/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M M AAA GGGG IIIII CCCC K K % % MM MM A A G I C K K % % M M M AAAAA G GGG I C KKK % % M M A A G G I C K K % % M M A A GGGG IIIII CCCC K K % % % % W W AAA N N DDDD % % W W A A NN N D D % % W W W AAAAA N N N D D % % WW WW A A N NN D D % % W W A A N N DDDD % % % % % % MagickWand Wand Methods % % % % Software Design % % Cristy % % August 2003 % % % % % % Copyright 1999-2021 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. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % */ /* Include declarations. */ #include "MagickWand/studio.h" #include "MagickWand/MagickWand.h" #include "MagickWand/magick-wand-private.h" #include "MagickWand/wand.h" /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % C l e a r M a g i c k W a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ClearMagickWand() clears resources associated with the wand, leaving the % wand blank, and ready to be used for a new set of images. % % The format of the ClearMagickWand method is: % % void ClearMagickWand(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport void ClearMagickWand(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->image_info=DestroyImageInfo(wand->image_info); wand->images=DestroyImageList(wand->images); wand->image_info=AcquireImageInfo(); wand->insert_before=MagickFalse; wand->image_pending=MagickFalse; ClearMagickException(wand->exception); wand->debug=IsEventLogging(); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % C l o n e M a g i c k W a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % CloneMagickWand() makes an exact copy of the specified wand. % % The format of the CloneMagickWand method is: % % MagickWand *CloneMagickWand(const MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport MagickWand *CloneMagickWand(const MagickWand *wand) { MagickWand *clone_wand; assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); clone_wand=(MagickWand *) AcquireCriticalMemory(sizeof(*clone_wand)); (void) memset(clone_wand,0,sizeof(*clone_wand)); clone_wand->id=AcquireWandId(); (void) FormatLocaleString(clone_wand->name,MagickPathExtent,"%s-%.20g", MagickWandId,(double) clone_wand->id); clone_wand->exception=AcquireExceptionInfo(); InheritException(clone_wand->exception,wand->exception); clone_wand->image_info=CloneImageInfo(wand->image_info); clone_wand->images=CloneImageList(wand->images,clone_wand->exception); clone_wand->insert_before=MagickFalse; clone_wand->image_pending=MagickFalse; clone_wand->debug=IsEventLogging(); if (clone_wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",clone_wand->name); clone_wand->signature=MagickWandSignature; return(clone_wand); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % D e s t r o y M a g i c k W a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % DestroyMagickWand() deallocates memory associated with an MagickWand. % % The format of the DestroyMagickWand method is: % % MagickWand *DestroyMagickWand(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport MagickWand *DestroyMagickWand(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->images=DestroyImageList(wand->images); if (wand->image_info != (ImageInfo *) NULL ) wand->image_info=DestroyImageInfo(wand->image_info); if (wand->exception != (ExceptionInfo *) NULL ) wand->exception=DestroyExceptionInfo(wand->exception); RelinquishWandId(wand->id); wand->signature=(~MagickWandSignature); wand=(MagickWand *) RelinquishMagickMemory(wand); return(wand); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % I s M a g i c k W a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % IsMagickWand() returns MagickTrue if the wand is verified as a magick wand. % % The format of the IsMagickWand method is: % % MagickBooleanType IsMagickWand(const MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport MagickBooleanType IsMagickWand(const MagickWand *wand) { if (wand == (const MagickWand *) NULL) return(MagickFalse); if (wand->signature != MagickWandSignature) return(MagickFalse); if (LocaleNCompare(wand->name,MagickWandId,strlen(MagickWandId)) != 0) return(MagickFalse); return(MagickTrue); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k C l e a r E x c e p t i o n % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickClearException() clears any exceptions associated with the wand. % % The format of the MagickClearException method is: % % MagickBooleanType MagickClearException(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport MagickBooleanType MagickClearException(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); ClearMagickException(wand->exception); return(MagickTrue); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k G e t E x c e p t i o n % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickGetException() returns the severity, reason, and description of any % error that occurs when using other methods in this API. % % The format of the MagickGetException method is: % % char *MagickGetException(const MagickWand *wand,ExceptionType *severity) % % A description of each parameter follows: % % o wand: the magick wand. % % o severity: the severity of the error is returned here. % */ WandExport char *MagickGetException(const MagickWand *wand, ExceptionType *severity) { char *description; assert(wand != (const MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); assert(severity != (ExceptionType *) NULL); *severity=wand->exception->severity; description=(char *) AcquireQuantumMemory(2UL*MagickPathExtent, sizeof(*description)); if (description == (char *) NULL) { (void) ThrowMagickException(wand->exception,GetMagickModule(),WandError, "MemoryAllocationFailed","`%s'",wand->name); return((char *) NULL); } *description='\0'; if (wand->exception->reason != (char *) NULL) (void) CopyMagickString(description,GetLocaleExceptionMessage( wand->exception->severity,wand->exception->reason),MagickPathExtent); if (wand->exception->description != (char *) NULL) { (void) ConcatenateMagickString(description," (",MagickPathExtent); (void) ConcatenateMagickString(description,GetLocaleExceptionMessage( wand->exception->severity,wand->exception->description),MagickPathExtent); (void) ConcatenateMagickString(description,")",MagickPathExtent); } return(description); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k G e t E x c e p t i o n T y p e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickGetExceptionType() returns the exception type associated with the % wand. If no exception has occurred, UndefinedExceptionType is returned. % % The format of the MagickGetExceptionType method is: % % ExceptionType MagickGetExceptionType(const MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport ExceptionType MagickGetExceptionType(const MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); return(wand->exception->severity); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k G e t I t e r a t o r I n d e x % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickGetIteratorIndex() returns the position of the iterator in the image % list. % % The format of the MagickGetIteratorIndex method is: % % ssize_t MagickGetIteratorIndex(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport ssize_t MagickGetIteratorIndex(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); if (wand->images == (Image *) NULL) { (void) ThrowMagickException(wand->exception,GetMagickModule(),WandError, "ContainsNoIterators","`%s'",wand->name); return(-1); } return(GetImageIndexInList(wand->images)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y C o n f i g u r e O p t i o n % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryConfigureOption() returns the value associated with the specified % configure option. % % The format of the MagickQueryConfigureOption function is: % % char *MagickQueryConfigureOption(const char *option) % % A description of each parameter follows: % % o option: the option name. % */ WandExport char *MagickQueryConfigureOption(const char *option) { char *value; const ConfigureInfo **configure_info; ExceptionInfo *exception; size_t number_options; exception=AcquireExceptionInfo(); configure_info=GetConfigureInfoList(option,&number_options,exception); exception=DestroyExceptionInfo(exception); if (configure_info == (const ConfigureInfo **) NULL) return((char *) NULL); value=(char *) NULL; if (number_options != 0) value=AcquireString(configure_info[0]->value); configure_info=(const ConfigureInfo **) RelinquishMagickMemory((void *) configure_info); return(value); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y C o n f i g u r e O p t i o n s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryConfigureOptions() returns any configure options that match the % specified pattern (e.g. "*" for all). Options include NAME, VERSION, % LIB_VERSION, etc. % % The format of the MagickQueryConfigureOptions function is: % % char **MagickQueryConfigureOptions(const char *pattern, % size_t *number_options) % % A description of each parameter follows: % % o pattern: Specifies a pointer to a text string containing a pattern. % % o number_options: Returns the number of configure options in the list. % */ WandExport char **MagickQueryConfigureOptions(const char *pattern, size_t *number_options) { char **options; ExceptionInfo *exception; exception=AcquireExceptionInfo(); options=GetConfigureList(pattern,number_options,exception); exception=DestroyExceptionInfo(exception); return(options); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y F o n t M e t r i c s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryFontMetrics() returns a 13 element array representing the % following font metrics: % % Element Description % ------------------------------------------------- % 0 character width % 1 character height % 2 ascender % 3 descender % 4 text width % 5 text height % 6 maximum horizontal advance % 7 bounding box: x1 % 8 bounding box: y1 % 9 bounding box: x2 % 10 bounding box: y2 % 11 origin: x % 12 origin: y % % The format of the MagickQueryFontMetrics method is: % % double *MagickQueryFontMetrics(MagickWand *wand, % const DrawingWand *drawing_wand,const char *text) % % A description of each parameter follows: % % o wand: the Magick wand. % % o drawing_wand: the drawing wand. % % o text: the text. % */ WandExport double *MagickQueryFontMetrics(MagickWand *wand, const DrawingWand *drawing_wand,const char *text) { double *font_metrics; DrawInfo *draw_info; MagickBooleanType status; TypeMetric metrics; assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); assert(drawing_wand != (const DrawingWand *) NULL); if (wand->images == (Image *) NULL) { (void) ThrowMagickException(wand->exception,GetMagickModule(),WandError, "ContainsNoImages","`%s'",wand->name); return((double *) NULL); } font_metrics=(double *) AcquireQuantumMemory(13UL,sizeof(*font_metrics)); if (font_metrics == (double *) NULL) return((double *) NULL); draw_info=PeekDrawingWand(drawing_wand); if (draw_info == (DrawInfo *) NULL) { font_metrics=(double *) RelinquishMagickMemory(font_metrics); return((double *) NULL); } (void) CloneString(&draw_info->text,text); (void) memset(&metrics,0,sizeof(metrics)); status=GetTypeMetrics(wand->images,draw_info,&metrics,wand->exception); draw_info=DestroyDrawInfo(draw_info); if (status == MagickFalse) { font_metrics=(double *) RelinquishMagickMemory(font_metrics); return((double *) NULL); } font_metrics[0]=metrics.pixels_per_em.x; font_metrics[1]=metrics.pixels_per_em.y; font_metrics[2]=metrics.ascent; font_metrics[3]=metrics.descent; font_metrics[4]=metrics.width; font_metrics[5]=metrics.height; font_metrics[6]=metrics.max_advance; font_metrics[7]=metrics.bounds.x1; font_metrics[8]=metrics.bounds.y1; font_metrics[9]=metrics.bounds.x2; font_metrics[10]=metrics.bounds.y2; font_metrics[11]=metrics.origin.x; font_metrics[12]=metrics.origin.y; return(font_metrics); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y M u l t i l i n e F o n t M e t r i c s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryMultilineFontMetrics() returns a 13 element array representing the % following font metrics: % % Element Description % ------------------------------------------------- % 0 character width % 1 character height % 2 ascender % 3 descender % 4 text width % 5 text height % 6 maximum horizontal advance % 7 bounding box: x1 % 8 bounding box: y1 % 9 bounding box: x2 % 10 bounding box: y2 % 11 origin: x % 12 origin: y % % This method is like MagickQueryFontMetrics() but it returns the maximum text % width and height for multiple lines of text. % % The format of the MagickQueryFontMetrics method is: % % double *MagickQueryMultilineFontMetrics(MagickWand *wand, % const DrawingWand *drawing_wand,const char *text) % % A description of each parameter follows: % % o wand: the Magick wand. % % o drawing_wand: the drawing wand. % % o text: the text. % */ WandExport double *MagickQueryMultilineFontMetrics(MagickWand *wand, const DrawingWand *drawing_wand,const char *text) { double *font_metrics; DrawInfo *draw_info; MagickBooleanType status; TypeMetric metrics; assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); assert(drawing_wand != (const DrawingWand *) NULL); if (wand->images == (Image *) NULL) { (void) ThrowMagickException(wand->exception,GetMagickModule(),WandError, "ContainsNoImages","`%s'",wand->name); return((double *) NULL); } font_metrics=(double *) AcquireQuantumMemory(13UL,sizeof(*font_metrics)); if (font_metrics == (double *) NULL) return((double *) NULL); draw_info=PeekDrawingWand(drawing_wand); if (draw_info == (DrawInfo *) NULL) { font_metrics=(double *) RelinquishMagickMemory(font_metrics); return((double *) NULL); } (void) CloneString(&draw_info->text,text); (void) memset(&metrics,0,sizeof(metrics)); status=GetMultilineTypeMetrics(wand->images,draw_info,&metrics, wand->exception); draw_info=DestroyDrawInfo(draw_info); if (status == MagickFalse) { font_metrics=(double *) RelinquishMagickMemory(font_metrics); return((double *) NULL); } font_metrics[0]=metrics.pixels_per_em.x; font_metrics[1]=metrics.pixels_per_em.y; font_metrics[2]=metrics.ascent; font_metrics[3]=metrics.descent; font_metrics[4]=metrics.width; font_metrics[5]=metrics.height; font_metrics[6]=metrics.max_advance; font_metrics[7]=metrics.bounds.x1; font_metrics[8]=metrics.bounds.y1; font_metrics[9]=metrics.bounds.x2; font_metrics[10]=metrics.bounds.y2; font_metrics[11]=metrics.origin.x; font_metrics[12]=metrics.origin.y; return(font_metrics); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y F o n t s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryFonts() returns any font that match the specified pattern (e.g. % "*" for all). % % The format of the MagickQueryFonts function is: % % char **MagickQueryFonts(const char *pattern,size_t *number_fonts) % % A description of each parameter follows: % % o pattern: Specifies a pointer to a text string containing a pattern. % % o number_fonts: Returns the number of fonts in the list. % */ WandExport char **MagickQueryFonts(const char *pattern, size_t *number_fonts) { char **fonts; ExceptionInfo *exception; exception=AcquireExceptionInfo(); fonts=GetTypeList(pattern,number_fonts,exception); exception=DestroyExceptionInfo(exception); return(fonts); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k Q u e r y F o r m a t s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickQueryFormats() returns any image formats that match the specified % pattern (e.g. "*" for all). % % The format of the MagickQueryFormats function is: % % char **MagickQueryFormats(const char *pattern,size_t *number_formats) % % A description of each parameter follows: % % o pattern: Specifies a pointer to a text string containing a pattern. % % o number_formats: This integer returns the number of image formats in the % list. % */ WandExport char **MagickQueryFormats(const char *pattern, size_t *number_formats) { char **formats; ExceptionInfo *exception; exception=AcquireExceptionInfo(); formats=GetMagickList(pattern,number_formats,exception); exception=DestroyExceptionInfo(exception); return(formats); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k R e l i n q u i s h M e m o r y % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickRelinquishMemory() relinquishes memory resources returned by such % methods as MagickIdentifyImage(), MagickGetException(), etc. % % The format of the MagickRelinquishMemory method is: % % void *MagickRelinquishMemory(void *resource) % % A description of each parameter follows: % % o resource: Relinquish the memory associated with this resource. % */ WandExport void *MagickRelinquishMemory(void *memory) { (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); return(RelinquishMagickMemory(memory)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k R e s e t I t e r a t o r % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickResetIterator() resets the wand iterator. % % It is typically used either before iterating though images, or before % calling specific functions such as MagickAppendImages() to append all % images together. % % Afterward you can use MagickNextImage() to iterate over all the images % in a wand container, starting with the first image. % % Using this before MagickAddImages() or MagickReadImages() will cause % new images to be inserted between the first and second image. % % The format of the MagickResetIterator method is: % % void MagickResetIterator(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport void MagickResetIterator(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->images=GetFirstImageInList(wand->images); wand->insert_before=MagickFalse; /* Insert/add after current (first) image */ wand->image_pending=MagickTrue; /* NextImage will set first image */ } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k S e t F i r s t I t e r a t o r % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickSetFirstIterator() sets the wand iterator to the first image. % % After using any images added to the wand using MagickAddImage() or % MagickReadImage() will be prepended before any image in the wand. % % Also the current image has been set to the first image (if any) in the % Magick Wand. Using MagickNextImage() will then set the current image % to the second image in the list (if present). % % This operation is similar to MagickResetIterator() but differs in how % MagickAddImage(), MagickReadImage(), and MagickNextImage() behaves % afterward. % % The format of the MagickSetFirstIterator method is: % % void MagickSetFirstIterator(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport void MagickSetFirstIterator(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->images=GetFirstImageInList(wand->images); wand->insert_before=MagickTrue; /* Insert/add before the first image */ wand->image_pending=MagickFalse; /* NextImage will set next image */ } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k S e t I t e r a t o r I n d e x % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickSetIteratorIndex() set the iterator to the given position in the % image list specified with the index parameter. A zero index will set % the first image as current, and so on. Negative indexes can be used % to specify an image relative to the end of the images in the wand, with % -1 being the last image in the wand. % % If the index is invalid (range too large for number of images in wand) % the function will return MagickFalse, but no 'exception' will be raised, % as it is not actually an error. In that case the current image will not % change. % % After using any images added to the wand using MagickAddImage() or % MagickReadImage() will be added after the image indexed, regardless % of if a zero (first image in list) or negative index (from end) is used. % % Jumping to index 0 is similar to MagickResetIterator() but differs in how % MagickNextImage() behaves afterward. % % The format of the MagickSetIteratorIndex method is: % % MagickBooleanType MagickSetIteratorIndex(MagickWand *wand, % const ssize_t index) % % A description of each parameter follows: % % o wand: the magick wand. % % o index: the scene number. % */ WandExport MagickBooleanType MagickSetIteratorIndex(MagickWand *wand, const ssize_t index) { Image *image; assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); if (wand->images == (Image *) NULL) return(MagickFalse); image=GetImageFromList(wand->images,index); if (image == (Image *) NULL) return(MagickFalse); /* this is not an exception! Just range error. */ wand->images=image; wand->insert_before=MagickFalse; /* Insert/Add after (this) image */ wand->image_pending=MagickFalse; /* NextImage will set next image */ return(MagickTrue); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k S e t L a s t I t e r a t o r % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickSetLastIterator() sets the wand iterator to the last image. % % The last image is actually the current image, and the next use of % MagickPreviousImage() will not change this allowing this function to be % used to iterate over the images in the reverse direction. In this sense it % is more like MagickResetIterator() than MagickSetFirstIterator(). % % Typically this function is used before MagickAddImage(), MagickReadImage() % functions to ensure new images are appended to the very end of wand's image % list. % % The format of the MagickSetLastIterator method is: % % void MagickSetLastIterator(MagickWand *wand) % % A description of each parameter follows: % % o wand: the magick wand. % */ WandExport void MagickSetLastIterator(MagickWand *wand) { assert(wand != (MagickWand *) NULL); assert(wand->signature == MagickWandSignature); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->images=GetLastImageInList(wand->images); wand->insert_before=MagickFalse; /* Insert/add after current (last) image */ wand->image_pending=MagickTrue; /* PreviousImage will return last image */ } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k W a n d G e n e s i s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickWandGenesis() initializes the MagickWand environment. % % The format of the MagickWandGenesis method is: % % void MagickWandGenesis(void) % */ WandExport void MagickWandGenesis(void) { if (IsMagickCoreInstantiated() == MagickFalse) MagickCoreGenesis((char *) NULL,MagickFalse); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % M a g i c k W a n d T e r m i n u s % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % MagickWandTerminus() terminates the MagickWand environment. % % The format of the MagickWandTerminus method is: % % void MagickWandTerminus(void) % */ WandExport void MagickWandTerminus(void) { DestroyWandIds(); MagickCoreTerminus(); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % N e w M a g i c k W a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % NewMagickWand() returns a wand required for all other methods in the API. % A fatal exception is thrown if there is not enough memory to allocate the % wand. Use DestroyMagickWand() to dispose of the wand when it is no longer % needed. % % The format of the NewMagickWand method is: % % MagickWand *NewMagickWand(void) % */ WandExport MagickWand *NewMagickWand(void) { const char *quantum; MagickWand *wand; size_t depth; depth=MAGICKCORE_QUANTUM_DEPTH; quantum=GetMagickQuantumDepth(&depth); if (depth != MAGICKCORE_QUANTUM_DEPTH) ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum); wand=(MagickWand *) AcquireMagickMemory(sizeof(*wand)); if (wand == (MagickWand *) NULL) ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed", GetExceptionMessage(errno)); (void) memset(wand,0,sizeof(*wand)); wand->id=AcquireWandId(); (void) FormatLocaleString(wand->name,MagickPathExtent,"%s-%.20g",MagickWandId, (double) wand->id); wand->images=NewImageList(); wand->image_info=AcquireImageInfo(); wand->exception=AcquireExceptionInfo(); wand->debug=IsEventLogging(); if (wand->debug != MagickFalse) (void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name); wand->signature=MagickWandSignature; return(wand); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % N e w M a g i c k W a n d F r o m I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % NewMagickWandFromImage() returns a wand with an image. % % The format of the NewMagickWandFromImage method is: % % MagickWand *NewMagickWandFromImage(const Image *image) % % A description of each parameter follows: % % o image: the image. % */ WandExport MagickWand *NewMagickWandFromImage(const Image *image) { MagickWand *wand; wand=NewMagickWand(); wand->images=CloneImage(image,0,0,MagickTrue,wand->exception); return(wand); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % I s M a g i c k W a n d I n s t a n t i a t e d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % IsMagickWandInstantiated() returns MagickTrue if the ImageMagick environment % is currently instantiated-- that is, MagickWandGenesis() has been called but % MagickWandTerminus() has not. % % The format of the IsMagickWandInstantiated method is: % % MagickBooleanType IsMagickWandInstantiated(void) % */ MagickExport MagickBooleanType IsMagickWandInstantiated(void) { return(IsMagickCoreInstantiated()); }