55 lines
1.8 KiB
C#
55 lines
1.8 KiB
C#
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// DirectXTK MakeSpriteFont tool
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248929
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using System.Drawing;
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namespace MakeSpriteFont
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{
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// Crops unused space from around the edge of a glyph bitmap.
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public static class GlyphCropper
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{
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public static void Crop(Glyph glyph)
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{
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// Crop the top.
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while ((glyph.Subrect.Height > 1) && BitmapUtils.IsAlphaEntirely(0, glyph.Bitmap, new Rectangle(glyph.Subrect.X, glyph.Subrect.Y, glyph.Subrect.Width, 1)))
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{
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glyph.Subrect.Y++;
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glyph.Subrect.Height--;
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glyph.YOffset++;
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}
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// Crop the bottom.
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while ((glyph.Subrect.Height > 1) && BitmapUtils.IsAlphaEntirely(0, glyph.Bitmap, new Rectangle(glyph.Subrect.X, glyph.Subrect.Bottom - 1, glyph.Subrect.Width, 1)))
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{
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glyph.Subrect.Height--;
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}
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// Crop the left.
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while ((glyph.Subrect.Width > 1) && BitmapUtils.IsAlphaEntirely(0, glyph.Bitmap, new Rectangle(glyph.Subrect.X, glyph.Subrect.Y, 1, glyph.Subrect.Height)))
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{
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glyph.Subrect.X++;
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glyph.Subrect.Width--;
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glyph.XOffset++;
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}
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// Crop the right.
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while ((glyph.Subrect.Width > 1) && BitmapUtils.IsAlphaEntirely(0, glyph.Bitmap, new Rectangle(glyph.Subrect.Right - 1, glyph.Subrect.Y, 1, glyph.Subrect.Height)))
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{
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glyph.Subrect.Width--;
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glyph.XAdvance++;
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}
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}
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}
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}
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