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
|
#ifndef ui_hpp
#define ui_hpp
#include "video.hpp"
struct Arena;
struct UI {
struct Rect {
int x, y, w, h;
};
struct Element : Rect {
enum class Type {
label
} type;
Element* next;
static int size(Type t);
};
struct Label : Element {
char* text;
int len;
int x, y;
};
struct Vertex {
float x, y, u, v, r, g, b, a;
};
Arena* arena;
Device* device;
Element* tree;
Texture_Id atlas;
Shader_Id shader;
Vertex_Format_Id vertex_format;
Buffer_Id mesh;
Sampler_Id sampler;
struct {
int vert_binding;
int atlas_binding;
} shader_info;
float ndc[2];
static int text_width(const char* t);
static int text_height(const char* t);
static UI* create(Device* dev, Arena* a, Shader_Id sh);
Element* create_element(Element::Type t);
Label* create_label(const char* t, int x, int y);
void init(Device* dev, Arena* a, Texture_Id atlas, Shader_Id sh);
void destroy();
void update(Arena* s);
void render(Arena* s, Texture_Id target);
int render_label(const Label* l, int off);
};
#endif
|