2 // "$Id: Fl_PostScript.H 8699 2011-05-20 16:39:06Z manolo $"
4 // Support for graphics output to PostScript file for the Fast Light Tool Kit (FLTK).
6 // Copyright 2010-2011 by Bill Spitzak and others.
8 // This library is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU Library General Public
10 // License as published by the Free Software Foundation; either
11 // version 2 of the License, or (at your option) any later version.
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // Library General Public License for more details.
18 // You should have received a copy of the GNU Library General Public
19 // License along with this library; if not, write to the Free Software
20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
23 // Please report all bugs and problems on the following page:
25 // http://www.fltk.org/str.php
27 /** \file Fl_PostScript.H
28 \brief declaration of classes Fl_PostScript_Graphics_Driver, Fl_PostScript_File_Device.
32 #ifndef Fl_PostScript_H
33 #define Fl_PostScript_H
35 #include <FL/Fl_Paged_Device.H>
36 #include <FL/fl_draw.H>
39 \brief PostScript graphical backend.
41 PostScript text uses vectorial fonts for the latin alphabet (exactly: all unicode
42 characters between U+0020 and U+017F, that is, ASCII, Latin-1 Supplement and Latin Extended-A charts)
43 plus a few other characters:
45 <tr> <th>Char</th><th>Codepoint</th><th>Name</th> <th>Char</th><th>Codepoint</th><th>Name</th> <th>Char</th><th>Codepoint</th><th>Name</th></tr>
46 <tr><td>ƒ</td><td>U+0192</td><td>florin</td><td>‚</td><td>U+201A</td><td>quotesinglbase</td><td>™</td><td>U+2122</td><td>trademark</td></tr>
47 <tr><td>ˆ</td><td>U+02C6</td><td>circumflex</td><td>“</td><td>U+201C</td><td>quotedblleft</td><td>∂</td><td>U+2202</td><td>partialdiff</td></tr>
48 <tr><td>ˇ</td><td>U+02C7</td><td>caron</td><td>”</td><td>U+201D</td><td>quotedblright</td><td>Δ</td><td>U+2206</td><td>Delta</td></tr>
49 <tr><td>˘</td><td>U+02D8</td><td>breve</td><td>„</td><td>U+201E</td><td>quotedblbase</td><td>∑</td><td>U+2211</td><td>summation</td></tr>
50 <tr><td>˙</td><td>U+02D9</td><td>dotaccent</td><td>†</td><td>U+2020</td><td>dagger</td><td>√</td><td>U+221A</td><td>radical</td></tr>
51 <tr><td>˚</td><td>U+02DA</td><td>ring</td><td>‡</td><td>U+2021</td><td>daggerdbl</td><td>∞</td><td>U+221E</td><td>infinity</td></tr>
52 <tr><td>˛</td><td>U+02DB</td><td>ogonek</td><td>•</td><td>U+2022</td><td>bullet</td><td>≠</td><td>U+2260</td><td>notequal</td></tr>
53 <tr><td>˜</td><td>U+02DC</td><td>tilde</td><td>…</td><td>U+2026</td><td>ellipsis</td><td>≤</td><td>U+2264</td><td>lessequal</td></tr>
54 <tr><td>˝</td><td>U+02DD</td><td>hungarumlaut</td><td>‰</td><td>U+2030</td><td>perthousand</td><td>≥</td><td>U+2265</td><td>greaterequal</td></tr>
55 <tr><td>–</td><td>U+2013</td><td>endash</td><td>‹</td><td>U+2039</td><td>guilsinglleft</td><td>◊</td><td>U+25CA</td><td>lozenge</td></tr>
56 <tr><td>—</td><td>U+2014</td><td>emdash</td><td>›</td><td>U+203A</td><td>guilsinglright</td><td>fi</td><td>U+FB01</td><td>fi</td></tr>
57 <tr><td>‘</td><td>U+2018</td><td>quoteleft</td><td>/</td><td>U+2044</td><td>fraction</td><td>fl</td><td>U+FB02</td><td>fl</td></tr>
58 <tr><td>’</td><td>U+2019</td><td>quoteright</td><td>€</td><td>U+20AC</td><td>Euro</td><td></td><td>U+F8FF</td><td>apple (Mac OS only)</td></tr>
60 <br> All other unicode characters are output as a bitmap.
61 <br> FLTK standard fonts are output using PostScript standard fonts: Helvetica, Courier,
62 Times (and their bold, oblique, italic variants).
64 class FL_EXPORT Fl_PostScript_Graphics_Driver : public Fl_Graphics_Driver {
66 static const char *class_id;
67 const char *class_name() {return class_id;};
68 Fl_PostScript_Graphics_Driver();
70 enum SHAPE{NONE=0, LINE, LOOP, POLYGON, POINTS};
87 int linewidth_;// need for clipping, lang level 1-2
89 int interpolate_; //interpolation of images
90 unsigned char cr_,cg_,cb_;
91 char linedash_[256];//should be enough
92 void concat(); // transform ror scalable dradings...
93 void reconcat(); //invert
94 void recover(); //recovers the state after grestore (such as line styles...)
98 int mx; // width of mask;
101 int (*close_cmd_)(FILE *);
115 uchar bg_r, bg_g, bg_b;
116 int start_postscript (int pagecount, enum Fl_Paged_Device::Page_Format format, enum Fl_Paged_Device::Page_Layout layout);
117 /* int alpha_mask(const uchar * data, int w, int h, int D, int LD=0);
119 void transformed_draw(const char* s, int n, double x, double y); //precise text placing
120 void transformed_draw(const char* s, double x, double y);
121 int alpha_mask(const uchar * data, int w, int h, int D, int LD=0);
123 enum Fl_Paged_Device::Page_Format page_format_;
126 void page_policy(int p);
127 int page_policy(){return page_policy_;};
128 void close_command( int (*cmd)(FILE *)){close_cmd_=cmd;};
129 FILE * file() {return output;};
130 //void orientation (int o);
131 //Fl_PostScript_Graphics_Driver(FILE *o, int lang_level, int pages = 0); // ps (also multi-page) constructor
132 //Fl_PostScript_Graphics_Driver(FILE *o, int lang_level, int x, int y, int w, int h); //eps constructor
133 void interpolate(int i){interpolate_=i;};
134 int interpolate(){return interpolate_;}
136 void page(double pw, double ph, int media = 0);
137 void page(int format);
140 // implementation of drawing methods
141 void color(Fl_Color c);
142 void color(uchar r, uchar g, uchar b);
144 void push_clip(int x, int y, int w, int h);
145 int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
146 int not_clipped(int x, int y, int w, int h);
150 void line_style(int style, int width=0, char* dashes=0);
152 void rect(int x, int y, int w, int h);
153 void rectf(int x, int y, int w, int h);
155 void xyline(int x, int y, int x1);
156 void xyline(int x, int y, int x1, int y2);
157 void xyline(int x, int y, int x1, int y2, int x3);
159 void yxline(int x, int y, int y1);
160 void yxline(int x, int y, int y1, int x2);
161 void yxline(int x, int y, int y1, int x2, int y3);
163 void line(int x1, int y1, int x2, int y2);
164 void line(int x1, int y1, int x2, int y2, int x3, int y3);
166 void loop(int x0, int y0, int x1, int y1, int x2, int y2);
167 void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
168 void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
169 void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
170 void point(int x, int y);
175 void begin_polygon();
176 void vertex(double x, double y);
177 void curve(double x, double y, double x1, double y1, double x2, double y2, double x3, double y3);
178 void circle(double x, double y, double r);
179 void arc(double x, double y, double r, double start, double a);
180 void arc(int x, int y, int w, int h, double a1, double a2);
181 void pie(int x, int y, int w, int h, double a1, double a2);
186 void begin_complex_polygon(){begin_polygon();};
188 void end_complex_polygon(){end_polygon();};
189 void transformed_vertex(double x, double y);
191 void draw_image(const uchar* d, int x,int y,int w,int h, int delta=3, int ldelta=0);
192 void draw_image_mono(const uchar* d, int x,int y,int w,int h, int delta=1, int ld=0);
193 void draw_image(Fl_Draw_Image_Cb call, void* data, int x,int y, int w, int h, int delta=3);
194 void draw_image_mono(Fl_Draw_Image_Cb call, void* data, int x,int y, int w, int h, int delta=1);
196 void draw(const char* s, int n, int x, int y) {transformed_draw(s,n,x,y); };
198 void draw(const char* s, int n, float x, float y) {transformed_draw(s,n,x,y); };
200 void draw(int angle, const char *str, int n, int x, int y);
201 void rtl_draw(const char* s, int n, int x, int y);
202 void font(int face, int size);
203 double width(const char *, int);
204 void text_extents(const char *c, int n, int &dx, int &dy, int &w, int &h);
207 void draw(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy);
208 void draw(Fl_Bitmap * bitmap,int XP, int YP, int WP, int HP, int cx, int cy);
209 void draw(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy);
210 ~Fl_PostScript_Graphics_Driver();
214 \brief To send graphical output to a PostScript file.
216 class FL_EXPORT Fl_PostScript_File_Device : public Fl_Paged_Device {
221 Fl_PostScript_Graphics_Driver *driver();
223 static const char *class_id;
224 const char *class_name() {return class_id;};
225 Fl_PostScript_File_Device();
226 ~Fl_PostScript_File_Device();
227 int start_job(int pagecount, enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4,
228 enum Fl_Paged_Device::Page_Layout layout = Fl_Paged_Device::PORTRAIT);
229 int start_job(FILE *ps_output, int pagecount, enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4,
230 enum Fl_Paged_Device::Page_Layout layout = Fl_Paged_Device::PORTRAIT);
231 int start_page (void);
232 int printable_rect(int *w, int *h);
233 void margins(int *left, int *top, int *right, int *bottom);
234 void origin(int *x, int *y);
235 void origin(int x, int y);
236 void scale (float scale_x, float scale_y = 0.);
237 void rotate(float angle);
238 void translate(int x, int y);
239 void untranslate(void);
243 void set_current() { fl_gc = gc; Fl_Paged_Device::set_current(); }
246 static const char *file_chooser_title;
249 #endif // Fl_PostScript_H
252 // End of "$Id: Fl_PostScript.H 8699 2011-05-20 16:39:06Z manolo $"