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