(C++) QtExample13

 

 

This Qt example shows how to create a more complete custom QDialog with a custom slot, like this screenshot (png). This example elaborates on Qt example 12: creating a custom QDialog with slot.

 

• Download the Qt Project of 'QtExample13' (zip)

Technical facts

 

Application type(s)

• Desktop application

Operating system(s) or programming environment(s)

• Lubuntu 15.04 (vivid)

IDE(s):

• Qt Creator 3.1.1

Project type:

• GUI application

C++ standard:

• C++11

Compiler(s):

• G++ 4.9.2

Libraries used:

• Qt: version 5.4.1 (32 bit)
• STL: GNU ISO C++ Library, version 4.9.2

 

 

 

 

 

Qt project file: ./CppQtExample13/CppQtExample13.pro

 

---

exists(../../DesktopApplication.pri) {   include(../../DesktopApplication.pri) } !exists(../../DesktopApplication.pri) {   QT += core gui   greaterThan(QT_MAJOR_VERSION, 4): QT += widgets   TEMPLATE = app   CONFIG(debug, debug|release) {     message(Debug mode)   }   CONFIG(release, debug|release) {     message(Release mode)     DEFINES += NDEBUG NTRACE_BILDERBIKKEL   }   QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra   unix {     QMAKE_CXXFLAGS += -Werror   } } exists(../../Libraries/Boost.pri) {   include(../../Libraries/Boost.pri) } !exists(../../Libraries/Boost.pri) {   win32 {     INCLUDEPATH += \       ../../../Projects/Libraries/boost_1_55_0   } } SOURCES += main.cpp SOURCES  += mydialog.cpp HEADERS  += mydialog.h

 

 

 

 

 

./CppQtExample13/main.cpp

 

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#pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #include <QApplication> #include "mydialog.h" #pragma GCC diagnostic pop int main(int argc, char *argv[]) {   QApplication a(argc, argv);   MyDialog w;   w.show();   return a.exec(); }

 

 

 

 

 

./CppQtExample13/mydialog.h

 

---

#ifndef MYDIALOG_H #define MYDIALOG_H #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #include <boost/scoped_ptr.hpp> #include <QDialog> #include <QPushButton> #include <QVBoxLayout> #pragma GCC diagnostic pop class MyDialog : public QDialog {   Q_OBJECT public:   MyDialog()     : m_layout(new QVBoxLayout),     m_button1(new QPushButton),     m_button2(new QPushButton),     m_clicks(0)   {     m_button1->setText("Count");     m_button1->connect(         m_button1.get(),SIGNAL(clicked()),         this,SLOT(buttonClicked()));     m_button2->setText("Quit");     m_button2->connect(         m_button2.get(),SIGNAL(clicked()),         this,SLOT(close()));     m_layout->addWidget(m_button1.get());     m_layout->addWidget(m_button2.get());     this->setGeometry(0,0,300,100);     this->setWindowTitle("CppQtExample13");     this->setLayout(m_layout.get());   } private:   boost::scoped_ptr<QVBoxLayout> m_layout;   boost::scoped_ptr<QPushButton> m_button1;   boost::scoped_ptr<QPushButton> m_button2;   int m_clicks; private slots:   void buttonClicked()   {     ++m_clicks;     QString s; s = s.number(m_clicks);     this->setWindowTitle("Top button is clicked " + s + " times");   } }; #endif // MYDIALOG_H

 

 

 

 

 

./CppQtExample13/mydialog.cpp

 

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#include "mydialog.h"