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;
  22 static GtkTextView *notes;
  23 static GtkListStore *location_list, *people_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_text_buffer_set_text(gtk_text_view_get_buffer(notes),
  99                 dive && dive->notes ? dive->notes : "", -1);
 100 }
 101
 102 static void info_menu_edit_cb(GtkMenuItem *menuitem, gpointer user_data)
 103 {
 104         edit_dive_info(current_dive);
 105 }
 106
 107 static void populate_popup_cb(GtkTextView *entry, GtkMenu *menu, gpointer user_data)
 108 {
 109         GtkWidget *item = gtk_menu_item_new_with_label("Edit");
 110         g_signal_connect(item, "activate", G_CALLBACK(info_menu_edit_cb), NULL);
 111         gtk_widget_show(item); /* Yes, really */
 112         gtk_menu_prepend(menu, item);
 113 }
 114
 115 static GtkEntry *text_value(GtkWidget *box, const char *label)
 116 {
 117         GtkWidget *widget;
 118         GtkWidget *frame = gtk_frame_new(label);
 119
 120         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 121         widget = gtk_entry_new();
 122         gtk_widget_set_can_focus(widget, FALSE);
 123         gtk_editable_set_editable(GTK_EDITABLE(widget), FALSE);
 124         gtk_container_add(GTK_CONTAINER(frame), widget);
 125         g_signal_connect(widget, "populate-popup", G_CALLBACK(populate_popup_cb), NULL);
 126         return GTK_ENTRY(widget);
 127 }
 128
 129 static GtkComboBoxEntry *text_entry(GtkWidget *box, const char *label, GtkListStore *completions, const char *text)
 130 {
 131         GtkEntry *entry;
 132         GtkWidget *combo_box;
 133         GtkWidget *frame = gtk_frame_new(label);
 134         GtkEntryCompletion *completion;
 135
 136         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 137
 138         combo_box = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(completions), 0);
 139         gtk_container_add(GTK_CONTAINER(frame), combo_box);
 140
 141         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
 142         if (text && *text)
 143                 gtk_entry_set_text(entry, text);
 144
 145         completion = gtk_entry_completion_new();
 146         gtk_entry_completion_set_text_column(completion, 0);
 147         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(completions));
 148         gtk_entry_completion_set_inline_completion(completion, TRUE);
 149         gtk_entry_completion_set_inline_selection(completion, TRUE);
 150         gtk_entry_completion_set_popup_single_match(completion, FALSE);
 151         gtk_entry_set_completion(entry, completion);
 152
 153         return GTK_COMBO_BOX_ENTRY(combo_box);
 154 }
 155
 156 enum writable {
 157         READ_ONLY,
 158         READ_WRITE
 159 };
 160
 161 static GtkTextView *text_view(GtkWidget *box, const char *label, enum writable writable)
 162 {
 163         GtkWidget *view, *vbox;
 164         GtkWidget *frame = gtk_frame_new(label);
 165
 166         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 167         box = gtk_hbox_new(FALSE, 3);
 168         gtk_container_add(GTK_CONTAINER(frame), box);
 169         vbox = gtk_vbox_new(FALSE, 3);
 170         gtk_container_add(GTK_CONTAINER(box), vbox);
 171
 172         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 173         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 174         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 175
 176         view = gtk_text_view_new();
 177         if (writable == READ_ONLY) {
 178                 gtk_widget_set_can_focus(view, FALSE);
 179                 gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
 180                 gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(view), FALSE);
 181                 g_signal_connect(view, "populate-popup", G_CALLBACK(populate_popup_cb), NULL);
 182         }
 183         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 184         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 185         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 186         return GTK_TEXT_VIEW(view);
 187 }
 188
 189 static enum {
 190         MATCH_EXACT,
 191         MATCH_PREPEND,
 192         MATCH_AFTER
 193 } found_string_entry;
 194 static GtkTreeIter string_entry_location;
 195
 196 static gboolean match_string_entry(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
 197 {
 198         const char *string = data;
 199         char *entry;
 200         int cmp;
 201
 202         gtk_tree_model_get(model, iter, 0, &entry, -1);
 203         cmp = strcmp(entry, string);
 204
 205         /* Stop. The entry is bigger than the new one */
 206         if (cmp > 0)
 207                 return TRUE;
 208
 209         /* Exact match */
 210         if (!cmp) {
 211                 found_string_entry = MATCH_EXACT;
 212                 return TRUE;
 213         }
 214
 215         string_entry_location = *iter;
 216         found_string_entry = MATCH_AFTER;
 217         return FALSE;
 218 }
 219
 220 static int match_list(GtkListStore *list, const char *string)
 221 {
 222         found_string_entry = MATCH_PREPEND;
 223         gtk_tree_model_foreach(GTK_TREE_MODEL(list), match_string_entry, (void *)string);
 224         return found_string_entry;
 225 }
 226
 227 static void add_string_list_entry(const char *string, GtkListStore *list)
 228 {
 229         GtkTreeIter *iter, loc;
 230
 231         if (!string || !*string)
 232                 return;
 233
 234         switch (match_list(list, string)) {
 235         case MATCH_EXACT:
 236                 return;
 237         case MATCH_PREPEND:
 238                 iter = NULL;
 239                 break;
 240         case MATCH_AFTER:
 241                 iter = &string_entry_location;
 242                 break;
 243         }
 244         gtk_list_store_insert_after(list, &loc, iter);
 245         gtk_list_store_set(list, &loc, 0, string, -1);
 246 }
 247
 248 void add_people(const char *string)
 249 {
 250         add_string_list_entry(string, people_list);
 251 }
 252
 253 void add_location(const char *string)
 254 {
 255         add_string_list_entry(string, location_list);
 256 }
 257
 258 struct dive_info {
 259         GtkComboBoxEntry *location, *divemaster, *buddy;
 260         GtkTextView *notes;
 261 };
 262
 263 static void save_dive_info_changes(struct dive *dive, struct dive_info *info)
 264 {
 265         char *old_text, *new_text;
 266         int changed = 0;
 267
 268         new_text = get_combo_box_entry_text(info->location, &dive->location);
 269         if (new_text) {
 270                 add_location(new_text);
 271                 changed = 1;
 272         }
 273
 274         new_text = get_combo_box_entry_text(info->divemaster, &dive->divemaster);
 275         if (new_text) {
 276                 add_people(new_text);
 277                 changed = 1;
 278         }
 279
 280         new_text = get_combo_box_entry_text(info->buddy, &dive->buddy);
 281         if (new_text) {
 282                 add_people(new_text);
 283                 changed = 1;
 284         }
 285
 286         old_text = dive->notes;
 287         dive->notes = get_text(info->notes);
 288         if (text_changed(old_text,dive->notes))
 289                 changed = 1;
 290         if (old_text)
 291                 g_free(old_text);
 292
 293         if (changed) {
 294                 mark_divelist_changed(TRUE);
 295                 flush_divelist(dive);
 296         }
 297 }
 298
 299 static void dive_info_widget(GtkWidget *box, struct dive *dive, struct dive_info *info)
 300 {
 301         GtkWidget *hbox, *label;
 302         char buffer[80];
 303
 304         divename(buffer, sizeof(buffer), dive);
 305         label = gtk_label_new(buffer);
 306         gtk_box_pack_start(GTK_BOX(box), label, FALSE, TRUE, 0);
 307
 308         info->location = text_entry(box, "Location", location_list, dive->location);
 309
 310         hbox = gtk_hbox_new(FALSE, 3);
 311         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);
 312
 313         info->divemaster = text_entry(hbox, "Dive master", people_list, dive->divemaster);
 314         info->buddy = text_entry(hbox, "Buddy", people_list, dive->buddy);
 315
 316         info->notes = text_view(box, "Notes", READ_WRITE);
 317         if (dive->notes && *dive->notes)
 318                 gtk_text_buffer_set_text(gtk_text_view_get_buffer(info->notes), dive->notes, -1);
 319 }
 320
 321 int edit_dive_info(struct dive *dive)
 322 {
 323         int success;
 324         GtkWidget *dialog, *vbox;
 325         struct dive_info info;
 326
 327         if (!dive)
 328                 return 0;
 329
 330         dialog = gtk_dialog_new_with_buttons("Dive Info",
 331                 GTK_WINDOW(main_window),
 332                 GTK_DIALOG_DESTROY_WITH_PARENT,
 333                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 334                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 335                 NULL);
 336
 337         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 338         dive_info_widget(vbox, dive, &info);
 339
 340         gtk_widget_show_all(dialog);
 341         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 342         if (success)
 343                 save_dive_info_changes(dive, &info);
 344
 345         gtk_widget_destroy(dialog);
 346
 347         return success;
 348 }
 349
 350 GtkWidget *extended_dive_info_widget(void)
 351 {
 352         GtkWidget *vbox, *hbox;
 353         vbox = gtk_vbox_new(FALSE, 6);
 354
 355         people_list = gtk_list_store_new(1, G_TYPE_STRING);
 356         location_list = gtk_list_store_new(1, G_TYPE_STRING);
 357
 358         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 359         location = text_value(vbox, "Location");
 360
 361         hbox = gtk_hbox_new(FALSE, 3);
 362         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 363
 364         divemaster = text_value(hbox, "Divemaster");
 365         buddy = text_value(hbox, "Buddy");
 366
 367         notes = text_view(vbox, "Notes", READ_ONLY);
 368         return vbox;
 369 }