where i can find ScrollDownToBottom signal for QtextEdit

moyin

Actually, i have a qtextedit consists of license acceptance text for my gui tool, i want to make "accept" button enable when user scroll down to bottom, to make sure that user have read whole text. so all i need is to have signal that i can emit when scroll comes down to bottom,
Is there any available slots for this or we hav to implement, in any case please help me out.

SGaist

Hi,

One way I see is to connect to the valueChanged of the vertical scroll bar and enable the button once it has reach the maximum value set on it.

moyin

@SGaist
thnks for reply, but i couldn't find such slot (valuechanged()),
i'm getting error saying that, there is no such slots

SGaist

It's a signal

moyin

@SGaist
i'm getting error saying that, there is no such signal

jsulm

@moyin Do you read documentation? The name of the signal is valueChanged as pointed out in the documentation @SGaist pointed to. Can you show the code?

mrjj

Hi
Just to be clear.
Its the scrollbar that has signal. not directly the TextEdit
so basically its

#include <QScrollBar>
...
QScrollBar* sbar = ui->textEdit->verticalScrollBar();
QPushButton* Acceptbutton = ui->pushButton;
Acceptbutton->setEnabled(false); // make it start off
connect(sbar, &QScrollBar::valueChanged, [sbar, Acceptbutton]() {
    Acceptbutton->setEnabled( sbar->value() == sbar->maximum() );
  } );

Note that if u scroll up again it becomes disabled again but
it might not matter for this use case :)