[cpp] Add catch and qt examples

cpp/qt/slots/CMakeLists.txt

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+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Practice project for using signals and slots in Qt                  ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       Slots
+    VERSION         1.0
+    DESCRIPTION     "Practice using signals and slots in Qt 6"
+    LANGUAGES       CXX
+)
+
+add_compile_options(-Wall)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/6.3.1/gcc_64/" CACHE PATH "Path to Qt6")
+
+list(APPEND CMAKE_PREFIX_PATH "${QT_DIR}")
+
+find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+
+qt_add_executable(slots
+    text-view.cpp text-view.h
+    slots-app.cpp slots-app.h
+    main.cpp
+)
+
+set_target_properties(slots PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(slots PUBLIC Qt::Core Qt::Gui Qt::Widgets)
+
+install(TARGETS slots
+    RUNTIME DESTINATION "install/slots"
+    BUNDLE DESTINATION "install/slots"
+    LIBRARY DESTINATION "install/slots"
+)

cpp/qt/slots/main.cpp

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+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Main driver fprogram for practice using signals and slots in Qt     ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "slots-app.h"
+#include <QApplication>
+
+int main(int argc, char *argv[]) {
+  QApplication app(argc, argv);
+  SlotsApp slotsApp;
+  slotsApp.show();
+  return app.exec();
+}

cpp/qt/slots/slots-app.cpp

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+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: MainWindow application for practice using signals and slots in Qt   ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "slots-app.h"
+#include "text-view.h"
+
+SlotsApp::SlotsApp(QWidget *parent) : QMainWindow(parent) {
+
+  auto textBox = new QPlainTextEdit;
+  auto textView = new TextView;
+  auto frame = new QFrame;
+
+  auto dock = new QDockWidget(this);
+  auto dockWidget = new QWidget;
+  auto dockWidgetLayout = new QVBoxLayout;
+  dockWidgetLayout->addWidget(frame);
+  dockWidgetLayout->addWidget(textBox);
+  dockWidget->setLayout(dockWidgetLayout);
+  dock->setWidget(dockWidget);
+
+  auto dock2 = new QDockWidget(this);
+  auto dockWidget2 = new QWidget;
+  auto dockWidgetLayout2 = new QVBoxLayout;
+  dockWidgetLayout2->addWidget(textView);
+  dockWidget2->setLayout(dockWidgetLayout2);
+  dock2->setWidget(dockWidget2);
+
+  textBox->setReadOnly(true);
+  textBox->appendPlainText("Test 1");
+  textBox->appendPlainText("Test 2");
+
+  addDockWidget(Qt::DockWidgetArea::BottomDockWidgetArea, dock);
+  addDockWidget(Qt::DockWidgetArea::BottomDockWidgetArea, dock2);
+  connect(this, &SlotsApp::sendTest, textView, &TextView::test);
+  sendTest();
+}

cpp/qt/slots/slots-app.h

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+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: MainWindow application for practice using signals and slots in Qt   ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_SLOTSAPP_H
+#define KLIPS_SLOTSAPP_H
+
+#include <QDockWidget>
+#include <QMainWindow>
+#include <QPlainTextEdit>
+#include <QVBoxLayout>
+#include <QWidget>
+
+class SlotsApp : public QMainWindow {
+  Q_OBJECT
+
+public:
+  SlotsApp(QWidget *parent = nullptr);
+  ~SlotsApp() = default;
+
+public:
+signals:
+  void sendTest();
+
+public slots:
+  void test(){};
+};
+
+#endif // KLIPS_SLOTSAPP_H

cpp/qt/slots/text-view.cpp

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+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "text-view.h"

cpp/qt/slots/text-view.h

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+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_TEXTVIEW_H
+#define KLIPS_TEXTVIEW_H
+
+#include <QPlainTextEdit>
+
+class TextView : public QPlainTextEdit {
+  Q_OBJECT
+
+public:
+  TextView(QWidget *parent = nullptr) {}
+
+  ~TextView() = default;
+
+public:
+signals:
+  void sendTest();
+
+private:
+signals:
+  void sentTestPrivate();
+
+public slots:
+  void test() { appendPlainText("Test signal received by TextView."); }
+
+  void testArgs(const QString &message) { appendPlainText(message); }
+
+private slots:
+  void testPrivate() {}
+};
+
+#endif // KLIPS_TEXTVIEW_H