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                 add_location(new_text);
  57                 if (text_changed(old_text,dive->location))
  58                         changed = 1;
  59                 if (old_text)
  60                         g_free(old_text);
  61         }
  62
  63         if (divemaster_changed) {
  64                 char *new_text = gtk_combo_box_get_active_text(GTK_COMBO_BOX(divemaster));
  65                 old_text = dive->divemaster;
  66                 dive->divemaster = new_text;
  67                 add_people(new_text);
  68                 if (text_changed(old_text,dive->divemaster))
  69                         changed = 1;
  70                 if (old_text)
  71                         g_free(old_text);
  72         }
  73
  74         if (buddy_changed) {
  75                 char *new_text = gtk_combo_box_get_active_text(GTK_COMBO_BOX(buddy));
  76                 old_text = dive->buddy;
  77                 dive->buddy = new_text;
  78                 add_people(new_text);
  79                 if (text_changed(old_text,dive->buddy))
  80                         changed = 1;
  81                 if (old_text)
  82                         g_free(old_text);
  83         }
  84
  85         if (notes_changed) {
  86                 old_text = dive->notes;
  87                 dive->notes = get_text(notes);
  88                 if (text_changed(old_text,dive->notes))
  89                         changed = 1;
  90                 if (old_text)
  91                         g_free(old_text);
  92         }
  93         if (changed)
  94                 mark_divelist_changed(TRUE);
  95 }
  96
  97 static void set_combo_box_entry_text(GtkComboBoxEntry *combo_box, const char *text)
  98 {
  99         GtkEntry *entry = GTK_ENTRY(GTK_BIN(combo_box)->child);
 100         gtk_entry_set_text(entry, text);
 101 }
 102
 103 #define SET_TEXT_ENTRY(x) \
 104         set_combo_box_entry_text(x, dive && dive->x ? dive->x : "")
 105
 106 void show_dive_info(struct dive *dive)
 107 {
 108         struct tm *tm;
 109         const char *text;
 110         char buffer[80];
 111
 112         /* dive number and location (or lacking that, the date) go in the window title */
 113         tm = gmtime(&dive->when);
 114         text = dive->location;
 115         if (!text)
 116                 text = "";
 117         if (*text) {
 118                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s", dive->number, text);
 119         } else {
 120                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s %02d/%02d/%04d at %d:%02d",
 121                         dive->number,
 122                         weekday(tm->tm_wday),
 123                         tm->tm_mon+1, tm->tm_mday,
 124                         tm->tm_year+1900,
 125                         tm->tm_hour, tm->tm_min);
 126         }
 127         text = buffer;
 128         if (!dive->number)
 129                 text += 10;     /* Skip the "Dive #0 - " part */
 130         gtk_window_set_title(GTK_WINDOW(main_window), text);
 131
 132         SET_TEXT_ENTRY(divemaster);
 133         SET_TEXT_ENTRY(buddy);
 134         SET_TEXT_ENTRY(location);
 135         gtk_text_buffer_set_text(notes, dive && dive->notes ? dive->notes : "", -1);
 136 }
 137
 138 static GtkComboBoxEntry *text_entry(GtkWidget *box, const char *label, GtkListStore *completions)
 139 {
 140         GtkEntry *entry;
 141         GtkWidget *combo_box;
 142         GtkWidget *frame = gtk_frame_new(label);
 143         GtkEntryCompletion *completion;
 144
 145         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 146
 147         combo_box = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(completions), 0);
 148         gtk_container_add(GTK_CONTAINER(frame), combo_box);
 149
 150         entry = GTK_ENTRY(GTK_BIN(combo_box)->child);
 151
 152         completion = gtk_entry_completion_new();
 153         gtk_entry_completion_set_text_column(completion, 0);
 154         gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(completions));
 155         gtk_entry_completion_set_inline_completion(completion, TRUE);
 156         gtk_entry_completion_set_inline_selection(completion, TRUE);
 157         gtk_entry_completion_set_popup_single_match(completion, FALSE);
 158         gtk_entry_set_completion(entry, completion);
 159
 160         return GTK_COMBO_BOX_ENTRY(combo_box);
 161 }
 162
 163 static GtkTextBuffer *text_view(GtkWidget *box, const char *label)
 164 {
 165         GtkWidget *view, *vbox;
 166         GtkTextBuffer *buffer;
 167         GtkWidget *frame = gtk_frame_new(label);
 168
 169         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 170         box = gtk_hbox_new(FALSE, 3);
 171         gtk_container_add(GTK_CONTAINER(frame), box);
 172         vbox = gtk_vbox_new(FALSE, 3);
 173         gtk_container_add(GTK_CONTAINER(box), vbox);
 174
 175         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 176         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 177         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 178
 179         view = gtk_text_view_new();
 180         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 181         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 182
 183         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 184
 185         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 186         return buffer;
 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 GtkListStore *location_list, *people_list;
 228
 229 static void add_string_list_entry(const char *string, GtkListStore *list)
 230 {
 231         GtkTreeIter *iter, loc;
 232
 233         if (!string || !*string)
 234                 return;
 235
 236         switch (match_list(list, string)) {
 237         case MATCH_EXACT:
 238                 return;
 239         case MATCH_PREPEND:
 240                 iter = NULL;
 241                 break;
 242         case MATCH_AFTER:
 243                 iter = &string_entry_location;
 244                 break;
 245         }
 246         gtk_list_store_insert_after(list, &loc, iter);
 247         gtk_list_store_set(list, &loc, 0, string, -1);
 248 }
 249
 250 void add_people(const char *string)
 251 {
 252         add_string_list_entry(string, people_list);
 253 }
 254
 255 void add_location(const char *string)
 256 {
 257         add_string_list_entry(string, location_list);
 258 }
 259
 260 GtkWidget *extended_dive_info_widget(void)
 261 {
 262         GtkWidget *vbox, *hbox;
 263         vbox = gtk_vbox_new(FALSE, 6);
 264
 265         people_list = gtk_list_store_new(1, G_TYPE_STRING);
 266         location_list = gtk_list_store_new(1, G_TYPE_STRING);
 267
 268         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 269         location = text_entry(vbox, "Location", location_list);
 270
 271         hbox = gtk_hbox_new(FALSE, 3);
 272         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 273
 274         divemaster = text_entry(hbox, "Divemaster", people_list);
 275         buddy = text_entry(hbox, "Buddy", people_list);
 276
 277         notes = text_view(vbox, "Notes");
 278         return vbox;
 279 }