[nostalgia/studio] Add Export menu item and hook

src/nostalgia/studio/lib/editor.cpp

@@ -13,6 +13,9 @@ namespace nostalgia::studio {
 Editor::Editor(QWidget *parent): QWidget(parent) {
 }
 
+void Editor::exportFile() {
+}
+
 void Editor::save() {
     saveItem();
     setUnsavedChanges(false);
@@ -20,13 +23,26 @@ void Editor::save() {
 
 void Editor::setUnsavedChanges(bool uc) {
     m_unsavedChanges = uc;
-    emit unsavedChangesUpdate(uc);
+    emit unsavedChangesChanged(uc);
+}
+
+[[nodiscard]] bool Editor::unsavedChanges() noexcept {
+	return m_unsavedChanges;
 }
 
 QUndoStack *Editor::undoStack() {
 	return &m_cmdStack;
 }
 
+void Editor::setExportable(bool exportable) {
+	m_exportable = exportable;
+	emit exportableChanged(exportable);
+}
+
+bool Editor::exportable() {
+	return m_exportable;
+}
+
 void Editor::saveItem() {
 }
 

src/nostalgia/studio/lib/editor.hpp

@@ -21,6 +21,7 @@ class NOSTALGIASTUDIO_EXPORT Editor: public QWidget {
 	private:
 		QUndoStack m_cmdStack;
 		bool m_unsavedChanges = false;
+		bool m_exportable = false;
 
 	public:
 		Editor(QWidget *parent);
@@ -32,6 +33,8 @@ class NOSTALGIASTUDIO_EXPORT Editor: public QWidget {
 		 */
 		virtual QString itemName() = 0;
 
+		virtual void exportFile();
+
 		/**
 		 * Save changes to item being edited.
 		 */
@@ -39,15 +42,21 @@ class NOSTALGIASTUDIO_EXPORT Editor: public QWidget {
 
 		/**
 		 * Sets indication of item being edited has unsaved changes. Also emits
-		 * unsavedChangesUpdate signal.
+		 * unsavedChangesChanged signal.
 		 */
 		void setUnsavedChanges(bool);
 
+		[[nodiscard]] bool unsavedChanges() noexcept;
+
 		/**
 		 * Returns the undo stack holding changes to the item being edited.
 		 */
 		QUndoStack *undoStack();
 
+		void setExportable(bool);
+
+		bool exportable();
+
 	protected:
 		/**
 		 * Save changes to item being edited.
@@ -55,7 +64,9 @@ class NOSTALGIASTUDIO_EXPORT Editor: public QWidget {
 		virtual void saveItem();
 
 	signals:
-		void unsavedChangesUpdate(bool);
+		void unsavedChangesChanged(bool);
+
+		void exportableChanged(bool);
 
 };
 

src/nostalgia/studio/mainwindow.cpp

@@ -162,6 +162,16 @@ void MainWindow::setupMenu() {
 	);
 	m_saveAction->setEnabled(false);
 
+	// Save Project
+	m_exportAction = addAction(
+		fileMenu,
+		tr("&Export File..."),
+		tr(""),
+		this,
+		SLOT(exportFile())
+	);
+	m_exportAction->setEnabled(false);
+
 	// Exit
 	addAction(
 		fileMenu,
@@ -458,6 +468,10 @@ void MainWindow::saveFile() {
 	m_currentEditor->save();
 }
 
+void MainWindow::exportFile() {
+	m_currentEditor->exportFile();
+}
+
 void MainWindow::closeTab(int idx) {
 	auto tab = static_cast<studio::Editor*>(m_tabs->widget(idx));
 	m_undoGroup.removeStack(tab->undoStack());
@@ -480,13 +494,17 @@ void MainWindow::moveTab(int from, int to) {
 void MainWindow::changeTab(int idx) {
 	auto tab = dynamic_cast<studio::Editor*>(m_tabs->widget(idx));
 	if (m_currentEditor) {
-		disconnect(m_currentEditor, &Editor::unsavedChangesUpdate, m_saveAction, &QAction::setEnabled);
-		disconnect(m_currentEditor, &Editor::unsavedChangesUpdate, this, &MainWindow::markUnsavedChanges);
+		disconnect(m_currentEditor, &Editor::unsavedChangesChanged, m_saveAction, &QAction::setEnabled);
+		disconnect(m_currentEditor, &Editor::unsavedChangesChanged, this, &MainWindow::markUnsavedChanges);
+		disconnect(m_currentEditor, &Editor::exportableChanged, m_exportAction, &QAction::setEnabled);
 	}
 	m_currentEditor = tab;
 	if (m_currentEditor) {
-		connect(m_currentEditor, &Editor::unsavedChangesUpdate, m_saveAction, &QAction::setEnabled);
-		connect(m_currentEditor, &Editor::unsavedChangesUpdate, this, &MainWindow::markUnsavedChanges);
+		m_saveAction->setEnabled(m_currentEditor->unsavedChanges());
+		connect(m_currentEditor, &Editor::unsavedChangesChanged, m_saveAction, &QAction::setEnabled);
+		connect(m_currentEditor, &Editor::unsavedChangesChanged, this, &MainWindow::markUnsavedChanges);
+		m_exportAction->setEnabled(m_currentEditor->exportable());
+		connect(m_currentEditor, &Editor::exportableChanged, m_exportAction, &QAction::setEnabled);
 		m_undoGroup.setActiveStack(tab->undoStack());
 	} else {
 		m_undoGroup.setActiveStack(nullptr);

src/nostalgia/studio/mainwindow.hpp

@@ -74,6 +74,7 @@ class MainWindow: public QMainWindow {
 		NostalgiaStudioState m_state;
 		QAction *m_importAction = nullptr;
 		QAction *m_saveAction = nullptr;
+		QAction *m_exportAction = nullptr;
 		Context m_ctx;
 		QPointer<QMenu> m_viewMenu;
 		QVector<QPointer<QDockWidget>> m_dockWidgets;
@@ -144,6 +145,8 @@ class MainWindow: public QMainWindow {
 
 		void saveFile();
 
+		void exportFile();
+
 		void closeTab(int idx);
 
 		void moveTab(int from, int to);