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