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Add a way to not require a functioning font-setup 

New configuration-method SheetUtil.setIgnoreMissingFontSystem()
This allows to do a bit more on machines where no fonts are installed

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1899709 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Dominik Stadler 2022-04-10 16:45:02 +00:00
parent d970319239
commit 0f06cc7789
1 changed files with 22 additions and 2 deletions
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24
poi/src/main/java/org/apache/poi/ss/util/SheetUtil.java
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@ -97,6 +97,18 @@ public class SheetUtil {
*/
private static final FontRenderContext fontRenderContext = new FontRenderContext(null, true, true);
/**
* A system property which can be enabled to not fail when the
* font-system is not available on the current machine
*/
private static final boolean ignoreMissingFontSystem =
Boolean.parseBoolean(System.getProperty("org.apache.poi.ss.ignoreMissingFontSystem"));
/**
* Which default char-width to use if the font-system is unavailable.
*/
public static final int DEFAULT_CHAR_WIDTH = 5;
/**
* Compute width of a single cell
*
@ -282,8 +294,16 @@ public class SheetUtil {
AttributedString str = new AttributedString(String.valueOf(defaultChar));
copyAttributes(defaultFont, str, 0, 1);
TextLayout layout = new TextLayout(str.getIterator(), fontRenderContext);
return (int) layout.getAdvance();
try {
TextLayout layout = new TextLayout(str.getIterator(), fontRenderContext);
return (int) layout.getAdvance();
} catch (UnsatisfiedLinkError e) {
if (ignoreMissingFontSystem) {
return DEFAULT_CHAR_WIDTH;
}
throw e;
}
}
/**