graph.h

   1 /* Copyright (c) 2006-2013 Jonas Fonseca <fonseca@diku.dk>
   2  *
   3  * This program is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU General Public License as
   5  * published by the Free Software Foundation; either version 2 of
   6  * the License, or (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #ifndef TIG_GRAPH_H
  15 #define TIG_GRAPH_H
  16
  17 #define GRAPH_COLORS    7
  18
  19 struct graph_symbol {
  20         unsigned int color:8;
  21         unsigned int bold:1;
  22
  23         unsigned int commit:1;
  24         unsigned int branch:1;
  25
  26         unsigned int boundary:1;
  27         unsigned int initial:1;
  28         unsigned int merge:1;
  29
  30         unsigned int vbranch:1;
  31         unsigned int branched:1;
  32 };
  33
  34 struct graph_canvas {
  35         size_t size;                    /* The width of the graph array. */
  36         struct graph_symbol *symbols;   /* Symbols for this row. */
  37 };
  38
  39 struct graph_column {
  40         struct graph_symbol symbol;
  41         char id[SIZEOF_REV];            /* Parent SHA1 ID. */
  42 };
  43
  44 struct graph_row {
  45         size_t size;
  46         struct graph_column *columns;
  47 };
  48
  49 struct graph {
  50         struct graph_row row;
  51         struct graph_row parents;
  52         size_t position;
  53         size_t expanded;
  54         const char *id;
  55         struct graph_canvas *canvas;
  56         size_t colors[GRAPH_COLORS];
  57         bool has_parents;
  58         bool is_boundary;
  59 };
  60
  61 void done_graph(struct graph *graph);
  62
  63 bool graph_render_parents(struct graph *graph);
  64 bool graph_add_commit(struct graph *graph, struct graph_canvas *canvas,
  65                       const char *id, const char *parents, bool is_boundary);
  66 struct graph_column *graph_add_parent(struct graph *graph, const char *parent);
  67
  68 const char *graph_symbol_to_ascii(struct graph_symbol *symbol);
  69 const char *graph_symbol_to_utf8(struct graph_symbol *symbol);
  70 const chtype *graph_symbol_to_chtype(struct graph_symbol *symbol);
  71
  72 #endif
  73
  74 /* vim: set ts=8 sw=8 noexpandtab: */