Small fixes

.gitattributes

@@ -0,0 +1,24 @@
+# Set default behavior to automatically normalize line endings
+* text=auto
+
+# C++ source files
+*.cpp text diff=cpp
+*.h text diff=cpp
+
+# CMake files
+CMakeLists.txt text
+*.cmake text
+
+# QMake files
+*.pro text
+
+# Bash scripts
+*.sh text eol=lf
+
+# Documentation
+*.md text diff=markdown
+
+# Binary files
+*.png binary
+*.jpg binary
+*.ico binary

.github/workflows/build.yml

@@ -0,0 +1,31 @@
+name: Build Qt Calculator
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Install Qt
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y qtbase5-dev qt5-qmake cmake
+
+    - name: Configure CMake
+      run: cmake -B ${{github.workspace}}/build
+
+    - name: Build
+      run: cmake --build ${{github.workspace}}/build
+
+    - name: Test
+      working-directory: ${{github.workspace}}/build
+      run: |
+        echo "Running built application to verify it works"
+        # Add tests if you implement them later

CMakeLists.txt

@@ -8,9 +8,26 @@ if(CMAKE_BUILD_TYPE STREQUAL "Debug")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -g")
 endif()
 
-find_package(Qt5 REQUIRED COMPONENTS Core Widgets)
+# Установить пути поиска для Qt5
+set(CMAKE_PREFIX_PATH ${CMAKE_PREFIX_PATH} "/usr/lib/qt5" "/usr/lib/x86_64-linux-gnu/qt5" "/usr/lib/cmake/Qt5")
 
+# Альтернативный способ поиска Qt5
+if(NOT Qt5_DIR)
+    set(Qt5_DIR "/usr/lib/cmake/Qt5")
+endif()
+
+# Настройка Qt5 и пути модулей
+find_package(Qt5 COMPONENTS Core Widgets QUIET)
+
+# Проверка наличия Qt5
+if(NOT Qt5_FOUND)
+    message(FATAL_ERROR "Qt5 не найден. Установите пакеты Qt5: sudo apt install qtbase5-dev qt5-qmake")
+endif()
+
+# Включение автоматической генерации MOC-файлов для Qt
 set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
 
 add_executable(Calculator main.cpp
         Calculator.cpp

Calculator.cpp

@@ -5,50 +5,50 @@
 #include <QApplication>
 
 
-    Calculator::Calculator(QWidget *parent) : QWidget(parent)
+Calculator::Calculator(QWidget *parent) : QWidget(parent)
-    {
+{
     setupUI(); // Set up the user interface
     connectSignals(); // Connect signals and slots
     setWindowTitle("Calculator"); // Set the window title
     resize(300, 400); // Resize the window to a reasonable size
-    }
+}
 
-    void Calculator::setupUI()
+void Calculator::setupUI()
-    {
+{
     auto *mainLayout = new QVBoxLayout(this);
 
-        //Display setup
+    // Display setup
     display = new QLineEdit("0");
-        display -> setReadOnly(true);
+    display->setReadOnly(true);
-        display -> setAlignment(Qt::AlignRight);
+    display->setAlignment(Qt::AlignRight);
-        display -> setStyleSheet("font-size: 18px; padding: 10px;");
+    display->setStyleSheet("font-size: 18px; padding: 10px;");
-        mainLayout -> addWidget(display);
+    mainLayout->addWidget(display);
 
     // Button grid
     auto *gridLayout = new QGridLayout();
 
     // Clear button
     clearBtn = new QPushButton("C");
-        gridLayout -> addWidget(clearBtn, 0, 0, 1, 4);
+    gridLayout->addWidget(clearBtn, 0, 0, 1, 4);
 
     // Number buttons
     for (int i = 1; i <= 9; ++i)
     {
         auto *btn = new QPushButton(QString::number(i));
-            int row = 3- (i - 1) / 3;
+        int row = 3 - (i - 1) / 3;
         int col = (i - 1) % 3;
-            gridLayout -> addWidget(btn, row, col);
+        gridLayout->addWidget(btn, row, col);
         connect(btn, &QPushButton::clicked, this, &Calculator::digitClicked);
     }
 
-        //Zero button
+                    // Zero button
                     auto *zeroBtn = new QPushButton("0");
-        gridLayout -> addWidget(zeroBtn, 4, 0, 1, 2);
+                    gridLayout->addWidget(zeroBtn, 4, 0, 1, 2);
                     connect(zeroBtn, &QPushButton::clicked, this, &Calculator::digitClicked);
 
                     // Decimal point button
                     auto *dotBtn = new QPushButton(".");
-        gridLayout -> addWidget(dotBtn, 4, 2);
+                    gridLayout->addWidget(dotBtn, 4, 2);
                     connect(dotBtn, &QPushButton::clicked, this, &Calculator::digitClicked);
 
                     // Operator buttons
@@ -58,13 +58,13 @@
                     auto *divBtn = new QPushButton("/");
                     equalBtn = new QPushButton("=");
 
-        gridLayout -> addWidget(divBtn, 1, 3);
+                    gridLayout->addWidget(divBtn, 1, 3);
-        gridLayout -> addWidget(mulBtn, 2, 3);
+                    gridLayout->addWidget(mulBtn, 2, 3);
-        gridLayout -> addWidget(subBtn, 3, 3);
+                    gridLayout->addWidget(subBtn, 3, 3);
-        gridLayout -> addWidget(addBtn, 4, 3);
+                    gridLayout->addWidget(addBtn, 4, 3);
-        gridLayout -> addWidget(equalBtn, 5, 0, 1, 4);
+                    gridLayout->addWidget(equalBtn, 5, 0, 1, 4);
 
-        mainLayout -> addLayout(gridLayout);
+                    mainLayout->addLayout(gridLayout);
 
                     // Store buttons for connections
                     operatorButtons = {addBtn, subBtn, mulBtn, divBtn};
@@ -83,31 +83,31 @@
 
     void Calculator::digitClicked()
     {
-        const auto *button = qobject_cast<QPushButton *>(sender());  // const auto*
+    const auto *button = qobject_cast<QPushButton *>(sender());
-        const QString digit = button -> text();  // const
+    const QString digit = button->text();
 
     if (waitingForOperand) {
-            display -> clear();
+        display->clear();
         waitingForOperand = false;
     }
 
-        if (display -> text() == "0" && digit != ".") {
+    if (display->text() == "0" && digit != ".") {
-            display -> clear();
+        display->clear();
     }
 
-        display -> setText(display -> text() + digit);
+    display->setText(display->text() + digit);
     }
 
     void Calculator::operatorClicked()
     {
     auto *button = qobject_cast<QPushButton *>(sender());
-        const QString op = button -> text();
+    const QString op = button->text();
 
     if (!waitingForOperand && !operation.isEmpty()) {
         calculateResult();
     }
 
-        firstNumber = display -> text().toDouble();
+    firstNumber = display->text().toDouble();
     operation = op;
     waitingForOperand = true;
     }
@@ -118,7 +118,7 @@
         return; // No operation to perform
     }
 
-        double secondNumber = display -> text().toDouble();
+    double secondNumber = display->text().toDouble();
     double result = 0.0;
 
     if (operation == "+")
@@ -133,20 +133,20 @@
             result = firstNumber / secondNumber;
         else
         {
-                display -> setText("Error");
+            display->setText("Error");
             clearDisplay();
             return;
         }
     }
 
-        display -> setText(QString::number(result));
+    display->setText(QString::number(result));
     operation.clear();
     waitingForOperand = true;
     }
 
     void Calculator::clearDisplay()
     {
-        display -> setText("0");
+    display->setText("0");
     firstNumber = 0.0;
     operation.clear();
     waitingForOperand = true;

README.md

@@ -3,18 +3,86 @@ # Qt Calculator
 A simple calculator application built with Qt5 and C++20.
 
 ## Features
+
 - Basic arithmetic operations (+, -, *, /)
 - Clear functionality
 - Error handling for division by zero
-- Modern C++ practices (Rule of Five)
+- Modern C++ practices (Rule of Five implementation)
 
-## Build Requirements
+## Requirements
-- Qt5 (Core, Widgets)
+
-- CMake 3.16+
+To compile and run this project, you need:
+
+- CMake 3.16 or higher
+- Qt5 (Core and Widgets)
 - C++20 compatible compiler
 
-## Building
+## Installing Dependencies
+
+### Ubuntu/Debian:
+
+```bash
+# Full development environment
+sudo apt install qtcreator qtbase5-dev qt5-qmake qtbase5-dev-tools cmake
+
+# Minimal required packages
+sudo apt install qtbase5-dev qt5-qmake cmake
+```
+
+### Verifying Qt5 Installation
+
+Check if Qt5 packages are installed and locate them:
+
+```bash
+dpkg -l | grep qt5
+find /usr -name "Qt5Config.cmake"
+```
+
+If Qt5Config.cmake is not found, install the necessary packages:
+
+```bash
+sudo apt install qtbase5-dev
+```
+
+### Fedora:
+
+```bash
+sudo dnf install qt5-qtbase-devel qt5-qttools-devel qt-creator cmake
+```
+
+### Arch Linux:
+
+```bash
+sudo pacman -S qt5-base qt5-tools qtcreator cmake
+```
+
+## Building the Project
+
+### Using CMake (recommended)
+
 ```bash
 mkdir build && cd build
 cmake ..
 make
+```
+
+### Using QMake (alternative)
+
+```bash
+qmake qt-project.pro
+make
+```
+
+## Running the Application
+
+```bash
+./Calculator
+```
+
+## Troubleshooting Qt5 Find Issues
+
+If CMake cannot find Qt5, you can specify the Qt5 path manually:
+
+```bash
+cmake -DQt5_DIR=/path/to/qt5/lib/cmake/Qt5 ..
+```

build.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Check for Qt5 installation
+if ! dpkg -l | grep -q qtbase5-dev; then
+    echo "Qt5 is not installed. Installing required packages..."
+    sudo apt install -y qtbase5-dev qt5-qmake cmake
+fi
+
+# Create build directory
+mkdir -p build
+cd build
+
+# Configure CMake with Qt5 paths
+cmake .. \
+    -DQt5_DIR=/usr/lib/cmake/Qt5 \
+    -DCMAKE_PREFIX_PATH=/usr/lib/x86_64-linux-gnu/cmake
+
+# Build the project
+make
+
+echo "Build completed. Run the calculator with: ./build/Calculator"

qt-project.pro

@@ -0,0 +1,17 @@
+# Alternative project file for Qt Creator and qmake
+
+QT += core widgets
+CONFIG += c++20
+
+TARGET = Calculator
+TEMPLATE = app
+
+SOURCES += main.cpp \
+        Calculator.cpp
+
+HEADERS += Calculator.h
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target