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 %                                   Cristy                                    %
  17 %                                 July 1992                                   %
  18 %                                                                             %
  19 %                                                                             %
  20 %  Copyright 1999-2014 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/annotate-private.h"
  48 #include "MagickCore/attribute.h"
  49 #include "MagickCore/cache-view.h"
  50 #include "MagickCore/channel.h"
  51 #include "MagickCore/client.h"
  52 #include "MagickCore/color.h"
  53 #include "MagickCore/color-private.h"
  54 #include "MagickCore/colorspace-private.h"
  55 #include "MagickCore/composite.h"
  56 #include "MagickCore/composite-private.h"
  57 #include "MagickCore/constitute.h"
  58 #include "MagickCore/draw.h"
  59 #include "MagickCore/draw-private.h"
  60 #include "MagickCore/enhance.h"
  61 #include "MagickCore/exception.h"
  62 #include "MagickCore/exception-private.h"
  63 #include "MagickCore/gem.h"
  64 #include "MagickCore/geometry.h"
  65 #include "MagickCore/image-private.h"
  66 #include "MagickCore/log.h"
  67 #include "MagickCore/quantum.h"
  68 #include "MagickCore/quantum-private.h"
  69 #include "MagickCore/pixel-accessor.h"
  70 #include "MagickCore/property.h"
  71 #include "MagickCore/resource_.h"
  72 #include "MagickCore/semaphore.h"
  73 #include "MagickCore/statistic.h"
  74 #include "MagickCore/string_.h"
  75 #include "MagickCore/token-private.h"
  76 #include "MagickCore/transform.h"
  77 #include "MagickCore/type.h"
  78 #include "MagickCore/utility.h"
  79 #include "MagickCore/utility-private.h"
  80 #include "MagickCore/xwindow.h"
  81 #include "MagickCore/xwindow-private.h"
  82 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
  83 #if defined(__MINGW32__) || defined(__MINGW64__)
  84 #  undef interface
  85 #endif
  86 #include <ft2build.h>
  87 #if defined(FT_FREETYPE_H)
  88 #  include FT_FREETYPE_H
  89 #else
  90 #  include <freetype/freetype.h>
  91 #endif
  92 #if defined(FT_GLYPH_H)
  93 #  include FT_GLYPH_H
  94 #else
  95 #  include <freetype/ftglyph.h>
  96 #endif
  97 #if defined(FT_OUTLINE_H)
  98 #  include FT_OUTLINE_H
  99 #else
 100 #  include <freetype/ftoutln.h>
 101 #endif
 102 #if defined(FT_BBOX_H)
 103 #  include FT_BBOX_H
 104 #else
 105 #  include <freetype/ftbbox.h>
 106 #endif /* defined(FT_BBOX_H) */
 107 #endif
 108 \f
 109 /*
 110   Annotate semaphores.
 111 */
 112 static SemaphoreInfo
 113   *annotate_semaphore = (SemaphoreInfo *) NULL;
 114 \f
 115 /*
 116   Forward declarations.
 117 */
 118 static MagickBooleanType
 119   RenderType(Image *,const DrawInfo *,const PointInfo *,TypeMetric *,
 120     ExceptionInfo *),
 121   RenderPostscript(Image *,const DrawInfo *,const PointInfo *,TypeMetric *,
 122     ExceptionInfo *),
 123   RenderFreetype(Image *,const DrawInfo *,const char *,const PointInfo *,
 124     TypeMetric *,ExceptionInfo *),
 125   RenderX11(Image *,const DrawInfo *,const PointInfo *,TypeMetric *,
 126     ExceptionInfo *);
 127 \f
 128 /*
 129 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 130 %                                                                             %
 131 %                                                                             %
 132 %                                                                             %
 133 +   A n n o t a t e C o m p o n e n t G e n e s i s                           %
 134 %                                                                             %
 135 %                                                                             %
 136 %                                                                             %
 137 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 138 %
 139 %  AnnotateComponentGenesis() instantiates the annotate component.
 140 %
 141 %  The format of the AnnotateComponentGenesis method is:
 142 %
 143 %      MagickBooleanType AnnotateComponentGenesis(void)
 144 %
 145 */
 146 MagickPrivate MagickBooleanType AnnotateComponentGenesis(void)
 147 {
 148   if (annotate_semaphore == (SemaphoreInfo *) NULL)
 149     annotate_semaphore=AcquireSemaphoreInfo();
 150   return(MagickTrue);
 151 }
 152 \f
 153 /*
 154 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 155 %                                                                             %
 156 %                                                                             %
 157 %                                                                             %
 158 +   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                         %
 159 %                                                                             %
 160 %                                                                             %
 161 %                                                                             %
 162 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 163 %
 164 %  AnnotateComponentTerminus() destroys the annotate component.
 165 %
 166 %  The format of the AnnotateComponentTerminus method is:
 167 %
 168 %      AnnotateComponentTerminus(void)
 169 %
 170 */
 171 MagickPrivate void AnnotateComponentTerminus(void)
 172 {
 173   if (annotate_semaphore == (SemaphoreInfo *) NULL)
 174     ActivateSemaphoreInfo(&annotate_semaphore);
 175   RelinquishSemaphoreInfo(&annotate_semaphore);
 176 }
 177 \f
 178 /*
 179 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 180 %                                                                             %
 181 %                                                                             %
 182 %                                                                             %
 183 %   A n n o t a t e I m a g e                                                 %
 184 %                                                                             %
 185 %                                                                             %
 186 %                                                                             %
 187 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 188 %
 189 %  AnnotateImage() annotates an image with text.  Optionally you can include
 190 %  any of the following bits of information about the image by embedding
 191 %  the appropriate special characters:
 192 %
 193 %    %b   file size in bytes.
 194 %    %c   comment.
 195 %    %d   directory in which the image resides.
 196 %    %e   extension of the image file.
 197 %    %f   original filename of the image.
 198 %    %h   height of image.
 199 %    %i   filename of the image.
 200 %    %k   number of unique colors.
 201 %    %l   image label.
 202 %    %m   image file format.
 203 %    %n   number of images in a image sequence.
 204 %    %o   output image filename.
 205 %    %p   page number of the image.
 206 %    %q   image depth (8 or 16).
 207 %    %q   image depth (8 or 16).
 208 %    %s   image scene number.
 209 %    %t   image filename without any extension.
 210 %    %u   a unique temporary filename.
 211 %    %w   image width.
 212 %    %x   x resolution of the image.
 213 %    %y   y resolution of the image.
 214 %
 215 %  The format of the AnnotateImage method is:
 216 %
 217 %      MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info,
 218 %        ExceptionInfo *exception)
 219 %
 220 %  A description of each parameter follows:
 221 %
 222 %    o image: the image.
 223 %
 224 %    o draw_info: the draw info.
 225 %
 226 %    o exception: return any errors or warnings in this structure.
 227 %
 228 */
 229 MagickExport MagickBooleanType AnnotateImage(Image *image,
 230   const DrawInfo *draw_info,ExceptionInfo *exception)
 231 {
 232   char
 233     primitive[MaxTextExtent],
 234     **textlist;
 235
 236   DrawInfo
 237     *annotate,
 238     *annotate_info;
 239
 240   GeometryInfo
 241     geometry_info;
 242
 243   MagickBooleanType
 244     status;
 245
 246   PointInfo
 247     offset;
 248
 249   RectangleInfo
 250     geometry;
 251
 252   register ssize_t
 253     i;
 254
 255   size_t
 256     length;
 257
 258   TypeMetric
 259     metrics;
 260
 261   size_t
 262     height,
 263     number_lines;
 264
 265   assert(image != (Image *) NULL);
 266   assert(image->signature == MagickSignature);
 267   if (image->debug != MagickFalse)
 268     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 269   assert(draw_info != (DrawInfo *) NULL);
 270   assert(draw_info->signature == MagickSignature);
 271   if (draw_info->text == (char *) NULL)
 272     return(MagickFalse);
 273   if (*draw_info->text == '\0')
 274     return(MagickTrue);
 275   textlist=StringToList(draw_info->text);
 276   if (textlist == (char **) NULL)
 277     return(MagickFalse);
 278   length=strlen(textlist[0]);
 279   for (i=1; textlist[i] != (char *) NULL; i++)
 280     if (strlen(textlist[i]) > length)
 281       length=strlen(textlist[i]);
 282   number_lines=(size_t) i;
 283   annotate=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 284   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 285   SetGeometry(image,&geometry);
 286   SetGeometryInfo(&geometry_info);
 287   if (annotate_info->geometry != (char *) NULL)
 288     {
 289       (void) ParsePageGeometry(image,annotate_info->geometry,&geometry,
 290         exception);
 291       (void) ParseGeometry(annotate_info->geometry,&geometry_info);
 292     }
 293   if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse)
 294     return(MagickFalse);
 295   if (IsGrayColorspace(image->colorspace) != MagickFalse)
 296     (void) SetImageColorspace(image,sRGBColorspace,exception);
 297   status=MagickTrue;
 298   for (i=0; textlist[i] != (char *) NULL; i++)
 299   {
 300     /*
 301       Position text relative to image.
 302     */
 303     annotate_info->affine.tx=geometry_info.xi-image->page.x;
 304     annotate_info->affine.ty=geometry_info.psi-image->page.y;
 305     (void) CloneString(&annotate->text,textlist[i]);
 306     (void) GetTypeMetrics(image,annotate,&metrics,exception);
 307     height=(ssize_t) (metrics.ascent-metrics.descent+
 308       draw_info->interline_spacing+0.5);
 309     switch (annotate->gravity)
 310     {
 311       case UndefinedGravity:
 312       default:
 313       {
 314         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
 315         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
 316         break;
 317       }
 318       case NorthWestGravity:
 319       {
 320         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 321           annotate_info->affine.ry*height+annotate_info->affine.ry*
 322           (metrics.ascent+metrics.descent);
 323         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 324           annotate_info->affine.sy*height+annotate_info->affine.sy*
 325           metrics.ascent;
 326         break;
 327       }
 328       case NorthGravity:
 329       {
 330         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 331           geometry.width/2.0+i*annotate_info->affine.ry*height-
 332           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
 333           annotate_info->affine.ry*(metrics.ascent+metrics.descent);
 334         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 335           annotate_info->affine.sy*height+annotate_info->affine.sy*
 336           metrics.ascent-annotate_info->affine.rx*(metrics.width-
 337           metrics.bounds.x1)/2.0;
 338         break;
 339       }
 340       case NorthEastGravity:
 341       {
 342         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 343           geometry.width+i*annotate_info->affine.ry*height-
 344           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
 345           annotate_info->affine.ry*(metrics.ascent+metrics.descent)-1.0;
 346         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i*
 347           annotate_info->affine.sy*height+annotate_info->affine.sy*
 348           metrics.ascent-annotate_info->affine.rx*(metrics.width-
 349           metrics.bounds.x1);
 350         break;
 351       }
 352       case WestGravity:
 353       {
 354         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 355           annotate_info->affine.ry*height+annotate_info->affine.ry*
 356           (metrics.ascent+metrics.descent-(number_lines-1.0)*height)/2.0;
 357         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 358           geometry.height/2.0+i*annotate_info->affine.sy*height+
 359           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 360           (number_lines-1.0)*height)/2.0;
 361         break;
 362       }
 363       case CenterGravity:
 364       {
 365         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 366           geometry.width/2.0+i*annotate_info->affine.ry*height-
 367           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+
 368           annotate_info->affine.ry*(metrics.ascent+metrics.descent-
 369           (number_lines-1)*height)/2.0;
 370         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 371           geometry.height/2.0+i*annotate_info->affine.sy*height-
 372           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0+
 373           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 374           (number_lines-1.0)*height)/2.0;
 375         break;
 376       }
 377       case EastGravity:
 378       {
 379         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 380           geometry.width+i*annotate_info->affine.ry*height-
 381           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+
 382           annotate_info->affine.ry*(metrics.ascent+metrics.descent-
 383           (number_lines-1.0)*height)/2.0-1.0;
 384         offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+
 385           geometry.height/2.0+i*annotate_info->affine.sy*height-
 386           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)+
 387           annotate_info->affine.sy*(metrics.ascent+metrics.descent-
 388           (number_lines-1.0)*height)/2.0;
 389         break;
 390       }
 391       case SouthWestGravity:
 392       {
 393         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i*
 394           annotate_info->affine.ry*height-annotate_info->affine.ry*
 395           (number_lines-1.0)*height;
 396         offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
 397           geometry.height+i*annotate_info->affine.sy*height-
 398           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 399         break;
 400       }
 401       case SouthGravity:
 402       {
 403         offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+
 404           geometry.width/2.0+i*annotate_info->affine.ry*height-
 405           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0-
 406           annotate_info->affine.ry*(number_lines-1.0)*height/2.0;
 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)/2.0-
 410           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 411         break;
 412       }
 413       case SouthEastGravity:
 414       {
 415         offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+
 416           geometry.width+i*annotate_info->affine.ry*height-
 417           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)-
 418           annotate_info->affine.ry*(number_lines-1.0)*height-1.0;
 419         offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+
 420           geometry.height+i*annotate_info->affine.sy*height-
 421           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)-
 422           annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent;
 423         break;
 424       }
 425     }
 426     switch (annotate->align)
 427     {
 428       case LeftAlign:
 429       {
 430         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height;
 431         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height;
 432         break;
 433       }
 434       case CenterAlign:
 435       {
 436         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
 437           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0;
 438         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
 439           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0;
 440         break;
 441       }
 442       case RightAlign:
 443       {
 444         offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height-
 445           annotate_info->affine.sx*(metrics.width+metrics.bounds.x1);
 446         offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height-
 447           annotate_info->affine.rx*(metrics.width+metrics.bounds.x1);
 448         break;
 449       }
 450       default:
 451         break;
 452     }
 453     if (draw_info->undercolor.alpha != TransparentAlpha)
 454       {
 455         DrawInfo
 456           *undercolor_info;
 457
 458         /*
 459           Text box.
 460         */
 461         undercolor_info=CloneDrawInfo((ImageInfo *) NULL,(DrawInfo *) NULL);
 462         undercolor_info->fill=draw_info->undercolor;
 463         undercolor_info->affine=draw_info->affine;
 464         undercolor_info->affine.tx=offset.x-draw_info->affine.ry*metrics.ascent;
 465         undercolor_info->affine.ty=offset.y-draw_info->affine.sy*metrics.ascent;
 466         (void) FormatLocaleString(primitive,MaxTextExtent,
 467           "rectangle -0.5,-0.5 %g,%.20g",metrics.origin.x,(double) height);
 468         (void) CloneString(&undercolor_info->primitive,primitive);
 469         (void) DrawImage(image,undercolor_info,exception);
 470         (void) DestroyDrawInfo(undercolor_info);
 471       }
 472     annotate_info->affine.tx=offset.x;
 473     annotate_info->affine.ty=offset.y;
 474     (void) FormatLocaleString(primitive,MaxTextExtent,"stroke-width %g "
 475       "line 0,0 %g,0",metrics.underline_thickness,metrics.width);
 476     if (annotate->decorate == OverlineDecoration)
 477       {
 478         annotate_info->affine.ty-=(draw_info->affine.sy*(metrics.ascent+
 479           metrics.descent-metrics.underline_position));
 480         (void) CloneString(&annotate_info->primitive,primitive);
 481         (void) DrawImage(image,annotate_info,exception);
 482       }
 483     else
 484       if (annotate->decorate == UnderlineDecoration)
 485         {
 486           annotate_info->affine.ty-=(draw_info->affine.sy*
 487             metrics.underline_position);
 488           (void) CloneString(&annotate_info->primitive,primitive);
 489           (void) DrawImage(image,annotate_info,exception);
 490         }
 491     /*
 492       Annotate image with text.
 493     */
 494     status=RenderType(image,annotate,&offset,&metrics,exception);
 495     if (status == MagickFalse)
 496       break;
 497     if (annotate->decorate == LineThroughDecoration)
 498       {
 499         annotate_info->affine.ty-=(draw_info->affine.sy*(height+
 500           metrics.underline_position+metrics.descent)/2.0);
 501         (void) CloneString(&annotate_info->primitive,primitive);
 502         (void) DrawImage(image,annotate_info,exception);
 503       }
 504   }
 505   /*
 506     Relinquish resources.
 507   */
 508   annotate_info=DestroyDrawInfo(annotate_info);
 509   annotate=DestroyDrawInfo(annotate);
 510   for (i=0; textlist[i] != (char *) NULL; i++)
 511     textlist[i]=DestroyString(textlist[i]);
 512   textlist=(char **) RelinquishMagickMemory(textlist);
 513   return(status);
 514 }
 515 \f
 516 /*
 517 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 518 %                                                                             %
 519 %                                                                             %
 520 %                                                                             %
 521 %  F o r m a t M a g i c k C a p t i o n                                      %
 522 %                                                                             %
 523 %                                                                             %
 524 %                                                                             %
 525 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 526 %
 527 %  FormatMagickCaption() formats a caption so that it fits within the image
 528 %  width.  It returns the number of lines in the formatted caption.
 529 %
 530 %  The format of the FormatMagickCaption method is:
 531 %
 532 %      ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
 533 %        const MagickBooleanType split,TypeMetric *metrics,char **caption,
 534 %        ExceptionInfo *exception)
 535 %
 536 %  A description of each parameter follows.
 537 %
 538 %    o image:  The image.
 539 %
 540 %    o draw_info: the draw info.
 541 %
 542 %    o split: when no convenient line breaks-- insert newline.
 543 %
 544 %    o metrics: Return the font metrics in this structure.
 545 %
 546 %    o caption: the caption.
 547 %
 548 %    o exception: return any errors or warnings in this structure.
 549 %
 550 */
 551 MagickExport ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info,
 552   const MagickBooleanType split,TypeMetric *metrics,char **caption,
 553   ExceptionInfo *exception)
 554 {
 555   char
 556     *text;
 557
 558   MagickBooleanType
 559     status;
 560
 561   register char
 562     *p,
 563     *q,
 564     *s;
 565
 566   register ssize_t
 567     i;
 568
 569   size_t
 570     width;
 571
 572   ssize_t
 573     n;
 574
 575   text=AcquireString(draw_info->text);
 576   q=draw_info->text;
 577   s=(char *) NULL;
 578   for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
 579   {
 580     if (IsUTFSpace(GetUTFCode(p)) != MagickFalse)
 581       s=p;
 582     if (GetUTFCode(p) == '\n')
 583       q=draw_info->text;
 584     for (i=0; i < (ssize_t) GetUTFOctets(p); i++)
 585       *q++=(*(p+i));
 586     *q='\0';
 587     status=GetTypeMetrics(image,draw_info,metrics,exception);
 588     if (status == MagickFalse)
 589       break;
 590     width=(size_t) floor(metrics->width+draw_info->stroke_width+0.5);
 591     if ((width <= image->columns) || (strcmp(text,draw_info->text) == 0))
 592       continue;
 593     (void) strcpy(text,draw_info->text);
 594     if ((s != (char *) NULL) && (GetUTFOctets(s) == 1))
 595       {
 596         *s='\n';
 597         p=s;
 598       }
 599     else
 600       if ((s != (char *) NULL) || (split != MagickFalse))
 601         {
 602           char
 603             *target;
 604
 605           /*
 606             No convenient line breaks-- insert newline.
 607           */
 608           target=AcquireString(*caption);
 609           n=p-(*caption);
 610           CopyMagickString(target,*caption,n+1);
 611           ConcatenateMagickString(target,"\n",strlen(*caption)+1);
 612           ConcatenateMagickString(target,p,strlen(*caption)+2);
 613           (void) DestroyString(*caption);
 614           *caption=target;
 615           p=(*caption)+n;
 616         }
 617     q=draw_info->text;
 618     s=(char *) NULL;
 619   }
 620   text=DestroyString(text);
 621   n=0;
 622   for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p))
 623     if (GetUTFCode(p) == '\n')
 624       n++;
 625   return(n);
 626 }
 627 \f
 628 /*
 629 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 630 %                                                                             %
 631 %                                                                             %
 632 %                                                                             %
 633 %   G e t M u l t i l i n e T y p e M e t r i c s                             %
 634 %                                                                             %
 635 %                                                                             %
 636 %                                                                             %
 637 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 638 %
 639 %  GetMultilineTypeMetrics() returns the following information for the
 640 %  specified font and text:
 641 %
 642 %    character width
 643 %    character height
 644 %    ascender
 645 %    descender
 646 %    text width
 647 %    text height
 648 %    maximum horizontal advance
 649 %    bounds: x1
 650 %    bounds: y1
 651 %    bounds: x2
 652 %    bounds: y2
 653 %    origin: x
 654 %    origin: y
 655 %    underline position
 656 %    underline thickness
 657 %
 658 %  This method is like GetTypeMetrics() but it returns the maximum text width
 659 %  and height for multiple lines of text.
 660 %
 661 %  The format of the GetMultilineTypeMetrics method is:
 662 %
 663 %      MagickBooleanType GetMultilineTypeMetrics(Image *image,
 664 %        const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception)
 665 %
 666 %  A description of each parameter follows:
 667 %
 668 %    o image: the image.
 669 %
 670 %    o draw_info: the draw info.
 671 %
 672 %    o metrics: Return the font metrics in this structure.
 673 %
 674 %    o exception: return any errors or warnings in this structure.
 675 %
 676 */
 677 MagickExport MagickBooleanType GetMultilineTypeMetrics(Image *image,
 678   const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception)
 679 {
 680   char
 681     **textlist;
 682
 683   DrawInfo
 684     *annotate_info;
 685
 686   MagickBooleanType
 687     status;
 688
 689   register ssize_t
 690     i;
 691
 692   TypeMetric
 693     extent;
 694
 695   assert(image != (Image *) NULL);
 696   assert(image->signature == MagickSignature);
 697   if (image->debug != MagickFalse)
 698     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 699   assert(draw_info != (DrawInfo *) NULL);
 700   assert(draw_info->text != (char *) NULL);
 701   assert(draw_info->signature == MagickSignature);
 702   if (*draw_info->text == '\0')
 703     return(MagickFalse);
 704   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 705   annotate_info->text=DestroyString(annotate_info->text);
 706   /*
 707     Convert newlines to multiple lines of text.
 708   */
 709   textlist=StringToList(draw_info->text);
 710   if (textlist == (char **) NULL)
 711     return(MagickFalse);
 712   annotate_info->render=MagickFalse;
 713   annotate_info->direction=UndefinedDirection;
 714   (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
 715   (void) ResetMagickMemory(&extent,0,sizeof(extent));
 716   /*
 717     Find the widest of the text lines.
 718   */
 719   annotate_info->text=textlist[0];
 720   status=GetTypeMetrics(image,annotate_info,&extent,exception);
 721   *metrics=extent;
 722   for (i=1; textlist[i] != (char *) NULL; i++)
 723   {
 724     annotate_info->text=textlist[i];
 725     status=GetTypeMetrics(image,annotate_info,&extent,exception);
 726     if (extent.width > metrics->width)
 727       *metrics=extent;
 728   }
 729   metrics->height=(double) (i*(size_t) (metrics->ascent-metrics->descent+0.5)+
 730     (i-1)*draw_info->interline_spacing);
 731   /*
 732     Relinquish resources.
 733   */
 734   annotate_info->text=(char *) NULL;
 735   annotate_info=DestroyDrawInfo(annotate_info);
 736   for (i=0; textlist[i] != (char *) NULL; i++)
 737     textlist[i]=DestroyString(textlist[i]);
 738   textlist=(char **) RelinquishMagickMemory(textlist);
 739   return(status);
 740 }
 741 \f
 742 /*
 743 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 744 %                                                                             %
 745 %                                                                             %
 746 %                                                                             %
 747 %   G e t T y p e M e t r i c s                                               %
 748 %                                                                             %
 749 %                                                                             %
 750 %                                                                             %
 751 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 752 %
 753 %  GetTypeMetrics() returns the following information for the specified font
 754 %  and text:
 755 %
 756 %    character width
 757 %    character height
 758 %    ascender
 759 %    descender
 760 %    text width
 761 %    text height
 762 %    maximum horizontal advance
 763 %    bounds: x1
 764 %    bounds: y1
 765 %    bounds: x2
 766 %    bounds: y2
 767 %    origin: x
 768 %    origin: y
 769 %    underline position
 770 %    underline thickness
 771 %
 772 %  The format of the GetTypeMetrics method is:
 773 %
 774 %      MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info,
 775 %        TypeMetric *metrics,ExceptionInfo *exception)
 776 %
 777 %  A description of each parameter follows:
 778 %
 779 %    o image: the image.
 780 %
 781 %    o draw_info: the draw info.
 782 %
 783 %    o metrics: Return the font metrics in this structure.
 784 %
 785 %    o exception: return any errors or warnings in this structure.
 786 %
 787 */
 788 MagickExport MagickBooleanType GetTypeMetrics(Image *image,
 789   const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception)
 790 {
 791   DrawInfo
 792     *annotate_info;
 793
 794   MagickBooleanType
 795     status;
 796
 797   PointInfo
 798     offset;
 799
 800   assert(image != (Image *) NULL);
 801   assert(image->signature == MagickSignature);
 802   if (image->debug != MagickFalse)
 803     (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
 804   assert(draw_info != (DrawInfo *) NULL);
 805   assert(draw_info->text != (char *) NULL);
 806   assert(draw_info->signature == MagickSignature);
 807   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 808   annotate_info->render=MagickFalse;
 809   annotate_info->direction=UndefinedDirection;
 810   (void) ResetMagickMemory(metrics,0,sizeof(*metrics));
 811   offset.x=0.0;
 812   offset.y=0.0;
 813   status=RenderType(image,annotate_info,&offset,metrics,exception);
 814   if (image->debug != MagickFalse)
 815     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Metrics: text: %s; "
 816       "width: %g; height: %g; ascent: %g; descent: %g; max advance: %g; "
 817       "bounds: %g,%g  %g,%g; origin: %g,%g; pixels per em: %g,%g; "
 818       "underline position: %g; underline thickness: %g",annotate_info->text,
 819       metrics->width,metrics->height,metrics->ascent,metrics->descent,
 820       metrics->max_advance,metrics->bounds.x1,metrics->bounds.y1,
 821       metrics->bounds.x2,metrics->bounds.y2,metrics->origin.x,metrics->origin.y,
 822       metrics->pixels_per_em.x,metrics->pixels_per_em.y,
 823       metrics->underline_position,metrics->underline_thickness);
 824   annotate_info=DestroyDrawInfo(annotate_info);
 825   return(status);
 826 }
 827 \f
 828 /*
 829 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 830 %                                                                             %
 831 %                                                                             %
 832 %                                                                             %
 833 +   R e n d e r T y p e                                                       %
 834 %                                                                             %
 835 %                                                                             %
 836 %                                                                             %
 837 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 838 %
 839 %  RenderType() renders text on the image.  It also returns the bounding box of
 840 %  the text relative to the image.
 841 %
 842 %  The format of the RenderType method is:
 843 %
 844 %      MagickBooleanType RenderType(Image *image,DrawInfo *draw_info,
 845 %        const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception)
 846 %
 847 %  A description of each parameter follows:
 848 %
 849 %    o image: the image.
 850 %
 851 %    o draw_info: the draw info.
 852 %
 853 %    o offset: (x,y) location of text relative to image.
 854 %
 855 %    o metrics: bounding box of text.
 856 %
 857 %    o exception: return any errors or warnings in this structure.
 858 %
 859 */
 860 static MagickBooleanType RenderType(Image *image,const DrawInfo *draw_info,
 861   const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception)
 862 {
 863   const TypeInfo
 864     *type_info;
 865
 866   DrawInfo
 867     *annotate_info;
 868
 869   MagickBooleanType
 870     status;
 871
 872   type_info=(const TypeInfo *) NULL;
 873   if (draw_info->font != (char *) NULL)
 874     {
 875       if (*draw_info->font == '@')
 876         {
 877           status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
 878             metrics,exception);
 879           return(status);
 880         }
 881       if (*draw_info->font == '-')
 882         return(RenderX11(image,draw_info,offset,metrics,exception));
 883       if (IsPathAccessible(draw_info->font) != MagickFalse)
 884         {
 885           status=RenderFreetype(image,draw_info,draw_info->encoding,offset,
 886             metrics,exception);
 887           return(status);
 888         }
 889       type_info=GetTypeInfo(draw_info->font,exception);
 890       if (type_info == (const TypeInfo *) NULL)
 891         (void) ThrowMagickException(exception,GetMagickModule(),TypeWarning,
 892           "UnableToReadFont","`%s'",draw_info->font);
 893     }
 894   if ((type_info == (const TypeInfo *) NULL) &&
 895       (draw_info->family != (const char *) NULL))
 896     {
 897       type_info=GetTypeInfoByFamily(draw_info->family,draw_info->style,
 898         draw_info->stretch,draw_info->weight,exception);
 899       if (type_info == (const TypeInfo *) NULL)
 900         (void) ThrowMagickException(exception,GetMagickModule(),TypeWarning,
 901           "UnableToReadFont","`%s'",draw_info->family);
 902     }
 903   if (type_info == (const TypeInfo *) NULL)
 904     type_info=GetTypeInfoByFamily("Arial",draw_info->style,
 905       draw_info->stretch,draw_info->weight,exception);
 906   if (type_info == (const TypeInfo *) NULL)
 907     type_info=GetTypeInfoByFamily("Helvetica",draw_info->style,
 908       draw_info->stretch,draw_info->weight,exception);
 909   if (type_info == (const TypeInfo *) NULL)
 910     type_info=GetTypeInfoByFamily("Century Schoolbook",draw_info->style,
 911       draw_info->stretch,draw_info->weight,exception);
 912   if (type_info == (const TypeInfo *) NULL)
 913     type_info=GetTypeInfoByFamily("Sans",draw_info->style,
 914       draw_info->stretch,draw_info->weight,exception);
 915   if (type_info == (const TypeInfo *) NULL)
 916     type_info=GetTypeInfoByFamily((const char *) NULL,draw_info->style,
 917       draw_info->stretch,draw_info->weight,exception);
 918   if (type_info == (const TypeInfo *) NULL)
 919     type_info=GetTypeInfo("*",exception);
 920   if (type_info == (const TypeInfo *) NULL)
 921     {
 922       status=RenderFreetype(image,draw_info,draw_info->encoding,offset,metrics,
 923         exception);
 924       return(status);
 925     }
 926   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
 927   annotate_info->face=type_info->face;
 928   if (type_info->metrics != (char *) NULL)
 929     (void) CloneString(&annotate_info->metrics,type_info->metrics);
 930   if (type_info->glyphs != (char *) NULL)
 931     (void) CloneString(&annotate_info->font,type_info->glyphs);
 932   status=RenderFreetype(image,annotate_info,type_info->encoding,offset,metrics,
 933     exception);
 934   annotate_info=DestroyDrawInfo(annotate_info);
 935   return(status);
 936 }
 937 \f
 938 /*
 939 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 940 %                                                                             %
 941 %                                                                             %
 942 %                                                                             %
 943 +   R e n d e r F r e e t y p e                                               %
 944 %                                                                             %
 945 %                                                                             %
 946 %                                                                             %
 947 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 948 %
 949 %  RenderFreetype() renders text on the image with a Truetype font.  It also
 950 %  returns the bounding box of the text relative to the image.
 951 %
 952 %  The format of the RenderFreetype method is:
 953 %
 954 %      MagickBooleanType RenderFreetype(Image *image,DrawInfo *draw_info,
 955 %        const char *encoding,const PointInfo *offset,TypeMetric *metrics,
 956 %        ExceptionInfo *exception)
 957 %
 958 %  A description of each parameter follows:
 959 %
 960 %    o image: the image.
 961 %
 962 %    o draw_info: the draw info.
 963 %
 964 %    o encoding: the font encoding.
 965 %
 966 %    o offset: (x,y) location of text relative to image.
 967 %
 968 %    o metrics: bounding box of text.
 969 %
 970 %    o exception: return any errors or warnings in this structure.
 971 %
 972 */
 973
 974 #if defined(MAGICKCORE_FREETYPE_DELEGATE)
 975
 976 static int TraceCubicBezier(FT_Vector *p,FT_Vector *q,FT_Vector *to,
 977   DrawInfo *draw_info)
 978 {
 979   AffineMatrix
 980     affine;
 981
 982   char
 983     path[MaxTextExtent];
 984
 985   affine=draw_info->affine;
 986   (void) FormatLocaleString(path,MaxTextExtent,
 987     "C%g,%g %g,%g %g,%g",affine.tx+p->x/64.0,affine.ty-
 988     p->y/64.0,affine.tx+q->x/64.0,affine.ty-q->y/64.0,affine.tx+to->x/64.0,
 989     affine.ty-to->y/64.0);
 990   (void) ConcatenateString(&draw_info->primitive,path);
 991   return(0);
 992 }
 993
 994 static int TraceLineTo(FT_Vector *to,DrawInfo *draw_info)
 995 {
 996   AffineMatrix
 997     affine;
 998
 999   char
1000     path[MaxTextExtent];
1001
1002   affine=draw_info->affine;
1003   (void) FormatLocaleString(path,MaxTextExtent,"L%g,%g",affine.tx+
1004     to->x/64.0,affine.ty-to->y/64.0);
1005   (void) ConcatenateString(&draw_info->primitive,path);
1006   return(0);
1007 }
1008
1009 static int TraceMoveTo(FT_Vector *to,DrawInfo *draw_info)
1010 {
1011   AffineMatrix
1012     affine;
1013
1014   char
1015     path[MaxTextExtent];
1016
1017   affine=draw_info->affine;
1018   (void) FormatLocaleString(path,MaxTextExtent,"M%g,%g",affine.tx+
1019     to->x/64.0,affine.ty-to->y/64.0);
1020   (void) ConcatenateString(&draw_info->primitive,path);
1021   return(0);
1022 }
1023
1024 static int TraceQuadraticBezier(FT_Vector *control,FT_Vector *to,
1025   DrawInfo *draw_info)
1026 {
1027   AffineMatrix
1028     affine;
1029
1030   char
1031     path[MaxTextExtent];
1032
1033   affine=draw_info->affine;
1034   (void) FormatLocaleString(path,MaxTextExtent,"Q%g,%g %g,%g",
1035     affine.tx+control->x/64.0,affine.ty-control->y/64.0,affine.tx+to->x/64.0,
1036     affine.ty-to->y/64.0);
1037   (void) ConcatenateString(&draw_info->primitive,path);
1038   return(0);
1039 }
1040
1041 static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
1042   const char *encoding,const PointInfo *offset,TypeMetric *metrics,
1043   ExceptionInfo *exception)
1044 {
1045 #if !defined(FT_OPEN_PATHNAME)
1046 #define FT_OPEN_PATHNAME  ft_open_pathname
1047 #endif
1048
1049   typedef struct _GlyphInfo
1050   {
1051     FT_UInt
1052       id;
1053
1054     FT_Vector
1055       origin;
1056
1057     FT_Glyph
1058       image;
1059   } GlyphInfo;
1060
1061   const char
1062     *value;
1063
1064   double
1065     direction;
1066
1067   DrawInfo
1068     *annotate_info;
1069
1070   FT_BBox
1071     bounds;
1072
1073   FT_BitmapGlyph
1074     bitmap;
1075
1076   FT_Encoding
1077     encoding_type;
1078
1079   FT_Error
1080     ft_status;
1081
1082   FT_Face
1083     face;
1084
1085   FT_Int32
1086     flags;
1087
1088   FT_Library
1089     library;
1090
1091   FT_Matrix
1092     affine;
1093
1094   FT_Open_Args
1095     args;
1096
1097   FT_Vector
1098     origin;
1099
1100   GlyphInfo
1101     glyph,
1102     last_glyph;
1103
1104   MagickBooleanType
1105     status;
1106
1107   PointInfo
1108     point,
1109     resolution;
1110
1111   register char
1112     *p;
1113
1114   ssize_t
1115     code,
1116     y;
1117
1118   static FT_Outline_Funcs
1119     OutlineMethods =
1120     {
1121       (FT_Outline_MoveTo_Func) TraceMoveTo,
1122       (FT_Outline_LineTo_Func) TraceLineTo,
1123       (FT_Outline_ConicTo_Func) TraceQuadraticBezier,
1124       (FT_Outline_CubicTo_Func) TraceCubicBezier,
1125       0, 0
1126     };
1127
1128   unsigned char
1129     *utf8;
1130
1131   /*
1132     Initialize Truetype library.
1133   */
1134   ft_status=FT_Init_FreeType(&library);
1135   if (ft_status != 0)
1136     ThrowBinaryException(TypeError,"UnableToInitializeFreetypeLibrary",
1137       image->filename);
1138   args.flags=FT_OPEN_PATHNAME;
1139   if (draw_info->font == (char *) NULL)
1140     args.pathname=ConstantString("helvetica");
1141   else
1142     if (*draw_info->font != '@')
1143       args.pathname=ConstantString(draw_info->font);
1144     else
1145       args.pathname=ConstantString(draw_info->font+1);
1146   face=(FT_Face) NULL;
1147   ft_status=FT_Open_Face(library,&args,(long) draw_info->face,&face);
1148   args.pathname=DestroyString(args.pathname);
1149   if (ft_status != 0)
1150     {
1151       (void) FT_Done_FreeType(library);
1152       (void) ThrowMagickException(exception,GetMagickModule(),TypeError,
1153         "UnableToReadFont","`%s'",draw_info->font);
1154       return(RenderPostscript(image,draw_info,offset,metrics,exception));
1155     }
1156   if ((draw_info->metrics != (char *) NULL) &&
1157       (IsPathAccessible(draw_info->metrics) != MagickFalse))
1158     (void) FT_Attach_File(face,draw_info->metrics);
1159   encoding_type=ft_encoding_unicode;
1160   ft_status=FT_Select_Charmap(face,encoding_type);
1161   if ((ft_status != 0) && (face->num_charmaps != 0))
1162     ft_status=FT_Set_Charmap(face,face->charmaps[0]);
1163   if (encoding != (const char *) NULL)
1164     {
1165       if (LocaleCompare(encoding,"AdobeCustom") == 0)
1166         encoding_type=ft_encoding_adobe_custom;
1167       if (LocaleCompare(encoding,"AdobeExpert") == 0)
1168         encoding_type=ft_encoding_adobe_expert;
1169       if (LocaleCompare(encoding,"AdobeStandard") == 0)
1170         encoding_type=ft_encoding_adobe_standard;
1171       if (LocaleCompare(encoding,"AppleRoman") == 0)
1172         encoding_type=ft_encoding_apple_roman;
1173       if (LocaleCompare(encoding,"BIG5") == 0)
1174         encoding_type=ft_encoding_big5;
1175       if (LocaleCompare(encoding,"GB2312") == 0)
1176         encoding_type=ft_encoding_gb2312;
1177       if (LocaleCompare(encoding,"Johab") == 0)
1178         encoding_type=ft_encoding_johab;
1179 #if defined(ft_encoding_latin_1)
1180       if (LocaleCompare(encoding,"Latin-1") == 0)
1181         encoding_type=ft_encoding_latin_1;
1182 #endif
1183       if (LocaleCompare(encoding,"Latin-2") == 0)
1184         encoding_type=ft_encoding_latin_2;
1185       if (LocaleCompare(encoding,"None") == 0)
1186         encoding_type=ft_encoding_none;
1187       if (LocaleCompare(encoding,"SJIScode") == 0)
1188         encoding_type=ft_encoding_sjis;
1189       if (LocaleCompare(encoding,"Symbol") == 0)
1190         encoding_type=ft_encoding_symbol;
1191       if (LocaleCompare(encoding,"Unicode") == 0)
1192         encoding_type=ft_encoding_unicode;
1193       if (LocaleCompare(encoding,"Wansung") == 0)
1194         encoding_type=ft_encoding_wansung;
1195       ft_status=FT_Select_Charmap(face,encoding_type);
1196       if (ft_status != 0)
1197         {
1198           (void) FT_Done_Face(face);
1199           (void) FT_Done_FreeType(library);
1200           ThrowBinaryException(TypeError,"UnrecognizedFontEncoding",encoding);
1201         }
1202     }
1203   /*
1204     Set text size.
1205   */
1206   resolution.x=DefaultResolution;
1207   resolution.y=DefaultResolution;
1208   if (draw_info->density != (char *) NULL)
1209     {
1210       GeometryInfo
1211         geometry_info;
1212
1213       MagickStatusType
1214         flags;
1215
1216       flags=ParseGeometry(draw_info->density,&geometry_info);
1217       resolution.x=geometry_info.rho;
1218       resolution.y=geometry_info.sigma;
1219       if ((flags & SigmaValue) == 0)
1220         resolution.y=resolution.x;
1221     }
1222   ft_status=FT_Set_Char_Size(face,(FT_F26Dot6) (64.0*draw_info->pointsize),
1223     (FT_F26Dot6) (64.0*draw_info->pointsize),(FT_UInt) resolution.x,
1224     (FT_UInt) resolution.y);
1225   metrics->pixels_per_em.x=face->size->metrics.x_ppem;
1226   metrics->pixels_per_em.y=face->size->metrics.y_ppem;
1227   metrics->ascent=(double) face->size->metrics.ascender/64.0;
1228   metrics->descent=(double) face->size->metrics.descender/64.0;
1229   metrics->width=0;
1230   metrics->origin.x=0;
1231   metrics->origin.y=0;
1232   metrics->height=(double) face->size->metrics.height/64.0;
1233   metrics->max_advance=0.0;
1234   if (face->size->metrics.max_advance > MagickEpsilon)
1235     metrics->max_advance=(double) face->size->metrics.max_advance/64.0;
1236   metrics->bounds.x1=0.0;
1237   metrics->bounds.y1=metrics->descent;
1238   metrics->bounds.x2=metrics->ascent+metrics->descent;
1239   metrics->bounds.y2=metrics->ascent+metrics->descent;
1240   metrics->underline_position=face->underline_position/64.0;
1241   metrics->underline_thickness=face->underline_thickness/64.0;
1242   if ((draw_info->text == (char *) NULL) || (*draw_info->text == '\0'))
1243     {
1244       (void) FT_Done_Face(face);
1245       (void) FT_Done_FreeType(library);
1246       return(MagickTrue);
1247     }
1248   /*
1249     Compute bounding box.
1250   */
1251   if (image->debug != MagickFalse)
1252     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Font %s; "
1253       "font-encoding %s; text-encoding %s; pointsize %g",
1254       draw_info->font != (char *) NULL ? draw_info->font : "none",
1255       encoding != (char *) NULL ? encoding : "none",
1256       draw_info->encoding != (char *) NULL ? draw_info->encoding : "none",
1257       draw_info->pointsize);
1258   flags=FT_LOAD_NO_BITMAP;
1259   if (draw_info->text_antialias == MagickFalse)
1260     flags|=FT_LOAD_TARGET_MONO;
1261   else
1262     {
1263 #if defined(FT_LOAD_TARGET_LIGHT)
1264       flags|=FT_LOAD_TARGET_LIGHT;
1265 #elif defined(FT_LOAD_TARGET_LCD)
1266       flags|=FT_LOAD_TARGET_LCD;
1267 #endif
1268     }
1269   value=GetImageProperty(image,"type:hinting",exception);
1270   if ((value != (const char *) NULL) && (LocaleCompare(value,"off") == 0))
1271     flags|=FT_LOAD_NO_HINTING;
1272   glyph.id=0;
1273   glyph.image=NULL;
1274   last_glyph.id=0;
1275   last_glyph.image=NULL;
1276   origin.x=0;
1277   origin.y=0;
1278   affine.xx=65536L;
1279   affine.yx=0L;
1280   affine.xy=0L;
1281   affine.yy=65536L;
1282   if (draw_info->render != MagickFalse)
1283     {
1284       affine.xx=(FT_Fixed) (65536L*draw_info->affine.sx+0.5);
1285       affine.yx=(FT_Fixed) (-65536L*draw_info->affine.rx+0.5);
1286       affine.xy=(FT_Fixed) (-65536L*draw_info->affine.ry+0.5);
1287       affine.yy=(FT_Fixed) (65536L*draw_info->affine.sy+0.5);
1288     }
1289   annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info);
1290   (void) CloneString(&annotate_info->primitive,"path '");
1291   if (draw_info->render != MagickFalse)
1292     {
1293       if (image->storage_class != DirectClass)
1294         (void) SetImageStorageClass(image,DirectClass,exception);
1295       if (image->alpha_trait != BlendPixelTrait)
1296         (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
1297     }
1298   direction=1.0;
1299   if (draw_info->direction == RightToLeftDirection)
1300     direction=(-1.0);
1301   point.x=0.0;
1302   point.y=0.0;
1303   for (p=draw_info->text; GetUTFCode(p) != 0; p+=GetUTFOctets(p))
1304     if (GetUTFCode(p) < 0)
1305       break;
1306   utf8=(unsigned char *) NULL;
1307   if (GetUTFCode(p) == 0)
1308     p=draw_info->text;
1309   else
1310     {
1311       utf8=ConvertLatin1ToUTF8((unsigned char *) draw_info->text);
1312       if (utf8 != (unsigned char *) NULL)
1313         p=(char *) utf8;
1314     }
1315   status=MagickTrue;
1316   for (code=0; GetUTFCode(p) != 0; p+=GetUTFOctets(p))
1317   {
1318     /*
1319       Render UTF-8 sequence.
1320     */
1321     glyph.id=FT_Get_Char_Index(face,GetUTFCode(p));
1322     if (glyph.id == 0)
1323       glyph.id=FT_Get_Char_Index(face,'?');
1324     if ((glyph.id != 0) && (last_glyph.id != 0))
1325       {
1326         if (fabs(draw_info->kerning) >= MagickEpsilon)
1327           origin.x+=(FT_Pos) (64.0*direction*draw_info->kerning);
1328         else
1329           if (FT_HAS_KERNING(face))
1330             {
1331               FT_Vector
1332                 kerning;
1333
1334               ft_status=FT_Get_Kerning(face,last_glyph.id,glyph.id,
1335                 ft_kerning_default,&kerning);
1336               if (ft_status == 0)
1337                 origin.x+=(FT_Pos) (direction*kerning.x);
1338             }
1339         }
1340     glyph.origin=origin;
1341     ft_status=FT_Load_Glyph(face,glyph.id,flags);
1342     if (ft_status != 0)
1343       continue;
1344     ft_status=FT_Get_Glyph(face->glyph,&glyph.image);
1345     if (ft_status != 0)
1346       continue;
1347     ft_status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->outline,
1348       &bounds);
1349     if (ft_status != 0)
1350       continue;
1351     if ((p == draw_info->text) || (bounds.xMin < metrics->bounds.x1))
1352       metrics->bounds.x1=(double) bounds.xMin;
1353     if ((p == draw_info->text) || (bounds.yMin < metrics->bounds.y1))
1354       metrics->bounds.y1=(double) bounds.yMin;
1355     if ((p == draw_info->text) || (bounds.xMax > metrics->bounds.x2))
1356       metrics->bounds.x2=(double) bounds.xMax;
1357     if ((p == draw_info->text) || (bounds.yMax > metrics->bounds.y2))
1358       metrics->bounds.y2=(double) bounds.yMax;
1359     if ((draw_info->stroke.alpha != TransparentAlpha) ||
1360         (draw_info->stroke_pattern != (Image *) NULL))
1361       {
1362         if ((status != MagickFalse) && (draw_info->render != MagickFalse))
1363           {
1364             /*
1365               Trace the glyph.
1366             */
1367             annotate_info->affine.tx=glyph.origin.x/64.0;
1368             annotate_info->affine.ty=glyph.origin.y/64.0;
1369             (void) FT_Outline_Decompose(&((FT_OutlineGlyph) glyph.image)->
1370               outline,&OutlineMethods,annotate_info);
1371           }
1372         }
1373     FT_Vector_Transform(&glyph.origin,&affine);
1374     (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1375     ft_status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1376       (FT_Vector *) NULL,MagickTrue);
1377     if (ft_status != 0)
1378       continue;
1379     bitmap=(FT_BitmapGlyph) glyph.image;
1380     point.x=offset->x+bitmap->left;
1381     if (bitmap->bitmap.pixel_mode == ft_pixel_mode_mono)
1382       point.x=offset->x+(origin.x >> 6);
1383     point.y=offset->y-bitmap->top;
1384     if (draw_info->render != MagickFalse)
1385       {
1386         CacheView
1387           *image_view;
1388
1389         register unsigned char
1390           *p;
1391
1392         /*
1393           Rasterize the glyph.
1394         */
1395         image_view=AcquireAuthenticCacheView(image,exception);
1396         p=bitmap->bitmap.buffer;
1397         for (y=0; y < (ssize_t) bitmap->bitmap.rows; y++)
1398         {
1399           MagickBooleanType
1400             active,
1401             sync;
1402
1403           double
1404             fill_opacity;
1405
1406           PixelInfo
1407             fill_color;
1408
1409           register Quantum
1410             *restrict q;
1411
1412           register ssize_t
1413             x;
1414
1415           ssize_t
1416             n,
1417             x_offset,
1418             y_offset;
1419
1420           if (status == MagickFalse)
1421             continue;
1422           x_offset=(ssize_t) ceil(point.x-0.5);
1423           y_offset=(ssize_t) ceil(point.y+y-0.5);
1424           if ((y_offset < 0) || (y_offset >= (ssize_t) image->rows))
1425             continue;
1426           q=(Quantum *) NULL;
1427           if ((x_offset < 0) || (x_offset >= (ssize_t) image->columns))
1428             active=MagickFalse;
1429           else
1430             {
1431               q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,
1432                 bitmap->bitmap.width,1,exception);
1433               active=q != (Quantum *) NULL ? MagickTrue : MagickFalse;
1434             }
1435           n=y*bitmap->bitmap.pitch-1;
1436           for (x=0; x < (ssize_t) bitmap->bitmap.width; x++)
1437           {
1438             n++;
1439             x_offset++;
1440             if ((x_offset < 0) || (x_offset >= (ssize_t) image->columns))
1441               {
1442                 q+=GetPixelChannels(image);
1443                 continue;
1444               }
1445             if (bitmap->bitmap.pixel_mode != ft_pixel_mode_mono)
1446               fill_opacity=(double) (p[n])/(bitmap->bitmap.num_grays-1);
1447             else
1448               fill_opacity=((p[(x >> 3)+y*bitmap->bitmap.pitch] &
1449                 (1 << (~x & 0x07)))) == 0 ? 0.0 : 1.0;
1450             if (draw_info->text_antialias == MagickFalse)
1451               fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0;
1452             if (active == MagickFalse)
1453               q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,1,1,
1454                 exception);
1455             if (q == (Quantum *) NULL)
1456               {
1457                 q+=GetPixelChannels(image);
1458                 continue;
1459               }
1460             GetPixelInfo(image,&fill_color);
1461             (void) GetFillColor(draw_info,x_offset,y_offset,&fill_color,
1462               exception);
1463             fill_opacity=fill_opacity*fill_color.alpha;
1464             CompositePixelOver(image,&fill_color,fill_opacity,q,
1465               GetPixelAlpha(image,q),q);
1466             if (active == MagickFalse)
1467               {
1468                 sync=SyncCacheViewAuthenticPixels(image_view,exception);
1469                 if (sync == MagickFalse)
1470                   status=MagickFalse;
1471               }
1472             q+=GetPixelChannels(image);
1473           }
1474           sync=SyncCacheViewAuthenticPixels(image_view,exception);
1475           if (sync == MagickFalse)
1476             status=MagickFalse;
1477         }
1478         image_view=DestroyCacheView(image_view);
1479       }
1480     if ((bitmap->left+bitmap->bitmap.width) > metrics->width)
1481       metrics->width=bitmap->left+bitmap->bitmap.width;
1482     if ((fabs(draw_info->interword_spacing) >= MagickEpsilon) &&
1483         (IsUTFSpace(GetUTFCode(p)) != MagickFalse) &&
1484         (IsUTFSpace(code) == MagickFalse))
1485       origin.x+=(FT_Pos) (64.0*direction*draw_info->interword_spacing);
1486     else
1487       origin.x+=(FT_Pos) (direction*face->glyph->advance.x);
1488     metrics->origin.x=(double) origin.x;
1489     metrics->origin.y=(double) origin.y;
1490     if (last_glyph.id != 0)
1491       FT_Done_Glyph(last_glyph.image);
1492     last_glyph=glyph;
1493     code=GetUTFCode(p);
1494   }
1495   if (utf8 != (unsigned char *) NULL)
1496     utf8=(unsigned char *) RelinquishMagickMemory(utf8);
1497   if (last_glyph.id != 0)
1498     FT_Done_Glyph(last_glyph.image);
1499   if ((draw_info->stroke.alpha != TransparentAlpha) ||
1500       (draw_info->stroke_pattern != (Image *) NULL))
1501     {
1502       if ((status != MagickFalse) && (draw_info->render != MagickFalse))
1503         {
1504           /*
1505             Draw text stroke.
1506           */
1507           annotate_info->linejoin=RoundJoin;
1508           annotate_info->affine.tx=offset->x;
1509           annotate_info->affine.ty=offset->y;
1510           (void) ConcatenateString(&annotate_info->primitive,"'");
1511           (void) DrawImage(image,annotate_info,exception);
1512         }
1513       }
1514   /*
1515     Determine font metrics.
1516   */
1517   glyph.id=FT_Get_Char_Index(face,'_');
1518   glyph.origin=origin;
1519   ft_status=FT_Load_Glyph(face,glyph.id,flags);
1520   if (ft_status == 0)
1521     {
1522       ft_status=FT_Get_Glyph(face->glyph,&glyph.image);
1523       if (ft_status == 0)
1524         {
1525           ft_status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->
1526             outline,&bounds);
1527           if (ft_status == 0)
1528             {
1529               FT_Vector_Transform(&glyph.origin,&affine);
1530               (void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin);
1531               ft_status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal,
1532                 (FT_Vector *) NULL,MagickTrue);
1533               bitmap=(FT_BitmapGlyph) glyph.image;
1534               if (bitmap->left > metrics->width)
1535                 metrics->width=bitmap->left;
1536             }
1537         }
1538       FT_Done_Glyph(glyph.image);
1539     }
1540   metrics->width-=metrics->bounds.x1/64.0;
1541   metrics->width+=annotate_info->stroke_width;
1542   metrics->bounds.x1/=64.0;
1543   metrics->bounds.y1/=64.0;
1544   metrics->bounds.x2/=64.0;
1545   metrics->bounds.y2/=64.0;
1546   metrics->origin.x/=64.0;
1547   metrics->origin.y/=64.0;
1548   /*
1549     Relinquish resources.
1550   */
1551   annotate_info=DestroyDrawInfo(annotate_info);
1552   (void) FT_Done_Face(face);
1553   (void) FT_Done_FreeType(library);
1554   return(status);
1555 }
1556 #else
1557 static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info,
1558   const char *magick_unused(encoding),const PointInfo *offset,
1559   TypeMetric *metrics,ExceptionInfo *exception)
1560 {
1561   (void) ThrowMagickException(exception,GetMagickModule(),
1562     MissingDelegateWarning,"DelegateLibrarySupportNotBuiltIn","'%s' (Freetype)",
1563     draw_info->font != (char *) NULL ? draw_info->font : "none");
1564   return(RenderPostscript(image,draw_info,offset,metrics,exception));
1565 }
1566 #endif
1567 \f
1568 /*
1569 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1570 %                                                                             %
1571 %                                                                             %
1572 %                                                                             %
1573 +   R e n d e r P o s t s c r i p t                                           %
1574 %                                                                             %
1575 %                                                                             %
1576 %                                                                             %
1577 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1578 %
1579 %  RenderPostscript() renders text on the image with a Postscript font.  It
1580 %  also returns the bounding box of the text relative to the image.
1581 %
1582 %  The format of the RenderPostscript method is:
1583 %
1584 %      MagickBooleanType RenderPostscript(Image *image,DrawInfo *draw_info,
1585 %        const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception)
1586 %
1587 %  A description of each parameter follows:
1588 %
1589 %    o image: the image.
1590 %
1591 %    o draw_info: the draw info.
1592 %
1593 %    o offset: (x,y) location of text relative to image.
1594 %
1595 %    o metrics: bounding box of text.
1596 %
1597 %    o exception: return any errors or warnings in this structure.
1598 %
1599 */
1600
1601 static inline size_t MagickMin(const size_t x,const size_t y)
1602 {
1603   if (x < y)
1604     return(x);
1605   return(y);
1606 }
1607
1608 static char *EscapeParenthesis(const char *text)
1609 {
1610   char
1611     *buffer;
1612
1613   register char
1614     *p;
1615
1616   register ssize_t
1617     i;
1618
1619   size_t
1620     escapes;
1621
1622   escapes=0;
1623   buffer=AcquireString(text);
1624   p=buffer;
1625   for (i=0; i < (ssize_t) MagickMin(strlen(text),MaxTextExtent-escapes-1); i++)
1626   {
1627     if ((text[i] == '(') || (text[i] == ')'))
1628       {
1629         *p++='\\';
1630         escapes++;
1631       }
1632     *p++=text[i];
1633   }
1634   *p='\0';
1635   return(buffer);
1636 }
1637
1638 static MagickBooleanType RenderPostscript(Image *image,
1639   const DrawInfo *draw_info,const PointInfo *offset,TypeMetric *metrics,
1640   ExceptionInfo *exception)
1641 {
1642   char
1643     filename[MaxTextExtent],
1644     geometry[MaxTextExtent],
1645     *text;
1646
1647   FILE
1648     *file;
1649
1650   Image
1651     *annotate_image;
1652
1653   ImageInfo
1654     *annotate_info;
1655
1656   int
1657     unique_file;
1658
1659   MagickBooleanType
1660     identity;
1661
1662   PointInfo
1663     extent,
1664     point,
1665     resolution;
1666
1667   register ssize_t
1668     i;
1669
1670   size_t
1671     length;
1672
1673   ssize_t
1674     y;
1675
1676   /*
1677     Render label with a Postscript font.
1678   */
1679   if (image->debug != MagickFalse)
1680     (void) LogMagickEvent(AnnotateEvent,GetMagickModule(),
1681       "Font %s; pointsize %g",draw_info->font != (char *) NULL ?
1682       draw_info->font : "none",draw_info->pointsize);
1683   file=(FILE *) NULL;
1684   unique_file=AcquireUniqueFileResource(filename);
1685   if (unique_file != -1)
1686     file=fdopen(unique_file,"wb");
1687   if ((unique_file == -1) || (file == (FILE *) NULL))
1688     {
1689       ThrowFileException(exception,FileOpenError,"UnableToOpenFile",filename);
1690       return(MagickFalse);
1691     }
1692   (void) FormatLocaleFile(file,"%%!PS-Adobe-3.0\n");
1693   (void) FormatLocaleFile(file,"/ReencodeType\n");
1694   (void) FormatLocaleFile(file,"{\n");
1695   (void) FormatLocaleFile(file,"  findfont dup length\n");
1696   (void) FormatLocaleFile(file,
1697     "  dict begin { 1 index /FID ne {def} {pop pop} ifelse } forall\n");
1698   (void) FormatLocaleFile(file,
1699     "  /Encoding ISOLatin1Encoding def currentdict end definefont pop\n");
1700   (void) FormatLocaleFile(file,"} bind def\n");
1701   /*
1702     Sample to compute bounding box.
1703   */
1704   identity=(fabs(draw_info->affine.sx-draw_info->affine.sy) < MagickEpsilon) &&
1705     (fabs(draw_info->affine.rx) < MagickEpsilon) &&
1706     (fabs(draw_info->affine.ry) < MagickEpsilon) ? MagickTrue : MagickFalse;
1707   extent.x=0.0;
1708   extent.y=0.0;
1709   length=strlen(draw_info->text);
1710   for (i=0; i <= (ssize_t) (length+2); i++)
1711   {
1712     point.x=fabs(draw_info->affine.sx*i*draw_info->pointsize+
1713       draw_info->affine.ry*2.0*draw_info->pointsize);
1714     point.y=fabs(draw_info->affine.rx*i*draw_info->pointsize+
1715       draw_info->affine.sy*2.0*draw_info->pointsize);
1716     if (point.x > extent.x)
1717       extent.x=point.x;
1718     if (point.y > extent.y)
1719       extent.y=point.y;
1720   }
1721   (void) FormatLocaleFile(file,"%g %g moveto\n",identity  != MagickFalse ? 0.0 :
1722     extent.x/2.0,extent.y/2.0);
1723   (void) FormatLocaleFile(file,"%g %g scale\n",draw_info->pointsize,
1724     draw_info->pointsize);
1725   if ((draw_info->font == (char *) NULL) || (*draw_info->font == '\0') ||
1726       (strchr(draw_info->font,'/') != (char *) NULL))
1727     (void) FormatLocaleFile(file,
1728       "/Times-Roman-ISO dup /Times-Roman ReencodeType findfont setfont\n");
1729   else
1730     (void) FormatLocaleFile(file,
1731       "/%s-ISO dup /%s ReencodeType findfont setfont\n",draw_info->font,
1732       draw_info->font);
1733   (void) FormatLocaleFile(file,"[%g %g %g %g 0 0] concat\n",
1734     draw_info->affine.sx,-draw_info->affine.rx,-draw_info->affine.ry,
1735     draw_info->affine.sy);
1736   text=EscapeParenthesis(draw_info->text);
1737   if (identity == MagickFalse)
1738     (void) FormatLocaleFile(file,"(%s) stringwidth pop -0.5 mul -0.5 rmoveto\n",
1739       text);
1740   (void) FormatLocaleFile(file,"(%s) show\n",text);
1741   text=DestroyString(text);
1742   (void) FormatLocaleFile(file,"showpage\n");
1743   (void) fclose(file);
1744   (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g+0+0!",
1745     floor(extent.x+0.5),floor(extent.y+0.5));
1746   annotate_info=AcquireImageInfo();
1747   (void) FormatLocaleString(annotate_info->filename,MaxTextExtent,"ps:%s",
1748     filename);
1749   (void) CloneString(&annotate_info->page,geometry);
1750   if (draw_info->density != (char *) NULL)
1751     (void) CloneString(&annotate_info->density,draw_info->density);
1752   annotate_info->antialias=draw_info->text_antialias;
1753   annotate_image=ReadImage(annotate_info,exception);
1754   CatchException(exception);
1755   annotate_info=DestroyImageInfo(annotate_info);
1756   (void) RelinquishUniqueFileResource(filename);
1757   if (annotate_image == (Image *) NULL)
1758     return(MagickFalse);
1759   (void) NegateImage(annotate_image,MagickFalse,exception);
1760   resolution.x=DefaultResolution;
1761   resolution.y=DefaultResolution;
1762   if (draw_info->density != (char *) NULL)
1763     {
1764       GeometryInfo
1765         geometry_info;
1766
1767       MagickStatusType
1768         flags;
1769
1770       flags=ParseGeometry(draw_info->density,&geometry_info);
1771       resolution.x=geometry_info.rho;
1772       resolution.y=geometry_info.sigma;
1773       if ((flags & SigmaValue) == 0)
1774         resolution.y=resolution.x;
1775     }
1776   if (identity == MagickFalse)
1777     (void) TransformImage(&annotate_image,"0x0",(char *) NULL,exception);
1778   else
1779     {
1780       RectangleInfo
1781         crop_info;
1782
1783       crop_info=GetImageBoundingBox(annotate_image,exception);
1784       crop_info.height=(size_t) ((resolution.y/DefaultResolution)*
1785         ExpandAffine(&draw_info->affine)*draw_info->pointsize+0.5);
1786       crop_info.y=(ssize_t) ceil((resolution.y/DefaultResolution)*extent.y/8.0-
1787         0.5);
1788       (void) FormatLocaleString(geometry,MaxTextExtent,
1789         "%.20gx%.20g%+.20g%+.20g",(double) crop_info.width,(double)
1790         crop_info.height,(double) crop_info.x,(double) crop_info.y);
1791       (void) TransformImage(&annotate_image,geometry,(char *) NULL,exception);
1792     }
1793   metrics->pixels_per_em.x=(resolution.y/DefaultResolution)*
1794     ExpandAffine(&draw_info->affine)*draw_info->pointsize;
1795   metrics->pixels_per_em.y=metrics->pixels_per_em.x;
1796   metrics->ascent=metrics->pixels_per_em.x;
1797   metrics->descent=metrics->pixels_per_em.y/-5.0;
1798   metrics->width=(double) annotate_image->columns/
1799     ExpandAffine(&draw_info->affine);
1800   metrics->height=1.152*metrics->pixels_per_em.x;
1801   metrics->max_advance=metrics->pixels_per_em.x;
1802   metrics->bounds.x1=0.0;
1803   metrics->bounds.y1=metrics->descent;
1804   metrics->bounds.x2=metrics->ascent+metrics->descent;
1805   metrics->bounds.y2=metrics->ascent+metrics->descent;
1806   metrics->underline_position=(-2.0);
1807   metrics->underline_thickness=1.0;
1808   if (draw_info->render == MagickFalse)
1809     {
1810       annotate_image=DestroyImage(annotate_image);
1811       return(MagickTrue);
1812     }
1813   if (draw_info->fill.alpha != TransparentAlpha)
1814     {
1815       CacheView
1816         *annotate_view;
1817
1818       MagickBooleanType
1819         sync;
1820
1821       PixelInfo
1822         fill_color;
1823
1824       /*
1825         Render fill color.
1826       */
1827       if (image->alpha_trait != BlendPixelTrait)
1828         (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
1829       if (annotate_image->alpha_trait != BlendPixelTrait)
1830         (void) SetImageAlphaChannel(annotate_image,OpaqueAlphaChannel,
1831           exception);
1832       fill_color=draw_info->fill;
1833       annotate_view=AcquireAuthenticCacheView(annotate_image,exception);
1834       for (y=0; y < (ssize_t) annotate_image->rows; y++)
1835       {
1836         register ssize_t
1837           x;
1838
1839         register Quantum
1840           *restrict q;
1841
1842         q=GetCacheViewAuthenticPixels(annotate_view,0,y,annotate_image->columns,
1843           1,exception);
1844         if (q == (Quantum *) NULL)
1845           break;
1846         for (x=0; x < (ssize_t) annotate_image->columns; x++)
1847         {
1848           (void) GetFillColor(draw_info,x,y,&fill_color,exception);
1849           SetPixelAlpha(annotate_image,ClampToQuantum((((double) QuantumScale*
1850             GetPixelIntensity(annotate_image,q)*fill_color.alpha))),q);
1851           SetPixelRed(annotate_image,fill_color.red,q);
1852           SetPixelGreen(annotate_image,fill_color.green,q);
1853           SetPixelBlue(annotate_image,fill_color.blue,q);
1854           q+=GetPixelChannels(annotate_image);
1855         }
1856         sync=SyncCacheViewAuthenticPixels(annotate_view,exception);
1857         if (sync == MagickFalse)
1858           break;
1859       }
1860       annotate_view=DestroyCacheView(annotate_view);
1861       (void) CompositeImage(image,annotate_image,OverCompositeOp,MagickTrue,
1862         (ssize_t) ceil(offset->x-0.5),(ssize_t) ceil(offset->y-(metrics->ascent+
1863         metrics->descent)-0.5),exception);
1864     }
1865   annotate_image=DestroyImage(annotate_image);
1866   return(MagickTrue);
1867 }
1868 \f
1869 /*
1870 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1871 %                                                                             %
1872 %                                                                             %
1873 %                                                                             %
1874 +   R e n d e r X 1 1                                                         %
1875 %                                                                             %
1876 %                                                                             %
1877 %                                                                             %
1878 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1879 %
1880 %  RenderX11() renders text on the image with an X11 font.  It also returns the
1881 %  bounding box of the text relative to the image.
1882 %
1883 %  The format of the RenderX11 method is:
1884 %
1885 %      MagickBooleanType RenderX11(Image *image,DrawInfo *draw_info,
1886 %        const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception)
1887 %
1888 %  A description of each parameter follows:
1889 %
1890 %    o image: the image.
1891 %
1892 %    o draw_info: the draw info.
1893 %
1894 %    o offset: (x,y) location of text relative to image.
1895 %
1896 %    o metrics: bounding box of text.
1897 %
1898 %    o exception: return any errors or warnings in this structure.
1899 %
1900 */
1901 static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info,
1902   const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception)
1903 {
1904   MagickBooleanType
1905     status;
1906
1907   if (annotate_semaphore == (SemaphoreInfo *) NULL)
1908     ActivateSemaphoreInfo(&annotate_semaphore);
1909   LockSemaphoreInfo(annotate_semaphore);
1910   status=XRenderImage(image,draw_info,offset,metrics,exception);
1911   UnlockSemaphoreInfo(annotate_semaphore);
1912   return(status);
1913 }