convert qml project to qtwidgets

ui/CMakeLists.txt

@@ -4,38 +4,48 @@ project(llink VERSION 0.1 LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-find_package(Qt6 REQUIRED COMPONENTS Quick)
+find_package(Qt6 REQUIRED COMPONENTS
+        Core
+        Gui
+        Widgets
+)
 
 qt_standard_project_setup(REQUIRES 6.8)
 
-qt_add_executable(appllink
-    main.cpp
-)
-
-qt_add_qml_module(appllink
-    URI llink
-    QML_FILES
-        Main.qml
+qt_add_executable(llink
+        main.cpp
+        src/MainWindow.cpp
+        src/MainWindow.h
 )
 
 # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
 # If you are developing for iOS or macOS you should consider setting an
 # explicit, fixed bundle identifier manually though.
-set_target_properties(appllink PROPERTIES
-#    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.appllink
-    MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
-    MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
-    MACOSX_BUNDLE TRUE
-    WIN32_EXECUTABLE TRUE
+set_target_properties(llink PROPERTIES
+        #    MACOSX_BUNDLE_GUI_IDENTIFIER com.example.llink
+        MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION}
+        MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
+        MACOSX_BUNDLE TRUE
+        WIN32_EXECUTABLE TRUE
 )
 
-target_link_libraries(appllink
-    PRIVATE Qt6::Quick
+target_link_libraries(llink
+        PRIVATE
+        Qt6::Core
+        Qt6::Gui
+        Qt6::Widgets
 )
 
 include(GNUInstallDirs)
-install(TARGETS appllink
-    BUNDLE DESTINATION .
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+install(TARGETS llink
+        BUNDLE DESTINATION .
+        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+        RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
+
+qt_generate_deploy_app_script(
+        TARGET llink
+        OUTPUT_SCRIPT deploy_script
+        NO_UNSUPPORTED_PLATFORM_ERROR
+)
+install(SCRIPT ${deploy_script})

ui/Main.qml

@@ -1,8 +0,0 @@
-import QtQuick
-
-Window {
-    width: 640
-    height: 480
-    visible: true
-    title: qsTr("Hello World")
-}

ui/main.cpp

@@ -1,20 +1,11 @@
-#include <QGuiApplication>
-#include <QQmlApplicationEngine>
+#include <QApplication>
+#include "src/MainWindow.h"
 
 int main(int argc, char *argv[])
 {
-    qDebug() << "Hello test";
+    QApplication a(argc, argv);
 
-    QGuiApplication app(argc, argv);
-
-    QQmlApplicationEngine engine;
-    QObject::connect(
-        &engine,
-        &QQmlApplicationEngine::objectCreationFailed,
-        &app,
-        []() { QCoreApplication::exit(-1); },
-        Qt::QueuedConnection);
-    engine.loadFromModule("llink", "Main");
-
-    return app.exec();
+    MainWindow w;
+    w.show();
+    return a.exec();
 }

ui/src/MainWindow.cpp

@@ -0,0 +1,27 @@
+//
+// Created by arjun-flowylabs on 1/10/2026.
+//
+
+#include "MainWindow.h"
+#include <QPushButton>
+#include <QVBoxLayout>
+
+MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent)
+{
+    QWidget *centralWidget = new QWidget(this);
+    QVBoxLayout *layout = new QVBoxLayout(centralWidget);
+    QPushButton *button = new QPushButton("Clickable Button", centralWidget);
+
+    layout->addWidget(button);
+    layout->setAlignment(button, Qt::AlignCenter);
+    setCentralWidget(centralWidget);
+}
+
+void MainWindow::resizeEvent(QResizeEvent *event)
+{
+    QMainWindow::resizeEvent(event); // Let layout finish first
+}
+
+MainWindow::~MainWindow()
+{
+}

ui/src/MainWindow.h

@@ -0,0 +1,25 @@
+//
+// Created by arjun-flowylabs on 1/10/2026.
+//
+
+#ifndef LLINK_MAINWINDOW_H
+#define LLINK_MAINWINDOW_H
+
+#include <QMainWindow>
+
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr);
+
+    ~MainWindow();
+
+protected:
+    void resizeEvent(QResizeEvent *event) override;
+
+private:
+};
+
+#endif //LLINK_MAINWINDOW_H