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(C++) QtExample15

 

QtQt CreatorLubuntuUbuntu

 

This Qt example shows how to create pop-up windows from pop-up windows, like this screenshot (png).

 

Technical facts

 

Application type(s)

Operating system(s) or programming environment(s)

IDE(s):

Project type:

C++ standard:

Compiler(s):

Libraries used:

 

 

 

 

 

Qt project file: ./CppQtExample15/CppQtExample15.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

 

 

 

 

 

./CppQtExample15/main.cpp

 

#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();
}

 

 

 

 

 

./CppQtExample15/mydialog.h

 

#ifndef MYDIALOG_H
#define MYDIALOG_H

#include <vector>

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Weffc++"
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#include <boost/shared_ptr.hpp>
#include <QDialog>
#pragma GCC diagnostic pop

struct QPushButton;
struct QHBoxLayout;

class MyDialog : public QDialog
{
  Q_OBJECT

public:
  MyDialog(const QString s = "");
  const QString m_string;

private:
  boost::shared_ptr<QPushButton> m_button1;
  boost::shared_ptr<QPushButton> m_button2;
  std::vector<boost::shared_ptr<MyDialog> > m_children;
  boost::shared_ptr<QHBoxLayout> m_layout;

private slots:
  void button1clicked();
  void button2clicked();
};

#endif // MYDIALOG_H

 

 

 

 

 

./CppQtExample15/mydialog.cpp

 

#include "mydialog.h"

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Weffc++"
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#include <QPushButton>
#include <QHBoxLayout>
#pragma GCC diagnostic pop

MyDialog::MyDialog(const QString s)
  : m_string(s),
  m_button1(new QPushButton),
  m_button2(new QPushButton),
  m_children{},
  m_layout(new QHBoxLayout)
{
  m_button1->setText("Left");
  m_button2->setText("Right");
  m_layout->addWidget(m_button1.get());
  m_layout->addWidget(m_button2.get());
  this->setLayout(m_layout.get());

  m_button1->connect(
    m_button1.get(),SIGNAL(clicked()),
    this,SLOT(button1clicked()));
  m_button2->connect(
    m_button2.get(),SIGNAL(clicked()),
    this,SLOT(button2clicked()));
  this->setWindowTitle(s);
}

void MyDialog::button1clicked()
{
  boost::shared_ptr<MyDialog> new_dialog(new MyDialog(m_string + "L"));
  m_children.push_back(new_dialog);
  new_dialog->setModal(true);
  new_dialog->show();
}

void MyDialog::button2clicked()
{
  boost::shared_ptr<MyDialog> new_dialog(new MyDialog(m_string + "R"));
  m_children.push_back(new_dialog);
  new_dialog->setModal(true);
  new_dialog->show();
}

 

 

 

 

 

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