Non-Latin Text Rendering in Various Components

[mnsp]

Just for the record, here’s a list of all the threads on this topic that I’ve found, in chronological order:
2011

Updating the Juce Text System

A status update for those who are interested. I have completed the first stage of work which was creating the AttributedString classes and getting rendering working using the CoreGraphics renderer on Mac OS X. The next step is to start implementing all the Glyph classes I previously mentioned so I can get the software renderer on Mac OS X working. Now onto some examples. The boxes in the images are all Labels with a border. The Text Engine 1 boxes represent the current Juce Text Rendering Syst…

2014

Showing RTL text in a TextButton

Hi all, As I continue my journey into JUCE, I am attempting to get my sample code running. I noticed that one of my buttons was displaying empty squares, and I fixed that by overriding "getFont()" so the Hebrew text displays. However, it is drawn left-to-right, and I cannot find any way to tell the TextButton it should render right-to-left.  Is there something I'm missing? I did see the discussions on the text rendering system, but those are all several years old.   How can I best accomplis…

TextButton and non latin text support

Hi Jules,   I am wondering whether the default juce TextButton should use TextLayout in order to handle correctly non latin character display.   What do you think ?   Thanks,

2015

Graphics drawText etc do not behave properly for RTL text

We've been trying to figure out why Hebrew text is drawn incorrectly in JUCE (in e.g. buttons , labels etc) I finally figured out that 'drawText', etc simply don't work correctly. When I replaced (in my own LookAndFeel) the call to drawText* with AttributedString draw, the text was drawn correctly.   The manifestation of the problem is that chunks of the text will not appear, especially if there is a space (e.g. not-RTL) char inside the string.  If the text were "ABC DEF" (assuming they are R…

2016

RTL LTR Attributed String Addition Requested

I added some code in juce_mac_Fonts.mm to handle the reading direction from an AttributedString. Would it be possible to put this into the code base?   In  static CFAttributedStringRef createCFAttributedString (const AttributedString& text) the following was added.   CTWritingDirection ctWritingDirection = kCTWritingDirectionNatural; switch (text.getReadingDirection()){ case AttributedString::ReadingDirection::natural: break; case AttributedString::Readin…

2020

TextEditor bold/italic glyph // fallback font support on macOS

Hi guys, we’re trying to use a JUCE TextEditor with Japanese and Chinese glyphs while also using italic and bold text formatting. It turns out the font we’re using (Arial Unicode MS) doesn’t have bold and italic typefaces. Italic is apparently hacked by JUCE’s font drawing using a transform but bold does not work that way. I tried to find other fonts I could use that support both Chinese/Japanese glyphs and also bold but couldn’t find any. Is there an easy way to use the default system font wh…

2021

AttributedString ignores font.withHorizontalScale()

I’d really like to know if this is intended behaviour, because if so I can’t use AttributedStrings in various components, because I want to set font.withHorizontalScale() slightly on my main font. Vanilla JUCE GUI App, Mac OSX Mojave, Juce 6.0.8 (problem exists before this however): Project download: AttributedStringTest.zip (10.3 KB) [attr] Code: void MainComponent::paint (juce::Graphics& g) { g.fillAll (getLookAndFeel().findColour (juce::ResizableWindow::backgroundColourId)); au…

2022

Unicode text rendering & editing in 2022

Hi all, I’m wondering what the situation is regarding rendering and editing Unicode text with JUCE in 2022. Obviously, there are lots of historical threads about this, with most official responses simply stating that it’s incomplete and/or not possible yet, but a lot has changed recently - not least the PACE acquisition of JUCE a few months back. For example, with JUCE 6.1.5 I can render Unicode text using juce::AttributedText. There are some issues (see Unicode Rendering Bug (Mac & Windows),…