vscroll_popup_demo.cpp

#include <nanogui/nanogui.h>
#include <iostream>

using namespace nanogui;
using std::to_string;
using std::cout;

int main(int /* argc */, char ** /* argv */){
	nanogui::init();
	Screen *screen = new Screen(Vector2i(500, 500), "Issue Demo");
	Window *window = new Window(screen, "VScrollPanel");
	window->setLayout(new GroupLayout());
	window->setPosition(Vector2i(0, 0));

	VScrollPanel *scroll_panel = new VScrollPanel(window);
	scroll_panel->setFixedSize(Vector2i(125, 200));

	Widget *popups = new Widget(scroll_panel);
	popups->setLayout(new BoxLayout(Orientation::Vertical, Alignment::Minimum, 0, 0));
	for (int i = 0; i < 15; i++){
		PopupButton* popupButton = new PopupButton(popups, "Popup " + to_string(i));

		(new Button(popupButton->popup(), "Click Me!"))->setCallback([i]() { cout << "Clicked Button " << to_string(i) << "\n"; });
	}

	screen->setVisible(true);
	screen->performLayout();

	nanogui::mainloop();

	nanogui::shutdown();
	return 0;
}