/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%                            TTTTT  TTTTT  FFFFF                              %

%                              T      T    F                                  %

%                              T      T    FFF                                %

%                              T      T    F                                  %

%                              T      T    F                                  %

%                                                                             %

%                                                                             %

%             Return A Preview For A TrueType or Postscript Font              %

%                                                                             %

%                              Software Design                                %

%                                   Cristy                                    %

%                                 July 1992                                   %

%                                                                             %

%                                                                             %

%  Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization         %

%  dedicated to making software imaging solutions freely available.           %

%                                                                             %

%  You may not use this file except in compliance with the License.  You may  %

%  obtain a copy of the License at                                            %

%                                                                             %

%    https://imagemagick.org/license/                                         %

%                                                                             %

%  Unless required by applicable law or agreed to in writing, software        %

%  distributed under the License is distributed on an "AS IS" BASIS,          %

%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %

%  See the License for the specific language governing permissions and        %

%  limitations under the License.                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%

*/

/*

  Include declarations.

*/

#include "MagickCore/studio.h"

#include "MagickCore/blob.h"

#include "MagickCore/blob-private.h"

#include "MagickCore/draw.h"

#include "MagickCore/exception.h"

#include "MagickCore/exception-private.h"

#include "MagickCore/image.h"

#include "MagickCore/image-private.h"

#include "MagickCore/list.h"

#include "MagickCore/magick.h"

#include "MagickCore/memory_.h"

#include "MagickCore/quantum-private.h"

#include "MagickCore/resource_.h"

#include "MagickCore/static.h"

#include "MagickCore/string_.h"

#include "MagickCore/module.h"

#include "MagickCore/type.h"

#include "MagickCore/utility.h"

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

#include <ft2build.h>

#if defined(FT_FREETYPE_H)

#  include FT_FREETYPE_H

#else

#  include <freetype/freetype.h>

#endif

#endif

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   I s P F A                                                                 %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  IsPFA()() returns MagickTrue if the image format type, identified by the

%  magick string, is PFA.

%

%  The format of the IsPFA method is:

%

%      MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)

%

%  A description of each parameter follows:

%

%    o magick: compare image format pattern against these bytes.

%

%    o length: Specifies the length of the magick string.

%

%

*/

static MagickBooleanType IsPFA(const unsigned char *magick,const size_t length)

{

  if (length < 14)

    return(MagickFalse);

  if (LocaleNCompare((char *) magick,"%!PS-AdobeFont",14) == 0)

    return(MagickTrue);

  return(MagickFalse);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   I s T T F                                                                 %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  IsTTF()() returns MagickTrue if the image format type, identified by the

%  magick string, is TTF.

%

%  The format of the IsTTF method is:

%

%      MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)

%

%  A description of each parameter follows:

%

%    o magick: compare image format pattern against these bytes.

%

%    o length: Specifies the length of the magick string.

%

%

*/

static MagickBooleanType IsTTF(const unsigned char *magick,const size_t length)

{

  if (length < 5)

    return(MagickFalse);

  if (((int) magick[0] == 0x00) && ((int) magick[1] == 0x01) &&

      ((int) magick[2] == 0x00) && ((int) magick[3] == 0x00) &&

      ((int) magick[4] == 0x00))

    return(MagickTrue);

  return(MagickFalse);

}

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   R e a d T T F I m a g e                                                   %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  ReadTTFImage() reads a TrueType font file and returns it.  It

%  allocates the memory necessary for the new Image structure and returns a

%  pointer to the new image.

%

%  The format of the ReadTTFImage method is:

%

%      Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)

%

%  A description of each parameter follows:

%

%    o image_info: the image info.

%

%    o exception: return any errors or warnings in this structure.

%

*/

static Image *ReadTTFImage(const ImageInfo *image_info,ExceptionInfo *exception)

{

  char

    buffer[MagickPathExtent],

    *text;

  const char

    Text[] =

      "abcdefghijklmnopqrstuvwxyz\n"

      "ABCDEFGHIJKLMNOPQRSTUVWXYZ\n"

      "0123456789.:,;(*!?}^)#${%^&-+@\n";

  const TypeInfo

    *type_info;

  DrawInfo

    *draw_info;

  Image

    *image;

  MagickBooleanType

    status;

  PixelInfo

    background_color;

  ssize_t

    i,

    x;

  Quantum

    *q;

  ssize_t

    y;

  /*

    Open image file.

  */

  assert(image_info != (const ImageInfo *) NULL);

  assert(image_info->signature == MagickCoreSignature);

  assert(exception != (ExceptionInfo *) NULL);

  assert(exception->signature == MagickCoreSignature);

  if (IsEventLogging() != MagickFalse)

    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",

      image_info->filename);

  image=AcquireImage(image_info,exception);

  image->columns=800;

  image->rows=480;

  type_info=GetTypeInfo(image_info->filename,exception);

  if ((type_info != (const TypeInfo *) NULL) &&

      (type_info->glyphs != (char *) NULL))

    (void) CopyMagickString(image->filename,type_info->glyphs,MagickPathExtent);

  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);

  if (status == MagickFalse)

    {

      image=DestroyImageList(image);

      return((Image *) NULL);

    }

  status=SetImageExtent(image,image->columns,image->rows,exception);

  if (status == MagickFalse)

    return(DestroyImageList(image));

  /*

    Color canvas with background color

  */

  background_color=image_info->background_color;

  for (y=0; y < (ssize_t) image->rows; y++)

  {

    q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);

    if (q == (Quantum *) NULL)

      break;

    for (x=0; x < (ssize_t) image->columns; x++)

    {

      SetPixelViaPixelInfo(image,&background_color,q);

      q+=(ptrdiff_t) GetPixelChannels(image);

    }

    if (SyncAuthenticPixels(image,exception) == MagickFalse)

      break;

  }

  (void) CopyMagickString(image->magick,image_info->magick,MagickPathExtent);

  (void) CopyMagickString(image->filename,image_info->filename,

    MagickPathExtent);

  /*

    Prepare drawing commands

  */

  y=20;

  draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL);

  draw_info->font=AcquireString("");

  (void) ImageToFile(image,draw_info->font,exception);

  ConcatenateString(&draw_info->primitive,"push graphic-context\n");

  (void) FormatLocaleString(buffer,MagickPathExtent,

    " viewbox 0 0 %.20g %.20g\n",(double) image->columns,(double) image->rows);

  ConcatenateString(&draw_info->primitive,buffer);

  ConcatenateString(&draw_info->primitive," font-size 18\n");

  (void) FormatLocaleString(buffer,MagickPathExtent," text 10,%.20g '",

    (double) y);

  ConcatenateString(&draw_info->primitive,buffer);

  text=EscapeString(Text,'"');

  ConcatenateString(&draw_info->primitive,text);

  text=DestroyString(text);

  (void) FormatLocaleString(buffer,MagickPathExtent,"'\n");

  ConcatenateString(&draw_info->primitive,buffer);

  y+=20*(ssize_t) MultilineCensus((char *) Text)+20;

  for (i=12; i <= 72; i+=6)

  {

    y+=i+12;

    ConcatenateString(&draw_info->primitive," font-size 18\n");

    (void) FormatLocaleString(buffer,MagickPathExtent,

      " text 10,%.20g '%.20g'\n",(double) y,(double) i);

    ConcatenateString(&draw_info->primitive,buffer);

    (void) FormatLocaleString(buffer,MagickPathExtent," font-size %.20g\n",

      (double) i);

    ConcatenateString(&draw_info->primitive,buffer);

    (void) FormatLocaleString(buffer,MagickPathExtent," text 50,%.20g "

      "'That which does not destroy me, only makes me stronger.'\n",(double) y);

    ConcatenateString(&draw_info->primitive,buffer);

    if (i >= 24)

      i+=6;

  }

  ConcatenateString(&draw_info->primitive,"pop graphic-context");

  (void) DrawImage(image,draw_info,exception);

  /*

    Relinquish resources.

  */

  (void) RelinquishUniqueFileResource(draw_info->font);

  draw_info=DestroyDrawInfo(draw_info);

  if (CloseBlob(image) == MagickFalse)

    status=MagickFalse;

  if (status == MagickFalse)

    return(DestroyImageList(image));

  return(GetFirstImageInList(image));

}

#endif /* MAGICKCORE_FREETYPE_DELEGATE */

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   R e g i s t e r T T F I m a g e                                           %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  RegisterTTFImage() adds attributes for the TTF image format to

%  the list of supported formats.  The attributes include the image format

%  tag, a method to read and/or write the format, whether the format

%  supports the saving of more than one frame to the same file or blob,

%  whether the format supports native in-memory I/O, and a brief

%  description of the format.

%

%  The format of the RegisterTTFImage method is:

%

%      size_t RegisterTTFImage(void)

%

*/

ModuleExport size_t RegisterTTFImage(void)

{

  char

    version[MagickPathExtent];

  MagickInfo

    *entry;

  *version='\0';

#if defined(FREETYPE_MAJOR) && defined(FREETYPE_MINOR) && defined(FREETYPE_PATCH)

  (void) FormatLocaleString(version,MagickPathExtent,"Freetype %d.%d.%d",

    FREETYPE_MAJOR,FREETYPE_MINOR,FREETYPE_PATCH);

#endif

  entry=AcquireMagickInfo("TTF","DFONT","Multi-face font package");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsTTF;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("TTF","PFA","Postscript Type 1 font (ASCII)");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsPFA;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("TTF","PFB","Postscript Type 1 font (binary)");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsPFA;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("TTF","OTF","Open Type font");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsTTF;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("TTF","TTC","TrueType font collection");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsTTF;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  entry=AcquireMagickInfo("TTF","TTF","TrueType font");

#if defined(MAGICKCORE_FREETYPE_DELEGATE)

  entry->decoder=(DecodeImageHandler *) ReadTTFImage;

#endif

  entry->magick=(IsImageFormatHandler *) IsTTF;

  entry->flags^=CoderAdjoinFlag;

  if (*version != '\0')

    entry->version=ConstantString(version);

  (void) RegisterMagickInfo(entry);

  return(MagickImageCoderSignature);

}

/*

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%                                                                             %

%                                                                             %

%                                                                             %

%   U n r e g i s t e r T T F I m a g e                                       %

%                                                                             %

%                                                                             %

%                                                                             %

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%

%  UnregisterTTFImage() removes format registrations made by the

%  TTF module from the list of supported formats.

%

%  The format of the UnregisterTTFImage method is:

%

%      UnregisterTTFImage(void)

%

*/

ModuleExport void UnregisterTTFImage(void)

{

  (void) UnregisterMagickInfo("TTF");

  (void) UnregisterMagickInfo("TTC");

  (void) UnregisterMagickInfo("OTF");

  (void) UnregisterMagickInfo("PFA");

  (void) UnregisterMagickInfo("PFB");

  (void) UnregisterMagickInfo("PFA");

  (void) UnregisterMagickInfo("DFONT");

}