ScrollArea doesn't work.

leandrogs

Hello guys! I am developing an graphical application with Qt/C++ and i have to refactor my entire project to make my life easy. The problem that i have is, i believe, about the Layout type that i have defined at my mainWindow. Here follows the code:

@#include "dengueme.h"
#include "ui_dengueme.h"

#include <QtGui>

DengueME::DengueME(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::DengueME)
{
ui->setupUi(this);

connect(this->ui->actionNew, SIGNAL(triggered()), this, SLOT(insertFrame()));

}

DengueME::~DengueME()
{
delete ui;
}

void DengueME::insertFrame()
{
Path *p = new Path();
Path *p2 = new Path();
Path *p3 = new Path();
Path *p4 = new Path();
Path *p5 = new Path();

QVBoxLayout *Layout = new QVBoxLayout;

Layout->addWidget(p);
Layout->addWidget(p2);
Layout->addWidget(p3);
Layout->addWidget(p4);
Layout->addWidget(p5);

this->ui->scrollArea->setLayout(Layout);

}@

The Path class does not have any relevant code to the interface, because it is defined at Designer Form. This is what's happening:

!https://dl.dropbox.com/u/45191488/Untitled-1.jpg(Screenshot)!

I have called the same element repeatedly just to fill the scrollArea to test the scrollbar.

[edit: updated for picture, koahnig]

koahnig

Please use picture button for posting images. They are directly displayed when you post your dropbox link with the "6th button":http://qt-project.org/wiki/ForumHelp#b642e0c67b7a32cc0b833ea119693dce
That makes it easier to read your post for everybody.

leandrogs

I'm sorry about that!
[quote author="koahnig" date="1363369684"]Please use picture button for posting images. They are directly displayed when you post your dropbox link with the "6th button":http://qt-project.org/wiki/ForumHelp#b642e0c67b7a32cc0b833ea119693dce
That makes it easier to read your post for everybody. [/quote]

Chris Kawa

You've put layout on the scroll area while you should be putting it on the scroll area contents:

@void DengueME::insertFrame()
{
Path *p = new Path();
Path *p2 = new Path();
Path *p3 = new Path();
Path *p4 = new Path();
Path *p5 = new Path();

QVBoxLayout *Layout = new QVBoxLayout;

Layout->addWidget(p);
Layout->addWidget(p2);
Layout->addWidget(p3);
Layout->addWidget(p4);
Layout->addWidget(p5);

QWidget* w = new QWidget();
w->setLayout(Layout);
ui->scrollArea->setWidget(w);

}
@

leandrogs

This works fine for me! Thank you!
[quote author="Krzysztof Kawa" date="1363370131"]You've put layout on the scroll area while you should be putting it on the scroll area contents:

@void DengueME::insertFrame()
{
Path *p = new Path();
Path *p2 = new Path();
Path *p3 = new Path();
Path *p4 = new Path();
Path *p5 = new Path();

QVBoxLayout *Layout = new QVBoxLayout;

Layout->addWidget(p);
Layout->addWidget(p2);
Layout->addWidget(p3);
Layout->addWidget(p4);
Layout->addWidget(p5);

QWidget* w = new QWidget();
w->setLayout(Layout);
ui->scrollArea->setWidget(w);

}
@[/quote]