pxl8/src/gui/pxl8_gui.h

#pragma once

#include "pxl8_gfx.h"
#include "pxl8_types.h"

typedef struct {
    i32 cursor_x;
    i32 cursor_y;
    bool cursor_down;
    bool cursor_clicked;
    u32 hot_id;
    u32 active_id;
} pxl8_gui_state;

#ifdef __cplusplus
extern "C" {
#endif

pxl8_gui_state* pxl8_gui_state_create(void);
void pxl8_gui_state_destroy(pxl8_gui_state* state);

void pxl8_gui_get_cursor_pos(const pxl8_gui_state* state, i32* x, i32* y);
bool pxl8_gui_is_hovering(const pxl8_gui_state* state);

void pxl8_gui_begin_frame(pxl8_gui_state* state, pxl8_gfx* gfx);
void pxl8_gui_end_frame(pxl8_gui_state* state, pxl8_gfx* gfx);

void pxl8_gui_cursor_down(pxl8_gui_state* state);
void pxl8_gui_cursor_move(pxl8_gui_state* state, i32 x, i32 y);
void pxl8_gui_cursor_up(pxl8_gui_state* state);

bool pxl8_gui_button(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id, i32 x, i32 y, i32 w, i32 h, const char* label);
u8 pxl8_gui_color(pxl8_gfx* gfx, u8 index);
void pxl8_gui_label(pxl8_gfx* gfx, i32 x, i32 y, const char* text, u8 color);
bool pxl8_gui_slider(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id, i32 x, i32 y, i32 w, i32 h, f32* value, f32 min_val, f32 max_val);
bool pxl8_gui_slider_int(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id, i32 x, i32 y, i32 w, i32 h, i32* value, i32 min_val, i32 max_val);
i32 pxl8_gui_toolbar(pxl8_gui_state* state, pxl8_gfx* gfx, u32 base_id,
                     i32 x, i32 y, i32 btn_w, i32 btn_h,
                     const char** labels, i32 count, i32 selected);
void pxl8_gui_window(pxl8_gfx* gfx, i32 x, i32 y, i32 w, i32 h, const char* title);

i32 pxl8_gui_grid_select(pxl8_gui_state* state, pxl8_gfx* gfx, u32 base_id,
                         i32 x, i32 y, i32 cell_w, i32 cell_h,
                         i32 cols, i32 rows, const u8* colors, i32 selected);

void pxl8_gui_image(pxl8_gfx* gfx, u32 texture_id, i32 sx, i32 sy, i32 sw, i32 sh,
                    i32 dx, i32 dy, i32 dw, i32 dh);

void pxl8_gui_panel(pxl8_gfx* gfx, i32 x, i32 y, i32 w, i32 h);

void pxl8_gui_status_bar(pxl8_gfx* gfx, i32 y, i32 screen_w, i32 h, const char* text);

bool pxl8_gui_toggle(pxl8_gui_state* state, pxl8_gfx* gfx, u32 id,
                     i32 x, i32 y, i32 w, i32 h, const char* label, bool active);

#ifdef __cplusplus
}
#endif