hittest和修复布局系统

example/src/main.cpp

@@ -3,7 +3,7 @@
 //
 
 #include "mirage.h"
-#include "core/window/render_window.h"
+#include "core/window/mwindow.h"
 #include "widget/compound_widget/mbutton.h"
 #include "widget/panel_widget/mbox.h"
 
@@ -11,12 +11,13 @@ int main(int argc, char* argv[]) {
 	mirage_app app;
 	app.init();
 
-	auto window = std::make_shared<mirage_window>();
+	auto window = std::make_shared<mwindow>();
 	window->create_window(800, 600, L"Hello, World!");
 	window->show();
 
 	mirage_app::get_render_context()->setup_surface(window.get());
 
+	auto border = std::make_shared<mborder>();
 	auto h_box = std::make_shared<mh_box>();
 	auto v_box = std::make_shared<mv_box>();
 	v_box->add_slot()
@@ -62,6 +63,7 @@ int main(int argc, char* argv[]) {
 	[
 		v_box
 	];
+
 	h_box->add_slot()
 	      .stretch()
 	      .margin({ 5 })