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 GtkEntry *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                 old_text = dive->location;
  54                 dive->location = gtk_editable_get_chars(GTK_EDITABLE(location), 0, -1);
  55                 if (text_changed(old_text,dive->location))
  56                         changed = 1;
  57                 if (old_text)
  58                         g_free(old_text);
  59         }
  60
  61         if (divemaster_changed) {
  62                 old_text = dive->divemaster;
  63                 dive->divemaster = gtk_editable_get_chars(GTK_EDITABLE(divemaster), 0, -1);
  64                 if (text_changed(old_text,dive->divemaster))
  65                         changed = 1;
  66                 if (old_text)
  67                         g_free(old_text);
  68         }
  69
  70         if (buddy_changed) {
  71                 old_text = dive->buddy;
  72                 dive->buddy = gtk_editable_get_chars(GTK_EDITABLE(buddy), 0, -1);
  73                 if (text_changed(old_text,dive->buddy))
  74                         changed = 1;
  75                 if (old_text)
  76                         g_free(old_text);
  77         }
  78
  79         if (notes_changed) {
  80                 old_text = dive->notes;
  81                 dive->notes = get_text(notes);
  82                 if (text_changed(old_text,dive->notes))
  83                         changed = 1;
  84                 if (old_text)
  85                         g_free(old_text);
  86         }
  87         if (changed)
  88                 mark_divelist_changed(TRUE);
  89 }
  90
  91 #define SET_TEXT_ENTRY(x) \
  92         gtk_entry_set_text(x, dive && dive->x ? dive->x : "")
  93
  94 void show_dive_info(struct dive *dive)
  95 {
  96         struct tm *tm;
  97         const char *text;
  98         char buffer[80];
  99
 100         /* dive number and location (or lacking that, the date) go in the window title */
 101         tm = gmtime(&dive->when);
 102         text = dive->location;
 103         if (!text)
 104                 text = "";
 105         if (*text) {
 106                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s", dive->number, text);
 107         } else {
 108                 snprintf(buffer, sizeof(buffer), "Dive #%d - %s %02d/%02d/%04d at %d:%02d",
 109                         dive->number,
 110                         weekday(tm->tm_wday),
 111                         tm->tm_mon+1, tm->tm_mday,
 112                         tm->tm_year+1900,
 113                         tm->tm_hour, tm->tm_min);
 114         }
 115         text = buffer;
 116         if (!dive->number)
 117                 text += 10;     /* Skip the "Dive #0 - " part */
 118         gtk_window_set_title(GTK_WINDOW(main_window), text);
 119
 120         SET_TEXT_ENTRY(divemaster);
 121         SET_TEXT_ENTRY(buddy);
 122         SET_TEXT_ENTRY(location);
 123         gtk_text_buffer_set_text(notes, dive && dive->notes ? dive->notes : "", -1);
 124 }
 125
 126 static GtkEntry *text_entry(GtkWidget *box, const char *label)
 127 {
 128         GtkWidget *entry;
 129         GtkWidget *frame = gtk_frame_new(label);
 130
 131         gtk_box_pack_start(GTK_BOX(box), frame, FALSE, TRUE, 0);
 132
 133         entry = gtk_entry_new();
 134         gtk_container_add(GTK_CONTAINER(frame), entry);
 135
 136         return GTK_ENTRY(entry);
 137 }
 138
 139 static GtkTextBuffer *text_view(GtkWidget *box, const char *label)
 140 {
 141         GtkWidget *view, *vbox;
 142         GtkTextBuffer *buffer;
 143         GtkWidget *frame = gtk_frame_new(label);
 144
 145         gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 0);
 146         box = gtk_hbox_new(FALSE, 3);
 147         gtk_container_add(GTK_CONTAINER(frame), box);
 148         vbox = gtk_vbox_new(FALSE, 3);
 149         gtk_container_add(GTK_CONTAINER(box), vbox);
 150
 151         GtkWidget* scrolled_window = gtk_scrolled_window_new(0, 0);
 152         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 153         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolled_window), GTK_SHADOW_IN);
 154
 155         view = gtk_text_view_new();
 156         gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(view), GTK_WRAP_WORD);
 157         gtk_container_add(GTK_CONTAINER(scrolled_window), view);
 158
 159         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
 160
 161         gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);
 162         return buffer;
 163 }
 164
 165 GtkWidget *extended_dive_info_widget(void)
 166 {
 167         GtkWidget *vbox, *hbox;
 168         vbox = gtk_vbox_new(FALSE, 6);
 169
 170         gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
 171         location = text_entry(vbox, "Location");
 172
 173         hbox = gtk_hbox_new(FALSE, 3);
 174         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
 175
 176         divemaster = text_entry(hbox, "Divemaster");
 177         buddy = text_entry(hbox, "Buddy");
 178
 179         notes = text_view(vbox, "Notes");
 180         return vbox;
 181 }