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Code Issues Actions 5 Packages Projects Releases Wiki Activity

Better handling of TextDirection.Unknown word bounding box

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This commit is contained in:
BobLd
2020-01-16 15:43:01 +00:00
committed by Eliot Jones
parent 75821919a7
commit 75bd94e538
1 changed files with 50 additions and 11 deletions
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61
src/UglyToad.PdfPig/Content/Word.cs
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@@ -1,10 +1,10 @@
namespace UglyToad.PdfPig.Content namespace UglyToad.PdfPig.Content
{ {
using Core;
using System; using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Linq; using System.Linq;
using System.Text; using System.Text;
using Core;
/// <summary> /// <summary>
/// A word. /// A word.
@@ -60,7 +60,7 @@
tempTextDirection = TextDirection.Unknown; tempTextDirection = TextDirection.Unknown;
} }
(string, PdfRectangle) data; Tuple<string, PdfRectangle> data;
switch (tempTextDirection) switch (tempTextDirection)
{ {
@@ -82,7 +82,7 @@
case TextDirection.Unknown: case TextDirection.Unknown:
default: default:
data = GetBoundingBoxH(letters); data = GetBoundingBoxUnknown(letters);
break; break;
} }
@@ -94,7 +94,7 @@
} }
#region Bounding box #region Bounding box
private (string, PdfRectangle) GetBoundingBoxH(IReadOnlyList<Letter> letters) private Tuple<string, PdfRectangle> GetBoundingBoxH(IReadOnlyList<Letter> letters)
{ {
var builder = new StringBuilder(); var builder = new StringBuilder();
@@ -130,10 +130,10 @@
} }
} }
return (builder.ToString(), new PdfRectangle(minX, minY, maxX, maxY)); return new Tuple<string, PdfRectangle>(builder.ToString(), new PdfRectangle(minX, minY, maxX, maxY));
} }
private (string, PdfRectangle) GetBoundingBox180(IReadOnlyList<Letter> letters) private Tuple<string, PdfRectangle> GetBoundingBox180(IReadOnlyList<Letter> letters)
{ {
var builder = new StringBuilder(); var builder = new StringBuilder();
@@ -169,10 +169,10 @@
} }
} }
return (builder.ToString(), new PdfRectangle(maxX, maxY, minX, minY)); return new Tuple<string, PdfRectangle>(builder.ToString(), new PdfRectangle(maxX, maxY, minX, minY));
} }
private (string, PdfRectangle) GetBoundingBox90(IReadOnlyList<Letter> letters) private Tuple<string, PdfRectangle> GetBoundingBox90(IReadOnlyList<Letter> letters)
{ {
var builder = new StringBuilder(); var builder = new StringBuilder();
@@ -208,13 +208,13 @@
} }
} }
return (builder.ToString(), new PdfRectangle(new PdfPoint(maxX, maxY), return new Tuple<string, PdfRectangle>(builder.ToString(), new PdfRectangle(new PdfPoint(maxX, maxY),
new PdfPoint(maxX, minY), new PdfPoint(maxX, minY),
new PdfPoint(minX, maxY), new PdfPoint(minX, maxY),
new PdfPoint(minX, minY))); new PdfPoint(minX, minY)));
} }
private (string, PdfRectangle) GetBoundingBox270(IReadOnlyList<Letter> letters) private Tuple<string, PdfRectangle> GetBoundingBox270(IReadOnlyList<Letter> letters)
{ {
var builder = new StringBuilder(); var builder = new StringBuilder();
@@ -250,11 +250,50 @@
} }
} }
return (builder.ToString(), new PdfRectangle(new PdfPoint(minX, minY), return new Tuple<string, PdfRectangle>(builder.ToString(), new PdfRectangle(new PdfPoint(minX, minY),
new PdfPoint(minX, maxY), new PdfPoint(minX, maxY),
new PdfPoint(maxX, minY), new PdfPoint(maxX, minY),
new PdfPoint(maxX, maxY))); new PdfPoint(maxX, maxY)));
} }
private Tuple<string, PdfRectangle> GetBoundingBoxUnknown(IReadOnlyList<Letter> letters)
{
var builder = new StringBuilder();
for (var i = 0; i < letters.Count; i++)
{
builder.Append(letters[i].Value);
}
var minX = letters.Min(l => Min(l.GlyphRectangle.BottomLeft.X,
l.GlyphRectangle.BottomRight.X,
l.GlyphRectangle.TopLeft.X,
l.GlyphRectangle.TopRight.X));
var maxX = letters.Max(l => Max(l.GlyphRectangle.BottomLeft.X,
l.GlyphRectangle.BottomRight.X,
l.GlyphRectangle.TopLeft.X,
l.GlyphRectangle.TopRight.X));
var minY = letters.Min(l => Min(l.GlyphRectangle.BottomLeft.Y,
l.GlyphRectangle.BottomRight.Y,
l.GlyphRectangle.TopLeft.Y,
l.GlyphRectangle.TopRight.Y));
var maxY = letters.Max(l => Max(l.GlyphRectangle.BottomLeft.Y,
l.GlyphRectangle.BottomRight.Y,
l.GlyphRectangle.TopLeft.Y,
l.GlyphRectangle.TopRight.Y));
return new Tuple<string, PdfRectangle>(builder.ToString(), new PdfRectangle(minX, minY, maxX, maxY));
}
private double Min(double d1, double d2, double d3, double d4)
{
return Math.Min(d1, Math.Min(d2, Math.Min(d3, d4)));
}
private double Max(double d1, double d2, double d3, double d4)
{
return Math.Max(d1, Math.Max(d2, Math.Max(d3, d4)));
}
#endregion #endregion
/// <inheritdoc /> /// <inheritdoc />