49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
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#pragma once
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#include "GUI.h" // for Simple_window only (doesn't really belong in Window.h)
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using namespace Graph_lib;
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// Simple_window is basic scaffolding for ultra-simple interaction with graphics
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// it provides one window with one "next" button for ultra-simple animation
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struct Simple_window : Graph_lib::Window
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{
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Simple_window(Point xy, int w, int h, const string& title)
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: Window(xy, w, h, title),
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next_button(Point{x_max() - 70, 0}, 70, 20, "Next", cb_next),
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button_pushed(false)
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{
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attach(next_button);
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}
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void wait_for_button()
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// modified event loop
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// handle all events (as per default), but quit when button_pushed
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// becomes true this allows graphics without control inversion
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{
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while (!button_pushed)
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Fl::wait();
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button_pushed = false;
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Fl::redraw();
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}
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Button next_button;
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private:
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bool button_pushed;
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static void cb_next(Address,
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Address addr) // callback for next_button
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// {
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// reference_to<Simple_window>(addr).next();
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// }
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{
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static_cast<Simple_window*>(addr)->next();
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}
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void next()
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{
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button_pushed = true;
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}
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};
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