info.c

   1 /* info.c */
   2 /* creates the UI for the info frame -
   3  * controlled through the following interfaces:
   4  *
   5  * void show_dive_info(struct dive *dive)
   6  *
   7  * called from gtk-ui:
   8  * GtkWidget *extended_dive_info_widget(void)
   9  */
  10 #include <stdio.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <time.h>
  14 #include <ctype.h>
  15
  16 #include "dive.h"
  17 #include "display.h"
  18 #include "display-gtk.h"
  19 #include "divelist.h"
  20
  21 static GtkEntry *location, *buddy, *divemaster, *rating;
  22 static GtkTextView *notes;
  23 static GtkListStore *location_list, *people_list, *star_list;
  24
  25 static char *get_text(GtkTextView *view)
  26 {
  27         GtkTextBuffer *buffer;
  28         GtkTextIter start;
  29         GtkTextIter end;
  30
  31         buffer = gtk_text_view_get_buffer(view);
  32         gtk_text_buffer_get_start_iter(buffer, &start);
  33         gtk_text_buffer_get_end_iter(buffer, &end);
  34         return gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
  35 }
  36
  37 /* old is NULL or a valid string, new is a valid string
  38  * NOTW: NULL and "" need to be treated as "unchanged" */
  39 static int text_changed(const char *old, const char *new)
  40 {
  41         return ((old && strcmp(old,new)) ||
  42                 (!old && strcmp("",new)));
  43 }
  44
  45 static char *get_combo_box_entry_text(GtkComboBoxEntry *combo_box, char **textp)
  46 {
  47         char *old = *textp;
  48         const gchar *new;
  49         GtkEntry *entry;
  50
  51         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
  52         new = gtk_entry_get_text(entry);
  53         while (isspace(*new))
  54                 new++;
  55         if (!text_changed(old,new))
  56                 return NULL;
  57         free(old);
  58         *textp = strdup(new);
  59         return *textp;
  60 }
  61
  62 #define SET_TEXT_VALUE(x) \
  63         gtk_entry_set_text(x, dive && dive->x ? dive->x : "")
  64
  65 static int divename(char *buf, size_t size, struct dive *dive)
  66 {
  67         struct tm *tm = gmtime(&dive->when);
  68         return snprintf(buf, size, "Dive #%d - %s %02d/%02d/%04d at %d:%02d",
  69                 dive->number,
  70                 weekday(tm->tm_wday),
  71                 tm->tm_mon+1, tm->tm_mday,
  72                 tm->tm_year+1900,
  73                 tm->tm_hour, tm->tm_min);
  74 }
  75
  76 void show_dive_info(struct dive *dive)
  77 {
  78         const char *text;
  79         char buffer[80];
  80
  81         /* dive number and location (or lacking that, the date) go in the window title */
  82         text = dive->location;
  83         if (!text)
  84                 text = "";
  85         if (*text) {
  86                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s", dive->number, text);
  87         } else {
  88                 divename(buffer, sizeof(buffer), dive);
  89         }
  90         text = buffer;
  91         if (!dive->number)
  92                 text += 10;     /* Skip the "Dive #0 - " part */
  93         gtk_window_set_title(GTK_WINDOW(main_window), text);
  94
  95         SET_TEXT_VALUE(divemaster);
  96         SET_TEXT_VALUE(buddy);
  97         SET_TEXT_VALUE(location);
  98         gtk_entry_set_text(rating, star_strings[dive->rating]);
  99         gtk_text_buffer_set_text(gtk_text_view_get_buffer(notes),
 100                 dive && dive->notes ? dive->notes : "", -1);
 101 }
 102
 103 static void info_menu_edit_cb(GtkMenuItem *menuitem, gpointer user_data)
 104 {
 105         edit_dive_info(current_dive);
 106 }
 107
 108 static void populate_popup_cb(GtkTextView *entry, GtkMenu *menu, gpointer user_data)
 109 {
 110         GtkWidget *item = gtk_menu_item_new_with_label("Edit");
 111         g_signal_connect(item, "activate", G_CALLBACK(info_menu_edit_cb), NULL);
 112         gtk_widget_show(item); /* Yes, really */
 113         gtk_menu_prepend(menu, item);
 114 }
 115
 116 static GtkEntry *text_value(GtkWidget *box, const char *label)
 117 {
 118         GtkWidget *widget;
 119         GtkWidget *frame = gtk_frame_new(label);
 120
 121         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 122         widget = gtk_entry_new();
 123         gtk_widget_set_can_focus(widget, FALSE);
 124         gtk_editable_set_editable(GTK_EDITABLE(widget), FALSE);
 125         gtk_container_add(GTK_CONTAINER(frame), widget);
 126         g_signal_connect(widget, "populate-popup", G_CALLBACK(populate_popup_cb), NULL);
 127         return GTK_ENTRY(widget);
 128 }
 129
 130 static GtkComboBoxEntry *text_entry(GtkWidget *box, const char *label, GtkListStore *completions, const char *text)
 131 {
 132         GtkEntry *entry;
 133         GtkWidget *combo_box;
 134         GtkWidget *frame = gtk_frame_new(label);
 135         GtkEntryCompletion *completion;
 136
 137         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 138
 139         combo_box = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(completions), 0);
 140         gtk_container_add(GTK_CONTAINER(frame), combo_box);
 141
 142         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
 143         if (text && *text)
 144                 gtk_entry_set_text(entry, text);
 145
 146         completion = gtk_entry_completion_new();
 147         gtk_entry_completion_set_text_column(completion, 0);
 148         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(completions));
 149         gtk_entry_completion_set_inline_completion(completion, TRUE);
 150         gtk_entry_completion_set_inline_selection(completion, TRUE);
 151         gtk_entry_completion_set_popup_single_match(completion, FALSE);
 152         gtk_entry_set_completion(entry, completion);
 153
 154         return GTK_COMBO_BOX_ENTRY(combo_box);
 155 }
 156
 157 enum writable {
 158         READ_ONLY,
 159         READ_WRITE
 160 };
 161
 162 static GtkTextView *text_view(GtkWidget *box, const char *label, enum writable writable)
 163 {
 164         GtkWidget *view, *vbox;
 165         GtkWidget *frame = gtk_frame_new(label);
 166
 167         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 168         box = gtk_hbox_new(FALSE, 3);
 169         gtk_container_add(GTK_CONTAINER(frame), box);
 170         vbox = gtk_vbox_new(FALSE, 3);
 171         gtk_container_add(GTK_CONTAINER(box), vbox);
 172
 173         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 174         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 175         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 176
 177         view = gtk_text_view_new();
 178         if (writable == READ_ONLY) {
 179                 gtk_widget_set_can_focus(view, FALSE);
 180                 gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
 181                 gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(view), FALSE);
 182                 g_signal_connect(view, "populate-popup", G_CALLBACK(populate_popup_cb), NULL);
 183         }
 184         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 185         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 186         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 187         return GTK_TEXT_VIEW(view);
 188 }
 189
 190 static enum {
 191         MATCH_EXACT,
 192         MATCH_PREPEND,
 193         MATCH_AFTER
 194 } found_string_entry;
 195 static GtkTreeIter string_entry_location;
 196
 197 static gboolean match_string_entry(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
 198 {
 199         const char *string = data;
 200         char *entry;
 201         int cmp;
 202
 203         gtk_tree_model_get(model, iter, 0, &entry, -1);
 204         cmp = strcmp(entry, string);
 205
 206         /* Stop. The entry is bigger than the new one */
 207         if (cmp > 0)
 208                 return TRUE;
 209
 210         /* Exact match */
 211         if (!cmp) {
 212                 found_string_entry = MATCH_EXACT;
 213                 return TRUE;
 214         }
 215
 216         string_entry_location = *iter;
 217         found_string_entry = MATCH_AFTER;
 218         return FALSE;
 219 }
 220
 221 static int match_list(GtkListStore *list, const char *string)
 222 {
 223         found_string_entry = MATCH_PREPEND;
 224         gtk_tree_model_foreach(GTK_TREE_MODEL(list), match_string_entry, (void *)string);
 225         return found_string_entry;
 226 }
 227
 228 static void add_string_list_entry(const char *string, GtkListStore *list)
 229 {
 230         GtkTreeIter *iter, loc;
 231
 232         if (!string || !*string)
 233                 return;
 234
 235         switch (match_list(list, string)) {
 236         case MATCH_EXACT:
 237                 return;
 238         case MATCH_PREPEND:
 239                 iter = NULL;
 240                 break;
 241         case MATCH_AFTER:
 242                 iter = &string_entry_location;
 243                 break;
 244         }
 245         gtk_list_store_insert_after(list, &loc, iter);
 246         gtk_list_store_set(list, &loc, 0, string, -1);
 247 }
 248
 249 void add_people(const char *string)
 250 {
 251         add_string_list_entry(string, people_list);
 252 }
 253
 254 void add_location(const char *string)
 255 {
 256         add_string_list_entry(string, location_list);
 257 }
 258
 259 static int get_rating(const char *string)
 260 {
 261         int rating = 0;
 262         int i;
 263
 264         for (i = 0; i <= 5; i++)
 265                 if (!strcmp(star_strings[i],string))
 266                         rating = i;
 267         return rating;
 268 }
 269
 270 struct dive_info {
 271         GtkComboBoxEntry *location, *divemaster, *buddy, *rating;
 272         GtkTextView *notes;
 273 };
 274
 275 static void save_dive_info_changes(struct dive *dive, struct dive_info *info)
 276 {
 277         char *old_text, *new_text;
 278         char *rating_string;
 279         int changed = 0;
 280
 281         new_text = get_combo_box_entry_text(info->location, &dive->location);
 282         if (new_text) {
 283                 add_location(new_text);
 284                 changed = 1;
 285         }
 286
 287         new_text = get_combo_box_entry_text(info->divemaster, &dive->divemaster);
 288         if (new_text) {
 289                 add_people(new_text);
 290                 changed = 1;
 291         }
 292
 293         new_text = get_combo_box_entry_text(info->buddy, &dive->buddy);
 294         if (new_text) {
 295                 add_people(new_text);
 296                 changed = 1;
 297         }
 298
 299         rating_string = strdup(star_strings[dive->rating]);
 300         new_text = get_combo_box_entry_text(info->rating, &rating_string);
 301         if (new_text) {
 302                 dive->rating = get_rating(rating_string);
 303                 free(rating_string);
 304                 changed =1;
 305         }
 306
 307         old_text = dive->notes;
 308         dive->notes = get_text(info->notes);
 309         if (text_changed(old_text,dive->notes))
 310                 changed = 1;
 311         if (old_text)
 312                 g_free(old_text);
 313
 314         if (changed) {
 315                 mark_divelist_changed(TRUE);
 316                 flush_divelist(dive);
 317         }
 318 }
 319
 320 static void dive_info_widget(GtkWidget *box, struct dive *dive, struct dive_info *info)
 321 {
 322         GtkWidget *hbox, *label, *cylinder, *frame;
 323         char buffer[80];
 324
 325         divename(buffer, sizeof(buffer), dive);
 326         label = gtk_label_new(buffer);
 327         gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
 328
 329         info->location = text_entry(box, "Location", location_list, dive->location);
 330
 331         hbox = gtk_hbox_new(FALSE, 3);
 332         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);
 333
 334         info->divemaster = text_entry(hbox, "Dive master", people_list, dive->divemaster);
 335         info->buddy = text_entry(hbox, "Buddy", people_list, dive->buddy);
 336
 337         hbox = gtk_hbox_new(FALSE, 3);
 338         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);
 339
 340         info->rating = text_entry(hbox, "Rating", star_list, star_strings[dive->rating]);
 341
 342         info->notes = text_view(box, "Notes", READ_WRITE);
 343         if (dive->notes && *dive->notes)
 344                 gtk_text_buffer_set_text(gtk_text_view_get_buffer(info->notes), dive->notes, -1);
 345
 346         hbox = gtk_hbox_new(FALSE, 3);
 347         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);
 348
 349         frame = gtk_frame_new("Cylinder");
 350         cylinder = cylinder_list_widget();
 351         gtk_container_add(GTK_CONTAINER(frame), cylinder);
 352         gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
 353 }
 354
 355 int edit_dive_info(struct dive *dive)
 356 {
 357         int success;
 358         GtkWidget *dialog, *vbox;
 359         struct dive_info info;
 360
 361         if (!dive)
 362                 return 0;
 363
 364         dialog = gtk_dialog_new_with_buttons("Dive Info",
 365                 GTK_WINDOW(main_window),
 366                 GTK_DIALOG_DESTROY_WITH_PARENT,
 367                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 368                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 369                 NULL);
 370
 371         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 372         dive_info_widget(vbox, dive, &info);
 373
 374         gtk_widget_show_all(dialog);
 375         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 376         if (success)
 377                 save_dive_info_changes(dive, &info);
 378
 379         gtk_widget_destroy(dialog);
 380
 381         return success;
 382 }
 383
 384 GtkWidget *extended_dive_info_widget(void)
 385 {
 386         GtkWidget *vbox, *hbox;
 387         vbox = gtk_vbox_new(FALSE, 6);
 388
 389         people_list = gtk_list_store_new(1, G_TYPE_STRING);
 390         location_list = gtk_list_store_new(1, G_TYPE_STRING);
 391         star_list = gtk_list_store_new(1, G_TYPE_STRING);
 392         add_string_list_entry(ZERO_STARS, star_list);
 393         add_string_list_entry(ONE_STARS, star_list);
 394         add_string_list_entry(TWO_STARS, star_list);
 395         add_string_list_entry(THREE_STARS, star_list);
 396         add_string_list_entry(FOUR_STARS, star_list);
 397         add_string_list_entry(FIVE_STARS, star_list);
 398
 399         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 400         location = text_value(vbox, "Location");
 401
 402         hbox = gtk_hbox_new(FALSE, 3);
 403         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 404
 405         divemaster = text_value(hbox, "Divemaster");
 406         buddy = text_value(hbox, "Buddy");
 407
 408         hbox = gtk_hbox_new(FALSE, 3);
 409         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 410
 411         rating = text_value(hbox, "Rating");
 412
 413         notes = text_view(vbox, "Notes", READ_ONLY);
 414         return vbox;
 415 }