divelist.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <time.h>
   5
   6 #include "divelist.h"
   7 #include "dive.h"
   8 #include "display.h"
   9
  10 /*
  11  * The dive list has the dive data in both string format (for showing)
  12  * and in "raw" format (for sorting purposes)
  13  */
  14 enum {
  15         DIVE_INDEX = 0,
  16         DIVE_DATESTR,           /* "Thu Jun 17th, 2011" or whatever */
  17         DIVE_DATE,              /* time_t: dive->when */
  18         DIVE_DEPTHSTR,          /* "67" in ft or whatever */
  19         DIVE_DEPTH,             /* int: dive->maxdepth in mm */
  20         DIVE_DURATIONSTR,       /* "47" in minutes */
  21         DIVE_DURATION,          /* int: in seconds */
  22 };
  23
  24
  25 static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
  26 {
  27         GtkTreeIter iter;
  28         GValue value = {0, };
  29
  30         if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
  31                 return;
  32
  33         gtk_tree_model_get_value(model, &iter, DIVE_INDEX, &value);
  34         selected_dive = g_value_get_int(&value);
  35         repaint_dive();
  36 }
  37
  38 static gboolean set_one_dive(GtkTreeModel *model,
  39                              GtkTreePath *path,
  40                              GtkTreeIter *iter,
  41                              gpointer data)
  42 {
  43         int len;
  44         GValue value = {0, };
  45         struct dive *dive;
  46         char buffer[256], *datestr, *depth, *duration;
  47         struct tm *tm;
  48         int integer, frac;
  49
  50         /* Get the dive number */
  51         gtk_tree_model_get_value(model, iter, DIVE_INDEX, &value);
  52         dive = get_dive(g_value_get_int(&value));
  53         if (!dive)
  54                 return TRUE;
  55
  56         tm = gmtime(&dive->when);
  57         len = snprintf(buffer, sizeof(buffer),
  58                 "%02d.%02d.%02d %02d:%02d",
  59                 tm->tm_mday, tm->tm_mon+1, tm->tm_year % 100,
  60                 tm->tm_hour, tm->tm_min);
  61         datestr = malloc(len+1);
  62         memcpy(datestr, buffer, len+1);
  63
  64         switch (output_units.length) {
  65         unsigned int depth;
  66         case METERS:
  67                 depth = (dive->maxdepth.mm + 49) / 100;
  68                 integer = depth / 10;
  69                 frac = depth % 10;
  70                 if (integer < 20)
  71                         break;
  72                 frac = -1;
  73                 /* Rounding? */
  74                 break;
  75         case FEET:
  76                 integer = to_feet(dive->maxdepth);
  77                 frac = -1;
  78         }
  79         len = snprintf(buffer, sizeof(buffer),
  80                        "%d", integer);
  81         if (frac >= 0)
  82                 len += snprintf(buffer+len, sizeof(buffer)-len,
  83                         ".%d", frac);
  84         depth = malloc(len + 1);
  85         memcpy(depth, buffer, len+1);
  86
  87         len = snprintf(buffer, sizeof(buffer),
  88                        "%d", dive->duration.seconds / 60);
  89         duration = malloc(len + 1);
  90         memcpy(duration, buffer, len+1);
  91
  92         /*
  93          * We only set the fields that changed: the strings.
  94          * The core data itself is unaffected by units
  95          */
  96         gtk_list_store_set(GTK_LIST_STORE(model), iter,
  97                 DIVE_DATESTR, datestr,
  98                 DIVE_DEPTHSTR, depth,
  99                 DIVE_DURATIONSTR, duration,
 100                 -1);
 101
 102         return FALSE;
 103 }
 104
 105 void update_dive_list_units(struct DiveList *dive_list)
 106 {
 107         const char *unit;
 108         GtkTreeModel *model = GTK_TREE_MODEL(dive_list->model);
 109
 110         switch (output_units.length) {
 111         case METERS:
 112                 unit = "m";
 113                 break;
 114         case FEET:
 115                 unit = "ft";
 116                 break;
 117         }
 118         gtk_tree_view_column_set_title(dive_list->depth, unit);
 119
 120         gtk_tree_model_foreach(model, set_one_dive, NULL);
 121 }
 122
 123 static void fill_dive_list(struct DiveList *dive_list)
 124 {
 125         int i;
 126         GtkTreeIter iter;
 127         GtkListStore *store;
 128
 129         store = GTK_LIST_STORE(dive_list->model);
 130
 131         for (i = 0; i < dive_table.nr; i++) {
 132                 struct dive *dive = dive_table.dives[i];
 133
 134                 gtk_list_store_append(store, &iter);
 135                 gtk_list_store_set(store, &iter,
 136                         DIVE_INDEX, i,
 137                         DIVE_DATESTR, "date",
 138                         DIVE_DATE, dive->when,
 139                         DIVE_DEPTHSTR, "depth",
 140                         DIVE_DEPTH, dive->maxdepth,
 141                         DIVE_DURATIONSTR, "duration",
 142                         DIVE_DURATION, dive->duration.seconds,
 143                         -1);
 144         }
 145
 146         update_dive_list_units(dive_list);
 147 }
 148
 149 void dive_list_update_dives(struct DiveList dive_list)
 150 {
 151         gtk_list_store_clear(GTK_LIST_STORE(dive_list.model));
 152         fill_dive_list(&dive_list);
 153         repaint_dive();
 154 }
 155
 156 struct DiveList dive_list_create(void)
 157 {
 158         struct DiveList    dive_list;
 159         GtkTreeSelection  *selection;
 160         GtkCellRenderer   *renderer;
 161         GtkTreeViewColumn *col;
 162
 163         dive_list.model = gtk_list_store_new(7,
 164                                 G_TYPE_INT,                     /* index */
 165                                 G_TYPE_STRING, G_TYPE_INT,      /* Date */
 166                                 G_TYPE_STRING, G_TYPE_INT,      /* Depth */
 167                                 G_TYPE_STRING, G_TYPE_INT       /* Duration */
 168                                 );
 169         dive_list.tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(dive_list.model));
 170         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(dive_list.tree_view));
 171
 172         gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
 173         gtk_widget_set_size_request(dive_list.tree_view, 200, 100);
 174
 175         renderer = gtk_cell_renderer_text_new();
 176         dive_list.date = col = gtk_tree_view_column_new();
 177         gtk_tree_view_column_set_title(col, "Date");
 178         gtk_tree_view_column_set_sort_column_id(col, DIVE_DATE);
 179         gtk_tree_view_column_set_resizable (col, TRUE);
 180         gtk_tree_view_column_pack_start(col, renderer, TRUE);
 181         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_DATESTR);
 182         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 183
 184         renderer = gtk_cell_renderer_text_new();
 185         dive_list.depth = col = gtk_tree_view_column_new();
 186         gtk_tree_view_column_set_title(col, "ft");
 187         gtk_tree_view_column_set_sort_column_id(col, DIVE_DEPTH);
 188         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 189         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_DEPTHSTR);
 190         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 191         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 192         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 193
 194         renderer = gtk_cell_renderer_text_new();
 195         dive_list.duration = col = gtk_tree_view_column_new();
 196         gtk_tree_view_column_set_title(col, "min");
 197         gtk_tree_view_column_set_sort_column_id(col, DIVE_DURATION);
 198         gtk_tree_view_column_pack_start(col, renderer, FALSE);
 199         gtk_tree_view_column_add_attribute(col, renderer, "text", DIVE_DURATIONSTR);
 200         gtk_tree_view_append_column(GTK_TREE_VIEW(dive_list.tree_view), col);
 201         gtk_object_set(GTK_OBJECT(renderer), "alignment", PANGO_ALIGN_RIGHT, NULL);
 202         gtk_cell_renderer_set_alignment(GTK_CELL_RENDERER(renderer), 1.0, 0.5);
 203
 204         fill_dive_list(&dive_list);
 205
 206         g_object_set(G_OBJECT(dive_list.tree_view), "headers-visible", TRUE,
 207                                           "search-column", 0,
 208                                           "rules-hint", TRUE,
 209                                           NULL);
 210
 211         g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), dive_list.model);
 212
 213         dive_list.container_widget = gtk_scrolled_window_new(NULL, NULL);
 214         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dive_list.container_widget),
 215                                GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
 216         gtk_container_add(GTK_CONTAINER(dive_list.container_widget), dive_list.tree_view);
 217
 218         return dive_list;
 219 }