user interface library

1 files changed, 58 insertions, 0 deletions

diff --git a/src/ui/menu.cc b/src/ui/menu.cc
new file mode 100644
index 0000000..c20457d
--- /dev/null
+++ b/src/ui/menu.cc
@@ -0,0 +1,58 @@
+/*
+   ui/menu.cc
+   This file is part of the Osirion project and is distributed under
+   the terms of the GNU General Public License version 2
+*/
+
+#include "ui/label.h"
+#include "ui/button.h"
+#include "ui/menu.h"
+#include "ui/ui.h"
+
+namespace ui {
+
+const float element_width = 256.0f;
+const float element_height = 64.0f;
+const float element_margin = 24.0f;
+
+Menu::Menu(Window *parent, const char *label) : Window(parent), menu_container(this)
+{
+	set_label(label);
+	set_border(false);
+
+	menu_container.set_label("container");
+}
+
+Menu::~Menu()
+{
+}
+
+void Menu::add_label(char const * text)
+{
+	new Label(&menu_container, text);
+}
+
+void Menu::add_button(char const *text, char const *command)
+{
+	new Button(&menu_container, text, command);
+}
+
+void Menu::resize()
+{
+	set_size(parent()->size().x, parent()->size().y);
+
+	float n = (float) menu_container.children().size();
+	menu_container.set_size(2.0f * element_width, n * (element_height + element_margin) + element_height);
+	menu_container.set_location(element_margin, (height() - menu_container.height()) / 2.0f);
+	
+	// reposition all children within the container
+	size_t i = 0;
+	for (Children::iterator it = menu_container.children().begin(); it != menu_container.children().end(); it++) {
+		Widget *w = (*it);
+		w->set_size(element_width, element_height);
+		w->set_location(element_width * 0.5f, element_height * 0.5f + i * (element_height + element_margin));
+		i++;
+	}
+}
+
+}