graph.h

   1
   2 /* Copyright (c) 2006-2010 Jonas Fonseca <fonseca@diku.dk>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of
   7  * the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #ifndef TIG_GRAPH_H
  16 #define TIG_GRAPH_H
  17
  18 #define GRAPH_COLORS    7
  19
  20 struct graph_symbol {
  21         unsigned int color:8;
  22         unsigned int bold:1;
  23
  24         unsigned int commit:1;
  25         unsigned int branch:1;
  26
  27         unsigned int boundary:1;
  28         unsigned int initial:1;
  29         unsigned int merge:1;
  30
  31         unsigned int vbranch:1;
  32         unsigned int branched:1;
  33 };
  34
  35 struct graph_canvas {
  36         size_t size;                    /* The width of the graph array. */
  37         struct graph_symbol *symbols;   /* Symbols for this row. */
  38 };
  39
  40 struct graph_column {
  41         struct graph_symbol symbol;
  42         char id[SIZEOF_REV];            /* Parent SHA1 ID. */
  43 };
  44
  45 struct graph_row {
  46         size_t size;
  47         struct graph_column *columns;
  48 };
  49
  50 struct graph {
  51         struct graph_row row;
  52         struct graph_row parents;
  53         size_t position;
  54         size_t expanded;
  55         const char *id;
  56         struct graph_canvas *canvas;
  57         size_t colors[GRAPH_COLORS];
  58         bool has_parents;
  59         bool is_boundary;
  60 };
  61
  62 void done_graph(struct graph *graph);
  63
  64 bool graph_render_parents(struct graph *graph);
  65 bool graph_add_commit(struct graph *graph, struct graph_canvas *canvas,
  66                       const char *id, const char *parents, bool is_boundary);
  67 struct graph_column *graph_add_parent(struct graph *graph, const char *parent);
  68
  69 const char *graph_symbol_to_ascii(struct graph_symbol *symbol);
  70 const char *graph_symbol_to_utf8(struct graph_symbol *symbol);
  71 const chtype *graph_symbol_to_chtype(struct graph_symbol *symbol);
  72
  73 #endif