Daviddoria at 16:25, 5 July 2011

2011-07-05T16:25:37Z

Daviddoria: Created page with '==ProgressBarThreaded.cpp== #include #include "form.h" int main( int argc, char **argv ) { QApplication app(argc, argv); MainWindow wind…'

2011-07-05T16:09:06Z

Created page with '==ProgressBarThreaded.cpp== <source lang="cpp"> #include <qapplication.h> #include "form.h" int main( int argc, char **argv ) { QApplication app(argc, argv); MainWindow wind…'

New page

==ProgressBarThreaded.cpp==
<source lang="cpp">
#include <qapplication.h>
#include "form.h"

int main( int argc, char **argv )
{
QApplication app(argc, argv);
MainWindow window;

window.show();
return app.exec();
}

</source>

==form.cpp==
<source lang="cpp">
#include "form.h"

#include <iostream>
#include <cmath>

void MainWindow::StartProgressSlot()
{
this->progressBar->show();
}

void MainWindow::StopProgressSlot()
{
this->progressBar->hide();
}

void ProgressThread::run()
{
emit StartProgressSignal();
for(unsigned int i = 0; i < 1e8; i++)
{
float a = sin(i);
}

std::cout << "Done." << std::endl;
exit();
emit StopProgressSignal();
}

void ProgressThread::exit()
{
emit StopProgressSignal();
}

MainWindow::MainWindow()
{
this->setupUi(this);
this->progressBar->setMinimum(0);
this->progressBar->setMaximum(0);
this->progressBar->hide();

connect(&myProgressThread, SIGNAL(StartProgressSignal()), this, SLOT(StartProgressSlot()), Qt::QueuedConnection);
connect(&myProgressThread, SIGNAL(StopProgressSignal()), this, SLOT(StopProgressSlot()), Qt::QueuedConnection);
}

void MainWindow::on_btnStart_clicked()
{
std::cout << "Clicked start." << std::endl;
myProgressThread.start();
}

</source>

==form.h==
<source lang="cpp">
#ifndef BUTTONFORM_H
#define BUTTONFORM_H

#include "ui_main.h"

#include <QThread>

class ProgressThread : public QThread
{
Q_OBJECT
public:
void run();
void exit();

signals:
void StartProgressSignal();
void StopProgressSignal();
};

class MainWindow : public QMainWindow, private Ui::MainWindow
{
Q_OBJECT

public:
MainWindow();

ProgressThread myProgressThread;

public slots:

void on_btnStart_clicked();
void StartProgressSlot();
void StopProgressSlot();

};

#endif

</source>

==main.ui==
<source lang="text">
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>MainWindow</class>
<widget class="QMainWindow" name="MainWindow">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>600</height>
</rect>
</property>
<property name="windowTitle">
<string>MainWindow</string>
</property>
<widget class="QWidget" name="centralwidget">
<widget class="QProgressBar" name="progressBar">
<property name="geometry">
<rect>
<x>190</x>
<y>220</y>
<width>118</width>
<height>23</height>
</rect>
</property>
<property name="value">
<number>24</number>
</property>
</widget>
<widget class="QPushButton" name="btnStart">
<property name="geometry">
<rect>
<x>170</x>
<y>340</y>
<width>91</width>
<height>28</height>
</rect>
</property>
<property name="text">
<string>Start</string>
</property>
</widget>
<widget class="QPushButton" name="btnStop">
<property name="geometry">
<rect>
<x>360</x>
<y>340</y>
<width>91</width>
<height>28</height>
</rect>
</property>
<property name="text">
<string>Stop</string>
</property>
</widget>
</widget>
<widget class="QMenuBar" name="menubar">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>800</width>
<height>25</height>
</rect>
</property>
</widget>
<widget class="QStatusBar" name="statusbar"/>
</widget>
<resources/>
<connections/>
</ui>

</source>

==CMakeLists.txt==
<source lang="cmake">
cmake_minimum_required(VERSION 2.6)

PROJECT(ProgressBarThreaded)

FIND_PACKAGE(Qt4 REQUIRED)
INCLUDE(${QT_USE_FILE})

QT4_WRAP_UI(UISrcs main.ui)
QT4_WRAP_CPP(MOCSrcs form.h)

include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR})

ADD_EXECUTABLE(ProgressBarThreaded ProgressBarThreaded.cpp form.h form.cpp ${UISrcs} ${MOCSrcs})
TARGET_LINK_LIBRARIES(ProgressBarThreaded ${QT_LIBRARIES})

</source>

@@ Line 25: / Line 25: @@
 void MainWindow::StartProgressSlot()
+{
    this->progressBar->show();
+}
@@ Line 30: / Line 31: @@
 void MainWindow::StopProgressSlot()
+{
    this->progressBar->hide();
+}
@@ Line 35: / Line 37: @@
 void ProgressThread::run()
+{
    emit StartProgressSignal();
    for(unsigned int i = 0; i < 1e8; i++)
@@ Line 42: / Line 45: @@
    std::cout << "Done." << std::endl;
-   exit();
+   this->exit();
    emit StopProgressSignal();
+}
@@ Line 48: / Line 51: @@
 void ProgressThread::exit()
+{
    emit StopProgressSignal();
+}
@@ Line 65: / Line 69: @@
+{
    std::cout << "Clicked start." << std::endl;
-   myProgressThread.start();
+   this->myProgressThread.start(); // calls run()
+}
@@ Line 104: / Line 114: @@
    void on_btnStart_clicked();
    void StartProgressSlot();
    void StopProgressSlot();

Qt/Widgets/ProgressThreaded - Revision history

Daviddoria at 16:25, 5 July 2011

Daviddoria: Created page with '==ProgressBarThreaded.cpp== #include #include "form.h" int main( int argc, char **argv ) { QApplication app(argc, argv); MainWindow wind…'