149 lines
4.6 KiB
C
149 lines
4.6 KiB
C
/*
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Copyright (c) 2015
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vurtun <polygone@gmx.net>
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MIT licence
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*/
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#ifndef TINY_GUI_H_
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#define TINY_GUI_H_
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#define GUI_UTF_SIZE 4
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#define GUI_INPUT_MAX 8
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typedef int gui_int;
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typedef short gui_short;
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typedef long gui_long;
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typedef int gui_bool;
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typedef unsigned int gui_flags;
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typedef unsigned char gui_char;
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typedef float gui_float;
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typedef void* gui_texture;
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typedef unsigned char gui_byte;
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typedef unsigned long gui_flag;
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typedef unsigned long gui_size;
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typedef gui_char gui_glyph[GUI_UTF_SIZE];
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enum {gui_false, gui_true};
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struct gui_color {gui_byte r,g,b,a;};
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struct gui_texCoord {gui_float u,v;};
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struct gui_vec2 {gui_float x,y;};
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struct gui_rect {gui_float x,y,w,h;};
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struct gui_vertex {
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struct gui_vec2 pos;
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struct gui_texCoord uv;
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struct gui_color color;
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};
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struct gui_draw_command {
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struct gui_vertex *vertexes;
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gui_size vertex_count;
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gui_size vertex_write;
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struct gui_rect clip_rect;
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gui_texture texture;
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};
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struct gui_draw_list {
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struct gui_draw_command *begin;
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struct gui_draw_command *end;
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gui_size vertex_count;
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gui_byte *memory;
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gui_size size;
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gui_size needed;
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};
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enum gui_keys {
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GUI_KEY_SHIFT,
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GUI_KEY_CTRL,
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GUI_KEY_DEL,
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GUI_KEY_ENTER,
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GUI_KEY_BACKSPACE,
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GUI_KEY_ESCAPE,
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GUI_KEY_SPACE,
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GUI_KEY_MAX
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};
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struct gui_input {
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gui_bool keys[GUI_KEY_MAX];
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gui_glyph text[GUI_INPUT_MAX];
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gui_size glyph_count;
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struct gui_vec2 mouse_pos;
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struct gui_vec2 mouse_prev;
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struct gui_vec2 mouse_delta;
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gui_bool mouse_down;
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gui_int mouse_clicked;
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struct gui_vec2 mouse_clicked_pos;
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};
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struct gui_font_glyph {
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gui_int code;
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gui_short xadvance;
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gui_short width, height;
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gui_float xoff, yoff;
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struct gui_texCoord uv[2];
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};
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struct gui_font {
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gui_short height;
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gui_float scale;
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gui_texture texture;
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struct gui_vec2 tex_size;
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struct gui_font_glyph *glyphes;
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gui_long glyph_count;
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const struct gui_font_glyph *fallback;
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};
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enum gui_panel_flags {
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GUI_PANEL_HEADER = 0x01,
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GUI_PANEL_MINIMIZABLE = 0x02,
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GUI_PANEL_CLOSEABLE = 0x04,
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GUI_PANEL_SCALEABLE = 0x08,
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GUI_PANEL_SCROLLBAR = 0x10
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};
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struct gui_panel {
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gui_flags flags;
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gui_int at_x, at_y;
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};
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void gui_input_begin(struct gui_input *in);
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void gui_input_motion(struct gui_input *in, gui_int x, gui_int y);
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void gui_input_key(struct gui_input *in, enum gui_keys key, gui_int down);
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void gui_input_button(struct gui_input *in, gui_int x, gui_int y, gui_int down);
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void gui_input_char(struct gui_input *in, gui_glyph glyph);
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void gui_input_end(struct gui_input *in);
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void gui_begin(struct gui_draw_list *list, gui_byte *memory, gui_size size);
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gui_size gui_end(struct gui_draw_list *list);
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const struct gui_draw_command *gui_next(const struct gui_draw_list *list,
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const struct gui_draw_command*);
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gui_int gui_button(struct gui_draw_list *list, const struct gui_input *in,
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const struct gui_font *font,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h, gui_int pad,
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const char *str, gui_int len);
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gui_int gui_toggle(struct gui_draw_list *list, const struct gui_input *in,
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const struct gui_font *font,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h, gui_int pad,
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const char *str, gui_int len, gui_int active);
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gui_int gui_slider(struct gui_draw_list *list, const struct gui_input *in,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h, gui_int pad,
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gui_float min, gui_float v, gui_float max, gui_float step);
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gui_int gui_progress(struct gui_draw_list *list, const struct gui_input *in,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h, gui_int pad,
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gui_size cur, gui_size max, gui_bool modifyable);
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gui_int gui_scroll(struct gui_draw_list *list, const struct gui_input *in,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h,
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gui_int offset, gui_int dst);
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gui_int gui_input(struct gui_draw_list *list, const struct gui_input *in,
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const struct gui_font *font,
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struct gui_color bg, struct gui_color fg,
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gui_int x, gui_int y, gui_int w, gui_int h,
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gui_char *buffer, gui_int *len, gui_bool active);
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#endif
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