info.c

   1 /* info.c */
   2 /* creates the UI for the info frame -
   3  * controlled through the following interfaces:
   4  *
   5  * void flush_dive_info_changes(struct dive *dive)
   6  * void show_dive_info(struct dive *dive)
   7  *
   8  * called from gtk-ui:
   9  * GtkWidget *extended_dive_info_widget(void)
  10  */
  11 #include <stdio.h>
  12 #include <string.h>
  13 #include <stdlib.h>
  14 #include <time.h>
  15 #include <ctype.h>
  16
  17 #include "dive.h"
  18 #include "display.h"
  19 #include "display-gtk.h"
  20 #include "divelist.h"
  21
  22 static GtkComboBoxEntry *location, *buddy, *divemaster;
  23 static GtkTextBuffer *notes;
  24
  25 static char *get_text(GtkTextBuffer *buffer)
  26 {
  27         GtkTextIter start;
  28         GtkTextIter end;
  29
  30         gtk_text_buffer_get_start_iter(buffer, &start);
  31         gtk_text_buffer_get_end_iter(buffer, &end);
  32         return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
  33 }
  34
  35 /* old is NULL or a valid string, new is a valid string
  36  * NOTW: NULL and "" need to be treated as "unchanged" */
  37 static int text_changed(const char *old, const char *new)
  38 {
  39         return ((old && strcmp(old,new)) ||
  40                 (!old && strcmp("",new)));
  41 }
  42
  43 static char *get_combo_box_entry_text(GtkComboBoxEntry *combo_box, char **textp)
  44 {
  45         char *old = *textp;
  46         const gchar *new;
  47         GtkEntry *entry;
  48
  49         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
  50         new = gtk_entry_get_text(entry);
  51         while (isspace(*new))
  52                 new++;
  53         if (!text_changed(old,new))
  54                 return NULL;
  55         free(old);
  56         *textp = strdup(new);
  57         return *textp;
  58 }
  59
  60
  61 void flush_dive_info_changes(struct dive *dive)
  62 {
  63         char *old_text, *new_text;
  64         int changed = 0;
  65
  66         if (!dive)
  67                 return;
  68
  69         new_text = get_combo_box_entry_text(location, &dive->location);
  70         if (new_text) {
  71                 add_location(new_text);
  72                 changed = 1;
  73         }
  74
  75         new_text = get_combo_box_entry_text(divemaster, &dive->divemaster);
  76         if (new_text) {
  77                 add_people(new_text);
  78                 changed = 1;
  79         }
  80
  81         new_text = get_combo_box_entry_text(buddy, &dive->buddy);
  82         if (new_text) {
  83                 add_people(new_text);
  84                 changed = 1;
  85         }
  86
  87         old_text = dive->notes;
  88         dive->notes = get_text(notes);
  89         if (text_changed(old_text,dive->notes))
  90                 changed = 1;
  91         if (old_text)
  92                 g_free(old_text);
  93
  94         if (changed)
  95                 mark_divelist_changed(TRUE);
  96 }
  97
  98 static void set_combo_box_entry_text(GtkComboBoxEntry *combo_box, const char *text)
  99 {
 100         GtkEntry *entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
 101         gtk_combo_box_set_active(GTK_COMBO_BOX(combo_box), -1);
 102         if (!*text)
 103                 gtk_entry_set_text(entry, " ");
 104         gtk_entry_set_text(entry, text);
 105 }
 106
 107 #define SET_TEXT_ENTRY(x) \
 108         set_combo_box_entry_text(x, dive && dive->x ? dive->x : "")
 109
 110 void show_dive_info(struct dive *dive)
 111 {
 112         struct tm *tm;
 113         const char *text;
 114         char buffer[80];
 115
 116         /* dive number and location (or lacking that, the date) go in the window title */
 117         tm = gmtime(&dive->when);
 118         text = dive->location;
 119         if (!text)
 120                 text = "";
 121         if (*text) {
 122                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s", dive->number, text);
 123         } else {
 124                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s %02d/%02d/%04d at %d:%02d",
 125                         dive->number,
 126                         weekday(tm->tm_wday),
 127                         tm->tm_mon+1, tm->tm_mday,
 128                         tm->tm_year+1900,
 129                         tm->tm_hour, tm->tm_min);
 130         }
 131         text = buffer;
 132         if (!dive->number)
 133                 text += 10;     /* Skip the "Dive #0 - " part */
 134         gtk_window_set_title(GTK_WINDOW(main_window), text);
 135
 136         SET_TEXT_ENTRY(divemaster);
 137         SET_TEXT_ENTRY(buddy);
 138         SET_TEXT_ENTRY(location);
 139         gtk_text_buffer_set_text(notes, dive && dive->notes ? dive->notes : "", -1);
 140 }
 141
 142 static GtkComboBoxEntry *text_entry(GtkWidget *box, const char *label, GtkListStore *completions)
 143 {
 144         GtkEntry *entry;
 145         GtkWidget *combo_box;
 146         GtkWidget *frame = gtk_frame_new(label);
 147         GtkEntryCompletion *completion;
 148
 149         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 150
 151         combo_box = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(completions), 0);
 152         gtk_container_add(GTK_CONTAINER(frame), combo_box);
 153
 154         entry = GTK_ENTRY(GTK_BIN(combo_box)->child);
 155
 156         completion = gtk_entry_completion_new();
 157         gtk_entry_completion_set_text_column(completion, 0);
 158         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(completions));
 159         gtk_entry_completion_set_inline_completion(completion, TRUE);
 160         gtk_entry_completion_set_inline_selection(completion, TRUE);
 161         gtk_entry_completion_set_popup_single_match(completion, FALSE);
 162         gtk_entry_set_completion(entry, completion);
 163
 164         return GTK_COMBO_BOX_ENTRY(combo_box);
 165 }
 166
 167 static GtkTextBuffer *text_view(GtkWidget *box, const char *label)
 168 {
 169         GtkWidget *view, *vbox;
 170         GtkTextBuffer *buffer;
 171         GtkWidget *frame = gtk_frame_new(label);
 172
 173         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 174         box = gtk_hbox_new(FALSE, 3);
 175         gtk_container_add(GTK_CONTAINER(frame), box);
 176         vbox = gtk_vbox_new(FALSE, 3);
 177         gtk_container_add(GTK_CONTAINER(box), vbox);
 178
 179         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 180         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 181         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 182
 183         view = gtk_text_view_new();
 184         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 185         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 186
 187         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 188
 189         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 190         return buffer;
 191 }
 192
 193 static enum {
 194         MATCH_EXACT,
 195         MATCH_PREPEND,
 196         MATCH_AFTER
 197 } found_string_entry;
 198 static GtkTreeIter string_entry_location;
 199
 200 static gboolean match_string_entry(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
 201 {
 202         const char *string = data;
 203         char *entry;
 204         int cmp;
 205
 206         gtk_tree_model_get(model, iter, 0, &entry, -1);
 207         cmp = strcmp(entry, string);
 208
 209         /* Stop. The entry is bigger than the new one */
 210         if (cmp > 0)
 211                 return TRUE;
 212
 213         /* Exact match */
 214         if (!cmp) {
 215                 found_string_entry = MATCH_EXACT;
 216                 return TRUE;
 217         }
 218
 219         string_entry_location = *iter;
 220         found_string_entry = MATCH_AFTER;
 221         return FALSE;
 222 }
 223
 224 static int match_list(GtkListStore *list, const char *string)
 225 {
 226         found_string_entry = MATCH_PREPEND;
 227         gtk_tree_model_foreach(GTK_TREE_MODEL(list), match_string_entry, (void *)string);
 228         return found_string_entry;
 229 }
 230
 231 static GtkListStore *location_list, *people_list;
 232
 233 static void add_string_list_entry(const char *string, GtkListStore *list)
 234 {
 235         GtkTreeIter *iter, loc;
 236
 237         if (!string || !*string)
 238                 return;
 239
 240         switch (match_list(list, string)) {
 241         case MATCH_EXACT:
 242                 return;
 243         case MATCH_PREPEND:
 244                 iter = NULL;
 245                 break;
 246         case MATCH_AFTER:
 247                 iter = &string_entry_location;
 248                 break;
 249         }
 250         gtk_list_store_insert_after(list, &loc, iter);
 251         gtk_list_store_set(list, &loc, 0, string, -1);
 252 }
 253
 254 void add_people(const char *string)
 255 {
 256         add_string_list_entry(string, people_list);
 257 }
 258
 259 void add_location(const char *string)
 260 {
 261         add_string_list_entry(string, location_list);
 262 }
 263
 264 GtkWidget *extended_dive_info_widget(void)
 265 {
 266         GtkWidget *vbox, *hbox;
 267         vbox = gtk_vbox_new(FALSE, 6);
 268
 269         people_list = gtk_list_store_new(1, G_TYPE_STRING);
 270         location_list = gtk_list_store_new(1, G_TYPE_STRING);
 271
 272         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 273         location = text_entry(vbox, "Location", location_list);
 274
 275         hbox = gtk_hbox_new(FALSE, 3);
 276         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 277
 278         divemaster = text_entry(hbox, "Divemaster", people_list);
 279         buddy = text_entry(hbox, "Buddy", people_list);
 280
 281         notes = text_view(vbox, "Notes");
 282         return vbox;
 283 }