draw.h

   1 /* See LICENSE file for copyright and license details. */
   2
   3 struct _XCol {
   4         unsigned long rgb;
   5 };
   6 typedef struct _XCol Col;
   7
   8 struct _XFont {
   9         int ascent;
  10         int descent;
  11         unsigned int h;
  12         XFontSet set;
  13         XFontStruct *xfont;
  14 };
  15 typedef struct _XFont Fnt;
  16 /* X11 types - end */
  17
  18 typedef struct {
  19         unsigned int w;
  20         unsigned int h;
  21         int x;
  22         int y;
  23         int xOff;
  24         int yOff;
  25 } TextExtents;
  26
  27
  28 /* X11 types - begin */
  29 typedef struct _XDraw Draw;
  30 struct _XDraw {
  31         unsigned int w, h;
  32         Display *dpy;
  33         int screen;
  34         Window win;
  35         Drawable drawable;
  36         GC gc;
  37         Col *fg;
  38         Col *bg;
  39         Fnt *font;
  40 };
  41
  42 /* Drawable abstraction */
  43 Draw *draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h);
  44 void draw_resize(Draw *draw, unsigned int w, unsigned int h);
  45 void draw_free(Draw *draw);
  46
  47 /* Fnt abstraction */
  48 Fnt *draw_font_create(Draw *draw, const char *fontname);
  49 void draw_font_free(Draw *draw, Fnt *font);
  50
  51 /* Colour abstraction */
  52 Col *draw_col_create(Draw *draw, const char *colname);
  53 void draw_col_free(Draw *draw, Col *col);
  54
  55 /* Drawing context manipulation */
  56 void draw_setfont(Draw *draw, Fnt *font);
  57 void draw_setfg(Draw *draw, Col *col);
  58 void draw_setbg(Draw *draw, Col *col);
  59
  60 /* Drawing functions */
  61 void draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h);
  62 void draw_text(Draw *draw, int x, int y, const char *text);
  63
  64 /* Map functions */
  65 void draw_map(Draw *draw, int x, int y, unsigned int w, unsigned int h);
  66
  67 /* Text functions */
  68 void draw_getextents(Draw *draw, const char *text, TextExtents *extents);
  69