cinelerra-5.1/guicast/bctheme.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcresources.h"
  23 #include "bctheme.h"
  24 #include "bcwindowbase.h"
  25 #include "clip.h"
  26 #include "language.h"
  27 #include "vframe.h"
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32
  33 BC_Theme::BC_Theme()
  34 {
  35         last_image_data = 0;
  36         last_image_set = 0;
  37         image_sets_start = -1;
  38 }
  39
  40 BC_Theme::~BC_Theme()
  41 {
  42         image_sets.remove_all_objects();
  43         images.remove_all_objects();
  44 }
  45
  46 void BC_Theme::dump()
  47 {
  48         printf("BC_Theme::dump 1 images=%d\n", images.size());
  49         for( int i=0; i<images.size(); ++i ) {
  50                 BC_ImageData *image_data = images[i];
  51                 printf("%4d. %s %p\n", i, image_data->name, image_data->data);
  52         }
  53         printf("BC_Theme::dump 2 image_sets=%d\n", image_sets.size());
  54         for( int i=0; i<image_sets.size(); ++i ) {
  55                 BC_ThemeSet *image_set = image_sets[i];
  56                 printf("%4d. %s %p\n", i, image_set->title, image_set->data[0]);
  57         }
  58 }
  59
  60 BC_Resources* BC_Theme::get_resources()
  61 {
  62         return BC_WindowBase::get_resources();
  63 }
  64
  65 // These create single images for storage in the image_sets table.
  66 VFrame* BC_Theme::new_image(const char *title, const char *path)
  67 {
  68         VFrame *existing_image = title[0] ? get_image(title, 0) : 0;
  69         if( existing_image ) return existing_image;
  70
  71         BC_ThemeSet *result = new BC_ThemeSet(1, 0, title);
  72         result->data[0] = new VFramePng(get_image_data(path));
  73         add_image_set(result);
  74         return result->data[0];
  75 }
  76
  77 VFrame* BC_Theme::new_image(const char *path)
  78 {
  79         return new_image("", path);
  80 }
  81
  82 // These create image sets which are stored in the image_sets table.
  83 VFrame** BC_Theme::new_image_set(const char *title, int total, va_list *args)
  84 {
  85         if( !total ) {
  86                 printf("BC_Theme::new_image_set %d %s zero number of images\n",
  87                         __LINE__, title);
  88         }
  89
  90         VFrame **existing_image_set = title[0] ? get_image_set(title, 0) : 0;
  91         if( existing_image_set ) return existing_image_set;
  92
  93         BC_ThemeSet *result = new BC_ThemeSet(total, 1, title);
  94         add_image_set(result);
  95         for( int i=0; i<total; ++i ) {
  96                 char *path = va_arg(*args, char*);
  97                 result->data[i] = new_image(path);
  98         }
  99         return result->data;
 100 }
 101
 102 VFrame** BC_Theme::new_image_set_images(const char *title, int total, ...)
 103 {
 104         va_list list;
 105         va_start(list, total);
 106         BC_ThemeSet *existing_image_set = title[0] ? get_image_set_object(title) : 0;
 107         if( existing_image_set ) {
 108                 image_sets.remove_object(existing_image_set);
 109                 last_image_set = 0;
 110                 last_image_data = 0;
 111         }
 112
 113         BC_ThemeSet *result = new BC_ThemeSet(total, 0, title);
 114         add_image_set(result);
 115         for( int i=0; i<total; ++i ) {
 116                 result->data[i] = va_arg(list, VFrame*);
 117         }
 118         va_end(list);
 119         return result->data;
 120 }
 121
 122 VFrame** BC_Theme::new_image_set(const char *title, int total, ...)
 123 {
 124         va_list list;
 125         va_start(list, total);
 126         VFrame **result = new_image_set(title, total, &list);
 127         va_end(list);
 128
 129         return result;
 130 }
 131
 132 VFrame** BC_Theme::new_image_set(int total, ...)
 133 {
 134         va_list list;
 135         va_start(list, total);
 136         VFrame **result = new_image_set("", total, &list);
 137         va_end(list);
 138
 139         return result;
 140 }
 141
 142 void BC_Theme::add_image_set(BC_ThemeSet *image_set)
 143 {
 144         image_sets.append(image_set);
 145         if( image_sets_start >= 0 ) {
 146                 printf("BC_Theme::add_image_set image_sets unsorted, lookups degraded\n");
 147                 image_sets_start = -1;
 148         }
 149 }
 150
 151 int BC_Theme::image_set_cmpr(const void *ap, const void *bp)
 152 {
 153         BC_ThemeSet*a = *(BC_ThemeSet**)ap, *b = *(BC_ThemeSet**)bp;
 154         return strcmp(a->title, b->title);
 155 }
 156
 157 void BC_Theme::sort_image_sets()
 158 {
 159         if( image_sets_start >= 0 ) return;
 160         qsort(&image_sets[0], image_sets.size(), sizeof(image_sets[0]), image_set_cmpr);
 161 // skip over un-titled image sets
 162         int i = 0, n = image_sets.size();
 163         while( i<n && !image_sets[i]->title[0] ) ++i;
 164         image_sets_start = i;
 165 }
 166
 167 BC_ThemeSet* BC_Theme::get_image_set_object(const char *title)
 168 {
 169         if( last_image_set && !strcmp(title,last_image_set->title) )
 170                 return last_image_set;
 171
 172         if( image_sets_start >= 0 ) {
 173 // binary search for image set
 174                 int r = image_sets.size(), l = image_sets_start-1;
 175                 int m = 0, v = -1;
 176                 while( r-l > 1 ) {
 177                         m = (l + r) / 2;
 178                         BC_ThemeSet *image_set = image_sets[m];
 179                         if( !(v=strcmp(title, image_set->title)) )
 180                                 return last_image_set = image_set;
 181                         if( v > 0 ) l = m; else r = m;
 182                 }
 183         }
 184         else {
 185 // compare title[0],title[1] for faster prefix test
 186                 const unsigned char *tp = (const unsigned char*)title;
 187                 unsigned short tval = tp[0];
 188                 if( tval ) tval |= (tp[1] << 8);
 189
 190                 for( int i=0; i<image_sets.size(); ++i ) {
 191                         tp = (const unsigned char *)image_sets[i]->title;
 192                         unsigned short val = tp[0];
 193                         if( val ) val |= (tp[1] << 8);
 194                         if( val != tval ) continue;
 195                         if( !strcmp((const char *)tp, title) )
 196                                 return last_image_set = image_sets[i];
 197                 }
 198         }
 199
 200         return 0;
 201 }
 202
 203 VFrame* BC_Theme::get_image(const char *title, int use_default)
 204 {
 205         BC_ThemeSet* tsp = get_image_set_object(title);
 206         if( tsp ) return tsp->data[0];
 207
 208
 209 // Return the first image it can find.  This should always work.
 210         if( use_default ) {
 211                 printf("BC_Theme::get_image: image \"%s\" not found.\n",
 212                         title);
 213                 if( image_sets.size() )
 214                         return image_sets[0]->data[0];
 215         }
 216
 217 // Give up and go to a movie.
 218         return 0;
 219 }
 220
 221 VFrame** BC_Theme::get_image_set(const char *title, int use_default)
 222 {
 223         BC_ThemeSet* tsp = get_image_set_object(title);
 224         if( tsp ) return tsp->data;
 225
 226 // Get the image set with the largest number of images.
 227         if( use_default ) {
 228                 printf("BC_Theme::get_image_set: image set \"%s\" not found.\n",
 229                         title);
 230                 int max_total = 0;
 231                 int max_number = -1;
 232                 for( int i=0; i<image_sets.size(); ++i ) {
 233                         if( image_sets[i]->total > max_total ) {
 234                                 max_total = image_sets[i]->total;
 235                                 max_number = i;
 236                         }
 237                 }
 238
 239                 if( max_number >= 0 )
 240                         return image_sets[max_number]->data;
 241         }
 242
 243 // Give up and go to a movie
 244         return 0;
 245 }
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257 VFrame** BC_Theme::new_button(const char *overlay_path,
 258         const char *up_path,
 259         const char *hi_path,
 260         const char *dn_path,
 261         const char *title)
 262 {
 263         VFramePng default_data(get_image_data(overlay_path));
 264         BC_ThemeSet *result = new BC_ThemeSet(3, 1, title ? title : "");
 265         if( title ) add_image_set(result);
 266
 267         result->data[0] = new_image(up_path);
 268         result->data[1] = new_image(hi_path);
 269         result->data[2] = new_image(dn_path);
 270         for( int i=0; i<3; ++i ) {
 271                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 272         }
 273         return result->data;
 274 }
 275
 276
 277 VFrame** BC_Theme::new_button4(const char *overlay_path,
 278         const char *up_path,
 279         const char *hi_path,
 280         const char *dn_path,
 281         const char *disabled_path,
 282         const char *title)
 283 {
 284         VFramePng default_data(get_image_data(overlay_path));
 285         BC_ThemeSet *result = new BC_ThemeSet(4, 1, title ? title : "");
 286         if( title ) add_image_set(result);
 287
 288         result->data[0] = new_image(up_path);
 289         result->data[1] = new_image(hi_path);
 290         result->data[2] = new_image(dn_path);
 291         result->data[3] = new_image(disabled_path);
 292         for( int i=0; i<4; ++i ) {
 293                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 294         }
 295         return result->data;
 296 }
 297
 298
 299 VFrame** BC_Theme::new_button(const char *overlay_path,
 300         VFrame *up,
 301         VFrame *hi,
 302         VFrame *dn,
 303         const char *title)
 304 {
 305         VFramePng default_data(get_image_data(overlay_path));
 306         BC_ThemeSet *result = new BC_ThemeSet(3, 0, title ? title : "");
 307         if( title ) add_image_set(result);
 308
 309         result->data[0] = new VFrame(*up);
 310         result->data[1] = new VFrame(*hi);
 311         result->data[2] = new VFrame(*dn);
 312         for( int i=0; i<3; ++i )
 313                 overlay(result->data[i], &default_data, -1, -1, (i == 2));
 314         return result->data;
 315 }
 316
 317
 318 VFrame** BC_Theme::new_toggle(const char *overlay_path,
 319         const char *up_path,
 320         const char *hi_path,
 321         const char *checked_path,
 322         const char *dn_path,
 323         const char *checkedhi_path,
 324         const char *title)
 325 {
 326         VFramePng default_data(get_image_data(overlay_path));
 327         BC_ThemeSet *result = new BC_ThemeSet(5, 1, title ? title : "");
 328         if( title ) add_image_set(result);
 329
 330         result->data[0] = new_image(up_path);
 331         result->data[1] = new_image(hi_path);
 332         result->data[2] = new_image(checked_path);
 333         result->data[3] = new_image(dn_path);
 334         result->data[4] = new_image(checkedhi_path);
 335         for( int i=0; i<5; ++i )
 336                 overlay(result->data[i], &default_data, -1, -1, (i == 3));
 337         return result->data;
 338 }
 339
 340 VFrame** BC_Theme::new_toggle(const char *overlay_path,
 341         VFrame *up,
 342         VFrame *hi,
 343         VFrame *checked,
 344         VFrame *dn,
 345         VFrame *checkedhi,
 346         const char *title)
 347 {
 348         VFramePng default_data(get_image_data(overlay_path));
 349         BC_ThemeSet *result = new BC_ThemeSet(5, 0, title ? title : "");
 350         if( title ) add_image_set(result);
 351
 352         result->data[0] = new VFrame(*up);
 353         result->data[1] = new VFrame(*hi);
 354         result->data[2] = new VFrame(*checked);
 355         result->data[3] = new VFrame(*dn);
 356         result->data[4] = new VFrame(*checkedhi);
 357         for( int i=0; i<5; ++i )
 358                 overlay(result->data[i], &default_data, -1, -1, (i == 3));
 359         return result->data;
 360 }
 361
 362 void BC_Theme::overlay(VFrame *dst, VFrame *src, int in_x1, int in_x2, int shift)
 363 {
 364         int w;
 365         int h;
 366         unsigned char **in_rows;
 367         unsigned char **out_rows;
 368
 369         if( in_x1 < 0 ) {
 370                 w = MIN(src->get_w(), dst->get_w());
 371                 h = MIN(dst->get_h(), src->get_h());
 372                 in_x1 = 0;
 373                 in_x2 = w;
 374         }
 375         else {
 376                 w = in_x2 - in_x1;
 377                 h = MIN(dst->get_h(), src->get_h());
 378         }
 379         in_rows = src->get_rows();
 380         out_rows = dst->get_rows();
 381
 382         switch( src->get_color_model() )
 383         {
 384                 case BC_RGBA8888:
 385                         switch( dst->get_color_model() )
 386                         {
 387                                 case BC_RGBA8888:
 388                                         for( int i=shift; i<h; ++i ) {
 389                                                 unsigned char *in_row = 0;
 390                                                 unsigned char *out_row;
 391
 392                                                 if( !shift ) {
 393                                                         in_row = in_rows[i] + in_x1 * 4;
 394                                                         out_row = out_rows[i];
 395                                                 }
 396                                                 else {
 397                                                         in_row = in_rows[i - 1] + in_x1 * 4;
 398                                                         out_row = out_rows[i] + 4;
 399                                                 }
 400
 401                                                 for( int j=shift; j<w; ++j ) {
 402                                                         int opacity = in_row[3];
 403                                                         int transparency = 0xff - opacity;
 404
 405                                                         out_row[0] = (in_row[0] * opacity + out_row[0] * transparency) / 0xff;
 406                                                         out_row[1] = (in_row[1] * opacity + out_row[1] * transparency) / 0xff;
 407                                                         out_row[2] = (in_row[2] * opacity + out_row[2] * transparency) / 0xff;
 408                                                         out_row[3] = MAX(in_row[3], out_row[3]);
 409                                                         out_row += 4;
 410                                                         in_row += 4;
 411                                                 }
 412                                         }
 413                                         break;
 414
 415                                 case BC_RGB888:
 416                                         for( int i=shift; i<h; ++i ) {
 417                                                 unsigned char *in_row;
 418                                                 unsigned char *out_row = out_rows[i];
 419
 420                                                 if( !shift ) {
 421                                                         in_row = in_rows[i] + in_x1 * 3;
 422                                                         out_row = out_rows[i];
 423                                                 }
 424                                                 else {
 425                                                         in_row = in_rows[i - 1] + in_x1 * 3;
 426                                                         out_row = out_rows[i] + 3;
 427                                                 }
 428
 429                                                 for( int j=shift; j<w; ++j ) {
 430                                                         int opacity = in_row[3];
 431                                                         int transparency = 0xff - opacity;
 432                                                         out_row[0] = (in_row[0] * opacity + out_row[0] * transparency) / 0xff;
 433                                                         out_row[1] = (in_row[1] * opacity + out_row[1] * transparency) / 0xff;
 434                                                         out_row[2] = (in_row[2] * opacity + out_row[2] * transparency) / 0xff;
 435                                                         out_row += 3;
 436                                                         in_row += 4;
 437                                                 }
 438                                         }
 439                                         break;
 440                         }
 441                         break;
 442         }
 443 }
 444
 445 void BC_Theme::set_data(unsigned char *ptr)
 446 {
 447         int hdr_sz = *(int*)ptr - sizeof(int);
 448         unsigned char *cp = ptr + sizeof(int);
 449         unsigned char *dp = cp + hdr_sz;
 450         int start_item = images.size();
 451
 452         while( cp < dp ) {
 453                 char *nm = (char *)cp;
 454                 while( cp < dp && *cp++ );
 455                 if( cp + sizeof(unsigned) > dp ) break;
 456                 unsigned ofs = 0;
 457                 for( int i=sizeof(unsigned); --i>=0; ofs|=cp[i] ) ofs <<= 8;
 458                 images.append(new BC_ImageData(nm, dp+ofs));
 459                 cp += sizeof(unsigned);
 460         }
 461
 462         int items = images.size() - start_item;
 463         data_items.append(items);
 464         qsort(&images[start_item], items, sizeof(images[0]), images_cmpr);
 465 }
 466
 467 int BC_Theme::images_cmpr(const void *ap, const void *bp)
 468 {
 469         BC_ImageData *a = *(BC_ImageData**)ap, *b = *(BC_ImageData**)bp;
 470         return strcmp(a->name, b->name);
 471 }
 472
 473 unsigned char* BC_Theme::get_image_data(const char *name, int log_errs)
 474 {
 475 // Image is the same as the last one
 476         if( last_image_data && !strcmp(last_image_data->name, name) )
 477                 return last_image_data->data;
 478
 479 // look forwards thru data sets for name
 480         int start_item = 0;
 481         for( int i=0,n=data_items.size(); i<n; ++i ) {
 482                 int end_item = start_item + data_items[i];
 483                 int r = end_item, l = start_item-1;
 484 // binary search for image
 485                 int m = 0, v = -1;
 486                 while( r-l > 1 ) {
 487                         m = (l + r) / 2;
 488                         BC_ImageData *image_data = images[m];
 489                         if( !(v=strcmp(name, image_data->name)) ) {
 490                                 image_data->used = 1;
 491                                 last_image_data = image_data;
 492                                 return image_data->data;
 493                         }
 494                         if( v > 0 ) l = m; else r = m;
 495                 }
 496                 start_item = end_item;
 497         }
 498
 499         if( log_errs )
 500                 fprintf(stderr, _("Theme::get_image: %s not found.\n"), name);
 501         return 0;
 502 }
 503
 504 void BC_Theme::check_used()
 505 {
 506 // Can't use because some images are gotten the old fashioned way.
 507 return;
 508         int got_it = 0;
 509         for( int i=0; i<images.size(); ++i ) {
 510                 if( !images[i]->used ) {
 511                         if( !got_it ) printf(_("BC_Theme::check_used: Images aren't used.\n"));
 512                         printf("%s ", images[i]->name);
 513                         got_it = 1;
 514                 }
 515         }
 516         if( got_it ) printf("\n");
 517 }
 518
 519
 520 BC_ThemeSet::BC_ThemeSet(int total, int is_reference, const char *title)
 521 {
 522         this->total = total;
 523         this->title = new char[strlen(title) + 1];
 524         strcpy(this->title, title);
 525         this->is_reference = is_reference;
 526         data = new VFrame*[total];
 527 }
 528
 529 BC_ThemeSet::~BC_ThemeSet()
 530 {
 531         if( data ) {
 532                 if( !is_reference ) {
 533                         for( int i = 0; i < total; i++ )
 534                                 delete data[i];
 535                 }
 536
 537                 delete [] data;
 538         }
 539
 540         delete [] title;
 541 }
 542