Italic textField cuts off by autoSize property

itlancer commented 5 years ago

Problem Description

Italic TextField (italic property of TextFormat is true) cuts off last symbol when autoSize property used. No matter font and size. It's very old bug described even there in 2009: http://stackoverflow.com/questions/1516391/textfield-autosizeitalics-cuts-of-last-character It has been tested with many different Flash Player, AIR versions and devices and its architectures even with latests AIR 32.0.0.144 beta and AIR 33.0.1.220. Always the same problem.

Tracker link: https://tracker.adobe.com/#/view/AIR-3810978

Steps to Reproduce

Create TextField with italic formatting and set autoSize property to TextFieldAutoSize.LEFT, for example. Launch code below.

var textFormat:TextFormat = new TextFormat();
textFormat.italic = true;
textFormat.size = 72;
var textField:TextField = new TextField();
textField.defaultTextFormat = textFormat;
textField.text = "Italic text cuts off";
textField.autoSize = TextFieldAutoSize.LEFT;
this.addChild(textField);

Actual Result: Last symbol cuts off. See attached screenshot.

Expected Result: Autosized TextField field with correct displaying all symbols.

Known Workarounds

Manually control size of TextField field like here http://stackoverflow.com/questions/1516391/textfield-autosizeitalics-cuts-of-last-character

ajwfrost commented 4 years ago

FYI one of the guys has investigated this, we get text metrics back from Android or whichever platform it is, and these don't appear to take account of italic text like this: https://stackoverflow.com/questions/6745047/android-measuretext-on-paint-object-for-italic-rendered-fonts

So it's a bit of a workaround but if we detect the character is italic, we can add some additional width for the field based on the height of the text and the italic slant (Android apparently has 0.25; Flash uses 0.21 for embedded rendering)...