Re: Scrolling/keeping textArea down

[Gianluigi <gradobag@xxxxxxxxxxx>]

Il 24/09/25 16:26, Lee ha scritto:
> On 9/24/25 9:39 AM, Lee wrote:
> > On 9/24/25 8:17 AM, Gianluigi wrote:
> > > OK, the example was too simple, this new one that I attach, here 
> > > works with both gtk and qt.
> >
> > Unfortunately, it does not work correctly here with GTK3.
> >
> > I don't have an issue with the Enter key adding text twice, so I 
> > commented out TextBox1.Clear for my convenience. The relevant code for 
> > reference:
> > [code]
> > Public Sub Button1_Click()
> >
> >    TextArea1.Text &= "\n\n" & TextBox1.Text
> >    ' TextBox1.Clear
> >    Wait 0.3
> >    TextArea1.EnsureVisible
> >
> > End
> > [/code]
> >
> > Interestingly, it does work as expected in some instances (described 
> > below) with Wait 0.3, Wait 0.1, and Wait. But, with Wait 0, the 
> > behavior of the scroll bar is immediately random.
> >
> > If the mouse cursor remains over the TextArea (control) and the Enter 
> > key is used to add text, it works as expected.
> >
> > But, if the mouse has entered the control and then leaves the control 
> > to click Button1, the newly added text is not displayed until the 
> > mouse re-enters the control. There is one exception to this.
> >
> > If when the mouse has entered the control, the scroll bar is scrolled 
> > by dragging it and then the mouse leaves the control to click Button1, 
> > it works as expected.
> >
> >
> > It is a weird bug indeed.
>
> I think I have found a workaround:
> [code]
> Public Sub Button1_Click()
>
>    TextArea1.Text &= "\n\n" & TextBox1.Text
>    ' TextBox1.Clear
>    Wait ' or Wait 0.1
>    TextArea1.SetFocus ' <--- THIS
>    TextArea1.EnsureVisible
>
> End
> [/code]

I tested it on a VM with Debian 13 LXDE and Gambas3 Stable installed, 
compiled as per these instructions:
https://www.gambas-it.org/wiki/index.php/Compilare_Gambas
my new code works well, and so does yours.
Unfortunately, if you use the QT libraries and don't include 
"TextBox1.Clear," the text is duplicated with both Cinnamon and LXDE.

[System]
Gambas=3.20.4 ab0099a (stable)
OperatingSystem=Linux
Distribution=Debian GNU/Linux 13 (trixie)
Kernel=6.12.48+deb13-amd64
Architecture=x86_64
Cores=4
Memory=3921M
Language=it_IT.UTF-8
Platform=x11
Desktop=LXDE
DesktopResolution=96
DesktopScale=7
WidgetTheme=clearlooks
Font=Sans,10
DarkTheme=False