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47 lines
2.1 KiB
C++
47 lines
2.1 KiB
C++
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#include "mainwindow.h" // header file included, header files for the Notepad widget
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#include "universalFunctions.h"
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#include <QApplication> // handle widgets, events, mouse movement, feel of window,
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// header files for QApplication
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#include <QLocale>
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#include <QTranslator>
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#include <QFile>
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#include <QJsonDocument>
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// main function that is the entry point for all C and C++ based applications:
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int main(int argc, char *argv[]) // all exectution begins here
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{
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QApplication a(argc, argv); // creates a QApplication object.
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// This object manages application-wide resources and is necessary to run
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// any Qt program that uses Qt Widgets. It constructs an application object
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// with argc command line arguments run in argv
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QTranslator translator;
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const QStringList uiLanguages = QLocale::system().uiLanguages();
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for (const QString &locale : uiLanguages) {
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const QString baseName = "lab1_" + QLocale(locale).name();
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if (translator.load(":/i18n/" + baseName)) {
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a.installTranslator(&translator);
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break;
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}
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}
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MainWindow w; // we create main application object
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// This is the object for which the wizard created the class and the UI file.
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// The user interface contains visual elements that are called widgets in Qt.
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// Examples of widgets are text edits, scroll bars, labels, and radio buttons.
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// A widget can also be a container for other widgets;
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// va dialog or a main application window, for example.
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w.show(); // we display it
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// The following line shows the mainWindow widget on the screen in its own window.
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// Widgets can also function as containers.
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// An example of this is QMainWindow which often contains several types of widgets.
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// Widgets are not visible by default; the function show() makes the widget visible.
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return a.exec(); // put app into loop where events in application are going to happen
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// The following line makes the QApplication enter its event loop.
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// When a Qt application is running,
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// events are generated and sent to the widgets of the application.
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// Examples of events are mouse presses and key strokes.
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}
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