eepp:

Added Window::showMessageBox.
ecode:
Closes SpartanJ/ecode#93 (ecode does not properly warn the user of the lack of GPU acceleration).
Minor refactor.

include/eepp/ui/doc/textdocument.hpp

@@ -87,8 +87,7 @@ class EE_API TextDocument {
 			onDocumentLoaded( doc );
 		}
 		virtual void onDocumentSyntaxDefinitionChange( const SyntaxDefinition& ) {}
-		virtual void onDocumentMoveHighlight( const Int64& /*fromLine*/,
-											  const Int64& /*numLines*/ ){};
+		virtual void onDocumentLineMove( const Int64& /*fromLine*/, const Int64& /*numLines*/ ){};
 	};
 
 	TextDocument( bool verbose = true );
@@ -634,7 +633,7 @@ class EE_API TextDocument {
 
 	void notifySyntaxDefinitionChange();
 
-	void notifiyDocumentMoveHighlight( const Int64& fromLine, const Int64& numLines );
+	void notifiyDocumenLineMove( const Int64& fromLine, const Int64& numLines );
 
 	void insertAtStartOfSelectedLines( const String& text, bool skipEmpty );
 

include/eepp/window/window.hpp

@@ -463,8 +463,21 @@ class EE_API Window {
 	 * per second. */
 	const System::Time& getRenderTimePerSecond() const;
 
+	/** @return The last windowed size of the window */
 	const Sizei& getLastWindowedSize() const;
 
+	/** @return True if implements native message boxes */
+	virtual bool hasNativeMessageBox() const { return false; };
+
+	/** Native message box types */
+	enum class MessageBoxType { Error, Warning, Information };
+
+	/** Shows a native message box.
+	 *  @return True if message box was shown
+	*/
+	virtual bool showMessageBox( const MessageBoxType& type, const std::string& title,
+								 const std::string& message );
+
   protected:
 	friend class Engine;
 	friend class Input;

src/eepp/ui/doc/textdocument.cpp

@@ -917,7 +917,7 @@ TextPosition TextDocument::insert( const size_t& cursorIdx, TextPosition positio
 
 	if ( linesAdd > 0 ) {
 		mHighlighter->moveHighlight( position.line(), linesAdd );
-		notifiyDocumentMoveHighlight( position.line(), linesAdd );
+		notifiyDocumenLineMove( position.line(), linesAdd );
 	}
 
 	notifyTextChanged( { { position, position }, text } );
@@ -1062,7 +1062,7 @@ size_t TextDocument::remove( const size_t& cursorIdx, TextRange range,
 
 	if ( linesRemoved > 0 ) {
 		mHighlighter->moveHighlight( range.start().line(), -linesRemoved );
-		notifiyDocumentMoveHighlight( range.start().line(), -linesRemoved );
+		notifiyDocumenLineMove( range.start().line(), -linesRemoved );
 	}
 
 	notifyTextChanged( { originalRange, "" } );
@@ -2598,10 +2598,10 @@ void TextDocument::notifySyntaxDefinitionChange() {
 	}
 }
 
-void TextDocument::notifiyDocumentMoveHighlight( const Int64& fromLine, const Int64& numLines ) {
+void TextDocument::notifiyDocumenLineMove( const Int64& fromLine, const Int64& numLines ) {
 	Lock l( mClientsMutex );
 	for ( auto& client : mClients ) {
-		client->onDocumentMoveHighlight( fromLine, numLines );
+		client->onDocumentLineMove( fromLine, numLines );
 	}
 }
 

src/eepp/window/backend/SDL2/windowsdl2.cpp

@@ -828,6 +828,28 @@ Float WindowSDL::getScale() {
 	return (Float)realX / (Float)scaledX;
 }
 
+bool WindowSDL::hasNativeMessageBox() const {
+	return true;
+}
+
+Uint32 toSDLMsgBoxType( const Window::MessageBoxType& type ) {
+	switch ( type ) {
+		case Window::MessageBoxType::Error:
+			return SDL_MESSAGEBOX_ERROR;
+		case Window::MessageBoxType::Warning:
+			return SDL_MESSAGEBOX_WARNING;
+		case Window::MessageBoxType::Information:
+			return SDL_MESSAGEBOX_INFORMATION;
+	}
+	return SDL_MESSAGEBOX_INFORMATION;
+}
+
+bool WindowSDL::showMessageBox( const MessageBoxType& type, const std::string& title,
+								const std::string& message ) {
+	return 0 == SDL_ShowSimpleMessageBox( toSDLMsgBoxType( type ), title.c_str(), message.c_str(),
+										  mSDLWindow );
+}
+
 SDL_Window* WindowSDL::GetSDLWindow() const {
 	return mSDLWindow;
 }

src/eepp/window/backend/SDL2/windowsdl2.hpp

@@ -79,6 +79,11 @@ class EE_API WindowSDL : public Window {
 
 	virtual Float getScale();
 
+	virtual bool hasNativeMessageBox() const;
+
+	virtual bool showMessageBox( const MessageBoxType& type, const std::string& title,
+								 const std::string& message );
+
 	SDL_Window* GetSDLWindow() const;
 
 	void startTextInput();

src/eepp/window/window.cpp

@@ -341,6 +341,10 @@ const Sizei& Window::getLastWindowedSize() const {
 	return mLastWindowedSize;
 }
 
+bool Window::showMessageBox( const MessageBoxType&, const std::string&, const std::string& ) {
+	return false;
+}
+
 void Window::calculateFps() {
 	if ( mFrameData.FPS.LastCheck.getElapsedTime().asSeconds() >= 1.f ) {
 		mFrameData.FPS.Current = mFrameData.FPS.Count;

src/tools/ecode/ecode.cpp

@@ -2929,6 +2929,19 @@ void App::init( const LogLevel& logLevel, std::string file, const Float& pidelDe
 			   ecode::Version::getCodename().c_str() );
 
 	if ( mWindow->isOpen() ) {
+	// Only verify GPU driver availability on Windows.
+	// macOS will have at least a fallback renderer
+	// Linux will have at least Mesa drivers with LLVM Pipe
+#if EE_PLATFORM == EE_PLATFORM_WIN
+		if ( !GLi->shadersSupported() ) {
+			mWindow->showMessageBox(
+				EE::Window::Window::MessageBoxType::Error, "ecode",
+				"ecode detected that there are no GPU drivers available or that the GPU does not "
+				"support shaders.\nThis will prevent ecode to properly function.\nPlease check "
+				"that your GPU drivers are installed." );
+			return;
+		}
+#endif
 #if EE_PLATFORM == EE_PLATFORM_MACOSX
 		macOS_CreateApplicationMenus();
 #endif

src/tools/ecode/plugins/lsp/lspdocumentclient.cpp

@@ -233,7 +233,7 @@ void LSPDocumentClient::processTokens( const LSPSemanticTokensDelta& tokens ) {
 	mRunningSemanticTokens = false;
 }
 
-void LSPDocumentClient::onDocumentMoveHighlight( const Int64& fromLine, const Int64& numLines ) {
+void LSPDocumentClient::onDocumentLineMove( const Int64& fromLine, const Int64& numLines ) {
 	Int64 linesCount = mDoc->linesCount();
 	if ( numLines > 0 ) {
 		for ( Int64 i = linesCount - 1; i >= fromLine; --i ) {

src/tools/ecode/plugins/lsp/lspdocumentclient.hpp

@@ -37,7 +37,7 @@ class LSPDocumentClient : public TextDocument::Client {
 	virtual void onDocumentDirtyOnFileSystem( TextDocument* );
 	virtual void onDocumentMoved( TextDocument* );
 	virtual void onDocumentReloaded( TextDocument* );
-	virtual void onDocumentMoveHighlight( const Int64& fromLine, const Int64& numLines );
+	virtual void onDocumentLineMove( const Int64& fromLine, const Int64& numLines );
 
 	void notifyOpen();