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 #include <cstring>
  26 #include <ctime>
  27
  28 #include "debug.h"
  29 #include "filedata.h"
  30 #include "misc.h"
  31 #include "pan-item.h"
  32 #include "pan-types.h"
  33 #include "pan-util.h"
  34 #include "pan-view-filter.h"
  35 #include "pan-view.h"
  36 #include "pixbuf-util.h"
  37 #include "typedefs.h"
  38
  39 namespace
  40 {
  41
  42 constexpr guint8 PAN_CAL_DOT_ALPHA = 128;
  43
  44 } // namespace
  45
  46 #define PAN_CAL_POPUP_COLOR 220, 220, 220
  47 enum {
  48         PAN_CAL_POPUP_ALPHA = 255,
  49         PAN_CAL_POPUP_BORDER = 1
  50 };
  51 #define PAN_CAL_POPUP_BORDER_COLOR 0, 0, 0
  52 #define PAN_CAL_POPUP_TEXT_COLOR 0, 0, 0
  53
  54 enum {
  55         PAN_CAL_DAY_WIDTH = 100,
  56         PAN_CAL_DAY_HEIGHT = 80
  57 };
  58
  59 #define PAN_CAL_DAY_COLOR 255, 255, 255
  60 enum {
  61         PAN_CAL_DAY_ALPHA = 220,
  62         PAN_CAL_DAY_BORDER = 2
  63 };
  64 #define PAN_CAL_DAY_BORDER_COLOR 0, 0, 0
  65 #define PAN_CAL_DAY_TEXT_COLOR 0, 0, 0
  66
  67 #define PAN_CAL_MONTH_COLOR 255, 255, 255
  68 enum {
  69         PAN_CAL_MONTH_ALPHA = 200,
  70         PAN_CAL_MONTH_BORDER = 4
  71 };
  72 #define PAN_CAL_MONTH_BORDER_COLOR 0, 0, 0
  73 #define PAN_CAL_MONTH_TEXT_COLOR 0, 0, 0
  74
  75 enum {
  76         PAN_CAL_DOT_SIZE = 3,
  77         PAN_CAL_DOT_GAP = 2
  78 };
  79 #define PAN_CAL_DOT_COLOR 128, 128, 128
  80
  81 #define PAN_CAL_DAY_OF_WEEK_COLOR 128, 128, 128
  82
  83 /*
  84  *-----------------------------------------------------------------------------
  85  * calendar
  86  *-----------------------------------------------------------------------------
  87  */
  88
  89 void pan_calendar_update(PanWindow *pw, PanItem *pi_day)
  90 {
  91         PanItem *pbox;
  92         PanItem *pi;
  93         GList *list;
  94         GList *work;
  95         gint x1;
  96         gint y1;
  97         gint x2;
  98         gint y2;
  99         gint x3;
 100         gint y3;
 101         gint x;
 102         gint y;
 103         gint w;
 104         gint h;
 105         gint grid;
 106         gint column;
 107
 108         while ((pi = pan_item_find_by_key(pw, PAN_ITEM_NONE, "day_bubble"))) pan_item_remove(pw, pi);
 109
 110         if (!pi_day || pi_day->type != PAN_ITEM_BOX ||
 111             !pi_day->key || strcmp(pi_day->key, "day") != 0) return;
 112
 113         list = pan_layout_intersect(pw, pi_day->x, pi_day->y, pi_day->width, pi_day->height);
 114
 115         work = list;
 116         while (work)
 117                 {
 118                 PanItem *dot;
 119                 GList *node;
 120
 121                 dot = static_cast<PanItem *>(work->data);
 122                 node = work;
 123                 work = work->next;
 124
 125                 if (dot->type != PAN_ITEM_BOX || !dot->fd ||
 126                     !dot->key || strcmp(dot->key, "dot") != 0)
 127                         {
 128                         list = g_list_delete_link(list, node);
 129                         }
 130                 }
 131
 132         grid = static_cast<gint>(sqrt(g_list_length(list)) + 0.5);
 133
 134         x = pi_day->x + pi_day->width + 4;
 135         y = pi_day->y;
 136
 137         pbox = pan_item_box_new(pw, nullptr, x, y, PAN_BOX_BORDER, PAN_BOX_BORDER,
 138                                 PAN_CAL_POPUP_BORDER,
 139                                 PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA,
 140                                 PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 141         pan_item_set_key(pbox, "day_bubble");
 142
 143         if (pi_day->fd)
 144                 {
 145                 PanItem *plabel;
 146                 gchar *buf;
 147
 148                 buf = pan_date_value_string(pi_day->fd->date, PAN_DATE_LENGTH_WEEK);
 149                 plabel = pan_item_text_new(pw, x, y, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 150                                            PAN_BORDER_3,
 151                                            PAN_CAL_POPUP_TEXT_COLOR, 255);
 152                 pan_item_set_key(plabel, "day_bubble");
 153                 g_free(buf);
 154
 155                 pan_item_size_by_item(pbox, plabel, 0);
 156
 157                 y += plabel->height;
 158                 }
 159
 160         if (list)
 161                 {
 162                 column = 0;
 163
 164                 x += PAN_BOX_BORDER;
 165                 y += PAN_BOX_BORDER;
 166
 167                 work = list;
 168                 while (work)
 169                         {
 170                         PanItem *dot;
 171
 172                         dot = static_cast<PanItem *>(work->data);
 173                         work = work->next;
 174
 175                         if (dot->fd)
 176                                 {
 177                                 PanItem *pimg;
 178
 179                                 pimg = pan_item_thumb_new(pw, file_data_ref(dot->fd), x, y);
 180                                 pan_item_set_key(pimg, "day_bubble");
 181
 182                                 pan_item_size_by_item(pbox, pimg, PAN_BOX_BORDER);
 183
 184                                 column++;
 185                                 if (column < grid)
 186                                         {
 187                                         x += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 188                                         }
 189                                 else
 190                                         {
 191                                         column = 0;
 192                                         x = pbox->x + PAN_BOX_BORDER;
 193                                         y += PAN_THUMB_SIZE + PAN_THUMB_GAP;
 194                                         }
 195                                 }
 196                         }
 197                 }
 198
 199         x1 = pi_day->x + pi_day->width - 8;
 200         y1 = pi_day->y + 8;
 201         x2 = pbox->x + 1;
 202         y2 = pbox->y + MIN(42, pbox->height);
 203         x3 = pbox->x + 1;
 204         y3 = MAX(pbox->y, y2 - 30);
 205         util_clip_triangle(x1, y1, x2, y2, x3, y3,
 206                            &x, &y, &w, &h);
 207
 208         pi = pan_item_tri_new(pw, nullptr, x, y, w, h,
 209                               x1, y1, x2, y2, x3, y3,
 210                               PAN_CAL_POPUP_COLOR, PAN_CAL_POPUP_ALPHA);
 211         pan_item_tri_border(pi, PAN_BORDER_1 | PAN_BORDER_3, PAN_CAL_POPUP_BORDER_COLOR, PAN_CAL_POPUP_ALPHA);
 212         pan_item_set_key(pi, "day_bubble");
 213         pan_item_added(pw, pi);
 214
 215         pan_item_box_shadow(pbox, PAN_SHADOW_OFFSET * 2, PAN_SHADOW_FADE * 2);
 216         pan_item_added(pw, pbox);
 217
 218         pan_layout_resize(pw);
 219 }
 220
 221 void pan_calendar_compute(PanWindow *pw, FileData *dir_fd, gint *width, gint *height)
 222 {
 223         GList *list;
 224         GList *work;
 225         gint x;
 226         gint y;
 227         time_t tc;
 228         gint count;
 229         gint day_max;
 230         gint grid;
 231         gint year = 0;
 232         gint month = 0;
 233         gint end_year = 0;
 234         gint end_month = 0;
 235         gint day_of_week;
 236
 237         list = pan_list_tree(dir_fd, SORT_NONE, TRUE, TRUE, pw->ignore_symlinks);
 238         pan_filter_fd_list(&list, pw->filter_ui->filter_elements, pw->filter_ui->filter_classes);
 239
 240         if (pw->cache_list && pw->exif_date_enable)
 241                 {
 242                 pw->cache_list = pan_cache_sort(pw->cache_list, SORT_NAME, TRUE, TRUE);
 243                 list = filelist_sort(list, SORT_NAME, TRUE, TRUE);
 244                 pan_cache_sync_date(pw, list);
 245                 }
 246
 247         pw->cache_list = pan_cache_sort(pw->cache_list, SORT_TIME, TRUE, TRUE);
 248         list = filelist_sort(list, SORT_TIME, TRUE, TRUE);
 249
 250         day_max = 0;
 251         count = 0;
 252         tc = 0;
 253         work = list;
 254         while (work)
 255                 {
 256                 FileData *fd;
 257
 258                 fd = static_cast<FileData *>(work->data);
 259                 work = work->next;
 260
 261                 if (!pan_date_compare(fd->date, tc, PAN_DATE_LENGTH_DAY))
 262                         {
 263                         count = 0;
 264                         tc = fd->date;
 265                         }
 266                 else
 267                         {
 268                         count++;
 269                         if (day_max < count) day_max = count;
 270                         }
 271                 }
 272
 273         DEBUG_1("biggest day contains %d images", day_max);
 274
 275         grid = static_cast<gint>(sqrt(static_cast<gdouble>(day_max)) + 0.5) * (PAN_THUMB_SIZE + PAN_SHADOW_OFFSET * 2 + PAN_THUMB_GAP);
 276
 277         if (list)
 278                 {
 279                 auto fd = static_cast<FileData *>(list->data);
 280
 281                 year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 282                 month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 283                 }
 284
 285         work = g_list_last(list);
 286         if (work)
 287                 {
 288                 auto fd = static_cast<FileData *>(work->data);
 289                 end_year = pan_date_value(fd->date, PAN_DATE_LENGTH_YEAR);
 290                 end_month = pan_date_value(fd->date, PAN_DATE_LENGTH_MONTH);
 291                 }
 292
 293         *width = PAN_BOX_BORDER * 2;
 294         *height = PAN_BOX_BORDER * 2;
 295
 296         x = PAN_BOX_BORDER;
 297         y = PAN_BOX_BORDER;
 298
 299         work = list;
 300         while (work && (year < end_year || (year == end_year && month <= end_month)))
 301                 {
 302                 PanItem *pi_month;
 303                 PanItem *pi_text;
 304                 PanItem *pi_day_number;
 305                 gint day;
 306                 gint days;
 307                 gint col;
 308                 time_t dt;
 309                 gchar *buf;
 310
 311                 /* figure last second of this month */
 312                 dt = pan_date_to_time((month == 12) ? year + 1 : year, (month == 12) ? 1 : month + 1, 1);
 313                 dt -= 60 * 60 * 24;
 314
 315                 /* anything to show this month? */
 316                 if (!pan_date_compare((static_cast<FileData *>(work->data))->date, dt, PAN_DATE_LENGTH_MONTH))
 317                         {
 318                         month ++;
 319                         if (month > 12)
 320                                 {
 321                                 year++;
 322                                 month = 1;
 323                                 }
 324                         continue;
 325                         }
 326
 327                 days = pan_date_value(dt, PAN_DATE_LENGTH_DAY);
 328                 dt = pan_date_to_time(year, month, 1);
 329                 col = pan_date_value(dt, PAN_DATE_LENGTH_WEEK);
 330                 col = col - (date_get_first_day_of_week() - 1);
 331                 if (col < 0) col = col + 7;
 332
 333                 x = PAN_BOX_BORDER;
 334
 335                 pi_month = pan_item_box_new(pw, nullptr, x, y, PAN_CAL_DAY_WIDTH * 7, PAN_CAL_DAY_HEIGHT / 4,
 336                                             PAN_CAL_MONTH_BORDER,
 337                                             PAN_CAL_MONTH_COLOR, PAN_CAL_MONTH_ALPHA,
 338                                             PAN_CAL_MONTH_BORDER_COLOR, PAN_CAL_MONTH_ALPHA);
 339                 buf = pan_date_value_string(dt, PAN_DATE_LENGTH_MONTH);
 340                 pi_text = pan_item_text_new(pw, x, y, buf,
 341                                             static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 342                                             PAN_BORDER_3,
 343                                             PAN_CAL_MONTH_TEXT_COLOR, 255);
 344                 g_free(buf);
 345                 pi_text->x = pi_month->x + (pi_month->width - pi_text->width) / 2;
 346
 347                 pi_month->height = pi_text->y + pi_text->height - pi_month->y;
 348
 349                 x = PAN_BOX_BORDER + col * PAN_CAL_DAY_WIDTH;
 350                 y = pi_month->y + pi_month->height + PAN_BOX_BORDER;
 351
 352                 for (day = 1; day <= days; day++)
 353                         {
 354                         FileData *fd;
 355                         PanItem *pi_day;
 356                         gint dx;
 357                         gint dy;
 358                         gint n = 0;
 359                         gchar fake_path[20];
 360
 361                         dt = pan_date_to_time(year, month, day);
 362
 363                         /*
 364                          * Create a FileData entry that represents the given day.
 365                          * It does not correspond to any real file
 366                          */
 367
 368                         g_snprintf(fake_path, sizeof(fake_path), "//%04d-%02d-%02d", year, month, day);
 369                         fd = file_data_new_no_grouping(fake_path);
 370                         fd->date = dt;
 371                         pi_day = pan_item_box_new(pw, fd, x, y, PAN_CAL_DAY_WIDTH, PAN_CAL_DAY_HEIGHT,
 372                                                   PAN_CAL_DAY_BORDER,
 373                                                   PAN_CAL_DAY_COLOR, PAN_CAL_DAY_ALPHA,
 374                                                   PAN_CAL_DAY_BORDER_COLOR, PAN_CAL_DAY_ALPHA);
 375                         pan_item_set_key(pi_day, "day");
 376
 377                         dx = x + PAN_CAL_DOT_GAP * 2;
 378                         dy = y + PAN_CAL_DOT_GAP * 2;
 379
 380                         fd = static_cast<FileData *>((work) ? work->data : nullptr);
 381                         while (fd && pan_date_compare(fd->date, dt, PAN_DATE_LENGTH_DAY))
 382                                 {
 383                                 PanItem *pi;
 384
 385                                 pi = pan_item_box_new(pw, fd, dx, dy, PAN_CAL_DOT_SIZE, PAN_CAL_DOT_SIZE,
 386                                                       0,
 387                                                       PAN_CAL_DOT_COLOR, PAN_CAL_DOT_ALPHA,
 388                                                       0, 0, 0, 0);
 389                                 pan_item_set_key(pi, "dot");
 390
 391                                 dx += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 392                                 if (dx + PAN_CAL_DOT_SIZE > pi_day->x + pi_day->width - PAN_CAL_DOT_GAP * 2)
 393                                         {
 394                                         dx = x + PAN_CAL_DOT_GAP * 2;
 395                                         dy += PAN_CAL_DOT_SIZE + PAN_CAL_DOT_GAP;
 396                                         }
 397                                 if (dy + PAN_CAL_DOT_SIZE > pi_day->y + pi_day->height - PAN_CAL_DOT_GAP * 2)
 398                                         {
 399                                         /* must keep all dots within respective day even if it gets ugly */
 400                                         dy = y + PAN_CAL_DOT_GAP * 2;
 401                                         }
 402
 403                                 n++;
 404
 405                                 work = work->next;
 406                                 fd = static_cast<FileData *>((work) ? work->data : nullptr);
 407                                 }
 408
 409                         if (n > 0)
 410                                 {
 411                                 PanItem *pi;
 412
 413                                 pi_day->color_r = MAX(pi_day->color_r - 61 - n * 3, 80);
 414                                 pi_day->color_g = pi_day->color_r;
 415
 416                                 buf = g_strdup_printf("( %d )", n);
 417                                 pi = pan_item_text_new(pw, x, y, buf, PAN_TEXT_ATTR_NONE,
 418                                                        PAN_BORDER_3,
 419                                                        PAN_CAL_DAY_TEXT_COLOR, 255);
 420                                 g_free(buf);
 421
 422                                 pi->x = pi_day->x + (pi_day->width - pi->width) / 2;
 423                                 pi->y = pi_day->y + (pi_day->height - pi->height) / 2;
 424                                 }
 425
 426                         buf = g_strdup_printf("%d", day);
 427                         pi_day_number = pan_item_text_new(pw, x + 4, y + 4, buf, static_cast<PanTextAttrType>(PAN_TEXT_ATTR_BOLD | PAN_TEXT_ATTR_HEADING),
 428                                           PAN_BORDER_3,
 429                                           PAN_CAL_DAY_TEXT_COLOR, 255);
 430                         g_free(buf);
 431
 432                         day_of_week = date_get_first_day_of_week() + col;
 433                         if (day_of_week > 7) day_of_week = day_of_week - 7;
 434
 435                         buf = date_get_abbreviated_day_name(day_of_week);
 436                         pan_item_text_new(pw, x + 4 + pi_day_number->width + 4, y + 4, buf, PAN_TEXT_ATTR_NONE,
 437                                           PAN_BORDER_3,
 438                                           PAN_CAL_DAY_OF_WEEK_COLOR, 255);
 439                         g_free(buf);
 440
 441                         pan_item_size_coordinates(pi_day, PAN_BOX_BORDER, width, height);
 442
 443                         col++;
 444                         if (col > 6)
 445                                 {
 446                                 col = 0;
 447                                 x = PAN_BOX_BORDER;
 448                                 y += PAN_CAL_DAY_HEIGHT;
 449                                 }
 450                         else
 451                                 {
 452                                 x += PAN_CAL_DAY_WIDTH;
 453                                 }
 454                         }
 455
 456                 if (col > 0) y += PAN_CAL_DAY_HEIGHT;
 457                 y += PAN_BOX_BORDER * 2;
 458
 459                 month ++;
 460                 if (month > 12)
 461                         {
 462                         year++;
 463                         month = 1;
 464                         }
 465                 }
 466
 467         *width += grid;
 468         *height = MAX(*height, grid + PAN_BOX_BORDER * 2 * 2);
 469
 470         g_list_free(list);
 471 }
 472 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */