Added CodeEditor project to be able to test comfortably the UICodeEditor and the TextDocument.

Renamed Window::setCaption to Window::setTitle.
Several fixes in TextDocument.

src/tools/codeeditor/codeeditor.cpp

@@ -0,0 +1,151 @@
+#include <args/args.hxx>
+#include <eepp/ee.hpp>
+
+EE::Window::Window* win = NULL;
+UISceneNode* uiSceneNode = NULL;
+UICodeEditor* codeEditor = NULL;
+std::string curFile = "untitled";
+const std::string& windowTitle = "eepp - Code Editor";
+bool docDirtyState = false;
+
+void setAppTitle( const std::string& title ) {
+	win->setTitle( windowTitle + String( title.empty() ? "" : " - " + title ) );
+}
+
+void loadFileFromPath( const std::string& path ) {
+	codeEditor->loadFromFile( path );
+	curFile = FileSystem::fileNameFromPath( path );
+	setAppTitle( curFile );
+}
+
+void mainLoop() {
+	if ( codeEditor->isDirty() != docDirtyState ) {
+		docDirtyState = codeEditor->isDirty();
+		setAppTitle( docDirtyState ? curFile + "*" : curFile );
+	}
+
+	win->getInput()->update();
+
+	if ( win->getInput()->isControlPressed() && win->getInput()->isKeyUp( KEY_S ) ) {
+		codeEditor->save();
+	}
+
+	if ( win->getInput()->isKeyUp( KEY_F6 ) ) {
+		uiSceneNode->setHighlightOver( !uiSceneNode->getHighlightOver() );
+	}
+
+	if ( win->getInput()->isKeyUp( KEY_F7 ) ) {
+		uiSceneNode->setDrawBoxes( !uiSceneNode->getDrawBoxes() );
+	}
+
+	if ( win->getInput()->isKeyUp( KEY_F8 ) ) {
+		uiSceneNode->setDrawDebugData( !uiSceneNode->getDrawDebugData() );
+	}
+
+	if ( win->getInput()->isKeyUp( KEY_ESCAPE ) ) {
+		win->close();
+	}
+
+	// Update the UI scene.
+	SceneManager::instance()->update();
+
+	// Check if the UI has been invalidated ( needs redraw ).
+	if ( SceneManager::instance()->getUISceneNode()->invalidated() ) {
+		win->clear();
+
+		// Redraw the UI scene.
+		SceneManager::instance()->draw();
+
+		win->display();
+	} else {
+		Sys::sleep( Milliseconds( win->isVisible() ? 1 : 8 ) );
+	}
+}
+
+EE_MAIN_FUNC int main( int argc, char* argv[] ) {
+	args::ArgumentParser parser( "eepp Code Editor" );
+	args::Positional<std::string> file( parser, "file", "The file path" );
+
+	try {
+		parser.ParseCLI( argc, argv );
+	} catch ( const args::Help& ) {
+		std::cout << parser;
+		return EXIT_SUCCESS;
+	} catch ( const args::ParseError& e ) {
+		std::cerr << e.what() << std::endl;
+		std::cerr << parser;
+		return EXIT_FAILURE;
+	} catch ( args::ValidationError& e ) {
+		std::cerr << e.what() << std::endl;
+		std::cerr << parser;
+		return EXIT_FAILURE;
+	}
+
+	Display* currentDisplay = Engine::instance()->getDisplayManager()->getDisplayIndex( 0 );
+	Float pixelDensity = currentDisplay->getPixelDensity();
+
+	win = Engine::instance()->createWindow(
+		WindowSettings( 1280, 720, windowTitle, WindowStyle::Default, WindowBackend::Default, 32,
+						"assets/icon/ee.png", pixelDensity ),
+		ContextSettings( true ) );
+
+	if ( win->isOpen() ) {
+		win->getInput()->pushCallback( []( InputEvent* event ) {
+			if ( NULL == codeEditor )
+				return;
+
+			if ( event->Type == InputEvent::FileDropped ) {
+				loadFileFromPath( event->file.file );
+			} else if ( event->Type == InputEvent::TextDropped ) {
+				codeEditor->getDocument().textInput( event->textdrop.text );
+			}
+		} );
+
+		PixelDensity::setPixelDensity( eemax( win->getScale(), pixelDensity ) );
+
+		uiSceneNode = UISceneNode::New();
+
+		uiSceneNode->getUIThemeManager()->setDefaultFont(
+			FontTrueType::New( "NotoSans-Regular", "assets/fonts/NotoSans-Regular.ttf" ) );
+
+		FontTrueType::New( "monospace", "assets/fonts/DejaVuSansMono.ttf" );
+
+		SceneManager::instance()->add( uiSceneNode );
+
+		StyleSheetParser cssParser;
+		if ( cssParser.loadFromFile( "assets/ui/breeze.css" ) ) {
+			uiSceneNode->setStyleSheet( cssParser.getStyleSheet() );
+		}
+
+		std::string layout = R"xml(
+			<LinearLayout layout_width="match_parent"
+						  layout_height="match_parent"
+						  orientation="vertical">
+				<CodeEditor id="code_edit"
+					layout_width="match_parent"
+					layout_height="match_parent"
+					 />
+			</LinearLayout>
+		)xml";
+		uiSceneNode->loadLayoutFromString( layout );
+
+		uiSceneNode->bind( "code_edit", codeEditor );
+		codeEditor->setFontSize( 11 );
+
+		if ( file ) {
+			loadFileFromPath( file.Get() );
+		} else {
+			/*UIMessageBox::New( UIMessageBox::OK,
+							   "To load a file add the file path as a command argument or\n"
+							   "drop any text file into the window." )
+				->show();*/
+		}
+
+		win->runMainLoop( &mainLoop );
+	}
+
+	Engine::destroySingleton();
+	MemoryManager::showResults();
+
+	return EXIT_SUCCESS;
+}