src/pan-view/pan-timeline.cc

   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-filter.h"
  27 #include "pan-view.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;
  34         gint y;
  35         time_t group_start_date;
  36         gint total;
  37         gint count;
  38         PanItem *pi_month = nullptr;
  39         PanItem *pi_day = nullptr;
  40         gint month_start;
  41         gint day_start;
  42         gint x_width;
  43         gint y_height;
  44
  45         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, TRUE, pw->ignore_symlinks);
  46         pan_filter_fd_list(&list, pw->filter_ui->filter_elements, pw->filter_ui->filter_classes);
  47
  48         if (pw->cache_list && pw->exif_date_enable)
  49                 {
  50                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE, TRUE);
  51                 list = filelist_sort(list, SORT_NAME, TRUE, TRUE);
  52                 pan_cache_sync_date(pw, list);
  53                 }
  54
  55         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE, TRUE);
  56         list = filelist_sort(list, SORT_TIME, TRUE, TRUE);
  57
  58         *width = PAN_BOX_BORDER * 2;
  59         *height = PAN_BOX_BORDER * 2;
  60
  61         x = 0;
  62         y = 0;
  63         month_start = y;
  64         day_start = month_start;
  65         x_width = 0;
  66         y_height = 0;
  67         group_start_date = 0;
  68         // total and count are used to enforce a stride of PAN_GROUP_MAX thumbs.
  69         total = 0;
  70         count = 0;
  71         work = list;
  72         while (work)
  73                 {
  74                 FileData *fd;
  75                 PanItem *pi;
  76
  77                 fd = static_cast<FileData *>(work->data);
  78                 work = work->next;
  79
  80                 if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_DAY))
  81                         {
  82                         // FD starts a new day group.
  83                         GList *needle;
  84                         gchar *buf;
  85
  86                         if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_MONTH))
  87                                 {
  88                                 // FD starts a new month group.
  89                                 pi_day = nullptr;
  90
  91                                 if (pi_month)
  92                                         {
  93                                         x = pi_month->x + pi_month->width + PAN_BOX_BORDER;
  94                                         }
  95                                 else
  96                                         {
  97                                         x = PAN_BOX_BORDER;
  98                                         }
  99
 100                                 y = PAN_BOX_BORDER;
 101
 102                                 buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_MONTH);
 103                                 pi = pan_item_text_new(pw, x, y, buf,
 104                                                        static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 105                                                        PAN_BORDER_3,
 106                                                        PAN_TEXT_COLOR, 255);
 107                                 g_free(buf);
 108                                 y += pi->height;
 109
 110                                 pi_month = pan_item_box_new(pw, file_data_ref(fd),
 111                                                             x, y, 0, 0,
 112                                                             PAN_BOX_OUTLINE_THICKNESS,
 113                                                             PAN_BOX_COLOR, PAN_BOX_ALPHA,
 114                                                             PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 115
 116                                 x += PAN_BOX_BORDER;
 117                                 y += PAN_BOX_BORDER;
 118                                 month_start = y;
 119                                 }
 120
 121                         if (pi_day) x = pi_day->x + pi_day->width + PAN_BOX_BORDER;
 122
 123                         group_start_date = fd->date;
 124                         total = 1;
 125                         count = 0;
 126
 127                         needle = work;
 128                         while (needle)
 129                                 {
 130                                 FileData *nfd;
 131
 132                                 nfd = static_cast<FileData *>(needle->data);
 133                                 if (pan_date_compare(nfd->date, group_start_date, PAN_DATE_LENGTH_DAY))
 134                                         {
 135                                         needle = needle->next;
 136                                         total++;
 137                                         }
 138                                 else
 139                                         {
 140                                         needle = nullptr;
 141                                         }
 142                                 }
 143
 144                         buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_WEEK);
 145                         pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 146                                                PAN_BORDER_3,
 147                                                PAN_TEXT_COLOR, 255);
 148                         g_free(buf);
 149
 150                         y += pi->height;
 151
 152                         pi_day = pan_item_box_new(pw, file_data_ref(fd), x, y, 0, 0,
 153                                                   PAN_BOX_OUTLINE_THICKNESS,
 154                                                   PAN_BOX_COLOR, PAN_BOX_ALPHA,
 155                                                   PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 156
 157                         x += PAN_BOX_BORDER;
 158                         y += PAN_BOX_BORDER;
 159                         day_start = y;
 160                         }
 161
 162                 if (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE)
 163                         {
 164                         pi = pan_item_image_new(pw, fd, x, y, 10, 10);
 165                         if (pi->width > x_width) x_width = pi->width;
 166                         y_height = pi->height;
 167                         }
 168                 else
 169                         {
 170                         pi = pan_item_thumb_new(pw, fd, x, y);
 171                         x_width = PAN_THUMB_SIZE;
 172                         y_height = PAN_THUMB_SIZE;
 173                         }
 174
 175                 pan_item_size_by_item(pi_day, pi, PAN_BOX_BORDER);
 176                 pan_item_size_by_item(pi_month, pi_day, PAN_BOX_BORDER);
 177
 178                 total--;
 179                 count++;
 180
 181                 if (total > 0 && count < PAN_GROUP_MAX)
 182                         {
 183                         y += y_height + PAN_THUMB_GAP;
 184                         }
 185                 else
 186                         {
 187                         x += x_width + PAN_THUMB_GAP;
 188                         x_width = 0;
 189                         count = 0;
 190
 191                         if (total > 0)
 192                                 y = day_start;
 193                         else
 194                                 y = month_start;
 195                         }
 196
 197                 pan_item_size_coordinates(pi_month, PAN_BOX_BORDER, width, height);
 198                 }
 199
 200         g_list_free(list);
 201 }
 202 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */