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 <ctime>
  25
  26 #include "filedata.h"
  27 #include "pan-item.h"
  28 #include "pan-types.h"
  29 #include "pan-util.h"
  30 #include "pan-view-filter.h"
  31 #include "pan-view.h"
  32 #include "typedefs.h"
  33
  34 void pan_timeline_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
  35 {
  36         GList *list;
  37         GList *work;
  38         gint x;
  39         gint y;
  40         time_t group_start_date;
  41         gint total;
  42         gint count;
  43         PanItem *pi_month = nullptr;
  44         PanItem *pi_day = nullptr;
  45         gint month_start;
  46         gint day_start;
  47         gint x_width;
  48         gint y_height;
  49
  50         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, TRUE, pw->ignore_symlinks);
  51         pan_filter_fd_list(&list, pw->filter_ui->filter_elements, pw->filter_ui->filter_classes);
  52
  53         if (pw->cache_list && pw->exif_date_enable)
  54                 {
  55                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE, TRUE);
  56                 list = filelist_sort(list, SORT_NAME, TRUE, TRUE);
  57                 pan_cache_sync_date(pw, list);
  58                 }
  59
  60         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE, TRUE);
  61         list = filelist_sort(list, SORT_TIME, TRUE, TRUE);
  62
  63         *width = PAN_BOX_BORDER * 2;
  64         *height = PAN_BOX_BORDER * 2;
  65
  66         x = 0;
  67         y = 0;
  68         month_start = y;
  69         day_start = month_start;
  70         x_width = 0;
  71         y_height = 0;
  72         group_start_date = 0;
  73         // total and count are used to enforce a stride of PAN_GROUP_MAX thumbs.
  74         total = 0;
  75         count = 0;
  76         work = list;
  77         while (work)
  78                 {
  79                 FileData *fd;
  80                 PanItem *pi;
  81
  82                 fd = static_cast<FileData *>(work->data);
  83                 work = work->next;
  84
  85                 if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_DAY))
  86                         {
  87                         // FD starts a new day group.
  88                         GList *needle;
  89                         gchar *buf;
  90
  91                         if (!pan_date_compare(fd->date, group_start_date, PAN_DATE_LENGTH_MONTH))
  92                                 {
  93                                 // FD starts a new month group.
  94                                 pi_day = nullptr;
  95
  96                                 if (pi_month)
  97                                         {
  98                                         x = pi_month->x + pi_month->width + PAN_BOX_BORDER;
  99                                         }
 100                                 else
 101                                         {
 102                                         x = PAN_BOX_BORDER;
 103                                         }
 104
 105                                 y = PAN_BOX_BORDER;
 106
 107                                 buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_MONTH);
 108                                 pi = pan_item_text_new(pw, x, y, buf,
 109                                                        static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 110                                                        PAN_BORDER_3,
 111                                                        PAN_TEXT_COLOR, 255);
 112                                 g_free(buf);
 113                                 y += pi->height;
 114
 115                                 pi_month = pan_item_box_new(pw, file_data_ref(fd),
 116                                                             x, y, 0, 0,
 117                                                             PAN_BOX_OUTLINE_THICKNESS,
 118                                                             PAN_BOX_COLOR, PAN_BOX_ALPHA,
 119                                                             PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 120
 121                                 x += PAN_BOX_BORDER;
 122                                 y += PAN_BOX_BORDER;
 123                                 month_start = y;
 124                                 }
 125
 126                         if (pi_day) x = pi_day->x + pi_day->width + PAN_BOX_BORDER;
 127
 128                         group_start_date = fd->date;
 129                         total = 1;
 130                         count = 0;
 131
 132                         needle = work;
 133                         while (needle)
 134                                 {
 135                                 FileData *nfd;
 136
 137                                 nfd = static_cast<FileData *>(needle->data);
 138                                 if (pan_date_compare(nfd->date, group_start_date, PAN_DATE_LENGTH_DAY))
 139                                         {
 140                                         needle = needle->next;
 141                                         total++;
 142                                         }
 143                                 else
 144                                         {
 145                                         needle = nullptr;
 146                                         }
 147                                 }
 148
 149                         buf = pan_date_value_string(fd->date, PAN_DATE_LENGTH_WEEK);
 150                         pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 151                                                PAN_BORDER_3,
 152                                                PAN_TEXT_COLOR, 255);
 153                         g_free(buf);
 154
 155                         y += pi->height;
 156
 157                         pi_day = pan_item_box_new(pw, file_data_ref(fd), x, y, 0, 0,
 158                                                   PAN_BOX_OUTLINE_THICKNESS,
 159                                                   PAN_BOX_COLOR, PAN_BOX_ALPHA,
 160                                                   PAN_BOX_OUTLINE_COLOR, PAN_BOX_OUTLINE_ALPHA);
 161
 162                         x += PAN_BOX_BORDER;
 163                         y += PAN_BOX_BORDER;
 164                         day_start = y;
 165                         }
 166
 167                 if (pw->size > PAN_IMAGE_SIZE_THUMB_LARGE)
 168                         {
 169                         pi = pan_item_image_new(pw, fd, x, y, 10, 10);
 170                         if (pi->width > x_width) x_width = pi->width;
 171                         y_height = pi->height;
 172                         }
 173                 else
 174                         {
 175                         pi = pan_item_thumb_new(pw, fd, x, y);
 176                         x_width = PAN_THUMB_SIZE;
 177                         y_height = PAN_THUMB_SIZE;
 178                         }
 179
 180                 pan_item_size_by_item(pi_day, pi, PAN_BOX_BORDER);
 181                 pan_item_size_by_item(pi_month, pi_day, PAN_BOX_BORDER);
 182
 183                 total--;
 184                 count++;
 185
 186                 if (total > 0 && count < PAN_GROUP_MAX)
 187                         {
 188                         y += y_height + PAN_THUMB_GAP;
 189                         }
 190                 else
 191                         {
 192                         x += x_width + PAN_THUMB_GAP;
 193                         x_width = 0;
 194                         count = 0;
 195
 196                         if (total > 0)
 197                                 y = day_start;
 198                         else
 199                                 y = month_start;
 200                         }
 201
 202                 pan_item_size_coordinates(pi_month, PAN_BOX_BORDER, width, height);
 203                 }
 204
 205         g_list_free(list);
 206 }
 207 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */