How using multi thread on this sample?

[tmtt66]

Hi
how using multi thread on this sample?
and two table on this sample fill asynchronous.

"sample":http://tmtt66.persiangig.com/sample-multithread.rar

thanks

[sierdzio]

Please post the relevant code here.

[Jeroentjehome]

Huh, your like is in persian language. That's a bit hard to read ;-) Also like slerdzio says, post the code you don't understand. Then we might be able to help.

[tmtt66]

mainwindow
@#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "mythread.h"
#include <QtConcurrent/QtConcurrentRun>
#include <QMessageBox>
#include <qscrollbar.h>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
ui->tbltest1->setColumnCount(1);
ui->tbltest2->setColumnCount(1);
}

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

void MainWindow::on_btnstart_clicked()
{
ui->tbltest1->setRowCount(0);
ui->tbltest2->setRowCount(0);

threadtest1 = NULL;
threadtest2 = NULL;

threadtest1 = new mythread;
threadtest2 = new mythread;

connect(threadtest1, SIGNAL(updatetable1()), this, SLOT(runonthred1()));
connect(threadtest2, SIGNAL(updatetable2()), this, SLOT(runonthred2()));

threadtest1->name = "t1";
threadtest2->name = "t2";

threadtest1->start();
threadtest2->start();

}

void MainWindow::runonthred1()
{
QtConcurrent::run(this, &MainWindow::setdatatoview1);
}

void MainWindow::runonthred2()
{
QtConcurrent::run(this, &MainWindow::setdatatoview2);
}

void MainWindow::setdatatoview1()
{
for (int var = 0; var < 100; ++var)
{
ui->tbltest1->setRowCount(ui->tbltest1->rowCount() + 1);
ui->tbltest1->verticalScrollBar()->setSliderPosition(ui->tbltest1->verticalScrollBar()->maximum());

    threadtest1->msleep(100);
    QTableWidgetItem *data = NULL;
    data = new QTableWidgetItem(QString("test"));
    if(data)
    {
        ui->tbltest1->setItem(var, 0, data);
    }
    else
    {
        QMetaObject::invokeMethod(this, "UIStatus",  Qt::QueuedConnection, Q_ARG(bool, true));
        return;
    }
}

}

void MainWindow::setdatatoview2()
{
for (int var = 0; var < 100; ++var)
{
ui->tbltest2->setRowCount(ui->tbltest2->rowCount() + 1);
ui->tbltest2->verticalScrollBar()->setSliderPosition(ui->tbltest2->verticalScrollBar()->maximum());

    threadtest2->msleep(10);
    QTableWidgetItem *data = NULL;
    data = new QTableWidgetItem(QString("test"));
    if(data)
    {
        ui->tbltest2->setItem(var, 0, data);
    }
    else
    {
        QMetaObject::invokeMethod(this, "UIStatus",  Qt::QueuedConnection, Q_ARG(bool, true));
        return;
    }
}

}
@

thread
@#include "mythread.h"
#include <QDebug>
#include <QtCore>
#include "mainwindow.h"
#include <QTimer>

mythread::mythread(QObject *parent) :
QThread(parent)
{

}

void mythread::run()
{
if(this->name == "t1")
{
emit updatetable1();
}
if(this->name == "t2")
{
emit updatetable2();
}
}

@
@
#ifndef MYTHREAD_H
#define MYTHREAD_H

#include <QThread>
#include <QTimer>

class mythread : public QThread
{
Q_OBJECT
public:
explicit mythread(QObject parent = 0);
QString name;
QTimer timer ;

protected:
void run();

signals:
void updatetable1();
void updatetable2();

public slots:
};

#endif // MYTHREAD_H
@

thanks a lot.

[dbzhang800]

Hi, please note that

bq. QWidget and all its subclasses, are not reentrant. They can only be used from the main thread.

[tmtt66]

What is your recommend to solve problem?
Please help me .
thanks.