[Qt] Add text editor

.gitmodules

@@ -43,3 +43,6 @@
 [submodule "third_party/hydra_core"]
 	path = third_party/hydra_core
 	url = https://github.com/hydra-emu/core
+[submodule "third_party/zep"]
+	path = third_party/zep
+	url = https://github.com/Panda3DS-emu/zep

CMakeLists.txt

@@ -186,12 +186,20 @@ set(RENDERER_SW_SOURCE_FILES src/core/renderer_sw/renderer_sw.cpp)
 # Frontend source files
 if(NOT ANDROID)
     if(ENABLE_QT_GUI)
-        set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp src/panda_qt/main_window.cpp src/panda_qt/about_window.cpp src/panda_qt/config_window.cpp)
-        set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp include/panda_qt/main_window.hpp include/panda_qt/about_window.hpp include/panda_qt/config_window.hpp)
+        set(FRONTEND_SOURCE_FILES src/panda_qt/main.cpp src/panda_qt/screen.cpp src/panda_qt/main_window.cpp src/panda_qt/about_window.cpp
+            src/panda_qt/config_window.cpp src/panda_qt/zep.cpp src/panda_qt/text_editor.cpp
+        )   
+        set(FRONTEND_HEADER_FILES include/panda_qt/screen.hpp include/panda_qt/main_window.hpp include/panda_qt/about_window.hpp
+            include/panda_qt/config_window.hpp include/panda_qt/text_editor.hpp
+        )
 
         source_group("Source Files\\Qt" FILES ${FRONTEND_SOURCE_FILES})
         source_group("Header Files\\Qt" FILES ${FRONTEND_HEADER_FILES})
         include_directories(${Qt6Gui_PRIVATE_INCLUDE_DIRS})
+
+        include_directories(third_party/zep/include) # Include zep for text editor usage
+        configure_file(third_party/zep/cmake/config_app.h.cmake ${CMAKE_BINARY_DIR}/zep_config/config_app.h)
+        include_directories(${CMAKE_BINARY_DIR}/zep_config)
     else()
         set(FRONTEND_SOURCE_FILES src/panda_sdl/main.cpp src/panda_sdl/frontend_sdl.cpp)
         set(FRONTEND_HEADER_FILES "")
@@ -428,6 +436,9 @@ endif()
 
 if(ENABLE_QT_GUI)
     target_compile_definitions(Alber PUBLIC "PANDA3DS_FRONTEND_QT=1")
+    target_compile_definitions(Alber PUBLIC "ZEP_QT=1")
+    target_compile_definitions(Alber PUBLIC "ZEP_FEATURE_CPP_FILE_SYSTEM=1")
+
     target_link_libraries(Alber PRIVATE Qt6::Widgets)
 
     if(LINUX OR FREEBSD)

include/panda_qt/main_window.hpp

@@ -13,6 +13,7 @@
 #include "panda_qt/about_window.hpp"
 #include "panda_qt/config_window.hpp"
 #include "panda_qt/screen.hpp"
+#include "panda_qt/text_editor.hpp"
 #include "services/hid.hpp"
 
 class MainWindow : public QMainWindow {
@@ -20,9 +21,7 @@ class MainWindow : public QMainWindow {
 
   private:
 	// Types of messages we might send from the GUI thread to the emulator thread
-	enum class MessageType {
-		LoadROM, Reset, Pause, Resume, TogglePause, DumpRomFS, PressKey, ReleaseKey
-	};
+	enum class MessageType { LoadROM, Reset, Pause, Resume, TogglePause, DumpRomFS, PressKey, ReleaseKey };
 
 	// Tagged union representing our message queue messages
 	struct EmulatorMessage {
@@ -43,7 +42,7 @@ class MainWindow : public QMainWindow {
 	Emulator* emu = nullptr;
 	std::thread emuThread;
 
-	std::atomic<bool> appRunning = true; // Is the application itself running?
+	std::atomic<bool> appRunning = true;  // Is the application itself running?
 	// Used for synchronizing messages between the emulator and UI
 	std::mutex messageQueueMutex;
 	std::vector<EmulatorMessage> messageQueue;
@@ -51,12 +50,14 @@ class MainWindow : public QMainWindow {
 	ScreenWidget screen;
 	AboutWindow* aboutWindow;
 	ConfigWindow* configWindow;
+	TextEditorWindow* luaEditor;
 	QMenuBar* menuBar = nullptr;
 
 	void swapEmuBuffer();
 	void emuThreadMainLoop();
 	void selectROM();
 	void dumpRomFS();
+	void openLuaEditor();
 	void showAboutMenu();
 	void sendMessage(const EmulatorMessage& message);
 	void dispatchMessage(const EmulatorMessage& message);

include/panda_qt/text_editor.hpp

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QApplication>
+#include <QDialog>
+#include <QWidget>
+#include <string>
+
+#include "zep.h"
+#include "zep/mode_repl.h"
+#include "zep/regress.h"
+
+class TextEditorWindow : public QDialog {
+	Q_OBJECT
+
+  private:
+	Zep::ZepWidget_Qt zepWidget;
+	Zep::IZepReplProvider replProvider;
+	static constexpr float fontSize = 14.0f;
+
+  public:
+	TextEditorWindow(QWidget* parent, const std::string& filename, const std::string& initialText);
+};

src/panda_qt/main_window.cpp

@@ -36,7 +36,9 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	connect(configureAction, &QAction::triggered, this, [this]() { configWindow->show(); });
 
 	auto dumpRomFSAction = toolsMenu->addAction(tr("Dump RomFS"));
+	auto luaEditorAction = toolsMenu->addAction(tr("Open Lua Editor"));
 	connect(dumpRomFSAction, &QAction::triggered, this, &MainWindow::dumpRomFS);
+	connect(luaEditorAction, &QAction::triggered, this, &MainWindow::openLuaEditor);
 
 	auto aboutAction = aboutMenu->addAction(tr("About Panda3DS"));
 	connect(aboutAction, &QAction::triggered, this, &MainWindow::showAboutMenu);
@@ -44,6 +46,7 @@ MainWindow::MainWindow(QApplication* app, QWidget* parent) : QMainWindow(parent)
 	// Set up misc objects
 	aboutWindow = new AboutWindow(nullptr);
 	configWindow = new ConfigWindow(this);
+	luaEditor = new TextEditorWindow(this, "script.lua", "");
 
 	emu = new Emulator();
 	emu->setOutputSize(screen.surfaceWidth, screen.surfaceHeight);
@@ -133,6 +136,7 @@ MainWindow::~MainWindow() {
 	delete menuBar;
 	delete aboutWindow;
 	delete configWindow;
+	delete luaEditor;
 }
 
 // Send a message to the emulator thread. Lock the mutex and just push back to the vector.
@@ -181,6 +185,8 @@ void MainWindow::showAboutMenu() {
 	about.exec();
 }
 
+void MainWindow::openLuaEditor() { luaEditor->show(); }
+
 void MainWindow::dispatchMessage(const EmulatorMessage& message) {
 	switch (message.type) {
 		case MessageType::LoadROM:

src/panda_qt/text_editor.cpp

@@ -0,0 +1,20 @@
+#include "panda_qt/text_editor.hpp"
+#include <QVBoxLayout>
+
+using namespace Zep;
+
+TextEditorWindow::TextEditorWindow(QWidget* parent, const std::string& filename, const std::string& initialText)
+	: QDialog(parent), zepWidget(this, qApp->applicationDirPath().toStdString(), fontSize) {
+	resize(600, 600);
+
+	// Register our extensions
+	ZepRegressExCommand::Register(zepWidget.GetEditor());
+	ZepReplExCommand::Register(zepWidget.GetEditor(), &replProvider);
+
+	zepWidget.GetEditor().SetGlobalMode(Zep::ZepMode_Standard::StaticName());
+	zepWidget.GetEditor().InitWithText(filename, initialText);
+	
+	QVBoxLayout* mainLayout = new QVBoxLayout();
+	setLayout(mainLayout);
+	mainLayout->addWidget(&zepWidget);
+}

src/panda_qt/zep.cpp

@@ -0,0 +1,2 @@
+#define ZEP_SINGLE_HEADER_BUILD
+#include "zep.h"

third_party/zep

@@ -0,0 +1 @@
+Subproject commit c125fcc3961dcb7c4ac073f7259edb4675209676