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