Dodata je postavka za temu 4 (qt)

tema04_qt/01_qt_instalacija/README.md

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+# Qt Instalacija
+
+## Linux
+`sudo apt-get install build-essential`\
+`sudo apt-get install qtcreator`\
+`sudo apt-get install qt5-default`
+
+### Linux docs i API:
+``sudo apt install `apt-cache search 5-examples | grep qt | grep example | awk '{print $1 }' | xargs` ``\
+``sudo apt install `apt-cache search 5-doc | grep "Qt 5 " | awk '{print $1}' | xargs` ``\
+`sudo apt-get install build-essential qtcreator qt5-default`
+
+### Ako nešto nedostaje: 
+``sudo apt install `apt-cache search qt | grep 5- | grep ^qt | awk '{print $1}' | xargs` ``
+
+### izvor: 
+[qt linux installation guide](https://doc.qt.io/qt-5/linux.html)`\
+[stackoverflow linux installation guide](https://stackoverflow.com/questions/48147356/install-qt-on-ubuntu)
+
+  --- 
+## Mac:
+[qt macos installation guide](https://doc.qt.io/qt-5/macos.html)
+
+  ---
+## Windows: 
+[qt windows installation guide](https://doc.qt.io/qt-5/windows.html)

tema04_qt/02_qt_cppreference/README.md

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+# Upustvo za dodavanje cppreference u Qt Creator
+
+## Skidanje cppreference knjige
+1. Otvoriti zvaničnu cppreference stranicu: [cppreference](https://en.cppreference.com);
+2. Kliknuti na `offline archive` pri dnu u okviru sekcije `News`;
+3. Pronaći sekciju `Qt help book` i tu kliknuti na zipovan `qch book`;
+4. Skinuti `qch book` (Napomena: Ako ne može da se skine preko Chrome pretraživača, skinuti preko drugog pretraživača).
+
+## Dodavanje cppreference u Qt Creator (pogledati cppreference.pdf datoteku)
+1. Otvoriti Qt creator; 
+2. Kliknuti na `Tools` u opcijama na vrhu, pa na `Options...`;
+3. Kliknuti na `Help` sa leve strana;
+4. Pri vrhu kliknuti na `Documentation`;
+5. Kliknuti na `Add...` i dodati `*.qch` fajl.
+
+## Korišćenje cppreference u okviru Qt Creator-a
+Sada se u okviru Qt moze koristiti cppreference tako sto se klikne na `Help`
+sa leve strane i u opcijama izabrati cppreference.

tema04_qt/03_nonqt_aplikacija/.gitignore

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+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+

tema04_qt/03_nonqt_aplikacija/03_nonqt_aplikacija.pro

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+TEMPLATE = app
+CONFIG += console c++17
+CONFIG -= app_bundle
+CONFIG -= qt
+
+SOURCES += main.cpp

tema04_qt/03_nonqt_aplikacija/main.cpp

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+#include <iostream>
+#include <vector>
+
+int main()
+{
+    // Ako se postavi kursor misa preko npr. 'std::vector' i postoji offline cppreference
+    // onda se sa desne strane u okviru qtcreator-a otvara dokumentacija
+    // Napomena: Vrlo moguce da ovo nece raditi bez std namespace-a
+    std::vector<int> vec{1, 2, 3, 4, 5};
+    std::cout << "Hello World!" << std::endl;
+
+    for(auto val: vec)
+        std::cout << val << " ";
+    std::cout << std::endl;
+
+    return 0;
+}

tema04_qt/04_qt_aplikacija/04_qt_aplikacija.pro

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+#-------------------------------------------------
+#
+# Project created by QtCreator 2020-10-08T18:01:16
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = 04_qt_aplikacija
+TEMPLATE = app
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which has been marked as deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+
+SOURCES += \
+        main.cpp \
+        mainwindow.cpp
+
+HEADERS += \
+        mainwindow.h
+
+FORMS += \
+        mainwindow.ui

tema04_qt/04_qt_aplikacija/README.md

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+![illustration](illustration.png)

tema04_qt/04_qt_aplikacija/main.cpp

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+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}

tema04_qt/04_qt_aplikacija/mainwindow.cpp

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+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <QPushButton>
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow),
+    m_score(0)
+{
+    ui->setupUi(this);
+
+    // Objekat koji emituje signal: pbtnIncrement
+    // Signal koji se emituje: QPushButton::clicked
+    // Objekat koji prima signal: this (MainWindow)
+    // Slot (fja): MainWindow::inc
+
+    // Napomena: slot i signal su f-je koje imati isti potpis tj. iste argument
+    // Specijalan slucaj: signal ima vise argumenata od slota, onda se visak ignorise
+
+    // Rezultat:
+    //      Klikom na dugme 'Increment' se poziva f-ja inc() i samim tim se uvecava
+    //      trenutni rezultat igre za 1
+    connect(
+        ui->pbtnIncrement,
+        &QPushButton::clicked,
+        this,
+        &MainWindow::inc
+    );
+}
+
+void MainWindow::inc()
+{
+    m_score++;
+    // QString::number je staticka metoda koja prevodi broj u nisku
+    // tj. vraca QString
+    QString updatedScoreText = "score: " + QString::number(m_score);
+    ui->lScore->setText(updatedScoreText);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}

tema04_qt/04_qt_aplikacija/mainwindow.h

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+// namespace - prostor imena - uopstenje pakate iz Jave
+// namespace Ui grupise MainWindow i generisan Ui_MainWindow
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    // explicit konstruktor onemogucava implicitno pozivanje konstruktora
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+public Q_SLOTS:
+    void inc();
+
+private:
+    Ui::MainWindow *ui;
+    int m_score;
+};
+
+#endif // MAINWINDOW_H

tema04_qt/04_qt_aplikacija/mainwindow.ui

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+<?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>147</width>
+    <height>139</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralWidget">
+   <layout class="QGridLayout" name="gridLayout">
+    <item row="0" column="0">
+     <widget class="QPushButton" name="pbtnIncrement">
+      <property name="maximumSize">
+       <size>
+        <width>100</width>
+        <height>16777215</height>
+       </size>
+      </property>
+      <property name="text">
+       <string>Increment</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="0">
+     <widget class="QLabel" name="lScore">
+      <property name="text">
+       <string>Score: 0</string>
+      </property>
+      <property name="alignment">
+       <set>Qt::AlignCenter</set>
+      </property>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menuBar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>147</width>
+     <height>22</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuGame_inc">
+    <property name="title">
+     <string>game inc.</string>
+    </property>
+   </widget>
+   <addaction name="menuGame_inc"/>
+  </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>

tema04_qt/05_qmake/.qmake.stash

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+QMAKE_CXX.INCDIRS = \
+    /usr/include/c++/7 \
+    /usr/include/x86_64-linux-gnu/c++/7 \
+    /usr/include/c++/7/backward \
+    /usr/lib/gcc/x86_64-linux-gnu/7/include \
+    /usr/local/include \
+    /usr/lib/gcc/x86_64-linux-gnu/7/include-fixed \
+    /usr/include/x86_64-linux-gnu \
+    /usr/include
+QMAKE_CXX.LIBDIRS = \
+    /usr/lib/gcc/x86_64-linux-gnu/7 \
+    /usr/lib/x86_64-linux-gnu \
+    /usr/lib \
+    /lib/x86_64-linux-gnu \
+    /lib
+QMAKE_CXX.QT_COMPILER_STDCXX = 201402L
+QMAKE_CXX.QMAKE_GCC_MAJOR_VERSION = 7
+QMAKE_CXX.QMAKE_GCC_MINOR_VERSION = 5
+QMAKE_CXX.QMAKE_GCC_PATCH_VERSION = 0
+QMAKE_CXX.COMPILER_MACROS = \
+    QT_COMPILER_STDCXX \
+    QMAKE_GCC_MAJOR_VERSION \
+    QMAKE_GCC_MINOR_VERSION \
+    QMAKE_GCC_PATCH_VERSION

tema04_qt/05_qmake/hello.cpp

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+#include "hello.hpp"
+#include <iostream>
+
+inline void hello()
+{
+    std::cout << "Hello World!" << std::endl;
+}
+
+void nhello(int n)
+{
+    for(unsigned i=0; i<n; i++)
+        hello();
+}

tema04_qt/05_qmake/hello.hpp

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+#ifndef __HELLO__
+#define __HELLO__
+
+inline void hello();
+
+void nhello(int n);
+
+#endif