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added support for new line break in stampController (#2370)

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added support for new line in stampController

Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>
This commit is contained in:
Sai Kumar 2024-12-02 23:18:19 +05:30 committed by GitHub
parent 04ccdf6f76
commit 3c0a8071dc
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GPG Key ID: B5690EEEBB952194
1 changed files with 17 additions and 5 deletions
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src/main/java/stirling/software/SPDF/controller/api/misc/StampController.java
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@ -229,10 +229,22 @@ public class StampController {
calculatePositionY(
pageSize, position, calculateTextCapHeight(font, fontSize), margin);
}
// Split the stampText into multiple lines
String[] lines = stampText.split("\\\\n");
// Calculate dynamic line height based on font ascent and descent
float ascent = font.getFontDescriptor().getAscent();
float descent = font.getFontDescriptor().getDescent();
float lineHeight = ((ascent - descent) / 1000) * fontSize;
contentStream.beginText();
contentStream.setTextMatrix(Matrix.getRotateInstance(Math.toRadians(rotation), x, y));
contentStream.showText(stampText);
for (int i = 0; i < lines.length; i++) {
String line = lines[i];
// Set the text matrix for each line with rotation
contentStream.setTextMatrix(
Matrix.getRotateInstance(Math.toRadians(rotation), x, y - (i * lineHeight)));
contentStream.showText(line);
}
contentStream.endText();
}