granicus.if.org Git - imagemagick/blob - MagickCore/annotate.c

   1 /*
   2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   3 %                                                                             %
   4 %                                                                             %
   5 %                                                                             %
   6 %           AAA   N   N  N   N   OOO   TTTTT   AAA   TTTTT  EEEEE             %
   7 %          A   A  NN  N  NN  N  O   O    T    A   A    T    E                 %
   8 %          AAAAA  N N N  N N N  O   O    T    AAAAA    T    EEE               %
   9 %          A   A  N  NN  N  NN  O   O    T    A   A    T    E                 %
  10 %          A   A  N   N  N   N   OOO     T    A   A    T    EEEEE             %
  11 %                                                                             %
  12 %                                                                             %
  13 %                   MagickCore Image Annotation Methods                       %
  14 %                                                                             %
  15 %                              Software Design                                %
  16 %                                John Cristy                                  %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization      %
  21 %  dedicated to making software imaging solutions freely available.           %
  22 %                                                                             %
  23 %  You may not use this file except in compliance with the License.  You may  %
  24 %  obtain a copy of the License at                                            %
  25 %                                                                             %
  26 %    http://www.imagemagick.org/script/license.php                            %
  27 %                                                                             %
  28 %  Unless required by applicable law or agreed to in writing, software        %
  29 %  distributed under the License is distributed on an "AS IS" BASIS,          %
  30 %  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
  31 %  See the License for the specific language governing permissions and        %
  32 %  limitations under the License.                                             %
  33 %                                                                             %
  34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  35 %
  36 % Digital Applications (www.digapp.com) contributed the stroked text algorithm.
  37 % It was written by Leonard Rosenthol.
  38 %
  39 %
  40 */
  41 \f
  42 /*
  43   Include declarations.
  44 */
  45 #include "MagickCore/studio.h"
  46 #include "MagickCore/annotate.h"
  47 #include "MagickCore/attribute.h"
  48 #include "MagickCore/cache-view.h"
  49 #include "MagickCore/client.h"
  50 #include "MagickCore/color.h"
  51 #include "MagickCore/color-private.h"
  52 #include "MagickCore/composite.h"
  53 #include "MagickCore/composite-private.h"
  54 #include "MagickCore/constitute.h"
  55 #include "MagickCore/draw.h"
  56 #include "MagickCore/draw-private.h"
  57 #include "MagickCore/exception.h"
  58 #include "MagickCore/exception-private.h"
  59 #include "MagickCore/gem.h"
  60 #include "MagickCore/geometry.h"
  61 #include "MagickCore/image-private.h"
  62 #include "MagickCore/log.h"
  63 #include "MagickCore/quantum.h"
  64 #include "MagickCore/quantum-private.h"
  65 #include "MagickCore/pixel-accessor.h"
  66 #include "MagickCore/property.h"
  67 #include "MagickCore/resource_.h"
  68 #include "MagickCore/semaphore.h"
  69 #include "MagickCore/statistic.h"
  70 #include "MagickCore/string_.h"
  71 #include "MagickCore/token-private.h"
  72 #include "MagickCore/transform.h"
  73 #include "MagickCore/type.h"
  74 #include "MagickCore/utility.h"
  75 #include "MagickCore/xwindow-private.h"
  76 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
  77 #if defined(__MINGW32__)
  78 #  undef interface
  79 #endif
  80 #if defined(MAGICKCORE_HAVE_FT2BUILD_H)
  81 #  include <ft2build.h>
  82 #endif
  83 #if defined(FT_FREETYPE_H)
  84 #  include FT_FREETYPE_H
  85 #else
  86 #  include <freetype/freetype.h>
  87 #endif
  88 #if defined(FT_GLYPH_H)
  89 #  include FT_GLYPH_H
  90 #else
  91 #  include <freetype/ftglyph.h>
  92 #endif
  93 #if defined(FT_OUTLINE_H)
  94 #  include FT_OUTLINE_H
  95 #else
  96 #  include <freetype/ftoutln.h>
  97 #endif
  98 #if defined(FT_BBOX_H)
  99 #  include FT_BBOX_H
 100 #else
 101 #  include <freetype/ftbbox.h>
 102 #endif /* defined(FT_BBOX_H) */
 103 #endif
 104 \f
 105 /*
 106   Annotate semaphores.
 107 */
 108 static SemaphoreInfo
 109   *annotate_semaphore = (SemaphoreInfo *) NULL;
 110 \f
 111 /*
 112   Forward declarations.
 113 */
 114 static MagickBooleanType
 115   RenderType(Image *,const DrawInfo *,const PointInfo *,TypeMetric *),
 116   RenderPostscript(Image *,const DrawInfo *,const PointInfo *,TypeMetric *),
 117   RenderFreetype(Image *,const DrawInfo *,const char *,const PointInfo *,
 118     TypeMetric *),
 119   RenderX11(Image *,const DrawInfo *,const PointInfo *,TypeMetric *);
 120 \f
 121 /*
 122 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 123 %                                                                             %
 124 %                                                                             %
 125 %                                                                             %
 126 +   A n n o t a t e C o m p o n e n t G e n e s i s                           %
 127 %                                                                             %
 128 %                                                                             %
 129 %                                                                             %
 130 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 131 %
 132 %  AnnotateComponentGenesis() instantiates the annotate component.
 133 %
 134 %  The format of the AnnotateComponentGenesis method is:
 135 %
 136 %      MagickBooleanType AnnotateComponentGenesis(void)
 137 %
 138 */
 139 MagickExport MagickBooleanType AnnotateComponentGenesis(void)
 140 {
 141   AcquireSemaphoreInfo(&annotate_semaphore);
 142   return(MagickTrue);
 143 }
 144 \f
 145 /*
 146 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 147 %                                                                             %
 148 %                                                                             %
 149 %                                                                             %
 150 +   A n n o t a t e C o m p o n e n t T e r m i n u s                         %
 151 %                                                                             %
 152 %                                                                             %
 153 %                                                                             %
 154 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 155 %
 156 %  AnnotateComponentTerminus() destroys the annotate component.
 157 %
 158 %  The format of the AnnotateComponentTerminus method is:
 159 %
 160 %      AnnotateComponentTerminus(void)
 161 %
 162 */
 163 MagickExport void AnnotateComponentTerminus(void)
 164 {
 165   if (annotate_semaphore == (SemaphoreInfo *) NULL)
 166     AcquireSemaphoreInfo(&annotate_semaphore);
 167   DestroySemaphoreInfo(&annotate_semaphore);
 168 }
 169 \f
 170 /*
 171 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 172 %                                                                             %
 173 %                                                                             %
 174 %                                                                             %
 175 %   A n n o t a t e I m a g e                                                 %
 176 %                                                                             %
 177 %                                                                             %
 178 %                                                                             %
 179 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 180 %
 181 %  AnnotateImage() annotates an image with text.  Optionally you can include
 182 %  any of the following bits of information about the image by embedding
 183 %  the appropriate special characters:
 184 %
 185 %    %b   file size in bytes.
 186 %    %c   comment.
 187 %    %d   directory in which the image resides.
 188 %    %e   extension of the image file.
 189 %    %f   original filename of the image.
 190 %    %h   height of image.
 191 %    %i   filename of the image.
 192 %    %k   number of unique colors.
 193 %    %l   image label.
 194 %    %m   image file format.
 195 %    %n   number of images in a image sequence.
 196 %    %o   output image filename.
 197 %    %p   page number of the image.
 198 %    %q   image depth (8 or 16).
 199 %    %q   image depth (8 or 16).
 200 %    %s   image scene number.
 201 %    %t   image filename without any extension.
 202 %    %u   a unique temporary filename.
 203 %    %w   image width.
 204 %    %x   x resolution of the image.
 205 %    %y   y resolution of the image.
 206 %
 207 %  The format of the AnnotateImage method is:
 208 %
 209 %      MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info)
 210 %
 211 %  A description of each parameter follows:
 212 %
 213 %    o image: the image.
 214 %
 215 %    o draw_info: the draw info.
 216 %
 217 */
 218 MagickExport MagickBooleanType AnnotateImage(Image *image,
 219   const DrawInfo *draw_info)
 220 {
 221   char
 222     primitive[MaxTextExtent],
 223     **textlist;
 224
 225   DrawInfo
 226     *annotate,
 227     *annotate_info;
 228
 229   GeometryInfo
 230     geometry_info;
 231
 232   MagickBooleanType
 233     status;
 234
 235   PointInfo
 236     offset;
 237
 238   RectangleInfo
 239     geometry;
 240
 241   register ssize_t
 242     i;
 243
 244   size_t
 245     length;
 246
 247   TypeMetric
 248     metrics;
 249
 250   size_t
 251     height,
 252     number_lines;
 253
 254   assert(image != (Image *) NULL);
 255   assert(image->signature == MagickSignature);
 256   if (image->debug != MagickFalse)
 257     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 258   assert(draw_info != (DrawInfo *) NULL);
 259   assert(draw_info->signature == MagickSignature);
 260   if (draw_info->text == (char *) NULL)
 261     return(MagickFalse);
 262   if (*draw_info->text == '\0')
 263     return(MagickTrue);
 264   textlist=StringToList(draw_info->text);
 265   if (textlist == (char **) NULL)
 266     return(MagickFalse);
 267   length=strlen(textlist[0]);
 268   for (i=1; textlist[i] != (char *) NULL; i++)
 269     if (strlen(textlist[i]) > length)
 270       length=strlen(textlist[i]);
 271   number_lines=(size_t) i;
 272   annotate=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 273   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 274   SetGeometry(image,&geometry);
 275   SetGeometryInfo(&geometry_info);
 276   if (annotate_info->geometry != (char *) NULL)
 277     {
 278       (void) ParsePageGeometry(image,annotate_info->geometry,&geometry,
 279         &image->exception);
 280       (void) ParseGeometry(annotate_info->geometry,&geometry_info);
 281     }
 282   if (SetImageStorageClass(image,DirectClass,&image->exception) == MagickFalse)
 283     return(MagickFalse);
 284   status=MagickTrue;
 285   for (i=0; textlist[i] != (char *) NULL; i++)
 286   {
 287     /*
 288       Position text relative to image.
 289     */
 290     annotate_info->affine.tx=geometry_info.xi-image->page.x;
 291     annotate_info->affine.ty=geometry_info.psi-image->page.y;
 292     (void) CloneString(&annotate->text,textlist[i]);
 293     (void) GetTypeMetrics(image,annotate,&metrics);
 294     height=(ssize_t) (metrics.ascent-metrics.descent+
 295       draw_info->interline_spacing+0.5);
 296     switch (annotate->gravity)
 297     {
 298       case UndefinedGravity:
 299       default:
 300       {
 301         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
 302         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
 303         break;
 304       }
 305       case NorthWestGravity:
 306       {
 307         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 308           annotate_info->affine.ry*height+annotate_info->affine.ry*
 309           (metrics.ascent+metrics.descent);
 310         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 311           annotate_info->affine.sy*height+annotate_info->affine.sy*
 312           metrics.ascent;
 313         break;
 314       }
 315       case NorthGravity:
 316       {
 317         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 318           geometry.width/2.0+i*annotate_info->affine.ry*height-
 319           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
 320           annotate_info->affine.ry*(metrics.ascent+metrics.descent);
 321         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 322           annotate_info->affine.sy*height+annotate_info->affine.sy*
 323           metrics.ascent-annotate_info->affine.rx*(metrics.width-
 324           metrics.bounds.x1)/2.0;
 325         break;
 326       }
 327       case NorthEastGravity:
 328       {
 329         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 330           geometry.width+i*annotate_info->affine.ry*height-
 331           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
 332           annotate_info->affine.ry*(metrics.ascent+metrics.descent)-1.0;
 333         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 334           annotate_info->affine.sy*height+annotate_info->affine.sy*
 335           metrics.ascent-annotate_info->affine.rx*(metrics.width-
 336           metrics.bounds.x1);
 337         break;
 338       }
 339       case WestGravity:
 340       {
 341         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 342           annotate_info->affine.ry*height+annotate_info->affine.ry*
 343           (metrics.ascent+metrics.descent-(number_lines-1.0)*height)/2.0;
 344         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 345           geometry.height/2.0+i*annotate_info->affine.sy*height+
 346           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 347           (number_lines-1.0)*height)/2.0;
 348         break;
 349       }
 350       case StaticGravity:
 351       case CenterGravity:
 352       {
 353         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 354           geometry.width/2.0+i*annotate_info->affine.ry*height-
 355           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
 356           annotate_info->affine.ry*(metrics.ascent+metrics.descent-
 357           (number_lines-1)*height)/2.0;
 358         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 359           geometry.height/2.0+i*annotate_info->affine.sy*height-
 360           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0+
 361           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 362           (number_lines-1.0)*height)/2.0;
 363         break;
 364       }
 365       case EastGravity:
 366       {
 367         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 368           geometry.width+i*annotate_info->affine.ry*height-
 369           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
 370           annotate_info->affine.ry*(metrics.ascent+metrics.descent-
 371           (number_lines-1.0)*height)/2.0-1.0;
 372         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 373           geometry.height/2.0+i*annotate_info->affine.sy*height-
 374           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)+
 375           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 376           (number_lines-1.0)*height)/2.0;
 377         break;
 378       }
 379       case SouthWestGravity:
 380       {
 381         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 382           annotate_info->affine.ry*height-annotate_info->affine.ry*
 383           (number_lines-1.0)*height;
 384         offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
 385           geometry.height+i*annotate_info->affine.sy*height-
 386           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 387         break;
 388       }
 389       case SouthGravity:
 390       {
 391         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 392           geometry.width/2.0+i*annotate_info->affine.ry*height-
 393           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0-
 394           annotate_info->affine.ry*(number_lines-1.0)*height/2.0;
 395         offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
 396           geometry.height+i*annotate_info->affine.sy*height-
 397           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0-
 398           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 399         break;
 400       }
 401       case SouthEastGravity:
 402       {
 403         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 404           geometry.width+i*annotate_info->affine.ry*height-
 405           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)-
 406           annotate_info->affine.ry*(number_lines-1.0)*height-1.0;
 407         offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
 408           geometry.height+i*annotate_info->affine.sy*height-
 409           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)-
 410           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 411         break;
 412       }
 413     }
 414     switch (annotate->align)
 415     {
 416       case LeftAlign:
 417       {
 418         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
 419         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
 420         break;
 421       }
 422       case CenterAlign:
 423       {
 424         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
 425           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0;
 426         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
 427           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0;
 428         break;
 429       }
 430       case RightAlign:
 431       {
 432         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
 433           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1);
 434         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
 435           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1);
 436         break;
 437       }
 438       default:
 439         break;
 440     }
 441     if (draw_info->undercolor.alpha != TransparentAlpha)
 442       {
 443         DrawInfo
 444           *undercolor_info;
 445
 446         /*
 447           Text box.
 448         */
 449         undercolor_info=CloneDrawInfo((ImageInfo *) NULL,(DrawInfo *) NULL);
 450         undercolor_info->fill=draw_info->undercolor;
 451         undercolor_info->affine=draw_info->affine;
 452         undercolor_info->affine.tx=offset.x-draw_info->affine.ry*metrics.ascent;
 453         undercolor_info->affine.ty=offset.y-draw_info->affine.sy*metrics.ascent;
 454         (void) FormatLocaleString(primitive,MaxTextExtent,
 455           "rectangle 0,0 %g,%.20g",metrics.origin.x,(double) height);
 456         (void) CloneString(&undercolor_info->primitive,primitive);
 457         (void) DrawImage(image,undercolor_info);
 458         (void) DestroyDrawInfo(undercolor_info);
 459       }
 460     annotate_info->affine.tx=offset.x;
 461     annotate_info->affine.ty=offset.y;
 462     (void) FormatLocaleString(primitive,MaxTextExtent,"stroke-width %g "
 463       "line 0,0 %g,0",metrics.underline_thickness,metrics.width);
 464     if (annotate->decorate == OverlineDecoration)
 465       {
 466         annotate_info->affine.ty-=(draw_info->affine.sy*(metrics.ascent+
 467           metrics.descent-metrics.underline_position));
 468         (void) CloneString(&annotate_info->primitive,primitive);
 469         (void) DrawImage(image,annotate_info);
 470       }
 471     else
 472       if (annotate->decorate == UnderlineDecoration)
 473         {
 474           annotate_info->affine.ty-=(draw_info->affine.sy*
 475             metrics.underline_position);
 476           (void) CloneString(&annotate_info->primitive,primitive);
 477           (void) DrawImage(image,annotate_info);
 478         }
 479     /*
 480       Annotate image with text.
 481     */
 482     status=RenderType(image,annotate,&offset,&metrics);
 483     if (status == MagickFalse)
 484       break;
 485     if (annotate->decorate == LineThroughDecoration)
 486       {
 487         annotate_info->affine.ty-=(draw_info->affine.sy*(height+
 488           metrics.underline_position+metrics.descent)/2.0);
 489         (void) CloneString(&annotate_info->primitive,primitive);
 490         (void) DrawImage(image,annotate_info);
 491       }
 492   }
 493   /*
 494     Relinquish resources.
 495   */
 496   annotate_info=DestroyDrawInfo(annotate_info);
 497   annotate=DestroyDrawInfo(annotate);
 498   for (i=0; textlist[i] != (char *) NULL; i++)
 499     textlist[i]=DestroyString(textlist[i]);
 500   textlist=(char **) RelinquishMagickMemory(textlist);
 501   return(status);
 502 }
 503 \f
 504 /*
 505 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 506 %                                                                             %
 507 %                                                                             %
 508 %                                                                             %
 509 %  F o r m a t M a g i c k C a p t i o n                                      %
 510 %                                                                             %
 511 %                                                                             %
 512 %                                                                             %
 513 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 514 %
 515 %  FormatMagickCaption() formats a caption so that it fits within the image
 516 %  width.  It returns the number of lines in the formatted caption.
 517 %
 518 %  The format of the FormatMagickCaption method is:
 519 %
 520 %      ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
 521 %        const MagickBooleanType split,TypeMetric *metrics,char **caption)
 522 %
 523 %  A description of each parameter follows.
 524 %
 525 %    o image:  The image.
 526 %
 527 %    o draw_info: the draw info.
 528 %
 529 %    o split: when no convenient line breaks-- insert newline.
 530 %
 531 %    o metrics: Return the font metrics in this structure.
 532 %
 533 %    o caption: the caption.
 534 %
 535 */
 536 MagickExport ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
 537   const MagickBooleanType split,TypeMetric *metrics,char **caption)
 538 {
 539   MagickBooleanType
 540     status;
 541
 542   register char
 543     *p,
 544     *q,
 545     *s;
 546
 547   register ssize_t
 548     i;
 549
 550   size_t
 551     width;
 552
 553   q=draw_info->text;
 554   s=(char *) NULL;
 555   for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
 556   {
 557     if (IsUTFSpace(GetUTFCode(p)) != MagickFalse)
 558       s=p;
 559     for (i=0; i < (ssize_t) GetUTFOctets(p); i++)
 560       *q++=(*(p+i));
 561     *q='\0';
 562     status=GetTypeMetrics(image,draw_info,metrics);
 563     if (status == MagickFalse)
 564       break;
 565     width=(size_t) floor(metrics->width+0.5);
 566     if (GetUTFCode(p) != '\n')
 567       if (width <= image->columns)
 568         continue;
 569     if (s == (char *) NULL)
 570       {
 571         s=p;
 572         while ((IsUTFSpace(GetUTFCode(s)) == MagickFalse) &&
 573                (GetUTFCode(s) != 0))
 574           s+=GetUTFOctets(s);
 575       }
 576     if (GetUTFCode(s) != 0)
 577       {
 578         *s='\n';
 579         p=s;
 580       }
 581     else
 582       if (split != MagickFalse)
 583         {
 584           char
 585             *target;
 586
 587           ssize_t
 588             n;
 589
 590           /*
 591             No convenient line breaks-- insert newline.
 592           */
 593           target=AcquireString(*caption);
 594           n=p-(*caption);
 595           CopyMagickString(target,*caption,n+1);
 596           ConcatenateMagickString(target,"\n",strlen(*caption)+1);
 597           ConcatenateMagickString(target,p,strlen(*caption)+2);
 598           (void) DestroyString(*caption);
 599           *caption=target;
 600           p=(*caption)+n;
 601         }
 602     s=(char *) NULL;
 603     q=draw_info->text;
 604   }
 605   i=0;
 606   for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
 607     if (GetUTFCode(p) == '\n')
 608       i++;
 609   return(i);
 610 }
 611 \f
 612 /*
 613 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 614 %                                                                             %
 615 %                                                                             %
 616 %                                                                             %
 617 %   G e t M u l t i l i n e T y p e M e t r i c s                             %
 618 %                                                                             %
 619 %                                                                             %
 620 %                                                                             %
 621 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 622 %
 623 %  GetMultilineTypeMetrics() returns the following information for the
 624 %  specified font and text:
 625 %
 626 %    character width
 627 %    character height
 628 %    ascender
 629 %    descender
 630 %    text width
 631 %    text height
 632 %    maximum horizontal advance
 633 %    bounds: x1
 634 %    bounds: y1
 635 %    bounds: x2
 636 %    bounds: y2
 637 %    origin: x
 638 %    origin: y
 639 %    underline position
 640 %    underline thickness
 641 %
 642 %  This method is like GetTypeMetrics() but it returns the maximum text width
 643 %  and height for multiple lines of text.
 644 %
 645 %  The format of the GetMultilineTypeMetrics method is:
 646 %
 647 %      MagickBooleanType GetMultilineTypeMetrics(Image *image,
 648 %        const DrawInfo *draw_info,TypeMetric *metrics)
 649 %
 650 %  A description of each parameter follows:
 651 %
 652 %    o image: the image.
 653 %
 654 %    o draw_info: the draw info.
 655 %
 656 %    o metrics: Return the font metrics in this structure.
 657 %
 658 */
 659 MagickExport MagickBooleanType GetMultilineTypeMetrics(Image *image,
 660   const DrawInfo *draw_info,TypeMetric *metrics)
 661 {
 662   char
 663     **textlist;
 664
 665   DrawInfo
 666     *annotate_info;
 667
 668   MagickBooleanType
 669     status;
 670
 671   register ssize_t
 672     i;
 673
 674   TypeMetric
 675     extent;
 676
 677   assert(image != (Image *) NULL);
 678   assert(image->signature == MagickSignature);
 679   if (image->debug != MagickFalse)
 680     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 681   assert(draw_info != (DrawInfo *) NULL);
 682   assert(draw_info->text != (char *) NULL);
 683   assert(draw_info->signature == MagickSignature);
 684   if (*draw_info->text == '\0')
 685     return(MagickFalse);
 686   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 687   annotate_info->text=DestroyString(annotate_info->text);
 688   /*
 689     Convert newlines to multiple lines of text.
 690   */
 691   textlist=StringToList(draw_info->text);
 692   if (textlist == (char **) NULL)
 693     return(MagickFalse);
 694   annotate_info->render=MagickFalse;
 695   annotate_info->direction=UndefinedDirection;
 696   (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
 697   (void) ResetMagickMemory(&extent,0,sizeof(extent));
 698   /*
 699     Find the widest of the text lines.
 700   */
 701   annotate_info->text=textlist[0];
 702   status=GetTypeMetrics(image,annotate_info,&extent);
 703   *metrics=extent;
 704   for (i=1; textlist[i] != (char *) NULL; i++)
 705   {
 706     annotate_info->text=textlist[i];
 707     status=GetTypeMetrics(image,annotate_info,&extent);
 708     if (extent.width > metrics->width)
 709       *metrics=extent;
 710   }
 711   metrics->height=(double) (i*(size_t) (metrics->ascent-
 712     metrics->descent+0.5)+(i-1)*draw_info->interline_spacing);
 713   /*
 714     Relinquish resources.
 715   */
 716   annotate_info->text=(char *) NULL;
 717   annotate_info=DestroyDrawInfo(annotate_info);
 718   for (i=0; textlist[i] != (char *) NULL; i++)
 719     textlist[i]=DestroyString(textlist[i]);
 720   textlist=(char **) RelinquishMagickMemory(textlist);
 721   return(status);
 722 }
 723 \f
 724 /*
 725 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 726 %                                                                             %
 727 %                                                                             %
 728 %                                                                             %
 729 %   G e t T y p e M e t r i c s                                               %
 730 %                                                                             %
 731 %                                                                             %
 732 %                                                                             %
 733 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 734 %
 735 %  GetTypeMetrics() returns the following information for the specified font
 736 %  and text:
 737 %
 738 %    character width
 739 %    character height
 740 %    ascender
 741 %    descender
 742 %    text width
 743 %    text height
 744 %    maximum horizontal advance
 745 %    bounds: x1
 746 %    bounds: y1
 747 %    bounds: x2
 748 %    bounds: y2
 749 %    origin: x
 750 %    origin: y
 751 %    underline position
 752 %    underline thickness
 753 %
 754 %  The format of the GetTypeMetrics method is:
 755 %
 756 %      MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
 757 %        TypeMetric *metrics)
 758 %
 759 %  A description of each parameter follows:
 760 %
 761 %    o image: the image.
 762 %
 763 %    o draw_info: the draw info.
 764 %
 765 %    o metrics: Return the font metrics in this structure.
 766 %
 767 */
 768 MagickExport MagickBooleanType GetTypeMetrics(Image *image,
 769   const DrawInfo *draw_info,TypeMetric *metrics)
 770 {
 771   DrawInfo
 772     *annotate_info;
 773
 774   MagickBooleanType
 775     status;
 776
 777   PointInfo
 778     offset;
 779
 780   assert(image != (Image *) NULL);
 781   assert(image->signature == MagickSignature);
 782   if (image->debug != MagickFalse)
 783     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 784   assert(draw_info != (DrawInfo *) NULL);
 785   assert(draw_info->text != (char *) NULL);
 786   assert(draw_info->signature == MagickSignature);
 787   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 788   annotate_info->render=MagickFalse;
 789   annotate_info->direction=UndefinedDirection;
 790   (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
 791   offset.x=0.0;
 792   offset.y=0.0;
 793   status=RenderType(image,annotate_info,&offset,metrics);
 794   if (image->debug != MagickFalse)
 795     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Metrics: text: %s; "
 796       "width: %g; height: %g; ascent: %g; descent: %g; max advance: %g; "
 797       "bounds: %g,%g  %g,%g; origin: %g,%g; pixels per em: %g,%g; "
 798       "underline position: %g; underline thickness: %g",annotate_info->text,
 799       metrics->width,metrics->height,metrics->ascent,metrics->descent,
 800       metrics->max_advance,metrics->bounds.x1,metrics->bounds.y1,
 801       metrics->bounds.x2,metrics->bounds.y2,metrics->origin.x,metrics->origin.y,
 802       metrics->pixels_per_em.x,metrics->pixels_per_em.y,
 803       metrics->underline_position,metrics->underline_thickness);
 804   annotate_info=DestroyDrawInfo(annotate_info);
 805   return(status);
 806 }
 807 \f
 808 /*
 809 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 810 %                                                                             %
 811 %                                                                             %
 812 %                                                                             %
 813 +   R e n d e r T y p e                                                       %
 814 %                                                                             %
 815 %                                                                             %
 816 %                                                                             %
 817 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 818 %
 819 %  RenderType() renders text on the image.  It also returns the bounding box of
 820 %  the text relative to the image.
 821 %
 822 %  The format of the RenderType method is:
 823 %
 824 %      MagickBooleanType RenderType(Image *image,DrawInfo *draw_info,
 825 %        const PointInfo *offset,TypeMetric *metrics)
 826 %
 827 %  A description of each parameter follows:
 828 %
 829 %    o image: the image.
 830 %
 831 %    o draw_info: the draw info.
 832 %
 833 %    o offset: (x,y) location of text relative to image.
 834 %
 835 %    o metrics: bounding box of text.
 836 %
 837 */
 838 static MagickBooleanType RenderType(Image *image,const DrawInfo *draw_info,
 839   const PointInfo *offset,TypeMetric *metrics)
 840 {
 841   const TypeInfo
 842     *type_info;
 843
 844   DrawInfo
 845     *annotate_info;
 846
 847   MagickBooleanType
 848     status;
 849
 850   type_info=(const TypeInfo *) NULL;
 851   if (draw_info->font != (char *) NULL)
 852     {
 853       if (*draw_info->font == '@')
 854         {
 855           status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
 856             metrics);
 857           return(status);
 858         }
 859       if (*draw_info->font == '-')
 860         return(RenderX11(image,draw_info,offset,metrics));
 861       if (IsPathAccessible(draw_info->font) != MagickFalse)
 862         {
 863           status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
 864             metrics);
 865           return(status);
 866         }
 867       type_info=GetTypeInfo(draw_info->font,&image->exception);
 868       if (type_info == (const TypeInfo *) NULL)
 869         (void) ThrowMagickException(&image->exception,GetMagickModule(),
 870           TypeWarning,"UnableToReadFont","`%s'",draw_info->font);
 871     }
 872   if ((type_info == (const TypeInfo *) NULL) &&
 873       (draw_info->family != (const char *) NULL))
 874     {
 875       type_info=GetTypeInfoByFamily(draw_info->family,draw_info->style,
 876         draw_info->stretch,draw_info->weight,&image->exception);
 877       if (type_info == (const TypeInfo *) NULL)
 878         (void) ThrowMagickException(&image->exception,GetMagickModule(),
 879           TypeWarning,"UnableToReadFont","`%s'",draw_info->family);
 880     }
 881   if (type_info == (const TypeInfo *) NULL)
 882     type_info=GetTypeInfoByFamily("Arial",draw_info->style,
 883       draw_info->stretch,draw_info->weight,&image->exception);
 884   if (type_info == (const TypeInfo *) NULL)
 885     type_info=GetTypeInfoByFamily("Helvetica",draw_info->style,
 886       draw_info->stretch,draw_info->weight,&image->exception);
 887   if (type_info == (const TypeInfo *) NULL)
 888     type_info=GetTypeInfoByFamily("Century Schoolbook",draw_info->style,
 889       draw_info->stretch,draw_info->weight,&image->exception);
 890   if (type_info == (const TypeInfo *) NULL)
 891     type_info=GetTypeInfoByFamily((const char *) NULL,draw_info->style,
 892       draw_info->stretch,draw_info->weight,&image->exception);
 893   if (type_info == (const TypeInfo *) NULL)
 894     type_info=GetTypeInfo("*",&image->exception);
 895   if (type_info == (const TypeInfo *) NULL)
 896     {
 897       status=RenderFreetype(image,draw_info,draw_info->encoding,offset,metrics);
 898       return(status);
 899     }
 900   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 901   annotate_info->face=type_info->face;
 902   if (type_info->metrics != (char *) NULL)
 903     (void) CloneString(&annotate_info->metrics,type_info->metrics);
 904   if (type_info->glyphs != (char *) NULL)
 905     (void) CloneString(&annotate_info->font,type_info->glyphs);
 906   status=RenderFreetype(image,annotate_info,type_info->encoding,offset,metrics);
 907   annotate_info=DestroyDrawInfo(annotate_info);
 908   return(status);
 909 }
 910 \f
 911 /*
 912 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 913 %                                                                             %
 914 %                                                                             %
 915 %                                                                             %
 916 +   R e n d e r F r e e t y p e                                               %
 917 %                                                                             %
 918 %                                                                             %
 919 %                                                                             %
 920 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 921 %
 922 %  RenderFreetype() renders text on the image with a Truetype font.  It also
 923 %  returns the bounding box of the text relative to the image.
 924 %
 925 %  The format of the RenderFreetype method is:
 926 %
 927 %      MagickBooleanType RenderFreetype(Image *image,DrawInfo *draw_info,
 928 %        const char *encoding,const PointInfo *offset,TypeMetric *metrics)
 929 %
 930 %  A description of each parameter follows:
 931 %
 932 %    o image: the image.
 933 %
 934 %    o draw_info: the draw info.
 935 %
 936 %    o encoding: the font encoding.
 937 %
 938 %    o offset: (x,y) location of text relative to image.
 939 %
 940 %    o metrics: bounding box of text.
 941 %
 942 */
 943
 944 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
 945
 946 static int TraceCubicBezier(FT_Vector *p,FT_Vector *q,FT_Vector *to,
 947   DrawInfo *draw_info)
 948 {
 949   AffineMatrix
 950     affine;
 951
 952   char
 953     path[MaxTextExtent];
 954
 955   affine=draw_info->affine;
 956   (void) FormatLocaleString(path,MaxTextExtent,
 957     "C%g,%g %g,%g %g,%g",affine.tx+p->x/64.0,affine.ty-
 958     p->y/64.0,affine.tx+q->x/64.0,affine.ty-q->y/64.0,affine.tx+to->x/64.0,
 959     affine.ty-to->y/64.0);
 960   (void) ConcatenateString(&draw_info->primitive,path);
 961   return(0);
 962 }
 963
 964 static int TraceLineTo(FT_Vector *to,DrawInfo *draw_info)
 965 {
 966   AffineMatrix
 967     affine;
 968
 969   char
 970     path[MaxTextExtent];
 971
 972   affine=draw_info->affine;
 973   (void) FormatLocaleString(path,MaxTextExtent,"L%g,%g",affine.tx+
 974     to->x/64.0,affine.ty-to->y/64.0);
 975   (void) ConcatenateString(&draw_info->primitive,path);
 976   return(0);
 977 }
 978
 979 static int TraceMoveTo(FT_Vector *to,DrawInfo *draw_info)
 980 {
 981   AffineMatrix
 982     affine;
 983
 984   char
 985     path[MaxTextExtent];
 986
 987   affine=draw_info->affine;
 988   (void) FormatLocaleString(path,MaxTextExtent,"M%g,%g",affine.tx+
 989     to->x/64.0,affine.ty-to->y/64.0);
 990   (void) ConcatenateString(&draw_info->primitive,path);
 991   return(0);
 992 }
 993
 994 static int TraceQuadraticBezier(FT_Vector *control,FT_Vector *to,
 995   DrawInfo *draw_info)
 996 {
 997   AffineMatrix
 998     affine;
 999
1000   char
1001     path[MaxTextExtent];
1002
1003   affine=draw_info->affine;
1004   (void) FormatLocaleString(path,MaxTextExtent,"Q%g,%g %g,%g",
1005     affine.tx+control->x/64.0,affine.ty-control->y/64.0,affine.tx+to->x/64.0,
1006     affine.ty-to->y/64.0);
1007   (void) ConcatenateString(&draw_info->primitive,path);
1008   return(0);
1009 }
1010
1011 static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
1012   const char *encoding,const PointInfo *offset,TypeMetric *metrics)
1013 {
1014 #if !defined(FT_OPEN_PATHNAME)
1015 #define FT_OPEN_PATHNAME  ft_open_pathname
1016 #endif
1017
1018   typedef struct _GlyphInfo
1019   {
1020     FT_UInt
1021       id;
1022
1023     FT_Vector
1024       origin;
1025
1026     FT_Glyph
1027       image;
1028   } GlyphInfo;
1029
1030   const char
1031     *value;
1032
1033   double
1034     direction;
1035
1036   DrawInfo
1037     *annotate_info;
1038
1039   FT_BBox
1040     bounds;
1041
1042   FT_BitmapGlyph
1043     bitmap;
1044
1045   FT_Encoding
1046     encoding_type;
1047
1048   FT_Error
1049     status;
1050
1051   FT_Face
1052     face;
1053
1054   FT_Int32
1055     flags;
1056
1057   FT_Library
1058     library;
1059
1060   FT_Matrix
1061     affine;
1062
1063   FT_Open_Args
1064     args;
1065
1066   FT_Vector
1067     origin;
1068
1069   GlyphInfo
1070     glyph,
1071     last_glyph;
1072
1073   PointInfo
1074     point,
1075     resolution;
1076
1077   register char
1078     *p;
1079
1080   ssize_t
1081     code,
1082     y;
1083
1084   static FT_Outline_Funcs
1085     OutlineMethods =
1086     {
1087       (FT_Outline_MoveTo_Func) TraceMoveTo,
1088       (FT_Outline_LineTo_Func) TraceLineTo,
1089       (FT_Outline_ConicTo_Func) TraceQuadraticBezier,
1090       (FT_Outline_CubicTo_Func) TraceCubicBezier,
1091       0, 0
1092     };
1093
1094   unsigned char
1095     *utf8;
1096
1097   /*
1098     Initialize Truetype library.
1099   */
1100   status=FT_Init_FreeType(&library);
1101   if (status != 0)
1102     ThrowBinaryException(TypeError,"UnableToInitializeFreetypeLibrary",
1103       image->filename);
1104   args.flags=FT_OPEN_PATHNAME;
1105   if (draw_info->font == (char *) NULL)
1106     args.pathname=ConstantString("helvetica");
1107   else
1108     if (*draw_info->font != '@')
1109       args.pathname=ConstantString(draw_info->font);
1110     else
1111       args.pathname=ConstantString(draw_info->font+1);
1112   face=(FT_Face) NULL;
1113   status=FT_Open_Face(library,&args,(long) draw_info->face,&face);
1114   args.pathname=DestroyString(args.pathname);
1115   if (status != 0)
1116     {
1117       (void) FT_Done_FreeType(library);
1118       (void) ThrowMagickException(&image->exception,GetMagickModule(),
1119         TypeError,"UnableToReadFont","`%s'",draw_info->font);
1120       return(RenderPostscript(image,draw_info,offset,metrics));
1121     }
1122   if ((draw_info->metrics != (char *) NULL) &&
1123       (IsPathAccessible(draw_info->metrics) != MagickFalse))
1124     (void) FT_Attach_File(face,draw_info->metrics);
1125   encoding_type=ft_encoding_unicode;
1126   status=FT_Select_Charmap(face,encoding_type);
1127   if ((status != 0) && (face->num_charmaps != 0))
1128     status=FT_Set_Charmap(face,face->charmaps[0]);
1129   if (encoding != (const char *) NULL)
1130     {
1131       if (LocaleCompare(encoding,"AdobeCustom") == 0)
1132         encoding_type=ft_encoding_adobe_custom;
1133       if (LocaleCompare(encoding,"AdobeExpert") == 0)
1134         encoding_type=ft_encoding_adobe_expert;
1135       if (LocaleCompare(encoding,"AdobeStandard") == 0)
1136         encoding_type=ft_encoding_adobe_standard;
1137       if (LocaleCompare(encoding,"AppleRoman") == 0)
1138         encoding_type=ft_encoding_apple_roman;
1139       if (LocaleCompare(encoding,"BIG5") == 0)
1140         encoding_type=ft_encoding_big5;
1141       if (LocaleCompare(encoding,"GB2312") == 0)
1142         encoding_type=ft_encoding_gb2312;
1143       if (LocaleCompare(encoding,"Johab") == 0)
1144         encoding_type=ft_encoding_johab;
1145 #if defined(ft_encoding_latin_1)
1146       if (LocaleCompare(encoding,"Latin-1") == 0)
1147         encoding_type=ft_encoding_latin_1;
1148 #endif
1149       if (LocaleCompare(encoding,"Latin-2") == 0)
1150         encoding_type=ft_encoding_latin_2;
1151       if (LocaleCompare(encoding,"None") == 0)
1152         encoding_type=ft_encoding_none;
1153       if (LocaleCompare(encoding,"SJIScode") == 0)
1154         encoding_type=ft_encoding_sjis;
1155       if (LocaleCompare(encoding,"Symbol") == 0)
1156         encoding_type=ft_encoding_symbol;
1157       if (LocaleCompare(encoding,"Unicode") == 0)
1158         encoding_type=ft_encoding_unicode;
1159       if (LocaleCompare(encoding,"Wansung") == 0)
1160         encoding_type=ft_encoding_wansung;
1161       status=FT_Select_Charmap(face,encoding_type);
1162       if (status != 0)
1163         ThrowBinaryException(TypeError,"UnrecognizedFontEncoding",encoding);
1164     }
1165   /*
1166     Set text size.
1167   */
1168   resolution.x=DefaultResolution;
1169   resolution.y=DefaultResolution;
1170   if (draw_info->density != (char *) NULL)
1171     {
1172       GeometryInfo
1173         geometry_info;
1174
1175       MagickStatusType
1176         flags;
1177
1178       flags=ParseGeometry(draw_info->density,&geometry_info);
1179       resolution.x=geometry_info.rho;
1180       resolution.y=geometry_info.sigma;
1181       if ((flags & SigmaValue) == 0)
1182         resolution.y=resolution.x;
1183     }
1184   status=FT_Set_Char_Size(face,(FT_F26Dot6) (64.0*draw_info->pointsize),
1185     (FT_F26Dot6) (64.0*draw_info->pointsize),(FT_UInt) resolution.x,
1186     (FT_UInt) resolution.y);
1187   metrics->pixels_per_em.x=face->size->metrics.x_ppem;
1188   metrics->pixels_per_em.y=face->size->metrics.y_ppem;
1189   metrics->ascent=(double) face->size->metrics.ascender/64.0;
1190   metrics->descent=(double) face->size->metrics.descender/64.0;
1191   metrics->width=0;
1192   metrics->origin.x=0;
1193   metrics->origin.y=0;
1194   metrics->height=(double) face->size->metrics.height/64.0;
1195   metrics->max_advance=0.0;
1196   if (face->size->metrics.max_advance > MagickEpsilon)
1197     metrics->max_advance=(double) face->size->metrics.max_advance/64.0;
1198   metrics->bounds.x1=0.0;
1199   metrics->bounds.y1=metrics->descent;
1200   metrics->bounds.x2=metrics->ascent+metrics->descent;
1201   metrics->bounds.y2=metrics->ascent+metrics->descent;
1202   metrics->underline_position=face->underline_position/64.0;
1203   metrics->underline_thickness=face->underline_thickness/64.0;
1204   if (*draw_info->text == '\0')
1205     {
1206       (void) FT_Done_Face(face);
1207       (void) FT_Done_FreeType(library);
1208       return(MagickTrue);
1209     }
1210   /*
1211     Compute bounding box.
1212   */
1213   if (image->debug != MagickFalse)
1214     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Font %s; "
1215       "font-encoding %s; text-encoding %s; pointsize %g",
1216       draw_info->font != (char *) NULL ? draw_info->font : "none",
1217       encoding != (char *) NULL ? encoding : "none",
1218       draw_info->encoding != (char *) NULL ? draw_info->encoding : "none",
1219       draw_info->pointsize);
1220   flags=FT_LOAD_NO_BITMAP;
1221   value=GetImageProperty(image,"type:hinting");
1222   if ((value != (const char *) NULL) && (LocaleCompare(value,"off") == 0))
1223     flags|=FT_LOAD_NO_HINTING;
1224   glyph.id=0;
1225   glyph.image=NULL;
1226   last_glyph.id=0;
1227   last_glyph.image=NULL;
1228   origin.x=0;
1229   origin.y=0;
1230   affine.xx=65536L;
1231   affine.yx=0L;
1232   affine.xy=0L;
1233   affine.yy=65536L;
1234   if (draw_info->render != MagickFalse)
1235     {
1236       affine.xx=(FT_Fixed) (65536L*draw_info->affine.sx+0.5);
1237       affine.yx=(FT_Fixed) (-65536L*draw_info->affine.rx+0.5);
1238       affine.xy=(FT_Fixed) (-65536L*draw_info->affine.ry+0.5);
1239       affine.yy=(FT_Fixed) (65536L*draw_info->affine.sy+0.5);
1240     }
1241   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
1242   (void) CloneString(&annotate_info->primitive,"path '");
1243   if (draw_info->render != MagickFalse)
1244     {
1245       if (image->storage_class != DirectClass)
1246         (void) SetImageStorageClass(image,DirectClass,&image->exception);
1247       if (image->matte == MagickFalse)
1248         (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,&image->exception);
1249     }
1250   direction=1.0;
1251   if (draw_info->direction == RightToLeftDirection)
1252     direction=(-1.0);
1253   point.x=0.0;
1254   point.y=0.0;
1255   for (p=draw_info->text; GetUTFCode(p) != 0; p+=GetUTFOctets(p))
1256     if (GetUTFCode(p) < 0)
1257       break;
1258   utf8=(unsigned char *) NULL;
1259   if (GetUTFCode(p) == 0)
1260     p=draw_info->text;
1261   else
1262     {
1263       utf8=ConvertLatin1ToUTF8((unsigned char *) draw_info->text);
1264       if (utf8 != (unsigned char *) NULL)
1265         p=(char *) utf8;
1266     }
1267   for (code=0; GetUTFCode(p) != 0; p+=GetUTFOctets(p))
1268   {
1269     /*
1270       Render UTF-8 sequence.
1271     */
1272     glyph.id=FT_Get_Char_Index(face,GetUTFCode(p));
1273     if (glyph.id == 0)
1274       glyph.id=FT_Get_Char_Index(face,'?');
1275     if ((glyph.id != 0) && (last_glyph.id != 0))
1276       {
1277         if (draw_info->kerning != 0.0)
1278           origin.x+=64.0*direction*draw_info->kerning;
1279         else
1280           if (FT_HAS_KERNING(face))
1281             {
1282               FT_Vector
1283                 kerning;
1284
1285               status=FT_Get_Kerning(face,last_glyph.id,glyph.id,
1286                 ft_kerning_default,&kerning);
1287               if (status == 0)
1288                 origin.x+=direction*kerning.x;
1289             }
1290         }
1291     glyph.origin=origin;
1292     status=FT_Load_Glyph(face,glyph.id,flags);
1293     if (status != 0)
1294       continue;
1295     status=FT_Get_Glyph(face->glyph,&glyph.image);
1296     if (status != 0)
1297       continue;
1298     status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->outline,
1299       &bounds);
1300     if (status != 0)
1301       continue;
1302     if ((p == draw_info->text) || (bounds.xMin < metrics->bounds.x1))
1303       metrics->bounds.x1=bounds.xMin;
1304     if ((p == draw_info->text) || (bounds.yMin < metrics->bounds.y1))
1305       metrics->bounds.y1=bounds.yMin;
1306     if ((p == draw_info->text) || (bounds.xMax > metrics->bounds.x2))
1307       metrics->bounds.x2=bounds.xMax;
1308     if ((p == draw_info->text) || (bounds.yMax > metrics->bounds.y2))
1309       metrics->bounds.y2=bounds.yMax;
1310     if (draw_info->render != MagickFalse)
1311       if ((draw_info->stroke.alpha != TransparentAlpha) ||
1312           (draw_info->stroke_pattern != (Image *) NULL))
1313         {
1314           /*
1315             Trace the glyph.
1316           */
1317           annotate_info->affine.tx=glyph.origin.x/64.0;
1318           annotate_info->affine.ty=glyph.origin.y/64.0;
1319           (void) FT_Outline_Decompose(&((FT_OutlineGlyph) glyph.image)->
1320             outline,&OutlineMethods,annotate_info);
1321         }
1322     FT_Vector_Transform(&glyph.origin,&affine);
1323     (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1324     status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1325       (FT_Vector *) NULL,MagickTrue);
1326     if (status != 0)
1327       continue;
1328     bitmap=(FT_BitmapGlyph) glyph.image;
1329     point.x=offset->x+bitmap->left;
1330     point.y=offset->y-bitmap->top;
1331     if (draw_info->render != MagickFalse)
1332       {
1333         CacheView
1334           *image_view;
1335
1336         ExceptionInfo
1337           *exception;
1338
1339         MagickBooleanType
1340           status;
1341
1342         /*
1343           Rasterize the glyph.
1344         */
1345         status=MagickTrue;
1346         exception=(&image->exception);
1347         image_view=AcquireCacheView(image);
1348         for (y=0; y < (ssize_t) bitmap->bitmap.rows; y++)
1349         {
1350           MagickBooleanType
1351             active,
1352             sync;
1353
1354           MagickRealType
1355             fill_opacity;
1356
1357           PixelPacket
1358             fill_color;
1359
1360           register Quantum
1361             *restrict q;
1362
1363           register ssize_t
1364             x;
1365
1366           register unsigned char
1367             *p;
1368
1369           ssize_t
1370             x_offset,
1371             y_offset;
1372
1373           if (status == MagickFalse)
1374             continue;
1375           x_offset=(ssize_t) ceil(point.x-0.5);
1376           y_offset=(ssize_t) ceil(point.y+y-0.5);
1377           if ((y_offset < 0) || (y_offset >= (ssize_t) image->rows))
1378             continue;
1379           q=(Quantum *) NULL;
1380           if ((x_offset < 0) || (x_offset >= (ssize_t) image->columns))
1381             active=MagickFalse;
1382           else
1383             {
1384               q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,
1385                 bitmap->bitmap.width,1,exception);
1386               active=q != (Quantum *) NULL ? MagickTrue : MagickFalse;
1387             }
1388           p=bitmap->bitmap.buffer+y*bitmap->bitmap.width;
1389           for (x=0; x < (ssize_t) bitmap->bitmap.width; x++)
1390           {
1391             x_offset++;
1392             if ((*p == 0) || (x_offset < 0) ||
1393                 (x_offset >= (ssize_t) image->columns))
1394               {
1395                 p++;
1396                 q+=GetPixelChannels(image);
1397                 continue;
1398               }
1399             fill_opacity=(MagickRealType) (*p)/(bitmap->bitmap.num_grays-1);
1400             if (draw_info->text_antialias == MagickFalse)
1401               fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0;
1402             if (active == MagickFalse)
1403               q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,1,1,
1404                 exception);
1405             if (q == (const Quantum *) NULL)
1406               {
1407                 p++;
1408                 q+=GetPixelChannels(image);
1409                 continue;
1410               }
1411             (void) GetFillColor(draw_info,x_offset,y_offset,&fill_color);
1412             fill_opacity=fill_opacity*fill_color.alpha;
1413             CompositePixelOver(image,&fill_color,fill_opacity,q,
1414               GetPixelAlpha(image,q),q);
1415             if (active == MagickFalse)
1416               {
1417                 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1418                 if (sync == MagickFalse)
1419                   status=MagickFalse;
1420               }
1421             p++;
1422             q+=GetPixelChannels(image);
1423           }
1424           sync=SyncCacheViewAuthenticPixels(image_view,exception);
1425           if (sync == MagickFalse)
1426             status=MagickFalse;
1427         }
1428         image_view=DestroyCacheView(image_view);
1429       }
1430     if ((bitmap->left+bitmap->bitmap.width) > metrics->width)
1431       metrics->width=bitmap->left+bitmap->bitmap.width;
1432     if ((draw_info->interword_spacing != 0.0) &&
1433         (IsUTFSpace(GetUTFCode(p)) != MagickFalse) &&
1434         (IsUTFSpace(code) == MagickFalse))
1435       origin.x+=64.0*direction*draw_info->interword_spacing;
1436     else
1437       origin.x+=direction*face->glyph->advance.x;
1438     metrics->origin.x=origin.x;
1439     metrics->origin.y=origin.y;
1440     if (last_glyph.id != 0)
1441       FT_Done_Glyph(last_glyph.image);
1442     last_glyph=glyph;
1443     code=GetUTFCode(p);
1444   }
1445   if (utf8 != (unsigned char *) NULL)
1446     utf8=(unsigned char *) RelinquishMagickMemory(utf8);
1447   if (last_glyph.id != 0)
1448     FT_Done_Glyph(last_glyph.image);
1449   if ((draw_info->stroke.alpha != TransparentAlpha) ||
1450       (draw_info->stroke_pattern != (Image *) NULL))
1451     {
1452       if (draw_info->render != MagickFalse)
1453         {
1454           /*
1455             Draw text stroke.
1456           */
1457           annotate_info->linejoin=RoundJoin;
1458           annotate_info->affine.tx=offset->x;
1459           annotate_info->affine.ty=offset->y;
1460           (void) ConcatenateString(&annotate_info->primitive,"'");
1461           (void) DrawImage(image,annotate_info);
1462         }
1463       }
1464   /*
1465     Determine font metrics.
1466   */
1467   glyph.id=FT_Get_Char_Index(face,'_');
1468   glyph.origin=origin;
1469   status=FT_Load_Glyph(face,glyph.id,flags);
1470   if (status == 0)
1471     {
1472       status=FT_Get_Glyph(face->glyph,&glyph.image);
1473       if (status == 0)
1474         {
1475           status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->
1476             outline,&bounds);
1477           if (status == 0)
1478             {
1479               FT_Vector_Transform(&glyph.origin,&affine);
1480               (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1481               status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1482                 (FT_Vector *) NULL,MagickTrue);
1483               bitmap=(FT_BitmapGlyph) glyph.image;
1484               if (bitmap->left > metrics->width)
1485                 metrics->width=bitmap->left;
1486             }
1487         }
1488       if (glyph.id != 0)
1489         FT_Done_Glyph(glyph.image);
1490     }
1491   metrics->width-=metrics->bounds.x1/64.0;
1492   metrics->bounds.x1/=64.0;
1493   metrics->bounds.y1/=64.0;
1494   metrics->bounds.x2/=64.0;
1495   metrics->bounds.y2/=64.0;
1496   metrics->origin.x/=64.0;
1497   metrics->origin.y/=64.0;
1498   /*
1499     Relinquish resources.
1500   */
1501   annotate_info=DestroyDrawInfo(annotate_info);
1502   (void) FT_Done_Face(face);
1503   (void) FT_Done_FreeType(library);
1504   return(MagickTrue);
1505 }
1506 #else
1507 static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
1508   const char *magick_unused(encoding),const PointInfo *offset,
1509   TypeMetric *metrics)
1510 {
1511   (void) ThrowMagickException(&image->exception,GetMagickModule(),
1512     MissingDelegateWarning,"DelegateLibrarySupportNotBuiltIn","`%s' (Freetype)",
1513     draw_info->font != (char *) NULL ? draw_info->font : "none");
1514   return(RenderPostscript(image,draw_info,offset,metrics));
1515 }
1516 #endif
1517 \f
1518 /*
1519 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1520 %                                                                             %
1521 %                                                                             %
1522 %                                                                             %
1523 +   R e n d e r P o s t s c r i p t                                           %
1524 %                                                                             %
1525 %                                                                             %
1526 %                                                                             %
1527 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1528 %
1529 %  RenderPostscript() renders text on the image with a Postscript font.  It
1530 %  also returns the bounding box of the text relative to the image.
1531 %
1532 %  The format of the RenderPostscript method is:
1533 %
1534 %      MagickBooleanType RenderPostscript(Image *image,DrawInfo *draw_info,
1535 %        const PointInfo *offset,TypeMetric *metrics)
1536 %
1537 %  A description of each parameter follows:
1538 %
1539 %    o image: the image.
1540 %
1541 %    o draw_info: the draw info.
1542 %
1543 %    o offset: (x,y) location of text relative to image.
1544 %
1545 %    o metrics: bounding box of text.
1546 %
1547 */
1548
1549 static inline size_t MagickMin(const size_t x,const size_t y)
1550 {
1551   if (x < y)
1552     return(x);
1553   return(y);
1554 }
1555
1556 static char *EscapeParenthesis(const char *text)
1557 {
1558   char
1559     *buffer;
1560
1561   register char
1562     *p;
1563
1564   register ssize_t
1565     i;
1566
1567   size_t
1568     escapes;
1569
1570   escapes=0;
1571   buffer=AcquireString(text);
1572   p=buffer;
1573   for (i=0; i < (ssize_t) MagickMin(strlen(text),MaxTextExtent-escapes-1); i++)
1574   {
1575     if ((text[i] == '(') || (text[i] == ')'))
1576       {
1577         *p++='\\';
1578         escapes++;
1579       }
1580     *p++=text[i];
1581   }
1582   *p='\0';
1583   return(buffer);
1584 }
1585
1586 static MagickBooleanType RenderPostscript(Image *image,
1587   const DrawInfo *draw_info,const PointInfo *offset,TypeMetric *metrics)
1588 {
1589   char
1590     filename[MaxTextExtent],
1591     geometry[MaxTextExtent],
1592     *text;
1593
1594   FILE
1595     *file;
1596
1597   Image
1598     *annotate_image;
1599
1600   ImageInfo
1601     *annotate_info;
1602
1603   int
1604     unique_file;
1605
1606   MagickBooleanType
1607     identity;
1608
1609   PointInfo
1610     extent,
1611     point,
1612     resolution;
1613
1614   register ssize_t
1615     i;
1616
1617   ssize_t
1618     y;
1619
1620   /*
1621     Render label with a Postscript font.
1622   */
1623   if (image->debug != MagickFalse)
1624     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),
1625       "Font %s; pointsize %g",draw_info->font != (char *) NULL ?
1626       draw_info->font : "none",draw_info->pointsize);
1627   file=(FILE *) NULL;
1628   unique_file=AcquireUniqueFileResource(filename);
1629   if (unique_file != -1)
1630     file=fdopen(unique_file,"wb");
1631   if ((unique_file == -1) || (file == (FILE *) NULL))
1632     {
1633       ThrowFileException(&image->exception,FileOpenError,"UnableToOpenFile",
1634         filename);
1635       return(MagickFalse);
1636     }
1637   (void) FormatLocaleFile(file,"%%!PS-Adobe-3.0\n");
1638   (void) FormatLocaleFile(file,"/ReencodeType\n");
1639   (void) FormatLocaleFile(file,"{\n");
1640   (void) FormatLocaleFile(file,"  findfont dup length\n");
1641   (void) FormatLocaleFile(file,
1642     "  dict begin { 1 index /FID ne {def} {pop pop} ifelse } forall\n");
1643   (void) FormatLocaleFile(file,
1644     "  /Encoding ISOLatin1Encoding def currentdict end definefont pop\n");
1645   (void) FormatLocaleFile(file,"} bind def\n");
1646   /*
1647     Sample to compute bounding box.
1648   */
1649   identity=(draw_info->affine.sx == draw_info->affine.sy) &&
1650     (draw_info->affine.rx == 0.0) && (draw_info->affine.ry == 0.0) ?
1651     MagickTrue : MagickFalse;
1652   extent.x=0.0;
1653   extent.y=0.0;
1654   for (i=0; i <= (ssize_t) (strlen(draw_info->text)+2); i++)
1655   {
1656     point.x=fabs(draw_info->affine.sx*i*draw_info->pointsize+
1657       draw_info->affine.ry*2.0*draw_info->pointsize);
1658     point.y=fabs(draw_info->affine.rx*i*draw_info->pointsize+
1659       draw_info->affine.sy*2.0*draw_info->pointsize);
1660     if (point.x > extent.x)
1661       extent.x=point.x;
1662     if (point.y > extent.y)
1663       extent.y=point.y;
1664   }
1665   (void) FormatLocaleFile(file,"%g %g moveto\n",identity  != MagickFalse ? 0.0 :
1666     extent.x/2.0,extent.y/2.0);
1667   (void) FormatLocaleFile(file,"%g %g scale\n",draw_info->pointsize,
1668     draw_info->pointsize);
1669   if ((draw_info->font == (char *) NULL) || (*draw_info->font == '\0') ||
1670       (strchr(draw_info->font,'/') != (char *) NULL))
1671     (void) FormatLocaleFile(file,
1672       "/Times-Roman-ISO dup /Times-Roman ReencodeType findfont setfont\n");
1673   else
1674     (void) FormatLocaleFile(file,
1675       "/%s-ISO dup /%s ReencodeType findfont setfont\n",draw_info->font,
1676       draw_info->font);
1677   (void) FormatLocaleFile(file,"[%g %g %g %g 0 0] concat\n",
1678     draw_info->affine.sx,-draw_info->affine.rx,-draw_info->affine.ry,
1679     draw_info->affine.sy);
1680   text=EscapeParenthesis(draw_info->text);
1681   if (identity == MagickFalse)
1682     (void) FormatLocaleFile(file,"(%s) stringwidth pop -0.5 mul -0.5 rmoveto\n",
1683       text);
1684   (void) FormatLocaleFile(file,"(%s) show\n",text);
1685   text=DestroyString(text);
1686   (void) FormatLocaleFile(file,"showpage\n");
1687   (void) fclose(file);
1688   (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g+0+0!",
1689     floor(extent.x+0.5),floor(extent.y+0.5));
1690   annotate_info=AcquireImageInfo();
1691   (void) FormatLocaleString(annotate_info->filename,MaxTextExtent,"ps:%s",
1692     filename);
1693   (void) CloneString(&annotate_info->page,geometry);
1694   if (draw_info->density != (char *) NULL)
1695     (void) CloneString(&annotate_info->density,draw_info->density);
1696   annotate_info->antialias=draw_info->text_antialias;
1697   annotate_image=ReadImage(annotate_info,&image->exception);
1698   CatchException(&image->exception);
1699   annotate_info=DestroyImageInfo(annotate_info);
1700   (void) RelinquishUniqueFileResource(filename);
1701   if (annotate_image == (Image *) NULL)
1702     return(MagickFalse);
1703   resolution.x=DefaultResolution;
1704   resolution.y=DefaultResolution;
1705   if (draw_info->density != (char *) NULL)
1706     {
1707       GeometryInfo
1708         geometry_info;
1709
1710       MagickStatusType
1711         flags;
1712
1713       flags=ParseGeometry(draw_info->density,&geometry_info);
1714       resolution.x=geometry_info.rho;
1715       resolution.y=geometry_info.sigma;
1716       if ((flags & SigmaValue) == 0)
1717         resolution.y=resolution.x;
1718     }
1719   if (identity == MagickFalse)
1720     (void) TransformImage(&annotate_image,"0x0",(char *) NULL);
1721   else
1722     {
1723       RectangleInfo
1724         crop_info;
1725
1726       crop_info=GetImageBoundingBox(annotate_image,&annotate_image->exception);
1727       crop_info.height=(size_t) ((resolution.y/DefaultResolution)*
1728         ExpandAffine(&draw_info->affine)*draw_info->pointsize+0.5);
1729       crop_info.y=(ssize_t) ceil((resolution.y/DefaultResolution)*extent.y/8.0-
1730         0.5);
1731       (void) FormatLocaleString(geometry,MaxTextExtent,
1732         "%.20gx%.20g%+.20g%+.20g",(double) crop_info.width,(double)
1733         crop_info.height,(double) crop_info.x,(double) crop_info.y);
1734       (void) TransformImage(&annotate_image,geometry,(char *) NULL);
1735     }
1736   metrics->pixels_per_em.x=(resolution.y/DefaultResolution)*
1737     ExpandAffine(&draw_info->affine)*draw_info->pointsize;
1738   metrics->pixels_per_em.y=metrics->pixels_per_em.x;
1739   metrics->ascent=metrics->pixels_per_em.x;
1740   metrics->descent=metrics->pixels_per_em.y/-5.0;
1741   metrics->width=(double) annotate_image->columns/
1742     ExpandAffine(&draw_info->affine);
1743   metrics->height=1.152*metrics->pixels_per_em.x;
1744   metrics->max_advance=metrics->pixels_per_em.x;
1745   metrics->bounds.x1=0.0;
1746   metrics->bounds.y1=metrics->descent;
1747   metrics->bounds.x2=metrics->ascent+metrics->descent;
1748   metrics->bounds.y2=metrics->ascent+metrics->descent;
1749   metrics->underline_position=(-2.0);
1750   metrics->underline_thickness=1.0;
1751   if (draw_info->render == MagickFalse)
1752     {
1753       annotate_image=DestroyImage(annotate_image);
1754       return(MagickTrue);
1755     }
1756   if (draw_info->fill.alpha != TransparentAlpha)
1757     {
1758       ExceptionInfo
1759         *exception;
1760
1761       MagickBooleanType
1762         sync;
1763
1764       PixelPacket
1765         fill_color;
1766
1767       CacheView
1768         *annotate_view;
1769
1770       /*
1771         Render fill color.
1772       */
1773       exception=(&image->exception);
1774       if (image->matte == MagickFalse)
1775         (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
1776       if (annotate_image->matte == MagickFalse)
1777         (void) SetImageAlphaChannel(annotate_image,OpaqueAlphaChannel,
1778           exception);
1779       fill_color=draw_info->fill;
1780       annotate_view=AcquireCacheView(annotate_image);
1781       for (y=0; y < (ssize_t) annotate_image->rows; y++)
1782       {
1783         register ssize_t
1784           x;
1785
1786         register Quantum
1787           *restrict q;
1788
1789         q=GetCacheViewAuthenticPixels(annotate_view,0,y,annotate_image->columns,
1790           1,exception);
1791         if (q == (const Quantum *) NULL)
1792           break;
1793         for (x=0; x < (ssize_t) annotate_image->columns; x++)
1794         {
1795           (void) GetFillColor(draw_info,x,y,&fill_color);
1796           SetPixelAlpha(annotate_image,ClampToQuantum((((MagickRealType)
1797             GetPixelIntensity(annotate_image,q)*fill_color.alpha)/
1798             QuantumRange)),q);
1799           SetPixelRed(annotate_image,fill_color.red,q);
1800           SetPixelGreen(annotate_image,fill_color.green,q);
1801           SetPixelBlue(annotate_image,fill_color.blue,q);
1802           q+=GetPixelChannels(annotate_image);
1803         }
1804         sync=SyncCacheViewAuthenticPixels(annotate_view,exception);
1805         if (sync == MagickFalse)
1806           break;
1807       }
1808       annotate_view=DestroyCacheView(annotate_view);
1809       (void) CompositeImage(image,OverCompositeOp,annotate_image,
1810         (ssize_t) ceil(offset->x-0.5),(ssize_t) ceil(offset->y-(metrics->ascent+
1811         metrics->descent)-0.5));
1812     }
1813   annotate_image=DestroyImage(annotate_image);
1814   return(MagickTrue);
1815 }
1816 \f
1817 /*
1818 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1819 %                                                                             %
1820 %                                                                             %
1821 %                                                                             %
1822 +   R e n d e r X 1 1                                                         %
1823 %                                                                             %
1824 %                                                                             %
1825 %                                                                             %
1826 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1827 %
1828 %  RenderX11() renders text on the image with an X11 font.  It also returns the
1829 %  bounding box of the text relative to the image.
1830 %
1831 %  The format of the RenderX11 method is:
1832 %
1833 %      MagickBooleanType RenderX11(Image *image,DrawInfo *draw_info,
1834 %        const PointInfo *offset,TypeMetric *metrics)
1835 %
1836 %  A description of each parameter follows:
1837 %
1838 %    o image: the image.
1839 %
1840 %    o draw_info: the draw info.
1841 %
1842 %    o offset: (x,y) location of text relative to image.
1843 %
1844 %    o metrics: bounding box of text.
1845 %
1846 */
1847 #if defined(MAGICKCORE_X11_DELEGATE)
1848 static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info,
1849   const PointInfo *offset,TypeMetric *metrics)
1850 {
1851   MagickBooleanType
1852     status;
1853
1854   static DrawInfo
1855     cache_info;
1856
1857   static Display
1858     *display = (Display *) NULL;
1859
1860   static XAnnotateInfo
1861     annotate_info;
1862
1863   static XFontStruct
1864     *font_info;
1865
1866   static XPixelInfo
1867     pixel;
1868
1869   static XResourceInfo
1870     resource_info;
1871
1872   static XrmDatabase
1873     resource_database;
1874
1875   static XStandardColormap
1876     *map_info;
1877
1878   static XVisualInfo
1879     *visual_info;
1880
1881   size_t
1882     height,
1883     width;
1884
1885   if (annotate_semaphore == (SemaphoreInfo *) NULL)
1886     AcquireSemaphoreInfo(&annotate_semaphore);
1887   LockSemaphoreInfo(annotate_semaphore);
1888   if (display == (Display *) NULL)
1889     {
1890       const char
1891         *client_name;
1892
1893       ImageInfo
1894         *image_info;
1895
1896       /*
1897         Open X server connection.
1898       */
1899       display=XOpenDisplay(draw_info->server_name);
1900       if (display == (Display *) NULL)
1901         {
1902           ThrowXWindowException(XServerError,"UnableToOpenXServer",
1903             draw_info->server_name);
1904           return(MagickFalse);
1905         }
1906       /*
1907         Get user defaults from X resource database.
1908       */
1909       (void) XSetErrorHandler(XError);
1910       image_info=AcquireImageInfo();
1911       client_name=GetClientName();
1912       resource_database=XGetResourceDatabase(display,client_name);
1913       XGetResourceInfo(image_info,resource_database,client_name,&resource_info);
1914       resource_info.close_server=MagickFalse;
1915       resource_info.colormap=PrivateColormap;
1916       resource_info.font=AcquireString(draw_info->font);
1917       resource_info.background_color=AcquireString("#ffffffffffff");
1918       resource_info.foreground_color=AcquireString("#000000000000");
1919       map_info=XAllocStandardColormap();
1920       if (map_info == (XStandardColormap *) NULL)
1921         {
1922           ThrowXWindowException(ResourceLimitError,"MemoryAllocationFailed",
1923             image->filename);
1924           return(MagickFalse);
1925         }
1926       /*
1927         Initialize visual info.
1928       */
1929       visual_info=XBestVisualInfo(display,map_info,&resource_info);
1930       if (visual_info == (XVisualInfo *) NULL)
1931         {
1932           ThrowXWindowException(XServerError,"UnableToGetVisual",
1933             image->filename);
1934           return(MagickFalse);
1935         }
1936       map_info->colormap=(Colormap) NULL;
1937       pixel.pixels=(unsigned long *) NULL;
1938       /*
1939         Initialize Standard Colormap info.
1940       */
1941       XGetMapInfo(visual_info,XDefaultColormap(display,visual_info->screen),
1942         map_info);
1943       XGetPixelInfo(display,visual_info,map_info,&resource_info,(Image *) NULL,
1944         &pixel);
1945       pixel.annotate_context=XDefaultGC(display,visual_info->screen);
1946       /*
1947         Initialize font info.
1948       */
1949       font_info=XBestFont(display,&resource_info,MagickFalse);
1950       if (font_info == (XFontStruct *) NULL)
1951         {
1952           ThrowXWindowException(XServerError,"UnableToLoadFont",
1953             draw_info->font);
1954           return(MagickFalse);
1955         }
1956       if ((map_info == (XStandardColormap *) NULL) ||
1957           (visual_info == (XVisualInfo *) NULL) ||
1958           (font_info == (XFontStruct *) NULL))
1959         {
1960           XFreeResources(display,visual_info,map_info,&pixel,font_info,
1961             &resource_info,(XWindowInfo *) NULL);
1962           ThrowXWindowException(XServerError,"UnableToLoadFont",
1963             image->filename);
1964           return(MagickFalse);
1965         }
1966       cache_info=(*draw_info);
1967     }
1968   UnlockSemaphoreInfo(annotate_semaphore);
1969   /*
1970     Initialize annotate info.
1971   */
1972   XGetAnnotateInfo(&annotate_info);
1973   annotate_info.stencil=ForegroundStencil;
1974   if (cache_info.font != draw_info->font)
1975     {
1976       /*
1977         Type name has changed.
1978       */
1979       (void) XFreeFont(display,font_info);
1980       (void) CloneString(&resource_info.font,draw_info->font);
1981       font_info=XBestFont(display,&resource_info,MagickFalse);
1982       if (font_info == (XFontStruct *) NULL)
1983         {
1984           ThrowXWindowException(XServerError,"UnableToLoadFont",
1985             draw_info->font);
1986           return(MagickFalse);
1987         }
1988     }
1989   if (image->debug != MagickFalse)
1990     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),
1991       "Font %s; pointsize %g",draw_info->font != (char *) NULL ?
1992       draw_info->font : "none",draw_info->pointsize);
1993   cache_info=(*draw_info);
1994   annotate_info.font_info=font_info;
1995   annotate_info.text=(char *) draw_info->text;
1996   annotate_info.width=(unsigned int) XTextWidth(font_info,draw_info->text,
1997     (int) strlen(draw_info->text));
1998   annotate_info.height=(unsigned int) font_info->ascent+font_info->descent;
1999   metrics->pixels_per_em.x=(double) font_info->max_bounds.width;
2000   metrics->pixels_per_em.y=(double) font_info->ascent+font_info->descent;
2001   metrics->ascent=(double) font_info->ascent+4;
2002   metrics->descent=(double) (-font_info->descent);
2003   metrics->width=annotate_info.width/ExpandAffine(&draw_info->affine);
2004   metrics->height=font_info->ascent+font_info->descent;
2005   metrics->max_advance=(double) font_info->max_bounds.width;
2006   metrics->bounds.x1=0.0;
2007   metrics->bounds.y1=metrics->descent;
2008   metrics->bounds.x2=metrics->ascent+metrics->descent;
2009   metrics->bounds.y2=metrics->ascent+metrics->descent;
2010   metrics->underline_position=(-2.0);
2011   metrics->underline_thickness=1.0;
2012   if (draw_info->render == MagickFalse)
2013     return(MagickTrue);
2014   if (draw_info->fill.alpha == TransparentAlpha)
2015     return(MagickTrue);
2016   /*
2017     Render fill color.
2018   */
2019   width=annotate_info.width;
2020   height=annotate_info.height;
2021   if ((draw_info->affine.rx != 0.0) || (draw_info->affine.ry != 0.0))
2022     {
2023       if (((draw_info->affine.sx-draw_info->affine.sy) == 0.0) &&
2024           ((draw_info->affine.rx+draw_info->affine.ry) == 0.0))
2025         annotate_info.degrees=(180.0/MagickPI)*
2026           atan2(draw_info->affine.rx,draw_info->affine.sx);
2027     }
2028   (void) FormatLocaleString(annotate_info.geometry,MaxTextExtent,
2029     "%.20gx%.20g%+.20g%+.20g",(double) width,(double) height,
2030     ceil(offset->x-0.5),ceil(offset->y-metrics->ascent-metrics->descent+
2031     draw_info->interline_spacing-0.5));
2032   pixel.pen_color.red=ScaleQuantumToShort(draw_info->fill.red);
2033   pixel.pen_color.green=ScaleQuantumToShort(draw_info->fill.green);
2034   pixel.pen_color.blue=ScaleQuantumToShort(draw_info->fill.blue);
2035   status=XAnnotateImage(display,&pixel,&annotate_info,image);
2036   if (status == 0)
2037     {
2038       ThrowXWindowException(ResourceLimitError,"MemoryAllocationFailed",
2039         image->filename);
2040       return(MagickFalse);
2041     }
2042   return(MagickTrue);
2043 }
2044 #else
2045 static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info,
2046   const PointInfo *offset,TypeMetric *metrics)
2047 {
2048   (void) draw_info;
2049   (void) offset;
2050   (void) metrics;
2051   (void) ThrowMagickException(&image->exception,GetMagickModule(),
2052     MissingDelegateError,"DelegateLibrarySupportNotBuiltIn","`%s' (X11)",
2053     image->filename);
2054   return(MagickFalse);
2055 }
2056 #endif