Question: Append text with different style.

[bytecod3r]

Hi there,

I want to append texts with different style. E.g. the below code, I want the first "Hello" to be appended in bold, and the second "world" to in Italic, how can I set such styling for each append?
by the way, this library is awesome!

@FXML
private StyleClassedTextArea testTextArea;

void test(){
    testTextArea.appendText("Hello"); //to append Hello in Bold.
    testTextArea.appendText("World"); //to append Hello in Italic.
}

I tried looking into other issues and questions by others, but unfortunately didn't find the answer.

And second question, Which one is using less memory? InlineCssTextArea or StyleClassedTextArea or CodeArea?

[Jugen]

The simplest would be something like:

   int pos = testTextArea.getLength();
   testTextArea.replace( pos, pos, "Hello", Collections.singleton( "bold" ) );
   // Where "bold" refers to a style defined in your CSS file.

An alternative way to do it in two steps, is:

   int pos = testTextArea.getLength();
   testTextArea.appendText( "Hello" );
   testTextArea.setStyleClass( pos, testTextArea.getLength(), "bold" );
   // Where "bold" refers to a style defined in your CSS file.

With the next release you could also do it like so:

   testTextArea.setUseInitialStyleForInsertion( false );
   testTextArea.setTextInsertionStyle( Collections.singleton( "bold" ) );
   // Where "bold" refers to a style defined in your CSS file.
   testTextArea.appendText( "Hello" );
   testTextArea.setUseInitialStyleForInsertion( true );

[Jugen]

With regards to which one uses the least memory, it would technically probably be InlineCssTextArea but I think we are talking KiloBytes and not MegaBytes. You'd have to do some tests and see if there is a significant difference with your application.

All three are extended off GenericStyledArea with the only difference being how styling is handled.
So InlineCssTextArea uses pure Strings for styling whereas StyleClassedTextArea style strings are wrapped in a List, hence slightly more memory usage.

[Jugen]

I've added the following API for the next release to simplify this:

  append( text, styleClass )
  insert( position, text, styleClass )
  replace( start, end, text, styleClass )

[bytecod3r]

Hi Jugen,

Thanks for the reply. having append with style will be awesome!. Do you have any estimation when the next release would be out?

[Jugen]

Maybe this week, otherwise next week.