ScrollArea doesn't work.



  • 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]


  • Moderators

    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.



  • 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]


  • Moderators

    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);
    

    }
    @



  • 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]


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