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| version 1.38, 2001/09/01 14:49:01 | version 1.78, 2002/11/21 09:47:34 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b image parser class. | Parser: @b image parser class. |
| Copyright(c) 2001 ArtLebedev Group(http://www.artlebedev.com) | Copyright(c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | |
| Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf) | |
| $Id$ | |
| */ | */ |
| static const char *RCSId="$Id$"; | |
| static const char* 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 |
| Line 27 static const char *RCSId="$Id$"; | Line 25 static const char *RCSId="$Id$"; |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| #include "pa_vimage.h" | #include "pa_vimage.h" |
| // defines | |
| #define IMAGE_CLASS_NAME "image" | |
| // class | // class |
| class MImage : public Methoded { | class MImage : public Methoded { |
| Line 47 public: // Methoded | Line 41 public: // Methoded |
| // helpers | // helpers |
| /// simple buffered reader[from memory/file], used in _measure | #ifndef DOXYGEN |
| class Measure_reader { | class Measure_reader { |
| public: | public: |
| enum { READ_CHUNK_SIZE=0x400*10 };// 10K | virtual size_t read(const void *&buf, size_t limit)=0; |
| typedef size_t(*Func)(void *& buf, size_t limit, void *info); | virtual void seek(long delta)=0; |
| }; | |
| Measure_reader(Func afunc, void *ainfo) : | class Measure_file_reader: public Measure_reader { |
| func(afunc), info(ainfo), | public: |
| chunk(0), offset(0), size(0) { | Measure_file_reader(Pool& apool, int af, const String& afile_name, const char *afname): |
| pool(apool), file_name(afile_name), fname(afname), f(af) { | |
| } | } |
| size_t read(void *&buf, size_t limit) { | /*override*/size_t read(const void *&abuf, size_t limit) { |
| if(offset+limit>size) // nothing left | if(limit==0) |
| if(offset==0 || limit==1) { // only one-byte continuations allowed | |
| size=(*func)(chunk, READ_CHUNK_SIZE, info); | |
| offset=0; | |
| } else | |
| return 0;// as if EOF | |
| if(!size) // EOF | |
| return 0; | return 0; |
| // something left | void *lbuf=pool.malloc(limit); |
| size_t read_size=min(offset+limit, size)-offset; | size_t read_size=(size_t)::read(f, lbuf, limit); abuf=lbuf; |
| buf=((unsigned char *)chunk)+offset; | if(ssize_t(read_size)<0 || read_size>limit) |
| offset+=read_size; | throw Exception(0, |
| &file_name, | |
| "measure failed: actually read %lu bytes count not in [0..%lu] valid range", | |
| read_size, limit); | |
| return read_size; | return read_size; |
| } | } |
| /*override*/void seek(long delta) { | |
| if(lseek(f, delta, SEEK_CUR)<0) | |
| throw Exception("file.seek", | |
| &file_name, | |
| "seek(delta=%ld) failed: %s (%d), actual filename '%s'", | |
| delta, strerror(errno), errno, fname); | |
| } | |
| private: | |
| Pool& pool; | |
| const String& file_name; const char *fname; | |
| int f; | |
| }; | |
| class Measure_buf_reader: public Measure_reader { | |
| public: | |
| Measure_buf_reader(const void *abuf, size_t asize, const String& afile_name): | |
| buf(abuf), size(asize), file_name(afile_name), offset(0) { | |
| } | |
| /*override*/size_t read(const void *&abuf, size_t limit) { | |
| size_t to_read=min(limit, size-offset); | |
| abuf=(const char*)buf+offset; | |
| offset+=to_read; | |
| return to_read; | |
| } | |
| /*override*/void seek(long delta) { | |
| size_t new_offset=offset+delta; | |
| if((ssize_t)new_offset<0 || new_offset>size) | |
| throw Exception("file.seek", | |
| &file_name, | |
| "seek(offset=%l) failed: out of buffer, new_offset>size (%l>%l) or new_offset<0", | |
| delta, new_offset, size); | |
| offset=new_offset; | |
| } | |
| private: | private: |
| Func func; | |
| void *info; | |
| void *chunk; | const void *buf; size_t size; |
| const String& file_name; | |
| size_t offset; | size_t offset; |
| size_t size; | }; |
| #endif | |
| /// PNG file header | |
| struct PNG_Header { | |
| char dummy[12]; | |
| char signature[4]; //< must be "IHDR" | |
| unsigned char high_width[2]; //< image width high bytes [we ignore for now] | |
| unsigned char width[2]; //< image width low bytes | |
| unsigned char high_height[2]; //< image height high bytes [we ignore for now] | |
| unsigned char height[4]; //< image height | |
| }; | }; |
| /// GIF file header | /// GIF file header |
| struct GIF_Header { | struct GIF_Header { |
| char type[3]; // 'GIF' | char signature[3]; // 'GIF' |
| char version[3]; | char version[3]; |
| unsigned char width[2]; | unsigned char width[2]; |
| unsigned char height[2]; | unsigned char height[2]; |
| Line 111 struct JPG_Size_segment_body { | Line 153 struct JPG_Size_segment_body { |
| // | // |
| inline short x_endian_to_int(unsigned char L, unsigned char H) { | inline ushort x_endian_to_ushort(unsigned char L, unsigned char H) { |
| return(short)((H<<8) + L); | return(short)((H<<8) + L); |
| } | } |
| inline short big_endian_to_int(unsigned char b[2]) { | inline ushort big_endian_to_ushort(unsigned char b[2]) { |
| return x_endian_to_int(b[1], b[0]); | return x_endian_to_ushort(b[1], b[0]); |
| } | } |
| inline short little_endian_to_int(unsigned char b[2]) { | inline ushort little_endian_to_ushort(unsigned char b[2]) { |
| return x_endian_to_int(b[0], b[1]); | return x_endian_to_ushort(b[0], b[1]); |
| } | } |
| void measure_gif(Pool& pool, const String *origin_string, | void measure_gif(Pool& pool, const String *origin_string, |
| Measure_reader& reader, int& width, int& height) { | Measure_reader& reader, ushort& width, ushort& height) { |
| void *buf; | void *buf; |
| const int head_size=sizeof(GIF_Header); | const int head_size=sizeof(GIF_Header); |
| if(reader.read(buf, head_size)<head_size) | if(reader.read(buf, head_size)<head_size) |
| PTHROW(0, 0, | throw Exception("image.format", |
| origin_string, | origin_string, |
| "not GIF file - too small"); | "not GIF file - too small"); |
| GIF_Header *head=(GIF_Header *)buf; | GIF_Header *head=(GIF_Header *)buf; |
| if(strncmp(head->type, "GIF", 3)!=0) | if(strncmp(head->signature, "GIF", 3)!=0) |
| PTHROW(0, 0, | throw Exception("image.format", |
| origin_string, | origin_string, |
| "not GIF file - signature not found"); | "not GIF file - wrong signature"); |
| width=little_endian_to_int(head->width); | width=little_endian_to_ushort(head->width); |
| height=little_endian_to_int(head->height); | height=little_endian_to_ushort(head->height); |
| } | } |
| /// @test remove ugly mech in reader - 20K limit | |
| void measure_jpeg(Pool& pool, const String *origin_string, | void measure_jpeg(Pool& pool, const String *origin_string, |
| Measure_reader& reader, int& width, int& height) { | Measure_reader& reader, ushort& width, ushort& height) { |
| // JFIF format markers | // JFIF format markers |
| const unsigned char MARKER=0xFF; | const unsigned char MARKER=0xFF; |
| const unsigned char CODE_SIZE_FIRST=0xC0; | const unsigned char CODE_SIZE_FIRST=0xC0; |
| Line 153 void measure_jpeg(Pool& pool, const Stri | Line 196 void measure_jpeg(Pool& pool, const Stri |
| void *buf; | void *buf; |
| const size_t prefix_size=2; | const size_t prefix_size=2; |
| if(reader.read(buf, prefix_size)<prefix_size) | if(reader.read(buf, prefix_size)<prefix_size) |
| PTHROW(0, 0, | throw Exception("image.format", |
| origin_string, | origin_string, |
| "not JPEG file - too small"); | "not JPEG file - too small"); |
| unsigned char *signature=(unsigned char *)buf; | unsigned char *signature=(unsigned char *)buf; |
| if(!(signature[0]==0xFF && signature[1]==0xD8)) | if(!(signature[0]==0xFF && signature[1]==0xD8)) |
| PTHROW(0, 0, | throw Exception("image.format", |
| origin_string, | origin_string, |
| "not JPEG file - signature not found"); | "not JPEG file - wrong signature"); |
| bool found=false; | bool found=false; |
| while(true) { | while(true) { |
| Line 181 void measure_jpeg(Pool& pool, const Stri | Line 224 void measure_jpeg(Pool& pool, const Stri |
| break; | break; |
| JPG_Size_segment_body *body=(JPG_Size_segment_body *)buf; | JPG_Size_segment_body *body=(JPG_Size_segment_body *)buf; |
| width=big_endian_to_int(body->width); | width=big_endian_to_ushort(body->width); |
| height=big_endian_to_int(body->height); | height=big_endian_to_ushort(body->height); |
| found=true; | found=true; |
| break; | break; |
| } else { | } else { |
| // Dummy read to skip over data | // Dummy read to skip over data |
| size_t limit=big_endian_to_int(head->length) - 2; | long offset=big_endian_to_ushort(head->length) - 2; |
| if(reader.read(buf, limit)<limit) | reader.seek(offset); |
| break; | |
| } | } |
| } | } |
| if(!found) | if(!found) |
| PTHROW(0, 0, | throw Exception("image.format", |
| origin_string, | origin_string, |
| "broken JPEG file - size frame not found"); | "broken JPEG file - size frame not found"); |
| } | } |
| void measure_png(Pool& pool, const String *origin_string, | |
| Measure_reader& reader, ushort& width, ushort& height) { | |
| void *buf; | |
| const int head_size=sizeof(PNG_Header); | |
| if(reader.read(buf, head_size)<head_size) | |
| throw Exception("image.format", | |
| origin_string, | |
| "not PNG file - too small"); | |
| PNG_Header *head=(PNG_Header *)buf; | |
| if(strncmp(head->signature, "IHDR", 4)!=0) | |
| throw Exception("image.format", | |
| origin_string, | |
| "not PNG file - wrong signature"); | |
| width=big_endian_to_ushort(head->width); | |
| height=big_endian_to_ushort(head->height); | |
| } | |
| // measure center | // measure center |
| void measure(Pool& pool, const String& file_name, | void measure(Pool& pool, const String& file_name, |
| Measure_reader& reader, int& width, int& height) { | Measure_reader& reader, ushort& width, ushort& height) { |
| if(const char *cext=strrchr(file_name.cstr(), '.')) { | if(const char *cext=strrchr(file_name.cstr(String::UL_FILE_SPEC), '.')) { |
| cext++; | cext++; |
| if(strcasecmp(cext, "GIF")==0) | if(strcasecmp(cext, "GIF")==0) |
| measure_gif(pool, &file_name, reader, width, height); | measure_gif(pool, &file_name, reader, width, height); |
| else if(strcasecmp(cext, "JPG")==0 || strcasecmp(cext, "JPEG")==0) | else if(strcasecmp(cext, "JPG")==0 || strcasecmp(cext, "JPEG")==0) |
| measure_jpeg(pool, &file_name, reader, width, height); | measure_jpeg(pool, &file_name, reader, width, height); |
| else if(strcasecmp(cext, "PNG")==0) | |
| measure_png(pool, &file_name, reader, width, height); | |
| else | else |
| PTHROW(0, 0, | throw Exception("image.format", |
| &file_name, | &file_name, |
| "unhandled image file name extension '%s'", cext); | "unhandled image file name extension '%s'", cext); |
| } else | } else |
| PTHROW(0, 0, | throw Exception("image.format", |
| &file_name, | &file_name, |
| "can not determine image type - no file name extension"); | "can not determine image type - no file name extension"); |
| } | } |
| /// used by image: _measure / read_mem | // methods |
| struct Read_mem_info { | |
| unsigned char *ptr; | #ifndef DOXYGEN |
| unsigned char *eof; | struct File_measure_action_info { |
| }; | ushort *width; |
| static size_t read_mem(void*& buf, size_t limit, void *info) { | ushort *height; |
| Read_mem_info& rmi=*static_cast<Read_mem_info *>(info); | const String *file_name; |
| buf=rmi.ptr; | |
| size_t read_size=min(limit, (size_t)(rmi.eof-rmi.ptr)); | |
| rmi.ptr+=read_size; | |
| return read_size; | |
| } | |
| /// used by image: _measure / read_disk | |
| struct Read_disk_info { | |
| const String *file_spec; | |
| size_t offset; | |
| }; | }; |
| static size_t read_disk(void*& buf, size_t limit, void *info) { | #endif |
| Read_disk_info& rdi=*static_cast<Read_disk_info *>(info); | static void file_measure_action(Pool& pool, |
| Pool& pool=rdi.file_spec->pool(); | int f, |
| const String& file_spec, const char *fname, bool as_text, | |
| size_t read_size; | void *context) { |
| file_read(pool, *rdi.file_spec, | File_measure_action_info& info=*static_cast<File_measure_action_info *>(context); |
| buf, read_size, | |
| false/*as_text*/, | |
| true/*fail_on_read_problem*/, | |
| rdi.offset, limit); | |
| rdi.offset+=read_size; | Measure_file_reader reader(pool, f, *info.file_name, fname); |
| return read_size; | measure(pool, *info.file_name, reader, *info.width, *info.height); |
| } | } |
| // methods | |
| static void _measure(Request& r, const String& method_name, MethodParams *params) { | static void _measure(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value& data=params->as_no_junction(0, "data must not be code"); | Value& data=params->as_no_junction(0, "data must not be code"); |
| void *info;Measure_reader::Func read_func; | ushort width=0; |
| Read_mem_info read_mem_info; | ushort height=0; |
| Read_disk_info read_disk_info; | |
| const String *file_name; | const String *file_name; |
| if(data.is_string()) { | if(file_name=data.get_string()) { |
| file_name=data.get_string(); | File_measure_action_info info={&width, &height, file_name}; |
| read_disk_info.file_spec=&r.absolute(*file_name); | file_read_action_under_lock(pool, r.absolute(*file_name), |
| read_disk_info.offset=0; | "measure", file_measure_action, &info); |
| info=&read_disk_info;read_func=read_disk; | |
| } else { | } else { |
| const VFile& vfile=*data.as_vfile(); | const VFile& vfile=*data.as_vfile(); |
| file_name=&static_cast<Value *>(vfile.fields().get(*name_name))->as_string(); | file_name=&static_cast<Value *>(vfile.fields().get(*name_name))->as_string(); |
| read_mem_info.ptr=(unsigned char *)vfile.value_ptr(); | Measure_buf_reader reader( |
| read_mem_info.eof=read_mem_info.ptr+vfile.value_size(); | vfile.value_ptr(), |
| info=&read_mem_info;read_func=read_mem; | vfile.value_size(), |
| *file_name | |
| ); | |
| measure(pool, *file_name, reader, width, height); | |
| } | } |
| Measure_reader reader(read_func, info); | static_cast<VImage *>(r.get_self())->set(file_name, width, height); |
| int width, height; | |
| measure(pool, *file_name, reader, width, height); | |
| static_cast<VImage *>(r.self)->set(file_name, width, height); | |
| } | } |
| /// used by image: _html / append_attrib_pair | #ifndef DOXYGEN |
| struct Attrib_info { | struct Attrib_info { |
| String *tag; ///< html tag being constructed | String *tag; ///< html tag being constructed |
| Hash *skip; ///< tag attributes not to append to tag string [to skip] | Hash *skip; ///< tag attributes not to append to tag string [to skip] |
| }; | }; |
| #endif | |
| static void append_attrib_pair(const Hash::Key& key, Hash::Val *val, void *info) { | static void append_attrib_pair(const Hash::Key& key, Hash::Val *val, void *info) { |
| Attrib_info& ai=*static_cast<Attrib_info *>(info); | Attrib_info& ai=*static_cast<Attrib_info *>(info); |
| if(ai.skip && ai.skip->get(key)) | // skip user-specified and internal(starting with "line-") attributes |
| if(ai.skip && ai.skip->get(key) || key.pos("line-")==0) | |
| return; | return; |
| Value& value=*static_cast<Value *>(val); | Value& value=*static_cast<Value *>(val); |
| Line 306 static void _html(Request& r, const Stri | Line 353 static void _html(Request& r, const Stri |
| String tag(pool); | String tag(pool); |
| tag << "<img"; | tag << "<img"; |
| const Hash& fields=static_cast<VImage *>(r.self)->fields(); | const Hash& fields=static_cast<VImage *>(r.get_self())->fields(); |
| Hash *attribs=0; | Hash *attribs=0; |
| if(params->size()) | if(params->size()) { |
| if(attribs=params->get(0).get_hash()) { | // for backward compatibility: someday was ^html{} |
| Attrib_info attrib_info={&tag, 0}; | Value &vattribs=r.process_to_value(params->get(0), |
| attribs->for_each(append_attrib_pair, &attrib_info); | /*0/*no name* /,*/ |
| } else | false/*don't intercept string*/); |
| PTHROW(0, 0, | if(vattribs.is_defined()) // allow 'void' |
| &method_name, | if(attribs=vattribs.get_hash(&method_name)) { |
| "attributes must be must be hash"); | Attrib_info attrib_info={&tag, 0}; |
| attribs->for_each(append_attrib_pair, &attrib_info); | |
| } else | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| "attributes must be hash"); | |
| } | |
| Attrib_info attrib_info={&tag, attribs}; | Attrib_info attrib_info={&tag, attribs}; |
| fields.for_each(append_attrib_pair, &attrib_info); | fields.for_each(append_attrib_pair, &attrib_info); |
| Line 324 static void _html(Request& r, const Stri | Line 377 static void _html(Request& r, const Stri |
| r.write_pass_lang(tag); | r.write_pass_lang(tag); |
| } | } |
| /// @test wrap FILE to auto-object | |
| static gdImage *load(Request& r, const String& method_name, | static gdImage *load(Request& r, const String& method_name, |
| const String& file_name){ | const String& file_name){ |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| const char *file_name_cstr=r.absolute(file_name).cstr(String::UL_FILE_NAME); | const char *file_name_cstr=r.absolute(file_name).cstr(String::UL_FILE_SPEC); |
| if(FILE *f=fopen(file_name_cstr, "rb")) { | if(FILE *f=fopen(file_name_cstr, "rb")) { |
| gdImage& image=*new(pool) gdImage(pool); | gdImage& image=*new(pool) gdImage(pool); |
| bool ok=image.CreateFromGif(f); | bool ok=image.CreateFromGif(f); |
| fclose(f); | fclose(f); |
| if(!ok) | if(!ok) |
| PTHROW(0, 0, | throw Exception("image.format", |
| &file_name, | &file_name, |
| "is not in GIF format"); | "is not in GIF format"); |
| return ℑ | return ℑ |
| } else { | } else { |
| PTHROW(0, 0, | throw Exception("file.missing", |
| &method_name, | &method_name, |
| "can not open '%s'", file_name_cstr); | "can not open '%s'", file_name_cstr); |
| return 0; | return 0; |
| Line 350 static gdImage *load(Request& r, const S | Line 404 static gdImage *load(Request& r, const S |
| static void _load(Request& r, const String& method_name, MethodParams *params) { | static void _load(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value& vfile_name=params->as_no_junction(0, "file name must not be code"); | const String& file_name=params->as_string(0, "file name must not be code"); |
| const String& file_name=vfile_name.as_string(); | |
| gdImage& image=*load(r, method_name, file_name); | gdImage& image=*load(r, method_name, file_name); |
| int width=image.SX(); | int width=image.SX(); |
| int height=image.SY(); | int height=image.SY(); |
| static_cast<VImage *>(r.self)->set(&file_name, width, height, &image); | static_cast<VImage *>(r.get_self())->set(&file_name, width, height, &image); |
| } | } |
| static void _create(Request& r, const String& method_name, MethodParams *params) { | static void _create(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| int width=params->as_int(0, r); | int width=params->as_int(0, "width must be int", r); |
| int height=params->as_int(1, r); | int height=params->as_int(1, "height must be int", r); |
| int bgcolor_value=0xffFFff; | int bgcolor_value=0xffFFff; |
| if(params->size()>2) | if(params->size()>2) |
| bgcolor_value=params->as_int(2, r); | bgcolor_value=params->as_int(2, "color must be int", r); |
| gdImage& image=*new(pool) gdImage(pool); | gdImage& image=*new(pool) gdImage(pool); |
| image.Create(width, height); | image.Create(width, height); |
| image.FilledRectangle(0, 0, width-1, height-1, image.Color(bgcolor_value)); | image.FilledRectangle(0, 0, width-1, height-1, image.Color(bgcolor_value)); |
| static_cast<VImage *>(r.self)->set(0, width, height, &image); | static_cast<VImage *>(r.get_self())->set(0, width, height, &image); |
| } | } |
| static void _gif(Request& r, const String& method_name, MethodParams *params) { | static void _gif(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| Line 387 static void _gif(Request& r, const Strin | Line 440 static void _gif(Request& r, const Strin |
| String out(pool); image->Gif(out); | String out(pool); image->Gif(out); |
| VFile& vfile=*new(pool) VFile(pool); | VFile& vfile=*new(pool) VFile(pool); |
| String& image_gif=*new(pool) String(pool, "image/gif"); | Value *content_type=new(pool) VString(*new(pool) String(pool, "image/gif")); |
| vfile.set(false/*not tainted*/, | vfile.set(false/*not tainted*/, |
| out.cstr(String::UL_AS_IS), out.size(), 0, &image_gif); | out.cstr(), out.size(), 0, content_type); |
| r.write_no_lang(vfile); | r.write_no_lang(vfile); |
| } | } |
| Line 397 static void _gif(Request& r, const Strin | Line 450 static void _gif(Request& r, const Strin |
| static void _line(Request& r, const String& method_name, MethodParams *params) { | static void _line(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Line( | image->Line( |
| params->as_int(0, r), | params->as_int(0, "x0 must be int", r), |
| params->as_int(1, r), | params->as_int(1, "y0 must be int", r), |
| params->as_int(2, r), | params->as_int(2, "x1 must be int", r), |
| params->as_int(3, r), | params->as_int(3, "y1 must be int", r), |
| image->Color(params->as_int(4, r))); | image->Color(params->as_int(4, "color must be int", r))); |
| } | } |
| static void _fill(Request& r, const String& method_name, MethodParams *params) { | static void _fill(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Fill( | image->Fill( |
| params->as_int(0, r), | params->as_int(0, "x must be int", r), |
| params->as_int(1, r), | params->as_int(1, "y must be int", r), |
| image->Color(params->as_int(2, r))); | image->Color(params->as_int(2, "color must be int", r))); |
| } | } |
| static void _rectangle(Request& r, const String& method_name, MethodParams *params) { | static void _rectangle(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Rectangle( | image->Rectangle( |
| params->as_int(0, r), | params->as_int(0, "x0 must be int", r), |
| params->as_int(1, r), | params->as_int(1, "y0 must be int", r), |
| params->as_int(2, r), | params->as_int(2, "x1 must be int", r), |
| params->as_int(3, r), | params->as_int(3, "y1 must be int", r), |
| image->Color(params->as_int(4, r))); | image->Color(params->as_int(4, "color must be int", r))); |
| } | } |
| static void _bar(Request& r, const String& method_name, MethodParams *params) { | static void _bar(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->FilledRectangle( | image->FilledRectangle( |
| params->as_int(0, r), | params->as_int(0, "x0 must be int", r), |
| params->as_int(1, r), | params->as_int(1, "y0 must be int", r), |
| params->as_int(2, r), | params->as_int(2, "x1 must be int", r), |
| params->as_int(3, r), | params->as_int(3, "y1 must be int", r), |
| image->Color(params->as_int(4, r))); | image->Color(params->as_int(4, "color must be int", r))); |
| } | |
| #ifndef DOXYGEN | |
| static void add_point(Array::Item *value, void *info) { | |
| Array& row=*static_cast<Array *>(value); | |
| gdImage::Point **p=static_cast<gdImage::Point **>(info); | |
| (**p).x=row.get_string(0)->as_int(); | |
| (**p).y=row.get_string(1)->as_int(); | |
| (*p)++; | |
| } | } |
| #endif | |
| static void _replace(Request& r, const String& method_name, MethodParams *params) { | static void _replace(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| if((params->size()-2)%2) // I see your thoughts, but that's more readable | Table *table=params->as_no_junction(2, "coordinates must not be code").get_table(); |
| PTHROW(0, 0, | if(!table) |
| throw Exception(0, | |
| &method_name, | |
| "coordinates must be table"); | |
| gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); | |
| gdImage::Point *add_p=all_p; | |
| table->for_each(add_point, &add_p); | |
| image->FilledPolygonReplaceColor(all_p, table->size(), | |
| 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, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | &method_name, |
| "y coordinate missing"); | "does not contain an image"); |
| int n=(params->size()-2)/2; | Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); |
| if(!table) | |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | throw Exception(0, |
| for(int i=0; i<n; i++) { | &method_name, |
| p[i].x=params->as_int(2+i*2+0, r); | "coordinates must be table"); |
| p[i].y=params->as_int(2+i*2+1, r); | |
| } | gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); |
| image->FilledPolygonReplaceColor(p, n, | gdImage::Point *add_p=all_p; |
| image->Color(params->as_int(0, r)), // src color | table->for_each(add_point, &add_p); |
| image->Color(params->as_int(1, r)));// dest color | image->Polygon(all_p, table->size(), |
| image->Color(params->as_int(0, "color must be int", r)), | |
| false/*not closed*/); | |
| } | } |
| static void _polygon(Request& r, const String& method_name, MethodParams *params) { | static void _polygon(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| if((params->size()-1)%2) // [I see..] see now? | Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); |
| PTHROW(0, 0, | if(!table) |
| &method_name, | throw Exception(0, |
| "y coordinate missing"); | &method_name, |
| "coordinates must be table"); | |
| int n=(params->size()-1)/2; | gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); |
| gdImage::Point *add_p=all_p; | |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | table->for_each(add_point, &add_p); |
| for(int i=0; i<n; i++) { | image->Polygon(all_p, table->size(), |
| p[i].x=params->as_int(2+i*2+0, r); | image->Color(params->as_int(0, "color must be int", r))); |
| p[i].y=params->as_int(2+i*2+1, r); | |
| } | |
| image->Polygon(p, n, | |
| image->Color(params->as_int(0, r))); | |
| } | } |
| static void _polybar(Request& r, const String& method_name, MethodParams *params) { | static void _polybar(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| gdImage *image=static_cast<VImage *>(r.self)->image; | gdImage *image=static_cast<VImage *>(r.get_self())->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| if((params->size()-1)%2) // [I see..] see now? | Table *table=params->as_no_junction(1, "coordinates must not be code").get_table(); |
| PTHROW(0, 0, | if(!table) |
| &method_name, | throw Exception("parser.runtime", |
| "y coordinate missing"); | &method_name, |
| "coordinates must be table"); | |
| int n=(params->size()-1)/2; | gdImage::Point *all_p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*table->size()); |
| gdImage::Point *add_p=all_p; | |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | table->for_each(add_point, &add_p); |
| for(int i=0; i<n; i++) { | image->FilledPolygon(all_p, table->size(), |
| p[i].x=params->as_int(2+i*2+0, r); | image->Color(params->as_int(0, "color must be int", r))); |
| p[i].y=params->as_int(2+i*2+1, r); | |
| } | |
| image->FilledPolygon(p, n, | |
| image->Color(params->as_int(0, r))); | |
| } | } |
| // font | // font |
| Line 584 public: | Line 661 public: |
| } | } |
| /* ******************************** string ********************************** */ | /* ******************************** string ********************************** */ |
| /* | |
| int string_width(const char *cstr){ | int string_width(const String& s){ |
| const char *cstr=s.cstr(); | |
| int result=0; | int result=0; |
| for(; *cstr; cstr++) | for(; *cstr; cstr++) |
| result+=index_width(index_of(*cstr)); | result+=index_width(index_of(*cstr)); |
| return result; | return result; |
| } | } |
| */ | |
| void string_display(gdImage& image, int x, int y, const String& s){ | void string_display(gdImage& image, int x, int y, const String& s){ |
| const char *cstr=s.cstr(String::UL_AS_IS); | const char *cstr=s.cstr(); |
| if(cstr) for(; *cstr; cstr++) { | if(cstr) for(; *cstr; cstr++) { |
| int index=index_of(*cstr); | int index=index_of(*cstr); |
| index_display(image, x, y, index); | index_display(image, x, y, index); |
| Line 610 static void _font(Request& r, const Stri | Line 687 static void _font(Request& r, const Stri |
| const String& alphabet=params->as_string(0, "alphabet must not be code"); | const String& alphabet=params->as_string(0, "alphabet must not be code"); |
| gdImage& image=*load(r, method_name, params->as_string(1, "file_name must not be code")); | gdImage& image=*load(r, method_name, params->as_string(1, "file_name must not be code")); |
| int spacebar_width=params->as_int(2, r); | int spacebar_width=params->as_int(2, "spacebar_width must be int", r); |
| int monospace_width; | int monospace_width; |
| if(params->size()>3) { | if(params->size()>3) { |
| monospace_width=params->as_int(3, r); | monospace_width=params->as_int(3, "monospace_width must be int", r); |
| if(!monospace_width) | if(!monospace_width) |
| monospace_width=image.SX(); | monospace_width=image.SX(); |
| } else | } else |
| monospace_width=0; | monospace_width=0; |
| if(!alphabet.size()) | if(!alphabet.size()) |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | &method_name, |
| "alphabet must not be empty"); | "alphabet must not be empty"); |
| static_cast<VImage *>(r.self)->font=new(pool) Font(pool, | static_cast<VImage *>(r.get_self())->font=new(pool) Font(pool, |
| alphabet, | alphabet, |
| image, | image, |
| image.SY() / alphabet.size(), monospace_width, spacebar_width); | image.SY() / alphabet.size(), monospace_width, spacebar_width); |
| Line 633 static void _font(Request& r, const Stri | Line 710 static void _font(Request& r, const Stri |
| static void _text(Request& r, const String& method_name, MethodParams *params) { | static void _text(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| int x=params->as_int(0, r); | int x=params->as_int(0, "x must be int", r); |
| int y=params->as_int(1, r); | int y=params->as_int(1, "y must be int", r); |
| const String& s=params->as_string(2, "text must not be code"); | const String& s=params->as_string(2, "text must not be code"); |
| VImage& vimage=*static_cast<VImage *>(r.self); | VImage& vimage=*static_cast<VImage *>(r.get_self()); |
| if(vimage.image) | if(vimage.image) |
| if(vimage.font) | if(vimage.font) |
| vimage.font->string_display(*vimage.image, x, y, s); | vimage.font->string_display(*vimage.image, x, y, s); |
| else | else |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | &method_name, |
| "set the font first"); | "set the font first"); |
| else | else |
| PTHROW(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| } | } |
| // constructor | static void _length(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | |
| const String& s=params->as_string(0, "text must not be code"); | |
| VImage& vimage=*static_cast<VImage *>(r.get_self()); | |
| if(vimage.image) | |
| if(vimage.font) { | |
| r.write_no_lang(*new(pool) VInt(pool, vimage.font->string_width(s))); | |
| } else | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| "set the font first"); | |
| else | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| } | |
| static void _arc(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| image->Arc( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| params->as_int(2, "width must be int", r), | |
| params->as_int(3, "height must be int", r), | |
| params->as_int(4, "start degrees must be int", r), | |
| params->as_int(5, "end degrees must be int", r), | |
| image->Color(params->as_int(6, "cx must be int", r))); | |
| } | |
| static void _sector(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| image->Sector( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| params->as_int(2, "width must be int", r), | |
| params->as_int(3, "height must be int", r), | |
| params->as_int(4, "start degrees must be int", r), | |
| params->as_int(5, "end degrees must be int", r), | |
| image->Color(params->as_int(6, "color must be int", r))); | |
| } | |
| static void _circle(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *image=static_cast<VImage *>(r.get_self())->image; | |
| if(!image) | |
| throw Exception(0, | |
| &method_name, | |
| "does not contain an image"); | |
| int size=params->as_int(2, "radius must be int", r)*2; | |
| image->Arc( | |
| params->as_int(0, "center_x must be int", r), | |
| params->as_int(1, "center_y must be int", r), | |
| size, //w | |
| size, //h | |
| 0, //s | |
| 360, //e | |
| image->Color(params->as_int(3, "color must be int", r))); | |
| } | |
| gdImage& as_image(Pool& pool, const String& method_name, MethodParams *params, | |
| int index, const char *msg) { | |
| gdImage *src=0; | |
| Value& value=params->as_no_junction(index, msg); | |
| if(Value *vimage=value.as(VIMAGE_TYPE, false)) { | |
| src=static_cast<VImage *>(vimage)->image; | |
| if(!src) | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| msg); | |
| } else | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| msg); | |
| return *src; | |
| } | |
| static void _copy(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| gdImage *dest=static_cast<VImage *>(r.get_self())->image; | |
| if(!dest) | |
| throw Exception(0, | |
| &method_name, | |
| "self does not contain an image"); | |
| gdImage& src=as_image(pool, method_name, params, 0, "src must be image"); | |
| int sx=params->as_int(1, "src_x must be int", r); | |
| int sy=params->as_int(2, "src_y must be int", r); | |
| int sw=params->as_int(3, "src_w must be int", r); | |
| int sh=params->as_int(4, "src_h must be int", r); | |
| int dx=params->as_int(5, "dest_x must be int", r); | |
| int dy=params->as_int(6, "dest_y must be int", r); | |
| if(params->size()>1+2+2+2) { | |
| int dw=params->as_int(1+2+2+2, "dest_w must be int", r); | |
| int dh=(int)(params->size()>1+2+2+2+1? | |
| params->as_int(1+2+2+2+1, "dest_h must be int", r):sh*(((double)dw)/((double)sw))); | |
| int tolerance=params->size()>1+2+2+2+2? | |
| params->as_int(1+2+2+2+2, "tolerance must be int", r):150; | |
| src.CopyResampled(*dest, dx, dy, sx, sy, dw, dh, sw, sh, tolerance); | |
| } else | |
| src.Copy(*dest, dx, dy, sx, sy, sw, sh); | |
| } | |
| MImage::MImage(Pool& apool) : Methoded(apool) { | |
| set_name(*NEW String(pool(), IMAGE_CLASS_NAME)); | |
| // constructor | |
| MImage::MImage(Pool& apool) : Methoded(apool, "image") { | |
| // ^image:measure[DATA] | // ^image:measure[DATA] |
| add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); | add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); |
| Line 686 MImage::MImage(Pool& apool) : Methoded(a | Line 887 MImage::MImage(Pool& apool) : Methoded(a |
| // ^image.bar(x0;y0;x1;y1;color) | // ^image.bar(x0;y0;x1;y1;color) |
| 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)(x;y)... point coord pairs | // ^image.replace(color-source;color-dest)[table x:y] |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 2+3*2, 2+100*2); | add_native_method("replace", Method::CT_DYNAMIC, _replace, 3, 3); |
| // ^image.polyline(color)[table x:y] | |
| add_native_method("polyline", Method::CT_DYNAMIC, _polyline, 2, 2); | |
| // ^image.polygon(color)(x;y)... point coord pairs | // ^image.polygon(color)[table x:y] |
| add_native_method("polygon", Method::CT_DYNAMIC, _polygon, 1+3*2, 1+100*2); | add_native_method("polygon", Method::CT_DYNAMIC, _polygon, 2, 2); |
| // ^image.polybar(color)(x;y)... point coord pairs | // ^image.polybar(color)[table x:y] |
| add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 1+3*2, 1+100*2); | add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 2, 2); |
| // ^image.font[alPHAbet;font-file-name.gif](spacebar_width) | // ^image.font[alPHAbet;font-file-name.gif](spacebar_width) |
| // ^image.font[alPHAbet;font-file-name.gif](spacebar_width;width) | // ^image.font[alPHAbet;font-file-name.gif](spacebar_width;width) |
| Line 702 MImage::MImage(Pool& apool) : Methoded(a | Line 906 MImage::MImage(Pool& apool) : Methoded(a |
| // ^image.text(x;y)[text] | // ^image.text(x;y)[text] |
| add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3); | add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3); |
| // ^image.ngth[text] | |
| add_native_method("length", Method::CT_DYNAMIC, _length, 1, 1); | |
| // ^image.arc(center x;center y;width;height;start in degrees;end in degrees;color) | |
| add_native_method("arc", Method::CT_DYNAMIC, _arc, 7, 7); | |
| // ^image.sector(center x;center y;width;height;start in degrees;end in degrees;color) | |
| add_native_method("sector", Method::CT_DYNAMIC, _sector, 7, 7); | |
| // ^image.circle(center x;center y;r;color) | |
| add_native_method("circle", Method::CT_DYNAMIC, _circle, 4, 4); | |
| // ^image.copy[source](src x;src y;src w;src h;dst x;dst y[;dest w[;dest h[;tolerance]]]) | |
| add_native_method("copy", Method::CT_DYNAMIC, _copy, 1+2+2+2, (1+2+2+2)+2+1); | |
| } | } |
| // global variable | // global variable |