sushivision/dimension.h

   1 /*
   2  *
   3  *     sushivision copyright (C) 2006-2007 Monty <monty@xiph.org>
   4  *
   5  *  sushivision is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2, or (at your option)
   8  *  any later version.
   9  *
  10  *  sushivision is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with sushivision; see the file COPYING.  If not, write to the
  17  *  Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  18  *
  19  *
  20  */
  21
  22
  23 #define SV_DIM_NO_X 0x100
  24 #define SV_DIM_NO_Y 0x200
  25
  26 enum sv_dim_type { SV_DIM_CONTINUOUS,
  27                    SV_DIM_DISCRETE,
  28                    SV_DIM_PICKLIST};
  29
  30 typedef struct {
  31   sv_dim_list_t *dl;
  32   GtkWidget *t;
  33
  34   /* one or the other */
  35   _sv_slider_t *scale;
  36   GtkWidget *menu;
  37   GtkWidget *entry[3];
  38
  39   /* calls with the callback data and a state flag:
  40      0: begin set
  41      1: continue set
  42      2: end set
  43      3: programmatic modification
  44   */
  45   void (*center_callback)(sv_dim_list_t *);
  46   void (*bracket_callback)(sv_dim_list_t *);
  47 } _sv_dim_widget_t;
  48
  49 typedef struct sv_dim_data{
  50
  51   char *legend;
  52   enum sv_dim_type type;
  53
  54   double floor;
  55   double lo;
  56   double val;
  57   fouble hi;
  58   double ceil;
  59
  60   long numerator;
  61   long denominator;
  62
  63   unsigned flags;
  64
  65 } sv_dim_data_t;
  66
  67 typedef struct sv_dim_lookup{
  68
  69   sv_scale_t *scale;
  70
  71   int (*callback)(sv_dim_t *);
  72
  73   int widgets;
  74   _sv_dim_widget_t **widget_list;
  75
  76   int (*value_callback)(sv_dim_t *d, void *data);
  77   void *value_callback_data;
  78
  79 } sv_dim_lookup_t;
  80
  81 struct sv_dim{
  82   int number;
  83   char *name;
  84
  85   sv_dim_data_t data;
  86   sv_dim_look_t look;
  87 };
  88
  89
  90 extern int _sv_dim_scales(sv_dim_t *d,
  91                           double lo,
  92                           double hi,
  93                           int panel_w, int data_w,
  94                           int spacing,
  95                           char *legend,
  96                           _sv_scalespace_t *panel,
  97                           _sv_scalespace_t *data,
  98                           _sv_scalespace_t *iter);
  99 extern int _sv_dim_scales_from_panel(sv_dim_t *d,
 100                                      _sv_scalespace_t panel,
 101                                      int data_w,
 102                                      _sv_scalespace_t *data,
 103                                      _sv_scalespace_t *iter);
 104
 105 extern int _sv_dim_set_thumb(sv_dim_t *d, int thumb, double val);
 106 extern int _sv_dim_widget_set_thumb(_sv_dim_widget_t *d, int thumb, double val);
 107 extern void _sv_dim_widget_set_thumb_active(_sv_dim_widget_t *dw, int thumb, int active);
 108 extern _sv_dim_widget_t *_sv_dim_widget_new(sv_dim_list_t *dl,
 109                                            void (*center_callback)(sv_dim_list_t *),
 110                                            void (*bracket_callback)(sv_dim_list_t *));
 111 extern int _sv_dim_save(sv_dim_t *d, xmlNodePtr instance);
 112 extern int _sv_dim_load(sv_dim_t *d, _sv_undo_t *u, xmlNodePtr dn, int warn);