nuklear.h

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#ifndef NK_NUKLEAR_H_
#define NK_NUKLEAR_H_
 
#ifdef __cplusplus
extern "C" {
#endif
/*
 * ==============================================================
 *
 *                          CONSTANTS
 *
 * ===============================================================
 */
 
#define NK_UNDEFINED (-1.0f)
#define NK_UTF_INVALID 0xFFFD 
#define NK_UTF_SIZE 4 
#ifndef NK_INPUT_MAX
  #define NK_INPUT_MAX 16
#endif
#ifndef NK_MAX_NUMBER_BUFFER
  #define NK_MAX_NUMBER_BUFFER 64
#endif
#ifndef NK_SCROLLBAR_HIDING_TIMEOUT
  #define NK_SCROLLBAR_HIDING_TIMEOUT 4.0f
#endif
/*
 * ==============================================================
 *
 *                          HELPER
 *
 * ===============================================================
 */
 
#ifndef NK_API
  #ifdef NK_PRIVATE
    #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199409L))
      #define NK_API static inline
    #elif defined(__cplusplus)
      #define NK_API static inline
    #else
      #define NK_API static
    #endif
  #else
    #define NK_API extern
  #endif
#endif
#ifndef NK_LIB
  #ifdef NK_SINGLE_FILE
    #define NK_LIB static
  #else
    #define NK_LIB extern
  #endif
#endif
 
#define NK_INTERN static
#define NK_STORAGE static
#define NK_GLOBAL static
 
#define NK_FLAG(x) (1 << (x))
#define NK_STRINGIFY(x) #x
#define NK_MACRO_STRINGIFY(x) NK_STRINGIFY(x)
#define NK_STRING_JOIN_IMMEDIATE(arg1, arg2) arg1 ## arg2
#define NK_STRING_JOIN_DELAY(arg1, arg2) NK_STRING_JOIN_IMMEDIATE(arg1, arg2)
#define NK_STRING_JOIN(arg1, arg2) NK_STRING_JOIN_DELAY(arg1, arg2)
 
#ifdef _MSC_VER
  #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__COUNTER__)
#else
  #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__LINE__)
#endif
 
#ifndef NK_STATIC_ASSERT
  #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
#endif
 
#ifndef NK_FILE_LINE
#ifdef _MSC_VER
  #define NK_FILE_LINE __FILE__ ":" NK_MACRO_STRINGIFY(__COUNTER__)
#else
  #define NK_FILE_LINE __FILE__ ":" NK_MACRO_STRINGIFY(__LINE__)
#endif
#endif
 
#define NK_MIN(a,b) ((a) < (b) ? (a) : (b))
#define NK_MAX(a,b) ((a) < (b) ? (b) : (a))
#define NK_CLAMP(i,v,x) (NK_MAX(NK_MIN(v,x), i))
 
#ifdef NK_INCLUDE_STANDARD_VARARGS
  #include <stdarg.h>
  #if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
    #include <sal.h>
    #define NK_PRINTF_FORMAT_STRING _Printf_format_string_
  #else
    #define NK_PRINTF_FORMAT_STRING
  #endif
  #if defined(__GNUC__)
    #define NK_PRINTF_VARARG_FUNC(fmtargnumber) __attribute__((format(__printf__, fmtargnumber, fmtargnumber+1)))
    #define NK_PRINTF_VALIST_FUNC(fmtargnumber) __attribute__((format(__printf__, fmtargnumber, 0)))
  #else
    #define NK_PRINTF_VARARG_FUNC(fmtargnumber)
    #define NK_PRINTF_VALIST_FUNC(fmtargnumber)
  #endif
#endif
 
/*
 * ===============================================================
 *
 *                          BASIC
 *
 * ===============================================================
 */
 #ifdef NK_INCLUDE_FIXED_TYPES
 #include <stdint.h>
 #define NK_INT8 int8_t
 #define NK_UINT8 uint8_t
 #define NK_INT16 int16_t
 #define NK_UINT16 uint16_t
 #define NK_INT32 int32_t
 #define NK_UINT32 uint32_t
 #define NK_SIZE_TYPE uintptr_t
 #define NK_POINTER_TYPE uintptr_t
#else
  #ifndef NK_INT8
    #define NK_INT8 signed char
  #endif
  #ifndef NK_UINT8
    #define NK_UINT8 unsigned char
  #endif
  #ifndef NK_INT16
    #define NK_INT16 signed short
  #endif
  #ifndef NK_UINT16
    #define NK_UINT16 unsigned short
  #endif
  #ifndef NK_INT32
    #if defined(_MSC_VER)
      #define NK_INT32 __int32
    #else
      #define NK_INT32 signed int
    #endif
  #endif
  #ifndef NK_UINT32
    #if defined(_MSC_VER)
      #define NK_UINT32 unsigned __int32
    #else
      #define NK_UINT32 unsigned int
    #endif
  #endif
  #ifndef NK_SIZE_TYPE
    #if defined(_WIN64) && defined(_MSC_VER)
      #define NK_SIZE_TYPE unsigned __int64
    #elif defined(_WIN64) && (defined(__MINGW64__) || defined(__clang__))
      #define NK_SIZE_TYPE unsigned long long
    #elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
      #define NK_SIZE_TYPE unsigned __int32
    #elif (defined(_WIN32) || defined(WIN32)) && (defined(__MINGW32__) || defined(__clang__))
      #define NK_SIZE_TYPE unsigned long
    #elif defined(__GNUC__) || defined(__clang__)
      #if defined(__x86_64__) || defined(__ppc64__) || defined(__PPC64__) || defined(__aarch64__)
        #define NK_SIZE_TYPE unsigned long
      #else
        #define NK_SIZE_TYPE unsigned int
      #endif
    #else
      #define NK_SIZE_TYPE unsigned long
    #endif
  #endif
  #ifndef NK_POINTER_TYPE
    #if defined(_WIN64) && defined(_MSC_VER)
      #define NK_POINTER_TYPE unsigned __int64
    #elif defined(_WIN64) && (defined(__MINGW64__) || defined(__clang__))
      #define NK_POINTER_TYPE unsigned long long
    #elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
      #define NK_POINTER_TYPE unsigned __int32
    #elif (defined(_WIN32) || defined(WIN32)) && (defined(__MINGW32__) || defined(__clang__))
      #define NK_POINTER_TYPE unsigned long
    #elif defined(__GNUC__) || defined(__clang__)
      #if defined(__x86_64__) || defined(__ppc64__) || defined(__PPC64__) || defined(__aarch64__)
        #define NK_POINTER_TYPE unsigned long
      #else
        #define NK_POINTER_TYPE unsigned int
      #endif
    #else
      #define NK_POINTER_TYPE unsigned long
    #endif
  #endif
#endif
 
#ifndef NK_BOOL
  #ifdef NK_INCLUDE_STANDARD_BOOL
    #include <stdbool.h>
    #define NK_BOOL bool
  #else
    #define NK_BOOL int
  #endif
#endif
 
typedef NK_INT8 nk_char;
typedef NK_UINT8 nk_uchar;
typedef NK_UINT8 nk_byte;
typedef NK_INT16 nk_short;
typedef NK_UINT16 nk_ushort;
typedef NK_INT32 nk_int;
typedef NK_UINT32 nk_uint;
typedef NK_SIZE_TYPE nk_size;
typedef NK_POINTER_TYPE nk_ptr;
typedef NK_BOOL nk_bool;
 
typedef nk_uint nk_hash;
typedef nk_uint nk_flags;
typedef nk_uint nk_rune;
 
/* Make sure correct type size:
 * This will fire with a negative subscript error if the type sizes
 * are set incorrectly by the compiler, and compile out if not */
NK_STATIC_ASSERT(sizeof(nk_short) == 2);
NK_STATIC_ASSERT(sizeof(nk_ushort) == 2);
NK_STATIC_ASSERT(sizeof(nk_uint) == 4);
NK_STATIC_ASSERT(sizeof(nk_int) == 4);
NK_STATIC_ASSERT(sizeof(nk_byte) == 1);
NK_STATIC_ASSERT(sizeof(nk_flags) >= 4);
NK_STATIC_ASSERT(sizeof(nk_rune) >= 4);
NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));
NK_STATIC_ASSERT(sizeof(nk_bool) <= sizeof(int));
 
/* ============================================================================
 *
 *                                  API
 *
 * =========================================================================== */
struct nk_buffer;
struct nk_allocator;
struct nk_command_buffer;
struct nk_draw_command;
struct nk_convert_config;
struct nk_style_item;
struct nk_text_edit;
struct nk_draw_list;
struct nk_user_font;
struct nk_panel;
struct nk_context;
struct nk_draw_vertex_layout_element;
struct nk_style_button;
struct nk_style_toggle;
struct nk_style_selectable;
struct nk_style_slide;
struct nk_style_progress;
struct nk_style_scrollbar;
struct nk_style_edit;
struct nk_style_property;
struct nk_style_chart;
struct nk_style_combo;
struct nk_style_tab;
struct nk_style_window_header;
struct nk_style_window;
 
enum {nk_false, nk_true};
struct nk_color {nk_byte r,g,b,a;};
struct nk_colorf {float r,g,b,a;};
struct nk_vec2 {float x,y;};
struct nk_vec2i {short x, y;};
struct nk_rect {float x,y,w,h;};
struct nk_recti {short x,y,w,h;};
typedef char nk_glyph[NK_UTF_SIZE];
typedef union {void *ptr; int id;} nk_handle;
struct nk_image {nk_handle handle; nk_ushort w, h; nk_ushort region[4];};
struct nk_nine_slice {struct nk_image img; nk_ushort l, t, r, b;};
struct nk_cursor {struct nk_image img; struct nk_vec2 size, offset;};
struct nk_scroll {nk_uint x, y;};
 
/* Make sure the semantic of nk_true/nk_false is compatible with nk_bool */
NK_STATIC_ASSERT(!((nk_bool)0) == !(nk_false));
NK_STATIC_ASSERT(!((nk_bool)1) == !(nk_true));
 
enum nk_heading         {NK_UP, NK_RIGHT, NK_DOWN, NK_LEFT};
enum nk_button_behavior {NK_BUTTON_DEFAULT, NK_BUTTON_REPEATER};
enum nk_modify          {NK_FIXED = nk_false, NK_MODIFIABLE = nk_true};
enum nk_orientation     {NK_VERTICAL, NK_HORIZONTAL};
enum nk_collapse_states {NK_MINIMIZED = nk_false, NK_MAXIMIZED = nk_true};
enum nk_show_states     {NK_HIDDEN = nk_false, NK_SHOWN = nk_true};
enum nk_chart_type      {NK_CHART_LINES, NK_CHART_COLUMN, NK_CHART_MAX};
enum nk_chart_event     {NK_CHART_HOVERING = 0x01, NK_CHART_CLICKED = 0x02};
enum nk_color_format    {NK_RGB, NK_RGBA};
enum nk_popup_type      {NK_POPUP_STATIC, NK_POPUP_DYNAMIC};
enum nk_layout_format   {NK_DYNAMIC, NK_STATIC};
enum nk_tree_type       {NK_TREE_NODE, NK_TREE_TAB};
 
typedef void*(*nk_plugin_alloc)(nk_handle, void *old, nk_size);
typedef void (*nk_plugin_free)(nk_handle, void *old);
typedef nk_bool(*nk_plugin_filter)(const struct nk_text_edit*, nk_rune unicode);
typedef void(*nk_plugin_paste)(nk_handle, struct nk_text_edit*);
typedef void(*nk_plugin_copy)(nk_handle, const char*, int len);
 
struct nk_allocator {
    nk_handle userdata;
    nk_plugin_alloc alloc;
    nk_plugin_free free;
};
enum nk_symbol_type {
    NK_SYMBOL_NONE,
    NK_SYMBOL_X,
    NK_SYMBOL_UNDERSCORE,
    NK_SYMBOL_CIRCLE_SOLID,
    NK_SYMBOL_CIRCLE_OUTLINE,
    NK_SYMBOL_RECT_SOLID,
    NK_SYMBOL_RECT_OUTLINE,
    NK_SYMBOL_TRIANGLE_UP,
    NK_SYMBOL_TRIANGLE_DOWN,
    NK_SYMBOL_TRIANGLE_LEFT,
    NK_SYMBOL_TRIANGLE_RIGHT,
    NK_SYMBOL_PLUS,
    NK_SYMBOL_MINUS,
    NK_SYMBOL_TRIANGLE_UP_OUTLINE,
    NK_SYMBOL_TRIANGLE_DOWN_OUTLINE,
    NK_SYMBOL_TRIANGLE_LEFT_OUTLINE,
    NK_SYMBOL_TRIANGLE_RIGHT_OUTLINE,
    NK_SYMBOL_MAX
};
/* =============================================================================
 *
 *                                  CONTEXT
 *
 * =============================================================================*/
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
 
NK_API nk_bool nk_init_default(struct nk_context*, const struct nk_user_font*);
#endif
NK_API nk_bool nk_init_fixed(struct nk_context*, void *memory, nk_size size, const struct nk_user_font*);
 
NK_API nk_bool nk_init(struct nk_context*, const struct nk_allocator*, const struct nk_user_font*);
 
NK_API nk_bool nk_init_custom(struct nk_context*, struct nk_buffer *cmds, struct nk_buffer *pool, const struct nk_user_font*);
 
NK_API void nk_clear(struct nk_context*);
 
NK_API void nk_free(struct nk_context*);
 
#ifdef NK_INCLUDE_COMMAND_USERDATA
NK_API void nk_set_user_data(struct nk_context*, nk_handle handle);
#endif
/* =============================================================================
 *
 *                                  INPUT
 *
 * =============================================================================*/
enum nk_keys {
    NK_KEY_NONE,
    NK_KEY_SHIFT,
    NK_KEY_CTRL,
    NK_KEY_DEL,
    NK_KEY_ENTER,
    NK_KEY_TAB,
    NK_KEY_BACKSPACE,
    NK_KEY_COPY,
    NK_KEY_CUT,
    NK_KEY_PASTE,
    NK_KEY_UP,
    NK_KEY_DOWN,
    NK_KEY_LEFT,
    NK_KEY_RIGHT,
    /* Shortcuts: text field */
    NK_KEY_TEXT_INSERT_MODE,
    NK_KEY_TEXT_REPLACE_MODE,
    NK_KEY_TEXT_RESET_MODE,
    NK_KEY_TEXT_LINE_START,
    NK_KEY_TEXT_LINE_END,
    NK_KEY_TEXT_START,
    NK_KEY_TEXT_END,
    NK_KEY_TEXT_UNDO,
    NK_KEY_TEXT_REDO,
    NK_KEY_TEXT_SELECT_ALL,
    NK_KEY_TEXT_WORD_LEFT,
    NK_KEY_TEXT_WORD_RIGHT,
    /* Shortcuts: scrollbar */
    NK_KEY_SCROLL_START,
    NK_KEY_SCROLL_END,
    NK_KEY_SCROLL_DOWN,
    NK_KEY_SCROLL_UP,
    NK_KEY_MAX
};
enum nk_buttons {
    NK_BUTTON_LEFT,
    NK_BUTTON_MIDDLE,
    NK_BUTTON_RIGHT,
    NK_BUTTON_DOUBLE,
    NK_BUTTON_MAX
};
 
NK_API void nk_input_begin(struct nk_context*);
 
NK_API void nk_input_motion(struct nk_context*, int x, int y);
 
NK_API void nk_input_key(struct nk_context*, enum nk_keys, nk_bool down);
 
NK_API void nk_input_button(struct nk_context*, enum nk_buttons, int x, int y, nk_bool down);
 
NK_API void nk_input_scroll(struct nk_context*, struct nk_vec2 val);
 
NK_API void nk_input_char(struct nk_context*, char);
 
NK_API void nk_input_glyph(struct nk_context*, const nk_glyph);
 
NK_API void nk_input_unicode(struct nk_context*, nk_rune);
 
NK_API void nk_input_end(struct nk_context*);
 
/* =============================================================================
 *
 *                                  DRAWING
 *
 * =============================================================================*/
enum nk_anti_aliasing {NK_ANTI_ALIASING_OFF, NK_ANTI_ALIASING_ON};
enum nk_convert_result {
    NK_CONVERT_SUCCESS = 0,
    NK_CONVERT_INVALID_PARAM = 1,
    NK_CONVERT_COMMAND_BUFFER_FULL = NK_FLAG(1),
    NK_CONVERT_VERTEX_BUFFER_FULL = NK_FLAG(2),
    NK_CONVERT_ELEMENT_BUFFER_FULL = NK_FLAG(3)
};
struct nk_draw_null_texture {
    nk_handle texture; 
    struct nk_vec2 uv; 
};
struct nk_convert_config {
    float global_alpha;             
    enum nk_anti_aliasing line_AA;  
    enum nk_anti_aliasing shape_AA; 
    unsigned circle_segment_count;  
    unsigned arc_segment_count;     
    unsigned curve_segment_count;   
    struct nk_draw_null_texture tex_null; 
    const struct nk_draw_vertex_layout_element *vertex_layout; 
    nk_size vertex_size;      
    nk_size vertex_alignment; 
};
 
NK_API const struct nk_command* nk__begin(struct nk_context*);
 
NK_API const struct nk_command* nk__next(struct nk_context*, const struct nk_command*);
 
#define nk_foreach(c, ctx) for((c) = nk__begin(ctx); (c) != 0; (c) = nk__next(ctx,c))
 
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
 
NK_API nk_flags nk_convert(struct nk_context*, struct nk_buffer *cmds, struct nk_buffer *vertices, struct nk_buffer *elements, const struct nk_convert_config*);
 
NK_API const struct nk_draw_command* nk__draw_begin(const struct nk_context*, const struct nk_buffer*);
 
NK_API const struct nk_draw_command* nk__draw_end(const struct nk_context*, const struct nk_buffer*);
 
NK_API const struct nk_draw_command* nk__draw_next(const struct nk_draw_command*, const struct nk_buffer*, const struct nk_context*);
 
#define nk_draw_foreach(cmd,ctx, b) for((cmd)=nk__draw_begin(ctx, b); (cmd)!=0; (cmd)=nk__draw_next(cmd, b, ctx))
#endif
 
/* =============================================================================
 *
 *                                  WINDOW
 *
 * =============================================================================*/
enum nk_panel_flags {
    NK_WINDOW_BORDER            = NK_FLAG(0),
    NK_WINDOW_MOVABLE           = NK_FLAG(1),
    NK_WINDOW_SCALABLE          = NK_FLAG(2),
    NK_WINDOW_CLOSABLE          = NK_FLAG(3),
    NK_WINDOW_MINIMIZABLE       = NK_FLAG(4),
    NK_WINDOW_NO_SCROLLBAR      = NK_FLAG(5),
    NK_WINDOW_TITLE             = NK_FLAG(6),
    NK_WINDOW_SCROLL_AUTO_HIDE  = NK_FLAG(7),
    NK_WINDOW_BACKGROUND        = NK_FLAG(8),
    NK_WINDOW_SCALE_LEFT        = NK_FLAG(9),
    NK_WINDOW_NO_INPUT          = NK_FLAG(10)
};
 
NK_API nk_bool nk_begin(struct nk_context *ctx, const char *title, struct nk_rect bounds, nk_flags flags);
 
NK_API nk_bool nk_begin_titled(struct nk_context *ctx, const char *name, const char *title, struct nk_rect bounds, nk_flags flags);
 
NK_API void nk_end(struct nk_context *ctx);
 
NK_API struct nk_window *nk_window_find(const struct nk_context *ctx, const char *name);
 
NK_API struct nk_rect nk_window_get_bounds(const struct nk_context *ctx);
 
NK_API struct nk_vec2 nk_window_get_position(const struct nk_context *ctx);
 
NK_API struct nk_vec2 nk_window_get_size(const struct nk_context *ctx);
 
NK_API float nk_window_get_width(const struct nk_context *ctx);
 
NK_API float nk_window_get_height(const struct nk_context* ctx);
 
NK_API struct nk_panel* nk_window_get_panel(const struct nk_context* ctx);
 
NK_API struct nk_rect nk_window_get_content_region(const struct nk_context* ctx);
 
NK_API struct nk_vec2 nk_window_get_content_region_min(const struct nk_context *ctx);
 
NK_API struct nk_vec2 nk_window_get_content_region_max(const struct nk_context *ctx);
 
NK_API struct nk_vec2 nk_window_get_content_region_size(const struct nk_context *ctx);
 
NK_API struct nk_command_buffer* nk_window_get_canvas(const struct nk_context* ctx);
 
NK_API void nk_window_get_scroll(const struct nk_context *ctx, nk_uint *offset_x, nk_uint *offset_y);
 
NK_API nk_bool nk_window_has_focus(const struct nk_context *ctx);
 
NK_API nk_bool nk_window_is_hovered(const struct nk_context *ctx);
 
NK_API nk_bool nk_window_is_collapsed(const struct nk_context *ctx, const char *name);
 
NK_API nk_bool nk_window_is_closed(const struct nk_context *ctx, const char* name);
 
NK_API nk_bool nk_window_is_hidden(const struct nk_context *ctx, const char* name);
 
NK_API nk_bool nk_window_is_active(const struct nk_context *ctx, const char* name);
 
NK_API nk_bool nk_window_is_any_hovered(const struct nk_context *ctx);
 
NK_API nk_bool nk_item_is_any_active(const struct nk_context *ctx);
 
NK_API void nk_window_set_bounds(struct nk_context *ctx, const char *name, struct nk_rect bounds);
 
NK_API void nk_window_set_position(struct nk_context *ctx, const char *name, struct nk_vec2 pos);
 
NK_API void nk_window_set_size(struct nk_context *ctx, const char *name, struct nk_vec2 size);
 
NK_API void nk_window_set_focus(struct nk_context *ctx, const char *name);
 
NK_API void nk_window_set_scroll(struct nk_context *ctx, nk_uint offset_x, nk_uint offset_y);
 
NK_API void nk_window_close(struct nk_context *ctx, const char *name);
 
NK_API void nk_window_collapse(struct nk_context *ctx, const char *name, enum nk_collapse_states state);
 
NK_API void nk_window_collapse_if(struct nk_context *ctx, const char *name, enum nk_collapse_states state, int cond);
 
NK_API void nk_window_show(struct nk_context *ctx, const char *name, enum nk_show_states state);
 
NK_API void nk_window_show_if(struct nk_context *ctx, const char *name, enum nk_show_states state, int cond);
 
NK_API void nk_rule_horizontal(struct nk_context *ctx, struct nk_color color, nk_bool rounding);
 
/* =============================================================================
 *
 *                                  LAYOUT
 *
 * =============================================================================*/
enum nk_widget_align {
    NK_WIDGET_ALIGN_LEFT        = 0x01,
    NK_WIDGET_ALIGN_CENTERED    = 0x02,
    NK_WIDGET_ALIGN_RIGHT       = 0x04,
    NK_WIDGET_ALIGN_TOP         = 0x08,
    NK_WIDGET_ALIGN_MIDDLE      = 0x10,
    NK_WIDGET_ALIGN_BOTTOM      = 0x20
};
enum nk_widget_alignment {
    NK_WIDGET_LEFT        = NK_WIDGET_ALIGN_MIDDLE|NK_WIDGET_ALIGN_LEFT,
    NK_WIDGET_CENTERED    = NK_WIDGET_ALIGN_MIDDLE|NK_WIDGET_ALIGN_CENTERED,
    NK_WIDGET_RIGHT       = NK_WIDGET_ALIGN_MIDDLE|NK_WIDGET_ALIGN_RIGHT
};
 
NK_API void nk_layout_set_min_row_height(struct nk_context*, float height);
 
NK_API void nk_layout_reset_min_row_height(struct nk_context*);
 
NK_API struct nk_rect nk_layout_widget_bounds(const struct nk_context *ctx);
 
NK_API float nk_layout_ratio_from_pixel(const struct nk_context *ctx, float pixel_width);
 
NK_API void nk_layout_row_dynamic(struct nk_context *ctx, float height, int cols);
 
NK_API void nk_layout_row_static(struct nk_context *ctx, float height, int item_width, int cols);
 
NK_API void nk_layout_row_begin(struct nk_context *ctx, enum nk_layout_format fmt, float row_height, int cols);
 
NK_API void nk_layout_row_push(struct nk_context*, float value);
 
NK_API void nk_layout_row_end(struct nk_context*);
 
NK_API void nk_layout_row(struct nk_context*, enum nk_layout_format, float height, int cols, const float *ratio);
 
NK_API void nk_layout_row_template_begin(struct nk_context*, float row_height);
 
NK_API void nk_layout_row_template_push_dynamic(struct nk_context*);
 
NK_API void nk_layout_row_template_push_variable(struct nk_context*, float min_width);
 
NK_API void nk_layout_row_template_push_static(struct nk_context*, float width);
 
NK_API void nk_layout_row_template_end(struct nk_context*);
 
NK_API void nk_layout_space_begin(struct nk_context*, enum nk_layout_format, float height, int widget_count);
 
NK_API void nk_layout_space_push(struct nk_context*, struct nk_rect bounds);
 
NK_API void nk_layout_space_end(struct nk_context*);
 
NK_API struct nk_rect nk_layout_space_bounds(const struct nk_context *ctx);
 
NK_API struct nk_vec2 nk_layout_space_to_screen(const struct nk_context* ctx, struct nk_vec2 vec);
 
NK_API struct nk_vec2 nk_layout_space_to_local(const struct nk_context *ctx, struct nk_vec2 vec);
 
NK_API struct nk_rect nk_layout_space_rect_to_screen(const struct nk_context *ctx, struct nk_rect bounds);
 
NK_API struct nk_rect nk_layout_space_rect_to_local(const struct nk_context *ctx, struct nk_rect bounds);
 
NK_API void nk_spacer(struct nk_context *ctx);
 
 
/* =============================================================================
 *
 *                                  GROUP
 *
 * =============================================================================*/
NK_API nk_bool nk_group_begin(struct nk_context*, const char *title, nk_flags);
 
NK_API nk_bool nk_group_begin_titled(struct nk_context*, const char *name, const char *title, nk_flags);
 
NK_API void nk_group_end(struct nk_context*);
 
NK_API nk_bool nk_group_scrolled_offset_begin(struct nk_context*, nk_uint *x_offset, nk_uint *y_offset, const char *title, nk_flags flags);
 
NK_API nk_bool nk_group_scrolled_begin(struct nk_context*, struct nk_scroll *off, const char *title, nk_flags);
 
NK_API void nk_group_scrolled_end(struct nk_context*);
 
NK_API void nk_group_get_scroll(struct nk_context*, const char *id, nk_uint *x_offset, nk_uint *y_offset);
 
NK_API void nk_group_set_scroll(struct nk_context*, const char *id, nk_uint x_offset, nk_uint y_offset);
 
/* =============================================================================
 *
 *                                  TREE
 *
 * =============================================================================*/
#define nk_tree_push(ctx, type, title, state) nk_tree_push_hashed(ctx, type, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
 
#define nk_tree_push_id(ctx, type, title, state, id) nk_tree_push_hashed(ctx, type, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
 
NK_API nk_bool nk_tree_push_hashed(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
 
#define nk_tree_image_push(ctx, type, img, title, state) nk_tree_image_push_hashed(ctx, type, img, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
 
#define nk_tree_image_push_id(ctx, type, img, title, state, id) nk_tree_image_push_hashed(ctx, type, img, title, state, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
 
NK_API nk_bool nk_tree_image_push_hashed(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states initial_state, const char *hash, int len,int seed);
 
NK_API void nk_tree_pop(struct nk_context*);
 
NK_API nk_bool nk_tree_state_push(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states *state);
 
NK_API nk_bool nk_tree_state_image_push(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states *state);
 
NK_API void nk_tree_state_pop(struct nk_context*);
 
#define nk_tree_element_push(ctx, type, title, state, sel) nk_tree_element_push_hashed(ctx, type, title, state, sel, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),__LINE__)
#define nk_tree_element_push_id(ctx, type, title, state, sel, id) nk_tree_element_push_hashed(ctx, type, title, state, sel, NK_FILE_LINE,nk_strlen(NK_FILE_LINE),id)
NK_API nk_bool nk_tree_element_push_hashed(struct nk_context*, enum nk_tree_type, const char *title, enum nk_collapse_states initial_state, nk_bool *selected, const char *hash, int len, int seed);
NK_API nk_bool nk_tree_element_image_push_hashed(struct nk_context*, enum nk_tree_type, struct nk_image, const char *title, enum nk_collapse_states initial_state, nk_bool *selected, const char *hash, int len,int seed);
NK_API void nk_tree_element_pop(struct nk_context*);
 
/* =============================================================================
 *
 *                                  LIST VIEW
 *
 * ============================================================================= */
struct nk_list_view {
/* public: */
    int begin, end, count;
/* private: */
    int total_height;
    struct nk_context *ctx;
    nk_uint *scroll_pointer;
    nk_uint scroll_value;
};
NK_API nk_bool nk_list_view_begin(struct nk_context*, struct nk_list_view *out, const char *id, nk_flags, int row_height, int row_count);
NK_API void nk_list_view_end(struct nk_list_view*);
/* =============================================================================
 *
 *                                  WIDGET
 *
 * ============================================================================= */
enum nk_widget_layout_states {
    NK_WIDGET_INVALID, 
    NK_WIDGET_VALID,   
    NK_WIDGET_ROM,     
    NK_WIDGET_DISABLED 
};
enum nk_widget_states {
    NK_WIDGET_STATE_MODIFIED    = NK_FLAG(1),
    NK_WIDGET_STATE_INACTIVE    = NK_FLAG(2), 
    NK_WIDGET_STATE_ENTERED     = NK_FLAG(3), 
    NK_WIDGET_STATE_HOVER       = NK_FLAG(4), 
    NK_WIDGET_STATE_ACTIVED     = NK_FLAG(5),
    NK_WIDGET_STATE_LEFT        = NK_FLAG(6), 
    NK_WIDGET_STATE_HOVERED     = NK_WIDGET_STATE_HOVER|NK_WIDGET_STATE_MODIFIED, 
    NK_WIDGET_STATE_ACTIVE      = NK_WIDGET_STATE_ACTIVED|NK_WIDGET_STATE_MODIFIED 
};
NK_API enum nk_widget_layout_states nk_widget(struct nk_rect*, const struct nk_context*);
NK_API enum nk_widget_layout_states nk_widget_fitting(struct nk_rect*, const struct nk_context*, struct nk_vec2);
NK_API struct nk_rect nk_widget_bounds(const struct nk_context*);
NK_API struct nk_vec2 nk_widget_position(const struct nk_context*);
NK_API struct nk_vec2 nk_widget_size(const struct nk_context*);
NK_API float nk_widget_width(const struct nk_context*);
NK_API float nk_widget_height(const struct nk_context*);
NK_API nk_bool nk_widget_is_hovered(const struct nk_context*);
NK_API nk_bool nk_widget_is_mouse_clicked(const struct nk_context*, enum nk_buttons);
NK_API nk_bool nk_widget_has_mouse_click_down(const struct nk_context*, enum nk_buttons, nk_bool down);
NK_API void nk_spacing(struct nk_context*, int cols);
NK_API void nk_widget_disable_begin(struct nk_context* ctx);
NK_API void nk_widget_disable_end(struct nk_context* ctx);
/* =============================================================================
 *
 *                                  TEXT
 *
 * ============================================================================= */
enum nk_text_align {
    NK_TEXT_ALIGN_LEFT        = 0x01,
    NK_TEXT_ALIGN_CENTERED    = 0x02,
    NK_TEXT_ALIGN_RIGHT       = 0x04,
    NK_TEXT_ALIGN_TOP         = 0x08,
    NK_TEXT_ALIGN_MIDDLE      = 0x10,
    NK_TEXT_ALIGN_BOTTOM      = 0x20
};
enum nk_text_alignment {
    NK_TEXT_LEFT        = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_LEFT,
    NK_TEXT_CENTERED    = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_CENTERED,
    NK_TEXT_RIGHT       = NK_TEXT_ALIGN_MIDDLE|NK_TEXT_ALIGN_RIGHT
};
NK_API void nk_text(struct nk_context*, const char*, int, nk_flags);
NK_API void nk_text_colored(struct nk_context*, const char*, int, nk_flags, struct nk_color);
NK_API void nk_text_wrap(struct nk_context*, const char*, int);
NK_API void nk_text_wrap_colored(struct nk_context*, const char*, int, struct nk_color);
NK_API void nk_label(struct nk_context*, const char*, nk_flags align);
NK_API void nk_label_colored(struct nk_context*, const char*, nk_flags align, struct nk_color);
NK_API void nk_label_wrap(struct nk_context*, const char*);
NK_API void nk_label_colored_wrap(struct nk_context*, const char*, struct nk_color);
NK_API void nk_image(struct nk_context*, struct nk_image);
NK_API void nk_image_color(struct nk_context*, struct nk_image, struct nk_color);
#ifdef NK_INCLUDE_STANDARD_VARARGS
NK_API void nk_labelf(struct nk_context*, nk_flags, NK_PRINTF_FORMAT_STRING const char*, ...) NK_PRINTF_VARARG_FUNC(3);
NK_API void nk_labelf_colored(struct nk_context*, nk_flags, struct nk_color, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(4);
NK_API void nk_labelf_wrap(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(2);
NK_API void nk_labelf_colored_wrap(struct nk_context*, struct nk_color, NK_PRINTF_FORMAT_STRING const char*,...) NK_PRINTF_VARARG_FUNC(3);
NK_API void nk_labelfv(struct nk_context*, nk_flags, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(3);
NK_API void nk_labelfv_colored(struct nk_context*, nk_flags, struct nk_color, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(4);
NK_API void nk_labelfv_wrap(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(2);
NK_API void nk_labelfv_colored_wrap(struct nk_context*, struct nk_color, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(3);
NK_API void nk_value_bool(struct nk_context*, const char *prefix, int);
NK_API void nk_value_int(struct nk_context*, const char *prefix, int);
NK_API void nk_value_uint(struct nk_context*, const char *prefix, unsigned int);
NK_API void nk_value_float(struct nk_context*, const char *prefix, float);
NK_API void nk_value_color_byte(struct nk_context*, const char *prefix, struct nk_color);
NK_API void nk_value_color_float(struct nk_context*, const char *prefix, struct nk_color);
NK_API void nk_value_color_hex(struct nk_context*, const char *prefix, struct nk_color);
#endif
/* =============================================================================
 *
 *                                  BUTTON
 *
 * ============================================================================= */
NK_API nk_bool nk_button_text(struct nk_context*, const char *title, int len);
NK_API nk_bool nk_button_label(struct nk_context*, const char *title);
NK_API nk_bool nk_button_color(struct nk_context*, struct nk_color);
NK_API nk_bool nk_button_symbol(struct nk_context*, enum nk_symbol_type);
NK_API nk_bool nk_button_image(struct nk_context*, struct nk_image img);
NK_API nk_bool nk_button_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags text_alignment);
NK_API nk_bool nk_button_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
NK_API nk_bool nk_button_image_label(struct nk_context*, struct nk_image img, const char*, nk_flags text_alignment);
NK_API nk_bool nk_button_image_text(struct nk_context*, struct nk_image img, const char*, int, nk_flags alignment);
NK_API nk_bool nk_button_text_styled(struct nk_context*, const struct nk_style_button*, const char *title, int len);
NK_API nk_bool nk_button_label_styled(struct nk_context*, const struct nk_style_button*, const char *title);
NK_API nk_bool nk_button_symbol_styled(struct nk_context*, const struct nk_style_button*, enum nk_symbol_type);
NK_API nk_bool nk_button_image_styled(struct nk_context*, const struct nk_style_button*, struct nk_image img);
NK_API nk_bool nk_button_symbol_text_styled(struct nk_context*,const struct nk_style_button*, enum nk_symbol_type, const char*, int, nk_flags alignment);
NK_API nk_bool nk_button_symbol_label_styled(struct nk_context *ctx, const struct nk_style_button *style, enum nk_symbol_type symbol, const char *title, nk_flags align);
NK_API nk_bool nk_button_image_label_styled(struct nk_context*,const struct nk_style_button*, struct nk_image img, const char*, nk_flags text_alignment);
NK_API nk_bool nk_button_image_text_styled(struct nk_context*,const struct nk_style_button*, struct nk_image img, const char*, int, nk_flags alignment);
NK_API void nk_button_set_behavior(struct nk_context*, enum nk_button_behavior);
NK_API nk_bool nk_button_push_behavior(struct nk_context*, enum nk_button_behavior);
NK_API nk_bool nk_button_pop_behavior(struct nk_context*);
/* =============================================================================
 *
 *                                  CHECKBOX
 *
 * ============================================================================= */
NK_API nk_bool nk_check_label(struct nk_context*, const char*, nk_bool active);
NK_API nk_bool nk_check_text(struct nk_context*, const char*, int, nk_bool active);
NK_API nk_bool nk_check_text_align(struct nk_context*, const char*, int, nk_bool active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API unsigned nk_check_flags_label(struct nk_context*, const char*, unsigned int flags, unsigned int value);
NK_API unsigned nk_check_flags_text(struct nk_context*, const char*, int, unsigned int flags, unsigned int value);
NK_API nk_bool nk_checkbox_label(struct nk_context*, const char*, nk_bool *active);
NK_API nk_bool nk_checkbox_label_align(struct nk_context *ctx, const char *label, nk_bool *active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API nk_bool nk_checkbox_text(struct nk_context*, const char*, int, nk_bool *active);
NK_API nk_bool nk_checkbox_text_align(struct nk_context *ctx, const char *text, int len, nk_bool *active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API nk_bool nk_checkbox_flags_label(struct nk_context*, const char*, unsigned int *flags, unsigned int value);
NK_API nk_bool nk_checkbox_flags_text(struct nk_context*, const char*, int, unsigned int *flags, unsigned int value);
/* =============================================================================
 *
 *                                  RADIO BUTTON
 *
 * ============================================================================= */
NK_API nk_bool nk_radio_label(struct nk_context*, const char*, nk_bool *active);
NK_API nk_bool nk_radio_label_align(struct nk_context *ctx, const char *label, nk_bool *active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API nk_bool nk_radio_text(struct nk_context*, const char*, int, nk_bool *active);
NK_API nk_bool nk_radio_text_align(struct nk_context *ctx, const char *text, int len, nk_bool *active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API nk_bool nk_option_label(struct nk_context*, const char*, nk_bool active);
NK_API nk_bool nk_option_label_align(struct nk_context *ctx, const char *label, nk_bool active, nk_flags widget_alignment, nk_flags text_alignment);
NK_API nk_bool nk_option_text(struct nk_context*, const char*, int, nk_bool active);
NK_API nk_bool nk_option_text_align(struct nk_context *ctx, const char *text, int len, nk_bool is_active, nk_flags widget_alignment, nk_flags text_alignment);
/* =============================================================================
 *
 *                                  SELECTABLE
 *
 * ============================================================================= */
NK_API nk_bool nk_selectable_label(struct nk_context*, const char*, nk_flags align, nk_bool *value);
NK_API nk_bool nk_selectable_text(struct nk_context*, const char*, int, nk_flags align, nk_bool *value);
NK_API nk_bool nk_selectable_image_label(struct nk_context*,struct nk_image,  const char*, nk_flags align, nk_bool *value);
NK_API nk_bool nk_selectable_image_text(struct nk_context*,struct nk_image, const char*, int, nk_flags align, nk_bool *value);
NK_API nk_bool nk_selectable_symbol_label(struct nk_context*,enum nk_symbol_type,  const char*, nk_flags align, nk_bool *value);
NK_API nk_bool nk_selectable_symbol_text(struct nk_context*,enum nk_symbol_type, const char*, int, nk_flags align, nk_bool *value);
 
NK_API nk_bool nk_select_label(struct nk_context*, const char*, nk_flags align, nk_bool value);
NK_API nk_bool nk_select_text(struct nk_context*, const char*, int, nk_flags align, nk_bool value);
NK_API nk_bool nk_select_image_label(struct nk_context*, struct nk_image,const char*, nk_flags align, nk_bool value);
NK_API nk_bool nk_select_image_text(struct nk_context*, struct nk_image,const char*, int, nk_flags align, nk_bool value);
NK_API nk_bool nk_select_symbol_label(struct nk_context*,enum nk_symbol_type,  const char*, nk_flags align, nk_bool value);
NK_API nk_bool nk_select_symbol_text(struct nk_context*,enum nk_symbol_type, const char*, int, nk_flags align, nk_bool value);
 
/* =============================================================================
 *
 *                                  SLIDER
 *
 * ============================================================================= */
NK_API float nk_slide_float(struct nk_context*, float min, float val, float max, float step);
NK_API int nk_slide_int(struct nk_context*, int min, int val, int max, int step);
NK_API nk_bool nk_slider_float(struct nk_context*, float min, float *val, float max, float step);
NK_API nk_bool nk_slider_int(struct nk_context*, int min, int *val, int max, int step);
 
/* =============================================================================
 *
 *                                   KNOB
 *
 * ============================================================================= */
NK_API nk_bool nk_knob_float(struct nk_context*, float min, float *val, float max, float step, enum nk_heading zero_direction, float dead_zone_degrees);
NK_API nk_bool nk_knob_int(struct nk_context*, int min, int *val, int max, int step, enum nk_heading zero_direction, float dead_zone_degrees);
 
/* =============================================================================
 *
 *                                  PROGRESSBAR
 *
 * ============================================================================= */
NK_API nk_bool nk_progress(struct nk_context*, nk_size *cur, nk_size max, nk_bool modifyable);
NK_API nk_size nk_prog(struct nk_context*, nk_size cur, nk_size max, nk_bool modifyable);
 
/* =============================================================================
 *
 *                                  COLOR PICKER
 *
 * ============================================================================= */
NK_API struct nk_colorf nk_color_picker(struct nk_context*, struct nk_colorf, enum nk_color_format);
NK_API nk_bool nk_color_pick(struct nk_context*, struct nk_colorf*, enum nk_color_format);
/* =============================================================================
 *
 *                                  PROPERTIES
 *
 * =============================================================================*/
NK_API void nk_property_int(struct nk_context*, const char *name, int min, int *val, int max, int step, float inc_per_pixel);
 
NK_API void nk_property_float(struct nk_context*, const char *name, float min, float *val, float max, float step, float inc_per_pixel);
 
NK_API void nk_property_double(struct nk_context*, const char *name, double min, double *val, double max, double step, float inc_per_pixel);
 
NK_API int nk_propertyi(struct nk_context*, const char *name, int min, int val, int max, int step, float inc_per_pixel);
 
NK_API float nk_propertyf(struct nk_context*, const char *name, float min, float val, float max, float step, float inc_per_pixel);
 
NK_API double nk_propertyd(struct nk_context*, const char *name, double min, double val, double max, double step, float inc_per_pixel);
 
/* =============================================================================
 *
 *                                  TEXT EDIT
 *
 * ============================================================================= */
enum nk_edit_flags {
    NK_EDIT_DEFAULT                 = 0,
    NK_EDIT_READ_ONLY               = NK_FLAG(0),
    NK_EDIT_AUTO_SELECT             = NK_FLAG(1),
    NK_EDIT_SIG_ENTER               = NK_FLAG(2),
    NK_EDIT_ALLOW_TAB               = NK_FLAG(3),
    NK_EDIT_NO_CURSOR               = NK_FLAG(4),
    NK_EDIT_SELECTABLE              = NK_FLAG(5),
    NK_EDIT_CLIPBOARD               = NK_FLAG(6),
    NK_EDIT_CTRL_ENTER_NEWLINE      = NK_FLAG(7),
    NK_EDIT_NO_HORIZONTAL_SCROLL    = NK_FLAG(8),
    NK_EDIT_ALWAYS_INSERT_MODE      = NK_FLAG(9),
    NK_EDIT_MULTILINE               = NK_FLAG(10),
    NK_EDIT_GOTO_END_ON_ACTIVATE    = NK_FLAG(11)
};
enum nk_edit_types {
    NK_EDIT_SIMPLE  = NK_EDIT_ALWAYS_INSERT_MODE,
    NK_EDIT_FIELD   = NK_EDIT_SIMPLE|NK_EDIT_SELECTABLE|NK_EDIT_CLIPBOARD,
    NK_EDIT_BOX     = NK_EDIT_ALWAYS_INSERT_MODE| NK_EDIT_SELECTABLE| NK_EDIT_MULTILINE|NK_EDIT_ALLOW_TAB|NK_EDIT_CLIPBOARD,
    NK_EDIT_EDITOR  = NK_EDIT_SELECTABLE|NK_EDIT_MULTILINE|NK_EDIT_ALLOW_TAB| NK_EDIT_CLIPBOARD
};
enum nk_edit_events {
    NK_EDIT_ACTIVE      = NK_FLAG(0), 
    NK_EDIT_INACTIVE    = NK_FLAG(1), 
    NK_EDIT_ACTIVATED   = NK_FLAG(2), 
    NK_EDIT_DEACTIVATED = NK_FLAG(3), 
    NK_EDIT_COMMITED    = NK_FLAG(4)  
};
NK_API nk_flags nk_edit_string(struct nk_context*, nk_flags, char *buffer, int *len, int max, nk_plugin_filter);
NK_API nk_flags nk_edit_string_zero_terminated(struct nk_context*, nk_flags, char *buffer, int max, nk_plugin_filter);
NK_API nk_flags nk_edit_buffer(struct nk_context*, nk_flags, struct nk_text_edit*, nk_plugin_filter);
NK_API void nk_edit_focus(struct nk_context*, nk_flags flags);
NK_API void nk_edit_unfocus(struct nk_context*);
/* =============================================================================
 *
 *                                  CHART
 *
 * ============================================================================= */
NK_API nk_bool nk_chart_begin(struct nk_context*, enum nk_chart_type, int num, float min, float max);
NK_API nk_bool nk_chart_begin_colored(struct nk_context*, enum nk_chart_type, struct nk_color, struct nk_color active, int num, float min, float max);
NK_API void nk_chart_add_slot(struct nk_context *ctx, const enum nk_chart_type, int count, float min_value, float max_value);
NK_API void nk_chart_add_slot_colored(struct nk_context *ctx, const enum nk_chart_type, struct nk_color, struct nk_color active, int count, float min_value, float max_value);
NK_API nk_flags nk_chart_push(struct nk_context*, float);
NK_API nk_flags nk_chart_push_slot(struct nk_context*, float, int);
NK_API void nk_chart_end(struct nk_context*);
NK_API void nk_plot(struct nk_context*, enum nk_chart_type, const float *values, int count, int offset);
NK_API void nk_plot_function(struct nk_context*, enum nk_chart_type, void *userdata, float(*value_getter)(void* user, int index), int count, int offset);
/* =============================================================================
 *
 *                                  POPUP
 *
 * ============================================================================= */
NK_API nk_bool nk_popup_begin(struct nk_context*, enum nk_popup_type, const char*, nk_flags, struct nk_rect bounds);
NK_API void nk_popup_close(struct nk_context*);
NK_API void nk_popup_end(struct nk_context*);
NK_API void nk_popup_get_scroll(const struct nk_context*, nk_uint *offset_x, nk_uint *offset_y);
NK_API void nk_popup_set_scroll(struct nk_context*, nk_uint offset_x, nk_uint offset_y);
/* =============================================================================
 *
 *                                  COMBOBOX
 *
 * ============================================================================= */
NK_API int nk_combo(struct nk_context*, const char *const *items, int count, int selected, int item_height, struct nk_vec2 size);
NK_API int nk_combo_separator(struct nk_context*, const char *items_separated_by_separator, int separator, int selected, int count, int item_height, struct nk_vec2 size);
NK_API int nk_combo_string(struct nk_context*, const char *items_separated_by_zeros, int selected, int count, int item_height, struct nk_vec2 size);
NK_API int nk_combo_callback(struct nk_context*, void(*item_getter)(void*, int, const char**), void *userdata, int selected, int count, int item_height, struct nk_vec2 size);
NK_API void nk_combobox(struct nk_context*, const char *const *items, int count, int *selected, int item_height, struct nk_vec2 size);
NK_API void nk_combobox_string(struct nk_context*, const char *items_separated_by_zeros, int *selected, int count, int item_height, struct nk_vec2 size);
NK_API void nk_combobox_separator(struct nk_context*, const char *items_separated_by_separator, int separator, int *selected, int count, int item_height, struct nk_vec2 size);
NK_API void nk_combobox_callback(struct nk_context*, void(*item_getter)(void*, int, const char**), void*, int *selected, int count, int item_height, struct nk_vec2 size);
/* =============================================================================
 *
 *                                  ABSTRACT COMBOBOX
 *
 * ============================================================================= */
NK_API nk_bool nk_combo_begin_text(struct nk_context*, const char *selected, int, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_label(struct nk_context*, const char *selected, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_color(struct nk_context*, struct nk_color color, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_symbol(struct nk_context*,  enum nk_symbol_type,  struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_symbol_label(struct nk_context*, const char *selected, enum nk_symbol_type, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_symbol_text(struct nk_context*, const char *selected, int, enum nk_symbol_type, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_image(struct nk_context*, struct nk_image img,  struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_image_label(struct nk_context*, const char *selected, struct nk_image, struct nk_vec2 size);
NK_API nk_bool nk_combo_begin_image_text(struct nk_context*,  const char *selected, int, struct nk_image, struct nk_vec2 size);
NK_API nk_bool nk_combo_item_label(struct nk_context*, const char*, nk_flags alignment);
NK_API nk_bool nk_combo_item_text(struct nk_context*, const char*,int, nk_flags alignment);
NK_API nk_bool nk_combo_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
NK_API nk_bool nk_combo_item_image_text(struct nk_context*, struct nk_image, const char*, int,nk_flags alignment);
NK_API nk_bool nk_combo_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
NK_API nk_bool nk_combo_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
NK_API void nk_combo_close(struct nk_context*);
NK_API void nk_combo_end(struct nk_context*);
/* =============================================================================
 *
 *                                  CONTEXTUAL
 *
 * ============================================================================= */
NK_API nk_bool nk_contextual_begin(struct nk_context*, nk_flags, struct nk_vec2, struct nk_rect trigger_bounds);
NK_API nk_bool nk_contextual_item_text(struct nk_context*, const char*, int,nk_flags align);
NK_API nk_bool nk_contextual_item_label(struct nk_context*, const char*, nk_flags align);
NK_API nk_bool nk_contextual_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
NK_API nk_bool nk_contextual_item_image_text(struct nk_context*, struct nk_image, const char*, int len, nk_flags alignment);
NK_API nk_bool nk_contextual_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
NK_API nk_bool nk_contextual_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
NK_API void nk_contextual_close(struct nk_context*);
NK_API void nk_contextual_end(struct nk_context*);
/* =============================================================================
 *
 *                                  TOOLTIP
 *
 * ============================================================================= */
NK_API void nk_tooltip(struct nk_context*, const char*);
#ifdef NK_INCLUDE_STANDARD_VARARGS
NK_API void nk_tooltipf(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, ...) NK_PRINTF_VARARG_FUNC(2);
NK_API void nk_tooltipfv(struct nk_context*, NK_PRINTF_FORMAT_STRING const char*, va_list) NK_PRINTF_VALIST_FUNC(2);
#endif
NK_API nk_bool nk_tooltip_begin(struct nk_context*, float width);
NK_API void nk_tooltip_end(struct nk_context*);
/* =============================================================================
 *
 *                                  MENU
 *
 * ============================================================================= */
NK_API void nk_menubar_begin(struct nk_context*);
NK_API void nk_menubar_end(struct nk_context*);
NK_API nk_bool nk_menu_begin_text(struct nk_context*, const char* title, int title_len, nk_flags align, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_label(struct nk_context*, const char*, nk_flags align, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_image(struct nk_context*, const char*, struct nk_image, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_image_text(struct nk_context*, const char*, int,nk_flags align,struct nk_image, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_image_label(struct nk_context*, const char*, nk_flags align,struct nk_image, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_symbol(struct nk_context*, const char*, enum nk_symbol_type, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_symbol_text(struct nk_context*, const char*, int,nk_flags align,enum nk_symbol_type, struct nk_vec2 size);
NK_API nk_bool nk_menu_begin_symbol_label(struct nk_context*, const char*, nk_flags align,enum nk_symbol_type, struct nk_vec2 size);
NK_API nk_bool nk_menu_item_text(struct nk_context*, const char*, int,nk_flags align);
NK_API nk_bool nk_menu_item_label(struct nk_context*, const char*, nk_flags alignment);
NK_API nk_bool nk_menu_item_image_label(struct nk_context*, struct nk_image, const char*, nk_flags alignment);
NK_API nk_bool nk_menu_item_image_text(struct nk_context*, struct nk_image, const char*, int len, nk_flags alignment);
NK_API nk_bool nk_menu_item_symbol_text(struct nk_context*, enum nk_symbol_type, const char*, int, nk_flags alignment);
NK_API nk_bool nk_menu_item_symbol_label(struct nk_context*, enum nk_symbol_type, const char*, nk_flags alignment);
NK_API void nk_menu_close(struct nk_context*);
NK_API void nk_menu_end(struct nk_context*);
/* =============================================================================
 *
 *                                  STYLE
 *
 * ============================================================================= */
 
#define NK_WIDGET_DISABLED_FACTOR 0.5f
 
enum nk_style_colors {
    NK_COLOR_TEXT,
    NK_COLOR_WINDOW,
    NK_COLOR_HEADER,
    NK_COLOR_BORDER,
    NK_COLOR_BUTTON,
    NK_COLOR_BUTTON_HOVER,
    NK_COLOR_BUTTON_ACTIVE,
    NK_COLOR_TOGGLE,
    NK_COLOR_TOGGLE_HOVER,
    NK_COLOR_TOGGLE_CURSOR,
    NK_COLOR_SELECT,
    NK_COLOR_SELECT_ACTIVE,
    NK_COLOR_SLIDER,
    NK_COLOR_SLIDER_CURSOR,
    NK_COLOR_SLIDER_CURSOR_HOVER,
    NK_COLOR_SLIDER_CURSOR_ACTIVE,
    NK_COLOR_PROPERTY,
    NK_COLOR_EDIT,
    NK_COLOR_EDIT_CURSOR,
    NK_COLOR_COMBO,
    NK_COLOR_CHART,
    NK_COLOR_CHART_COLOR,
    NK_COLOR_CHART_COLOR_HIGHLIGHT,
    NK_COLOR_SCROLLBAR,
    NK_COLOR_SCROLLBAR_CURSOR,
    NK_COLOR_SCROLLBAR_CURSOR_HOVER,
    NK_COLOR_SCROLLBAR_CURSOR_ACTIVE,
    NK_COLOR_TAB_HEADER,
    NK_COLOR_KNOB,
    NK_COLOR_KNOB_CURSOR,
    NK_COLOR_KNOB_CURSOR_HOVER,
    NK_COLOR_KNOB_CURSOR_ACTIVE,
    NK_COLOR_COUNT
};
enum nk_style_cursor {
    NK_CURSOR_ARROW,
    NK_CURSOR_TEXT,
    NK_CURSOR_MOVE,
    NK_CURSOR_RESIZE_VERTICAL,
    NK_CURSOR_RESIZE_HORIZONTAL,
    NK_CURSOR_RESIZE_TOP_LEFT_DOWN_RIGHT,
    NK_CURSOR_RESIZE_TOP_RIGHT_DOWN_LEFT,
    NK_CURSOR_COUNT
};
NK_API void nk_style_default(struct nk_context*);
NK_API void nk_style_from_table(struct nk_context*, const struct nk_color*);
NK_API void nk_style_load_cursor(struct nk_context*, enum nk_style_cursor, const struct nk_cursor*);
NK_API void nk_style_load_all_cursors(struct nk_context*, const struct nk_cursor*);
NK_API const char* nk_style_get_color_by_name(enum nk_style_colors);
NK_API void nk_style_set_font(struct nk_context*, const struct nk_user_font*);
NK_API nk_bool nk_style_set_cursor(struct nk_context*, enum nk_style_cursor);
NK_API void nk_style_show_cursor(struct nk_context*);
NK_API void nk_style_hide_cursor(struct nk_context*);
 
NK_API nk_bool nk_style_push_font(struct nk_context*, const struct nk_user_font*);
NK_API nk_bool nk_style_push_float(struct nk_context*, float*, float);
NK_API nk_bool nk_style_push_vec2(struct nk_context*, struct nk_vec2*, struct nk_vec2);
NK_API nk_bool nk_style_push_style_item(struct nk_context*, struct nk_style_item*, struct nk_style_item);
NK_API nk_bool nk_style_push_flags(struct nk_context*, nk_flags*, nk_flags);
NK_API nk_bool nk_style_push_color(struct nk_context*, struct nk_color*, struct nk_color);
 
NK_API nk_bool nk_style_pop_font(struct nk_context*);
NK_API nk_bool nk_style_pop_float(struct nk_context*);
NK_API nk_bool nk_style_pop_vec2(struct nk_context*);
NK_API nk_bool nk_style_pop_style_item(struct nk_context*);
NK_API nk_bool nk_style_pop_flags(struct nk_context*);
NK_API nk_bool nk_style_pop_color(struct nk_context*);
/* =============================================================================
 *
 *                                  COLOR
 *
 * ============================================================================= */
NK_API struct nk_color nk_rgb(int r, int g, int b);
NK_API struct nk_color nk_rgb_iv(const int *rgb);
NK_API struct nk_color nk_rgb_bv(const nk_byte* rgb);
NK_API struct nk_color nk_rgb_f(float r, float g, float b);
NK_API struct nk_color nk_rgb_fv(const float *rgb);
NK_API struct nk_color nk_rgb_cf(struct nk_colorf c);
NK_API struct nk_color nk_rgb_hex(const char *rgb);
NK_API struct nk_color nk_rgb_factor(struct nk_color col, float factor);
 
NK_API struct nk_color nk_rgba(int r, int g, int b, int a);
NK_API struct nk_color nk_rgba_u32(nk_uint);
NK_API struct nk_color nk_rgba_iv(const int *rgba);
NK_API struct nk_color nk_rgba_bv(const nk_byte *rgba);
NK_API struct nk_color nk_rgba_f(float r, float g, float b, float a);
NK_API struct nk_color nk_rgba_fv(const float *rgba);
NK_API struct nk_color nk_rgba_cf(struct nk_colorf c);
NK_API struct nk_color nk_rgba_hex(const char *rgb);
 
NK_API struct nk_colorf nk_hsva_colorf(float h, float s, float v, float a);
NK_API struct nk_colorf nk_hsva_colorfv(const float *c);
NK_API void nk_colorf_hsva_f(float *out_h, float *out_s, float *out_v, float *out_a, struct nk_colorf in);
NK_API void nk_colorf_hsva_fv(float *hsva, struct nk_colorf in);
 
NK_API struct nk_color nk_hsv(int h, int s, int v);
NK_API struct nk_color nk_hsv_iv(const int *hsv);
NK_API struct nk_color nk_hsv_bv(const nk_byte *hsv);
NK_API struct nk_color nk_hsv_f(float h, float s, float v);
NK_API struct nk_color nk_hsv_fv(const float *hsv);
 
NK_API struct nk_color nk_hsva(int h, int s, int v, int a);
NK_API struct nk_color nk_hsva_iv(const int *hsva);
NK_API struct nk_color nk_hsva_bv(const nk_byte *hsva);
NK_API struct nk_color nk_hsva_f(float h, float s, float v, float a);
NK_API struct nk_color nk_hsva_fv(const float *hsva);
 
/* color (conversion nuklear --> user) */
NK_API void nk_color_f(float *r, float *g, float *b, float *a, struct nk_color);
NK_API void nk_color_fv(float *rgba_out, struct nk_color);
NK_API struct nk_colorf nk_color_cf(struct nk_color);
NK_API void nk_color_d(double *r, double *g, double *b, double *a, struct nk_color);
NK_API void nk_color_dv(double *rgba_out, struct nk_color);
 
NK_API nk_uint nk_color_u32(struct nk_color);
NK_API void nk_color_hex_rgba(char *output, struct nk_color);
NK_API void nk_color_hex_rgb(char *output, struct nk_color);
 
NK_API void nk_color_hsv_i(int *out_h, int *out_s, int *out_v, struct nk_color);
NK_API void nk_color_hsv_b(nk_byte *out_h, nk_byte *out_s, nk_byte *out_v, struct nk_color);
NK_API void nk_color_hsv_iv(int *hsv_out, struct nk_color);
NK_API void nk_color_hsv_bv(nk_byte *hsv_out, struct nk_color);
NK_API void nk_color_hsv_f(float *out_h, float *out_s, float *out_v, struct nk_color);
NK_API void nk_color_hsv_fv(float *hsv_out, struct nk_color);
 
NK_API void nk_color_hsva_i(int *h, int *s, int *v, int *a, struct nk_color);
NK_API void nk_color_hsva_b(nk_byte *h, nk_byte *s, nk_byte *v, nk_byte *a, struct nk_color);
NK_API void nk_color_hsva_iv(int *hsva_out, struct nk_color);
NK_API void nk_color_hsva_bv(nk_byte *hsva_out, struct nk_color);
NK_API void nk_color_hsva_f(float *out_h, float *out_s, float *out_v, float *out_a, struct nk_color);
NK_API void nk_color_hsva_fv(float *hsva_out, struct nk_color);
/* =============================================================================
 *
 *                                  IMAGE
 *
 * ============================================================================= */
NK_API nk_handle nk_handle_ptr(void*);
NK_API nk_handle nk_handle_id(int);
NK_API struct nk_image nk_image_handle(nk_handle);
NK_API struct nk_image nk_image_ptr(void*);
NK_API struct nk_image nk_image_id(int);
NK_API nk_bool nk_image_is_subimage(const struct nk_image* img);
NK_API struct nk_image nk_subimage_ptr(void*, nk_ushort w, nk_ushort h, struct nk_rect sub_region);
NK_API struct nk_image nk_subimage_id(int, nk_ushort w, nk_ushort h, struct nk_rect sub_region);
NK_API struct nk_image nk_subimage_handle(nk_handle, nk_ushort w, nk_ushort h, struct nk_rect sub_region);
/* =============================================================================
 *
 *                                  9-SLICE
 *
 * ============================================================================= */
NK_API struct nk_nine_slice nk_nine_slice_handle(nk_handle, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
NK_API struct nk_nine_slice nk_nine_slice_ptr(void*, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
NK_API struct nk_nine_slice nk_nine_slice_id(int, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
NK_API int nk_nine_slice_is_sub9slice(const struct nk_nine_slice* img);
NK_API struct nk_nine_slice nk_sub9slice_ptr(void*, nk_ushort w, nk_ushort h, struct nk_rect sub_region, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
NK_API struct nk_nine_slice nk_sub9slice_id(int, nk_ushort w, nk_ushort h, struct nk_rect sub_region, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
NK_API struct nk_nine_slice nk_sub9slice_handle(nk_handle, nk_ushort w, nk_ushort h, struct nk_rect sub_region, nk_ushort l, nk_ushort t, nk_ushort r, nk_ushort b);
/* =============================================================================
 *
 *                                  MATH
 *
 * ============================================================================= */
NK_API nk_hash nk_murmur_hash(const void *key, int len, nk_hash seed);
NK_API void nk_triangle_from_direction(struct nk_vec2 *result, struct nk_rect r, float pad_x, float pad_y, enum nk_heading);
 
NK_API struct nk_vec2 nk_vec2(float x, float y);
NK_API struct nk_vec2 nk_vec2i(int x, int y);
NK_API struct nk_vec2 nk_vec2v(const float *xy);
NK_API struct nk_vec2 nk_vec2iv(const int *xy);
 
NK_API struct nk_rect nk_get_null_rect(void);
NK_API struct nk_rect nk_rect(float x, float y, float w, float h);
NK_API struct nk_rect nk_recti(int x, int y, int w, int h);
NK_API struct nk_rect nk_recta(struct nk_vec2 pos, struct nk_vec2 size);
NK_API struct nk_rect nk_rectv(const float *xywh);
NK_API struct nk_rect nk_rectiv(const int *xywh);
NK_API struct nk_vec2 nk_rect_pos(struct nk_rect);
NK_API struct nk_vec2 nk_rect_size(struct nk_rect);
/* =============================================================================
 *
 *                                  STRING
 *
 * ============================================================================= */
NK_API int nk_strlen(const char *str);
NK_API int nk_stricmp(const char *s1, const char *s2);
NK_API int nk_stricmpn(const char *s1, const char *s2, int n);
NK_API int nk_strtoi(const char *str, char **endptr);
NK_API float nk_strtof(const char *str, char **endptr);
#ifndef NK_STRTOD
#define NK_STRTOD nk_strtod
#define NK_STRTOD_NEEDED
NK_API double nk_strtod(const char *str, char **endptr);
#endif
NK_API int nk_strfilter(const char *text, const char *regexp);
NK_API int nk_strmatch_fuzzy_string(char const *str, char const *pattern, int *out_score);
NK_API int nk_strmatch_fuzzy_text(const char *txt, int txt_len, const char *pattern, int *out_score);
/* =============================================================================
 *
 *                                  UTF-8
 *
 * ============================================================================= */
NK_API int nk_utf_decode(const char*, nk_rune*, int);
NK_API int nk_utf_encode(nk_rune, char*, int);
NK_API int nk_utf_len(const char*, int byte_len);
NK_API const char* nk_utf_at(const char *buffer, int length, int index, nk_rune *unicode, int *len);
/* ===============================================================
 *
 *                          FONT
 *
 * ===============================================================*/
struct nk_user_font_glyph;
typedef float(*nk_text_width_f)(nk_handle, float h, const char*, int len);
typedef void(*nk_query_font_glyph_f)(nk_handle handle, float font_height,
                                    struct nk_user_font_glyph *glyph,
                                    nk_rune codepoint, nk_rune next_codepoint);
 
#if defined(NK_INCLUDE_VERTEX_BUFFER_OUTPUT) || defined(NK_INCLUDE_SOFTWARE_FONT)
struct nk_user_font_glyph {
    struct nk_vec2 uv[2];  
    struct nk_vec2 offset; 
    float width, height;   
    float xadvance;        
};
#endif
 
struct nk_user_font {
    nk_handle userdata;    
    float height;          
    nk_text_width_f width; 
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
    nk_query_font_glyph_f query; 
    nk_handle texture;           
#endif
};
 
#ifdef NK_INCLUDE_FONT_BAKING
enum nk_font_coord_type {
    NK_COORD_UV,   
    NK_COORD_PIXEL 
};
 
struct nk_font;
struct nk_baked_font {
    float height;          
    float ascent;          
    float descent;         
    nk_rune glyph_offset;  
    nk_rune glyph_count;   
    const nk_rune *ranges; 
};
 
struct nk_font_config {
    struct nk_font_config *next; 
    void *ttf_blob;              
    nk_size ttf_size;            
    unsigned char ttf_data_owned_by_atlas;    
    unsigned char merge_mode;                 
    unsigned char pixel_snap;                 
    unsigned char oversample_v, oversample_h; 
    unsigned char padding[3];
 
    float size;                         
    enum nk_font_coord_type coord_type; 
    struct nk_vec2 spacing;             
    const nk_rune *range;               
    struct nk_baked_font *font;         
    nk_rune fallback_glyph;             
    struct nk_font_config *n;
    struct nk_font_config *p;
};
 
struct nk_font_glyph {
    nk_rune codepoint;
    float xadvance;
    float x0, y0, x1, y1, w, h;
    float u0, v0, u1, v1;
};
 
struct nk_font {
    struct nk_font *next;
    struct nk_user_font handle;
    struct nk_baked_font info;
    float scale;
    struct nk_font_glyph *glyphs;
    const struct nk_font_glyph *fallback;
    nk_rune fallback_codepoint;
    nk_handle texture;
    struct nk_font_config *config;
};
 
enum nk_font_atlas_format {
    NK_FONT_ATLAS_ALPHA8,
    NK_FONT_ATLAS_RGBA32
};
 
struct nk_font_atlas {
    void *pixel;
    int tex_width;
    int tex_height;
 
    struct nk_allocator permanent;
    struct nk_allocator temporary;
 
    struct nk_recti custom;
    struct nk_cursor cursors[NK_CURSOR_COUNT];
 
    int glyph_count;
    struct nk_font_glyph *glyphs;
    struct nk_font *default_font;
    struct nk_font *fonts;
    struct nk_font_config *config;
    int font_num;
};
 
NK_API const nk_rune *nk_font_default_glyph_ranges(void);
NK_API const nk_rune *nk_font_chinese_glyph_ranges(void);
NK_API const nk_rune *nk_font_cyrillic_glyph_ranges(void);
NK_API const nk_rune *nk_font_korean_glyph_ranges(void);
 
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
NK_API void nk_font_atlas_init_default(struct nk_font_atlas*);
#endif
NK_API void nk_font_atlas_init(struct nk_font_atlas*, const struct nk_allocator*);
NK_API void nk_font_atlas_init_custom(struct nk_font_atlas*, const struct nk_allocator *persistent, const struct nk_allocator *transient);
NK_API void nk_font_atlas_begin(struct nk_font_atlas*);
NK_API struct nk_font_config nk_font_config(float pixel_height);
NK_API struct nk_font *nk_font_atlas_add(struct nk_font_atlas*, const struct nk_font_config*);
#ifdef NK_INCLUDE_DEFAULT_FONT
NK_API struct nk_font* nk_font_atlas_add_default(struct nk_font_atlas*, float height, const struct nk_font_config*);
#endif
NK_API struct nk_font* nk_font_atlas_add_from_memory(struct nk_font_atlas *atlas, void *memory, nk_size size, float height, const struct nk_font_config *config);
#ifdef NK_INCLUDE_STANDARD_IO
NK_API struct nk_font* nk_font_atlas_add_from_file(struct nk_font_atlas *atlas, const char *file_path, float height, const struct nk_font_config*);
#endif
NK_API struct nk_font *nk_font_atlas_add_compressed(struct nk_font_atlas*, void *memory, nk_size size, float height, const struct nk_font_config*);
NK_API struct nk_font* nk_font_atlas_add_compressed_base85(struct nk_font_atlas*, const char *data, float height, const struct nk_font_config *config);
NK_API const void* nk_font_atlas_bake(struct nk_font_atlas*, int *width, int *height, enum nk_font_atlas_format);
NK_API void nk_font_atlas_end(struct nk_font_atlas*, nk_handle tex, struct nk_draw_null_texture*);
NK_API const struct nk_font_glyph* nk_font_find_glyph(const struct nk_font*, nk_rune unicode);
NK_API void nk_font_atlas_cleanup(struct nk_font_atlas *atlas);
NK_API void nk_font_atlas_clear(struct nk_font_atlas*);
 
#endif
 
/* ==============================================================
 *
 *                          MEMORY BUFFER
 *
 * ===============================================================*/
struct nk_memory_status {
    void *memory;
    unsigned int type;
    nk_size size;
    nk_size allocated;
    nk_size needed;
    nk_size calls;
};
 
enum nk_allocation_type {
    NK_BUFFER_FIXED,
    NK_BUFFER_DYNAMIC
};
 
enum nk_buffer_allocation_type {
    NK_BUFFER_FRONT,
    NK_BUFFER_BACK,
    NK_BUFFER_MAX
};
 
struct nk_buffer_marker {
    nk_bool active;
    nk_size offset;
};
 
struct nk_memory {void *ptr;nk_size size;};
struct nk_buffer {
    struct nk_buffer_marker marker[NK_BUFFER_MAX]; 
    struct nk_allocator pool;     
    enum nk_allocation_type type; 
    struct nk_memory memory;      
    float grow_factor;            
    nk_size allocated;            
    nk_size needed;               
    nk_size calls;                
    nk_size size;                 
};
 
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
NK_API void nk_buffer_init_default(struct nk_buffer*);
#endif
NK_API void nk_buffer_init(struct nk_buffer*, const struct nk_allocator*, nk_size size);
NK_API void nk_buffer_init_fixed(struct nk_buffer*, void *memory, nk_size size);
NK_API void nk_buffer_info(struct nk_memory_status*, const struct nk_buffer*);
NK_API void nk_buffer_push(struct nk_buffer*, enum nk_buffer_allocation_type type, const void *memory, nk_size size, nk_size align);
NK_API void nk_buffer_mark(struct nk_buffer*, enum nk_buffer_allocation_type type);
NK_API void nk_buffer_reset(struct nk_buffer*, enum nk_buffer_allocation_type type);
NK_API void nk_buffer_clear(struct nk_buffer*);
NK_API void nk_buffer_free(struct nk_buffer*);
NK_API void *nk_buffer_memory(struct nk_buffer*);
NK_API const void *nk_buffer_memory_const(const struct nk_buffer*);
NK_API nk_size nk_buffer_total(const struct nk_buffer*);
 
/* ==============================================================
 *
 *                          STRING
 *
 * ===============================================================*/
struct nk_str {
    struct nk_buffer buffer;
    int len; 
};
 
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
NK_API void nk_str_init_default(struct nk_str*);
#endif
NK_API void nk_str_init(struct nk_str*, const struct nk_allocator*, nk_size size);
NK_API void nk_str_init_fixed(struct nk_str*, void *memory, nk_size size);
NK_API void nk_str_clear(struct nk_str*);
NK_API void nk_str_free(struct nk_str*);
 
NK_API int nk_str_append_text_char(struct nk_str*, const char*, int);
NK_API int nk_str_append_str_char(struct nk_str*, const char*);
NK_API int nk_str_append_text_utf8(struct nk_str*, const char*, int);
NK_API int nk_str_append_str_utf8(struct nk_str*, const char*);
NK_API int nk_str_append_text_runes(struct nk_str*, const nk_rune*, int);
NK_API int nk_str_append_str_runes(struct nk_str*, const nk_rune*);
 
NK_API int nk_str_insert_at_char(struct nk_str*, int pos, const char*, int);
NK_API int nk_str_insert_at_rune(struct nk_str*, int pos, const char*, int);
 
NK_API int nk_str_insert_text_char(struct nk_str*, int pos, const char*, int);
NK_API int nk_str_insert_str_char(struct nk_str*, int pos, const char*);
NK_API int nk_str_insert_text_utf8(struct nk_str*, int pos, const char*, int);
NK_API int nk_str_insert_str_utf8(struct nk_str*, int pos, const char*);
NK_API int nk_str_insert_text_runes(struct nk_str*, int pos, const nk_rune*, int);
NK_API int nk_str_insert_str_runes(struct nk_str*, int pos, const nk_rune*);
 
NK_API void nk_str_remove_chars(struct nk_str*, int len);
NK_API void nk_str_remove_runes(struct nk_str *str, int len);
NK_API void nk_str_delete_chars(struct nk_str*, int pos, int len);
NK_API void nk_str_delete_runes(struct nk_str*, int pos, int len);
 
NK_API char *nk_str_at_char(struct nk_str*, int pos);
NK_API char *nk_str_at_rune(struct nk_str*, int pos, nk_rune *unicode, int *len);
NK_API nk_rune nk_str_rune_at(const struct nk_str*, int pos);
NK_API const char *nk_str_at_char_const(const struct nk_str*, int pos);
NK_API const char *nk_str_at_const(const struct nk_str*, int pos, nk_rune *unicode, int *len);
 
NK_API char *nk_str_get(struct nk_str*);
NK_API const char *nk_str_get_const(const struct nk_str*);
NK_API int nk_str_len(const struct nk_str*);
NK_API int nk_str_len_char(const struct nk_str*);
 
/* ===============================================================
 *
 *                      TEXT EDITOR
 *
 * ===============================================================*/
#ifndef NK_TEXTEDIT_UNDOSTATECOUNT
#define NK_TEXTEDIT_UNDOSTATECOUNT     99
#endif
 
#ifndef NK_TEXTEDIT_UNDOCHARCOUNT
#define NK_TEXTEDIT_UNDOCHARCOUNT      999
#endif
 
struct nk_text_edit;
struct nk_clipboard {
    nk_handle userdata;
    nk_plugin_paste paste;
    nk_plugin_copy copy;
};
 
struct nk_text_undo_record {
   int where;
   short insert_length;
   short delete_length;
   short char_storage;
};
 
struct nk_text_undo_state {
   struct nk_text_undo_record undo_rec[NK_TEXTEDIT_UNDOSTATECOUNT];
   nk_rune undo_char[NK_TEXTEDIT_UNDOCHARCOUNT];
   short undo_point;
   short redo_point;
   short undo_char_point;
   short redo_char_point;
};
 
enum nk_text_edit_type {
    NK_TEXT_EDIT_SINGLE_LINE,
    NK_TEXT_EDIT_MULTI_LINE
};
 
enum nk_text_edit_mode {
    NK_TEXT_EDIT_MODE_VIEW,
    NK_TEXT_EDIT_MODE_INSERT,
    NK_TEXT_EDIT_MODE_REPLACE
};
 
struct nk_text_edit {
    struct nk_clipboard clip;
    struct nk_str string;
    nk_plugin_filter filter;
    struct nk_vec2 scrollbar;
 
    int cursor;
    int select_start;
    int select_end;
    unsigned char mode;
    unsigned char cursor_at_end_of_line;
    unsigned char initialized;
    unsigned char has_preferred_x;
    unsigned char single_line;
    unsigned char active;
    unsigned char padding1;
    float preferred_x;
    struct nk_text_undo_state undo;
};
 
NK_API nk_bool nk_filter_default(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_ascii(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_float(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_decimal(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_hex(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_oct(const struct nk_text_edit*, nk_rune unicode);
NK_API nk_bool nk_filter_binary(const struct nk_text_edit*, nk_rune unicode);
 
#ifdef NK_INCLUDE_DEFAULT_ALLOCATOR
NK_API void nk_textedit_init_default(struct nk_text_edit*);
#endif
NK_API void nk_textedit_init(struct nk_text_edit*, const struct nk_allocator*, nk_size size);
NK_API void nk_textedit_init_fixed(struct nk_text_edit*, void *memory, nk_size size);
NK_API void nk_textedit_free(struct nk_text_edit*);
NK_API void nk_textedit_text(struct nk_text_edit*, const char*, int total_len);
NK_API void nk_textedit_delete(struct nk_text_edit*, int where, int len);
NK_API void nk_textedit_delete_selection(struct nk_text_edit*);
NK_API void nk_textedit_select_all(struct nk_text_edit*);
NK_API nk_bool nk_textedit_cut(struct nk_text_edit*);
NK_API nk_bool nk_textedit_paste(struct nk_text_edit*, char const*, int len);
NK_API void nk_textedit_undo(struct nk_text_edit*);
NK_API void nk_textedit_redo(struct nk_text_edit*);
 
/* ===============================================================
 *
 *                          DRAWING
 *
 * ===============================================================*/
enum nk_command_type {
    NK_COMMAND_NOP,
    NK_COMMAND_SCISSOR,
    NK_COMMAND_LINE,
    NK_COMMAND_CURVE,
    NK_COMMAND_RECT,
    NK_COMMAND_RECT_FILLED,
    NK_COMMAND_RECT_MULTI_COLOR,
    NK_COMMAND_CIRCLE,
    NK_COMMAND_CIRCLE_FILLED,
    NK_COMMAND_ARC,
    NK_COMMAND_ARC_FILLED,
    NK_COMMAND_TRIANGLE,
    NK_COMMAND_TRIANGLE_FILLED,
    NK_COMMAND_POLYGON,
    NK_COMMAND_POLYGON_FILLED,
    NK_COMMAND_POLYLINE,
    NK_COMMAND_TEXT,
    NK_COMMAND_IMAGE,
    NK_COMMAND_CUSTOM
};
 
struct nk_command {
    enum nk_command_type type;
    nk_size next;
#ifdef NK_INCLUDE_COMMAND_USERDATA
    nk_handle userdata;
#endif
};
 
struct nk_command_scissor {
    struct nk_command header;
    short x, y;
    unsigned short w, h;
};
 
struct nk_command_line {
    struct nk_command header;
    unsigned short line_thickness;
    struct nk_vec2i begin;
    struct nk_vec2i end;
    struct nk_color color;
};
 
struct nk_command_curve {
    struct nk_command header;
    unsigned short line_thickness;
    struct nk_vec2i begin;
    struct nk_vec2i end;
    struct nk_vec2i ctrl[2];
    struct nk_color color;
};
 
struct nk_command_rect {
    struct nk_command header;
    unsigned short rounding;
    unsigned short line_thickness;
    short x, y;
    unsigned short w, h;
    struct nk_color color;
};
 
struct nk_command_rect_filled {
    struct nk_command header;
    unsigned short rounding;
    short x, y;
    unsigned short w, h;
    struct nk_color color;
};
 
struct nk_command_rect_multi_color {
    struct nk_command header;
    short x, y;
    unsigned short w, h;
    struct nk_color left;
    struct nk_color top;
    struct nk_color bottom;
    struct nk_color right;
};
 
struct nk_command_triangle {
    struct nk_command header;
    unsigned short line_thickness;
    struct nk_vec2i a;
    struct nk_vec2i b;
    struct nk_vec2i c;
    struct nk_color color;
};
 
struct nk_command_triangle_filled {
    struct nk_command header;
    struct nk_vec2i a;
    struct nk_vec2i b;
    struct nk_vec2i c;
    struct nk_color color;
};
 
struct nk_command_circle {
    struct nk_command header;
    short x, y;
    unsigned short line_thickness;
    unsigned short w, h;
    struct nk_color color;
};
 
struct nk_command_circle_filled {
    struct nk_command header;
    short x, y;
    unsigned short w, h;
    struct nk_color color;
};
 
struct nk_command_arc {
    struct nk_command header;
    short cx, cy;
    unsigned short r;
    unsigned short line_thickness;
    float a[2];
    struct nk_color color;
};
 
struct nk_command_arc_filled {
    struct nk_command header;
    short cx, cy;
    unsigned short r;
    float a[2];
    struct nk_color color;
};
 
struct nk_command_polygon {
    struct nk_command header;
    struct nk_color color;
    unsigned short line_thickness;
    unsigned short point_count;
    struct nk_vec2i points[1];
};
 
struct nk_command_polygon_filled {
    struct nk_command header;
    struct nk_color color;
    unsigned short point_count;
    struct nk_vec2i points[1];
};
 
struct nk_command_polyline {
    struct nk_command header;
    struct nk_color color;
    unsigned short line_thickness;
    unsigned short point_count;
    struct nk_vec2i points[1];
};
 
struct nk_command_image {
    struct nk_command header;
    short x, y;
    unsigned short w, h;
    struct nk_image img;
    struct nk_color col;
};
 
typedef void (*nk_command_custom_callback)(void *canvas, short x,short y,
    unsigned short w, unsigned short h, nk_handle callback_data);
struct nk_command_custom {
    struct nk_command header;
    short x, y;
    unsigned short w, h;
    nk_handle callback_data;
    nk_command_custom_callback callback;
};
 
struct nk_command_text {
    struct nk_command header;
    const struct nk_user_font *font;
    struct nk_color background;
    struct nk_color foreground;
    short x, y;
    unsigned short w, h;
    float height;
    int length;
    char string[2];
};
 
enum nk_command_clipping {
    NK_CLIPPING_OFF = nk_false,
    NK_CLIPPING_ON = nk_true
};
 
struct nk_command_buffer {
    struct nk_buffer *base;
    struct nk_rect clip;
    int use_clipping;
    nk_handle userdata;
    nk_size begin, end, last;
};
 
NK_API void nk_stroke_line(struct nk_command_buffer *b, float x0, float y0, float x1, float y1, float line_thickness, struct nk_color);
NK_API void nk_stroke_curve(struct nk_command_buffer*, float, float, float, float, float, float, float, float, float line_thickness, struct nk_color);
NK_API void nk_stroke_rect(struct nk_command_buffer*, struct nk_rect, float rounding, float line_thickness, struct nk_color);
NK_API void nk_stroke_circle(struct nk_command_buffer*, struct nk_rect, float line_thickness, struct nk_color);
NK_API void nk_stroke_arc(struct nk_command_buffer*, float cx, float cy, float radius, float a_min, float a_max, float line_thickness, struct nk_color);
NK_API void nk_stroke_triangle(struct nk_command_buffer*, float, float, float, float, float, float, float line_thichness, struct nk_color);
NK_API void nk_stroke_polyline(struct nk_command_buffer*, const float *points, int point_count, float line_thickness, struct nk_color col);
NK_API void nk_stroke_polygon(struct nk_command_buffer*, const float *points, int point_count, float line_thickness, struct nk_color);
 
NK_API void nk_fill_rect(struct nk_command_buffer*, struct nk_rect, float rounding, struct nk_color);
NK_API void nk_fill_rect_multi_color(struct nk_command_buffer*, struct nk_rect, struct nk_color left, struct nk_color top, struct nk_color right, struct nk_color bottom);
NK_API void nk_fill_circle(struct nk_command_buffer*, struct nk_rect, struct nk_color);
NK_API void nk_fill_arc(struct nk_command_buffer*, float cx, float cy, float radius, float a_min, float a_max, struct nk_color);
NK_API void nk_fill_triangle(struct nk_command_buffer*, float x0, float y0, float x1, float y1, float x2, float y2, struct nk_color);
NK_API void nk_fill_polygon(struct nk_command_buffer*, const float *points, int point_count, struct nk_color);
 
NK_API void nk_draw_image(struct nk_command_buffer*, struct nk_rect, const struct nk_image*, struct nk_color);
NK_API void nk_draw_nine_slice(struct nk_command_buffer*, struct nk_rect, const struct nk_nine_slice*, struct nk_color);
NK_API void nk_draw_text(struct nk_command_buffer*, struct nk_rect, const char *text, int len, const struct nk_user_font*, struct nk_color, struct nk_color);
NK_API void nk_push_scissor(struct nk_command_buffer*, struct nk_rect);
NK_API void nk_push_custom(struct nk_command_buffer*, struct nk_rect, nk_command_custom_callback, nk_handle usr);
 
/* ===============================================================
 *
 *                          INPUT
 *
 * ===============================================================*/
struct nk_mouse_button {
    nk_bool down;
    unsigned int clicked;
    struct nk_vec2 clicked_pos;
};
struct nk_mouse {
    struct nk_mouse_button buttons[NK_BUTTON_MAX];
    struct nk_vec2 pos;
#ifdef NK_BUTTON_TRIGGER_ON_RELEASE
    struct nk_vec2 down_pos;
#endif
    struct nk_vec2 prev;
    struct nk_vec2 delta;
    struct nk_vec2 scroll_delta;
    unsigned char grab;
    unsigned char grabbed;
    unsigned char ungrab;
};
 
struct nk_key {
    nk_bool down;
    unsigned int clicked;
};
struct nk_keyboard {
    struct nk_key keys[NK_KEY_MAX];
    char text[NK_INPUT_MAX];
    int text_len;
};
 
struct nk_input {
    struct nk_keyboard keyboard;
    struct nk_mouse mouse;
};
 
NK_API nk_bool nk_input_has_mouse_click(const struct nk_input*, enum nk_buttons);
NK_API nk_bool nk_input_has_mouse_click_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect);
NK_API nk_bool nk_input_has_mouse_click_in_button_rect(const struct nk_input*, enum nk_buttons, struct nk_rect);
NK_API nk_bool nk_input_has_mouse_click_down_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect, nk_bool down);
NK_API nk_bool nk_input_is_mouse_click_in_rect(const struct nk_input*, enum nk_buttons, struct nk_rect);
NK_API nk_bool nk_input_is_mouse_click_down_in_rect(const struct nk_input *i, enum nk_buttons id, struct nk_rect b, nk_bool down);
NK_API nk_bool nk_input_any_mouse_click_in_rect(const struct nk_input*, struct nk_rect);
NK_API nk_bool nk_input_is_mouse_prev_hovering_rect(const struct nk_input*, struct nk_rect);
NK_API nk_bool nk_input_is_mouse_hovering_rect(const struct nk_input*, struct nk_rect);
NK_API nk_bool nk_input_is_mouse_moved(const struct nk_input*);
NK_API nk_bool nk_input_mouse_clicked(const struct nk_input*, enum nk_buttons, struct nk_rect);
NK_API nk_bool nk_input_is_mouse_down(const struct nk_input*, enum nk_buttons);
NK_API nk_bool nk_input_is_mouse_pressed(const struct nk_input*, enum nk_buttons);
NK_API nk_bool nk_input_is_mouse_released(const struct nk_input*, enum nk_buttons);
NK_API nk_bool nk_input_is_key_pressed(const struct nk_input*, enum nk_keys);
NK_API nk_bool nk_input_is_key_released(const struct nk_input*, enum nk_keys);
NK_API nk_bool nk_input_is_key_down(const struct nk_input*, enum nk_keys);
 
/* ===============================================================
 *
 *                          DRAW LIST
 *
 * ===============================================================*/
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#ifdef NK_UINT_DRAW_INDEX
typedef nk_uint nk_draw_index;
#else
typedef nk_ushort nk_draw_index;
#endif
enum nk_draw_list_stroke {
    NK_STROKE_OPEN = nk_false, /***< build up path has no connection back to the beginning */
    NK_STROKE_CLOSED = nk_true /***< build up path has a connection back to the beginning */
};
 
enum nk_draw_vertex_layout_attribute {
    NK_VERTEX_POSITION,
    NK_VERTEX_COLOR,
    NK_VERTEX_TEXCOORD,
    NK_VERTEX_ATTRIBUTE_COUNT
};
 
enum nk_draw_vertex_layout_format {
    NK_FORMAT_SCHAR,
    NK_FORMAT_SSHORT,
    NK_FORMAT_SINT,
    NK_FORMAT_UCHAR,
    NK_FORMAT_USHORT,
    NK_FORMAT_UINT,
    NK_FORMAT_FLOAT,
    NK_FORMAT_DOUBLE,
 
NK_FORMAT_COLOR_BEGIN,
    NK_FORMAT_R8G8B8 = NK_FORMAT_COLOR_BEGIN,
    NK_FORMAT_R16G15B16,
    NK_FORMAT_R32G32B32,
 
    NK_FORMAT_R8G8B8A8,
    NK_FORMAT_B8G8R8A8,
    NK_FORMAT_R16G15B16A16,
    NK_FORMAT_R32G32B32A32,
    NK_FORMAT_R32G32B32A32_FLOAT,
    NK_FORMAT_R32G32B32A32_DOUBLE,
 
    NK_FORMAT_RGB32,
    NK_FORMAT_RGBA32,
NK_FORMAT_COLOR_END = NK_FORMAT_RGBA32,
    NK_FORMAT_COUNT
};
 
#define NK_VERTEX_LAYOUT_END NK_VERTEX_ATTRIBUTE_COUNT,NK_FORMAT_COUNT,0
struct nk_draw_vertex_layout_element {
    enum nk_draw_vertex_layout_attribute attribute;
    enum nk_draw_vertex_layout_format format;
    nk_size offset;
};
 
struct nk_draw_command {
    unsigned int elem_count; 
    struct nk_rect clip_rect; 
    nk_handle texture; 
#ifdef NK_INCLUDE_COMMAND_USERDATA
    nk_handle userdata;
#endif
};
 
struct nk_draw_list {
    struct nk_rect clip_rect;
    struct nk_vec2 circle_vtx[12];
    struct nk_convert_config config;
 
    struct nk_buffer *buffer;
    struct nk_buffer *vertices;
    struct nk_buffer *elements;
 
    unsigned int element_count;
    unsigned int vertex_count;
    unsigned int cmd_count;
    nk_size cmd_offset;
 
    unsigned int path_count;
    unsigned int path_offset;
 
    enum nk_anti_aliasing line_AA;
    enum nk_anti_aliasing shape_AA;
 
#ifdef NK_INCLUDE_COMMAND_USERDATA
    nk_handle userdata;
#endif
};
 
/* draw list */
NK_API void nk_draw_list_init(struct nk_draw_list*);
NK_API void nk_draw_list_setup(struct nk_draw_list*, const struct nk_convert_config*, struct nk_buffer *cmds, struct nk_buffer *vertices, struct nk_buffer *elements, enum nk_anti_aliasing line_aa,enum nk_anti_aliasing shape_aa);
 
/* drawing */
#define nk_draw_list_foreach(cmd, can, b) for((cmd)=nk__draw_list_begin(can, b); (cmd)!=0; (cmd)=nk__draw_list_next(cmd, b, can))
NK_API const struct nk_draw_command* nk__draw_list_begin(const struct nk_draw_list*, const struct nk_buffer*);
NK_API const struct nk_draw_command* nk__draw_list_next(const struct nk_draw_command*, const struct nk_buffer*, const struct nk_draw_list*);
NK_API const struct nk_draw_command* nk__draw_list_end(const struct nk_draw_list*, const struct nk_buffer*);
 
/* path */
NK_API void nk_draw_list_path_clear(struct nk_draw_list*);
NK_API void nk_draw_list_path_line_to(struct nk_draw_list*, struct nk_vec2 pos);
NK_API void nk_draw_list_path_arc_to_fast(struct nk_draw_list*, struct nk_vec2 center, float radius, int a_min, int a_max);
NK_API void nk_draw_list_path_arc_to(struct nk_draw_list*, struct nk_vec2 center, float radius, float a_min, float a_max, unsigned int segments);
NK_API void nk_draw_list_path_rect_to(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, float rounding);
NK_API void nk_draw_list_path_curve_to(struct nk_draw_list*, struct nk_vec2 p2, struct nk_vec2 p3, struct nk_vec2 p4, unsigned int num_segments);
NK_API void nk_draw_list_path_fill(struct nk_draw_list*, struct nk_color);
NK_API void nk_draw_list_path_stroke(struct nk_draw_list*, struct nk_color, enum nk_draw_list_stroke closed, float thickness);
 
/* stroke */
NK_API void nk_draw_list_stroke_line(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_color, float thickness);
NK_API void nk_draw_list_stroke_rect(struct nk_draw_list*, struct nk_rect rect, struct nk_color, float rounding, float thickness);
NK_API void nk_draw_list_stroke_triangle(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_vec2 c, struct nk_color, float thickness);
NK_API void nk_draw_list_stroke_circle(struct nk_draw_list*, struct nk_vec2 center, float radius, struct nk_color, unsigned int segs, float thickness);
NK_API void nk_draw_list_stroke_curve(struct nk_draw_list*, struct nk_vec2 p0, struct nk_vec2 cp0, struct nk_vec2 cp1, struct nk_vec2 p1, struct nk_color, unsigned int segments, float thickness);
NK_API void nk_draw_list_stroke_poly_line(struct nk_draw_list*, const struct nk_vec2 *pnts, const unsigned int cnt, struct nk_color, enum nk_draw_list_stroke, float thickness, enum nk_anti_aliasing);
 
/* fill */
NK_API void nk_draw_list_fill_rect(struct nk_draw_list*, struct nk_rect rect, struct nk_color, float rounding);
NK_API void nk_draw_list_fill_rect_multi_color(struct nk_draw_list*, struct nk_rect rect, struct nk_color left, struct nk_color top, struct nk_color right, struct nk_color bottom);
NK_API void nk_draw_list_fill_triangle(struct nk_draw_list*, struct nk_vec2 a, struct nk_vec2 b, struct nk_vec2 c, struct nk_color);
NK_API void nk_draw_list_fill_circle(struct nk_draw_list*, struct nk_vec2 center, float radius, struct nk_color col, unsigned int segs);
NK_API void nk_draw_list_fill_poly_convex(struct nk_draw_list*, const struct nk_vec2 *points, const unsigned int count, struct nk_color, enum nk_anti_aliasing);
 
/* misc */
NK_API void nk_draw_list_add_image(struct nk_draw_list*, struct nk_image texture, struct nk_rect rect, struct nk_color);
NK_API void nk_draw_list_add_text(struct nk_draw_list*, const struct nk_user_font*, struct nk_rect, const char *text, int len, float font_height, struct nk_color);
#ifdef NK_INCLUDE_COMMAND_USERDATA
NK_API void nk_draw_list_push_userdata(struct nk_draw_list*, nk_handle userdata);
#endif
 
#endif
 
/* ===============================================================
 *
 *                          GUI
 *
 * ===============================================================*/
enum nk_style_item_type {
    NK_STYLE_ITEM_COLOR,
    NK_STYLE_ITEM_IMAGE,
    NK_STYLE_ITEM_NINE_SLICE
};
 
union nk_style_item_data {
    struct nk_color color;
    struct nk_image image;
    struct nk_nine_slice slice;
};
 
struct nk_style_item {
    enum nk_style_item_type type;
    union nk_style_item_data data;
};
 
struct nk_style_text {
    struct nk_color color;
    struct nk_vec2 padding;
    float color_factor;
    float disabled_factor;
};
 
struct nk_style_button {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
    float color_factor_background;
 
    /* text */
    struct nk_color text_background;
    struct nk_color text_normal;
    struct nk_color text_hover;
    struct nk_color text_active;
    nk_flags text_alignment;
    float color_factor_text;
 
    /* properties */
    float border;
    float rounding;
    struct nk_vec2 padding;
    struct nk_vec2 image_padding;
    struct nk_vec2 touch_padding;
    float disabled_factor;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle userdata);
    void(*draw_end)(struct nk_command_buffer*, nk_handle userdata);
};
 
struct nk_style_toggle {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* cursor */
    struct nk_style_item cursor_normal;
    struct nk_style_item cursor_hover;
 
    /* text */
    struct nk_color text_normal;
    struct nk_color text_hover;
    struct nk_color text_active;
    struct nk_color text_background;
    nk_flags text_alignment;
 
    /* properties */
    struct nk_vec2 padding;
    struct nk_vec2 touch_padding;
    float spacing;
    float border;
    float color_factor;
    float disabled_factor;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_selectable {
    /* background (inactive) */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item pressed;
 
    /* background (active) */
    struct nk_style_item normal_active;
    struct nk_style_item hover_active;
    struct nk_style_item pressed_active;
 
    /* text color (inactive) */
    struct nk_color text_normal;
    struct nk_color text_hover;
    struct nk_color text_pressed;
 
    /* text color (active) */
    struct nk_color text_normal_active;
    struct nk_color text_hover_active;
    struct nk_color text_pressed_active;
    struct nk_color text_background;
    nk_flags text_alignment;
 
    /* properties */
    float rounding;
    struct nk_vec2 padding;
    struct nk_vec2 touch_padding;
    struct nk_vec2 image_padding;
    float color_factor;
    float disabled_factor;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_slider {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* background bar */
    struct nk_color bar_normal;
    struct nk_color bar_hover;
    struct nk_color bar_active;
    struct nk_color bar_filled;
 
    /* cursor */
    struct nk_style_item cursor_normal;
    struct nk_style_item cursor_hover;
    struct nk_style_item cursor_active;
 
    /* properties */
    float border;
    float rounding;
    float bar_height;
    struct nk_vec2 padding;
    struct nk_vec2 spacing;
    struct nk_vec2 cursor_size;
    float color_factor;
    float disabled_factor;
 
    /* optional buttons */
    int show_buttons;
    struct nk_style_button inc_button;
    struct nk_style_button dec_button;
    enum nk_symbol_type inc_symbol;
    enum nk_symbol_type dec_symbol;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_knob {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* knob */
    struct nk_color knob_normal;
    struct nk_color knob_hover;
    struct nk_color knob_active;
    struct nk_color knob_border_color;
 
    /* cursor */
    struct nk_color cursor_normal;
    struct nk_color cursor_hover;
    struct nk_color cursor_active;
 
    /* properties */
    float border;
    float knob_border;
    struct nk_vec2 padding;
    struct nk_vec2 spacing;
    float cursor_width;
    float color_factor;
    float disabled_factor;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_progress {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* cursor */
    struct nk_style_item cursor_normal;
    struct nk_style_item cursor_hover;
    struct nk_style_item cursor_active;
    struct nk_color cursor_border_color;
 
    /* properties */
    float rounding;
    float border;
    float cursor_border;
    float cursor_rounding;
    struct nk_vec2 padding;
    float color_factor;
    float disabled_factor;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_scrollbar {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* cursor */
    struct nk_style_item cursor_normal;
    struct nk_style_item cursor_hover;
    struct nk_style_item cursor_active;
    struct nk_color cursor_border_color;
 
    /* properties */
    float border;
    float rounding;
    float border_cursor;
    float rounding_cursor;
    struct nk_vec2 padding;
    float color_factor;
    float disabled_factor;
 
    /* optional buttons */
    int show_buttons;
    struct nk_style_button inc_button;
    struct nk_style_button dec_button;
    enum nk_symbol_type inc_symbol;
    enum nk_symbol_type dec_symbol;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_edit {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
    struct nk_style_scrollbar scrollbar;
 
    /* cursor  */
    struct nk_color cursor_normal;
    struct nk_color cursor_hover;
    struct nk_color cursor_text_normal;
    struct nk_color cursor_text_hover;
 
    /* text (unselected) */
    struct nk_color text_normal;
    struct nk_color text_hover;
    struct nk_color text_active;
 
    /* text (selected) */
    struct nk_color selected_normal;
    struct nk_color selected_hover;
    struct nk_color selected_text_normal;
    struct nk_color selected_text_hover;
 
    /* properties */
    float border;
    float rounding;
    float cursor_size;
    struct nk_vec2 scrollbar_size;
    struct nk_vec2 padding;
    float row_padding;
    float color_factor;
    float disabled_factor;
};
 
struct nk_style_property {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* text */
    struct nk_color label_normal;
    struct nk_color label_hover;
    struct nk_color label_active;
 
    /* symbols */
    enum nk_symbol_type sym_left;
    enum nk_symbol_type sym_right;
 
    /* properties */
    float border;
    float rounding;
    struct nk_vec2 padding;
    float color_factor;
    float disabled_factor;
 
    struct nk_style_edit edit;
    struct nk_style_button inc_button;
    struct nk_style_button dec_button;
 
    /* optional user callbacks */
    nk_handle userdata;
    void(*draw_begin)(struct nk_command_buffer*, nk_handle);
    void(*draw_end)(struct nk_command_buffer*, nk_handle);
};
 
struct nk_style_chart {
    /* colors */
    struct nk_style_item background;
    struct nk_color border_color;
    struct nk_color selected_color;
    struct nk_color color;
 
    /* properties */
    float border;
    float rounding;
    struct nk_vec2 padding;
    float color_factor;
    float disabled_factor;
    nk_bool show_markers;
};
 
struct nk_style_combo {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
    struct nk_color border_color;
 
    /* label */
    struct nk_color label_normal;
    struct nk_color label_hover;
    struct nk_color label_active;
 
    /* symbol */
    struct nk_color symbol_normal;
    struct nk_color symbol_hover;
    struct nk_color symbol_active;
 
    /* button */
    struct nk_style_button button;
    enum nk_symbol_type sym_normal;
    enum nk_symbol_type sym_hover;
    enum nk_symbol_type sym_active;
 
    /* properties */
    float border;
    float rounding;
    struct nk_vec2 content_padding;
    struct nk_vec2 button_padding;
    struct nk_vec2 spacing;
    float color_factor;
    float disabled_factor;
};
 
struct nk_style_tab {
    /* background */
    struct nk_style_item background;
    struct nk_color border_color;
    struct nk_color text;
 
    /* button */
    struct nk_style_button tab_maximize_button;
    struct nk_style_button tab_minimize_button;
    struct nk_style_button node_maximize_button;
    struct nk_style_button node_minimize_button;
    enum nk_symbol_type sym_minimize;
    enum nk_symbol_type sym_maximize;
 
    /* properties */
    float border;
    float rounding;
    float indent;
    struct nk_vec2 padding;
    struct nk_vec2 spacing;
    float color_factor;
    float disabled_factor;
};
 
enum nk_style_header_align {
    NK_HEADER_LEFT,
    NK_HEADER_RIGHT
};
struct nk_style_window_header {
    /* background */
    struct nk_style_item normal;
    struct nk_style_item hover;
    struct nk_style_item active;
 
    /* button */
    struct nk_style_button close_button;
    struct nk_style_button minimize_button;
    enum nk_symbol_type close_symbol;
    enum nk_symbol_type minimize_symbol;
    enum nk_symbol_type maximize_symbol;
 
    /* title */
    struct nk_color label_normal;
    struct nk_color label_hover;
    struct nk_color label_active;
 
    /* properties */
    enum nk_style_header_align align;
    struct nk_vec2 padding;
    struct nk_vec2 label_padding;
    struct nk_vec2 spacing;
};
 
struct nk_style_window {
    struct nk_style_window_header header;
    struct nk_style_item fixed_background;
    struct nk_color background;
 
    struct nk_color border_color;
    struct nk_color popup_border_color;
    struct nk_color combo_border_color;
    struct nk_color contextual_border_color;
    struct nk_color menu_border_color;
    struct nk_color group_border_color;
    struct nk_color tooltip_border_color;
    struct nk_style_item scaler;
 
    float border;
    float combo_border;
    float contextual_border;
    float menu_border;
    float group_border;
    float tooltip_border;
    float popup_border;
    float min_row_height_padding;
 
    float rounding;
    struct nk_vec2 spacing;
    struct nk_vec2 scrollbar_size;
    struct nk_vec2 min_size;
 
    struct nk_vec2 padding;
    struct nk_vec2 group_padding;
    struct nk_vec2 popup_padding;
    struct nk_vec2 combo_padding;
    struct nk_vec2 contextual_padding;
    struct nk_vec2 menu_padding;
    struct nk_vec2 tooltip_padding;
};
 
struct nk_style {
    const struct nk_user_font *font;
    const struct nk_cursor *cursors[NK_CURSOR_COUNT];
    const struct nk_cursor *cursor_active;
    struct nk_cursor *cursor_last;
    int cursor_visible;
 
    struct nk_style_text text;
    struct nk_style_button button;
    struct nk_style_button contextual_button;
    struct nk_style_button menu_button;
    struct nk_style_toggle option;
    struct nk_style_toggle checkbox;
    struct nk_style_selectable selectable;
    struct nk_style_slider slider;
    struct nk_style_knob knob;
    struct nk_style_progress progress;
    struct nk_style_property property;
    struct nk_style_edit edit;
    struct nk_style_chart chart;
    struct nk_style_scrollbar scrollh;
    struct nk_style_scrollbar scrollv;
    struct nk_style_tab tab;
    struct nk_style_combo combo;
    struct nk_style_window window;
};
 
NK_API struct nk_style_item nk_style_item_color(struct nk_color);
NK_API struct nk_style_item nk_style_item_image(struct nk_image img);
NK_API struct nk_style_item nk_style_item_nine_slice(struct nk_nine_slice slice);
NK_API struct nk_style_item nk_style_item_hide(void);
 
/*==============================================================
 *                          PANEL
 * =============================================================*/
#ifndef NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS
#define NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS 16
#endif
#ifndef NK_CHART_MAX_SLOT
#define NK_CHART_MAX_SLOT 4
#endif
 
enum nk_panel_type {
    NK_PANEL_NONE       = 0,
    NK_PANEL_WINDOW     = NK_FLAG(0),
    NK_PANEL_GROUP      = NK_FLAG(1),
    NK_PANEL_POPUP      = NK_FLAG(2),
    NK_PANEL_CONTEXTUAL = NK_FLAG(4),
    NK_PANEL_COMBO      = NK_FLAG(5),
    NK_PANEL_MENU       = NK_FLAG(6),
    NK_PANEL_TOOLTIP    = NK_FLAG(7)
};
enum nk_panel_set {
    NK_PANEL_SET_NONBLOCK = NK_PANEL_CONTEXTUAL|NK_PANEL_COMBO|NK_PANEL_MENU|NK_PANEL_TOOLTIP,
    NK_PANEL_SET_POPUP = NK_PANEL_SET_NONBLOCK|NK_PANEL_POPUP,
    NK_PANEL_SET_SUB = NK_PANEL_SET_POPUP|NK_PANEL_GROUP
};
 
struct nk_chart_slot {
    enum nk_chart_type type;
    struct nk_color color;
    struct nk_color highlight;
    float min, max, range;
    int count;
    struct nk_vec2 last;
    int index;
    nk_bool show_markers;
};
 
struct nk_chart {
    int slot;
    float x, y, w, h;
    struct nk_chart_slot slots[NK_CHART_MAX_SLOT];
};
 
enum nk_panel_row_layout_type {
    NK_LAYOUT_DYNAMIC_FIXED = 0,
    NK_LAYOUT_DYNAMIC_ROW,
    NK_LAYOUT_DYNAMIC_FREE,
    NK_LAYOUT_DYNAMIC,
    NK_LAYOUT_STATIC_FIXED,
    NK_LAYOUT_STATIC_ROW,
    NK_LAYOUT_STATIC_FREE,
    NK_LAYOUT_STATIC,
    NK_LAYOUT_TEMPLATE,
    NK_LAYOUT_COUNT
};
struct nk_row_layout {
    enum nk_panel_row_layout_type type;
    int index;
    float height;
    float min_height;
    int columns;
    const float *ratio;
    float item_width;
    float item_height;
    float item_offset;
    float filled;
    struct nk_rect item;
    int tree_depth;
    float templates[NK_MAX_LAYOUT_ROW_TEMPLATE_COLUMNS];
};
 
struct nk_popup_buffer {
    nk_size begin;
    nk_size parent;
    nk_size last;
    nk_size end;
    nk_bool active;
};
 
struct nk_menu_state {
    float x, y, w, h;
    struct nk_scroll offset;
};
 
struct nk_panel {
    enum nk_panel_type type;
    nk_flags flags;
    struct nk_rect bounds;
    nk_uint *offset_x;
    nk_uint *offset_y;
    float at_x, at_y, max_x;
    float footer_height;
    float header_height;
    float border;
    unsigned int has_scrolling;
    struct nk_rect clip;
    struct nk_menu_state menu;
    struct nk_row_layout row;
    struct nk_chart chart;
    struct nk_command_buffer *buffer;
    struct nk_panel *parent;
};
 
/*==============================================================
 *                          WINDOW
 * =============================================================*/
#ifndef NK_WINDOW_MAX_NAME
#define NK_WINDOW_MAX_NAME 64
#endif
 
struct nk_table;
enum nk_window_flags {
    NK_WINDOW_PRIVATE       = NK_FLAG(11),
    NK_WINDOW_DYNAMIC       = NK_WINDOW_PRIVATE,                  
    NK_WINDOW_ROM           = NK_FLAG(12),                        
    NK_WINDOW_NOT_INTERACTIVE = NK_WINDOW_ROM|NK_WINDOW_NO_INPUT, 
    NK_WINDOW_HIDDEN        = NK_FLAG(13),                        
    NK_WINDOW_CLOSED        = NK_FLAG(14),                        
    NK_WINDOW_MINIMIZED     = NK_FLAG(15),                        
    NK_WINDOW_REMOVE_ROM    = NK_FLAG(16)                         
};
 
struct nk_popup_state {
    struct nk_window *win;
    enum nk_panel_type type;
    struct nk_popup_buffer buf;
    nk_hash name;
    nk_bool active;
    unsigned combo_count;
    unsigned con_count, con_old;
    unsigned active_con;
    struct nk_rect header;
};
 
struct nk_edit_state {
    nk_hash name;
    unsigned int seq;
    unsigned int old;
    int active, prev;
    int cursor;
    int sel_start;
    int sel_end;
    struct nk_scroll scrollbar;
    unsigned char mode;
    unsigned char single_line;
};
 
struct nk_property_state {
    int active, prev;
    char buffer[NK_MAX_NUMBER_BUFFER];
    int length;
    int cursor;
    int select_start;
    int select_end;
    nk_hash name;
    unsigned int seq;
    unsigned int old;
    int state;
    int prev_state;
    nk_hash prev_name;
    char prev_buffer[NK_MAX_NUMBER_BUFFER];
    int prev_length;
};
 
struct nk_window {
    unsigned int seq;
    nk_hash name;
    char name_string[NK_WINDOW_MAX_NAME];
    nk_flags flags;
 
    struct nk_rect bounds;
    struct nk_scroll scrollbar;
    struct nk_command_buffer buffer;
    struct nk_panel *layout;
    float scrollbar_hiding_timer;
 
    /* persistent widget state */
    struct nk_property_state property;
    struct nk_popup_state popup;
    struct nk_edit_state edit;
    unsigned int scrolled;
    nk_bool widgets_disabled;
 
    struct nk_table *tables;
    unsigned int table_count;
 
    /* window list hooks */
    struct nk_window *next;
    struct nk_window *prev;
    struct nk_window *parent;
};
 
/*==============================================================
 *                          STACK
 * =============================================================*/
#ifndef NK_BUTTON_BEHAVIOR_STACK_SIZE
#define NK_BUTTON_BEHAVIOR_STACK_SIZE 8
#endif
 
#ifndef NK_FONT_STACK_SIZE
#define NK_FONT_STACK_SIZE 8
#endif
 
#ifndef NK_STYLE_ITEM_STACK_SIZE
#define NK_STYLE_ITEM_STACK_SIZE 16
#endif
 
#ifndef NK_FLOAT_STACK_SIZE
#define NK_FLOAT_STACK_SIZE 32
#endif
 
#ifndef NK_VECTOR_STACK_SIZE
#define NK_VECTOR_STACK_SIZE 16
#endif
 
#ifndef NK_FLAGS_STACK_SIZE
#define NK_FLAGS_STACK_SIZE 32
#endif
 
#ifndef NK_COLOR_STACK_SIZE
#define NK_COLOR_STACK_SIZE 32
#endif
 
#define NK_CONFIGURATION_STACK_TYPE(prefix, name, type)\
    struct nk_config_stack_##name##_element {\
        prefix##_##type *address;\
        prefix##_##type old_value;\
    }
#define NK_CONFIG_STACK(type,size)\
    struct nk_config_stack_##type {\
        int head;\
        struct nk_config_stack_##type##_element elements[size];\
    }
 
#define nk_float float
NK_CONFIGURATION_STACK_TYPE(struct nk, style_item, style_item);
NK_CONFIGURATION_STACK_TYPE(nk ,float, float);
NK_CONFIGURATION_STACK_TYPE(struct nk, vec2, vec2);
NK_CONFIGURATION_STACK_TYPE(nk ,flags, flags);
NK_CONFIGURATION_STACK_TYPE(struct nk, color, color);
NK_CONFIGURATION_STACK_TYPE(const struct nk, user_font, user_font*);
NK_CONFIGURATION_STACK_TYPE(enum nk, button_behavior, button_behavior);
 
NK_CONFIG_STACK(style_item, NK_STYLE_ITEM_STACK_SIZE);
NK_CONFIG_STACK(float, NK_FLOAT_STACK_SIZE);
NK_CONFIG_STACK(vec2, NK_VECTOR_STACK_SIZE);
NK_CONFIG_STACK(flags, NK_FLAGS_STACK_SIZE);
NK_CONFIG_STACK(color, NK_COLOR_STACK_SIZE);
NK_CONFIG_STACK(user_font, NK_FONT_STACK_SIZE);
NK_CONFIG_STACK(button_behavior, NK_BUTTON_BEHAVIOR_STACK_SIZE);
 
struct nk_configuration_stacks {
    struct nk_config_stack_style_item style_items;
    struct nk_config_stack_float floats;
    struct nk_config_stack_vec2 vectors;
    struct nk_config_stack_flags flags;
    struct nk_config_stack_color colors;
    struct nk_config_stack_user_font fonts;
    struct nk_config_stack_button_behavior button_behaviors;
};
 
/*==============================================================
 *                          CONTEXT
 * =============================================================*/
#define NK_VALUE_PAGE_CAPACITY \
    (((NK_MAX(sizeof(struct nk_window),sizeof(struct nk_panel)) / sizeof(nk_uint))) / 2)
 
struct nk_table {
    unsigned int seq;
    unsigned int size;
    nk_hash keys[NK_VALUE_PAGE_CAPACITY];
    nk_uint values[NK_VALUE_PAGE_CAPACITY];
    struct nk_table *next, *prev;
};
 
union nk_page_data {
    struct nk_table tbl;
    struct nk_panel pan;
    struct nk_window win;
};
 
struct nk_page_element {
    union nk_page_data data;
    struct nk_page_element *next;
    struct nk_page_element *prev;
};
 
struct nk_page {
    unsigned int size;
    struct nk_page *next;
    struct nk_page_element win[1];
};
 
struct nk_pool {
    struct nk_allocator alloc;
    enum nk_allocation_type type;
    unsigned int page_count;
    struct nk_page *pages;
    struct nk_page_element *freelist;
    unsigned capacity;
    nk_size size;
    nk_size cap;
};
 
struct nk_context {
/* public: can be accessed freely */
    struct nk_input input;
    struct nk_style style;
    struct nk_buffer memory;
    struct nk_clipboard clip;
    nk_flags last_widget_state;
    enum nk_button_behavior button_behavior;
    struct nk_configuration_stacks stacks;
    float delta_time_seconds;
 
/* private:
    should only be accessed if you
    know what you are doing */
#ifdef NK_INCLUDE_VERTEX_BUFFER_OUTPUT
    struct nk_draw_list draw_list;
#endif
#ifdef NK_INCLUDE_COMMAND_USERDATA
    nk_handle userdata;
#endif
    struct nk_text_edit text_edit;
    struct nk_command_buffer overlay;
 
    int build;
    int use_pool;
    struct nk_pool pool;
    struct nk_window *begin;
    struct nk_window *end;
    struct nk_window *active;
    struct nk_window *current;
    struct nk_page_element *freelist;
    unsigned int count;
    unsigned int seq;
};
 
/* ==============================================================
 *                          MATH
 * =============================================================== */
#define NK_PI 3.141592654f
#define NK_PI_HALF 1.570796326f
#define NK_UTF_INVALID 0xFFFD
#define NK_MAX_FLOAT_PRECISION 2
 
#define NK_UNUSED(x) ((void)(x))
#define NK_SATURATE(x) (NK_MAX(0, NK_MIN(1.0f, x)))
#define NK_LEN(a) (sizeof(a)/sizeof(a)[0])
#define NK_ABS(a) (((a) < 0) ? -(a) : (a))
#define NK_BETWEEN(x, a, b) ((a) <= (x) && (x) < (b))
#define NK_INBOX(px, py, x, y, w, h)\
    (NK_BETWEEN(px,x,x+w) && NK_BETWEEN(py,y,y+h))
#define NK_INTERSECT(x0, y0, w0, h0, x1, y1, w1, h1) \
    ((x1 < (x0 + w0)) && (x0 < (x1 + w1)) && \
    (y1 < (y0 + h0)) && (y0 < (y1 + h1)))
#define NK_CONTAINS(x, y, w, h, bx, by, bw, bh)\
    (NK_INBOX(x,y, bx, by, bw, bh) && NK_INBOX(x+w,y+h, bx, by, bw, bh))
 
#define nk_vec2_sub(a, b) nk_vec2((a).x - (b).x, (a).y - (b).y)
#define nk_vec2_add(a, b) nk_vec2((a).x + (b).x, (a).y + (b).y)
#define nk_vec2_len_sqr(a) ((a).x*(a).x+(a).y*(a).y)
#define nk_vec2_muls(a, t) nk_vec2((a).x * (t), (a).y * (t))
 
#define nk_ptr_add(t, p, i) ((t*)((void*)((nk_byte*)(p) + (i))))
#define nk_ptr_add_const(t, p, i) ((const t*)((const void*)((const nk_byte*)(p) + (i))))
#define nk_zero_struct(s) nk_zero(&s, sizeof(s))
 
/* ==============================================================
 *                          ALIGNMENT
 * =============================================================== */
/* Pointer to Integer type conversion for pointer alignment */
#if defined(__PTRDIFF_TYPE__) /* This case should work for GCC*/
# define NK_UINT_TO_PTR(x) ((void*)(__PTRDIFF_TYPE__)(x))
# define NK_PTR_TO_UINT(x) ((nk_size)(__PTRDIFF_TYPE__)(x))
#elif !defined(__GNUC__) /* works for compilers other than LLVM */
# define NK_UINT_TO_PTR(x) ((void*)&((char*)0)[x])
# define NK_PTR_TO_UINT(x) ((nk_size)(((char*)x)-(char*)0))
#elif defined(NK_USE_FIXED_TYPES) /* used if we have <stdint.h> */
# define NK_UINT_TO_PTR(x) ((void*)(uintptr_t)(x))
# define NK_PTR_TO_UINT(x) ((uintptr_t)(x))
#else /* generates warning but works */
# define NK_UINT_TO_PTR(x) ((void*)(x))
# define NK_PTR_TO_UINT(x) ((nk_size)(x))
#endif
 
#define NK_ALIGN_PTR(x, mask)\
    (NK_UINT_TO_PTR((NK_PTR_TO_UINT((nk_byte*)(x) + (mask-1)) & ~(mask-1))))
#define NK_ALIGN_PTR_BACK(x, mask)\
    (NK_UINT_TO_PTR((NK_PTR_TO_UINT((nk_byte*)(x)) & ~(mask-1))))
 
#if ((defined(__GNUC__) && __GNUC__ >= 4) || defined(__clang__)) && !defined(EMSCRIPTEN)
#define NK_OFFSETOF(st,m) (__builtin_offsetof(st,m))
#else
#define NK_OFFSETOF(st,m) ((nk_ptr)&(((st*)0)->m))
#endif
 
#ifdef __cplusplus
}
#endif
 
#ifdef __cplusplus
template<typename T> struct nk_alignof;
template<typename T, int size_diff> struct nk_helper{enum {value = size_diff};};
template<typename T> struct nk_helper<T,0>{enum {value = nk_alignof<T>::value};};
template<typename T> struct nk_alignof{struct Big {T x; char c;}; enum {
    diff = sizeof(Big) - sizeof(T), value = nk_helper<Big, diff>::value};};
#define NK_ALIGNOF(t) (nk_alignof<t>::value)
#else
#define NK_ALIGNOF(t) NK_OFFSETOF(struct {char c; t _h;}, _h)
#endif
 
#define NK_CONTAINER_OF(ptr,type,member)\
    (type*)((void*)((char*)(1 ? (ptr): &((type*)0)->member) - NK_OFFSETOF(type, member)))
 
 
 
#endif /* NK_NUKLEAR_H_ */