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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// license:BSD-3-Clause
// copyright-holders:Vas Crabb
/***************************************************************************
ui/textbox.h
Menu that displays a non-interactive text box
***************************************************************************/
#ifndef MAME_FRONTEND_UI_TEXTBOX_H
#define MAME_FRONTEND_UI_TEXTBOX_H
#include "ui/menu.h"
#include "ui/text.h"
#include <chrono>
#include <optional>
#include <string>
#include <tuple>
#include <utility>
namespace ui {
class menu_textbox : public menu
{
public:
virtual ~menu_textbox() override;
protected:
menu_textbox(mame_ui_manager &mui, render_container &container);
void reset_layout();
virtual void populate_text(std::optional<text_layout> &layout, float &width, int &lines) = 0;
virtual void recompute_metrics(uint32_t width, uint32_t height, float aspect) override;
virtual std::tuple<int, bool, bool> custom_pointer_updated(bool changed, ui_event const &uievt) override;
virtual bool custom_mouse_scroll(int lines) override;
virtual bool handle(event const *ev) override;
private:
enum class pointer_action
{
NONE,
SCROLL_UP,
SCROLL_DOWN,
SCROLL_DRAG,
CHECK_EXIT
};
virtual void draw(uint32_t flags) override;
bool scroll_if_expired(std::chrono::steady_clock::time_point now);
bool pointer_in_line(float y, int line) const;
std::optional<text_layout> m_layout;
std::pair<float, float> m_line_bounds;
float m_visible_top;
float m_layout_width;
float m_desired_width;
int m_desired_lines;
int m_window_lines;
int m_top_line;
pointer_action m_pointer_action;
std::chrono::steady_clock::time_point m_scroll_repeat;
std::pair<float, float> m_base_pointer;
std::pair<float, float> m_last_pointer;
int m_scroll_base;
};
class menu_fixed_textbox : public menu_textbox
{
public:
menu_fixed_textbox(
mame_ui_manager &mui,
render_container &container,
std::string &&headig,
std::string &&content);
virtual ~menu_fixed_textbox() override;
protected:
virtual void recompute_metrics(uint32_t width, uint32_t height, float aspect) override;
virtual void custom_render(uint32_t flags, void *selectedref, float top, float bottom, float origx1, float origy1, float origx2, float origy2) override;
virtual void populate_text(std::optional<text_layout> &layout, float &width, int &lines) override;
private:
virtual void populate() override;
std::string const m_heading;
std::string const m_content;
};
} // namespace ui
#endif // MAME_FRONTEND_UI_TEXTBOX_H
|