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