Hello Qt

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+
+project(Regression)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTORCC ON)
+
+set(CMAKE_AUTOUIC_SEARCH_PATHS include/ui)
+
+find_package(Qt5 COMPONENTS Widgets REQUIRED)
+
+file(GLOB_RECURSE source_files
+	"src/*.cpp"
+)
+
+file(GLOB_RECURSE include_files
+	"include/*.hpp"
+	"include/*.ui"
+)
+
+add_executable(regression
+	${include_files}
+	${source_files}
+)
+
+target_include_directories(regression PRIVATE
+	include
+	${Qt5_INCLUDE_DIRS}
+)
+
+target_link_libraries(regression PRIVATE
+	Qt5::Widgets
+)
+
+if(WIN32)
+	add_custom_command(TARGET regression POST_BUILD
+		COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:Qt5::Widgets> $<TARGET_FILE_DIR:regression>
+		COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:Qt5::Gui> $<TARGET_FILE_DIR:regression>
+		COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:Qt5::Core> $<TARGET_FILE_DIR:regression>
+
+		# This is garbage, remove this, Qt just sucks
+		COMMAND ${CMAKE_COMMAND} -E copy ${Qt5_DIR}/../../../plugins/platforms/qwindowsd.dll $<TARGET_FILE_DIR:regression>
+		COMMAND ${CMAKE_COMMAND} -E copy ${Qt5_DIR}/../../../plugins/platforms/qwindows.dll $<TARGET_FILE_DIR:regression>
+	)
+endif()

include/MainWindow.hpp

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+#pragma once
+
+#include <QMainWindow>
+
+namespace Ui {
+	class MainWindow;
+}
+
+class MainWindow : public QMainWindow
+{
+	Q_OBJECT
+
+public:
+	explicit MainWindow(QWidget* parent = nullptr);
+	~MainWindow();
+
+private:
+	Ui::MainWindow* ui;
+};

include/ui/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>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <widget class="QLabel" name="label">
+    <property name="geometry">
+     <rect>
+      <x>146</x>
+      <y>102</y>
+      <width>271</width>
+      <height>91</height>
+     </rect>
+    </property>
+    <property name="font">
+     <font>
+      <pointsize>28</pointsize>
+      <weight>75</weight>
+      <bold>true</bold>
+     </font>
+    </property>
+    <property name="text">
+     <string>TextLabel</string>
+    </property>
+   </widget>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>21</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/MainWindow.cpp

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+#include "MainWindow.hpp"
+#include "ui_MainWindow.h"
+
+MainWindow::MainWindow(QWidget* parent) :
+	QMainWindow(parent), ui(new Ui::MainWindow)
+{
+	ui->setupUi(this);
+	ui->label->setText("Hello, World!");
+}
+
+MainWindow::~MainWindow()
+{
+	delete ui;
+}

src/main.cpp

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+#include <qapplication.h>
+#include "MainWindow.hpp"
+
+int main(int argc, char** argv)
+{
+	QApplication app(argc, argv);
+	MainWindow window;
+	window.show();
+
+	return app.exec();
+}