blob: 0ec72a6303c8679c353db0b9f1059d3fedc47430 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* Copyright 2023 jacqueline <me@jacqueline.id.au>
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#pragma once
#include <memory>
#include "core/lv_group.h"
#include "core/lv_obj.h"
#include "core/lv_obj_tree.h"
#include "lvgl.h"
#include "widget_top_bar.hpp"
namespace ui {
/*
* Base class for ever discrete screen in the app. Provides a consistent
* interface that can be used for transitioning between screens, adding them to
* back stacks, etc.
*/
class Screen {
public:
Screen() : root_(lv_obj_create(NULL)), group_(lv_group_create()) {}
virtual ~Screen() {
// The group *must* be deleted first. Otherwise, focus events will be
// generated whilst deleting the object tree, which causes a big mess.
lv_group_del(group_);
lv_obj_del(root_);
}
/*
* Called periodically to allow the screen to update itself, e.g. to handle
* std::futures that are still loading in.
*/
virtual auto Tick() -> void {}
auto UpdateTopBar(const widgets::TopBar::State& state) -> void;
auto root() -> lv_obj_t* { return root_; }
auto group() -> lv_group_t* { return group_; }
protected:
auto CreateTopBar(lv_obj_t* parent, const widgets::TopBar::Configuration&)
-> widgets::TopBar*;
lv_obj_t* const root_;
lv_group_t* const group_;
private:
std::unique_ptr<widgets::TopBar> top_bar_;
};
} // namespace ui
|
