src/pan-view/pan-calendar.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-calendar.h"
  23
  24 #include <glib/gprintf.h>
  25 #include <math.h>
  26
  27 #include "pan-util.h"
  28 #include "pan-view.h"
  29 #include "pan-view-filter.h"
  30 #include "pixbuf_util.h"
  31
  32 #define PAN_CAL_POPUP_COLOR 220, 220, 220
  33 #define PAN_CAL_POPUP_ALPHA 255
  34 #define PAN_CAL_POPUP_BORDER 1
  35 #define PAN_CAL_POPUP_BORDER_COLOR 0, 0, 0
  36 #define PAN_CAL_POPUP_TEXT_COLOR 0, 0, 0
  37
  38 #define PAN_CAL_DAY_WIDTH 100
  39 #define PAN_CAL_DAY_HEIGHT 80
  40
  41 #define PAN_CAL_DAY_COLOR 255, 255, 255
  42 #define PAN_CAL_DAY_ALPHA 220
  43 #define PAN_CAL_DAY_BORDER 2
  44 #define PAN_CAL_DAY_BORDER_COLOR 0, 0, 0
  45 #define PAN_CAL_DAY_TEXT_COLOR 0, 0, 0
  46
  47 #define PAN_CAL_MONTH_COLOR 255, 255, 255
  48 #define PAN_CAL_MONTH_ALPHA 200
  49 #define PAN_CAL_MONTH_BORDER 4
  50 #define PAN_CAL_MONTH_BORDER_COLOR 0, 0, 0
  51 #define PAN_CAL_MONTH_TEXT_COLOR 0, 0, 0
  52
  53 #define PAN_CAL_DOT_SIZE 3
  54 #define PAN_CAL_DOT_GAP 2
  55 #define PAN_CAL_DOT_COLOR 128, 128, 128
  56 #define PAN_CAL_DOT_ALPHA 128
  57
  58
  59 /*
  60  *-----------------------------------------------------------------------------
  61  * calendar
  62  *-----------------------------------------------------------------------------
  63  */
  64
  65 void pan_calendar_update(PanWindow *pw, PanItem *pi_day)
  66 {
  67         PanItem *pbox;
  68         PanItem *pi;
  69         GList *list;
  70         GList *work;
  71         gint x1, y1, x2, y2, x3, y3;
  72         gint x, y, w, h;
  73         gint grid;
  74         gint column;
  75
  76         while ((pi = pan_item_find_by_key(pw, PAN_ITEM_NONE, "day_bubble"))) pan_item_remove(pw, pi);
  77
  78         if (!pi_day || pi_day->type != PAN_ITEM_BOX ||
  79             !pi_day->key || strcmp(pi_day->key, "day") != 0) return;
  80
  81         list = pan_layout_intersect(pw, pi_day->x, pi_day->y, pi_day->width, pi_day->height);
  82
  83         work = list;
  84         while (work)
  85                 {
  86                 PanItem *dot;
  87                 GList *node;
  88
  89                 dot = work->data;
  90                 node = work;
  91                 work = work->next;
  92
  93                 if (dot->type != PAN_ITEM_BOX || !dot->fd ||
  94                     !dot->key || strcmp(dot->key, "dot") != 0)
  95                         {
  96                         list = g_list_delete_link(list, node);
  97                         }
  98                 }
  99
 100         grid = (gint)(sqrt(g_list_length(list)) + 0.5);
 101
 102         x = pi_day->x + pi_day->width + 4;
 103         y = pi_day->y;
 104
 105         pbox = pan_item_box_new(pw, NULL, x, y, PAN_BOX_BORDER, PAN_BOX_BORDER,
 106                                 PAN_CAL_POPUP_BORDER,
 107                                 PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA,
 108                                 PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 109         pan_item_set_key(pbox, "day_bubble");
 110
 111         if (pi_day->fd)
 112                 {
 113                 PanItem *plabel;
 114                 gchar *buf;
 115
 116                 buf = pan_date_value_string(pi_day->fd->date, PAN_DATE_LENGTH_WEEK);
 117                 plabel = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING,
 118                                            PAN_TEXT_BORDER_SIZE,
 119                                            PAN_CAL_POPUP_TEXT_COLOR, 255);
 120                 pan_item_set_key(plabel, "day_bubble");
 121                 g_free(buf);
 122
 123                 pan_item_size_by_item(pbox, plabel, 0);
 124
 125                 y += plabel->height;
 126                 }
 127
 128         if (list)
 129                 {
 130                 column = 0;
 131
 132                 x += PAN_BOX_BORDER;
 133                 y += PAN_BOX_BORDER;
 134
 135                 work = list;
 136                 while (work)
 137                         {
 138                         PanItem *dot;
 139
 140                         dot = work->data;
 141                         work = work->next;
 142
 143                         if (dot->fd)
 144                                 {
 145                                 PanItem *pimg;
 146
 147                                 pimg = pan_item_thumb_new(pw, file_data_ref(dot->fd), x, y);
 148                                 pan_item_set_key(pimg, "day_bubble");
 149
 150                                 pan_item_size_by_item(pbox, pimg, PAN_BOX_BORDER);
 151
 152                                 column++;
 153                                 if (column < grid)
 154                                         {
 155                                         x += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 156                                         }
 157                                 else
 158                                         {
 159                                         column = 0;
 160                                         x = pbox->x + PAN_BOX_BORDER;
 161                                         y += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 162                                         }
 163                                 }
 164                         }
 165                 }
 166
 167         x1 = pi_day->x + pi_day->width - 8;
 168         y1 = pi_day->y + 8;
 169         x2 = pbox->x + 1;
 170         y2 = pbox->y + MIN(42, pbox->height);
 171         x3 = pbox->x + 1;
 172         y3 = MAX(pbox->y, y2 - 30);
 173         util_clip_triangle(x1, y1, x2, y2, x3, y3,
 174                            &x, &y, &w, &h);
 175
 176         pi = pan_item_tri_new(pw, NULL, x, y, w, h,
 177                               x1, y1, x2, y2, x3, y3,
 178                               PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA);
 179         pan_item_tri_border(pi, PAN_BORDER_1 | PAN_BORDER_3, PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 180         pan_item_set_key(pi, "day_bubble");
 181         pan_item_added(pw, pi);
 182
 183         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
 184         pan_item_added(pw, pbox);
 185
 186         pan_layout_resize(pw);
 187 }
 188
 189 void pan_calendar_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
 190 {
 191         GList *list;
 192         GList *work;
 193         gint x, y;
 194         time_t tc;
 195         gint count;
 196         gint day_max;
 197         gint grid;
 198         gint year = 0;
 199         gint month = 0;
 200         gint end_year = 0;
 201         gint end_month = 0;
 202
 203         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, pw->ignore_symlinks);
 204         pan_filter_fd_list(&list, pw->filter_ui->filter_elements);
 205
 206         if (pw->cache_list && pw->exif_date_enable)
 207                 {
 208                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE);
 209                 list = filelist_sort(list, SORT_NAME, TRUE);
 210                 pan_cache_sync_date(pw, list);
 211                 }
 212
 213         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE);
 214         list = filelist_sort(list, SORT_TIME, TRUE);
 215
 216         day_max = 0;
 217         count = 0;
 218         tc = 0;
 219         work = list;
 220         while (work)
 221                 {
 222                 FileData *fd;
 223
 224                 fd = work->data;
 225                 work = work->next;
 226
 227                 if (!pan_date_compare(fd->date, tc, PAN_DATE_LENGTH_DAY))
 228                         {
 229                         count = 0;
 230                         tc = fd->date;
 231                         }
 232                 else
 233                         {
 234                         count++;
 235                         if (day_max < count) day_max = count;
 236                         }
 237                 }
 238
 239         DEBUG_1("biggest day contains %d images", day_max);
 240
 241         grid = (gint)(sqrt((gdouble)day_max) + 0.5) * (PAN_THUMB_SIZE + PAN_SHADOW_OFFSET * 2 + PAN_THUMB_GAP);
 242
 243         if (list)
 244                 {
 245                 FileData *fd = list->data;
 246
 247                 year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 248                 month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 249                 }
 250
 251         work = g_list_last(list);
 252         if (work)
 253                 {
 254                 FileData *fd = work->data;
 255                 end_year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 256                 end_month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 257                 }
 258
 259         *width = PAN_BOX_BORDER * 2;
 260         *height = PAN_BOX_BORDER * 2;
 261
 262         x = PAN_BOX_BORDER;
 263         y = PAN_BOX_BORDER;
 264
 265         work = list;
 266         while (work && (year < end_year || (year == end_year && month <= end_month)))
 267                 {
 268                 PanItem *pi_month;
 269                 PanItem *pi_text;
 270                 gint day;
 271                 gint days;
 272                 gint col;
 273                 gint row;
 274                 time_t dt;
 275                 gchar *buf;
 276
 277                 /* figure last second of this month */
 278                 dt = pan_date_to_time((month == 12) ? year + 1 : year, (month == 12) ? 1 : month + 1, 1);
 279                 dt -= 60 * 60 * 24;
 280
 281                 /* anything to show this month? */
 282                 if (!pan_date_compare(((FileData *)(work->data))->date, dt, PAN_DATE_LENGTH_MONTH))
 283                         {
 284                         month ++;
 285                         if (month > 12)
 286                                 {
 287                                 year++;
 288                                 month = 1;
 289                                 }
 290                         continue;
 291                         }
 292
 293                 days = pan_date_value(dt, PAN_DATE_LENGTH_DAY);
 294                 dt = pan_date_to_time(year, month, 1);
 295                 col = pan_date_value(dt, PAN_DATE_LENGTH_WEEK);
 296                 row = 1;
 297
 298                 x = PAN_BOX_BORDER;
 299
 300                 pi_month = pan_item_box_new(pw, NULL, x, y, PAN_CAL_DAY_WIDTH * 7, PAN_CAL_DAY_HEIGHT / 4,
 301                                             PAN_CAL_MONTH_BORDER,
 302                                             PAN_CAL_MONTH_COLOR, PAN_CAL_MONTH_ALPHA,
 303                                             PAN_CAL_MONTH_BORDER_COLOR, PAN_CAL_MONTH_ALPHA);
 304                 buf = pan_date_value_string(dt, PAN_DATE_LENGTH_MONTH);
 305                 pi_text = pan_item_text_new(pw, x, y, buf,
 306                                             PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING,
 307                                             PAN_TEXT_BORDER_SIZE,
 308                                             PAN_CAL_MONTH_TEXT_COLOR, 255);
 309                 g_free(buf);
 310                 pi_text->x = pi_month->x + (pi_month->width - pi_text->width) / 2;
 311
 312                 pi_month->height = pi_text->y + pi_text->height - pi_month->y;
 313
 314                 x = PAN_BOX_BORDER + col * PAN_CAL_DAY_WIDTH;
 315                 y = pi_month->y + pi_month->height + PAN_BOX_BORDER;
 316
 317                 for (day = 1; day <= days; day++)
 318                         {
 319                         FileData *fd;
 320                         PanItem *pi_day;
 321                         gint dx, dy;
 322                         gint n = 0;
 323                         gchar fake_path[20];
 324
 325                         dt = pan_date_to_time(year, month, day);
 326
 327                         /*
 328                          * Create a FileData entry that represents the given day.
 329                          * It does not correspond to any real file
 330                          */
 331
 332                         g_snprintf(fake_path, sizeof(fake_path), "//%04d-%02d-%02d", year, month, day);
 333                         fd = file_data_new_no_grouping(fake_path);
 334                         fd->date = dt;
 335                         pi_day = pan_item_box_new(pw, fd, x, y, PAN_CAL_DAY_WIDTH, PAN_CAL_DAY_HEIGHT,
 336                                                   PAN_CAL_DAY_BORDER,
 337                                                   PAN_CAL_DAY_COLOR, PAN_CAL_DAY_ALPHA,
 338                                                   PAN_CAL_DAY_BORDER_COLOR, PAN_CAL_DAY_ALPHA);
 339                         pan_item_set_key(pi_day, "day");
 340
 341                         dx = x + PAN_CAL_DOT_GAP * 2;
 342                         dy = y + PAN_CAL_DOT_GAP * 2;
 343
 344                         fd = (work) ? work->data : NULL;
 345                         while (fd && pan_date_compare(fd->date, dt, PAN_DATE_LENGTH_DAY))
 346                                 {
 347                                 PanItem *pi;
 348
 349                                 pi = pan_item_box_new(pw, fd, dx, dy, PAN_CAL_DOT_SIZE, PAN_CAL_DOT_SIZE,
 350                                                       0,
 351                                                       PAN_CAL_DOT_COLOR, PAN_CAL_DOT_ALPHA,
 352                                                       0, 0, 0, 0);
 353                                 pan_item_set_key(pi, "dot");
 354
 355                                 dx += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 356                                 if (dx + PAN_CAL_DOT_SIZE > pi_day->x + pi_day->width - PAN_CAL_DOT_GAP * 2)
 357                                         {
 358                                         dx = x + PAN_CAL_DOT_GAP * 2;
 359                                         dy += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 360                                         }
 361                                 if (dy + PAN_CAL_DOT_SIZE > pi_day->y + pi_day->height - PAN_CAL_DOT_GAP * 2)
 362                                         {
 363                                         /* must keep all dots within respective day even if it gets ugly */
 364                                         dy = y + PAN_CAL_DOT_GAP * 2;
 365                                         }
 366
 367                                 n++;
 368
 369                                 work = work->next;
 370                                 fd = (work) ? work->data : NULL;
 371                                 }
 372
 373                         if (n > 0)
 374                                 {
 375                                 PanItem *pi;
 376
 377                                 pi_day->color_r = MAX(pi_day->color_r - 61 - n * 3, 80);
 378                                 pi_day->color_g = pi_day->color_r;
 379
 380                                 buf = g_strdup_printf("( %d )", n);
 381                                 pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 382                                                        PAN_TEXT_BORDER_SIZE,
 383                                                        PAN_CAL_DAY_TEXT_COLOR, 255);
 384                                 g_free(buf);
 385
 386                                 pi->x = pi_day->x + (pi_day->width - pi->width) / 2;
 387                                 pi->y = pi_day->y + (pi_day->height - pi->height) / 2;
 388                                 }
 389
 390                         buf = g_strdup_printf("%d", day);
 391                         pan_item_text_new(pw, x + 4, y + 4, buf, PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING,
 392                                           PAN_TEXT_BORDER_SIZE,
 393                                           PAN_CAL_DAY_TEXT_COLOR, 255);
 394                         g_free(buf);
 395
 396
 397                         pan_item_size_coordinates(pi_day, PAN_BOX_BORDER, width, height);
 398
 399                         col++;
 400                         if (col > 6)
 401                                 {
 402                                 col = 0;
 403                                 row++;
 404                                 x = PAN_BOX_BORDER;
 405                                 y += PAN_CAL_DAY_HEIGHT;
 406                                 }
 407                         else
 408                                 {
 409                                 x += PAN_CAL_DAY_WIDTH;
 410                                 }
 411                         }
 412
 413                 if (col > 0) y += PAN_CAL_DAY_HEIGHT;
 414                 y += PAN_BOX_BORDER * 2;
 415
 416                 month ++;
 417                 if (month > 12)
 418                         {
 419                         year++;
 420                         month = 1;
 421                         }
 422                 }
 423
 424         *width += grid;
 425         *height = MAX(*height, grid + PAN_BOX_BORDER * 2 * 2);
 426
 427         g_list_free(list);
 428 }
 429 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */