Fossil

#if INTERFACE
#define TIMELINE_ARTID    0x0001  /* Show artifact IDs on non-check-in lines */
#define TIMELINE_LEAFONLY 0x0002  /* Show "Leaf", but not "Merge", "Fork" etc */
#define TIMELINE_BRIEF    0x0004  /* Combine adjacent elements of same object */
#define TIMELINE_GRAPH    0x0008  /* Compute a graph */
#define TIMELINE_DISJOINT 0x0010  /* Elements are not contiguous */
#define TIMELINE_FCHANGES 0x0020  /* Detail file changes */
#define TIMELINE_BRCOLOR  0x0040  /* Background color by branch name */
#define TIMELINE_UCOLOR   0x0080  /* Background color by user */
#endif

/*
** Hash a string and use the hash to determine a background color.
*/
const char *hashColor(const char *z){
  int i;                       /* Loop counter */
  unsigned int h = 0;          /* Hash on the branch name */
  int r, g, b;                 /* Values for red, green, and blue */
  int mx, mn, h1, h2;          /* Components of HSV */
  static char zColor[10];      /* The resulting color */

  for(i=0; z[i]; i++ ){
    h = (h<<11) ^ (h<<1) ^ (h>>3) ^ z[0];
    z++;
  }
  mx = 0xd1;
  mn = 0xa8;
  h1 = h%6;
  h2 = ((h/6)%(mx - mn)) + mn;
  switch( h1 ){
    case 0:  r = mx; g = h2, b = mn;  break;
    case 1:  r = h2; g = mx, b = mn;  break;
    case 2:  r = mn; g = mx, b = h2;  break;
    case 3:  r = mn; g = h2, b = mx;  break;
    case 4:  r = h2; g = mn, b = mx;  break;
    default: r = mx; g = mn, b = h2;  break;
  }
  sqlite3_snprintf(8, zColor, "#%02x%02x%02x", r,g,b);
  return zColor;
}

/*
** Output a timeline in the web format given a query.  The query
** should return these columns:
**
**    0.  rid
**    1.  UUID

      @ </td></tr>
    }
    memcpy(zTime, &zDate[11], 5);
    zTime[5] = 0;
    @ <tr>
    @ <td class="timelineTime">%s(zTime)</td>
    @ <td class="timelineGraph">
    if( tmFlags & TIMELINE_UCOLOR )  zBgClr = zUser ? hashColor(zUser) : 0;
    if( pGraph && zType[0]=='c' ){
      int nParent = 0;
      int aParent[32];
      const char *zBr;
      int gidx;
      static Stmt qparent;
      static Stmt qbranch;

      }
      db_reset(&qparent);
      db_bind_int(&qbranch, ":rid", rid);
      if( db_step(&qbranch)==SQLITE_ROW ){
        zBr = db_column_text(&qbranch, 0);
      }else{
        zBr = "trunk";
      }
      if( tmFlags & TIMELINE_BRCOLOR ){
        if( zBr==0 || strcmp(zBr,"trunk")==0 ){
          zBgClr = 0;
        }else{
          zBgClr = hashColor(zBr);
        }
      }
      gidx = graph_add_row(pGraph, rid, nParent, aParent, zBr, zBgClr, isLeaf);
      db_reset(&qbranch);
      @ <div id="m%d(gidx)"></div>
    }
    @</td>
    if( zBgClr && zBgClr[0] ){

**    ng             Suppress the graph if present
**    nd             Suppress "divider" lines
**    fc             Show details of files changed
**    f=RID          Show family (immediate parents and children) of RID
**    from=RID       Path from...
**    to=RID           ... to this
**    nomerge          ... avoid merge links on the path
**    brbg           Background color from branch name
**    ubg            Background color from user
**
** p= and d= can appear individually or together.  If either p= or d=
** appear, then u=, y=, a=, and b= are ignored.
**
** If a= and b= appear, only a= is used.  If neither appear, the most
** recent events are choosen.
**

    tmFlags = TIMELINE_BRIEF | TIMELINE_GRAPH;
  }else{
    tmFlags = TIMELINE_GRAPH;
  }
  if( P("ng")!=0 || zSearch!=0 ){
    tmFlags &= ~TIMELINE_GRAPH;
  }
  if( P("brbg")!=0 ) tmFlags |= TIMELINE_BRCOLOR;
  if( P("ubg")!=0 ) tmFlags |= TIMELINE_UCOLOR;

  style_header("Timeline");
  login_anonymous_available();
  timeline_temp_table();
  blob_zero(&sql);
  blob_zero(&desc);
  blob_append(&sql, "INSERT OR IGNORE INTO timeline ", -1);