/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % 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 % % John Cristy % % July 1992 % % % % % % Copyright 1999-2007 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 % % % % http://www.imagemagick.org/script/license.php % % % % 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 "magick/studio.h" #include "magick/blob.h" #include "magick/blob-private.h" #include "magick/draw.h" #include "magick/exception.h" #include "magick/exception-private.h" #include "magick/image.h" #include "magick/image-private.h" #include "magick/list.h" #include "magick/magick.h" #include "magick/memory_.h" #include "magick/quantum-private.h" #include "magick/static.h" #include "magick/string_.h" #include "magick/module.h" #include "magick/type.h" #include "wand/MagickWand.h" #if defined(HasFREETYPE) #if defined(HAVE_FT2BUILD_H) # include #endif #if defined(FT_FREETYPE_H) # include FT_FREETYPE_H #else # include #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: This string is generally the first few bytes of an image file % or blob. % % 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-1.0",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: This string is generally the first few bytes of an image file % or blob. % % 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] == 0x0)) return(MagickTrue); return(MagickFalse); } #if defined(HasFREETYPE) /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % 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[MaxTextExtent]; const char *Text = (char *) "The quick brown fox jumps over the lazy dog 0123456789\n" "ABCDEFGHIJKLMNOPQRSTUVWXYZ &#~\"\\'(-`_^@)=+\260\n" "$\243^\250*\265\371%!\247:/;.,?<> " "\342\352\356\373\364\344\353\357\366\374\377\340\371\351\350\347 "; const TypeInfo *type_info; DrawInfo *draw_info; Image *image; long y; MagickBooleanType status; PixelPacket background_color; register long i, x; register PixelPacket *q; /* Open image file. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AllocateImage(image_info); 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,MaxTextExtent); status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); if (status == MagickFalse) { image=DestroyImageList(image); return((Image *) NULL); } /* Color canvas with background color */ if (SetImageExtent(image,0,0) == MagickFalse) { InheritException(exception,&image->exception); return(DestroyImageList(image)); } background_color=image_info->background_color; for (y=0; y < (long) image->rows; y++) { q=SetImagePixels(image,0,y,image->columns,1); if (q == (PixelPacket *) NULL) break; for (x=0; x < (long) image->columns; x++) *q++=background_color; if (SyncImagePixels(image) == MagickFalse) break; } (void) CopyMagickString(image->magick,image_info->magick,MaxTextExtent); (void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent); /* Prepare drawing commands */ y=20; draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL); draw_info->font=AcquireString(image->filename); ConcatenateString(&draw_info->primitive,"push graphic-context\n"); (void) FormatMagickString(buffer,MaxTextExtent," viewbox 0 0 %lu %lu\n", image->columns,image->rows); ConcatenateString(&draw_info->primitive,buffer); ConcatenateString(&draw_info->primitive," font-size 18\n"); (void) FormatMagickString(buffer,MaxTextExtent," text 10,%ld '",y); ConcatenateString(&draw_info->primitive,buffer); ConcatenateString(&draw_info->primitive,Text); (void) FormatMagickString(buffer,MaxTextExtent,"'\n"); ConcatenateString(&draw_info->primitive,buffer); y+=20*MultilineCensus((char *) Text)+20; for (i=12; i <= 72; i+=6) { y+=i+12; ConcatenateString(&draw_info->primitive," font-size 18\n"); (void) FormatMagickString(buffer,MaxTextExtent," text 10,%ld '%ld'\n",y,i); ConcatenateString(&draw_info->primitive,buffer); (void) FormatMagickString(buffer,MaxTextExtent," font-size %ld\n",i); ConcatenateString(&draw_info->primitive,buffer); (void) FormatMagickString(buffer,MaxTextExtent," text 50,%ld " "'That which does not destroy me, only makes me stronger.'\n",y); ConcatenateString(&draw_info->primitive,buffer); if (i >= 24) i+=6; } ConcatenateString(&draw_info->primitive,"pop graphic-context"); (void) DrawImage(image,draw_info); /* Free resources. */ draw_info=DestroyDrawInfo(draw_info); CloseBlob(image); return(GetFirstImageInList(image)); } #endif /* HasFREETYPE */ /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % 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: % % unsigned long RegisterTTFImage(void) % */ ModuleExport unsigned long RegisterTTFImage(void) { char version[MaxTextExtent]; MagickInfo *entry; *version='\0'; #if defined(FREETYPE_MAJOR) && defined(FREETYPE_MINOR) && defined(FREETYPE_PATCH) (void) FormatMagickString(version,MaxTextExtent,"Freetype %d.%d.%d", FREETYPE_MAJOR,FREETYPE_MINOR,FREETYPE_PATCH); #endif entry=SetMagickInfo("DFONT"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsTTF; entry->adjoin=MagickFalse; entry->description=ConstantString("Multi-face font package"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("PFA"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsPFA; entry->adjoin=MagickFalse; entry->description=ConstantString("Postscript Type 1 font (ASCII)"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("PFB"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsPFA; entry->adjoin=MagickFalse; entry->description=ConstantString("Postscript Type 1 font (binary)"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("OTF"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsTTF; entry->adjoin=MagickFalse; entry->description=ConstantString("Open Type font"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("TTC"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsTTF; entry->adjoin=MagickFalse; entry->description=ConstantString("TrueType font collection"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (void) RegisterMagickInfo(entry); entry=SetMagickInfo("TTF"); #if defined(HasFREETYPE) entry->decoder=(DecodeImageHandler *) ReadTTFImage; #endif entry->magick=(IsImageFormatHandler *) IsTTF; entry->adjoin=MagickFalse; entry->description=ConstantString("TrueType font"); if (*version != '\0') entry->version=ConstantString(version); entry->module=ConstantString("TTF"); (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"); }