window crazing

[yuvaraj.yadav]

Hi

I hope you people will encourage me...

Still I am reading the documents ... At same time trying with sample programs...

Already Wysto told me don't use the list view to add widgets.... I don't use here after...

Sorry , I am learning slowly....here i have been trying one small sample application

Nothing displaying the Tweets...I displayed tweets in listview with somebody help..

Here i am using the Event methods to get the current window position...and i assign the width to my tweet..

please see my code.

To display the tweet

QStandardItemModel * model = new QStandardItemModel(this);
    for (int i = 0; i < 21; ++i)
    {
        QStandardItem * item = new QStandardItem;
        model->appendRow(item);
    }
    ui->listView->setModel(model);
    for (int i = 0; i < 21; ++i)
    {   Tweet * t = new Tweet(this);
        t->resize(ui->listView->size().width(), t->size().height());
        qDebug("width:%d",ui->listView->size().width());
        qDebug("Height:%d", t->size().height());
        model->item(i)->setSizeHint(t->size());
        ui->listView->setIndexWidget(model->item(i)->index(), t);
  }
}

QStandardItemModel * model = new QStandardItemModel(this);
    for (int i = 0; i < 21; ++i)
    {
        QStandardItem * item = new QStandardItem;
        model->appendRow(item);
    }
    ui->listView->setModel(model);
    for (int i = 0; i < 21; ++i)
    {   Tweet * t = new Tweet(this);
        t->resize(ui->listView->size().width(), t->size().height());
        qDebug("width:%d",ui->listView->size().width());
        qDebug("Height:%d", t->size().height());
        model->item(i)->setSizeHint(t->size());
        ui->listView->setIndexWidget(model->item(i)->index(), t);
  }
}

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my event function

void MainWindow::resizeEvent( QResizeEvent *event )
{
  emit resizeView( event->size().width(), event->oldSize().width() );
}

void MainWindow::resizeEvent( QResizeEvent *event )
{
  emit resizeView( event->size().width(), event->oldSize().width() );
}

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this one emit the resizeView and call the resizeData slot...

My slot code is

void MainWindow ::resizeData(int width, int oldWidth)
{
 
 qDebug("current width:%d and old width : %d", width,oldWidth);
 
  QSize itemSize;
  Tweet *aTweet;
  for ( int i = 0; i < 21; i++ ) {
    aTweet = t;
    aTweet->resize( width , aTweet->size().height() );
    itemSize = model->item(i)->sizeHint();
    itemSize.rwidth() += width - oldWidth;
    itemSize.rheight() = aTweet->size().height();
    model->item(i)->setSizeHint( itemSize );
  }
}

void MainWindow ::resizeData(int width, int oldWidth)
{

 qDebug("current width:%d and old width : %d", width,oldWidth);

  QSize itemSize;
  Tweet *aTweet;
  for ( int i = 0; i < 21; i++ ) {
    aTweet = t;
    aTweet->resize( width , aTweet->size().height() );
    itemSize = model->item(i)->sizeHint();
    itemSize.rwidth() += width - oldWidth;
    itemSize.rheight() = aTweet->size().height();
    model->item(i)->setSizeHint( itemSize );
  }
}

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here i resized my tweet width according to the window width....

If i try to modify the window window size, the window is crazed(closed)...




Please help me to solve this issue

[Lykurg]

Already Wysto told me don't use the list view to add widgets.... I don't use here after...

He is called wysota and it looks like it's not enough for you that he told you to better use QListWidget. So I by myself tell you to use QListWidget. Even if I don't know what your problem is but for a bloody rookies that would be the best start. And by the way: this is the 7th thread always about the same topic...

[yuvaraj.yadav]

I don't have any sources to get help except Qtforum, whats why i posted.

[wysota]

I have to finally ask this question - what is the base class for "Tweet"?

[faldzip]

I don't have any sources to get help except Qtforum, whats why i posted.

You have. Just open Qt Assistant and Qt Examples & Demos

[yuvaraj.yadav]

QWidget is the base class for Tweet class

[wysota]

QWidget is the base class for Tweet class

So why do you keep trying to push the widget to the list view? Why don't you use QScrollArea as I suggested a few times before?

QScrollArea *sa = new QScrollArea;
QWidget *viewport = new QWidget;
QVBoxLayout *l = new QVBoxLayout(viewport);
sa->setWidget(viewport);
sa->setWidgetResizable(true);
for(int i = 0; i<10; i++){
  l->addWidget(new Tweet);
}

QScrollArea *sa = new QScrollArea;
QWidget *viewport = new QWidget;
QVBoxLayout *l = new QVBoxLayout(viewport);
sa->setWidget(viewport);
sa->setWidgetResizable(true);
for(int i = 0; i<10; i++){
  l->addWidget(new Tweet);
}

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[yuvaraj.yadav]

Our team asked me to use the list view only. thats why. Already we have worked in mobile side

ok i have asked one issue regarding the resize problem...How do i solve that one.... I am getting problem,While i am trying to modify the tweet width with window current width...


please help me.


Thanks

Yuvaraj R

[wysota]

Our team asked me to use the list view only.

In that case implement a delegate for your list instead of a widget.

ok i have asked one issue regarding the resize problem...How do i solve that one.... I am getting problem,While i am trying to modify the tweet width with window current width...

That has to be done through the delegate as well so better instead of doing crazy things, do it properly - implement a delegate showing the tweet.