lsm/PdfPig
1
0
Fork 0
mirror of https://github.com/UglyToad/PdfPig.git synced 2026-03-10 00:23:29 +08:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

Get correct text orientation when base line points are equal and fix #741

Browse Source
This commit is contained in:
BobLd
2024-08-08 13:53:24 +01:00
parent 4845f43696
commit 689c127cd9
1 changed files with 43 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/UglyToad.PdfPig/Content/Letter.cs
View File

@@ -137,8 +137,14 @@
private TextOrientation GetTextOrientation()
{
if (System.Math.Abs(StartBaseLine.Y - EndBaseLine.Y) < 10e-5)
if (Math.Abs(StartBaseLine.Y - EndBaseLine.Y) < 10e-5)
{
if (Math.Abs(StartBaseLine.X - EndBaseLine.X) < 10e-5)
{
// Start and End point are the same
return GetTextOrientationRot();
}
if (StartBaseLine.X > EndBaseLine.X)
{
return TextOrientation.Rotate180;
@@ -147,8 +153,14 @@
return TextOrientation.Horizontal;
}
if (System.Math.Abs(StartBaseLine.X - EndBaseLine.X) < 10e-5)
if (Math.Abs(StartBaseLine.X - EndBaseLine.X) < 10e-5)
{
if (Math.Abs(StartBaseLine.Y - EndBaseLine.Y) < 10e-5)
{
// Start and End point are the same
return GetTextOrientationRot();
}
if (StartBaseLine.Y > EndBaseLine.Y)
{
return TextOrientation.Rotate90;
@@ -160,6 +172,35 @@
return TextOrientation.Other;
}
private TextOrientation GetTextOrientationRot()
{
double rotation = GlyphRectangle.Rotation;
int rotationInt = (int)Math.Round(rotation, MidpointRounding.AwayFromZero);
if (Math.Abs(rotation - rotationInt) >= 10e-5)
{
return TextOrientation.Other;
}
switch (rotationInt)
{
case 0:
return TextOrientation.Horizontal;
case -90:
return TextOrientation.Rotate90;
case 180:
case -180:
return TextOrientation.Rotate180;
case 90:
return TextOrientation.Rotate270;
}
throw new Exception($"Could not find TextOrientation for rotation '{rotation}'.");
}
/// <summary>
/// Produces a string representation of the letter and its position.
/// </summary>