ShowMaximized dosen't run in my application. I don't know why.

[druidamix]

Hello,

If I create a simple application with qt creator for a mobile with symbian s60. It dosen't maximize the widgets with showMaximized.

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
#if defined(Q_WS_S60)
    w.showMaximized();
#else
    w.show();
#endif
 
    return a.exec();
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
#if defined(Q_WS_S60)
    w.showMaximized();
#else
    w.show();
#endif

    return a.exec();
}

To copy to clipboard, switch view to plain text mode 

I don't understand why. Is there a bug?

Or maybe I have to run the function in another widget like the layout grid?

I'm a bit desperated.

Thank you.

[nish]

just to make the test... use QMainWindow instead of your Mainwindow and see if the problem persists.

[druidamix]

Well, the project use QMainWindow. I show you the code:

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
 
namespace Ui {
    class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
private:
    Ui::MainWindow *ui;
 
private slots:
    void on_pushButton_clicked();
};
 
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
    class MainWindow;
}

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;

private slots:
    void on_pushButton_clicked();
};

#endif // MAINWINDOW_H

To copy to clipboard, switch view to plain text mode 

main.cpp

#include <QtGui/QApplication>
#include "mainwindow.h"
 
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow2 w;
 
#if defined(Q_WS_S60)
    w.showMaximized();
#else
    w.show();
#endif
 
    return a.exec();
}

#include <QtGui/QApplication>
#include "mainwindow.h"

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow2 w;

#if defined(Q_WS_S60)
    w.showMaximized();
#else
    w.show();
#endif

    return a.exec();
}

To copy to clipboard, switch view to plain text mode 

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
 
#include <QtGui>
#include "ListviewDelegate.h"
 
 
QStandardItemModel *model;
ListviewDelegate *listdelegate;
 
 
MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
 
 
    model  = new QStandardItemModel();
    listdelegate = new ListviewDelegate();
 
 
}
 
MainWindow::~MainWindow()
{
    delete ui;
 
 
 
}
 
void MainWindow::on_pushButton_clicked()
{
    ui->listView->setItemDelegate(listdelegate);
    ui->listView->setModel(model);
    QStandardItem *item = new QStandardItem();
 
    item->setData("InBox",ListviewDelegate::headerTextRole);
    item->setData("10 messages",ListviewDelegate::subHeaderTextrole);
    item->setData("Hola que tal aixo es una prova jfhjklsd jfdlañj fklañjf lakñfj aklj fadklñfj aklfj aklj falñ",ListviewDelegate::rightTextRole);
    model->appendRow(item);
}

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QtGui>
#include "ListviewDelegate.h"


QStandardItemModel *model;
ListviewDelegate *listdelegate;


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



    model  = new QStandardItemModel();
    listdelegate = new ListviewDelegate();


}

MainWindow::~MainWindow()
{
    delete ui;



}

void MainWindow::on_pushButton_clicked()
{
    ui->listView->setItemDelegate(listdelegate);
    ui->listView->setModel(model);
    QStandardItem *item = new QStandardItem();

    item->setData("InBox",ListviewDelegate::headerTextRole);
    item->setData("10 messages",ListviewDelegate::subHeaderTextrole);
    item->setData("Hola que tal aixo es una prova jfhjklsd jfdlañj fklañjf lakñfj aklj fadklñfj aklfj aklj falñ",ListviewDelegate::rightTextRole);
    model->appendRow(item);
}

To copy to clipboard, switch view to plain text mode 

Thank youuu!!

[wysota]

You probably forgot to apply a layout to your main window.

[nish]

I meant that dont use your derived class. Use directly a QMainWindow, just to check wether its a problem in your code.

[druidamix]

Thank you!!!!!!!

Using that code works perfectly!!

I'll pay you a coffe. lol

This is the code:

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow wnd;
    QWidget* window = new QWidget;
    QVBoxLayout* layout = new QVBoxLayout(window);
    QPushButton* optsButton = new QPushButton("Options");
    QPushButton* exitButton = new QPushButton("Exit");
    QCheckBox* chkBox = new QCheckBox("Checkbox");
    QListView* listview = new QListView(window);
    layout->addWidget(listview);
    layout->addWidget(chkBox);
    layout->addWidget(optsButton);
    layout->addWidget(exitButton);
 
    QObject::connect(exitButton, SIGNAL(clicked()), &app, SLOT(quit()));
 
    wnd.setCentralWidget(window);
 
  #if defined(Q_WS_S60)
    wnd.showMaximized();
  #else
    wnd.show();
  #endif
    return app.exec();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QMainWindow wnd;
    QWidget* window = new QWidget;
    QVBoxLayout* layout = new QVBoxLayout(window);
    QPushButton* optsButton = new QPushButton("Options");
    QPushButton* exitButton = new QPushButton("Exit");
    QCheckBox* chkBox = new QCheckBox("Checkbox");
    QListView* listview = new QListView(window);
    layout->addWidget(listview);
    layout->addWidget(chkBox);
    layout->addWidget(optsButton);
    layout->addWidget(exitButton);

    QObject::connect(exitButton, SIGNAL(clicked()), &app, SLOT(quit()));

    wnd.setCentralWidget(window);

  #if defined(Q_WS_S60)
    wnd.showMaximized();
  #else
    wnd.show();
  #endif
    return app.exec();
}

To copy to clipboard, switch view to plain text mode 

[nish]

now check your MainWindow class to see if you have used any of the size/hide/geometry functions that will cause the prob.