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 void show_dive_info(struct dive *dive)
  66 {
  67         struct tm *tm;
  68         const char *text;
  69         char buffer[80];
  70
  71         /* dive number and location (or lacking that, the date) go in the window title */
  72         tm = gmtime(&dive->when);
  73         text = dive->location;
  74         if (!text)
  75                 text = "";
  76         if (*text) {
  77                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s", dive->number, text);
  78         } else {
  79                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s %02d/%02d/%04d at %d:%02d",
  80                         dive->number,
  81                         weekday(tm->tm_wday),
  82                         tm->tm_mon+1, tm->tm_mday,
  83                         tm->tm_year+1900,
  84                         tm->tm_hour, tm->tm_min);
  85         }
  86         text = buffer;
  87         if (!dive->number)
  88                 text += 10;     /* Skip the "Dive #0 - " part */
  89         gtk_window_set_title(GTK_WINDOW(main_window), text);
  90
  91         SET_TEXT_VALUE(divemaster);
  92         SET_TEXT_VALUE(buddy);
  93         SET_TEXT_VALUE(location);
  94         gtk_text_buffer_set_text(gtk_text_view_get_buffer(notes),
  95                 dive && dive->notes ? dive->notes : "", -1);
  96 }
  97
  98 static GtkEntry *text_value(GtkWidget *box, const char *label)
  99 {
 100         GtkWidget *widget;
 101         GtkWidget *frame = gtk_frame_new(label);
 102
 103         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 104         widget = gtk_entry_new();
 105         gtk_widget_set_can_focus(widget, FALSE);
 106         gtk_editable_set_editable(GTK_EDITABLE(widget), FALSE);
 107         gtk_container_add(GTK_CONTAINER(frame), widget);
 108         return GTK_ENTRY(widget);
 109 }
 110
 111 static GtkComboBoxEntry *text_entry(GtkWidget *box, const char *label, GtkListStore *completions, const char *text)
 112 {
 113         GtkEntry *entry;
 114         GtkWidget *combo_box;
 115         GtkWidget *frame = gtk_frame_new(label);
 116         GtkEntryCompletion *completion;
 117
 118         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 119
 120         combo_box = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(completions), 0);
 121         gtk_container_add(GTK_CONTAINER(frame), combo_box);
 122
 123         entry = GTK_ENTRY(gtk_bin_get_child(GTK_BIN(combo_box)));
 124         if (text && *text)
 125                 gtk_entry_set_text(entry, text);
 126
 127         completion = gtk_entry_completion_new();
 128         gtk_entry_completion_set_text_column(completion, 0);
 129         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(completions));
 130         gtk_entry_completion_set_inline_completion(completion, TRUE);
 131         gtk_entry_completion_set_inline_selection(completion, TRUE);
 132         gtk_entry_completion_set_popup_single_match(completion, FALSE);
 133         gtk_entry_set_completion(entry, completion);
 134
 135         return GTK_COMBO_BOX_ENTRY(combo_box);
 136 }
 137
 138 enum writable {
 139         READ_ONLY,
 140         READ_WRITE
 141 };
 142
 143 static GtkTextView *text_view(GtkWidget *box, const char *label, enum writable writable)
 144 {
 145         GtkWidget *view, *vbox;
 146         GtkWidget *frame = gtk_frame_new(label);
 147
 148         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 149         box = gtk_hbox_new(FALSE, 3);
 150         gtk_container_add(GTK_CONTAINER(frame), box);
 151         vbox = gtk_vbox_new(FALSE, 3);
 152         gtk_container_add(GTK_CONTAINER(box), vbox);
 153
 154         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 155         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 156         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 157
 158         view = gtk_text_view_new();
 159         if (writable == READ_ONLY) {
 160                 gtk_widget_set_can_focus(view, FALSE);
 161                 gtk_text_view_set_editable(GTK_TEXT_VIEW(view), FALSE);
 162                 gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(view), FALSE);
 163         }
 164         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 165         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 166         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 167         return GTK_TEXT_VIEW(view);
 168 }
 169
 170 static enum {
 171         MATCH_EXACT,
 172         MATCH_PREPEND,
 173         MATCH_AFTER
 174 } found_string_entry;
 175 static GtkTreeIter string_entry_location;
 176
 177 static gboolean match_string_entry(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
 178 {
 179         const char *string = data;
 180         char *entry;
 181         int cmp;
 182
 183         gtk_tree_model_get(model, iter, 0, &entry, -1);
 184         cmp = strcmp(entry, string);
 185
 186         /* Stop. The entry is bigger than the new one */
 187         if (cmp > 0)
 188                 return TRUE;
 189
 190         /* Exact match */
 191         if (!cmp) {
 192                 found_string_entry = MATCH_EXACT;
 193                 return TRUE;
 194         }
 195
 196         string_entry_location = *iter;
 197         found_string_entry = MATCH_AFTER;
 198         return FALSE;
 199 }
 200
 201 static int match_list(GtkListStore *list, const char *string)
 202 {
 203         found_string_entry = MATCH_PREPEND;
 204         gtk_tree_model_foreach(GTK_TREE_MODEL(list), match_string_entry, (void *)string);
 205         return found_string_entry;
 206 }
 207
 208 static void add_string_list_entry(const char *string, GtkListStore *list)
 209 {
 210         GtkTreeIter *iter, loc;
 211
 212         if (!string || !*string)
 213                 return;
 214
 215         switch (match_list(list, string)) {
 216         case MATCH_EXACT:
 217                 return;
 218         case MATCH_PREPEND:
 219                 iter = NULL;
 220                 break;
 221         case MATCH_AFTER:
 222                 iter = &string_entry_location;
 223                 break;
 224         }
 225         gtk_list_store_insert_after(list, &loc, iter);
 226         gtk_list_store_set(list, &loc, 0, string, -1);
 227 }
 228
 229 void add_people(const char *string)
 230 {
 231         add_string_list_entry(string, people_list);
 232 }
 233
 234 void add_location(const char *string)
 235 {
 236         add_string_list_entry(string, location_list);
 237 }
 238
 239 struct dive_info {
 240         GtkComboBoxEntry *location, *divemaster, *buddy;
 241         GtkTextView *notes;
 242 };
 243
 244 static void save_dive_info_changes(struct dive *dive, struct dive_info *info)
 245 {
 246         char *old_text, *new_text;
 247         int changed = 0;
 248
 249         new_text = get_combo_box_entry_text(info->location, &dive->location);
 250         if (new_text) {
 251                 add_location(new_text);
 252                 changed = 1;
 253         }
 254
 255         new_text = get_combo_box_entry_text(info->divemaster, &dive->divemaster);
 256         if (new_text) {
 257                 add_people(new_text);
 258                 changed = 1;
 259         }
 260
 261         new_text = get_combo_box_entry_text(info->buddy, &dive->buddy);
 262         if (new_text) {
 263                 add_people(new_text);
 264                 changed = 1;
 265         }
 266
 267         old_text = dive->notes;
 268         dive->notes = get_text(info->notes);
 269         if (text_changed(old_text,dive->notes))
 270                 changed = 1;
 271         if (old_text)
 272                 g_free(old_text);
 273
 274         if (changed) {
 275                 mark_divelist_changed(TRUE);
 276                 flush_divelist(dive);
 277         }
 278 }
 279
 280 static void dive_info_widget(GtkWidget *box, struct dive *dive, struct dive_info *info)
 281 {
 282         GtkWidget *hbox;
 283
 284         info->location = text_entry(box, "Location", location_list, dive->location);
 285
 286         hbox = gtk_hbox_new(FALSE, 3);
 287         gtk_box_pack_start(GTK_BOX(box), hbox, FALSE, TRUE, 0);
 288
 289         info->divemaster = text_entry(hbox, "Dive master", people_list, dive->divemaster);
 290         info->buddy = text_entry(hbox, "Buddy", people_list, dive->buddy);
 291
 292         info->notes = text_view(box, "Notes", READ_WRITE);
 293         if (dive->notes && *dive->notes)
 294                 gtk_text_buffer_set_text(gtk_text_view_get_buffer(info->notes), dive->notes, -1);
 295 }
 296
 297 int edit_dive_info(struct dive *dive)
 298 {
 299         int success;
 300         GtkWidget *dialog, *vbox;
 301         struct dive_info info;
 302
 303         if (!dive)
 304                 return 0;
 305
 306         dialog = gtk_dialog_new_with_buttons("Dive Info",
 307                 GTK_WINDOW(main_window),
 308                 GTK_DIALOG_DESTROY_WITH_PARENT,
 309                 GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
 310                 GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
 311                 NULL);
 312
 313         vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
 314         dive_info_widget(vbox, dive, &info);
 315
 316         gtk_widget_show_all(dialog);
 317         success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
 318         if (success)
 319                 save_dive_info_changes(dive, &info);
 320
 321         gtk_widget_destroy(dialog);
 322
 323         return success;
 324 }
 325
 326 GtkWidget *extended_dive_info_widget(void)
 327 {
 328         GtkWidget *vbox, *hbox;
 329         vbox = gtk_vbox_new(FALSE, 6);
 330
 331         people_list = gtk_list_store_new(1, G_TYPE_STRING);
 332         location_list = gtk_list_store_new(1, G_TYPE_STRING);
 333
 334         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 335         location = text_value(vbox, "Location");
 336
 337         hbox = gtk_hbox_new(FALSE, 3);
 338         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 339
 340         divemaster = text_value(hbox, "Divemaster");
 341         buddy = text_value(hbox, "Buddy");
 342
 343         notes = text_view(vbox, "Notes", READ_ONLY);
 344         return vbox;
 345 }