|
|
| version 1.15, 2001/04/12 14:50:26 | version 1.22, 2001/04/28 08:43:47 |
|---|---|
| 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 ArtLebedev Group(http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | Author: Alexander Petrosyan <paf@design.ru>(http://design.ru/paf) |
| $Id$ | $Id$ |
| */ | */ |
| #include "pa_config_includes.h" | #include "pa_config_includes.h" |
| #include <stdio.h> | |
| #ifdef WIN32 | |
| # include "smtp/smtp.h" | |
| #endif | |
| #include "gif.h" | #include "gif.h" |
| #include "pa_common.h" | #include "pa_common.h" |
| Line 23 | Line 17 |
| #include "pa_vfile.h" | #include "pa_vfile.h" |
| #include "pa_vimage.h" | #include "pa_vimage.h" |
| // global var | // defines |
| #define IMAGE_CLASS_NAME "image" | |
| // class | |
| class MImage : public Methoded { | |
| public: // VStateless_class | |
| Value *create_new_value(Pool& pool) { return new(pool) VImage(pool); } | |
| public: | |
| MImage(Pool& pool); | |
| bool used_directly() { return true; } | |
| VStateless_class *image_class; | }; |
| // helpers | // helpers |
| /// simple buffered reader[from memory/file], used in _measure | |
| class Measure_reader { | class Measure_reader { |
| public: | public: |
| enum { READ_CHUNK_SIZE=0x400 }; // 1K | enum { READ_CHUNK_SIZE=0x400 };// 1K |
| typedef size_t (*Func)(void *& buf, size_t limit, void *info); | typedef size_t(*Func)(void *& buf, size_t limit, void *info); |
| Measure_reader(Func afunc, void *ainfo) : | Measure_reader(Func afunc, void *ainfo) : |
| func(afunc), info(ainfo), | func(afunc), info(ainfo), |
| Line 45 public: | Line 53 public: |
| size=(*func)(chunk, READ_CHUNK_SIZE, info); | size=(*func)(chunk, READ_CHUNK_SIZE, info); |
| offset=0; | offset=0; |
| } else | } else |
| return 0; // as if EOF | return 0;// as if EOF |
| if(!size) // EOF | if(!size) // EOF |
| return 0; | return 0; |
| Line 65 private: | Line 73 private: |
| size_t size; | size_t size; |
| }; | }; |
| // GIF | /// GIF file header |
| struct GIF_Header { | struct GIF_Header { |
| char type[3]; // 'GIF' | char type[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 76 struct GIF_Header { | Line 84 struct GIF_Header { |
| char nulls; | char nulls; |
| }; | }; |
| // JPEG | /// JPEG file header |
| struct JFIF_Header { | struct JFIF_Header { |
| char length[2]; // length of JFIF segment marker | char length[2]; // length of JFIF segment marker |
| char identifier[5]; // JFIF identifier | char identifier[5]; // JFIF identifier |
| char version[2]; // version | char version[2]; // version |
| char units; // units X of Y pixel density | char units; // units X of Y pixel density |
| char xdensity[2]; // X pixel density | char xdensity[2]; // X pixel density |
| char ydensity[2]; // X pixel density | char ydensity[2]; // X pixel density |
| char xthumbnails; // width of thumbnails | char xthumbnails; // width of thumbnails |
| char ythumbnails; // height of thumbnails | char ythumbnails; // height of thumbnails |
| char reserved; // reserved | char reserved; // reserved |
| }; | }; |
| /// JPEG frame header | |
| struct JPG_Frame { | struct JPG_Frame { |
| char length[2]; // length of image marker | char length[2]; // length of image marker |
| char data; // data precision of bits/sample | char data; // data precision of bits/sample |
| char height[2]; // image height | char height[2]; // image height |
| char width[2]; // image width | char width[2]; // image width |
| char numComponents; // number of color components | char numComponents; // number of color components |
| }; | }; |
| // | // |
| inline short bytes_to_int(unsigned char HI, unsigned char LO) { | inline short bytes_to_int(unsigned char HI, unsigned char LO) { |
| return (short)((HI<<8) + LO); | return(short)((HI<<8) + LO); |
| } | } |
| void measure_gif(Pool& pool, const String *origin_string, | void measure_gif(Pool& pool, const String *origin_string, |
| Line 138 void measure_jpeg(Pool& pool, const Stri | Line 147 void measure_jpeg(Pool& pool, const Stri |
| bool flag=false; | bool flag=false; |
| unsigned char *prefix; | unsigned char *prefix; |
| const prefix_size=2; | const size_t prefix_size=2; |
| if(reader.read(prefix, prefix_size)<prefix_size) | if(reader.read(prefix, prefix_size)<prefix_size) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| origin_string, | origin_string, |
| Line 184 void measure_jpeg(Pool& pool, const Stri | Line 193 void measure_jpeg(Pool& pool, const Stri |
| width=bytes_to_int(h.width[0], h.width[1]); | width=bytes_to_int(h.width[0], h.width[1]); |
| height=bytes_to_int(h.height[0], h.height[1]); | height=bytes_to_int(h.height[0], h.height[1]); |
| } else | } else |
| PTHROW(0, 0, | PTHROW(0, 0, |
| origin_string, | origin_string, |
| "broken JPEG file - APP0 frame not found"); | "broken JPEG file - APP0 frame not found"); |
| } | } |
| Line 209 void measure(Pool& pool, const String& f | Line 218 void measure(Pool& pool, const String& f |
| "can not determine image type - no file name extension"); | "can not determine image type - no file name extension"); |
| } | } |
| // read from somewhere | /// used by image: _measure / read_mem |
| struct Read_mem_info { | struct Read_mem_info { |
| unsigned char *ptr; | unsigned char *ptr; |
| unsigned char *eof; | unsigned char *eof; |
| Line 223 static size_t read_mem(void*& buf, size_ | Line 231 static size_t read_mem(void*& buf, size_ |
| return read_size; | return read_size; |
| } | } |
| /// used by image: _measure / read_disk | |
| struct Read_disk_info { | struct Read_disk_info { |
| const String *file_spec; | const String *file_spec; |
| size_t offset; | size_t offset; |
| Line 245 static size_t read_disk(void*& buf, size | Line 254 static size_t read_disk(void*& buf, size |
| // methods | // methods |
| /// ^image:measure[DATA] | /// ^image:measure[DATA] |
| static void _measure(Request& r, const String& method_name, Array *params) { | static void _measure(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value& data=*static_cast<Value *>(params->get(0)); | Value& data=params->get_no_junction(0, "data must not be code"); |
| // forcing [this body type] | |
| r.fail_if_junction_(true, data, method_name, "data must not be code"); | |
| void *info; Measure_reader::Func read_func; | void *info;Measure_reader::Func read_func; |
| Read_mem_info read_mem_info; | Read_mem_info read_mem_info; |
| Read_disk_info read_disk_info; | Read_disk_info read_disk_info; |
| const String *file_name; | const String *file_name; |
| Line 260 static void _measure(Request& r, const S | Line 267 static void _measure(Request& r, const S |
| file_name=data.get_string(); | file_name=data.get_string(); |
| read_disk_info.file_spec=&r.absolute(*file_name); | read_disk_info.file_spec=&r.absolute(*file_name); |
| read_disk_info.offset=0; | read_disk_info.offset=0; |
| info=&read_disk_info; read_func=read_disk; | 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(); | read_mem_info.ptr=(unsigned char *)vfile.value_ptr(); |
| read_mem_info.eof=read_mem_info.ptr+vfile.value_size(); | read_mem_info.eof=read_mem_info.ptr+vfile.value_size(); |
| info=&read_mem_info; read_func=read_mem; | info=&read_mem_info;read_func=read_mem; |
| } | } |
| Measure_reader reader(read_func, info); | Measure_reader reader(read_func, info); |
| Line 276 static void _measure(Request& r, const S | Line 283 static void _measure(Request& r, const S |
| static_cast<VImage *>(r.self)->set(file_name, width, height); | static_cast<VImage *>(r.self)->set(file_name, width, height); |
| } | } |
| /// used by image: _html / append_attrib_pair | |
| struct Attrib_info { | struct Attrib_info { |
| String *tag; | String *tag; ///< html tag being constructed |
| Hash *skip; | Hash *skip; ///< tag attributes not to append to tag string [to skip] |
| }; | }; |
| 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); |
| Line 292 static void append_attrib_pair(const Has | Line 300 static void append_attrib_pair(const Has |
| if(value.is_string() || value.as_double()>=0) | if(value.is_string() || value.as_double()>=0) |
| *ai.tag << "=\"" << value.as_string() << "\""; | *ai.tag << "=\"" << value.as_string() << "\""; |
| } | } |
| /// ^image.html[] | /** ^image.html[] |
| /// ^image.html[hash] | ^image.html[hash] |
| static void _html(Request& r, const String& method_name, Array *params) { | */ |
| static void _html(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| String tag(pool); | String tag(pool); |
| tag << "<img"; | tag << "<img"; |
| Hash& fields=static_cast<VImage *>(r.self)->fields(); | const Hash& fields=static_cast<VImage *>(r.self)->fields(); |
| Hash *attribs=0; | Hash *attribs=0; |
| if(params->size()) | if(params->size()) |
| if(attribs=static_cast<Value *>(params->get(0))->get_hash()) { | if(attribs=params->get(0).get_hash()) { |
| Attrib_info attrib_info={&tag, 0}; | Attrib_info attrib_info={&tag, 0}; |
| attribs->for_each(append_attrib_pair, &attrib_info); | attribs->for_each(append_attrib_pair, &attrib_info); |
| } else | } else |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "attributes must be must be hash"); | "attributes must be must be hash"); |
| Attrib_info attrib_info={&tag, attribs}; | Attrib_info attrib_info={&tag, attribs}; |
| Line 318 static void _html(Request& r, const Stri | Line 327 static void _html(Request& r, const Stri |
| r.write_pass_lang(tag); | r.write_pass_lang(tag); |
| } | } |
| /// ^image.load[background.gif] | static gdImage *load(Request& r, const String& method_name, |
| static void _load(Request& r, const String& method_name, Array *params) { | const String& file_name){ |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value& vfile_name=*static_cast<Value *>(params->get(0)); | |
| // forcing [this body type] | |
| r.fail_if_junction_(true, vfile_name, method_name, "file name must not be code"); | |
| const String& file_name=vfile_name.as_string(); | |
| 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_NAME); |
| gdImage& image=*new(pool) gdImage(pool); | |
| if(FILE *f=fopen(file_name_cstr, "rb")) { | if(FILE *f=fopen(file_name_cstr, "rb")) { |
| gdImage& image=*new(pool) gdImage(pool); | |
| image.CreateFromGif(f); | image.CreateFromGif(f); |
| int width=image.SX(); | |
| int height=image.SY(); | |
| fclose(f); | fclose(f); |
| return ℑ | |
| } else { | |
| PTHROW(0, 0, | |
| &method_name, | |
| "can not open '%s'", file_name_cstr); | |
| return 0; | |
| } | |
| } | |
| static_cast<VImage *>(r.self)->set(&file_name, width, height, &image); | |
| } else | /// ^image.load[background.gif] |
| PTHROW(0, 0, | static void _load(Request& r, const String& method_name, MethodParams *params) { |
| &method_name, | Pool& pool=r.pool(); |
| "can not open background image '%s'", file_name_cstr); | |
| Value& vfile_name=params->get_no_junction(0, "file name must not be code"); | |
| const String& file_name=vfile_name.as_string(); | |
| gdImage& image=*load(r, method_name, file_name); | |
| int width=image.SX(); | |
| int height=image.SY(); | |
| static_cast<VImage *>(r.self)->set(&file_name, width, height, &image); | |
| } | } |
| /// ^image.create[width;height] bgcolor=white | /** ^image.create[width;height] bgcolor=white |
| /// ^image.create[width;height;bgcolor] | ^image.create[width;height;bgcolor] |
| static void _create(Request& r, const String& method_name, Array *params) { | */ |
| static void _create(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| int width=(int)r.process(*static_cast<Value *>(params->get(0))).as_double(); | int width=(int)r.process(params->get(0)).as_double(); |
| int height=(int)r.process(*static_cast<Value *>(params->get(1))).as_double(); | int height=(int)r.process(params->get(1)).as_double(); |
| int bgcolor_value=0xffFFff; | int bgcolor_value=0xffFFff; |
| if(params->size()>2) | if(params->size()>2) |
| bgcolor_value= | bgcolor_value=(int)r.process(params->get(2)).as_double(); |
| (int)r.process(*static_cast<Value *>(params->get(2))).as_double(); | |
| 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)); |
| Line 360 static void _create(Request& r, const St | Line 377 static void _create(Request& r, const St |
| } | } |
| /// ^image.gif[] | /// ^image.gif[] |
| static void _gif(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| // could _ but don't thing it's wise to use $image.src for vfile.name | // could _ but don't thing it's wise to use $image.src for vfile.name |
| 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"); | String& image_gif=*new(pool) String(pool, "image/gif"); |
| vfile.set(false/*not tainted*/, out.cstr(), out.size(), 0, &image_gif); | vfile.set(false/*not tainted*/, |
| out.cstr(String::UL_AS_IS), out.size(), 0, &image_gif); | |
| r.write_no_lang(vfile); | r.write_no_lang(vfile); |
| } | } |
| /// ^image.line(x0;y0;x1;y1;color) | /// ^image.line(x0;y0;x1;y1;color) |
| static void _line(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Line( | image->Line( |
| (int)r.process(*static_cast<Value *>(params->get(0))).as_double(), | (int)r.process(params->get(0)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(1))).as_double(), | (int)r.process(params->get(1)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(2))).as_double(), | (int)r.process(params->get(2)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(3))).as_double(), | (int)r.process(params->get(3)).as_double(), |
| image->Color((int)r.process(*static_cast<Value *>(params->get(4))).as_double())); | image->Color((int)r.process(params->get(4)).as_double())); |
| } | } |
| /// ^image.fill(x;y;color) | /// ^image.fill(x;y;color) |
| static void _fill(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Fill( | image->Fill( |
| (int)r.process(*static_cast<Value *>(params->get(0))).as_double(), | (int)r.process(params->get(0)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(1))).as_double(), | (int)r.process(params->get(1)).as_double(), |
| image->Color((int)r.process(*static_cast<Value *>(params->get(2))).as_double())); | image->Color((int)r.process(params->get(2)).as_double())); |
| } | } |
| /// ^image.rectangle(x0;y0;x1;y1;color) | /// ^image.rectangle(x0;y0;x1;y1;color) |
| static void _rectangle(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->Rectangle( | image->Rectangle( |
| (int)r.process(*static_cast<Value *>(params->get(0))).as_double(), | (int)r.process(params->get(0)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(1))).as_double(), | (int)r.process(params->get(1)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(2))).as_double(), | (int)r.process(params->get(2)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(3))).as_double(), | (int)r.process(params->get(3)).as_double(), |
| image->Color((int)r.process(*static_cast<Value *>(params->get(4))).as_double())); | image->Color((int)r.process(params->get(4)).as_double())); |
| } | } |
| /// ^image.bar(x0;y0;x1;y1;color) | /// ^image.bar(x0;y0;x1;y1;color) |
| static void _bar(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| image->FilledRectangle( | image->FilledRectangle( |
| (int)r.process(*static_cast<Value *>(params->get(0))).as_double(), | (int)r.process(params->get(0)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(1))).as_double(), | (int)r.process(params->get(1)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(2))).as_double(), | (int)r.process(params->get(2)).as_double(), |
| (int)r.process(*static_cast<Value *>(params->get(3))).as_double(), | (int)r.process(params->get(3)).as_double(), |
| image->Color((int)r.process(*static_cast<Value *>(params->get(4))).as_double())); | image->Color((int)r.process(params->get(4)).as_double())); |
| } | } |
| /// ^image.replace(color-source;color-dest)(x;y)... point coord pairs | /// ^image.replace(color-source;color-dest)(x;y)... point coord pairs |
| static void _replace(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 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 | if((params->size()-2)%2) // I see your thoughts, but that's more readable |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "y coordinate missing"); | "y coordinate missing"); |
| int n=(params->size()-2)/2; | int n=(params->size()-2)/2; |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); |
| for(int i=0; i<n; i++) { | for(int i=0; i<n; i++) { |
| p[i].x=(int)r.process(*static_cast<Value *>(params->get(2+i*2+0))).as_double(); | p[i].x=(int)r.process(params->get(2+i*2+0)).as_double(); |
| p[i].y=(int)r.process(*static_cast<Value *>(params->get(2+i*2+1))).as_double(); | p[i].y=(int)r.process(params->get(2+i*2+1)).as_double(); |
| } | } |
| image->FilledPolygonReplaceColor(p, n, | image->FilledPolygonReplaceColor(p, n, |
| image->Color((int)r.process(*static_cast<Value *>(params->get(0))).as_double()), // src color | image->Color((int)r.process(params->get(0)).as_double()), // src color |
| image->Color((int)r.process(*static_cast<Value *>(params->get(1))).as_double())); // dest color | image->Color((int)r.process(params->get(1)).as_double()));// dest color |
| } | } |
| /// ^image.polygon(color)(x;y)... point coord pairs | /// ^image.polygon(color)(x;y)... point coord pairs |
| static void _polygon(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| if((params->size()-1)%2) // [I see..] see now? | if((params->size()-1)%2) // [I see..] see now? |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "y coordinate missing"); | "y coordinate missing"); |
| int n=(params->size()-1)/2; | int n=(params->size()-1)/2; |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); |
| for(int i=0; i<n; i++) { | for(int i=0; i<n; i++) { |
| p[i].x=(int)r.process(*static_cast<Value *>(params->get(1+i*2+0))).as_double(); | p[i].x=(int)r.process(params->get(1+i*2+0)).as_double(); |
| p[i].y=(int)r.process(*static_cast<Value *>(params->get(1+i*2+1))).as_double(); | p[i].y=(int)r.process(params->get(1+i*2+1)).as_double(); |
| } | } |
| image->Polygon(p, n, | image->Polygon(p, n, |
| image->Color((int)r.process(*static_cast<Value *>(params->get(0))).as_double())); | image->Color((int)r.process(params->get(0)).as_double())); |
| } | } |
| /// ^image.polybar(color)(x;y)... point coord pairs | /// ^image.polybar(color)(x;y)... point coord pairs |
| static void _polybar(Request& r, const String& method_name, Array *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.self)->image; |
| if(!image) | if(!image) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "does not contain an image"); | "does not contain an image"); |
| if((params->size()-1)%2) // [I see..] see now? | if((params->size()-1)%2) // [I see..] see now? |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &method_name, | &method_name, |
| "y coordinate missing"); | "y coordinate missing"); |
| int n=(params->size()-1)/2; | int n=(params->size()-1)/2; |
| gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); | gdImage::Point *p=(gdImage::Point *)pool.malloc(sizeof(gdImage::Point)*n); |
| for(int i=0; i<n; i++) { | for(int i=0; i<n; i++) { |
| p[i].x=(int)r.process(*static_cast<Value *>(params->get(1+i*2+0))).as_double(); | p[i].x=(int)r.process(params->get(1+i*2+0)).as_double(); |
| p[i].y=(int)r.process(*static_cast<Value *>(params->get(1+i*2+1))).as_double(); | p[i].y=(int)r.process(params->get(1+i*2+1)).as_double(); |
| } | |
| image->FilledPolygon(p, n, | |
| image->Color((int)r.process(params->get(0)).as_double())); | |
| } | |
| // font | |
| #define Y(y)(y+index*height+1) | |
| /// simple gdImage-based font storage & text output | |
| class Font : public Pooled { | |
| public: | |
| int height; /* Font heigth */ | |
| int space; /* Default char width */ | |
| gdImage& ifont; | |
| const String& alphabet; | |
| Font(Pool& pool, | |
| const String& aalphabet, | |
| gdImage& aifont, int aheight, int aspace) : Pooled(pool), | |
| alphabet(aalphabet), | |
| height(aheight), space(aspace), | |
| ifont(aifont) { | |
| } | |
| /* ******************************** char ********************************** */ | |
| int index_of(char ch) { | |
| if(ch==' ') return -1; | |
| return alphabet.pos(&ch, 1); | |
| } | |
| int index_width(int index) { | |
| if(index<0) | |
| index=index_of('.'); | |
| if(index<0) | |
| return 0; | |
| int tr=ifont.GetTransparent(); | |
| for(int x=ifont.SX()-1; x>0; x--) { | |
| for(int y=0; y<height-1; y++) | |
| if(ifont.GetPixel(x, Y(y))!=tr) | |
| return x+2; | |
| } | |
| return 0; | |
| } | } |
| image->FilledPolygon(p, n, | |
| image->Color((int)r.process(*static_cast<Value *>(params->get(0))).as_double())); | void index_display(gdImage& image, int x, int y, int index){ |
| if(index>=0) | |
| ifont.Copy(image, x, y, 0, Y(0), index_width(index), height-1); | |
| } | |
| /* ******************************** string ********************************** */ | |
| /* | |
| int string_width(const char *cstr){ | |
| int result=0; | |
| for(; *cstr; cstr++) | |
| result+=index_width(index_of(*cstr)); | |
| return result; | |
| } | |
| */ | |
| void string_display(gdImage& image, int x, int y, const String& s){ | |
| const char *cstr=s.cstr(String::UL_AS_IS); | |
| if(cstr) for(; *cstr; cstr++) { | |
| int index=index_of(*cstr); | |
| index_display(image, x, y, index); | |
| x+=space ? space : index_width(index); | |
| } | |
| } | |
| }; | |
| /** | |
| ^image.font[alPHAbet;font-file-name.gif](height) | |
| ^image.font[alPHAbet;font-file-name.gif](height;width) | |
| */ | |
| static void _font(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| Value& valphabet=params->get_no_junction(0, "alphabet must not be code"); | |
| Value& file_name=params->get_no_junction(1, "file_name must not be code"); | |
| int height=(int)r.process(params->get(2)).as_double(); | |
| int width=params->size()>3?(int)r.process(params->get(3)).as_double():0; | |
| static_cast<VImage *>(r.self)->font=new(pool) Font(pool, | |
| valphabet.as_string(), | |
| *load(r, method_name, file_name.as_string()), | |
| height, width); | |
| } | } |
| // initialize | /// ^image.text(x;y)[text] |
| void initialize_image_class(Pool& pool, VStateless_class& vclass) { | static void _text(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | |
| int x=(int)r.process(params->get(0)).as_double(); | |
| int y=(int)r.process(params->get(1)).as_double(); | |
| const String& s=r.process(params->get(2)).as_string(); | |
| VImage& vimage=*static_cast<VImage *>(r.self); | |
| if(vimage.image) | |
| if(vimage.font) | |
| vimage.font->string_display(*vimage.image, x, y, s); | |
| else | |
| PTHROW(0, 0, | |
| &method_name, | |
| "set the font first"); | |
| else | |
| PTHROW(0, 0, | |
| &method_name, | |
| "does not contain an image"); | |
| } | |
| // constructor | |
| MImage::MImage(Pool& apool) : Methoded(apool) { | |
| set_name(*NEW String(pool(), IMAGE_CLASS_NAME)); | |
| // ^image:measure[DATA] | // ^image:measure[DATA] |
| vclass.add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); | add_native_method("measure", Method::CT_DYNAMIC, _measure, 1, 1); |
| /// ^image.html[] | /// ^image.html[] |
| /// ^image.html[hash] | /// ^image.html[hash] |
| vclass.add_native_method("html", Method::CT_DYNAMIC, _html, 0, 1); | add_native_method("html", Method::CT_DYNAMIC, _html, 0, 1); |
| /// ^image.load[background.gif] | /// ^image.load[background.gif] |
| vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 1); | add_native_method("load", Method::CT_DYNAMIC, _load, 1, 1); |
| /// ^image.create[width;height] bgcolor=white | /// ^image.create[width;height] bgcolor=white |
| /// ^image.create[width;height;bgcolor] | /// ^image.create[width;height;bgcolor] |
| vclass.add_native_method("create", Method::CT_DYNAMIC, _create, 2, 3); | add_native_method("create", Method::CT_DYNAMIC, _create, 2, 3); |
| /// ^image.gif[] | /// ^image.gif[] |
| vclass.add_native_method("gif", Method::CT_DYNAMIC, _gif, 0, 0); | add_native_method("gif", Method::CT_DYNAMIC, _gif, 0, 0); |
| /// ^image.line(x0;y0;x1;y1;color) | /// ^image.line(x0;y0;x1;y1;color) |
| vclass.add_native_method("line", Method::CT_DYNAMIC, _line, 5, 5); | add_native_method("line", Method::CT_DYNAMIC, _line, 5, 5); |
| /// ^image.fill(x;y;color) | /// ^image.fill(x;y;color) |
| vclass.add_native_method("fill", Method::CT_DYNAMIC, _fill, 3, 3); | add_native_method("fill", Method::CT_DYNAMIC, _fill, 3, 3); |
| /// ^image.rectangle(x0;y0;x1;y1;color) | /// ^image.rectangle(x0;y0;x1;y1;color) |
| vclass.add_native_method("rectangle", Method::CT_DYNAMIC, _rectangle, 5, 5); | add_native_method("rectangle", Method::CT_DYNAMIC, _rectangle, 5, 5); |
| /// ^image.bar(x0;y0;x1;y1;color) | /// ^image.bar(x0;y0;x1;y1;color) |
| vclass.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)(x;y)... point coord pairs |
| vclass.add_native_method("replace", Method::CT_DYNAMIC, _replace, 2+3*2, 2+100*2); | add_native_method("replace", Method::CT_DYNAMIC, _replace, 2+3*2, 2+100*2); |
| /// ^image.polygon(color)(x;y)... point coord pairs | /// ^image.polygon(color)(x;y)... point coord pairs |
| vclass.add_native_method("polygon", Method::CT_DYNAMIC, _polygon, 1+3*2, 1+100*2); | add_native_method("polygon", Method::CT_DYNAMIC, _polygon, 1+3*2, 1+100*2); |
| /// ^image.polybar(color)(x;y)... point coord pairs | /// ^image.polybar(color)(x;y)... point coord pairs |
| vclass.add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 1+3*2, 1+100*2); | add_native_method("polybar", Method::CT_DYNAMIC, _polybar, 1+3*2, 1+100*2); |
| /// ^image.font[alPHAbet;font-file-name.gif](height) | |
| /// ^image.font[alPHAbet;font-file-name.gif](height;width) | |
| add_native_method("font", Method::CT_DYNAMIC, _font, 3, 4); | |
| /// ^image.text(x;y)[text] | |
| add_native_method("text", Method::CT_DYNAMIC, _text, 3, 3); | |
| } | |
| // global variable | |
| Methoded *image_class; | |
| // creator | |
| Methoded *MImage_create(Pool& pool) { | |
| return image_class=new(pool) MImage(pool); | |
| } | } |