindToShapeName(drawing.DrawingKind);
if (string.IsNullOrEmpty(name) || name == "Drawing")
return InkShapeRecognitionResult.Empty;
var winPts = CopyWinRtPoints(drawing);
var hot = ToWpfPointCollection(winPts);
var c = drawing.Center;
var centroid = new SysPoint(c.X, c.Y);
BoundsFromPoints(winPts, out double w, out double h);
var toRemove = new StrokeCollection();
foreach (Stroke s in strokes)
toRemove.Add(s);
return new InkShapeRecognitionResult(name, centroid, hot, w, h, toRemove);
}
await analyzer.AnalyzeAsync().AsTask().ConfigureAwait(true);
var drawing = FindPrimaryDrawing(analyzer);
if (drawing == null ||
drawing.DrawingKind == global::Windows.UI.Input.Inking.Analysis.InkAnalysisDrawingKind.Drawing)
catch (Exception ex)
{
LogHelper.WriteLogToFile("WinRtInkShapeRecognizer 异常: " + ex, LogHelper.LogType.Error);
return InkShapeRecognitionResult.Empty;
var name = MapDrawingKindToShapeName(drawing.DrawingKind);
if (string.IsNullOrEmpty(name) || name == "Drawing")
return InkShapeRecognitionResult.Empty;
var winPts = CopyWinRtPoints(drawing);
var hot = ToWpfPointCollection(winPts);
var c = drawing.Center;
var centroid = new SysPoint(c.X, c.Y);
BoundsFromPoints(winPts, out double w, out double h);
var toRemove = new StrokeCollection();
foreach (Stroke s in strokes)
toRemove.Add(s);
return new InkShapeRecognitionResult(name, centroid, hot, w, h, toRemove);
}
}
private static global::Windows.UI.Input.Inking.InkStroke CreateInkStrokeFromWpf(Stroke stroke)
@@ -117,7 +146,8 @@ namespace Ink_Canvas.Helpers
{
global::Windows.UI.Input.Inking.Analysis.InkAnalysisInkDrawing best = null;
double bestArea = -1;
Visit(analyzer.AnalysisRoot);
if (analyzer?.AnalysisRoot != null)
Visit(analyzer.AnalysisRoot);
return best;
void Visit(global::Windows.UI.Input.Inking.Analysis.IInkAnalysisNode node)
@@ -135,7 +165,11 @@ namespace Ink_Canvas.Helpers
}
}
foreach (var child in node.Children)
// WinRT IInkAnalysisNode.Children 可能为 null，不可直接 foreach。
var children = node.Children;
if (children == null) return;
foreach (var child in children)
Visit(child);
}
}