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| version 1.125, 2009/06/24 09:09:50 | version 1.140, 2012/06/08 11:44:01 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b image parser class. | Parser: @b image parser class. |
| Copyright(c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| static const char * const IDENT_IMAGE_C="$Date$"; | |
| /* | /* |
| jpegsize: gets the width and height (in pixels) of a jpeg file | jpegsize: gets the width and height (in pixels) of a jpeg file |
| Andrew Tong, werdna@ugcs.caltech.edu February 14, 1995 | Andrew Tong, werdna@ugcs.caltech.edu February 14, 1995 |
| Line 17 static const char * const IDENT_IMAGE_C= | Line 15 static const char * const IDENT_IMAGE_C= |
| */ | */ |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "gif.h" | #include "gif.h" |
| #include "pa_vmethod_frame.h" | |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| Line 29 static const char * const IDENT_IMAGE_C= | Line 25 static const char * const IDENT_IMAGE_C= |
| #include "pa_vdate.h" | #include "pa_vdate.h" |
| #include "pa_table.h" | #include "pa_table.h" |
| volatile const char * IDENT_IMAGE_C="$Id$"; | |
| // defines | // defines |
| static const String spacebar_width_name("space-width"); | static const String spacebar_width_name("space"); |
| static const String monospace_width_name("letter-width"); | static const String monospace_width_name("width"); |
| static const String letter_spacing_name("letter-space"); | static const String letter_spacing_name("spacing"); |
| // class | // class |
| class MImage: public Methoded { | class MImage: public Methoded { |
| public: // VStateless_class | public: // VStateless_class |
| Value* create_new_value(Pool&, HashStringValue*) { return new VImage(); } | Value* create_new_value(Pool&) { return new VImage(); } |
| public: | public: |
| MImage(); | MImage(); |
| public: // Methoded | |
| bool used_directly() { return true; } | |
| }; | }; |
| // globals | // globals |
| Line 731 static void measure_png(const String& or | Line 725 static void measure_png(const String& or |
| static void measure(const String& file_name, | static void measure(const String& file_name, |
| Measure_reader& reader, ushort& width, ushort& height, Value** exif) { | Measure_reader& reader, ushort& width, ushort& height, Value** exif) { |
| const char* file_name_cstr=file_name.cstr(String::L_FILE_SPEC); | const char* file_name_cstr=file_name.taint_cstr(String::L_FILE_SPEC); |
| if(const char* cext=strrchr(file_name_cstr, '.')) { | if(const char* cext=strrchr(file_name_cstr, '.')) { |
| cext++; | cext++; |
| if(strcasecmp(cext, "GIF")==0) | if(strcasecmp(cext, "GIF")==0) |
| Line 786 static void _measure(Request& r, MethodP | Line 780 static void _measure(Request& r, MethodP |
| file_read_action_under_lock(r.absolute(*file_name), | file_read_action_under_lock(r.absolute(*file_name), |
| "measure", file_measure_action, &info); | "measure", file_measure_action, &info); |
| } else { | } else { |
| VFile* vfile=data.as_vfile(); | VFile* vfile=data.as_vfile(String::L_AS_IS); |
| file_name=&vfile->fields().get(name_name)->as_string(); | file_name=&vfile->fields().get(name_name)->as_string(); |
| Measure_buf_reader reader( | Measure_buf_reader reader( |
| vfile->value_ptr(), | vfile->value_ptr(), |
| Line 806 struct Attrib_info { | Line 800 struct Attrib_info { |
| }; | }; |
| #endif | #endif |
| static void append_attrib_pair( | static void append_attrib_pair( |
| HashStringValue::key_type key, | HashStringValue::key_type key, |
| HashStringValue::value_type value, | HashStringValue::value_type value, |
| Attrib_info* info) { | Attrib_info* info) { |
| // skip user-specified and internal(starting with "line-") attributes | // skip user-specified, internal(starting with "line-") attributes and border attribute with empty value |
| if(info->skip && info->skip->get(key) || key.pos("line-")==0) | if( |
| (info->skip && info->skip->get(key)) | |
| || key.pos("line-")==0 | |
| || (key=="border" && !value->is_defined()) | |
| ) | |
| return; | return; |
| // src="a.gif" width=123 ismap[=-1] | // src="a.gif" width="123" ismap[=-1] |
| *info->tag << " " << key; | *info->tag << " " << key; |
| if(value->is_string() || value->as_int()>=0) | if(value->is_string() || value->as_int()>=0) |
| *info->tag << "=\"" << value->as_string() << "\""; | *info->tag << "=\"" << value->as_string() << "\""; |
| Line 828 static void _html(Request& r, MethodPara | Line 826 static void _html(Request& r, MethodPara |
| if(params.count()) { | if(params.count()) { |
| // for backward compatibility: someday was ^html{} | // for backward compatibility: someday was ^html{} |
| Value& vattribs=r.process_to_value(params[0], | Value& vattribs=r.process_to_value(params[0], false/*don't intercept string*/); |
| false/*don't intercept string*/); | |
| if(!vattribs.is_string()) // allow empty | if(!vattribs.is_string()) // allow empty |
| if((attribs=vattribs.get_hash())) { | if((attribs=vattribs.get_hash())) { |
| Attrib_info info={&tag, 0}; | Attrib_info info={&tag, 0}; |
| Line 851 static void _html(Request& r, MethodPara | Line 848 static void _html(Request& r, MethodPara |
| /// @test wrap FILE to auto-object | /// @test wrap FILE to auto-object |
| static gdImage* load(Request& r, | static gdImage* load(Request& r, |
| const String& file_name){ | const String& file_name){ |
| const char* file_name_cstr=r.absolute(file_name).cstr(String::L_FILE_SPEC); | const char* file_name_cstr=r.absolute(file_name).taint_cstr(String::L_FILE_SPEC); |
| if(FILE *f=fopen(file_name_cstr, "rb")) { | if(FILE *f=fopen(file_name_cstr, "rb")) { |
| gdImage* image=new gdImage; | gdImage* image=new gdImage; |
| bool ok=image->CreateFromGif(f); | bool ok=image->CreateFromGif(f); |
| Line 891 static void _create(Request& r, MethodPa | Line 888 static void _create(Request& r, MethodPa |
| static void _gif(Request& r, MethodParams& params) { | static void _gif(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| const String *file_name=0; | const String *file_name=params.count()>0?¶ms.as_string(0, FILE_NAME_MUST_BE_STRING):0; |
| if(params.count()>0) | |
| file_name=¶ms.as_string(0, FILE_NAME_MUST_BE_STRING); | |
| gdBuf buf=image.Gif(); | gdBuf buf=image.Gif(); |
| VFile& vfile=*new VFile; | VFile& vfile=*new VFile; |
| Value* content_type=new VString(*new String("image/gif")); | |
| vfile.set(false/*not tainted*/, | vfile.set(false/*not tainted*/, |
| (const char*)buf.ptr, buf.size, | (const char*)buf.ptr, buf.size, |
| file_name? file_name->cstr(String::L_FILE_SPEC): 0, | file_name, |
| content_type); | new VString(*new String("image/gif"))); |
| vfile.set_mode(false/*binary*/); | |
| r.write_no_lang(vfile); | r.write_no_lang(vfile); |
| } | } |
| Line 961 static void add_point(Table::element_typ | Line 958 static void add_point(Table::element_typ |
| (*p)++; | (*p)++; |
| } | } |
| #endif | #endif |
| #ifndef DOXYGEN | |
| static void add_point(int x, int y, | |
| gdImage::Point **p) { | |
| (**p).x=x; | |
| (**p).y=y; | |
| (*p)++; | |
| } | |
| #endif | |
| static void _replace(Request& r, MethodParams& params) { | static void _replace(Request& r, MethodParams& params) { |
| int src_color=params.as_int(0, "src color must be int", r); | |
| int dest_color=params.as_int(1, "dest color must be int", r); | |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(2, COORDINATES_MUST_NOT_BE_CODE).get_table(); | gdImage::Point* all_p=0; |
| if(!table) | size_t count=0; |
| throw Exception(PARSER_RUNTIME, | if(params.count() == 3){ |
| 0, | Table* table=params.as_table(2, "coordinates"); |
| "coordinates must be table"); | count=table->count(); |
| all_p=new(PointerFreeGC) gdImage::Point[count]; | |
| gdImage::Point* add_p=all_p; | |
| table->for_each(add_point, &add_p); | |
| } else { | |
| int max_x=image.SX()-1; | |
| int max_y=image.SY()-1; | |
| if(max_x > 0 && max_y > 0){ | |
| count=4; | |
| all_p=new(PointerFreeGC) gdImage::Point[count]; | |
| gdImage::Point* add_p=all_p; | |
| add_point(0, 0, &add_p); | |
| add_point(max_x, 0, &add_p); | |
| add_point(max_x, max_y, &add_p); | |
| add_point(0, max_y, &add_p); | |
| } | |
| } | |
| gdImage::Point *all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | if(count) |
| gdImage::Point *add_p=all_p; | image.FilledPolygonReplaceColor(all_p, count, image.Color(src_color), image.Color(dest_color)); |
| table->for_each(add_point, &add_p); | |
| image.FilledPolygonReplaceColor(all_p, table->count(), | |
| image.Color(params.as_int(0, "src color must be int", r)), | |
| image.Color(params.as_int(1, "dest color must be int", r))); | |
| } | } |
| static void _polyline(Request& r, MethodParams& params) { | static void _polyline(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, COORDINATES_MUST_NOT_BE_CODE).get_table(); | Table* table=params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 998 static void _polyline(Request& r, Method | Line 1014 static void _polyline(Request& r, Method |
| static void _polygon(Request& r, MethodParams& params) { | static void _polygon(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, COORDINATES_MUST_NOT_BE_CODE).get_table(); | Table* table=(Table*)params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 1014 static void _polygon(Request& r, MethodP | Line 1026 static void _polygon(Request& r, MethodP |
| static void _polybar(Request& r, MethodParams& params) { | static void _polybar(Request& r, MethodParams& params) { |
| gdImage& image=GET_SELF(r, VImage).image(); | gdImage& image=GET_SELF(r, VImage).image(); |
| Table* table=params.as_no_junction(1, COORDINATES_MUST_NOT_BE_CODE).get_table(); | Table* table=(Table*)params.as_table(1, "coordinates"); |
| if(!table) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "coordinates must be table"); | |
| gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; | gdImage::Point* all_p=new(PointerFreeGC) gdImage::Point[table->count()]; |
| gdImage::Point *add_p=all_p; | gdImage::Point *add_p=all_p; |
| Line 1033 static void _polybar(Request& r, MethodP | Line 1041 static void _polybar(Request& r, MethodP |
| // Font class | // Font class |
| Font::Font(//, | Font::Font( |
| Charset& asource_charset, | |
| const String& aalphabet, | const String& aalphabet, |
| gdImage* aifont, int aheight, int amonospace, int aspacebarspace, int aletterspacing): | gdImage* aifont, int aheight, int amonospace, int aspacebarspace, int aletterspacing): |
| height(aheight), monospace(amonospace), spacebarspace(aspacebarspace), | fsource_charset(asource_charset), |
| height(aheight), | |
| monospace(amonospace), | |
| spacebarspace(aspacebarspace), | |
| letterspacing(aletterspacing), | letterspacing(aletterspacing), |
| ifont(aifont), | ifont(aifont), |
| alphabet(aalphabet) { | alphabet(aalphabet) { |
| if(fsource_charset.isUTF8()){ | |
| size_t index=0; | |
| for(UTF8_string_iterator i(alphabet); i.has_next(); ) | |
| fletter2index.put_dont_replace(i.next(), index++); | |
| } | |
| } | } |
| /* ******************************** char ********************************** */ | /* ******************************** char ********************************** */ |
| Line 1049 size_t Font::index_of(char ch) { | Line 1067 size_t Font::index_of(char ch) { |
| return alphabet.pos(ch); | return alphabet.pos(ch); |
| } | } |
| size_t Font::index_of(XMLCh ch) { | |
| if(ch==' ') return STRING_NOT_FOUND; | |
| return fletter2index.get(ch); | |
| } | |
| int Font::index_width(size_t index) { | int Font::index_width(size_t index) { |
| if(index==STRING_NOT_FOUND) | if(index==STRING_NOT_FOUND) |
| return spacebarspace; | return spacebarspace; |
| Line 1076 int Font::step_width(int index) { | Line 1099 int Font::step_width(int index) { |
| int Font::string_width(const String& s){ | int Font::string_width(const String& s){ |
| const char* cstr=s.cstr(); | const char* cstr=s.cstr(); |
| int result=0; | int result=0; |
| for(const char* current=cstr; *current; current++) | |
| result+=step_width(index_of(*current)); | if(fsource_charset.isUTF8()){ |
| for(UTF8_string_iterator i(s); i.has_next(); ) | |
| result+=step_width(index_of(i.next())); | |
| } else { | |
| for(const char* current=cstr; *current; current++) | |
| result+=step_width(index_of(*current)); | |
| } | |
| return result; | return result; |
| } | } |
| void Font::string_display(gdImage& image, int x, int y, const String& s){ | void Font::string_display(gdImage& image, int x, int y, const String& s){ |
| const char* cstr=s.cstr(); | const char* cstr=s.cstr(); |
| for(const char* current=cstr; *current; current++) { | |
| size_t index=index_of(*current); | if(fsource_charset.isUTF8()){ |
| index_display(image, x, y, index); | for(UTF8_string_iterator i(s); i.has_next(); ){ |
| x+=step_width(index); | size_t index=index_of(i.next()); |
| index_display(image, x, y, index); | |
| x+=step_width(index); | |
| } | |
| } else { | |
| for(const char* current=cstr; *current; current++) { | |
| size_t index=index_of(*current); | |
| index_display(image, x, y, index); | |
| x+=step_width(index); | |
| } | |
| } | } |
| } | } |
| Line 1095 void Font::string_display(gdImage& image | Line 1134 void Font::string_display(gdImage& image |
| static void _font(Request& r, MethodParams& params) { | static void _font(Request& r, MethodParams& params) { |
| const String& alphabet=params.as_string(0, "alphabet must not be code"); | const String& alphabet=params.as_string(0, "alphabet must not be code"); |
| if(!alphabet.length()) | size_t alphabet_length=alphabet.length(r.charsets.source()); |
| if(!alphabet_length) | |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, |
| 0, | 0, |
| "alphabet must not be empty"); | "alphabet must not be empty"); |
| gdImage* image=load(r, params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE)); | gdImage* image=load(r, params.as_string(1, FILE_NAME_MUST_NOT_BE_CODE)); |
| int spacebar_width=0; | int spacebar_width=image->SX(); |
| int monospace_width=0; // proportional | int monospace_width=0; // proportional |
| int letter_spacing=1; | int letter_spacing=1; |
| if(params.count()>2){ | if(params.count()>2){ |
| Line 1128 static void _font(Request& r, MethodPara | Line 1168 static void _font(Request& r, MethodPara |
| letter_spacing=r.process_to_value(*vletter_spacing).as_int(); | letter_spacing=r.process_to_value(*vletter_spacing).as_int(); |
| } | } |
| if(valid_options!=options->count()) | if(valid_options!=options->count()) |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION); |
| 0, | |
| "called with invalid option"); | |
| } else { | } else { |
| // backward | // backward |
| spacebar_width=params.as_int(2, "spacebar_width must be int", r); | spacebar_width=params.as_int(2, "spacebar_width must be int", r); |
| Line 1142 static void _font(Request& r, MethodPara | Line 1180 static void _font(Request& r, MethodPara |
| } | } |
| } | } |
| if(int remainder=image->SY() % alphabet.length()) | if(int remainder=image->SY() % alphabet_length) |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, |
| 0, | 0, |
| "font-file height(%d) not divisable by alphabet size(%d), remainder=%d", | "font-file height(%d) not divisable by alphabet size(%d), remainder=%d", |
| image->SY(), alphabet.length(), remainder); | image->SY(), alphabet_length, remainder); |
| GET_SELF(r, VImage).set_font(new Font( | GET_SELF(r, VImage).set_font(new Font( |
| r.charsets.source(), | |
| alphabet, | alphabet, |
| image, | image, |
| image->SY() / alphabet.length(), monospace_width, spacebar_width, letter_spacing)); | image->SY() / alphabet_length, monospace_width, spacebar_width, letter_spacing)); |
| } | } |
| static void _text(Request& r, MethodParams& params) { | static void _text(Request& r, MethodParams& params) { |
| Line 1213 static void _circle(Request& r, MethodPa | Line 1252 static void _circle(Request& r, MethodPa |
| gdImage& as_image(MethodParams& params, int index, const char* msg) { | gdImage& as_image(MethodParams& params, int index, const char* msg) { |
| Value& value=params.as_no_junction(index, msg); | Value& value=params.as_no_junction(index, msg); |
| if(Value* vimage=value.as(VIMAGE_TYPE, false)) { | if(Value* vimage=value.as(VIMAGE_TYPE)) { |
| return static_cast<VImage *>(vimage)->image(); | return static_cast<VImage *>(vimage)->image(); |
| } else | } else |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, |
| Line 1291 MImage::MImage(): Methoded("image") { | Line 1330 MImage::MImage(): Methoded("image") { |
| add_native_method("bar", Method::CT_DYNAMIC, _bar, 5, 5); | add_native_method("bar", Method::CT_DYNAMIC, _bar, 5, 5); |
| // ^image.replace(color-source;color-dest)[table x:y] | // ^image.replace(color-source;color-dest)[table x:y] |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 3, 3); | // ^image.replace(color-source;color-dest) |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 2, 3); | |
| // ^image.polyline(color)[table x:y] | // ^image.polyline(color)[table x:y] |
| add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2); | add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2); |