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Qt-interest Archive, April 2007
how to remove a tab and how to remove a tab but page leaves?

Message 1 in thread

hi,
first say sorry if i confuse the concepts of tab,tabwidget,tabbar and page

        QTabWidget *tabwidget=new QTabWidget(this);
        QTextEdit *te1=new QTextEdit(this,"te1");
        QTextEdit *te2=new QTextEdit(this,"te2");
        tabwidget->addTab(te1,"tab1");
        tabwidget->addTab(te2,"tab2");
        setCentralWidget(tabwidget);
        tabwidget->show();
        tabwidget->showPage(te2);

now have create a tabwidget with two tabs ,each tab has a QTextEdit widget;

i want to remove a tab:
        tabwidget->removePage(tabwidget->currentPage());  //here what
does 'Page' stand for?
and one tab disappears           // if tab2 disappears,does qt free te2?

i want to remove a tab but leaves the QTextEdit widget:
(now only one tab exists)
first i use this :
        tabwidget->removePage(tabwidget->currentPage());  // i cannot see te1;
so i use this:
        tabwidget->hide();
        setCentralWidget(te1);                  // not work
        te1->raise();
        tel->show();

then i use this:
        setCentralWidget(te1);
        delete tabwidget;       // crash, does qt free te1 if i delete
tabwidget? but te1 is not tabwidget'
                                // child,
so i dont know how to remove a tab but leaves all widgets of this tab
( think firefox or konqueror , if you open a new tab with
'Location|New Tab' in konqueror, there will be
  two tabs ,each has a ' text browse widget ' .  if i close one tab,
this tab with its ' text browse widget'
  disappears, and another tab also disappears but its 'text browser
widget ' leaves!! )

regards
jiang jefix

( Sorry if i wrote bad English )

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Message 2 in thread

On 30.04.07 16:12:08, jiang jefix wrote:
> hi,
> first say sorry if i confuse the concepts of tab,tabwidget,tabbar and page

Are you ever reading any answers that people give you? I already told
you twice that you should be looking into hiding only the tabbar instead
of removing the tab.

>        QTextEdit *te1=new QTextEdit(this,"te1");
>        tabwidget->addTab(te1,"tab1");
> 
> then i use this:
>        setCentralWidget(te1);
>        delete tabwidget;       // crash, does qt free te1 if i delete
> tabwidget? but te1 is not tabwidget'
>                                // child,

When you execute addTab the given widget is reparented to the tabwidget,
thats why it crashes at that point.

Andreas

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Message 3 in thread

i'm sorry but this is the first time i asked here...
please tell me how to fix it

i have tried my best to fix it for several days, but i cannot solve it,
please please give me some help

thanks

2007/4/30, Andreas Pakulat <apaku@xxxxxx>:
> On 30.04.07 16:12:08, jiang jefix wrote:
> > hi,
> > first say sorry if i confuse the concepts of tab,tabwidget,tabbar and page
>
> Are you ever reading any answers that people give you? I already told
> you twice that you should be looking into hiding only the tabbar instead
> of removing the tab.
>
> >        QTextEdit *te1=new QTextEdit(this,"te1");
> >        tabwidget->addTab(te1,"tab1");
> >
> > then i use this:
> >        setCentralWidget(te1);
> >        delete tabwidget;       // crash, does qt free te1 if i delete
> > tabwidget? but te1 is not tabwidget'
> >                                // child,
>
> When you execute addTab the given widget is reparented to the tabwidget,
> thats why it crashes at that point.
>
> Andreas
>
> --
> You'll wish that you had done some of the hard things when they were easier
> to do.
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>

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Message 4 in thread

On 30.04.07 22:32:23, jiang jefix wrote:
> i'm sorry but this is the first time i asked here...

Yes, but you asked the same thing already twice on kde-devel.

> please tell me how to fix it
> 
> i have tried my best to fix it for several days, but i cannot solve it,
> please please give me some help

I already gave you the answer in two mails on kde-devel.

Andreas

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Message 5 in thread

i'm so stupid!!
mail form kde-devel in my gmail box title with 'kde-devel Digest, Vol
*, Issue *'
i never see my subject post in kde-devel,i thought there's no answer,
well,it all comes with 'kde-devel Digest, Vol *, Issue *'
why not kde-devel post mails single as qt-devel does?
so that i wouldnt check every 'kde-devel Digest, Vol *, Issue  *' to look for my
post,

thanks for your suggestions and answers, i will try it later :-)

2007/4/30, Andreas Pakulat <apaku@xxxxxx>:
> On 30.04.07 22:32:23, jiang jefix wrote:
> > i'm sorry but this is the first time i asked here...
>
> Yes, but you asked the same thing already twice on kde-devel.
>
> > please tell me how to fix it
> >
> > i have tried my best to fix it for several days, but i cannot solve it,
> > please please give me some help
>
> I already gave you the answer in two mails on kde-devel.
>
> Andreas
>
> --
> Let me put it this way: today is going to be a learning experience.
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>

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Message 6 in thread

hi,again...

i have tried your suggestion
//////        tabwidget->addTab(e,"tab1");

SLOT_closeTab()
{
         if(tab_nums==1)
                return;
        else if(tab_nums==2){
tabwidget->removePage(tabwidget->currentPage());
                setCentralWidget(e);
                tabwidget->setTabBarHidden(true);
                e->raise();
                e->show();
                tab_nums--;
                return;
        }
else{
                tab_nums--;
                tabwidget->removePage(tabwidget->currentPage());
        }

it almost reach !!!
if there's two tabs and i click closeTab( SLOT_closeTab())
no tab exists, e is shown,but there's a white area between
menubar and e ( it's the place of original tab and tabbars)
i have set tabbar hidden,why leaves a white area?

thanks,


2007/4/30, jiang jefix <jefix214@xxxxxxxxx>:
> i'm so stupid!!
> mail form kde-devel in my gmail box title with 'kde-devel Digest, Vol
> *, Issue *'
> i never see my subject post in kde-devel,i thought there's no answer,
> well,it all comes with 'kde-devel Digest, Vol *, Issue *'
> why not kde-devel post mails single as qt-devel does?
> so that i wouldnt check every 'kde-devel Digest, Vol *, Issue  *' to look for my
> post,
>
> thanks for your suggestions and answers, i will try it later :-)
>
> 2007/4/30, Andreas Pakulat <apaku@xxxxxx>:
> > On 30.04.07 22:32:23, jiang jefix wrote:
> > > i'm sorry but this is the first time i asked here...
> >
> > Yes, but you asked the same thing already twice on kde-devel.
> >
> > > please tell me how to fix it
> > >
> > > i have tried my best to fix it for several days, but i cannot solve it,
> > > please please give me some help
> >
> > I already gave you the answer in two mails on kde-devel.
> >
> > Andreas
> >
> > --
> > Let me put it this way: today is going to be a learning experience.
> >
> > --
> > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
> > List archive and information: http://lists.trolltech.com/qt-interest/
> >
> >
>

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Message 7 in thread

On 30.04.07 23:51:31, jiang jefix wrote:
> i'm so stupid!!
> mail form kde-devel in my gmail box title with 'kde-devel Digest, Vol
> *, Issue *'
> i never see my subject post in kde-devel,i thought there's no answer,
> well,it all comes with 'kde-devel Digest, Vol *, Issue *'
> why not kde-devel post mails single as qt-devel does?

Because you configured it that way in the mailman interface when you
subscribed. By default the "use a digest" is off.

Andreas

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Message 8 in thread

yes,
please take a look at pre-post

thanks

2007/5/1, Andreas Pakulat <apaku@xxxxxx>:
> On 30.04.07 23:51:31, jiang jefix wrote:
> > i'm so stupid!!
> > mail form kde-devel in my gmail box title with 'kde-devel Digest, Vol
> > *, Issue *'
> > i never see my subject post in kde-devel,i thought there's no answer,
> > well,it all comes with 'kde-devel Digest, Vol *, Issue *'
> > why not kde-devel post mails single as qt-devel does?
>
> Because you configured it that way in the mailman interface when you
> subscribed. By default the "use a digest" is off.
>
> Andreas
>
> --
> Look afar and see the end from the beginning.
>
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/
>
>

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