[Qt] Add MainWindow class

CMakeLists.txt

@@ -179,8 +179,8 @@ set(RENDERER_SW_SOURCE_FILES src/core/renderer_sw/renderer_sw.cpp)
 
 # Frontend source files
 if(ENABLE_QT_GUI)
-    set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp)
-    set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp)
+    set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp src/panda_qt/main_window.cpp)
+    set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp include/panda_qt/main_window.hpp)
     
     source_group("Source Files\\Qt" FILES ${FRONTEND_SOURCE_FILES})
     source_group("Header Files\\Qt" FILES ${FRONTEND_HEADER_FILES})

include/panda_qt/main_window.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <QApplication>
+#include <QtWidgets>
+
+#include "panda_qt/screen.hpp"
+
+class MainWindow : public QMainWindow {
+	Q_OBJECT
+
+  private:
+	ScreenWidget screen;
+
+  public:
+	MainWindow(QApplication* app, QWidget* parent = nullptr);
+};

src/panda_qt/main.cpp

@@ -1,18 +1,12 @@
 #include <QApplication>
-#include <QtWidgets>
 
+#include "panda_qt/main_window.hpp"
 #include "panda_qt/screen.hpp"
 
 int main(int argc, char *argv[]) {
 	QApplication app(argc, argv);
-	QWidget window;
+	MainWindow window(&app);
 
-	window.resize(320, 240);
 	window.show();
-	window.setWindowTitle("Alber");
-	ScreenWidget screen(&window);
-	screen.show();
-	screen.resize(320, 240);
-
 	return app.exec();
 }

src/panda_qt/main_window.cpp

@@ -0,0 +1,10 @@
+#include "panda_qt/main_window.hpp"
+
+MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent), screen(this) {
+	setWindowTitle("Alber");
+	// Enable drop events for loading ROMs
+	setAcceptDrops(true);
+
+	resize(320, 240);
+	screen.show();
+}

src/panda_qt/screen.cpp

@@ -20,6 +20,8 @@
 #ifdef PANDA3DS_ENABLE_OPENGL
 ScreenWidget::ScreenWidget(QWidget* parent) : QWidget(parent) {
 	// Create a native window for use with our graphics API of choice
+	resize(320, 240);
+	
 	setAutoFillBackground(false);
 	setAttribute(Qt::WA_NativeWindow, true);
 	setAttribute(Qt::WA_NoSystemBackground, true);