Daviddoria at 01:30, 29 November 2010

2010-11-29T01:30:41Z

Daviddoria: Created page with 'This example is currently broken. ==ThreadClassMessageBox.cxx== #include #include #include "form.h" int main(int argc, char*argv…'

2010-11-29T01:27:44Z

Created page with 'This example is currently broken. ==ThreadClassMessageBox.cxx== <source lang="cpp"> #include <QApplication> #include <iostream> #include "form.h" int main(int argc, char*argv…'

New page

This example is currently broken.

==ThreadClassMessageBox.cxx==
<source lang="cpp">
#include <QApplication>

#include <iostream>

#include "form.h"

int main(int argc, char*argv[])
{
QApplication app(argc, argv);

Form form;
form.show();

return app.exec();
}
</source>

==thread.h==
<source lang="cpp">
#ifndef THREAD_H
#define THREAD_H

#include <QThread>

#include "TestClass.h"

class Thread : public QThread
{
Q_OBJECT
public:
void run();

signals:
void DisplayMessageBoxSignal();

public:
TestClass MyTestClass;
};

#endif
</source>

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

#include <QMessageBox>
#include <iostream>

void Thread::run()
{
MyTestClass.MyFunction();

emit DisplayMessageBoxSignal();
}
</source>

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

#include <QWidget>
#include "ui_form.h"
#include "thread.h"

class Form : public QWidget, private Ui::Form
{
Q_OBJECT
public:
Form(QWidget *parent = 0);

public slots:
void pushButton_clicked();
void DisplayMessageBoxSlot();

private:
Thread MyThread;
};

#endif

#endif

</source>

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

#include "form.h"
#include "thread.h"

Form::Form(QWidget *parent) : QWidget(parent)
{
setupUi(this);
connect( this->pushButton, SIGNAL( clicked() ), this, SLOT(pushButton_clicked()) );
connect( &(this->MyThread), SIGNAL( DisplayMessageBoxSignal() ), this, SLOT(DisplayMessageBoxSlot()) );
}

void Form::pushButton_clicked()
{
MyThread.start();
}

void Form::DisplayMessageBoxSlot()
{
QMessageBox msgBox;
msgBox.setText("Test Text");
msgBox.exec();
}
</source>

==form.ui==
<source lang="text">
<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
<class>Form</class>
<widget class="QWidget" name="Form">
<property name="geometry">
<rect>
<x>0</x>
<y>0</y>
<width>400</width>
<height>300</height>
</rect>
</property>
<property name="windowTitle">
<string>My Program</string>
</property>
<widget class="QPushButton" name="pushButton">
<property name="geometry">
<rect>
<x>130</x>
<y>100</y>
<width>91</width>
<height>28</height>
</rect>
</property>
<property name="text">
<string>Click me</string>
</property>
</widget>
</widget>
<resources/>
<connections/>
</ui>

</source>

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

PROJECT(ThreadClassMessageBox)

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

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

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

ADD_EXECUTABLE(ThreadClassMessageBox ThreadClassMessageBox.cpp form.cpp thread.cpp TestClass.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(ThreadClassMessageBox ${QT_LIBRARIES})

</source>

@@ Line 1: / Line 1: @@
-This example is currently broken.
+This example is currently broken. How do you produce a message box in the TestClass::MyFunction() ?
 ==ThreadClassMessageBox.cxx==
@@ Line 17: / Line 17: @@
    return app.exec();
+}
 </source>

Qt/Widgets/ThreadClassMessageBox - Revision history

Daviddoria at 01:30, 29 November 2010

Daviddoria: Created page with 'This example is currently broken. ==ThreadClassMessageBox.cxx== #include #include #include "form.h" int main(int argc, char*argv…'