Multiline text rendering is misaligned

[pjanx]

Checklist

• [X] I have searched the issue tracker for open issues that relate to the same problem, before opening a new one.
• [X] This issue only relates to a single bug. I will open new issues for any other problems.

Describe the bug

Fyne seemingly doesn't bother to pixel align text when rendering, and so it often ends up fuzzy. See the animated screenshot.

How to reproduce

Have a lot of lines of text in your application.

Screenshots

Example code

package main

import (
    "strings"
    "time"

    "fyne.io/fyne/v2"
    "fyne.io/fyne/v2/app"
    "fyne.io/fyne/v2/widget"
)

func main() {
    a := app.New()
    w := a.NewWindow("Bugs")
    w.Resize(fyne.NewSize(480, 360))
    me := widget.NewMultiLineEntry()
    w.SetContent(me)

    long := strings.Repeat("Lorem ipsum dolor sit amet\n", 60)
    short := strings.Repeat("Lorem ipsum dolor sit amet\n", 40)
    var which bool
    t := time.NewTicker(time.Second / 2)
    go func() {
        for {
            <-t.C
            which = !which
            if which {
                me.SetText(long)
            } else {
                me.SetText(short)
            }
            me.TypedKey(&fyne.KeyEvent{Name: fyne.KeyPageDown})
        }
    }()
    w.ShowAndRun()
}

Fyne version

2.5.2

Go compiler version

1.23.2

Operating system and version

Linux

Additional Information

No response

[andydotxyz]

It does try to pixel align the text. It seems you have found a case where it fails.

Can you please provide full information about your monitor / resolution and any scaling applied by the operating system?

Also, if you run "fyne_demo" and go to the Advanced screen what does it report for scaling?

[pjanx]

This was recorded without scaling, just scaled up twice without filtering to make it clearer, but I can generally test it just about everywhere, if you wait.

[andydotxyz]

Please check the scale info from fyne_demo. User scale settings are only 1 of 3 possible sources of scaling on the output device.

[pjanx]

Please check the scale info from fyne_demo

Like I stated, and also just run the example,

Problematic platforms include:

• Linux (no scaling)
• Windows (no scaling, compiled via fyne-cross)
• Android (scale 3.00, texture scale 1.00)
• macOS (scale 1.00, texture scale 2.00)

[andydotxyz]

Perfect thanks