以銳利的DX查找GlyphRun的寬度

我無法設法使用銳利的DX來計算glyphRun的寬度。以下是我用來渲染glyphRun的代碼，並且需要將字符串呈現爲char，如下所示。以銳利的DX查找GlyphRun的寬度

private void RenderGlyphRun(FontFace fontFace) 
    { 
     GlyphRun glyphRun = new GlyphRun(); 
     glyphRun.FontFace = fontFace; 
     glyphRun.FontSize = 23; 
     left = 50; 
     top = 50; 

     string word = "Hello World"; 
     foreach (char letter in word) 
     { 
      string stringToBeRendered = letter.ToString(); 
      int[] codePoints = new int[stringToBeRendered.Length]; 

      char[] charsToBeRendered = stringToBeRendered.ToCharArray(); 
      for (int i = 0; i < charsToBeRendered.Length; i++) 
      { 
       codePoints[i] = (int)charsToBeRendered[i]; 
      } 
      short[] glyphIndices = fontFace.GetGlyphIndices(codePoints); 

      glyphRun.Indices = glyphIndices; 
      var BrushColor = SharpDX.Color.Black; 

      SharpDX.DirectWrite.Matrix mtrx = new SharpDX.DirectWrite.Matrix(); 
      mtrx.M11 = 1F; 
      mtrx.M12 = 0; 
      mtrx.M21 = 0; 
      mtrx.M22 = 1F; 
      mtrx.Dx = 0; 
      mtrx.Dy = 0; 

      GlyphMetrics[] metrics = fontFace.GetGdiCompatibleGlyphMetrics(23, 1, mtrx, false, glyphIndices, false); 

      FontMetrics metr = fontFace.GetGdiCompatibleMetrics(23, 1, new SharpDX.DirectWrite.Matrix()); 
      _pRenderTarget.DrawGlyphRun(new SharpDX.DrawingPointF(left, top), glyphRun, new SharpDX.Direct2D1.SolidColorBrush(_pRenderTarget, BrushColor), MeasuringMode.GdiClassic); 

      left += (metrics[0].AdvanceWidth - metrics[0].RightSideBearing + metrics[0].LeftSideBearing)/100;     
     } 
    }

呈現的字符串中字符的間距非常不同。請幫我解決一下這個。

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2013-01-08 suresh

@suresh，

就可以計算出每個字形寬度在glyphRun像下面

clusterwidth=glyphRun.glyphRun.Advances[Index]

在此基礎上就可以計算出總glyphRun寬度像下面

for(int i=0; i<glyphRun.Indices.Length; i++) 
{ 
totalWidth+=glyphRun.Advances[i]; 
}

來源

2013-01-18 19:01:18 pashaplus

+1 to pasha加上指引我在正確的方向。

我需要做同樣的事情，我用一個簡單的LINQ表達式來得到這樣的總和。

var glyphRunWidth = drawing.GlyphRun.AdvanceWidths.Sum(a => a);

來源

2014-12-23 23:10:15

以銳利的DX查找GlyphRun的寬度

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