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added check for bad fonts see 61ceca8376/fontbox/src/main/java/org/apache/fontbox/ttf/HorizontalMetricsTable.java line 67 for matching code.

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This commit is contained in:
Adam Busbin
2020-04-23 14:58:48 -07:00
committed by Eliot Jones
parent 48aa9169c5
commit 00b9d416df
1 changed files with 10 additions and 2 deletions
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12
src/UglyToad.PdfPig.Fonts/TrueType/Parser/HorizontalMetricsTableParser.cs
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@@ -26,10 +26,18 @@
bytesRead += 4;
}
int numberNonHorizontal = glyphCount - metricCount;
// handle bad fonts with too many hmetrics
if (numberNonHorizontal < 0)
{
numberNonHorizontal = glyphCount;
}
// The number of entries in the left side bearing field per entry is number of glyphs - number of metrics
// For bearings over the metric count, the width is the same as the last width in advanced widths.
var additionalLeftSideBearings = new short[glyphCount - metricCount];
var additionalLeftSideBearings = new short[numberNonHorizontal];
for (var i = 0; i < additionalLeftSideBearings.Length; i++)
{