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/* |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% % |
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% % |
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% % |
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% AAA N N N N OOO TTTTT AAA TTTTT EEEEE % |
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% A A NN N NN N O O T A A T E % |
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% AAAAA N N N N N N O O T AAAAA T EEE % |
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% A A N NN N NN O O T A A T E % |
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% A A N N N N OOO T A A T EEEEE % |
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% % |
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% % |
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% MagickCore Image Annotation Methods % |
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% % |
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% Software Design % |
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% Cristy % |
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% July 1992 % |
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% % |
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% % |
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% Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization % |
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% dedicated to making software imaging solutions freely available. % |
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% % |
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% You may not use this file except in compliance with the License. You may % |
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% obtain a copy of the License at % |
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% % |
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% http://www.imagemagick.org/script/license.php % |
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% % |
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% Unless required by applicable law or agreed to in writing, software % |
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% distributed under the License is distributed on an "AS IS" BASIS, % |
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
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% See the License for the specific language governing permissions and % |
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% limitations under the License. % |
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% % |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% |
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% Digital Applications (www.digapp.com) contributed the stroked text algorithm. |
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% It was written by Leonard Rosenthol. |
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% |
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% |
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*/ |
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/* |
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Include declarations. |
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*/ |
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#include "MagickCore/studio.h" |
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#include "MagickCore/annotate.h" |
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#include "MagickCore/annotate-private.h" |
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#include "MagickCore/attribute.h" |
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#include "MagickCore/cache-private.h" |
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#include "MagickCore/cache-view.h" |
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#include "MagickCore/channel.h" |
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#include "MagickCore/client.h" |
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#include "MagickCore/color.h" |
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#include "MagickCore/color-private.h" |
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#include "MagickCore/colorspace-private.h" |
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#include "MagickCore/composite.h" |
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#include "MagickCore/composite-private.h" |
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#include "MagickCore/constitute.h" |
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#include "MagickCore/draw.h" |
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#include "MagickCore/draw-private.h" |
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#include "MagickCore/enhance.h" |
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#include "MagickCore/exception.h" |
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#include "MagickCore/exception-private.h" |
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#include "MagickCore/gem.h" |
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#include "MagickCore/geometry.h" |
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#include "MagickCore/image-private.h" |
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#include "MagickCore/log.h" |
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#include "MagickCore/quantum.h" |
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#include "MagickCore/quantum-private.h" |
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#include "MagickCore/pixel-accessor.h" |
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#include "MagickCore/property.h" |
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#include "MagickCore/resource_.h" |
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#include "MagickCore/semaphore.h" |
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#include "MagickCore/statistic.h" |
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#include "MagickCore/string_.h" |
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#include "MagickCore/token.h" |
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#include "MagickCore/token-private.h" |
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#include "MagickCore/transform-private.h" |
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#include "MagickCore/type.h" |
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#include "MagickCore/utility.h" |
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#include "MagickCore/utility-private.h" |
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#include "MagickCore/xwindow.h" |
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#include "MagickCore/xwindow-private.h" |
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#if defined(MAGICKCORE_FREETYPE_DELEGATE) |
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#if defined(__MINGW32__) || defined(__MINGW64__) |
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# undef interface |
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#endif |
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#include <ft2build.h> |
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#if defined(FT_FREETYPE_H) |
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# include FT_FREETYPE_H |
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#else |
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# include <freetype/freetype.h> |
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#endif |
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#if defined(FT_GLYPH_H) |
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# include FT_GLYPH_H |
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#else |
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# include <freetype/ftglyph.h> |
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#endif |
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#if defined(FT_OUTLINE_H) |
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# include FT_OUTLINE_H |
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#else |
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# include <freetype/ftoutln.h> |
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#endif |
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#if defined(FT_BBOX_H) |
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# include FT_BBOX_H |
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#else |
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# include <freetype/ftbbox.h> |
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#endif /* defined(FT_BBOX_H) */ |
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#endif |
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#if defined(MAGICKCORE_RAQM_DELEGATE) |
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#include <raqm.h> |
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#endif |
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typedef struct _GraphemeInfo |
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{ |
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size_t |
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index, |
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x_offset, |
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x_advance, |
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y_offset; |
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|
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size_t |
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cluster; |
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} GraphemeInfo; |
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/* |
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|
Annotate semaphores. |
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*/ |
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static SemaphoreInfo |
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*annotate_semaphore = (SemaphoreInfo *) NULL; |
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|
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/* |
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|
Forward declarations. |
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|
*/ |
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|
static MagickBooleanType |
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RenderType(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
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ExceptionInfo *), |
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RenderPostscript(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
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|
ExceptionInfo *), |
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|
RenderFreetype(Image *,const DrawInfo *,const char *,const PointInfo *, |
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|
TypeMetric *,ExceptionInfo *), |
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|
RenderX11(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
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|
ExceptionInfo *); |
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/* |
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% % |
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% % |
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% % |
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+ A n n o t a t e C o m p o n e n t G e n e s i s % |
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% % |
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% % |
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% % |
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% |
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|
% AnnotateComponentGenesis() instantiates the annotate component. |
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|
% |
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% The format of the AnnotateComponentGenesis method is: |
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|
% |
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|
% MagickBooleanType AnnotateComponentGenesis(void) |
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% |
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*/ |
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|
MagickPrivate MagickBooleanType AnnotateComponentGenesis(void) |
|
|
{ |
|
|
if (annotate_semaphore == (SemaphoreInfo *) NULL) |
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annotate_semaphore=AcquireSemaphoreInfo(); |
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|
return(MagickTrue); |
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|
} |
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|
|
|
|
/* |
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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|
% % |
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|
% % |
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|
% % |
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|
+ 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 % |
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|
% % |
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|
% % |
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|
% % |
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% |
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|
% AnnotateComponentTerminus() destroys the annotate component. |
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% |
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% The format of the AnnotateComponentTerminus method is: |
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% |
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% AnnotateComponentTerminus(void) |
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% |
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*/ |
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MagickPrivate void AnnotateComponentTerminus(void) |
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{ |
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|
if (annotate_semaphore == (SemaphoreInfo *) NULL) |
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ActivateSemaphoreInfo(&annotate_semaphore); |
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RelinquishSemaphoreInfo(&annotate_semaphore); |
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|
} |
|
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|
|
|
/* |
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|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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|
% % |
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|
% % |
|
|
% % |
|
|
% A n n o t a t e I m a g e % |
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% % |
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% % |
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% % |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% |
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|
% AnnotateImage() annotates an image with text. Optionally you can include |
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% any of the following bits of information about the image by embedding |
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|
% the appropriate special characters: |
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% |
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|
% \n newline |
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|
% \r carriage return |
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|
% < less-than character. |
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|
% > greater-than character. |
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|
% & ampersand character. |
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|
% %% a percent sign |
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|
% %b file size of image read in |
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|
% %c comment meta-data property |
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|
% %d directory component of path |
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|
% %e filename extension or suffix |
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|
% %f filename (including suffix) |
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|
% %g layer canvas page geometry (equivalent to "%Wx%H%X%Y") |
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|
% %h current image height in pixels |
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% %i image filename (note: becomes output filename for "info:") |
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|
% %k CALCULATED: number of unique colors |
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|
% %l label meta-data property |
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|
% %m image file format (file magic) |
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|
% %n number of images in current image sequence |
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|
% %o output filename (used for delegates) |
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|
% %p index of image in current image list |
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|
% %q quantum depth (compile-time constant) |
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|
% %r image class and colorspace |
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|
% %s scene number (from input unless re-assigned) |
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|
% %t filename without directory or extension (suffix) |
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|
% %u unique temporary filename (used for delegates) |
|
|
% %w current width in pixels |
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|
% %x x resolution (density) |
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|
% %y y resolution (density) |
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|
% %z image depth (as read in unless modified, image save depth) |
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|
% %A image transparency channel enabled (true/false) |
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|
% %C image compression type |
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|
% %D image GIF dispose method |
|
|
% %G original image size (%wx%h; before any resizes) |
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|
% %H page (canvas) height |
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|
% %M Magick filename (original file exactly as given, including read mods) |
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|
% %O page (canvas) offset ( = %X%Y ) |
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|
% %P page (canvas) size ( = %Wx%H ) |
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|
% %Q image compression quality ( 0 = default ) |
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% %S ?? scenes ?? |
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% %T image time delay (in centi-seconds) |
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|
% %U image resolution units |
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|
% %W page (canvas) width |
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|
% %X page (canvas) x offset (including sign) |
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|
% %Y page (canvas) y offset (including sign) |
|
|
% %Z unique filename (used for delegates) |
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|
% %@ CALCULATED: trim bounding box (without actually trimming) |
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|
% %# CALCULATED: 'signature' hash of image values |
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|
% |
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|
% The format of the AnnotateImage method is: |
|
|
% |
|
|
% MagickBooleanType AnnotateImage(Image *image,DrawInfo *draw_info, |
|
|
% ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
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|
% |
|
|
% o draw_info: the draw info. |
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|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
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|
*/ |
|
|
MagickExport MagickBooleanType AnnotateImage(Image *image, |
|
|
const DrawInfo *draw_info,ExceptionInfo *exception) |
|
|
{ |
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|
char |
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|
primitive[MagickPathExtent], |
|
|
**textlist; |
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|
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|
DrawInfo |
|
|
*annotate, |
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|
*annotate_info; |
|
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GeometryInfo |
|
|
geometry_info; |
|
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|
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|
MagickBooleanType |
|
|
status; |
|
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|
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PointInfo |
|
|
offset; |
|
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|
|
|
RectangleInfo |
|
|
geometry; |
|
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|
|
|
register ssize_t |
|
|
i; |
|
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|
|
|
size_t |
|
|
length; |
|
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|
|
|
TypeMetric |
|
|
metrics; |
|
|
|
|
|
size_t |
|
|
height, |
|
|
number_lines; |
|
|
|
|
|
assert(image != (Image *) NULL); |
|
|
assert(image->signature == MagickCoreSignature); |
|
|
if (image->debug != MagickFalse) |
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
|
|
assert(draw_info != (DrawInfo *) NULL); |
|
|
assert(draw_info->signature == MagickCoreSignature); |
|
|
if (draw_info->text == (char *) NULL) |
|
|
return(MagickFalse); |
|
|
if (*draw_info->text == '\0') |
|
|
return(MagickTrue); |
|
|
textlist=StringToList(draw_info->text); |
|
|
if (textlist == (char **) NULL) |
|
|
return(MagickFalse); |
|
|
length=strlen(textlist[0]); |
|
|
for (i=1; textlist[i] != (char *) NULL; i++) |
|
|
if (strlen(textlist[i]) > length) |
|
|
length=strlen(textlist[i]); |
|
|
number_lines=(size_t) i; |
|
|
annotate=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
SetGeometry(image,&geometry); |
|
|
SetGeometryInfo(&geometry_info); |
|
|
if (annotate_info->geometry != (char *) NULL) |
|
|
{ |
|
|
(void) ParsePageGeometry(image,annotate_info->geometry,&geometry, |
|
|
exception); |
|
|
(void) ParseGeometry(annotate_info->geometry,&geometry_info); |
|
|
} |
|
|
if (SetImageStorageClass(image,DirectClass,exception) == MagickFalse) |
|
|
return(MagickFalse); |
|
|
if (IsGrayColorspace(image->colorspace) != MagickFalse) |
|
|
(void) SetImageColorspace(image,sRGBColorspace,exception); |
|
|
status=MagickTrue; |
|
|
for (i=0; textlist[i] != (char *) NULL; i++) |
|
|
{ |
|
|
/* |
|
|
Position text relative to image. |
|
|
*/ |
|
|
annotate_info->affine.tx=geometry_info.xi-image->page.x; |
|
|
annotate_info->affine.ty=geometry_info.psi-image->page.y; |
|
|
(void) CloneString(&annotate->text,textlist[i]); |
|
|
(void) GetTypeMetrics(image,annotate,&metrics,exception); |
|
|
height=(ssize_t) (metrics.ascent-metrics.descent+ |
|
|
draw_info->interline_spacing+0.5); |
|
|
switch (annotate->gravity) |
|
|
{ |
|
|
case UndefinedGravity: |
|
|
default: |
|
|
{ |
|
|
offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height; |
|
|
offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height; |
|
|
break; |
|
|
} |
|
|
case NorthWestGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i* |
|
|
annotate_info->affine.ry*height+annotate_info->affine.ry* |
|
|
(metrics.ascent+metrics.descent); |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i* |
|
|
annotate_info->affine.sy*height+annotate_info->affine.sy* |
|
|
metrics.ascent; |
|
|
break; |
|
|
} |
|
|
case NorthGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+ |
|
|
geometry.width/2.0+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+ |
|
|
annotate_info->affine.ry*(metrics.ascent+metrics.descent); |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i* |
|
|
annotate_info->affine.sy*height+annotate_info->affine.sy* |
|
|
metrics.ascent-annotate_info->affine.rx*(metrics.width- |
|
|
metrics.bounds.x1)/2.0; |
|
|
break; |
|
|
} |
|
|
case NorthEastGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+ |
|
|
geometry.width+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+ |
|
|
annotate_info->affine.ry*(metrics.ascent+metrics.descent)-1.0; |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+i* |
|
|
annotate_info->affine.sy*height+annotate_info->affine.sy* |
|
|
metrics.ascent-annotate_info->affine.rx*(metrics.width- |
|
|
metrics.bounds.x1); |
|
|
break; |
|
|
} |
|
|
case WestGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i* |
|
|
annotate_info->affine.ry*height+annotate_info->affine.ry* |
|
|
(metrics.ascent+metrics.descent-(number_lines-1.0)*height)/2.0; |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+ |
|
|
geometry.height/2.0+i*annotate_info->affine.sy*height+ |
|
|
annotate_info->affine.sy*(metrics.ascent+metrics.descent- |
|
|
(number_lines-1.0)*height)/2.0; |
|
|
break; |
|
|
} |
|
|
case CenterGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+ |
|
|
geometry.width/2.0+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0+ |
|
|
annotate_info->affine.ry*(metrics.ascent+metrics.descent- |
|
|
(number_lines-1.0)*height)/2.0; |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+ |
|
|
geometry.height/2.0+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0+ |
|
|
annotate_info->affine.sy*(metrics.ascent+metrics.descent- |
|
|
(number_lines-1.0)*height)/2.0; |
|
|
break; |
|
|
} |
|
|
case EastGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+ |
|
|
geometry.width+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)+ |
|
|
annotate_info->affine.ry*(metrics.ascent+metrics.descent- |
|
|
(number_lines-1.0)*height)/2.0-1.0; |
|
|
offset.y=(geometry.height == 0 ? -1.0 : 1.0)*annotate_info->affine.ty+ |
|
|
geometry.height/2.0+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)+ |
|
|
annotate_info->affine.sy*(metrics.ascent+metrics.descent- |
|
|
(number_lines-1.0)*height)/2.0; |
|
|
break; |
|
|
} |
|
|
case SouthWestGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+i* |
|
|
annotate_info->affine.ry*height-annotate_info->affine.ry* |
|
|
(number_lines-1.0)*height; |
|
|
offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+ |
|
|
geometry.height+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent; |
|
|
break; |
|
|
} |
|
|
case SouthGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? -1.0 : 1.0)*annotate_info->affine.tx+ |
|
|
geometry.width/2.0+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0- |
|
|
annotate_info->affine.ry*(number_lines-1.0)*height/2.0; |
|
|
offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+ |
|
|
geometry.height+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0- |
|
|
annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent; |
|
|
break; |
|
|
} |
|
|
case SouthEastGravity: |
|
|
{ |
|
|
offset.x=(geometry.width == 0 ? 1.0 : -1.0)*annotate_info->affine.tx+ |
|
|
geometry.width+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)- |
|
|
annotate_info->affine.ry*(number_lines-1.0)*height-1.0; |
|
|
offset.y=(geometry.height == 0 ? 1.0 : -1.0)*annotate_info->affine.ty+ |
|
|
geometry.height+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)- |
|
|
annotate_info->affine.sy*(number_lines-1.0)*height+metrics.descent; |
|
|
break; |
|
|
} |
|
|
} |
|
|
switch (annotate->align) |
|
|
{ |
|
|
case LeftAlign: |
|
|
{ |
|
|
offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height; |
|
|
offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height; |
|
|
break; |
|
|
} |
|
|
case CenterAlign: |
|
|
{ |
|
|
offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1)/2.0; |
|
|
offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1)/2.0; |
|
|
break; |
|
|
} |
|
|
case RightAlign: |
|
|
{ |
|
|
offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height- |
|
|
annotate_info->affine.sx*(metrics.width+metrics.bounds.x1); |
|
|
offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height- |
|
|
annotate_info->affine.rx*(metrics.width+metrics.bounds.x1); |
|
|
break; |
|
|
} |
|
|
default: |
|
|
break; |
|
|
} |
|
|
if (draw_info->undercolor.alpha != TransparentAlpha) |
|
|
{ |
|
|
DrawInfo |
|
|
*undercolor_info; |
|
|
|
|
|
/* |
|
|
Text box. |
|
|
*/ |
|
|
undercolor_info=CloneDrawInfo((ImageInfo *) NULL,(DrawInfo *) NULL); |
|
|
undercolor_info->fill=draw_info->undercolor; |
|
|
undercolor_info->affine=draw_info->affine; |
|
|
undercolor_info->affine.tx=offset.x-draw_info->affine.ry*metrics.ascent; |
|
|
undercolor_info->affine.ty=offset.y-draw_info->affine.sy*metrics.ascent; |
|
|
(void) FormatLocaleString(primitive,MagickPathExtent, |
|
|
"rectangle 0.0,0.0 %g,%g",metrics.origin.x,(double) height); |
|
|
(void) CloneString(&undercolor_info->primitive,primitive); |
|
|
(void) DrawImage(image,undercolor_info,exception); |
|
|
(void) DestroyDrawInfo(undercolor_info); |
|
|
} |
|
|
annotate_info->affine.tx=offset.x; |
|
|
annotate_info->affine.ty=offset.y; |
|
|
(void) FormatLocaleString(primitive,MagickPathExtent,"stroke-width %g " |
|
|
"line 0,0 %g,0",metrics.underline_thickness,metrics.width); |
|
|
if (annotate->decorate == OverlineDecoration) |
|
|
{ |
|
|
annotate_info->affine.ty-=(draw_info->affine.sy*(metrics.ascent+ |
|
|
metrics.descent-metrics.underline_position)); |
|
|
(void) CloneString(&annotate_info->primitive,primitive); |
|
|
(void) DrawImage(image,annotate_info,exception); |
|
|
} |
|
|
else |
|
|
if (annotate->decorate == UnderlineDecoration) |
|
|
{ |
|
|
annotate_info->affine.ty-=(draw_info->affine.sy* |
|
|
metrics.underline_position); |
|
|
(void) CloneString(&annotate_info->primitive,primitive); |
|
|
(void) DrawImage(image,annotate_info,exception); |
|
|
} |
|
|
/* |
|
|
Annotate image with text. |
|
|
*/ |
|
|
status=RenderType(image,annotate,&offset,&metrics,exception); |
|
|
if (status == MagickFalse) |
|
|
break; |
|
|
if (annotate->decorate == LineThroughDecoration) |
|
|
{ |
|
|
annotate_info->affine.ty-=(draw_info->affine.sy*(height+ |
|
|
metrics.underline_position+metrics.descent)/2.0); |
|
|
(void) CloneString(&annotate_info->primitive,primitive); |
|
|
(void) DrawImage(image,annotate_info,exception); |
|
|
} |
|
|
} |
|
|
/* |
|
|
Relinquish resources. |
|
|
*/ |
|
|
annotate_info=DestroyDrawInfo(annotate_info); |
|
|
annotate=DestroyDrawInfo(annotate); |
|
|
for (i=0; textlist[i] != (char *) NULL; i++) |
|
|
textlist[i]=DestroyString(textlist[i]); |
|
|
textlist=(char **) RelinquishMagickMemory(textlist); |
|
|
return(status); |
|
|
} |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
% F o r m a t M a g i c k C a p t i o n % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% FormatMagickCaption() formats a caption so that it fits within the image |
|
|
% width. It returns the number of lines in the formatted caption. |
|
|
% |
|
|
% The format of the FormatMagickCaption method is: |
|
|
% |
|
|
% ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info, |
|
|
% const MagickBooleanType split,TypeMetric *metrics,char **caption, |
|
|
% ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows. |
|
|
% |
|
|
% o image: The image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o split: when no convenient line breaks-- insert newline. |
|
|
% |
|
|
% o metrics: Return the font metrics in this structure. |
|
|
% |
|
|
% o caption: the caption. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
MagickExport ssize_t FormatMagickCaption(Image *image,DrawInfo *draw_info, |
|
|
const MagickBooleanType split,TypeMetric *metrics,char **caption, |
|
|
ExceptionInfo *exception) |
|
|
{ |
|
|
char |
|
|
*text; |
|
|
|
|
|
MagickBooleanType |
|
|
digit, |
|
|
status; |
|
|
|
|
|
register char |
|
|
*p, |
|
|
*q, |
|
|
*s; |
|
|
|
|
|
register ssize_t |
|
|
i; |
|
|
|
|
|
size_t |
|
|
width; |
|
|
|
|
|
ssize_t |
|
|
n; |
|
|
|
|
|
digit=MagickFalse; |
|
|
text=AcquireString(draw_info->text); |
|
|
q=draw_info->text; |
|
|
s=(char *) NULL; |
|
|
for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p)) |
|
|
{ |
|
|
if ((digit == MagickFalse) && (IsUTFSpace(GetUTFCode(p)) != MagickFalse)) |
|
|
s=p; |
|
|
digit=((GetUTFCode(p) >= 0x0030) && (GetUTFCode(p) <= 0x0039)) ? |
|
|
MagickTrue : MagickFalse; |
|
|
if (GetUTFCode(p) == '\n') |
|
|
q=draw_info->text; |
|
|
for (i=0; i < (ssize_t) GetUTFOctets(p); i++) |
|
|
*q++=(*(p+i)); |
|
|
*q='\0'; |
|
|
status=GetTypeMetrics(image,draw_info,metrics,exception); |
|
|
if (status == MagickFalse) |
|
|
break; |
|
|
width=(size_t) floor(metrics->width+draw_info->stroke_width+0.5); |
|
|
if ((width <= image->columns) || (strcmp(text,draw_info->text) == 0)) |
|
|
continue; |
|
|
(void) strcpy(text,draw_info->text); |
|
|
if ((s != (char *) NULL) && (GetUTFOctets(s) == 1)) |
|
|
{ |
|
|
*s='\n'; |
|
|
p=s; |
|
|
} |
|
|
else |
|
|
if ((s != (char *) NULL) || (split != MagickFalse)) |
|
|
{ |
|
|
char |
|
|
*target; |
|
|
|
|
|
/* |
|
|
No convenient line breaks-- insert newline. |
|
|
*/ |
|
|
target=AcquireString(*caption); |
|
|
n=p-(*caption); |
|
|
CopyMagickString(target,*caption,n+1); |
|
|
ConcatenateMagickString(target,"\n",strlen(*caption)+1); |
|
|
ConcatenateMagickString(target,p,strlen(*caption)+2); |
|
|
(void) DestroyString(*caption); |
|
|
*caption=target; |
|
|
p=(*caption)+n; |
|
|
} |
|
|
q=draw_info->text; |
|
|
s=(char *) NULL; |
|
|
} |
|
|
text=DestroyString(text); |
|
|
n=0; |
|
|
for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p)) |
|
|
if (GetUTFCode(p) == '\n') |
|
|
n++; |
|
|
return(n); |
|
|
} |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
% G e t M u l t i l i n e T y p e M e t r i c s % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% GetMultilineTypeMetrics() returns the following information for the |
|
|
% specified font and text: |
|
|
% |
|
|
% character width |
|
|
% character height |
|
|
% ascender |
|
|
% descender |
|
|
% text width |
|
|
% text height |
|
|
% maximum horizontal advance |
|
|
% bounds: x1 |
|
|
% bounds: y1 |
|
|
% bounds: x2 |
|
|
% bounds: y2 |
|
|
% origin: x |
|
|
% origin: y |
|
|
% underline position |
|
|
% underline thickness |
|
|
% |
|
|
% This method is like GetTypeMetrics() but it returns the maximum text width |
|
|
% and height for multiple lines of text. |
|
|
% |
|
|
% The format of the GetMultilineTypeMetrics method is: |
|
|
% |
|
|
% MagickBooleanType GetMultilineTypeMetrics(Image *image, |
|
|
% const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o metrics: Return the font metrics in this structure. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
MagickExport MagickBooleanType GetMultilineTypeMetrics(Image *image, |
|
|
const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
{ |
|
|
char |
|
|
**textlist; |
|
|
|
|
|
DrawInfo |
|
|
*annotate_info; |
|
|
|
|
|
MagickBooleanType |
|
|
status; |
|
|
|
|
|
register ssize_t |
|
|
i; |
|
|
|
|
|
TypeMetric |
|
|
extent; |
|
|
|
|
|
assert(image != (Image *) NULL); |
|
|
assert(image->signature == MagickCoreSignature); |
|
|
if (image->debug != MagickFalse) |
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
|
|
assert(draw_info != (DrawInfo *) NULL); |
|
|
assert(draw_info->text != (char *) NULL); |
|
|
assert(draw_info->signature == MagickCoreSignature); |
|
|
if (*draw_info->text == '\0') |
|
|
return(MagickFalse); |
|
|
annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
annotate_info->text=DestroyString(annotate_info->text); |
|
|
/* |
|
|
Convert newlines to multiple lines of text. |
|
|
*/ |
|
|
textlist=StringToList(draw_info->text); |
|
|
if (textlist == (char **) NULL) |
|
|
return(MagickFalse); |
|
|
annotate_info->render=MagickFalse; |
|
|
annotate_info->direction=UndefinedDirection; |
|
|
(void) ResetMagickMemory(metrics,0,sizeof(*metrics)); |
|
|
(void) ResetMagickMemory(&extent,0,sizeof(extent)); |
|
|
/* |
|
|
Find the widest of the text lines. |
|
|
*/ |
|
|
annotate_info->text=textlist[0]; |
|
|
status=GetTypeMetrics(image,annotate_info,&extent,exception); |
|
|
*metrics=extent; |
|
|
for (i=1; textlist[i] != (char *) NULL; i++) |
|
|
{ |
|
|
annotate_info->text=textlist[i]; |
|
|
status=GetTypeMetrics(image,annotate_info,&extent,exception); |
|
|
if (extent.width > metrics->width) |
|
|
*metrics=extent; |
|
|
} |
|
|
metrics->height=(double) (i*(size_t) (metrics->ascent-metrics->descent+0.5)+ |
|
|
(i-1)*draw_info->interline_spacing); |
|
|
/* |
|
|
Relinquish resources. |
|
|
*/ |
|
|
annotate_info->text=(char *) NULL; |
|
|
annotate_info=DestroyDrawInfo(annotate_info); |
|
|
for (i=0; textlist[i] != (char *) NULL; i++) |
|
|
textlist[i]=DestroyString(textlist[i]); |
|
|
textlist=(char **) RelinquishMagickMemory(textlist); |
|
|
return(status); |
|
|
} |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
% G e t T y p e M e t r i c s % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% GetTypeMetrics() returns the following information for the specified font |
|
|
% and text: |
|
|
% |
|
|
% character width |
|
|
% character height |
|
|
% ascender |
|
|
% descender |
|
|
% text width |
|
|
% text height |
|
|
% maximum horizontal advance |
|
|
% bounds: x1 |
|
|
% bounds: y1 |
|
|
% bounds: x2 |
|
|
% bounds: y2 |
|
|
% origin: x |
|
|
% origin: y |
|
|
% underline position |
|
|
% underline thickness |
|
|
% |
|
|
% The format of the GetTypeMetrics method is: |
|
|
% |
|
|
% MagickBooleanType GetTypeMetrics(Image *image,const DrawInfo *draw_info, |
|
|
% TypeMetric *metrics,ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o metrics: Return the font metrics in this structure. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
MagickExport MagickBooleanType GetTypeMetrics(Image *image, |
|
|
const DrawInfo *draw_info,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
{ |
|
|
DrawInfo |
|
|
*annotate_info; |
|
|
|
|
|
MagickBooleanType |
|
|
status; |
|
|
|
|
|
PointInfo |
|
|
offset; |
|
|
|
|
|
assert(image != (Image *) NULL); |
|
|
assert(image->signature == MagickCoreSignature); |
|
|
if (image->debug != MagickFalse) |
|
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
|
|
assert(draw_info != (DrawInfo *) NULL); |
|
|
assert(draw_info->text != (char *) NULL); |
|
|
assert(draw_info->signature == MagickCoreSignature); |
|
|
annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
annotate_info->render=MagickFalse; |
|
|
annotate_info->direction=UndefinedDirection; |
|
|
(void) ResetMagickMemory(metrics,0,sizeof(*metrics)); |
|
|
offset.x=0.0; |
|
|
offset.y=0.0; |
|
|
status=RenderType(image,annotate_info,&offset,metrics,exception); |
|
|
if (image->debug != MagickFalse) |
|
|
(void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Metrics: text: %s; " |
|
|
"width: %g; height: %g; ascent: %g; descent: %g; max advance: %g; " |
|
|
"bounds: %g,%g %g,%g; origin: %g,%g; pixels per em: %g,%g; " |
|
|
"underline position: %g; underline thickness: %g",annotate_info->text, |
|
|
metrics->width,metrics->height,metrics->ascent,metrics->descent, |
|
|
metrics->max_advance,metrics->bounds.x1,metrics->bounds.y1, |
|
|
metrics->bounds.x2,metrics->bounds.y2,metrics->origin.x,metrics->origin.y, |
|
|
metrics->pixels_per_em.x,metrics->pixels_per_em.y, |
|
|
metrics->underline_position,metrics->underline_thickness); |
|
|
annotate_info=DestroyDrawInfo(annotate_info); |
|
|
return(status); |
|
|
} |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
+ R e n d e r T y p e % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% RenderType() renders text on the image. It also returns the bounding box of |
|
|
% the text relative to the image. |
|
|
% |
|
|
% The format of the RenderType method is: |
|
|
% |
|
|
% MagickBooleanType RenderType(Image *image,DrawInfo *draw_info, |
|
|
% const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o offset: (x,y) location of text relative to image. |
|
|
% |
|
|
% o metrics: bounding box of text. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
static MagickBooleanType RenderType(Image *image,const DrawInfo *draw_info, |
|
|
const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
{ |
|
|
const TypeInfo |
|
|
*type_info; |
|
|
|
|
|
DrawInfo |
|
|
*annotate_info; |
|
|
|
|
|
MagickBooleanType |
|
|
status; |
|
|
|
|
|
type_info=(const TypeInfo *) NULL; |
|
|
if (draw_info->font != (char *) NULL) |
|
|
{ |
|
|
if (*draw_info->font == '@') |
|
|
{ |
|
|
status=RenderFreetype(image,draw_info,draw_info->encoding,offset, |
|
|
metrics,exception); |
|
|
return(status); |
|
|
} |
|
|
if (*draw_info->font == '-') |
|
|
return(RenderX11(image,draw_info,offset,metrics,exception)); |
|
|
if (IsPathAccessible(draw_info->font) != MagickFalse) |
|
|
{ |
|
|
status=RenderFreetype(image,draw_info,draw_info->encoding,offset, |
|
|
metrics,exception); |
|
|
return(status); |
|
|
} |
|
|
type_info=GetTypeInfo(draw_info->font,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
(void) ThrowMagickException(exception,GetMagickModule(),TypeWarning, |
|
|
"UnableToReadFont","`%s'",draw_info->font); |
|
|
} |
|
|
if ((type_info == (const TypeInfo *) NULL) && |
|
|
(draw_info->family != (const char *) NULL)) |
|
|
{ |
|
|
type_info=GetTypeInfoByFamily(draw_info->family,draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
(void) ThrowMagickException(exception,GetMagickModule(),TypeWarning, |
|
|
"UnableToReadFont","`%s'",draw_info->family); |
|
|
} |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfoByFamily("Arial",draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfoByFamily("Helvetica",draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfoByFamily("Century Schoolbook",draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfoByFamily("Sans",draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfoByFamily((const char *) NULL,draw_info->style, |
|
|
draw_info->stretch,draw_info->weight,exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
type_info=GetTypeInfo("*",exception); |
|
|
if (type_info == (const TypeInfo *) NULL) |
|
|
{ |
|
|
status=RenderFreetype(image,draw_info,draw_info->encoding,offset,metrics, |
|
|
exception); |
|
|
return(status); |
|
|
} |
|
|
annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
annotate_info->face=type_info->face; |
|
|
if (type_info->metrics != (char *) NULL) |
|
|
(void) CloneString(&annotate_info->metrics,type_info->metrics); |
|
|
if (type_info->glyphs != (char *) NULL) |
|
|
(void) CloneString(&annotate_info->font,type_info->glyphs); |
|
|
status=RenderFreetype(image,annotate_info,type_info->encoding,offset,metrics, |
|
|
exception); |
|
|
annotate_info=DestroyDrawInfo(annotate_info); |
|
|
return(status); |
|
|
} |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
+ R e n d e r F r e e t y p e % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% RenderFreetype() renders text on the image with a Truetype font. It also |
|
|
% returns the bounding box of the text relative to the image. |
|
|
% |
|
|
% The format of the RenderFreetype method is: |
|
|
% |
|
|
% MagickBooleanType RenderFreetype(Image *image,DrawInfo *draw_info, |
|
|
% const char *encoding,const PointInfo *offset,TypeMetric *metrics, |
|
|
% ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o encoding: the font encoding. |
|
|
% |
|
|
% o offset: (x,y) location of text relative to image. |
|
|
% |
|
|
% o metrics: bounding box of text. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
|
|
|
#if defined(MAGICKCORE_FREETYPE_DELEGATE) |
|
|
|
|
|
static size_t ComplexTextLayout(const Image *image,const DrawInfo *draw_info, |
|
|
const char *text,const size_t length,const FT_Face face,const FT_Int32 flags, |
|
|
GraphemeInfo **grapheme,ExceptionInfo *exception) |
|
|
{ |
|
|
#if defined(MAGICKCORE_RAQM_DELEGATE) |
|
|
const char |
|
|
*features; |
|
|
|
|
|
raqm_t |
|
|
*rq; |
|
|
|
|
|
raqm_glyph_t |
|
|
*glyphs; |
|
|
|
|
|
register size_t |
|
|
i; |
|
|
|
|
|
size_t |
|
|
extent; |
|
|
|
|
|
extent=0; |
|
|
rq=raqm_create(); |
|
|
if (rq == (raqm_t *) NULL) |
|
|
goto cleanup; |
|
|
if (raqm_set_text_utf8(rq,text,length) == 0) |
|
|
goto cleanup; |
|
|
if (raqm_set_par_direction(rq,(raqm_direction_t) draw_info->direction) == 0) |
|
|
goto cleanup; |
|
|
if (raqm_set_freetype_face(rq,face) == 0) |
|
|
goto cleanup; |
|
|
features=GetImageProperty(image,"type:features",exception); |
|
|
if (features != (const char *) NULL) |
|
|
{ |
|
|
char |
|
|
breaker, |
|
|
quote, |
|
|
*token; |
|
|
|
|
|
int |
|
|
next, |
|
|
status_token; |
|
|
|
|
|
TokenInfo |
|
|
*token_info; |
|
|
|
|
|
next=0; |
|
|
token_info=AcquireTokenInfo(); |
|
|
token=AcquireString(""); |
|
|
status_token=Tokenizer(token_info,0,token,50,features,"",",","",'\0', |
|
|
&breaker,&next,"e); |
|
|
while (status_token == 0) |
|
|
{ |
|
|
raqm_add_font_feature(rq,token,strlen(token)); |
|
|
status_token=Tokenizer(token_info,0,token,50,features,"",",","",'\0', |
|
|
&breaker,&next,"e); |
|
|
} |
|
|
token_info=DestroyTokenInfo(token_info); |
|
|
token=DestroyString(token); |
|
|
} |
|
|
if (raqm_layout(rq) == 0) |
|
|
goto cleanup; |
|
|
glyphs=raqm_get_glyphs(rq,&extent); |
|
|
if (glyphs == (raqm_glyph_t *) NULL) |
|
|
{ |
|
|
extent=0; |
|
|
goto cleanup; |
|
|
} |
|
|
*grapheme=(GraphemeInfo *) AcquireQuantumMemory(extent,sizeof(**grapheme)); |
|
|
if (*grapheme == (GraphemeInfo *) NULL) |
|
|
{ |
|
|
extent=0; |
|
|
goto cleanup; |
|
|
} |
|
|
for (i=0; i < (ssize_t) extent; i++) |
|
|
{ |
|
|
(*grapheme)[i].index=glyphs[i].index; |
|
|
(*grapheme)[i].x_offset=glyphs[i].x_offset; |
|
|
(*grapheme)[i].x_advance=glyphs[i].x_advance; |
|
|
(*grapheme)[i].y_offset=glyphs[i].y_offset; |
|
|
(*grapheme)[i].cluster=glyphs[i].cluster; |
|
|
} |
|
|
|
|
|
cleanup: |
|
|
raqm_destroy(rq); |
|
|
return(extent); |
|
|
#else |
|
|
const char |
|
|
*p; |
|
|
|
|
|
FT_Error |
|
|
ft_status; |
|
|
|
|
|
register ssize_t |
|
|
i; |
|
|
|
|
|
ssize_t |
|
|
last_glyph; |
|
|
|
|
|
magick_unreferenced(exception); |
|
|
|
|
|
/* |
|
|
Simple layout for bi-directional text (right-to-left or left-to-right). |
|
|
*/ |
|
|
*grapheme=(GraphemeInfo *) AcquireQuantumMemory(length+1,sizeof(**grapheme)); |
|
|
if (*grapheme == (GraphemeInfo *) NULL) |
|
|
return(0); |
|
|
last_glyph=0; |
|
|
p=text; |
|
|
for (i=0; GetUTFCode(p) != 0; p+=GetUTFOctets(p), i++) |
|
|
{ |
|
|
(*grapheme)[i].index=(ssize_t) FT_Get_Char_Index(face,GetUTFCode(p)); |
|
|
(*grapheme)[i].x_offset=0; |
|
|
(*grapheme)[i].y_offset=0; |
|
|
if (((*grapheme)[i].index != 0) && (last_glyph != 0)) |
|
|
{ |
|
|
if (FT_HAS_KERNING(face)) |
|
|
{ |
|
|
FT_Vector |
|
|
kerning; |
|
|
|
|
|
ft_status=FT_Get_Kerning(face,(FT_UInt) last_glyph,(FT_UInt) |
|
|
(*grapheme)[i].index,ft_kerning_default,&kerning); |
|
|
if (ft_status == 0) |
|
|
(*grapheme)[i-1].x_advance+=(FT_Pos) ((draw_info->direction == |
|
|
RightToLeftDirection ? -1.0 : 1.0)*kerning.x); |
|
|
} |
|
|
} |
|
|
ft_status=FT_Load_Glyph(face,(FT_UInt) (*grapheme)[i].index,flags); |
|
|
(*grapheme)[i].x_advance=face->glyph->advance.x; |
|
|
(*grapheme)[i].cluster=p-text; |
|
|
last_glyph=(*grapheme)[i].index; |
|
|
} |
|
|
return((size_t) i); |
|
|
#endif |
|
|
} |
|
|
|
|
|
static int TraceCubicBezier(FT_Vector *p,FT_Vector *q,FT_Vector *to, |
|
|
DrawInfo *draw_info) |
|
|
{ |
|
|
AffineMatrix |
|
|
affine; |
|
|
|
|
|
char |
|
|
path[MagickPathExtent]; |
|
|
|
|
|
affine=draw_info->affine; |
|
|
(void) FormatLocaleString(path,MagickPathExtent,"C%g,%g %g,%g %g,%g", |
|
|
affine.tx+p->x/64.0,affine.ty-p->y/64.0,affine.tx+q->x/64.0,affine.ty- |
|
|
q->y/64.0,affine.tx+to->x/64.0,affine.ty-to->y/64.0); |
|
|
(void) ConcatenateString(&draw_info->primitive,path); |
|
|
return(0); |
|
|
} |
|
|
|
|
|
static int TraceLineTo(FT_Vector *to,DrawInfo *draw_info) |
|
|
{ |
|
|
AffineMatrix |
|
|
affine; |
|
|
|
|
|
char |
|
|
path[MagickPathExtent]; |
|
|
|
|
|
affine=draw_info->affine; |
|
|
(void) FormatLocaleString(path,MagickPathExtent,"L%g,%g",affine.tx+to->x/64.0, |
|
|
affine.ty-to->y/64.0); |
|
|
(void) ConcatenateString(&draw_info->primitive,path); |
|
|
return(0); |
|
|
} |
|
|
|
|
|
static int TraceMoveTo(FT_Vector *to,DrawInfo *draw_info) |
|
|
{ |
|
|
AffineMatrix |
|
|
affine; |
|
|
|
|
|
char |
|
|
path[MagickPathExtent]; |
|
|
|
|
|
affine=draw_info->affine; |
|
|
(void) FormatLocaleString(path,MagickPathExtent,"M%g,%g",affine.tx+to->x/64.0, |
|
|
affine.ty-to->y/64.0); |
|
|
(void) ConcatenateString(&draw_info->primitive,path); |
|
|
return(0); |
|
|
} |
|
|
|
|
|
static int TraceQuadraticBezier(FT_Vector *control,FT_Vector *to, |
|
|
DrawInfo *draw_info) |
|
|
{ |
|
|
AffineMatrix |
|
|
affine; |
|
|
|
|
|
char |
|
|
path[MagickPathExtent]; |
|
|
|
|
|
affine=draw_info->affine; |
|
|
(void) FormatLocaleString(path,MagickPathExtent,"Q%g,%g %g,%g",affine.tx+ |
|
|
control->x/64.0,affine.ty-control->y/64.0,affine.tx+to->x/64.0,affine.ty- |
|
|
to->y/64.0); |
|
|
(void) ConcatenateString(&draw_info->primitive,path); |
|
|
return(0); |
|
|
} |
|
|
|
|
|
static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info, |
|
|
const char *encoding,const PointInfo *offset,TypeMetric *metrics, |
|
|
ExceptionInfo *exception) |
|
|
{ |
|
|
#if !defined(FT_OPEN_PATHNAME) |
|
|
#define FT_OPEN_PATHNAME ft_open_pathname |
|
|
#endif |
|
|
|
|
|
typedef struct _GlyphInfo |
|
|
{ |
|
|
FT_UInt |
|
|
id; |
|
|
|
|
|
FT_Vector |
|
|
origin; |
|
|
|
|
|
FT_Glyph |
|
|
image; |
|
|
} GlyphInfo; |
|
|
|
|
|
const char |
|
|
*value; |
|
|
|
|
|
DrawInfo |
|
|
*annotate_info; |
|
|
|
|
|
FT_BBox |
|
|
bounds; |
|
|
|
|
|
FT_BitmapGlyph |
|
|
bitmap; |
|
|
|
|
|
FT_Encoding |
|
|
encoding_type; |
|
|
|
|
|
FT_Error |
|
|
ft_status; |
|
|
|
|
|
FT_Face |
|
|
face; |
|
|
|
|
|
FT_Int32 |
|
|
flags; |
|
|
|
|
|
FT_Library |
|
|
library; |
|
|
|
|
|
FT_Matrix |
|
|
affine; |
|
|
|
|
|
FT_Open_Args |
|
|
args; |
|
|
|
|
|
FT_Vector |
|
|
origin; |
|
|
|
|
|
GlyphInfo |
|
|
glyph, |
|
|
last_glyph; |
|
|
|
|
|
GraphemeInfo |
|
|
*grapheme; |
|
|
|
|
|
MagickBooleanType |
|
|
status; |
|
|
|
|
|
PointInfo |
|
|
point, |
|
|
resolution; |
|
|
|
|
|
register char |
|
|
*p; |
|
|
|
|
|
register ssize_t |
|
|
i; |
|
|
|
|
|
size_t |
|
|
length; |
|
|
|
|
|
ssize_t |
|
|
code, |
|
|
y; |
|
|
|
|
|
static FT_Outline_Funcs |
|
|
OutlineMethods = |
|
|
{ |
|
|
(FT_Outline_MoveTo_Func) TraceMoveTo, |
|
|
(FT_Outline_LineTo_Func) TraceLineTo, |
|
|
(FT_Outline_ConicTo_Func) TraceQuadraticBezier, |
|
|
(FT_Outline_CubicTo_Func) TraceCubicBezier, |
|
|
0, 0 |
|
|
}; |
|
|
|
|
|
unsigned char |
|
|
*utf8; |
|
|
|
|
|
/* |
|
|
Initialize Truetype library. |
|
|
*/ |
|
|
ft_status=FT_Init_FreeType(&library); |
|
|
if (ft_status != 0) |
|
|
ThrowBinaryException(TypeError,"UnableToInitializeFreetypeLibrary", |
|
|
image->filename); |
|
|
args.flags=FT_OPEN_PATHNAME; |
|
|
if (draw_info->font == (char *) NULL) |
|
|
args.pathname=ConstantString("helvetica"); |
|
|
else |
|
|
if (*draw_info->font != '@') |
|
|
args.pathname=ConstantString(draw_info->font); |
|
|
else |
|
|
args.pathname=ConstantString(draw_info->font+1); |
|
|
face=(FT_Face) NULL; |
|
|
ft_status=FT_Open_Face(library,&args,(long) draw_info->face,&face); |
|
|
args.pathname=DestroyString(args.pathname); |
|
|
if (ft_status != 0) |
|
|
{ |
|
|
(void) FT_Done_FreeType(library); |
|
|
(void) ThrowMagickException(exception,GetMagickModule(),TypeError, |
|
|
"UnableToReadFont","`%s'",draw_info->font); |
|
|
return(RenderPostscript(image,draw_info,offset,metrics,exception)); |
|
|
} |
|
|
if ((draw_info->metrics != (char *) NULL) && |
|
|
(IsPathAccessible(draw_info->metrics) != MagickFalse)) |
|
|
(void) FT_Attach_File(face,draw_info->metrics); |
|
|
encoding_type=ft_encoding_unicode; |
|
|
ft_status=FT_Select_Charmap(face,encoding_type); |
|
|
if ((ft_status != 0) && (face->num_charmaps != 0)) |
|
|
ft_status=FT_Set_Charmap(face,face->charmaps[0]); |
|
|
if (encoding != (const char *) NULL) |
|
|
{ |
|
|
if (LocaleCompare(encoding,"AdobeCustom") == 0) |
|
|
encoding_type=ft_encoding_adobe_custom; |
|
|
if (LocaleCompare(encoding,"AdobeExpert") == 0) |
|
|
encoding_type=ft_encoding_adobe_expert; |
|
|
if (LocaleCompare(encoding,"AdobeStandard") == 0) |
|
|
encoding_type=ft_encoding_adobe_standard; |
|
|
if (LocaleCompare(encoding,"AppleRoman") == 0) |
|
|
encoding_type=ft_encoding_apple_roman; |
|
|
if (LocaleCompare(encoding,"BIG5") == 0) |
|
|
encoding_type=ft_encoding_big5; |
|
|
if (LocaleCompare(encoding,"GB2312") == 0) |
|
|
encoding_type=ft_encoding_gb2312; |
|
|
if (LocaleCompare(encoding,"Johab") == 0) |
|
|
encoding_type=ft_encoding_johab; |
|
|
#if defined(ft_encoding_latin_1) |
|
|
if (LocaleCompare(encoding,"Latin-1") == 0) |
|
|
encoding_type=ft_encoding_latin_1; |
|
|
#endif |
|
|
if (LocaleCompare(encoding,"Latin-2") == 0) |
|
|
encoding_type=ft_encoding_latin_2; |
|
|
if (LocaleCompare(encoding,"None") == 0) |
|
|
encoding_type=ft_encoding_none; |
|
|
if (LocaleCompare(encoding,"SJIScode") == 0) |
|
|
encoding_type=ft_encoding_sjis; |
|
|
if (LocaleCompare(encoding,"Symbol") == 0) |
|
|
encoding_type=ft_encoding_symbol; |
|
|
if (LocaleCompare(encoding,"Unicode") == 0) |
|
|
encoding_type=ft_encoding_unicode; |
|
|
if (LocaleCompare(encoding,"Wansung") == 0) |
|
|
encoding_type=ft_encoding_wansung; |
|
|
ft_status=FT_Select_Charmap(face,encoding_type); |
|
|
if (ft_status != 0) |
|
|
{ |
|
|
(void) FT_Done_Face(face); |
|
|
(void) FT_Done_FreeType(library); |
|
|
ThrowBinaryException(TypeError,"UnrecognizedFontEncoding",encoding); |
|
|
} |
|
|
} |
|
|
/* |
|
|
Set text size. |
|
|
*/ |
|
|
resolution.x=DefaultResolution; |
|
|
resolution.y=DefaultResolution; |
|
|
if (draw_info->density != (char *) NULL) |
|
|
{ |
|
|
GeometryInfo |
|
|
geometry_info; |
|
|
|
|
|
MagickStatusType |
|
|
flags; |
|
|
|
|
|
flags=ParseGeometry(draw_info->density,&geometry_info); |
|
|
resolution.x=geometry_info.rho; |
|
|
resolution.y=geometry_info.sigma; |
|
|
if ((flags & SigmaValue) == 0) |
|
|
resolution.y=resolution.x; |
|
|
} |
|
|
ft_status=FT_Set_Char_Size(face,(FT_F26Dot6) (64.0*draw_info->pointsize), |
|
|
(FT_F26Dot6) (64.0*draw_info->pointsize),(FT_UInt) resolution.x, |
|
|
(FT_UInt) resolution.y); |
|
|
if (ft_status != 0) |
|
|
{ |
|
|
(void) FT_Done_Face(face); |
|
|
(void) FT_Done_FreeType(library); |
|
|
ThrowBinaryException(TypeError,"UnableToReadFont",draw_info->font); |
|
|
} |
|
|
metrics->pixels_per_em.x=face->size->metrics.x_ppem; |
|
|
metrics->pixels_per_em.y=face->size->metrics.y_ppem; |
|
|
metrics->ascent=(double) face->size->metrics.ascender/64.0; |
|
|
metrics->descent=(double) face->size->metrics.descender/64.0; |
|
|
metrics->width=0; |
|
|
metrics->origin.x=0; |
|
|
metrics->origin.y=0; |
|
|
metrics->height=(double) face->size->metrics.height/64.0; |
|
|
metrics->max_advance=0.0; |
|
|
if (face->size->metrics.max_advance > MagickEpsilon) |
|
|
metrics->max_advance=(double) face->size->metrics.max_advance/64.0; |
|
|
metrics->bounds.x1=0.0; |
|
|
metrics->bounds.y1=metrics->descent; |
|
|
metrics->bounds.x2=metrics->ascent+metrics->descent; |
|
|
metrics->bounds.y2=metrics->ascent+metrics->descent; |
|
|
metrics->underline_position=face->underline_position/64.0; |
|
|
metrics->underline_thickness=face->underline_thickness/64.0; |
|
|
if ((draw_info->text == (char *) NULL) || (*draw_info->text == '\0')) |
|
|
{ |
|
|
(void) FT_Done_Face(face); |
|
|
(void) FT_Done_FreeType(library); |
|
|
return(MagickTrue); |
|
|
} |
|
|
/* |
|
|
Compute bounding box. |
|
|
*/ |
|
|
if (image->debug != MagickFalse) |
|
|
(void) LogMagickEvent(AnnotateEvent,GetMagickModule(),"Font %s; " |
|
|
"font-encoding %s; text-encoding %s; pointsize %g", |
|
|
draw_info->font != (char *) NULL ? draw_info->font : "none", |
|
|
encoding != (char *) NULL ? encoding : "none", |
|
|
draw_info->encoding != (char *) NULL ? draw_info->encoding : "none", |
|
|
draw_info->pointsize); |
|
|
flags=FT_LOAD_NO_BITMAP; |
|
|
if (draw_info->text_antialias == MagickFalse) |
|
|
flags|=FT_LOAD_TARGET_MONO; |
|
|
else |
|
|
{ |
|
|
#if defined(FT_LOAD_TARGET_LIGHT) |
|
|
flags|=FT_LOAD_TARGET_LIGHT; |
|
|
#elif defined(FT_LOAD_TARGET_LCD) |
|
|
flags|=FT_LOAD_TARGET_LCD; |
|
|
#endif |
|
|
} |
|
|
value=GetImageProperty(image,"type:hinting",exception); |
|
|
if ((value != (const char *) NULL) && (LocaleCompare(value,"off") == 0)) |
|
|
flags|=FT_LOAD_NO_HINTING; |
|
|
glyph.id=0; |
|
|
glyph.image=NULL; |
|
|
last_glyph.id=0; |
|
|
last_glyph.image=NULL; |
|
|
origin.x=0; |
|
|
origin.y=0; |
|
|
affine.xx=65536L; |
|
|
affine.yx=0L; |
|
|
affine.xy=0L; |
|
|
affine.yy=65536L; |
|
|
if (draw_info->render != MagickFalse) |
|
|
{ |
|
|
affine.xx=(FT_Fixed) (65536L*draw_info->affine.sx+0.5); |
|
|
affine.yx=(FT_Fixed) (-65536L*draw_info->affine.rx+0.5); |
|
|
affine.xy=(FT_Fixed) (-65536L*draw_info->affine.ry+0.5); |
|
|
affine.yy=(FT_Fixed) (65536L*draw_info->affine.sy+0.5); |
|
|
} |
|
|
annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
|
|
if (annotate_info->dash_pattern != (double *) NULL) |
|
|
annotate_info->dash_pattern[0]=0.0; |
|
|
(void) CloneString(&annotate_info->primitive,"path '"); |
|
|
status=MagickTrue; |
|
|
if (draw_info->render != MagickFalse) |
|
|
{ |
|
|
if (image->storage_class != DirectClass) |
|
|
(void) SetImageStorageClass(image,DirectClass,exception); |
|
|
if (image->alpha_trait == UndefinedPixelTrait) |
|
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception); |
|
|
} |
|
|
point.x=0.0; |
|
|
point.y=0.0; |
|
|
for (p=draw_info->text; GetUTFCode(p) != 0; p+=GetUTFOctets(p)) |
|
|
if (GetUTFCode(p) < 0) |
|
|
break; |
|
|
utf8=(unsigned char *) NULL; |
|
|
if (GetUTFCode(p) == 0) |
|
|
p=draw_info->text; |
|
|
else |
|
|
{ |
|
|
utf8=ConvertLatin1ToUTF8((unsigned char *) draw_info->text); |
|
|
if (utf8 != (unsigned char *) NULL) |
|
|
p=(char *) utf8; |
|
|
} |
|
|
grapheme=(GraphemeInfo *) NULL; |
|
|
length=ComplexTextLayout(image,draw_info,p,strlen(p),face,flags,&grapheme, |
|
|
exception); |
|
|
code=0; |
|
|
for (i=0; i < (ssize_t) length; i++) |
|
|
{ |
|
|
/* |
|
|
Render UTF-8 sequence. |
|
|
*/ |
|
|
glyph.id=(FT_UInt) grapheme[i].index; |
|
|
if (glyph.id == 0) |
|
|
glyph.id=FT_Get_Char_Index(face,'?'); |
|
|
if ((glyph.id != 0) && (last_glyph.id != 0)) |
|
|
origin.x+=(FT_Pos) (64.0*draw_info->kerning); |
|
|
glyph.origin=origin; |
|
|
glyph.origin.x+=(FT_Pos) grapheme[i].x_offset; |
|
|
glyph.origin.y+=(FT_Pos) grapheme[i].y_offset; |
|
|
ft_status=FT_Load_Glyph(face,glyph.id,flags); |
|
|
if (ft_status != 0) |
|
|
continue; |
|
|
ft_status=FT_Get_Glyph(face->glyph,&glyph.image); |
|
|
if (ft_status != 0) |
|
|
continue; |
|
|
ft_status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)->outline, |
|
|
&bounds); |
|
|
if (ft_status != 0) |
|
|
continue; |
|
|
if ((p == draw_info->text) || (bounds.xMin < metrics->bounds.x1)) |
|
|
if (bounds.xMin != 0) |
|
|
metrics->bounds.x1=(double) bounds.xMin; |
|
|
if ((p == draw_info->text) || (bounds.yMin < metrics->bounds.y1)) |
|
|
if (bounds.yMin != 0) |
|
|
metrics->bounds.y1=(double) bounds.yMin; |
|
|
if ((p == draw_info->text) || (bounds.xMax > metrics->bounds.x2)) |
|
|
if (bounds.xMax != 0) |
|
|
metrics->bounds.x2=(double) bounds.xMax; |
|
|
if ((p == draw_info->text) || (bounds.yMax > metrics->bounds.y2)) |
|
|
if (bounds.yMax != 0) |
|
|
metrics->bounds.y2=(double) bounds.yMax; |
|
|
if (((draw_info->stroke.alpha != TransparentAlpha) || |
|
|
(draw_info->stroke_pattern != (Image *) NULL)) && |
|
|
((status != MagickFalse) && (draw_info->render != MagickFalse))) |
|
|
{ |
|
|
/* |
|
|
Trace the glyph. |
|
|
*/ |
|
|
annotate_info->affine.tx=glyph.origin.x/64.0; |
|
|
annotate_info->affine.ty=(-glyph.origin.y/64.0); |
|
|
(void) FT_Outline_Decompose(&((FT_OutlineGlyph) glyph.image)->outline, |
|
|
&OutlineMethods,annotate_info); |
|
|
} |
|
|
FT_Vector_Transform(&glyph.origin,&affine); |
|
|
(void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin); |
|
|
ft_status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal, |
|
|
(FT_Vector *) NULL,MagickTrue); |
|
|
if (ft_status != 0) |
|
|
continue; |
|
|
bitmap=(FT_BitmapGlyph) glyph.image; |
|
|
point.x=offset->x+bitmap->left; |
|
|
if (bitmap->bitmap.pixel_mode == ft_pixel_mode_mono) |
|
|
point.x=offset->x+(origin.x >> 6); |
|
|
point.y=offset->y-bitmap->top; |
|
|
if (draw_info->render != MagickFalse) |
|
|
{ |
|
|
CacheView |
|
|
*image_view; |
|
|
|
|
|
register unsigned char |
|
|
*r; |
|
|
|
|
|
/* |
|
|
Rasterize the glyph. |
|
|
*/ |
|
|
image_view=AcquireAuthenticCacheView(image,exception); |
|
|
r=bitmap->bitmap.buffer; |
|
|
for (y=0; y < (ssize_t) bitmap->bitmap.rows; y++) |
|
|
{ |
|
|
double |
|
|
fill_opacity; |
|
|
|
|
|
MagickBooleanType |
|
|
active, |
|
|
sync; |
|
|
|
|
|
PixelInfo |
|
|
fill_color; |
|
|
|
|
|
register Quantum |
|
|
*magick_restrict q; |
|
|
|
|
|
register ssize_t |
|
|
x; |
|
|
|
|
|
ssize_t |
|
|
n, |
|
|
x_offset, |
|
|
y_offset; |
|
|
|
|
|
if (status == MagickFalse) |
|
|
continue; |
|
|
x_offset=(ssize_t) ceil(point.x-0.5); |
|
|
y_offset=(ssize_t) ceil(point.y+y-0.5); |
|
|
if ((y_offset < 0) || (y_offset >= (ssize_t) image->rows)) |
|
|
continue; |
|
|
q=(Quantum *) NULL; |
|
|
if ((x_offset < 0) || (x_offset >= (ssize_t) image->columns)) |
|
|
active=MagickFalse; |
|
|
else |
|
|
{ |
|
|
q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset, |
|
|
bitmap->bitmap.width,1,exception); |
|
|
active=q != (Quantum *) NULL ? MagickTrue : MagickFalse; |
|
|
} |
|
|
n=y*bitmap->bitmap.pitch-1; |
|
|
for (x=0; x < (ssize_t) bitmap->bitmap.width; x++) |
|
|
{ |
|
|
n++; |
|
|
x_offset++; |
|
|
if ((x_offset < 0) || (x_offset >= (ssize_t) image->columns)) |
|
|
{ |
|
|
if (q != (Quantum *) NULL) |
|
|
q+=GetPixelChannels(image); |
|
|
continue; |
|
|
} |
|
|
if (bitmap->bitmap.pixel_mode != ft_pixel_mode_mono) |
|
|
fill_opacity=(double) (r[n])/(bitmap->bitmap.num_grays-1); |
|
|
else |
|
|
fill_opacity=((r[(x >> 3)+y*bitmap->bitmap.pitch] & |
|
|
(1 << (~x & 0x07)))) == 0 ? 0.0 : 1.0; |
|
|
if (draw_info->text_antialias == MagickFalse) |
|
|
fill_opacity=fill_opacity >= 0.5 ? 1.0 : 0.0; |
|
|
if (active == MagickFalse) |
|
|
q=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,1,1, |
|
|
exception); |
|
|
if (q == (Quantum *) NULL) |
|
|
continue; |
|
|
GetPixelInfo(image,&fill_color); |
|
|
GetFillColor(draw_info,x_offset,y_offset,&fill_color,exception); |
|
|
fill_opacity=fill_opacity*fill_color.alpha; |
|
|
CompositePixelOver(image,&fill_color,fill_opacity,q, |
|
|
GetPixelAlpha(image,q),q); |
|
|
if (active == MagickFalse) |
|
|
{ |
|
|
sync=SyncCacheViewAuthenticPixels(image_view,exception); |
|
|
if (sync == MagickFalse) |
|
|
status=MagickFalse; |
|
|
} |
|
|
q+=GetPixelChannels(image); |
|
|
} |
|
|
sync=SyncCacheViewAuthenticPixels(image_view,exception); |
|
|
if (sync == MagickFalse) |
|
|
status=MagickFalse; |
|
|
} |
|
|
image_view=DestroyCacheView(image_view); |
|
|
if (((draw_info->stroke.alpha != TransparentAlpha) || |
|
|
(draw_info->stroke_pattern != (Image *) NULL)) && |
|
|
(status != MagickFalse)) |
|
|
{ |
|
|
/* |
|
|
Draw text stroke. |
|
|
*/ |
|
|
annotate_info->linejoin=RoundJoin; |
|
|
annotate_info->affine.tx=offset->x; |
|
|
annotate_info->affine.ty=offset->y; |
|
|
(void) ConcatenateString(&annotate_info->primitive,"'"); |
|
|
(void) DrawImage(image,annotate_info,exception); |
|
|
(void) CloneString(&annotate_info->primitive,"path '"); |
|
|
} |
|
|
} |
|
|
if ((bitmap->left+bitmap->bitmap.width) > metrics->width) |
|
|
metrics->width=bitmap->left+bitmap->bitmap.width; |
|
|
if ((fabs(draw_info->interword_spacing) >= MagickEpsilon) && |
|
|
(IsUTFSpace(GetUTFCode(p+grapheme[i].cluster)) != MagickFalse) && |
|
|
(IsUTFSpace(code) == MagickFalse)) |
|
|
origin.x+=(FT_Pos) (64.0*draw_info->interword_spacing); |
|
|
else |
|
|
origin.x+=(FT_Pos) grapheme[i].x_advance; |
|
|
metrics->origin.x=(double) origin.x; |
|
|
metrics->origin.y=(double) origin.y; |
|
|
if (last_glyph.id != 0) |
|
|
FT_Done_Glyph(last_glyph.image); |
|
|
last_glyph=glyph; |
|
|
code=GetUTFCode(p+grapheme[i].cluster); |
|
|
} |
|
|
if (grapheme != (GraphemeInfo *) NULL) |
|
|
grapheme=(GraphemeInfo *) RelinquishMagickMemory(grapheme); |
|
|
if (utf8 != (unsigned char *) NULL) |
|
|
utf8=(unsigned char *) RelinquishMagickMemory(utf8); |
|
|
if (last_glyph.id != 0) |
|
|
FT_Done_Glyph(last_glyph.image); |
|
|
/* |
|
|
Determine font metrics. |
|
|
*/ |
|
|
glyph.id=FT_Get_Char_Index(face,'_'); |
|
|
glyph.origin=origin; |
|
|
ft_status=FT_Load_Glyph(face,glyph.id,flags); |
|
|
if (ft_status == 0) |
|
|
{ |
|
|
ft_status=FT_Get_Glyph(face->glyph,&glyph.image); |
|
|
if (ft_status == 0) |
|
|
{ |
|
|
ft_status=FT_Outline_Get_BBox(&((FT_OutlineGlyph) glyph.image)-> |
|
|
outline,&bounds); |
|
|
if (ft_status == 0) |
|
|
{ |
|
|
FT_Vector_Transform(&glyph.origin,&affine); |
|
|
(void) FT_Glyph_Transform(glyph.image,&affine,&glyph.origin); |
|
|
ft_status=FT_Glyph_To_Bitmap(&glyph.image,ft_render_mode_normal, |
|
|
(FT_Vector *) NULL,MagickTrue); |
|
|
bitmap=(FT_BitmapGlyph) glyph.image; |
|
|
if (bitmap->left > metrics->width) |
|
|
metrics->width=bitmap->left; |
|
|
} |
|
|
} |
|
|
FT_Done_Glyph(glyph.image); |
|
|
} |
|
|
metrics->bounds.x1/=64.0; |
|
|
metrics->bounds.y1/=64.0; |
|
|
metrics->bounds.x2/=64.0; |
|
|
metrics->bounds.y2/=64.0; |
|
|
metrics->origin.x/=64.0; |
|
|
metrics->origin.y/=64.0; |
|
|
/* |
|
|
Relinquish resources. |
|
|
*/ |
|
|
annotate_info=DestroyDrawInfo(annotate_info); |
|
|
(void) FT_Done_Face(face); |
|
|
(void) FT_Done_FreeType(library); |
|
|
return(status); |
|
|
} |
|
|
#else |
|
|
static MagickBooleanType RenderFreetype(Image *image,const DrawInfo *draw_info, |
|
|
const char *magick_unused(encoding),const PointInfo *offset, |
|
|
TypeMetric *metrics,ExceptionInfo *exception) |
|
|
{ |
|
|
(void) ThrowMagickException(exception,GetMagickModule(), |
|
|
MissingDelegateWarning,"DelegateLibrarySupportNotBuiltIn","'%s' (Freetype)", |
|
|
draw_info->font != (char *) NULL ? draw_info->font : "none"); |
|
|
return(RenderPostscript(image,draw_info,offset,metrics,exception)); |
|
|
} |
|
|
#endif |
|
|
|
|
|
/* |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
+ R e n d e r P o s t s c r i p t % |
|
|
% % |
|
|
% % |
|
|
% % |
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|
|
% |
|
|
% RenderPostscript() renders text on the image with a Postscript font. It |
|
|
% also returns the bounding box of the text relative to the image. |
|
|
% |
|
|
% The format of the RenderPostscript method is: |
|
|
% |
|
|
% MagickBooleanType RenderPostscript(Image *image,DrawInfo *draw_info, |
|
|
% const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
|
|
% |
|
|
% A description of each parameter follows: |
|
|
% |
|
|
% o image: the image. |
|
|
% |
|
|
% o draw_info: the draw info. |
|
|
% |
|
|
% o offset: (x,y) location of text relative to image. |
|
|
% |
|
|
% o metrics: bounding box of text. |
|
|
% |
|
|
% o exception: return any errors or warnings in this structure. |
|
|
% |
|
|
*/ |
|
|
|
|
|
static char *EscapeParenthesis(const char *source) |
|
|
{ |
|
|
char |
|
|
*destination; |
|
|
|
|
|
register char |
|
|
*q; |
|
|
|
|
|
register const char |
|
|
*p; |
|
|
|
|
|
size_t |
|
|
length; |
|
|
|
|
|
assert(source != (const char *) NULL); |
|
|
length=0; |
|
|
for (p=source; *p != '\0'; p++) |
|
|
{ |
|
|
if ((*p == '\\') || (*p == '(') || (*p == ')')) |
|
|
{ |
|
|
if (~length < 1) |
|
|
ThrowFatalException(ResourceLimitFatalError,"UnableToEscapeString"); |
|
|
length++; |
|
|
} |
|
|
length++; |
|
|
} |
|
|
destination=(char *) NULL; |
|
|
if (~length >= (MagickPathExtent-1)) |
|
|
destination=(char *) AcquireQuantumMemory(length+MagickPathExtent, |
|
|
sizeof(*destination)); |
|
|
if (destination == (char *) NULL) |
|
|
ThrowFatalException(ResourceLimitFatalError,"UnableToEscapeString"); |
|
|
*destination='\0'; |
|
|
q=destination; |
|
|
for (p=source; *p != '\0'; p++) |
|
|
{ |
|
|
if ((*p == '\\') || (*p == '(') || (*p == ')')) |
|
|
*q++='\\'; |
|
|
*q++=(*p); |
|
|
} |
|
|
*q='\0'; |
|
|
return(destination); |
|
|
} |
|
|
|
|
|
static MagickBooleanType RenderPostscript(Image *image, |
|
|
const DrawInfo *draw_info,const PointInfo *offset,TypeMetric *metrics, |
|
|
ExceptionInfo *exception) |
|
|
{ |
|
|
char |
|
|
filename[MagickPathExtent], |
|
|
geometry[MagickPathExtent], |
|
|
*text; |
|
|
|
|
|
FILE |
|
|
*file; |
|
|
|
|
|
Image |
|
|
*annotate_image; |
|
|
|
|
|
ImageInfo |
|
|
*annotate_info; |
|
|
|
|
|
int |
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unique_file; |
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MagickBooleanType |
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identity; |
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PointInfo |
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extent, |
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point, |
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resolution; |
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register ssize_t |
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i; |
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size_t |
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length; |
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ssize_t |
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y; |
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/* |
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Render label with a Postscript font. |
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*/ |
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if (image->debug != MagickFalse) |
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(void) LogMagickEvent(AnnotateEvent,GetMagickModule(), |
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"Font %s; pointsize %g",draw_info->font != (char *) NULL ? |
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draw_info->font : "none",draw_info->pointsize); |
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file=(FILE *) NULL; |
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unique_file=AcquireUniqueFileResource(filename); |
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if (unique_file != -1) |
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file=fdopen(unique_file,"wb"); |
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if ((unique_file == -1) || (file == (FILE *) NULL)) |
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{ |
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ThrowFileException(exception,FileOpenError,"UnableToOpenFile",filename); |
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return(MagickFalse); |
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} |
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(void) FormatLocaleFile(file,"%%!PS-Adobe-3.0\n"); |
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(void) FormatLocaleFile(file,"/ReencodeType\n"); |
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(void) FormatLocaleFile(file,"{\n"); |
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(void) FormatLocaleFile(file," findfont dup length\n"); |
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(void) FormatLocaleFile(file, |
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" dict begin { 1 index /FID ne {def} {pop pop} ifelse } forall\n"); |
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(void) FormatLocaleFile(file, |
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" /Encoding ISOLatin1Encoding def currentdict end definefont pop\n"); |
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(void) FormatLocaleFile(file,"} bind def\n"); |
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/* |
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Sample to compute bounding box. |
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*/ |
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identity=(fabs(draw_info->affine.sx-draw_info->affine.sy) < MagickEpsilon) && |
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(fabs(draw_info->affine.rx) < MagickEpsilon) && |
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(fabs(draw_info->affine.ry) < MagickEpsilon) ? MagickTrue : MagickFalse; |
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extent.x=0.0; |
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extent.y=0.0; |
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length=strlen(draw_info->text); |
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for (i=0; i <= (ssize_t) (length+2); i++) |
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{ |
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point.x=fabs(draw_info->affine.sx*i*draw_info->pointsize+ |
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draw_info->affine.ry*2.0*draw_info->pointsize); |
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point.y=fabs(draw_info->affine.rx*i*draw_info->pointsize+ |
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draw_info->affine.sy*2.0*draw_info->pointsize); |
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if (point.x > extent.x) |
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extent.x=point.x; |
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if (point.y > extent.y) |
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extent.y=point.y; |
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} |
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(void) FormatLocaleFile(file,"%g %g moveto\n",identity != MagickFalse ? 0.0 : |
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extent.x/2.0,extent.y/2.0); |
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(void) FormatLocaleFile(file,"%g %g scale\n",draw_info->pointsize, |
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draw_info->pointsize); |
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if ((draw_info->font == (char *) NULL) || (*draw_info->font == '\0') || |
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(strchr(draw_info->font,'/') != (char *) NULL)) |
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(void) FormatLocaleFile(file, |
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"/Times-Roman-ISO dup /Times-Roman ReencodeType findfont setfont\n"); |
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else |
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(void) FormatLocaleFile(file, |
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"/%s-ISO dup /%s ReencodeType findfont setfont\n",draw_info->font, |
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draw_info->font); |
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(void) FormatLocaleFile(file,"[%g %g %g %g 0 0] concat\n", |
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draw_info->affine.sx,-draw_info->affine.rx,-draw_info->affine.ry, |
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draw_info->affine.sy); |
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text=EscapeParenthesis(draw_info->text); |
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if (identity == MagickFalse) |
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(void) FormatLocaleFile(file,"(%s) stringwidth pop -0.5 mul -0.5 rmoveto\n", |
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text); |
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(void) FormatLocaleFile(file,"(%s) show\n",text); |
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text=DestroyString(text); |
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(void) FormatLocaleFile(file,"showpage\n"); |
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(void) fclose(file); |
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(void) FormatLocaleString(geometry,MagickPathExtent,"%.20gx%.20g+0+0!", |
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floor(extent.x+0.5),floor(extent.y+0.5)); |
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annotate_info=AcquireImageInfo(); |
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(void) FormatLocaleString(annotate_info->filename,MagickPathExtent,"ps:%s", |
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filename); |
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(void) CloneString(&annotate_info->page,geometry); |
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if (draw_info->density != (char *) NULL) |
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(void) CloneString(&annotate_info->density,draw_info->density); |
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annotate_info->antialias=draw_info->text_antialias; |
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annotate_image=ReadImage(annotate_info,exception); |
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CatchException(exception); |
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annotate_info=DestroyImageInfo(annotate_info); |
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(void) RelinquishUniqueFileResource(filename); |
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if (annotate_image == (Image *) NULL) |
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return(MagickFalse); |
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(void) NegateImage(annotate_image,MagickFalse,exception); |
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resolution.x=DefaultResolution; |
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resolution.y=DefaultResolution; |
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if (draw_info->density != (char *) NULL) |
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{ |
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GeometryInfo |
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geometry_info; |
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MagickStatusType |
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flags; |
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flags=ParseGeometry(draw_info->density,&geometry_info); |
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resolution.x=geometry_info.rho; |
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resolution.y=geometry_info.sigma; |
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if ((flags & SigmaValue) == 0) |
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resolution.y=resolution.x; |
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} |
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if (identity == MagickFalse) |
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(void) TransformImage(&annotate_image,"0x0",(char *) NULL,exception); |
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else |
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{ |
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RectangleInfo |
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crop_info; |
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crop_info=GetImageBoundingBox(annotate_image,exception); |
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crop_info.height=(size_t) ((resolution.y/DefaultResolution)* |
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ExpandAffine(&draw_info->affine)*draw_info->pointsize+0.5); |
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crop_info.y=(ssize_t) ceil((resolution.y/DefaultResolution)*extent.y/8.0- |
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0.5); |
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(void) FormatLocaleString(geometry,MagickPathExtent, |
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"%.20gx%.20g%+.20g%+.20g",(double) crop_info.width,(double) |
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crop_info.height,(double) crop_info.x,(double) crop_info.y); |
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(void) TransformImage(&annotate_image,geometry,(char *) NULL,exception); |
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} |
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metrics->pixels_per_em.x=(resolution.y/DefaultResolution)* |
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ExpandAffine(&draw_info->affine)*draw_info->pointsize; |
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metrics->pixels_per_em.y=metrics->pixels_per_em.x; |
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metrics->ascent=metrics->pixels_per_em.x; |
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metrics->descent=metrics->pixels_per_em.y/-5.0; |
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metrics->width=(double) annotate_image->columns/ |
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ExpandAffine(&draw_info->affine); |
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metrics->height=1.152*metrics->pixels_per_em.x; |
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metrics->max_advance=metrics->pixels_per_em.x; |
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metrics->bounds.x1=0.0; |
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metrics->bounds.y1=metrics->descent; |
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metrics->bounds.x2=metrics->ascent+metrics->descent; |
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metrics->bounds.y2=metrics->ascent+metrics->descent; |
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metrics->underline_position=(-2.0); |
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metrics->underline_thickness=1.0; |
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if (draw_info->render == MagickFalse) |
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{ |
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annotate_image=DestroyImage(annotate_image); |
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return(MagickTrue); |
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} |
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if (draw_info->fill.alpha != TransparentAlpha) |
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{ |
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CacheView |
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*annotate_view; |
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MagickBooleanType |
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sync; |
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PixelInfo |
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fill_color; |
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/* |
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Render fill color. |
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*/ |
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if (image->alpha_trait == UndefinedPixelTrait) |
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(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception); |
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if (annotate_image->alpha_trait == UndefinedPixelTrait) |
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(void) SetImageAlphaChannel(annotate_image,OpaqueAlphaChannel, |
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exception); |
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fill_color=draw_info->fill; |
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annotate_view=AcquireAuthenticCacheView(annotate_image,exception); |
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for (y=0; y < (ssize_t) annotate_image->rows; y++) |
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{ |
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register ssize_t |
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x; |
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register Quantum |
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*magick_restrict q; |
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q=GetCacheViewAuthenticPixels(annotate_view,0,y,annotate_image->columns, |
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1,exception); |
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if (q == (Quantum *) NULL) |
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break; |
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for (x=0; x < (ssize_t) annotate_image->columns; x++) |
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{ |
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GetFillColor(draw_info,x,y,&fill_color,exception); |
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SetPixelAlpha(annotate_image,ClampToQuantum((((double) QuantumScale* |
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GetPixelIntensity(annotate_image,q)*fill_color.alpha))),q); |
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SetPixelRed(annotate_image,fill_color.red,q); |
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SetPixelGreen(annotate_image,fill_color.green,q); |
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SetPixelBlue(annotate_image,fill_color.blue,q); |
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q+=GetPixelChannels(annotate_image); |
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} |
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sync=SyncCacheViewAuthenticPixels(annotate_view,exception); |
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if (sync == MagickFalse) |
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break; |
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} |
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annotate_view=DestroyCacheView(annotate_view); |
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(void) CompositeImage(image,annotate_image,OverCompositeOp,MagickTrue, |
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(ssize_t) ceil(offset->x-0.5),(ssize_t) ceil(offset->y-(metrics->ascent+ |
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metrics->descent)-0.5),exception); |
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} |
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annotate_image=DestroyImage(annotate_image); |
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return(MagickTrue); |
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} |
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/* |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% % |
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% % |
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% % |
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+ R e n d e r X 1 1 % |
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% % |
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% % |
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% % |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% |
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% RenderX11() renders text on the image with an X11 font. It also returns the |
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% bounding box of the text relative to the image. |
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% |
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% The format of the RenderX11 method is: |
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% |
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% MagickBooleanType RenderX11(Image *image,DrawInfo *draw_info, |
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% const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
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% |
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% A description of each parameter follows: |
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% |
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% o image: the image. |
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% |
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% o draw_info: the draw info. |
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% |
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% o offset: (x,y) location of text relative to image. |
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% |
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% o metrics: bounding box of text. |
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% |
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% o exception: return any errors or warnings in this structure. |
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% |
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*/ |
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static MagickBooleanType RenderX11(Image *image,const DrawInfo *draw_info, |
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const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
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{ |
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MagickBooleanType |
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status; |
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if (annotate_semaphore == (SemaphoreInfo *) NULL) |
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ActivateSemaphoreInfo(&annotate_semaphore); |
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LockSemaphoreInfo(annotate_semaphore); |
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status=XRenderImage(image,draw_info,offset,metrics,exception); |
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UnlockSemaphoreInfo(annotate_semaphore); |
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return(status); |
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}
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