[Solved]Size of pushbuttons

alfah

Hey everybody,

im sorry to restart this thread, but the following code gives me values 480 and 640
@
cellBut[i][j]=new QPushButton();
connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));
ht=cellBut[0][0]->size().height();
wd=cellBut[0][0]->size().width();
@

by no means this is the size of the buttons, think its the screen size!!!!

I need pushbutton ht and width

Thank you

Eddy

did you use an iteration like :
@for(i = 0, i < max , ++i){
for(j=0, j<max, ++j){
//do your stuff
}
}@

alfah

eddy,

Yup i did,
@
for(int i=0;i<6;i++)
{
for(int j=0;j<7;j++)
{

       cellBut[i][j]=new QPushButton();
       connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));
       ht=cellBut[i][j]->size().height();
       wd=cellBut[i][j]->size().width();

    }
}

@

ht and wd gives me 640 and 480 respectivvely. which i think is the screen size and not individual button size.
:(

Chuck Gao

I think the problem is, you didn't set the pushbutton's size implicit. And you didn't use any layout management. So the value is not you want.

Eddy

what Chuck is saying is that you didn't use a parent or add them to a layout. That way they get a size.

have a look at this quick and dirty example:

@ int rows = 6;//this is convenient in case you want to alter the numbers
int cols = 7;
QPushButton* cellBut[rows][cols] ;

for(int i=0;i<rows;i++) {
    for(int j=0;j<cols;j++)     {
        cellBut[i][j]=new QPushButton(this);    //remark the use of a parent here
        //        connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));//better way see below

    }
}
qDebug() << cellBut[0][0]->size().height();
qDebug() << cellBut[0][0]->size().width();@

you might have a look at "QSignalMapper":http://doc.qt.nokia.com/4.7/qsignalmapper.html#details. There is a nice example of what you try to achieve.

alfah

chuck,

Yea, I have not set size of the pushbutton, But since it has been created, why doesn it give me the current size of the button. That it should do right?

:( Is it necessary to specify the size of the button while creating them?

Thank you

alfah

Eddy

in case you missed my topic :
have a look at my example. also the QSignalMapper link.

alfah

:) Thanks Eddy,

Got tht one, size now is 100 and 30 which is kinda resonable :)

alfah

Eddy

You're welcome. I'm glad you made it.

And did you have a look at the QSignalMapper example?
This will make your signal slots handling much easier.

alfah

:)

I checked that, :) its a lot more easier.

Thank you :) :)

Chuck Gao

Anyway, Enjoy Qt alfah :D

alfah

chuck,

:) well, im a beginner in Qt, so far it hasn been an enjoyment :),
gradually i hope i will love bugs:D

:)