src/pan-view/pan-calendar.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-calendar.h"
  23
  24 #include <cmath>
  25
  26 #include "misc.h"
  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 enum {
  34         PAN_CAL_POPUP_ALPHA = 255,
  35         PAN_CAL_POPUP_BORDER = 1
  36 };
  37 #define PAN_CAL_POPUP_BORDER_COLOR 0, 0, 0
  38 #define PAN_CAL_POPUP_TEXT_COLOR 0, 0, 0
  39
  40 enum {
  41         PAN_CAL_DAY_WIDTH = 100,
  42         PAN_CAL_DAY_HEIGHT = 80
  43 };
  44
  45 #define PAN_CAL_DAY_COLOR 255, 255, 255
  46 enum {
  47         PAN_CAL_DAY_ALPHA = 220,
  48         PAN_CAL_DAY_BORDER = 2
  49 };
  50 #define PAN_CAL_DAY_BORDER_COLOR 0, 0, 0
  51 #define PAN_CAL_DAY_TEXT_COLOR 0, 0, 0
  52
  53 #define PAN_CAL_MONTH_COLOR 255, 255, 255
  54 enum {
  55         PAN_CAL_MONTH_ALPHA = 200,
  56         PAN_CAL_MONTH_BORDER = 4
  57 };
  58 #define PAN_CAL_MONTH_BORDER_COLOR 0, 0, 0
  59 #define PAN_CAL_MONTH_TEXT_COLOR 0, 0, 0
  60
  61 enum {
  62         PAN_CAL_DOT_SIZE = 3,
  63         PAN_CAL_DOT_GAP = 2
  64 };
  65 #define PAN_CAL_DOT_COLOR 128, 128, 128
  66 enum {
  67         PAN_CAL_DOT_ALPHA = 128
  68 };
  69
  70 #define PAN_CAL_DAY_OF_WEEK_COLOR 128, 128, 128
  71
  72 /*
  73  *-----------------------------------------------------------------------------
  74  * calendar
  75  *-----------------------------------------------------------------------------
  76  */
  77
  78 void pan_calendar_update(PanWindow *pw, PanItem *pi_day)
  79 {
  80         PanItem *pbox;
  81         PanItem *pi;
  82         GList *list;
  83         GList *work;
  84         gint x1;
  85         gint y1;
  86         gint x2;
  87         gint y2;
  88         gint x3;
  89         gint y3;
  90         gint x;
  91         gint y;
  92         gint w;
  93         gint h;
  94         gint grid;
  95         gint column;
  96
  97         while ((pi = pan_item_find_by_key(pw, PAN_ITEM_NONE, "day_bubble"))) pan_item_remove(pw, pi);
  98
  99         if (!pi_day || pi_day->type != PAN_ITEM_BOX ||
 100             !pi_day->key || strcmp(pi_day->key, "day") != 0) return;
 101
 102         list = pan_layout_intersect(pw, pi_day->x, pi_day->y, pi_day->width, pi_day->height);
 103
 104         work = list;
 105         while (work)
 106                 {
 107                 PanItem *dot;
 108                 GList *node;
 109
 110                 dot = static_cast<PanItem *>(work->data);
 111                 node = work;
 112                 work = work->next;
 113
 114                 if (dot->type != PAN_ITEM_BOX || !dot->fd ||
 115                     !dot->key || strcmp(dot->key, "dot") != 0)
 116                         {
 117                         list = g_list_delete_link(list, node);
 118                         }
 119                 }
 120
 121         grid = static_cast<gint>(sqrt(g_list_length(list)) + 0.5);
 122
 123         x = pi_day->x + pi_day->width + 4;
 124         y = pi_day->y;
 125
 126         pbox = pan_item_box_new(pw, nullptr, x, y, PAN_BOX_BORDER, PAN_BOX_BORDER,
 127                                 PAN_CAL_POPUP_BORDER,
 128                                 PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA,
 129                                 PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 130         pan_item_set_key(pbox, "day_bubble");
 131
 132         if (pi_day->fd)
 133                 {
 134                 PanItem *plabel;
 135                 gchar *buf;
 136
 137                 buf = pan_date_value_string(pi_day->fd->date, PAN_DATE_LENGTH_WEEK);
 138                 plabel = pan_item_text_new(pw, x, y, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 139                                            PAN_BORDER_3,
 140                                            PAN_CAL_POPUP_TEXT_COLOR, 255);
 141                 pan_item_set_key(plabel, "day_bubble");
 142                 g_free(buf);
 143
 144                 pan_item_size_by_item(pbox, plabel, 0);
 145
 146                 y += plabel->height;
 147                 }
 148
 149         if (list)
 150                 {
 151                 column = 0;
 152
 153                 x += PAN_BOX_BORDER;
 154                 y += PAN_BOX_BORDER;
 155
 156                 work = list;
 157                 while (work)
 158                         {
 159                         PanItem *dot;
 160
 161                         dot = static_cast<PanItem *>(work->data);
 162                         work = work->next;
 163
 164                         if (dot->fd)
 165                                 {
 166                                 PanItem *pimg;
 167
 168                                 pimg = pan_item_thumb_new(pw, file_data_ref(dot->fd), x, y);
 169                                 pan_item_set_key(pimg, "day_bubble");
 170
 171                                 pan_item_size_by_item(pbox, pimg, PAN_BOX_BORDER);
 172
 173                                 column++;
 174                                 if (column < grid)
 175                                         {
 176                                         x += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 177                                         }
 178                                 else
 179                                         {
 180                                         column = 0;
 181                                         x = pbox->x + PAN_BOX_BORDER;
 182                                         y += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 183                                         }
 184                                 }
 185                         }
 186                 }
 187
 188         x1 = pi_day->x + pi_day->width - 8;
 189         y1 = pi_day->y + 8;
 190         x2 = pbox->x + 1;
 191         y2 = pbox->y + MIN(42, pbox->height);
 192         x3 = pbox->x + 1;
 193         y3 = MAX(pbox->y, y2 - 30);
 194         util_clip_triangle(x1, y1, x2, y2, x3, y3,
 195                            &x, &y, &w, &h);
 196
 197         pi = pan_item_tri_new(pw, nullptr, x, y, w, h,
 198                               x1, y1, x2, y2, x3, y3,
 199                               PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA);
 200         pan_item_tri_border(pi, PAN_BORDER_1 | PAN_BORDER_3, PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 201         pan_item_set_key(pi, "day_bubble");
 202         pan_item_added(pw, pi);
 203
 204         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
 205         pan_item_added(pw, pbox);
 206
 207         pan_layout_resize(pw);
 208 }
 209
 210 void pan_calendar_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
 211 {
 212         GList *list;
 213         GList *work;
 214         gint x;
 215         gint y;
 216         time_t tc;
 217         gint count;
 218         gint day_max;
 219         gint grid;
 220         gint year = 0;
 221         gint month = 0;
 222         gint end_year = 0;
 223         gint end_month = 0;
 224         gint day_of_week;
 225
 226         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, TRUE, pw->ignore_symlinks);
 227         pan_filter_fd_list(&list, pw->filter_ui->filter_elements, pw->filter_ui->filter_classes);
 228
 229         if (pw->cache_list && pw->exif_date_enable)
 230                 {
 231                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE, TRUE);
 232                 list = filelist_sort(list, SORT_NAME, TRUE, TRUE);
 233                 pan_cache_sync_date(pw, list);
 234                 }
 235
 236         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE, TRUE);
 237         list = filelist_sort(list, SORT_TIME, TRUE, TRUE);
 238
 239         day_max = 0;
 240         count = 0;
 241         tc = 0;
 242         work = list;
 243         while (work)
 244                 {
 245                 FileData *fd;
 246
 247                 fd = static_cast<FileData *>(work->data);
 248                 work = work->next;
 249
 250                 if (!pan_date_compare(fd->date, tc, PAN_DATE_LENGTH_DAY))
 251                         {
 252                         count = 0;
 253                         tc = fd->date;
 254                         }
 255                 else
 256                         {
 257                         count++;
 258                         if (day_max < count) day_max = count;
 259                         }
 260                 }
 261
 262         DEBUG_1("biggest day contains %d images", day_max);
 263
 264         grid = static_cast<gint>(sqrt(static_cast<gdouble>(day_max)) + 0.5) * (PAN_THUMB_SIZE + PAN_SHADOW_OFFSET * 2 + PAN_THUMB_GAP);
 265
 266         if (list)
 267                 {
 268                 auto fd = static_cast<FileData *>(list->data);
 269
 270                 year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 271                 month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 272                 }
 273
 274         work = g_list_last(list);
 275         if (work)
 276                 {
 277                 auto fd = static_cast<FileData *>(work->data);
 278                 end_year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 279                 end_month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 280                 }
 281
 282         *width = PAN_BOX_BORDER * 2;
 283         *height = PAN_BOX_BORDER * 2;
 284
 285         x = PAN_BOX_BORDER;
 286         y = PAN_BOX_BORDER;
 287
 288         work = list;
 289         while (work && (year < end_year || (year == end_year && month <= end_month)))
 290                 {
 291                 PanItem *pi_month;
 292                 PanItem *pi_text;
 293                 PanItem *pi_day_number;
 294                 gint day;
 295                 gint days;
 296                 gint col;
 297                 gint row;
 298                 time_t dt;
 299                 gchar *buf;
 300
 301                 /* figure last second of this month */
 302                 dt = pan_date_to_time((month == 12) ? year + 1 : year, (month == 12) ? 1 : month + 1, 1);
 303                 dt -= 60 * 60 * 24;
 304
 305                 /* anything to show this month? */
 306                 if (!pan_date_compare((static_cast<FileData *>(work->data))->date, dt, PAN_DATE_LENGTH_MONTH))
 307                         {
 308                         month ++;
 309                         if (month > 12)
 310                                 {
 311                                 year++;
 312                                 month = 1;
 313                                 }
 314                         continue;
 315                         }
 316
 317                 days = pan_date_value(dt, PAN_DATE_LENGTH_DAY);
 318                 dt = pan_date_to_time(year, month, 1);
 319                 col = pan_date_value(dt, PAN_DATE_LENGTH_WEEK);
 320                 col = col - (date_get_first_day_of_week() - 1);
 321                 if (col < 0) col = col + 7;
 322                 row = 1;
 323
 324                 x = PAN_BOX_BORDER;
 325
 326                 pi_month = pan_item_box_new(pw, nullptr, x, y, PAN_CAL_DAY_WIDTH * 7, PAN_CAL_DAY_HEIGHT / 4,
 327                                             PAN_CAL_MONTH_BORDER,
 328                                             PAN_CAL_MONTH_COLOR, PAN_CAL_MONTH_ALPHA,
 329                                             PAN_CAL_MONTH_BORDER_COLOR, PAN_CAL_MONTH_ALPHA);
 330                 buf = pan_date_value_string(dt, PAN_DATE_LENGTH_MONTH);
 331                 pi_text = pan_item_text_new(pw, x, y, buf,
 332                                             static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 333                                             PAN_BORDER_3,
 334                                             PAN_CAL_MONTH_TEXT_COLOR, 255);
 335                 g_free(buf);
 336                 pi_text->x = pi_month->x + (pi_month->width - pi_text->width) / 2;
 337
 338                 pi_month->height = pi_text->y + pi_text->height - pi_month->y;
 339
 340                 x = PAN_BOX_BORDER + col * PAN_CAL_DAY_WIDTH;
 341                 y = pi_month->y + pi_month->height + PAN_BOX_BORDER;
 342
 343                 for (day = 1; day <= days; day++)
 344                         {
 345                         FileData *fd;
 346                         PanItem *pi_day;
 347                         gint dx;
 348                         gint dy;
 349                         gint n = 0;
 350                         gchar fake_path[20];
 351
 352                         dt = pan_date_to_time(year, month, day);
 353
 354                         /*
 355                          * Create a FileData entry that represents the given day.
 356                          * It does not correspond to any real file
 357                          */
 358
 359                         g_snprintf(fake_path, sizeof(fake_path), "//%04d-%02d-%02d", year, month, day);
 360                         fd = file_data_new_no_grouping(fake_path);
 361                         fd->date = dt;
 362                         pi_day = pan_item_box_new(pw, fd, x, y, PAN_CAL_DAY_WIDTH, PAN_CAL_DAY_HEIGHT,
 363                                                   PAN_CAL_DAY_BORDER,
 364                                                   PAN_CAL_DAY_COLOR, PAN_CAL_DAY_ALPHA,
 365                                                   PAN_CAL_DAY_BORDER_COLOR, PAN_CAL_DAY_ALPHA);
 366                         pan_item_set_key(pi_day, "day");
 367
 368                         dx = x + PAN_CAL_DOT_GAP * 2;
 369                         dy = y + PAN_CAL_DOT_GAP * 2;
 370
 371                         fd = static_cast<FileData *>((work) ? work->data : nullptr);
 372                         while (fd && pan_date_compare(fd->date, dt, PAN_DATE_LENGTH_DAY))
 373                                 {
 374                                 PanItem *pi;
 375
 376                                 pi = pan_item_box_new(pw, fd, dx, dy, PAN_CAL_DOT_SIZE, PAN_CAL_DOT_SIZE,
 377                                                       0,
 378                                                       PAN_CAL_DOT_COLOR, PAN_CAL_DOT_ALPHA,
 379                                                       0, 0, 0, 0);
 380                                 pan_item_set_key(pi, "dot");
 381
 382                                 dx += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 383                                 if (dx + PAN_CAL_DOT_SIZE > pi_day->x + pi_day->width - PAN_CAL_DOT_GAP * 2)
 384                                         {
 385                                         dx = x + PAN_CAL_DOT_GAP * 2;
 386                                         dy += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 387                                         }
 388                                 if (dy + PAN_CAL_DOT_SIZE > pi_day->y + pi_day->height - PAN_CAL_DOT_GAP * 2)
 389                                         {
 390                                         /* must keep all dots within respective day even if it gets ugly */
 391                                         dy = y + PAN_CAL_DOT_GAP * 2;
 392                                         }
 393
 394                                 n++;
 395
 396                                 work = work->next;
 397                                 fd = static_cast<FileData *>((work) ? work->data : nullptr);
 398                                 }
 399
 400                         if (n > 0)
 401                                 {
 402                                 PanItem *pi;
 403
 404                                 pi_day->color_r = MAX(pi_day->color_r - 61 - n * 3, 80);
 405                                 pi_day->color_g = pi_day->color_r;
 406
 407                                 buf = g_strdup_printf("( %d )", n);
 408                                 pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 409                                                        PAN_BORDER_3,
 410                                                        PAN_CAL_DAY_TEXT_COLOR, 255);
 411                                 g_free(buf);
 412
 413                                 pi->x = pi_day->x + (pi_day->width - pi->width) / 2;
 414                                 pi->y = pi_day->y + (pi_day->height - pi->height) / 2;
 415                                 }
 416
 417                         buf = g_strdup_printf("%d", day);
 418                         pi_day_number = pan_item_text_new(pw, x + 4, y + 4, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 419                                           PAN_BORDER_3,
 420                                           PAN_CAL_DAY_TEXT_COLOR, 255);
 421                         g_free(buf);
 422
 423                         day_of_week = date_get_first_day_of_week() + col;
 424                         if (day_of_week > 7) day_of_week = day_of_week - 7;
 425
 426                         buf = date_get_abbreviated_day_name(day_of_week);
 427                         pan_item_text_new(pw, x + 4 + pi_day_number->width + 4, y + 4, buf, PAN_TEXT_ATTR_NONE,
 428                                           PAN_BORDER_3,
 429                                           PAN_CAL_DAY_OF_WEEK_COLOR, 255);
 430                         g_free(buf);
 431
 432                         pan_item_size_coordinates(pi_day, PAN_BOX_BORDER, width, height);
 433
 434                         col++;
 435                         if (col > 6)
 436                                 {
 437                                 col = 0;
 438                                 row++;
 439                                 x = PAN_BOX_BORDER;
 440                                 y += PAN_CAL_DAY_HEIGHT;
 441                                 }
 442                         else
 443                                 {
 444                                 x += PAN_CAL_DAY_WIDTH;
 445                                 }
 446                         }
 447
 448                 if (col > 0) y += PAN_CAL_DAY_HEIGHT;
 449                 y += PAN_BOX_BORDER * 2;
 450
 451                 month ++;
 452                 if (month > 12)
 453                         {
 454                         year++;
 455                         month = 1;
 456                         }
 457                 }
 458
 459         *width += grid;
 460         *height = MAX(*height, grid + PAN_BOX_BORDER * 2 * 2);
 461
 462         g_list_free(list);
 463 }
 464 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */