ptk/include/ptk.h

#ifndef PTK_PTK_H_
#define PTK_PTK_H_

#include <ptk_vec.h>

#include <stdbool.h>
#include <stdint.h>
#include <stddef.h>

typedef struct {
    uint32_t major;
    uint32_t minor;
    uint32_t patch;
} PtkVersion;

bool ptk_init(size_t width, size_t height, const char *title, PtkVersion application_version);

typedef struct PtkComponent *PtkHandle;
#define PTK_NULL_HANDLE (void *)0

typedef enum {
    PTK_COMPONENT_TYPE_BOX = 0,
    PTK_COMPONENT_TYPE_TRIANGLE = 1,
    PTK_COMPONENT_TYPE_RECT = 2,
    PTK_COMPONENT_TYPE_ELLIPSE = 3,
    PTK_COMPONENT_TYPE_BUTTON = 4,
} PtkComponentType;

typedef struct PtkComponent {
    PtkComponentType type;
} PtkComponent;

typedef struct PtkBox {
    PtkComponentType type;
    size_t child_count;
    PtkHandle *children;
} PtkBox;

typedef struct PtkTriangle {
    PtkComponentType type;
    PtkPos vertices[3];
    PtkColor color;
} PtkTriangle;

typedef struct PtkRect {
    PtkComponentType type;
    PtkPos top_left;
    PtkSize size;
    PtkColor color;
} PtkRect;

typedef struct PtkEllipse {
    PtkComponentType type;
    PtkPos center;
    PtkSize radii;
    PtkColor color;
} PtkEllipse;

typedef void (*MouseButtonCallback)(int button, int action, int mods);

typedef struct PtkButton {
    PtkComponentType type;
    PtkHandle hitbox;
    MouseButtonCallback on_press;
} PtkButton;

PtkHandle ptk_box(size_t child_count, PtkHandle *children);
PtkHandle ptk_triangle(PtkPos vertices[3], PtkColor color);
PtkHandle ptk_rect(PtkPos top_left, PtkSize size, PtkColor color);
PtkHandle ptk_square(PtkPos top_left, float size, PtkColor color);
PtkHandle ptk_ellipse(PtkPos center, PtkSize radii, PtkColor color);
PtkHandle ptk_circle(PtkPos center, float radius, PtkColor color);
PtkHandle ptk_button(PtkHandle hitbox, MouseButtonCallback on_press);

#define PTK_BOX(...) ptk_box(sizeof((PtkHandle []){ __VA_ARGS__ }) / sizeof(PtkHandle), (PtkHandle []) { __VA_ARGS__ })

int ptk_run(PtkHandle root);

#endif // PTK_PTK_H_