guicast/bctheme.C

   1 #include "bctheme.h"
   2 #include "bcwindowbase.h"
   3 #include "clip.h"
   4 #include "language.h"
   5 #include "vframe.h"
   6
   7 #include <errno.h>
   8 #include <stdio.h>
   9 #include <string.h>
  10
  11 BC_Theme::BC_Theme()
  12 {
  13         data_ptr = 0;
  14         contents_ptr = 0;
  15         last_image = 0;
  16         last_pointer = 0;
  17 }
  18
  19 BC_Theme::~BC_Theme()
  20 {
  21         image_sets.remove_all_objects();
  22 }
  23
  24 void BC_Theme::dump()
  25 {
  26         printf("BC_Theme::dump 1 image_sets=%d contents=%d\n",
  27                 image_sets.total,
  28                 contents.total);
  29         for(int i = 0; i < contents.total; i++)
  30                 printf("    %s %p\n", contents.values[i], pointers.values[i]);
  31 }
  32
  33 BC_Resources* BC_Theme::get_resources()
  34 {
  35         return BC_WindowBase::get_resources();
  36 }
  37
  38
  39 // These create single images for storage in the image_sets table.
  40 VFrame* BC_Theme::new_image(char *title, char *path)
  41 {
  42         VFrame *existing_image = title[0] ? get_image(title, 0) : 0;
  43         if(existing_image) return existing_image;
  44
  45         BC_ThemeSet *result = new BC_ThemeSet(1, 0, title);
  46         result->data[0] = new VFrame(get_image_data(path));
  47         image_sets.append(result);
  48         return result->data[0];
  49 }
  50
  51 VFrame* BC_Theme::new_image(char *path)
  52 {
  53         return new_image("", path);
  54 }
  55
  56
  57
  58 // These create image sets which are stored in the image_sets table.
  59 VFrame** BC_Theme::new_image_set(char *title, int total, va_list *args)
  60 {
  61         VFrame **existing_image_set = title[0] ? get_image_set(title, 0) : 0;
  62         if(existing_image_set) return existing_image_set;
  63
  64         BC_ThemeSet *result = new BC_ThemeSet(total, 1, title);
  65         image_sets.append(result);
  66         for(int i = 0; i < total; i++)
  67         {
  68                 char *path = va_arg(*args, char*);
  69                 result->data[i] = new_image(path);
  70         }
  71         return result->data;
  72 }
  73
  74 VFrame** BC_Theme::new_image_set_images(char *title, int total, ...)
  75 {
  76         va_list list;
  77         va_start(list, total);
  78         BC_ThemeSet *existing_image_set = title[0] ? get_image_set_object(title) : 0;
  79         if(existing_image_set)
  80         {
  81                 image_sets.remove_object(existing_image_set);
  82         }
  83
  84         BC_ThemeSet *result = new BC_ThemeSet(total, 0, title);
  85         image_sets.append(result);
  86         for(int i = 0; i < total; i++)
  87         {
  88                 result->data[i] = va_arg(list, VFrame*);
  89         }
  90         return result->data;
  91 }
  92
  93 VFrame** BC_Theme::new_image_set(char *title, int total, ...)
  94 {
  95         va_list list;
  96         va_start(list, total);
  97         VFrame **result = new_image_set(title, total, &list);
  98         va_end(list);
  99
 100         return result;
 101 }
 102
 103 VFrame** BC_Theme::new_image_set(int total, ...)
 104 {
 105         va_list list;
 106         va_start(list, total);
 107         VFrame **result = new_image_set("", total, &list);
 108         va_end(list);
 109
 110         return result;
 111 }
 112
 113 VFrame* BC_Theme::get_image(char *title, int use_default)
 114 {
 115         for(int i = 0; i < image_sets.total; i++)
 116         {
 117                 if(!strcmp(image_sets.values[i]->title, title))
 118                 {
 119                         return image_sets.values[i]->data[0];
 120                 }
 121         }
 122
 123
 124
 125 // Return the first image it can find.  This should always work.
 126         if(use_default)
 127         {
 128                 printf("BC_Theme::get_image: image \"%s\" not found.\n",
 129                         title);
 130                 if(image_sets.total)
 131                 {
 132                         return image_sets.values[0]->data[0];
 133                 }
 134         }
 135
 136 // Give up and go to a movie.
 137         return 0;
 138 }
 139
 140 VFrame** BC_Theme::get_image_set(char *title, int use_default)
 141 {
 142         for(int i = 0; i < image_sets.total; i++)
 143         {
 144                 if(!strcmp(image_sets.values[i]->title, title))
 145                 {
 146                         return image_sets.values[i]->data;
 147                 }
 148         }
 149
 150 // Get the image set with the largest number of images.
 151         if(use_default)
 152         {
 153                 printf("BC_Theme::get_image_set: image set \"%s\" not found.\n",
 154                         title);
 155                 int max_total = 0;
 156                 int max_number = -1;
 157                 for(int i = 0; i < image_sets.total; i++)
 158                 {
 159                         if(image_sets.values[i]->total > max_total)
 160                         {
 161                                 max_total = image_sets.values[i]->total;
 162                                 max_number = i;
 163                         }
 164                 }
 165
 166                 if(max_number >= 0)
 167                         return image_sets.values[max_number]->data;
 168         }
 169
 170 // Give up and go to a movie
 171         return 0;
 172 }
 173
 174 BC_ThemeSet* BC_Theme::get_image_set_object(char *title)
 175 {
 176         for(int i = 0; i < image_sets.total; i++)
 177         {
 178                 if(!strcmp(image_sets.values[i]->title, title))
 179                 {
 180                         return image_sets.values[i];
 181                 }
 182         }
 183         return 0;
 184 }
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196 VFrame** BC_Theme::new_button(char *overlay_path,
 197         char *up_path,
 198         char *hi_path,
 199         char *dn_path,
 200         char *title)
 201 {
 202         VFrame default_data(get_image_data(overlay_path));
 203         BC_ThemeSet *result = new BC_ThemeSet(3, 1, title ? title : (char*)"");
 204         if(title) image_sets.append(result);
 205
 206         result->data[0] = new_image(up_path);
 207         result->data[1] = new_image(hi_path);
 208         result->data[2] = new_image(dn_path);
 209         for(int i = 0; i < 3; i++)
 210         {
 211                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 212         }
 213         return result->data;
 214 }
 215
 216
 217 VFrame** BC_Theme::new_button4(char *overlay_path,
 218         char *up_path,
 219         char *hi_path,
 220         char *dn_path,
 221         char *disabled_path,
 222         char *title)
 223 {
 224         VFrame default_data(get_image_data(overlay_path));
 225         BC_ThemeSet *result = new BC_ThemeSet(4, 1, title ? title : (char*)"");
 226         if(title) image_sets.append(result);
 227
 228         result->data[0] = new_image(up_path);
 229         result->data[1] = new_image(hi_path);
 230         result->data[2] = new_image(dn_path);
 231         result->data[3] = new_image(disabled_path);
 232         for(int i = 0; i < 4; i++)
 233         {
 234                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 235         }
 236         return result->data;
 237 }
 238
 239
 240 VFrame** BC_Theme::new_button(char *overlay_path,
 241         VFrame *up,
 242         VFrame *hi,
 243         VFrame *dn,
 244         char *title)
 245 {
 246         VFrame default_data(get_image_data(overlay_path));
 247         BC_ThemeSet *result = new BC_ThemeSet(3, 0, title ? title : (char*)"");
 248         if(title) image_sets.append(result);
 249
 250         result->data[0] = new VFrame(*up);
 251         result->data[1] = new VFrame(*hi);
 252         result->data[2] = new VFrame(*dn);
 253         for(int i = 0; i < 3; i++)
 254                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 255         return result->data;
 256 }
 257
 258
 259 VFrame** BC_Theme::new_toggle(char *overlay_path,
 260         char *up_path,
 261         char *hi_path,
 262         char *checked_path,
 263         char *dn_path,
 264         char *checkedhi_path,
 265         char *title)
 266 {
 267         VFrame default_data(get_image_data(overlay_path));
 268         BC_ThemeSet *result = new BC_ThemeSet(5, 1, title ? title : (char*)"");
 269         if(title) image_sets.append(result);
 270
 271         result->data[0] = new_image(up_path);
 272         result->data[1] = new_image(hi_path);
 273         result->data[2] = new_image(checked_path);
 274         result->data[3] = new_image(dn_path);
 275         result->data[4] = new_image(checkedhi_path);
 276         for(int i = 0; i < 5; i++)
 277                 overlay(result->data[i], &default_data, -1, -1, (i == 3));
 278         return result->data;
 279 }
 280
 281 VFrame** BC_Theme::new_toggle(char *overlay_path,
 282         VFrame *up,
 283         VFrame *hi,
 284         VFrame *checked,
 285         VFrame *dn,
 286         VFrame *checkedhi,
 287         char *title)
 288 {
 289         VFrame default_data(get_image_data(overlay_path));
 290         BC_ThemeSet *result = new BC_ThemeSet(5, 0, title ? title : (char*)"");
 291         if(title) image_sets.append(result);
 292
 293         result->data[0] = new VFrame(*up);
 294         result->data[1] = new VFrame(*hi);
 295         result->data[2] = new VFrame(*checked);
 296         result->data[3] = new VFrame(*dn);
 297         result->data[4] = new VFrame(*checkedhi);
 298         for(int i = 0; i < 5; i++)
 299                 overlay(result->data[i], &default_data, -1, -1, (i == 3));
 300         return result->data;
 301 }
 302
 303 void BC_Theme::overlay(VFrame *dst, VFrame *src, int in_x1, int in_x2, int shift)
 304 {
 305         int w;
 306         int h;
 307         unsigned char **in_rows;
 308         unsigned char **out_rows;
 309
 310         if(in_x1 < 0)
 311         {
 312                 w = MIN(src->get_w(), dst->get_w());
 313                 h = MIN(dst->get_h(), src->get_h());
 314                 in_x1 = 0;
 315                 in_x2 = w;
 316         }
 317         else
 318         {
 319                 w = in_x2 - in_x1;
 320                 h = MIN(dst->get_h(), src->get_h());
 321         }
 322         in_rows = src->get_rows();
 323         out_rows = dst->get_rows();
 324
 325         switch(src->get_color_model())
 326         {
 327                 case BC_RGBA8888:
 328                         switch(dst->get_color_model())
 329                         {
 330                                 case BC_RGBA8888:
 331                                         for(int i = shift; i < h; i++)
 332                                         {
 333                                                 unsigned char *in_row = 0;
 334                                                 unsigned char *out_row;
 335
 336                                                 if(!shift)
 337                                                 {
 338                                                         in_row = in_rows[i] + in_x1 * 4;
 339                                                         out_row = out_rows[i];
 340                                                 }
 341                                                 else
 342                                                 {
 343                                                         in_row = in_rows[i - 1] + in_x1 * 4;
 344                                                         out_row = out_rows[i] + 4;
 345                                                 }
 346
 347                                                 for(int j = shift; j < w; j++)
 348                                                 {
 349                                                         int opacity = in_row[3];
 350                                                         int transparency = 0xff - opacity;
 351
 352                                                         out_row[0] = (in_row[0] * opacity + out_row[0] * transparency) / 0xff;
 353                                                         out_row[1] = (in_row[1] * opacity + out_row[1] * transparency) / 0xff;
 354                                                         out_row[2] = (in_row[2] * opacity + out_row[2] * transparency) / 0xff;
 355                                                         out_row[3] = MAX(in_row[3], out_row[3]);
 356                                                         out_row += 4;
 357                                                         in_row += 4;
 358                                                 }
 359                                         }
 360                                         break;
 361
 362                                 case BC_RGB888:
 363                                         for(int i = shift; i < h; i++)
 364                                         {
 365                                                 unsigned char *in_row;
 366                                                 unsigned char *out_row = out_rows[i];
 367
 368                                                 if(!shift)
 369                                                 {
 370                                                         in_row = in_rows[i] + in_x1 * 3;
 371                                                         out_row = out_rows[i];
 372                                                 }
 373                                                 else
 374                                                 {
 375                                                         in_row = in_rows[i - 1] + in_x1 * 3;
 376                                                         out_row = out_rows[i] + 3;
 377                                                 }
 378
 379                                                 for(int j = shift; j < w; j++)
 380                                                 {
 381                                                         int opacity = in_row[3];
 382                                                         int transparency = 0xff - opacity;
 383                                                         out_row[0] = (in_row[0] * opacity + out_row[0] * transparency) / 0xff;
 384                                                         out_row[1] = (in_row[1] * opacity + out_row[1] * transparency) / 0xff;
 385                                                         out_row[2] = (in_row[2] * opacity + out_row[2] * transparency) / 0xff;
 386                                                         out_row += 3;
 387                                                         in_row += 4;
 388                                                 }
 389                                         }
 390                                         break;
 391                         }
 392                         break;
 393         }
 394 }
 395
 396 void BC_Theme::set_data(unsigned char *ptr)
 397 {
 398         contents_ptr = (char*)(ptr + sizeof(int));
 399         int contents_size = *(int*)ptr - sizeof(int);
 400         data_ptr = contents_ptr + contents_size;
 401
 402         for(int i = 0; i < contents_size; )
 403         {
 404                 used.append(0);
 405                 contents.append(contents_ptr + i);
 406                 while(contents_ptr[i] && i < contents_size)
 407                         i++;
 408                 if(i < contents_size)
 409                 {
 410                         i++;
 411                         pointers.append((unsigned char*)data_ptr +
 412                                 *(unsigned int*)(contents_ptr + i));
 413                         i += 4;
 414                 }
 415                 else
 416                 {
 417                         pointers.append((unsigned char*)data_ptr);
 418                         break;
 419                 }
 420         }
 421 }
 422
 423 unsigned char* BC_Theme::get_image_data(char *title)
 424 {
 425         if(!data_ptr)
 426         {
 427                 fprintf(stderr, "BC_Theme::get_image_data: no data set\n");
 428                 return 0;
 429         }
 430
 431 // Image is the same as the last one
 432         if(last_image && !strcasecmp(last_image, title))
 433         {
 434                 return last_pointer;
 435         }
 436         else
 437 // Search for image anew.
 438         for(int i = 0; i < contents.total; i++)
 439         {
 440                 if(!strcasecmp(contents.values[i], title))
 441                 {
 442                         last_pointer = pointers.values[i];
 443                         last_image = contents.values[i];
 444                         used.values[i] = 1;
 445                         return pointers.values[i];
 446                 }
 447         }
 448
 449         fprintf(stderr, _("Theme::get_image: %s not found.\n"), title);
 450         return 0;
 451 }
 452
 453 void BC_Theme::check_used()
 454 {
 455 // Can't use because some images are gotten the old fashioned way.
 456 return;
 457         int got_it = 0;
 458         for(int i = 0; i < used.total; i++)
 459         {
 460                 if(!used.values[i])
 461                 {
 462                         if(!got_it)
 463                                 printf(_("BC_Theme::check_used: Images aren't used.\n"));
 464                         printf("%s ", contents.values[i]);
 465                         got_it = 1;
 466                 }
 467         }
 468         if(got_it) printf("\n");
 469 }
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482 BC_ThemeSet::BC_ThemeSet(int total, int is_reference, char *title)
 483 {
 484         this->total = total;
 485         this->title = new char[strlen(title) + 1];
 486         strcpy(this->title, title);
 487         this->is_reference = is_reference;
 488         data = new VFrame*[total];
 489 }
 490
 491 BC_ThemeSet::~BC_ThemeSet()
 492 {
 493         if(data)
 494         {
 495                 if(!is_reference)
 496                 {
 497                         for(int i = 0; i < total; i++)
 498                                 delete data[i];
 499                 }
 500
 501                 delete [] data;
 502         }
 503
 504         delete [] title;
 505 }
 506
 507
 508
 509
 510
 511 /*
 512 //      Local Variables:
 513 //      mode: C++
 514 //      c-file-style: "linux"
 515 //      End:
 516 */