| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % AAA N N N N OOO TTTTT AAA TTTTT EEEEE % |
| % A A NN N NN N O O T A A T E % |
| % AAAAA N N N N N N O O T AAAAA T EEE % |
| % A A N NN N NN O O T A A T E % |
| % A A N N N N OOO T A A T EEEEE % |
| % % |
| % % |
| % MagickCore Image Annotation Methods % |
| % % |
| % Software Design % |
| % Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2020 ImageMagick Studio LLC, a non-profit organization % |
| % dedicated to making software imaging solutions freely available. % |
| % % |
| % You may not use this file except in compliance with the License. You may % |
| % obtain a copy of the License at % |
| % % |
| % https://imagemagick.org/script/license.php % |
| % % |
| % Unless required by applicable law or agreed to in writing, software % |
| % distributed under the License is distributed on an "AS IS" BASIS, % |
| % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| % See the License for the specific language governing permissions and % |
| % limitations under the License. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % Digital Applications (www.digapp.com) contributed the stroked text algorithm. |
| % It was written by Leonard Rosenthol. |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "MagickCore/studio.h" |
| #include "MagickCore/annotate.h" |
| #include "MagickCore/annotate-private.h" |
| #include "MagickCore/attribute.h" |
| #include "MagickCore/cache-private.h" |
| #include "MagickCore/cache-view.h" |
| #include "MagickCore/channel.h" |
| #include "MagickCore/client.h" |
| #include "MagickCore/color.h" |
| #include "MagickCore/color-private.h" |
| #include "MagickCore/colorspace-private.h" |
| #include "MagickCore/composite.h" |
| #include "MagickCore/composite-private.h" |
| #include "MagickCore/constitute.h" |
| #include "MagickCore/draw.h" |
| #include "MagickCore/draw-private.h" |
| #include "MagickCore/enhance.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/gem.h" |
| #include "MagickCore/geometry.h" |
| #include "MagickCore/image-private.h" |
| #include "MagickCore/log.h" |
| #include "MagickCore/quantum.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/pixel-accessor.h" |
| #include "MagickCore/property.h" |
| #include "MagickCore/resource_.h" |
| #include "MagickCore/semaphore.h" |
| #include "MagickCore/statistic.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/token.h" |
| #include "MagickCore/token-private.h" |
| #include "MagickCore/transform.h" |
| #include "MagickCore/transform-private.h" |
| #include "MagickCore/type.h" |
| #include "MagickCore/utility.h" |
| #include "MagickCore/utility-private.h" |
| #include "MagickCore/xwindow.h" |
| #include "MagickCore/xwindow-private.h" |
| #if defined(MAGICKCORE_FREETYPE_DELEGATE) |
| #if defined(__MINGW32__) |
| # undef interface |
| #endif |
| #include <ft2build.h> |
| #if defined(FT_FREETYPE_H) |
| # include FT_FREETYPE_H |
| #else |
| # include <freetype/freetype.h> |
| #endif |
| #if defined(FT_GLYPH_H) |
| # include FT_GLYPH_H |
| #else |
| # include <freetype/ftglyph.h> |
| #endif |
| #if defined(FT_OUTLINE_H) |
| # include FT_OUTLINE_H |
| #else |
| # include <freetype/ftoutln.h> |
| #endif |
| #if defined(FT_BBOX_H) |
| # include FT_BBOX_H |
| #else |
| # include <freetype/ftbbox.h> |
| #endif /* defined(FT_BBOX_H) */ |
| #endif |
| #if defined(MAGICKCORE_RAQM_DELEGATE) |
| #include <raqm.h> |
| #endif |
| typedef struct _GraphemeInfo |
| { |
| size_t |
| index, |
| x_offset, |
| x_advance, |
| y_offset; |
| |
| size_t |
| cluster; |
| } GraphemeInfo; |
| |
| /* |
| Annotate semaphores. |
| */ |
| static SemaphoreInfo |
| *annotate_semaphore = (SemaphoreInfo *) NULL; |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| RenderType(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
| ExceptionInfo *), |
| RenderPostscript(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
| ExceptionInfo *), |
| RenderFreetype(Image *,const DrawInfo *,const char *,const PointInfo *, |
| TypeMetric *,ExceptionInfo *), |
| RenderX11(Image *,const DrawInfo *,const PointInfo *,TypeMetric *, |
| ExceptionInfo *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + A n n o t a t e C o m p o n e n t G e n e s i s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % AnnotateComponentGenesis() instantiates the annotate component. |
| % |
| % The format of the AnnotateComponentGenesis method is: |
| % |
| % MagickBooleanType AnnotateComponentGenesis(void) |
| % |
| */ |
| MagickPrivate MagickBooleanType AnnotateComponentGenesis(void) |
| { |
| if (annotate_semaphore == (SemaphoreInfo *) NULL) |
| annotate_semaphore=AcquireSemaphoreInfo(); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + 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 % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % AnnotateComponentTerminus() destroys the annotate component. |
| % |
| % The format of the AnnotateComponentTerminus method is: |
| % |
| % AnnotateComponentTerminus(void) |
| % |
| */ |
| MagickPrivate void AnnotateComponentTerminus(void) |
| { |
| if (annotate_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&annotate_semaphore); |
| RelinquishSemaphoreInfo(&annotate_semaphore); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % A n n o t a t e I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % AnnotateImage() annotates an image with text. |
| % |
| % 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. |
| % |
| % o draw_info: the draw info. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport MagickBooleanType AnnotateImage(Image *image, |
| const DrawInfo *draw_info,ExceptionInfo *exception) |
| { |
| char |
| *p, |
| color[MagickPathExtent], |
| primitive[MagickPathExtent], |
| *text, |
| **textlist; |
| |
| DrawInfo |
| *annotate, |
| *annotate_info; |
| |
| GeometryInfo |
| geometry_info; |
| |
| MagickBooleanType |
| status; |
| |
| PixelInfo |
| pixel; |
| |
| PointInfo |
| offset; |
| |
| RectangleInfo |
| geometry; |
| |
| register ssize_t |
| i; |
| |
| 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); |
| annotate=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
| text=annotate->text; |
| annotate->text=(char *) NULL; |
| annotate_info=CloneDrawInfo((ImageInfo *) NULL,draw_info); |
| number_lines=1; |
| for (p=text; *p != '\0'; p++) |
| if (*p == '\n') |
| number_lines++; |
| textlist=(char **) AcquireQuantumMemory(number_lines+1,sizeof(*textlist)); |
| if (textlist == (char **) NULL) |
| { |
| annotate_info=DestroyDrawInfo(annotate_info); |
| annotate=DestroyDrawInfo(annotate); |
| text=DestroyString(text); |
| return(MagickFalse); |
| } |
| p=text; |
| for (i=0; i < (ssize_t) number_lines; i++) |
| { |
| char |
| *q; |
| |
| textlist[i]=p; |
| for (q=p; *q != '\0'; q++) |
| if ((*q == '\r') || (*q == '\n')) |
| break; |
| if (*q == '\r') |
| { |
| *q='\0'; |
| q++; |
| } |
| *q='\0'; |
| p=q+1; |
| } |
| textlist[i]=(char *) NULL; |
| 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) |
| { |
| annotate_info=DestroyDrawInfo(annotate_info); |
| annotate=DestroyDrawInfo(annotate); |
| textlist=(char **) RelinquishMagickMemory(textlist); |
| text=DestroyString(text); |
| return(MagickFalse); |
| } |
| if (IsGrayColorspace(image->colorspace) != MagickFalse) |
| (void) SetImageColorspace(image,sRGBColorspace,exception); |
| status=MagickTrue; |
| (void) memset(&metrics,0,sizeof(metrics)); |
| for (i=0; textlist[i] != (char *) NULL; i++) |
| { |
| if (*textlist[i] == '\0') |
| continue; |
| /* |
| 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]); |
| if ((metrics.width == 0) || (annotate->gravity != NorthWestGravity)) |
| (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/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/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+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; |
| 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/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/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+ |
| 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+ |
| 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/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/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- |
| 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- |
| 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/2.0; |
| offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height- |
| annotate_info->affine.rx*metrics.width/2.0; |
| break; |
| } |
| case RightAlign: |
| { |
| offset.x=annotate_info->affine.tx+i*annotate_info->affine.ry*height- |
| annotate_info->affine.sx*metrics.width; |
| offset.y=annotate_info->affine.ty+i*annotate_info->affine.sy*height- |
| annotate_info->affine.rx*metrics.width; |
| 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; |
| pixel=annotate_info->fill; |
| if (annotate_info->stroke.alpha != TransparentAlpha) |
| pixel=annotate_info->stroke; |
| (void) QueryColorname(image,&pixel,AllCompliance,color,exception); |
| (void) FormatLocaleString(primitive,MagickPathExtent,"stroke %s " |
| "stroke-width %g line 0,0 %g,0",color,(double) |
| metrics.underline_thickness,(double) metrics.width); |
| /* |
| Annotate image with text. |
| */ |
| switch (annotate->decorate) |
| { |
| case 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); |
| break; |
| } |
| case UnderlineDecoration: |
| { |
| annotate_info->affine.ty-=(draw_info->affine.sy* |
| metrics.underline_position); |
| (void) CloneString(&annotate_info->primitive,primitive); |
| (void) DrawImage(image,annotate_info,exception); |
| break; |
| } |
| default: |
| break; |
| } |
| 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)/2.0); |
| (void) CloneString(&annotate_info->primitive,primitive); |
| (void) DrawImage(image,annotate_info,exception); |
| } |
| } |
| /* |
| Relinquish resources. |
| */ |
| annotate_info=DestroyDrawInfo(annotate_info); |
| annotate=DestroyDrawInfo(annotate); |
| textlist=(char **) RelinquishMagickMemory(textlist); |
| text=DestroyString(text); |
| 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) |
| { |
| MagickBooleanType |
| status; |
| |
| register char |
| *p, |
| *q, |
| *s; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| width; |
| |
| ssize_t |
| n; |
| |
| q=draw_info->text; |
| s=(char *) NULL; |
| for (p=(*caption); GetUTFCode(p) != 0; p+=GetUTFOctets(p)) |
| { |
| if (IsUTFSpace(GetUTFCode(p)) != MagickFalse) |
| s=p; |
| if (GetUTFCode(p) == '\n') |
| { |
| q=draw_info->text; |
| continue; |
| } |
| 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) |
| continue; |
| if (s != (char *) NULL) |
| { |
| *s='\n'; |
| p=s; |
| } |
| else |
| if (split != MagickFalse) |
| { |
| /* |
| No convenient line breaks-- insert newline. |
| */ |
| n=p-(*caption); |
| if ((n > 0) && ((*caption)[n-1] != '\n')) |
| { |
| char |
| *target; |
| |
| target=AcquireString(*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; |
| } |
| 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; |
| |
| double |
| height; |
| |
| DrawInfo |
| *annotate_info; |
| |
| MagickBooleanType |
| status; |
| |
| MagickSizeType |
| size; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| count; |
| |
| 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=StringToStrings(draw_info->text,&count); |
| if (textlist == (char **) NULL) |
| return(MagickFalse); |
| annotate_info->render=MagickFalse; |
| annotate_info->direction=UndefinedDirection; |
| (void) memset(metrics,0,sizeof(*metrics)); |
| (void) memset(&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; |
| height=(count*(size_t) (metrics->ascent-metrics->descent+ |
| 0.5)+(count-1)*draw_info->interline_spacing); |
| size=(MagickSizeType) fabs(height); |
| if (AcquireMagickResource(HeightResource,size) == MagickFalse) |
| { |
| (void) ThrowMagickException(exception,GetMagickModule(),ImageError, |
| "WidthOrHeightExceedsLimit","`%s'",image->filename); |
| status=MagickFalse; |
| } |
| else |
| { |
| for (i=1; i < (ssize_t) count; i++) |
| { |
| annotate_info->text=textlist[i]; |
| status=GetTypeMetrics(image,annotate_info,&extent,exception); |
| if (status == MagickFalse) |
| break; |
| if (extent.width > metrics->width) |
| *metrics=extent; |
| size=(MagickSizeType) fabs(extent.width); |
| if (AcquireMagickResource(WidthResource,size) == MagickFalse) |
| { |
| (void) ThrowMagickException(exception,GetMagickModule(),ImageError, |
| "WidthOrHeightExceedsLimit","`%s'",image->filename); |
| status=MagickFalse; |
| break; |
| } |
| } |
| metrics->height=(double) height; |
| } |
| /* |
| Relinquish resources. |
| */ |
| annotate_info->text=(char *) NULL; |
| annotate_info=DestroyDrawInfo(annotate_info); |
| for (i=0; i < (ssize_t) count; 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) memset(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 (*draw_info->font == '^') |
| return(RenderPostscript(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) |
| { |
| char |
| **family; |
| |
| int |
| number_families; |
| |
| register ssize_t |
| i; |
| |
| /* |
| Parse font family list. |
| */ |
| family=StringToArgv(draw_info->family,&number_families); |
| for (i=1; i < (ssize_t) number_families; i++) |
| { |
| type_info=GetTypeInfoByFamily(family[i],draw_info->style, |
| draw_info->stretch,draw_info->weight,exception); |
| if (type_info != (const TypeInfo *) NULL) |
| break; |
| } |
| for (i=0; i < (ssize_t) number_families; i++) |
| family[i]=DestroyString(family[i]); |
| family=(char **) RelinquishMagickMemory(family); |
| 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 ssize_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; |
| |
| /* |
| Simple layout for bi-directional text (right-to-left or left-to-right). |
| */ |
| magick_unreferenced(image); |
| magick_unreferenced(exception); |
| *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_UInt |
| first_glyph_id, |
| last_glyph_id, |
| missing_glyph_id; |
| |
| FT_Vector |
| origin; |
| |
| GlyphInfo |
| glyph; |
| |
| GraphemeInfo |
| *grapheme; |
| |
| MagickBooleanType |
| status; |
| |
| PointInfo |
| point, |
| resolution; |
| |
| register char |
| *p; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| length; |
| |
| ssize_t |
| code, |
| last_character, |
| 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); |
| if (ft_status != 0) |
| { |
| (void) FT_Done_FreeType(library); |
| (void) ThrowMagickException(exception,GetMagickModule(),TypeError, |
| "UnableToReadFont","`%s'",args.pathname); |
| args.pathname=DestroyString(args.pathname); |
| return(MagickFalse); |
| } |
| args.pathname=DestroyString(args.pathname); |
| 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 defined(FT_ENCODING_PRC) |
| if (LocaleCompare(encoding,"GB2312") == 0) |
| encoding_type=FT_ENCODING_PRC; |
| #endif |
| #if defined(FT_ENCODING_JOHAB) |
| if (LocaleCompare(encoding,"Johab") == 0) |
| encoding_type=FT_ENCODING_JOHAB; |
| #endif |
| #if defined(FT_ENCODING_ADOBE_LATIN_1) |
| if (LocaleCompare(encoding,"Latin-1") == 0) |
| encoding_type=FT_ENCODING_ADOBE_LATIN_1; |
| #endif |
| #if defined(FT_ENCODING_ADOBE_LATIN_2) |
| if (LocaleCompare(encoding,"Latin-2") == 0) |
| encoding_type=FT_ENCODING_OLD_LATIN_2; |
| #endif |
| 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_MS_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 |
| geometry_flags; |
| |
| geometry_flags=ParseGeometry(draw_info->density,&geometry_info); |
| resolution.x=geometry_info.rho; |
| resolution.y=geometry_info.sigma; |
| if ((geometry_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* |
| (metrics->pixels_per_em.x/face->units_per_EM); |
| metrics->underline_thickness=face->underline_thickness* |
| (metrics->pixels_per_em.x/face->units_per_EM); |
| first_glyph_id=0; |
| FT_Get_First_Char(face,&first_glyph_id); |
| if ((draw_info->text == (char *) NULL) || (*draw_info->text == '\0') || |
| (first_glyph_id == 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_DEFAULT; |
| if (draw_info->render == MagickFalse) |
| flags=FT_LOAD_NO_BITMAP; |
| if (draw_info->text_antialias == MagickFalse) |
| flags|=FT_LOAD_RENDER | 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=(FT_Glyph) NULL; |
| last_glyph_id=0; |
| 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); |
| missing_glyph_id=FT_Get_Char_Index(face,' '); |
| code=0; |
| last_character=(ssize_t) length-1; |
| for (i=0; i < (ssize_t) length; i++) |
| { |
| FT_Outline |
| outline; |
| |
| /* |
| Render UTF-8 sequence. |
| */ |
| glyph.id=(FT_UInt) grapheme[i].index; |
| if (glyph.id == 0) |
| glyph.id=missing_glyph_id; |
| 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; |
| if (glyph.image != (FT_Glyph) NULL) |
| { |
| FT_Done_Glyph(glyph.image); |
| glyph.image=(FT_Glyph) NULL; |
| } |
| 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; |
| outline=((FT_OutlineGlyph) glyph.image)->outline; |
| ft_status=FT_Outline_Get_BBox(&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); |
| if ((outline.n_contours > 0) && (outline.n_points > 0)) |
| ft_status=FT_Outline_Decompose(&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; |
| |
| MagickBooleanType |
| transparent_fill; |
| |
| register unsigned char |
| *r; |
| |
| /* |
| Rasterize the glyph. |
| */ |
| transparent_fill=((draw_info->fill.alpha == TransparentAlpha) && |
| (draw_info->fill_pattern == (Image *) NULL) && |
| (draw_info->stroke.alpha == TransparentAlpha) && |
| (draw_info->stroke_pattern == (Image *) NULL)) ? MagickTrue : |
| MagickFalse; |
| 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; |
| } |
| fill_opacity=1.0; |
| if (bitmap->bitmap.pixel_mode == ft_pixel_mode_grays) |
| fill_opacity=(double) (r[n])/(bitmap->bitmap.num_grays-1); |
| else |
| if (bitmap->bitmap.pixel_mode == ft_pixel_mode_mono) |
| 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; |
| if (transparent_fill == MagickFalse) |
| { |
| 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); |
| } |
| else |
| { |
| double |
| Sa, |
| Da; |
| |
| Da=1.0-(QuantumScale*GetPixelAlpha(image,q)); |
| Sa=fill_opacity; |
| fill_opacity=(1.0-RoundToUnity(Sa+Da-Sa*Da))*QuantumRange; |
| SetPixelAlpha(image,fill_opacity,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,"'"); |
| if (strlen(annotate_info->primitive) > 7) |
| (void) DrawImage(image,annotate_info,exception); |
| (void) CloneString(&annotate_info->primitive,"path '"); |
| } |
| } |
| 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 |
| if (i == last_character) |
| { |
| if ((bounds.xMax == 0) || |
| (annotate_info->gravity == CenterGravity)) |
| origin.x+=(FT_Pos) grapheme[i].x_advance; |
| else |
| origin.x+=(FT_Pos) bounds.xMax; |
| } |
| else |
| origin.x+=(FT_Pos) grapheme[i].x_advance; |
| metrics->origin.x=(double) origin.x; |
| metrics->origin.y=(double) origin.y; |
| if (metrics->origin.x > metrics->width) |
| metrics->width=metrics->origin.x; |
| last_glyph_id=glyph.id; |
| 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 (glyph.image != (FT_Glyph) NULL) |
| { |
| FT_Done_Glyph(glyph.image); |
| glyph.image=(FT_Glyph) NULL; |
| } |
| /* |
| Determine font metrics. |
| */ |
| 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; |
| metrics->width=ceil(metrics->width/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 |
| unique_file; |
| |
| MagickBooleanType |
| identity; |
| |
| PointInfo |
| extent, |
| point, |
| resolution; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| length; |
| |
| ssize_t |
| y; |
| |
| /* |
| Render label with a Postscript font. |
| */ |
| if (image->debug != MagickFalse) |
| (void) LogMagickEvent(AnnotateEvent,GetMagickModule(), |
| "Font %s; pointsize %g",draw_info->font != (char *) NULL ? |
| draw_info->font : "none",draw_info->pointsize); |
| file=(FILE *) NULL; |
| unique_file=AcquireUniqueFileResource(filename); |
| if (unique_file != -1) |
| file=fdopen(unique_file,"wb"); |
| if ((unique_file == -1) || (file == (FILE *) NULL)) |
| { |
| ThrowFileException(exception,FileOpenError,"UnableToOpenFile",filename); |
| return(MagickFalse); |
| } |
| (void) FormatLocaleFile(file,"%%!PS-Adobe-3.0\n"); |
| (void) FormatLocaleFile(file,"/ReencodeType\n"); |
| (void) FormatLocaleFile(file,"{\n"); |
| (void) FormatLocaleFile(file," findfont dup length\n"); |
| (void) FormatLocaleFile(file, |
| " dict begin { 1 index /FID ne {def} {pop pop} ifelse } forall\n"); |
| (void) FormatLocaleFile(file, |
| " /Encoding ISOLatin1Encoding def currentdict end definefont pop\n"); |
| (void) FormatLocaleFile(file,"} bind def\n"); |
| /* |
| Sample to compute bounding box. |
| */ |
| identity=(fabs(draw_info->affine.sx-draw_info->affine.sy) < MagickEpsilon) && |
| (fabs(draw_info->affine.rx) < MagickEpsilon) && |
| (fabs(draw_info->affine.ry) < MagickEpsilon) ? MagickTrue : MagickFalse; |
| extent.x=0.0; |
| extent.y=0.0; |
| length=strlen(draw_info->text); |
| for (i=0; i <= (ssize_t) (length+2); i++) |
| { |
| point.x=fabs(draw_info->affine.sx*i*draw_info->pointsize+ |
| draw_info->affine.ry*2.0*draw_info->pointsize); |
| point.y=fabs(draw_info->affine.rx*i*draw_info->pointsize+ |
| draw_info->affine.sy*2.0*draw_info->pointsize); |
| if (point.x > extent.x) |
| extent.x=point.x; |
| if (point.y > extent.y) |
| extent.y=point.y; |
| } |
| (void) FormatLocaleFile(file,"%g %g moveto\n",identity != MagickFalse ? 0.0 : |
| extent.x/2.0,extent.y/2.0); |
| (void) FormatLocaleFile(file,"%g %g scale\n",draw_info->pointsize, |
| draw_info->pointsize); |
| if ((draw_info->font == (char *) NULL) || (*draw_info->font == '\0') || |
| (strchr(draw_info->font,'/') != (char *) NULL)) |
| (void) FormatLocaleFile(file, |
| "/Times-Roman-ISO dup /Times-Roman ReencodeType findfont setfont\n"); |
| else |
| (void) FormatLocaleFile(file, |
| "/%s-ISO dup /%s ReencodeType findfont setfont\n",draw_info->font, |
| draw_info->font); |
| (void) FormatLocaleFile(file,"[%g %g %g %g 0 0] concat\n", |
| draw_info->affine.sx,-draw_info->affine.rx,-draw_info->affine.ry, |
| draw_info->affine.sy); |
| text=EscapeParenthesis(draw_info->text); |
| if (identity == MagickFalse) |
| (void) FormatLocaleFile(file,"(%s) stringwidth pop -0.5 mul -0.5 rmoveto\n", |
| text); |
| (void) FormatLocaleFile(file,"(%s) show\n",text); |
| text=DestroyString(text); |
| (void) FormatLocaleFile(file,"showpage\n"); |
| (void) fclose(file); |
| (void) FormatLocaleString(geometry,MagickPathExtent,"%.20gx%.20g+0+0!", |
| floor(extent.x+0.5),floor(extent.y+0.5)); |
| annotate_info=AcquireImageInfo(); |
| (void) FormatLocaleString(annotate_info->filename,MagickPathExtent,"ps:%s", |
| filename); |
| (void) CloneString(&annotate_info->page,geometry); |
| if (draw_info->density != (char *) NULL) |
| (void) CloneString(&annotate_info->density,draw_info->density); |
| annotate_info->antialias=draw_info->text_antialias; |
| annotate_image=ReadImage(annotate_info,exception); |
| CatchException(exception); |
| annotate_info=DestroyImageInfo(annotate_info); |
| (void) RelinquishUniqueFileResource(filename); |
| if (annotate_image == (Image *) NULL) |
| return(MagickFalse); |
| (void) NegateImage(annotate_image,MagickFalse,exception); |
| 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; |
| } |
| if (identity == MagickFalse) |
| (void) TransformImage(&annotate_image,"0x0",(char *) NULL,exception); |
| else |
| { |
| RectangleInfo |
| crop_info; |
| |
| crop_info=GetImageBoundingBox(annotate_image,exception); |
| crop_info.height=(size_t) ((resolution.y/DefaultResolution)* |
| ExpandAffine(&draw_info->affine)*draw_info->pointsize+0.5); |
| crop_info.y=(ssize_t) ceil((resolution.y/DefaultResolution)*extent.y/8.0- |
| 0.5); |
| (void) FormatLocaleString(geometry,MagickPathExtent, |
| "%.20gx%.20g%+.20g%+.20g",(double) crop_info.width,(double) |
| crop_info.height,(double) crop_info.x,(double) crop_info.y); |
| (void) TransformImage(&annotate_image,geometry,(char *) NULL,exception); |
| } |
| metrics->pixels_per_em.x=(resolution.y/DefaultResolution)* |
| ExpandAffine(&draw_info->affine)*draw_info->pointsize; |
| metrics->pixels_per_em.y=metrics->pixels_per_em.x; |
| metrics->ascent=metrics->pixels_per_em.x; |
| metrics->descent=metrics->pixels_per_em.y/-5.0; |
| metrics->width=(double) annotate_image->columns/ |
| ExpandAffine(&draw_info->affine); |
| metrics->height=1.152*metrics->pixels_per_em.x; |
| metrics->max_advance=metrics->pixels_per_em.x; |
| 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=(-2.0); |
| metrics->underline_thickness=1.0; |
| if (draw_info->render == MagickFalse) |
| { |
| annotate_image=DestroyImage(annotate_image); |
| return(MagickTrue); |
| } |
| if (draw_info->fill.alpha != TransparentAlpha) |
| { |
| CacheView |
| *annotate_view; |
| |
| MagickBooleanType |
| sync; |
| |
| PixelInfo |
| fill_color; |
| |
| /* |
| Render fill color. |
| */ |
| if (image->alpha_trait == UndefinedPixelTrait) |
| (void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception); |
| if (annotate_image->alpha_trait == UndefinedPixelTrait) |
| (void) SetImageAlphaChannel(annotate_image,OpaqueAlphaChannel, |
| exception); |
| fill_color=draw_info->fill; |
| annotate_view=AcquireAuthenticCacheView(annotate_image,exception); |
| for (y=0; y < (ssize_t) annotate_image->rows; y++) |
| { |
| register ssize_t |
| x; |
| |
| register Quantum |
| *magick_restrict q; |
| |
| q=GetCacheViewAuthenticPixels(annotate_view,0,y,annotate_image->columns, |
| 1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) annotate_image->columns; x++) |
| { |
| GetFillColor(draw_info,x,y,&fill_color,exception); |
| SetPixelAlpha(annotate_image,ClampToQuantum((((double) QuantumScale* |
| GetPixelIntensity(annotate_image,q)*fill_color.alpha))),q); |
| SetPixelRed(annotate_image,fill_color.red,q); |
| SetPixelGreen(annotate_image,fill_color.green,q); |
| SetPixelBlue(annotate_image,fill_color.blue,q); |
| q+=GetPixelChannels(annotate_image); |
| } |
| sync=SyncCacheViewAuthenticPixels(annotate_view,exception); |
| if (sync == MagickFalse) |
| break; |
| } |
| annotate_view=DestroyCacheView(annotate_view); |
| (void) CompositeImage(image,annotate_image,OverCompositeOp,MagickTrue, |
| (ssize_t) ceil(offset->x-0.5),(ssize_t) ceil(offset->y-(metrics->ascent+ |
| metrics->descent)-0.5),exception); |
| } |
| annotate_image=DestroyImage(annotate_image); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + R e n d e r X 1 1 % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RenderX11() renders text on the image with an X11 font. It also returns the |
| % bounding box of the text relative to the image. |
| % |
| % The format of the RenderX11 method is: |
| % |
| % MagickBooleanType RenderX11(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 RenderX11(Image *image,const DrawInfo *draw_info, |
| const PointInfo *offset,TypeMetric *metrics,ExceptionInfo *exception) |
| { |
| MagickBooleanType |
| status; |
| |
| if (annotate_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&annotate_semaphore); |
| LockSemaphoreInfo(annotate_semaphore); |
| status=XRenderImage(image,draw_info,offset,metrics,exception); |
| UnlockSemaphoreInfo(annotate_semaphore); |
| return(status); |
| } |
