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