nanogui_demo2.d

import arsd.nanovega;
import nanogui.sdlbackend : SdlBackend;

class MyGui : SdlBackend
{
	this(int w, int h, string title)
	{
		super(w, h, title);
	}

	override void onVisibleForTheFirstTime()
	{
		import nanogui.widget, nanogui.screen, nanogui.checkbox, nanogui.label,
			nanogui.common, nanogui.window, nanogui.layout, nanogui.button, nanogui.popupbutton,
			nanogui.entypo, nanogui.popup, nanogui.vscrollpanel,
			nanogui.combobox, nanogui.textbox;

		auto window = new Window(screen, "Button demo", true);
		window.position(Vector2i(15, 15));
		window.size = Vector2i(140, 170);
		window.layout(new BoxLayout(Orientation.Vertical));

		new Label(window, "Push buttons", "sans-bold");

		auto checkbox = new CheckBox(window, "Checkbox #1", null);
		checkbox.position = Vector2i(100, 190);
		checkbox.size = checkbox.preferredSize(ctx);
		checkbox.checked = true;

		auto label = new Label(window, "Label");
		label.position = Vector2i(100, 300);
		label.size = label.preferredSize(ctx);

		Popup popup;

		auto btn = new Button(window, "Button");
		btn.callback = () { 
			popup.children[0].visible = !popup.children[0].visible; 
			label.caption = popup.children[0].visible ? 
				"Popup label is visible" : "Popup label isn't visible";
		};

		auto popupBtn = new PopupButton(window, "PopupButton", Entypo.ICON_EXPORT);
		popup = popupBtn.popup;
		popup.layout(new GroupLayout());
		new Label(popup, "Arbitrary widgets can be placed here");
		new CheckBox(popup, "A check box", null);

		window.tooltip = "Button demo tooltip";

		// now we should do layout manually yet
		screen.performLayout(ctx);
	}
}

void main()
{
	auto gui = new MyGui(1000, 800, "Nanogui demo");
	gui.run();
}