#ifndef NK_INTERNAL_H #define NK_INTERNAL_H #ifndef NK_POOL_DEFAULT_CAPACITY #define NK_POOL_DEFAULT_CAPACITY 16 #endif #ifndef NK_DEFAULT_COMMAND_BUFFER_SIZE #define NK_DEFAULT_COMMAND_BUFFER_SIZE (4*1024) #endif #ifndef NK_BUFFER_DEFAULT_INITIAL_SIZE #define NK_BUFFER_DEFAULT_INITIAL_SIZE (4*1024) #endif /* standard library headers */ #ifdef NK_INCLUDE_DEFAULT_ALLOCATOR #include /* malloc, free */ #endif #ifdef NK_INCLUDE_STANDARD_IO #include /* fopen, fclose,... */ #endif #ifdef NK_INCLUDE_STANDARD_VARARGS #include /* valist, va_start, va_end, ... */ #endif #ifndef NK_ASSERT #include #define NK_ASSERT(expr) assert(expr) #endif #ifndef NK_MEMSET #define NK_MEMSET nk_memset #endif #ifndef NK_MEMCPY #define NK_MEMCPY nk_memcopy #endif #ifndef NK_SQRT #define NK_SQRT nk_sqrt #endif #ifndef NK_SIN #define NK_SIN nk_sin #endif #ifndef NK_COS #define NK_COS nk_cos #endif #ifndef NK_STRTOD #define NK_STRTOD nk_strtod #endif #ifndef NK_DTOA #define NK_DTOA nk_dtoa #endif #define NK_DEFAULT (-1) #ifndef NK_VSNPRINTF /* If your compiler does support `vsnprintf` I would highly recommend * defining this to vsnprintf instead since `vsprintf` is basically * unbelievable unsafe and should *NEVER* be used. But I have to support * it since C89 only provides this unsafe version. */ #if (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) ||\ (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ (defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200112L)) ||\ (defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500)) ||\ defined(_ISOC99_SOURCE) || defined(_BSD_SOURCE) #define NK_VSNPRINTF(s,n,f,a) vsnprintf(s,n,f,a) #else #define NK_VSNPRINTF(s,n,f,a) vsprintf(s,f,a) #endif #endif #define NK_SCHAR_MIN (-127) #define NK_SCHAR_MAX 127 #define NK_UCHAR_MIN 0 #define NK_UCHAR_MAX 256 #define NK_SSHORT_MIN (-32767) #define NK_SSHORT_MAX 32767 #define NK_USHORT_MIN 0 #define NK_USHORT_MAX 65535 #define NK_SINT_MIN (-2147483647) #define NK_SINT_MAX 2147483647 #define NK_UINT_MIN 0 #define NK_UINT_MAX 4294967295u /* 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_size) >= sizeof(void*)); NK_STATIC_ASSERT(sizeof(nk_ptr) == sizeof(void*)); NK_STATIC_ASSERT(sizeof(nk_flags) >= 4); NK_STATIC_ASSERT(sizeof(nk_rune) >= 4); NK_STATIC_ASSERT(sizeof(nk_ushort) == 2); NK_STATIC_ASSERT(sizeof(nk_short) == 2); NK_STATIC_ASSERT(sizeof(nk_uint) == 4); NK_STATIC_ASSERT(sizeof(nk_int) == 4); NK_STATIC_ASSERT(sizeof(nk_byte) == 1); NK_GLOBAL const struct nk_rect nk_null_rect = {-8192.0f, -8192.0f, 16384, 16384}; #define NK_FLOAT_PRECISION 0.00000000000001 NK_GLOBAL const struct nk_color nk_red = {255,0,0,255}; NK_GLOBAL const struct nk_color nk_green = {0,255,0,255}; NK_GLOBAL const struct nk_color nk_blue = {0,0,255,255}; NK_GLOBAL const struct nk_color nk_white = {255,255,255,255}; NK_GLOBAL const struct nk_color nk_black = {0,0,0,255}; NK_GLOBAL const struct nk_color nk_yellow = {255,255,0,255}; /* widget */ #define nk_widget_state_reset(s)\ if ((*(s)) & NK_WIDGET_STATE_MODIFIED)\ (*(s)) = NK_WIDGET_STATE_INACTIVE|NK_WIDGET_STATE_MODIFIED;\ else (*(s)) = NK_WIDGET_STATE_INACTIVE; /* math */ NK_LIB float nk_inv_sqrt(float n); NK_LIB float nk_sqrt(float x); NK_LIB float nk_sin(float x); NK_LIB float nk_cos(float x); NK_LIB nk_uint nk_round_up_pow2(nk_uint v); NK_LIB struct nk_rect nk_shrink_rect(struct nk_rect r, float amount); NK_LIB struct nk_rect nk_pad_rect(struct nk_rect r, struct nk_vec2 pad); NK_LIB void nk_unify(struct nk_rect *clip, const struct nk_rect *a, float x0, float y0, float x1, float y1); NK_LIB double nk_pow(double x, int n); NK_LIB int nk_ifloord(double x); NK_LIB int nk_ifloorf(float x); NK_LIB int nk_iceilf(float x); NK_LIB int nk_log10(double n); /* util */ enum {NK_DO_NOT_STOP_ON_NEW_LINE, NK_STOP_ON_NEW_LINE}; NK_LIB int nk_is_lower(int c); NK_LIB int nk_is_upper(int c); NK_LIB int nk_to_upper(int c); NK_LIB int nk_to_lower(int c); NK_LIB void* nk_memcopy(void *dst, const void *src, nk_size n); NK_LIB void nk_memset(void *ptr, int c0, nk_size size); NK_LIB void nk_zero(void *ptr, nk_size size); NK_LIB char *nk_itoa(char *s, long n); NK_LIB int nk_string_float_limit(char *string, int prec); NK_LIB char *nk_dtoa(char *s, double n); NK_LIB int nk_text_clamp(const struct nk_user_font *font, const char *text, int text_len, float space, int *glyphs, float *text_width, nk_rune *sep_list, int sep_count); NK_LIB struct nk_vec2 nk_text_calculate_text_bounds(const struct nk_user_font *font, const char *begin, int byte_len, float row_height, const char **remaining, struct nk_vec2 *out_offset, int *glyphs, int op); #ifdef NK_INCLUDE_STANDARD_VARARGS NK_LIB int nk_strfmt(char *buf, int buf_size, const char *fmt, va_list args); #endif #ifdef NK_INCLUDE_STANDARD_IO NK_LIB char *nk_file_load(const char* path, nk_size* siz, struct nk_allocator *alloc); #endif /* buffer */ #ifdef NK_INCLUDE_DEFAULT_ALLOCATOR NK_LIB void* nk_malloc(nk_handle unused, void *old,nk_size size); NK_LIB void nk_mfree(nk_handle unused, void *ptr); #endif NK_LIB void* nk_buffer_align(void *unaligned, nk_size align, nk_size *alignment, enum nk_buffer_allocation_type type); NK_LIB void* nk_buffer_alloc(struct nk_buffer *b, enum nk_buffer_allocation_type type, nk_size size, nk_size align); NK_LIB void* nk_buffer_realloc(struct nk_buffer *b, nk_size capacity, nk_size *size); /* draw */ NK_LIB void nk_command_buffer_init(struct nk_command_buffer *cb, struct nk_buffer *b, enum nk_command_clipping clip); NK_LIB void nk_command_buffer_reset(struct nk_command_buffer *b); NK_LIB void* nk_command_buffer_push(struct nk_command_buffer* b, enum nk_command_type t, nk_size size); NK_LIB void nk_draw_symbol(struct nk_command_buffer *out, enum nk_symbol_type type, struct nk_rect content, struct nk_color background, struct nk_color foreground, float border_width, const struct nk_user_font *font); /* buffering */ NK_LIB void nk_start_buffer(struct nk_context *ctx, struct nk_command_buffer *b); NK_LIB void nk_start(struct nk_context *ctx, struct nk_window *win); NK_LIB void nk_start_popup(struct nk_context *ctx, struct nk_window *win); NK_LIB void nk_finish_popup(struct nk_context *ctx, struct nk_window*); NK_LIB void nk_finish_buffer(struct nk_context *ctx, struct nk_command_buffer *b); NK_LIB void nk_finish(struct nk_context *ctx, struct nk_window *w); NK_LIB void nk_build(struct nk_context *ctx); /* text editor */ NK_LIB void nk_textedit_clear_state(struct nk_text_edit *state, enum nk_text_edit_type type, nk_plugin_filter filter); NK_LIB void nk_textedit_click(struct nk_text_edit *state, float x, float y, const struct nk_user_font *font, float row_height); NK_LIB void nk_textedit_drag(struct nk_text_edit *state, float x, float y, const struct nk_user_font *font, float row_height); NK_LIB void nk_textedit_key(struct nk_text_edit *state, enum nk_keys key, int shift_mod, const struct nk_user_font *font, float row_height); /* window */ enum nk_window_insert_location { NK_INSERT_BACK, /* inserts window into the back of list (front of screen) */ NK_INSERT_FRONT /* inserts window into the front of list (back of screen) */ }; NK_LIB void *nk_create_window(struct nk_context *ctx); NK_LIB void nk_remove_window(struct nk_context*, struct nk_window*); NK_LIB void nk_free_window(struct nk_context *ctx, struct nk_window *win); NK_LIB struct nk_window *nk_find_window(struct nk_context *ctx, nk_hash hash, const char *name); NK_LIB void nk_insert_window(struct nk_context *ctx, struct nk_window *win, enum nk_window_insert_location loc); /* pool */ NK_LIB void nk_pool_init(struct nk_pool *pool, struct nk_allocator *alloc, unsigned int capacity); NK_LIB void nk_pool_free(struct nk_pool *pool); NK_LIB void nk_pool_init_fixed(struct nk_pool *pool, void *memory, nk_size size); NK_LIB struct nk_page_element *nk_pool_alloc(struct nk_pool *pool); /* page-element */ NK_LIB struct nk_page_element* nk_create_page_element(struct nk_context *ctx); NK_LIB void nk_link_page_element_into_freelist(struct nk_context *ctx, struct nk_page_element *elem); NK_LIB void nk_free_page_element(struct nk_context *ctx, struct nk_page_element *elem); /* table */ NK_LIB struct nk_table* nk_create_table(struct nk_context *ctx); NK_LIB void nk_remove_table(struct nk_window *win, struct nk_table *tbl); NK_LIB void nk_free_table(struct nk_context *ctx, struct nk_table *tbl); NK_LIB void nk_push_table(struct nk_window *win, struct nk_table *tbl); NK_LIB nk_uint *nk_add_value(struct nk_context *ctx, struct nk_window *win, nk_hash name, nk_uint value); NK_LIB nk_uint *nk_find_value(struct nk_window *win, nk_hash name); /* panel */ NK_LIB void *nk_create_panel(struct nk_context *ctx); NK_LIB void nk_free_panel(struct nk_context*, struct nk_panel *pan); NK_LIB int nk_panel_has_header(nk_flags flags, const char *title); NK_LIB struct nk_vec2 nk_panel_get_padding(const struct nk_style *style, enum nk_panel_type type); NK_LIB float nk_panel_get_border(const struct nk_style *style, nk_flags flags, enum nk_panel_type type); NK_LIB struct nk_color nk_panel_get_border_color(const struct nk_style *style, enum nk_panel_type type); NK_LIB int nk_panel_is_sub(enum nk_panel_type type); NK_LIB int nk_panel_is_nonblock(enum nk_panel_type type); NK_LIB int nk_panel_begin(struct nk_context *ctx, const char *title, enum nk_panel_type panel_type); NK_LIB void nk_panel_end(struct nk_context *ctx); /* layout */ NK_LIB float nk_layout_row_calculate_usable_space(const struct nk_style *style, enum nk_panel_type type, float total_space, int columns); NK_LIB void nk_panel_layout(const struct nk_context *ctx, struct nk_window *win, float height, int cols); NK_LIB void nk_row_layout(struct nk_context *ctx, enum nk_layout_format fmt, float height, int cols, int width); NK_LIB void nk_panel_alloc_row(const struct nk_context *ctx, struct nk_window *win); NK_LIB void nk_layout_widget_space(struct nk_rect *bounds, const struct nk_context *ctx, struct nk_window *win, int modify); NK_LIB void nk_panel_alloc_space(struct nk_rect *bounds, const struct nk_context *ctx); NK_LIB void nk_layout_peek(struct nk_rect *bounds, struct nk_context *ctx); /* popup */ NK_LIB int nk_nonblock_begin(struct nk_context *ctx, nk_flags flags, struct nk_rect body, struct nk_rect header, enum nk_panel_type panel_type); /* text */ struct nk_text { struct nk_vec2 padding; struct nk_color background; struct nk_color text; }; NK_LIB void nk_widget_text(struct nk_command_buffer *o, struct nk_rect b, const char *string, int len, const struct nk_text *t, nk_flags a, const struct nk_user_font *f); NK_LIB void nk_widget_text_wrap(struct nk_command_buffer *o, struct nk_rect b, const char *string, int len, const struct nk_text *t, const struct nk_user_font *f); /* button */ NK_LIB int nk_button_behavior(nk_flags *state, struct nk_rect r, const struct nk_input *i, enum nk_button_behavior behavior); NK_LIB const struct nk_style_item* nk_draw_button(struct nk_command_buffer *out, const struct nk_rect *bounds, nk_flags state, const struct nk_style_button *style); NK_LIB int nk_do_button(nk_flags *state, struct nk_command_buffer *out, struct nk_rect r, const struct nk_style_button *style, const struct nk_input *in, enum nk_button_behavior behavior, struct nk_rect *content); NK_LIB void nk_draw_button_text(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, const char *txt, int len, nk_flags text_alignment, const struct nk_user_font *font); NK_LIB int nk_do_button_text(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *string, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_input *in, const struct nk_user_font *font); NK_LIB void nk_draw_button_symbol(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, enum nk_symbol_type type, const struct nk_user_font *font); NK_LIB int nk_do_button_symbol(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, enum nk_symbol_type symbol, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_input *in, const struct nk_user_font *font); NK_LIB void nk_draw_button_image(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *content, nk_flags state, const struct nk_style_button *style, const struct nk_image *img); NK_LIB int nk_do_button_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, struct nk_image img, enum nk_button_behavior b, const struct nk_style_button *style, const struct nk_input *in); NK_LIB void nk_draw_button_text_symbol(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *label, const struct nk_rect *symbol, nk_flags state, const struct nk_style_button *style, const char *str, int len, enum nk_symbol_type type, const struct nk_user_font *font); NK_LIB int nk_do_button_text_symbol(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, enum nk_symbol_type symbol, const char *str, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_user_font *font, const struct nk_input *in); NK_LIB void nk_draw_button_text_image(struct nk_command_buffer *out, const struct nk_rect *bounds, const struct nk_rect *label, const struct nk_rect *image, nk_flags state, const struct nk_style_button *style, const char *str, int len, const struct nk_user_font *font, const struct nk_image *img); NK_LIB int nk_do_button_text_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, struct nk_image img, const char* str, int len, nk_flags align, enum nk_button_behavior behavior, const struct nk_style_button *style, const struct nk_user_font *font, const struct nk_input *in); /* toggle */ enum nk_toggle_type { NK_TOGGLE_CHECK, NK_TOGGLE_OPTION }; NK_LIB int nk_toggle_behavior(const struct nk_input *in, struct nk_rect select, nk_flags *state, int active); NK_LIB void nk_draw_checkbox(struct nk_command_buffer *out, nk_flags state, const struct nk_style_toggle *style, int active, const struct nk_rect *label, const struct nk_rect *selector, const struct nk_rect *cursors, const char *string, int len, const struct nk_user_font *font); NK_LIB void nk_draw_option(struct nk_command_buffer *out, nk_flags state, const struct nk_style_toggle *style, int active, const struct nk_rect *label, const struct nk_rect *selector, const struct nk_rect *cursors, const char *string, int len, const struct nk_user_font *font); NK_LIB int nk_do_toggle(nk_flags *state, struct nk_command_buffer *out, struct nk_rect r, int *active, const char *str, int len, enum nk_toggle_type type, const struct nk_style_toggle *style, const struct nk_input *in, const struct nk_user_font *font); /* progress */ NK_LIB nk_size nk_progress_behavior(nk_flags *state, struct nk_input *in, struct nk_rect r, struct nk_rect cursor, nk_size max, nk_size value, int modifiable); NK_LIB void nk_draw_progress(struct nk_command_buffer *out, nk_flags state, const struct nk_style_progress *style, const struct nk_rect *bounds, const struct nk_rect *scursor, nk_size value, nk_size max); NK_LIB nk_size nk_do_progress(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, nk_size value, nk_size max, int modifiable, const struct nk_style_progress *style, struct nk_input *in); /* slider */ NK_LIB float nk_slider_behavior(nk_flags *state, struct nk_rect *logical_cursor, struct nk_rect *visual_cursor, struct nk_input *in, struct nk_rect bounds, float slider_min, float slider_max, float slider_value, float slider_step, float slider_steps); NK_LIB void nk_draw_slider(struct nk_command_buffer *out, nk_flags state, const struct nk_style_slider *style, const struct nk_rect *bounds, const struct nk_rect *visual_cursor, float min, float value, float max); NK_LIB float nk_do_slider(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, float min, float val, float max, float step, const struct nk_style_slider *style, struct nk_input *in, const struct nk_user_font *font); /* scrollbar */ NK_LIB float nk_scrollbar_behavior(nk_flags *state, struct nk_input *in, int has_scrolling, const struct nk_rect *scroll, const struct nk_rect *cursor, const struct nk_rect *empty0, const struct nk_rect *empty1, float scroll_offset, float target, float scroll_step, enum nk_orientation o); NK_LIB void nk_draw_scrollbar(struct nk_command_buffer *out, nk_flags state, const struct nk_style_scrollbar *style, const struct nk_rect *bounds, const struct nk_rect *scroll); NK_LIB float nk_do_scrollbarv(nk_flags *state, struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling, float offset, float target, float step, float button_pixel_inc, const struct nk_style_scrollbar *style, struct nk_input *in, const struct nk_user_font *font); NK_LIB float nk_do_scrollbarh(nk_flags *state, struct nk_command_buffer *out, struct nk_rect scroll, int has_scrolling, float offset, float target, float step, float button_pixel_inc, const struct nk_style_scrollbar *style, struct nk_input *in, const struct nk_user_font *font); /* selectable */ NK_LIB void nk_draw_selectable(struct nk_command_buffer *out, nk_flags state, const struct nk_style_selectable *style, int active, const struct nk_rect *bounds, const struct nk_rect *icon, const struct nk_image *img, enum nk_symbol_type sym, const char *string, int len, nk_flags align, const struct nk_user_font *font); NK_LIB int nk_do_selectable(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *str, int len, nk_flags align, int *value, const struct nk_style_selectable *style, const struct nk_input *in, const struct nk_user_font *font); NK_LIB int nk_do_selectable_image(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, const char *str, int len, nk_flags align, int *value, const struct nk_image *img, const struct nk_style_selectable *style, const struct nk_input *in, const struct nk_user_font *font); /* edit */ NK_LIB void nk_edit_draw_text(struct nk_command_buffer *out, const struct nk_style_edit *style, float pos_x, float pos_y, float x_offset, const char *text, int byte_len, float row_height, const struct nk_user_font *font, struct nk_color background, struct nk_color foreground, int is_selected); NK_LIB nk_flags nk_do_edit(nk_flags *state, struct nk_command_buffer *out, struct nk_rect bounds, nk_flags flags, nk_plugin_filter filter, struct nk_text_edit *edit, const struct nk_style_edit *style, struct nk_input *in, const struct nk_user_font *font); /* color-picker */ NK_LIB int nk_color_picker_behavior(nk_flags *state, const struct nk_rect *bounds, const struct nk_rect *matrix, const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar, struct nk_colorf *color, const struct nk_input *in); NK_LIB void nk_draw_color_picker(struct nk_command_buffer *o, const struct nk_rect *matrix, const struct nk_rect *hue_bar, const struct nk_rect *alpha_bar, struct nk_colorf col); NK_LIB int nk_do_color_picker(nk_flags *state, struct nk_command_buffer *out, struct nk_colorf *col, enum nk_color_format fmt, struct nk_rect bounds, struct nk_vec2 padding, const struct nk_input *in, const struct nk_user_font *font); /* property */ enum nk_property_status { NK_PROPERTY_DEFAULT, NK_PROPERTY_EDIT, NK_PROPERTY_DRAG }; enum nk_property_filter { NK_FILTER_INT, NK_FILTER_FLOAT }; enum nk_property_kind { NK_PROPERTY_INT, NK_PROPERTY_FLOAT, NK_PROPERTY_DOUBLE }; union nk_property { int i; float f; double d; }; struct nk_property_variant { enum nk_property_kind kind; union nk_property value; union nk_property min_value; union nk_property max_value; union nk_property step; }; NK_LIB struct nk_property_variant nk_property_variant_int(int value, int min_value, int max_value, int step); NK_LIB struct nk_property_variant nk_property_variant_float(float value, float min_value, float max_value, float step); NK_LIB struct nk_property_variant nk_property_variant_double(double value, double min_value, double max_value, double step); NK_LIB void nk_drag_behavior(nk_flags *state, const struct nk_input *in, struct nk_rect drag, struct nk_property_variant *variant, float inc_per_pixel); NK_LIB void nk_property_behavior(nk_flags *ws, const struct nk_input *in, struct nk_rect property, struct nk_rect label, struct nk_rect edit, struct nk_rect empty, int *state, struct nk_property_variant *variant, float inc_per_pixel); NK_LIB void nk_draw_property(struct nk_command_buffer *out, const struct nk_style_property *style, const struct nk_rect *bounds, const struct nk_rect *label, nk_flags state, const char *name, int len, const struct nk_user_font *font); NK_LIB void nk_do_property(nk_flags *ws, struct nk_command_buffer *out, struct nk_rect property, const char *name, struct nk_property_variant *variant, float inc_per_pixel, char *buffer, int *len, int *state, int *cursor, int *select_begin, int *select_end, const struct nk_style_property *style, enum nk_property_filter filter, struct nk_input *in, const struct nk_user_font *font, struct nk_text_edit *text_edit, enum nk_button_behavior behavior); NK_LIB void nk_property(struct nk_context *ctx, const char *name, struct nk_property_variant *variant, float inc_per_pixel, const enum nk_property_filter filter); #endif