src/pan-view/pan-timeline.c

   1 /*
   2  * Copyright (C) 2006 John Ellis
   3  * Copyright (C) 2008 - 2016 The Geeqie Team
   4  *
   5  * Author: John Ellis
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #include "pan-timeline.h"
  23
  24 #include "pan-item.h"
  25 #include "pan-util.h"
  26 #include "pan-view.h"
  27 #include "pan-view-filter.h"
  28
  29 void pan_timeline_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
  30 {
  31         GList *list;
  32         GList *work;
  33         gint x, y;
  34         time_t group_start_date;
  35         gint total;
  36         gint count;
  37         PanItem *pi_month = NULL;
  38         PanItem *pi_day = NULL;
  39         gint month_start;
  40         gint day_start;
  41         gint x_width;
  42         gint y_height;
  43
  44         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, pw->ignore_symlinks);
  45         gboolean changed = pan_filter_fd_list(&list, pw->filter_ui->filter_elements);
  46
  47         if (pw->cache_list && pw->exif_date_enable)
  48                 {
  49                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE);
  50                 list = filelist_sort(list, SORT_NAME, TRUE);
  51                 pan_cache_sync_date(pw, list);
  52                 }
  53
  54         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE);
  55         list = filelist_sort(list, SORT_TIME, TRUE);
  56
  57         *width = PAN_BOX_BORDER * 2;
  58         *height = PAN_BOX_BORDER * 2;
  59
  60         x = 0;
  61         y = 0;
  62         month_start = y;
  63         day_start = month_start;
  64         x_width = 0;
  65         y_height = 0;
  66         group_start_date = 0;
  67         // total and count are used to enforce a stride of PAN_GROUP_MAX thumbs.
  68         total = 0;
  69         count = 0;
  70         work = list;
  71         while (work)
  72                 {
  73                 FileData *fd;
  74                 PanItem *pi;
  75
  76                 fd = work->data;
  77                 work = work->next;
  78
  79                 if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_DAY))
  80                         {
  81                         // FD starts a new day group.
  82                         GList *needle;
  83                         gchar *buf;
  84
  85                         if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_MONTH))
  86                                 {
  87                                 // FD starts a new month group.
  88                                 pi_day = NULL;
  89
  90                                 if (pi_month)
  91                                         {
  92                                         x = pi_month->x + pi_month->width + PAN_BOX_BORDER;
  93                                         }
  94                                 else
  95                                         {
  96                                         x = PAN_BOX_BORDER;
  97                                         }
  98
  99                                 y = PAN_BOX_BORDER;
 100
 101                                 buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_MONTH);
 102                                 pi = pan_item_text_new(pw, x, y, buf,
 103                                                        PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING,
 104                                                        PAN_TEXT_BORDER_SIZE,
 105                                                        PAN_TEXT_COLOR, 255);
 106                                 g_free(buf);
 107                                 y += pi->height;
 108
 109                                 pi_month = pan_item_box_new(pw, file_data_ref(fd),
 110                                                             x, y, 0, 0,
 111                                                             PAN_BOX_OUTLINE_THICKNESS,
 112                                                             PAN_BOX_COLOR, PAN_BOX_ALPHA,
 113                                                             PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 114
 115                                 x += PAN_BOX_BORDER;
 116                                 y += PAN_BOX_BORDER;
 117                                 month_start = y;
 118                                 }
 119
 120                         if (pi_day) x = pi_day->x + pi_day->width + PAN_BOX_BORDER;
 121
 122                         group_start_date = fd->date;
 123                         total = 1;
 124                         count = 0;
 125
 126                         needle = work;
 127                         while (needle)
 128                                 {
 129                                 FileData *nfd;
 130
 131                                 nfd = needle->data;
 132                                 if (pan_date_compare(nfd->date, group_start_date, PAN_DATE_LENGTH_DAY))
 133                                         {
 134                                         needle = needle->next;
 135                                         total++;
 136                                         }
 137                                 else
 138                                         {
 139                                         needle = NULL;
 140                                         }
 141                                 }
 142
 143                         buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_WEEK);
 144                         pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 145                                                PAN_TEXT_BORDER_SIZE,
 146                                                PAN_TEXT_COLOR, 255);
 147                         g_free(buf);
 148
 149                         y += pi->height;
 150
 151                         pi_day = pan_item_box_new(pw, file_data_ref(fd), x, y, 0, 0,
 152                                                   PAN_BOX_OUTLINE_THICKNESS,
 153                                                   PAN_BOX_COLOR, PAN_BOX_ALPHA,
 154                                                   PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 155
 156                         x += PAN_BOX_BORDER;
 157                         y += PAN_BOX_BORDER;
 158                         day_start = y;
 159                         }
 160
 161                 if (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE)
 162                         {
 163                         pi = pan_item_image_new(pw, fd, x, y, 10, 10);
 164                         if (pi->width > x_width) x_width = pi->width;
 165                         y_height = pi->height;
 166                         }
 167                 else
 168                         {
 169                         pi = pan_item_thumb_new(pw, fd, x, y);
 170                         x_width = PAN_THUMB_SIZE;
 171                         y_height = PAN_THUMB_SIZE;
 172                         }
 173
 174                 pan_item_size_by_item(pi_day, pi, PAN_BOX_BORDER);
 175                 pan_item_size_by_item(pi_month, pi_day, PAN_BOX_BORDER);
 176
 177                 total--;
 178                 count++;
 179
 180                 if (total > 0 && count < PAN_GROUP_MAX)
 181                         {
 182                         y += y_height + PAN_THUMB_GAP;
 183                         }
 184                 else
 185                         {
 186                         x += x_width + PAN_THUMB_GAP;
 187                         x_width = 0;
 188                         count = 0;
 189
 190                         if (total > 0)
 191                                 y = day_start;
 192                         else
 193                                 y = month_start;
 194                         }
 195
 196                 pan_item_size_coordinates(pi_month, PAN_BOX_BORDER, width, height);
 197                 }
 198
 199         g_list_free(list);
 200 }
 201 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */