Application construction in the Qt5 library

Ovaj rad bavi se programskim okvirom Qt i njegovom uporabom u izradi multiplatformske C++ desktop aplikacije sa grafičkim sučeljem na konkretnom primjeru galerije slika za Windows, Linux i Mac. U prvom se poglavlju obrađuju osnove Qt klasa i izrade korisničkog sučelja općenito te korištenje alata Qt Designer. Ostatak je rada sama izrada aplikacije podijeljena u tri glavna dijela - obrada podataka, izrada korisničkog sučelja te pakiranje aplikacije. Ovdje se također daje pregled u Qt-ovu Model/View arhitekturu. Za segment obrade podataka stvara se SQLITE baza podataka koja se zatim povezuje sa podatkovnim klasama za glavna dva objekta u aplikaciji galerije slika - album i slika. Korisničko sučelje je najopsežniji dio rada te pokriva dizajniranje formi za pregled albuma, slika u albumu te pojedine slike, a zatim njihovo povezivanje sa prethodno stvorenom logikom iz obrade podataka. Na koncu se stvaraju skripte kojima se provodi pakiranje aplikacije za platforme Windows, Linux i Mac OS X.This paper deals with the Qt framework and how it can be used in the development of a multiplatform C ++ desktop application with a graphical interface on the example of an image gallery for Windows, Linux and Mac. The first chapter discusses the basics of Qt classes and user interface design in general and using the Qt Designer tool. The rest of the work is the development of the application itself whcih is divided into three main parts - data processing, user interface development and application packaging. An overview of Qt’s Model/View architecture is also provided here. For the data processing segment, an SQLITE database is created which is then linked to the data classes for the two main objects in the image gallery application - album and image. The user interface is the most comprehensive part of the work and covers the design of forms for viewing albums, images in the album and individual images, and then connecting them with previously created logic from data processing. Finally, scripts are created to package the application for Windows, Linux, and Mac OS X