Qt
QDialogs

टिप्पणियों

MyCompareFileDialog.h

#ifndef MYCOMPAREFILEDIALOG_H
#define MYCOMPAREFILEDIALOG_H

#include <QtWidgets/QDialog>

class MyCompareFileDialog : public QDialog
{
    Q_OBJECT

public:
    MyCompareFileDialog(QWidget *parent = 0);
    ~MyCompareFileDialog();
};


#endif // MYCOMPAREFILEDIALOG_H

MyCompareFileDialogDialog.cpp

#include "MyCompareFileDialog.h"
#include <QLabel>

MyCompareFileDialog::MyCompareFileDialog(QWidget *parent)
: QDialog(parent)
{
    setWindowTitle("Compare Files");
    setWindowFlags(Qt::Dialog);
    setWindowModality(Qt::WindowModal);

    resize(300, 100);
    QSizePolicy sizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
    setSizePolicy(sizePolicy);
    setMinimumSize(QSize(300, 100));
    setMaximumSize(QSize(300, 100));

    QLabel* myLabel = new QLabel(this);
    myLabel->setText("My Dialog!");
}

MyCompareFileDialog::~MyCompareFileDialog()
{ }

MainWindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>

namespace Ui {
class MainWindow;
}

class MyCompareFileDialog;

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
    MyCompareFileDialog* myDialog;
};

#endif // MAINWINDOW_H

MainWindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "mycomparefiledialog.h"

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    myDialog = new MyCompareFileDialog(this);

    connect(ui->pushButton,SIGNAL(clicked()),myDialog,SLOT(exec()));
}

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

main.cpp

#include "mainwindow.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    MainWindow w;
    w.show();

    return a.exec();
}

mainwindow.ui

<?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>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralWidget">
   <widget class="QPushButton" name="pushButton">
    <property name="geometry">
     <rect>
      <x>140</x>
      <y>80</y>
      <width>111</width>
      <height>23</height>
     </rect>
    </property>
    <property name="text">
     <string>Show My Dialog</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menuBar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>400</width>
     <height>21</height>
    </rect>
   </property>
  </widget>
  <widget class="QToolBar" name="mainToolBar">
   <attribute name="toolBarArea">
    <enum>TopToolBarArea</enum>
   </attribute>
   <attribute name="toolBarBreak">
    <bool>false</bool>
   </attribute>
  </widget>
  <widget class="QStatusBar" name="statusBar"/>
 </widget>
 <layoutdefault spacing="6" margin="11"/>
 <resources/>
 <connections/>
</ui>