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Label and ToolTip: made inserting BASE_SIZE rule into HTML text more reliable

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This commit is contained in:
Karl Tauber
2021-02-04 15:10:27 +01:00
parent e5d3c08821
commit be507de6c1
3 changed files with 30 additions and 6 deletions
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22
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatLabelUI.java
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@@ -110,14 +110,26 @@ public class FlatLabelUI
c.getClientProperty( "html.disable" ) != Boolean.TRUE &&
needsFontBaseSize( text ) )
{
int headIndex = text.indexOf( "<head>" );
// BASE_SIZE rule is parsed in javax.swing.text.html.StyleSheet.addRule()
String style = "<style>BASE_SIZE " + c.getFont().getSize() + "</style>";
if( headIndex < 0 )
style = "<head>" + style + "</head>";
int insertIndex = headIndex >= 0 ? (headIndex + "<head>".length()) : "<html>".length();
String lowerText = text.toLowerCase();
int headIndex;
int styleIndex;
int insertIndex;
if( (headIndex = lowerText.indexOf( "<head>" )) >= 0 ) {
// there is a <head> tag --> insert after <head> tag
insertIndex = headIndex + "<head>".length();
} else if( (styleIndex = lowerText.indexOf( "<style>" )) >= 0 ) {
// there is a <style> tag --> insert before <style> tag
insertIndex = styleIndex;
} else {
// no <head> or <style> tag --> insert <head> tag after <html> tag
style = "<head>" + style + "</head>";
insertIndex = "<html>".length();
}
text = text.substring( 0, insertIndex )
+ style
+ text.substring( insertIndex );