HikoGUI
A low latency retained GUI
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spacer_widget.hpp
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1// Copyright Take Vos 2022.
2// Distributed under the Boost Software License, Version 1.0.
3// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
4
9#pragma once
10
11#include "widget.hpp"
12
13namespace hi { inline namespace v1 {
14
19class spacer_widget final : public widget {
20public:
21 using super = widget;
22
23 spacer_widget(widget *parent) noexcept : super(parent) {}
24
25 [[nodiscard]] generator<widget *> children() const noexcept override
26 {
27 co_return;
28 }
29
30 [[nodiscard]] box_constraints update_constraints() noexcept override
31 {
32 _layout = {};
33
34 auto r = box_constraints{};
35 r.maximum = extent2i::large();
36 return r;
37 }
38
39 void set_layout(widget_layout const& context) noexcept override
40 {
41 _layout = context;
42 }
43
44 void draw(draw_context const& context) noexcept {}
45
46 [[nodiscard]] hitbox hitbox_test(point2i position) const noexcept
47 {
48 return hitbox{};
49 }
50};
51
52}} // namespace hi::v1
Defines widget.
DOXYGEN BUG.
Definition algorithm.hpp:15
geometry/margins.hpp
Definition assert.hpp:18
2D constraints.
Definition box_constraints.hpp:25
This GUI widget is used as a spacer between other widget for layout purposes.
Definition spacer_widget.hpp:19
hitbox hitbox_test(point2i position) const noexcept
Find the widget that is under the mouse cursor.
Definition spacer_widget.hpp:46
void draw(draw_context const &context) noexcept
Draw the widget.
Definition spacer_widget.hpp:44
void set_layout(widget_layout const &context) noexcept override
Update the internal layout of the widget.
Definition spacer_widget.hpp:39
box_constraints update_constraints() noexcept override
Update the constraints of the widget.
Definition spacer_widget.hpp:30
An interactive graphical object as part of the user-interface.
Definition widget.hpp:46
widget(widget *parent) noexcept
widget * parent
Pointer to the parent widget.
Definition widget.hpp:51
The layout of a widget.
Definition widget_layout.hpp:41