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