FLTK 1.3.4
Fl_PostScript.H
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1 //
2 // "$Id: Fl_PostScript.H 10616 2015-03-11 06:21:17Z manolo $"
3 //
4 // Support for graphics output to PostScript file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 2010-2011 by Bill Spitzak and others.
7 //
8 // This library is free software. Distribution and use rights are outlined in
9 // the file "COPYING" which should have been included with this file. If this
10 // file is missing or damaged, see the license at:
11 //
12 // http://www.fltk.org/COPYING.php
13 //
14 // Please report all bugs and problems on the following page:
15 //
16 // http://www.fltk.org/str.php
17 //
18 
23 #ifndef Fl_PostScript_H
24 #define Fl_PostScript_H
25 
26 #include <FL/Fl_Paged_Device.H>
27 #include <FL/fl_draw.H>
28 #include <stdarg.h>
29 
30 /* Signature of Fl_PostScript::close_command() functions passed as parameters. */
31 extern "C" {
32  typedef int (Fl_PostScript_Close_Command)(FILE *);
33 }
34 
62 private:
63  void transformed_draw_extra(const char* str, int n, double x, double y, int w, bool rtl);
64  void *prepare_rle85();
65  void write_rle85(uchar b, void *data);
66  void close_rle85(void *data);
67  void *prepare85();
68  void write85(void *data, const uchar *p, int len);
69  void close85(void *data);
70 public:
71  static const char *class_id;
72  const char *class_name() {return class_id;};
74 #ifndef FL_DOXYGEN
75  enum SHAPE{NONE=0, LINE, LOOP, POLYGON, POINTS};
76 
77 class Clip {
78  public:
79  int x, y, w, h;
80  Clip *prev;
81  };
82  Clip * clip_;
83 
84  int lang_level_;
85  int gap_;
86  int pages_;
87 
88  double width_;
89  double height_;
90 
91  int shape_;
92  int linewidth_;// need for clipping, lang level 1-2
93  int linestyle_;//
94  int interpolate_; //interpolation of images
95  unsigned char cr_,cg_,cb_;
96  char linedash_[256];//should be enough
97  void concat(); // transform ror scalable dradings...
98  void reconcat(); //invert
99  void recover(); //recovers the state after grestore (such as line styles...)
100  void reset();
101 
102  uchar * mask;
103  int mx; // width of mask;
104  int my; // mask lines
105  //Fl_Color bg_;
106  Fl_PostScript_Close_Command* close_cmd_;
107  int page_policy_;
108  int nPages;
109  int orientation_;
110 
111  float scale_x;
112  float scale_y;
113  float angle;
114  int left_margin;
115  int top_margin;
116 
117  FILE *output;
118  double pw_, ph_;
119 
120  uchar bg_r, bg_g, bg_b;
121  int start_postscript (int pagecount, enum Fl_Paged_Device::Page_Format format, enum Fl_Paged_Device::Page_Layout layout);
122  /* int alpha_mask(const uchar * data, int w, int h, int D, int LD=0);
123  */
124  void transformed_draw(const char* s, int n, double x, double y); //precise text placing
125  void transformed_draw(const char* s, double x, double y);
126  int alpha_mask(const uchar * data, int w, int h, int D, int LD=0);
127 
128  enum Fl_Paged_Device::Page_Format page_format_;
129  char *ps_filename_;
130 
131  void page_policy(int p);
132  int page_policy(){return page_policy_;};
133  void close_command(Fl_PostScript_Close_Command* cmd){close_cmd_=cmd;};
134  FILE * file() {return output;};
135  //void orientation (int o);
136  //Fl_PostScript_Graphics_Driver(FILE *o, int lang_level, int pages = 0); // ps (also multi-page) constructor
137  //Fl_PostScript_Graphics_Driver(FILE *o, int lang_level, int x, int y, int w, int h); //eps constructor
138  void interpolate(int i){interpolate_=i;};
139  int interpolate(){return interpolate_;}
140 
141  void page(double pw, double ph, int media = 0);
142  void page(int format);
143 #endif // FL_DOXYGEN
144 
145  // implementation of drawing methods
146  void color(Fl_Color c);
147  void color(uchar r, uchar g, uchar b);
148 
149  void push_clip(int x, int y, int w, int h);
150  int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H);
151  int not_clipped(int x, int y, int w, int h);
152  void push_no_clip();
153  void pop_clip();
154 
155  void line_style(int style, int width=0, char* dashes=0);
156 
157  void rect(int x, int y, int w, int h);
158  void rectf(int x, int y, int w, int h);
159 
160  void xyline(int x, int y, int x1);
161  void xyline(int x, int y, int x1, int y2);
162  void xyline(int x, int y, int x1, int y2, int x3);
163 
164  void yxline(int x, int y, int y1);
165  void yxline(int x, int y, int y1, int x2);
166  void yxline(int x, int y, int y1, int x2, int y3);
167 
168  void line(int x1, int y1, int x2, int y2);
169  void line(int x1, int y1, int x2, int y2, int x3, int y3);
170 
171  void loop(int x0, int y0, int x1, int y1, int x2, int y2);
172  void loop(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
173  void polygon(int x0, int y0, int x1, int y1, int x2, int y2);
174  void polygon(int x0, int y0, int x1, int y1, int x2, int y2, int x3, int y3);
175  void point(int x, int y);
176 
177  void begin_points();
178  void begin_line();
179  void begin_loop();
180  void begin_polygon();
181  void vertex(double x, double y);
182  void curve(double x, double y, double x1, double y1, double x2, double y2, double x3, double y3);
183  void circle(double x, double y, double r);
184  void arc(double x, double y, double r, double start, double a);
185  void arc(int x, int y, int w, int h, double a1, double a2);
186  void pie(int x, int y, int w, int h, double a1, double a2);
187  void end_points();
188  void end_line();
189  void end_loop();
190  void end_polygon();
192  void gap(){gap_=1;};
194  void transformed_vertex(double x, double y);
195 
196  void draw_image(const uchar* d, int x,int y,int w,int h, int delta=3, int ldelta=0);
197  void draw_image_mono(const uchar* d, int x,int y,int w,int h, int delta=1, int ld=0);
198  void draw_image(Fl_Draw_Image_Cb call, void* data, int x,int y, int w, int h, int delta=3);
199  void draw_image_mono(Fl_Draw_Image_Cb call, void* data, int x,int y, int w, int h, int delta=1);
200 
201  void draw(const char* s, int nBytes, int x, int y) {transformed_draw(s,nBytes,x,y); };
202 #ifdef __APPLE__
203  void draw(const char* s, int nBytes, float x, float y) {transformed_draw(s,nBytes,x,y); };
204 #endif
205  void draw(int angle, const char *str, int n, int x, int y);
206  void rtl_draw(const char* s, int n, int x, int y);
207  void font(int face, int size);
208  double width(const char *, int);
209  double width(unsigned int u);
210  void text_extents(const char *c, int n, int &dx, int &dy, int &w, int &h);
211  int height();
212  int descent();
213  void draw(Fl_Pixmap * pxm,int XP, int YP, int WP, int HP, int cx, int cy);
214  void draw(Fl_Bitmap * bitmap,int XP, int YP, int WP, int HP, int cx, int cy);
215  void draw(Fl_RGB_Image * rgb,int XP, int YP, int WP, int HP, int cx, int cy);
216  int draw_scaled(Fl_Image *img, int XP, int YP, int WP, int HP);
217  int clocale_printf(const char *format, ...);
219 };
220 
226 class FL_EXPORT Fl_PostScript_File_Device : public Fl_Paged_Device {
227 #ifdef __APPLE__
228  CGContextRef gc;
229 #endif
230 protected:
232 public:
233  static const char *class_id;
234  const char *class_name() {return class_id;};
237  int start_job(int pagecount, int* from, int* to);
238  int start_job(int pagecount, enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4,
240  int start_job(FILE *ps_output, int pagecount, enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4,
242  int start_page (void);
243  int printable_rect(int *w, int *h);
244  void margins(int *left, int *top, int *right, int *bottom);
245  void origin(int *x, int *y);
246  void origin(int x, int y);
247  void scale (float scale_x, float scale_y = 0.);
248  void rotate(float angle);
249  void translate(int x, int y);
250  void untranslate(void);
251  int end_page (void);
252  void end_job(void);
253 #ifdef __APPLE__
254  void set_current() { fl_gc = gc; Fl_Paged_Device::set_current(); }
255 #endif
256 
257  static const char *file_chooser_title;
258 };
259 
260 #endif // Fl_PostScript_H
261 
262 //
263 // End of "$Id: Fl_PostScript.H 10616 2015-03-11 06:21:17Z manolo $"
264 //
const char * class_name()
Returns the name of the class of this object.
Definition: Fl_PostScript.H:234
virtual void begin_points()
see fl_begin_points().
Definition: fl_vertex.cxx:75
virtual int start_job(int pagecount, int *frompage=NULL, int *topage=NULL)
Starts a print job.
Definition: Fl_Paged_Device.cxx:161
virtual void begin_loop()
see fl_begin_loop().
Definition: fl_vertex.cxx:79
Represents page-structured drawing surfaces.
Definition: Fl_Paged_Device.H:38
The Fl_Pixmap class supports caching and drawing of colormap (pixmap) images, including transparency...
Definition: Fl_Pixmap.H:41
virtual void text_extents(const char *, int n, int &dx, int &dy, int &w, int &h)
see fl_text_extents(const char*, int n, int& dx, int& dy, int& w, int& h).
Definition: Fl_Device.cxx:68
virtual void margins(int *left, int *top, int *right, int *bottom)
Computes the dimensions of margins that lie between the printable page area and the full page...
Definition: Fl_Paged_Device.cxx:193
virtual void pop_clip()
see fl_pop_clip().
Definition: fl_rect.cxx:620
virtual void rect(int x, int y, int w, int h)
see fl_rect(int x, int y, int w, int h).
Definition: fl_rect.cxx:158
void draw(const char *s, int nBytes, int x, int y)
see fl_draw(const char *str, int n, int x, int y).
Definition: Fl_PostScript.H:201
virtual void set_current(void)
Make this surface the current drawing surface.
Definition: Fl_Device.cxx:44
virtual void draw_image_mono(const uchar *buf, int X, int Y, int W, int H, int D=1, int L=0)
see fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D, int L).
Definition: Fl_Device.H:353
virtual void loop(int x0, int y0, int x1, int y1, int x2, int y2)
see fl_loop(int x0, int y0, int x1, int y1, int x2, int y2).
Definition: fl_rect.cxx:408
virtual int not_clipped(int x, int y, int w, int h)
see fl_not_clipped(int x, int y, int w, int h).
Definition: fl_rect.cxx:628
virtual void xyline(int x, int y, int x1)
see fl_xyline(int x, int y, int x1).
Definition: fl_rect.cxx:198
virtual void scale(float scale_x, float scale_y=0.)
Changes the scaling of page coordinates.
Definition: Fl_Paged_Device.cxx:219
void(* Fl_Draw_Image_Cb)(void *data, int x, int y, int w, uchar *buf)
signature of image generation callback function.
Definition: Fl_Device.H:49
Page_Layout
Possible page layouts.
Definition: Fl_Paged_Device.H:86
Base class for image caching and drawing.
Definition: Fl_Image.H:55
virtual void point(int x, int y)
see fl_point(int x, int y).
Definition: fl_rect.cxx:515
The Fl_RGB_Image class supports caching and drawing of full-color images with 1 to 4 channels of colo...
Definition: Fl_Image.H:202
virtual void end_loop()
see fl_end_loop().
Definition: fl_vertex.cxx:159
virtual void rtl_draw(const char *str, int n, int x, int y)
see fl_rtl_draw(const char *str, int n, int x, int y).
Definition: Fl_Device.H:258
virtual void transformed_vertex(double xf, double yf)
see fl_transformed_vertex(double xf, double yf).
Definition: fl_vertex.cxx:103
virtual int height()
see fl_height().
Definition: Fl_Device.H:398
virtual void end_job(void)
To be called at the end of a print job.
Definition: Fl_Paged_Device.cxx:240
virtual void untranslate(void)
Undoes the effect of a previous translate() call.
Definition: Fl_Paged_Device.cxx:254
virtual void origin(int x, int y)
Sets the position in page coordinates of the origin of graphics functions.
Definition: Fl_Paged_Device.cxx:206
virtual void begin_polygon()
see fl_begin_polygon().
Definition: fl_vertex.cxx:81
virtual void end_line()
see fl_end_line().
Definition: fl_vertex.cxx:133
static const char * file_chooser_title
Label of the PostScript file chooser window.
Definition: Fl_PostScript.H:257
virtual void polygon(int x0, int y0, int x1, int y1, int x2, int y2)
see fl_polygon(int x0, int y0, int x1, int y1, int x2, int y2).
Definition: fl_rect.cxx:463
virtual int descent()
see fl_descent().
Definition: Fl_Device.H:400
Fl_Color color()
see fl_color(void).
Definition: Fl_Device.H:402
virtual void rotate(float angle)
Rotates the graphics operations relatively to paper.
Definition: Fl_Paged_Device.cxx:228
virtual void line_style(int style, int width=0, char *dashes=0)
see fl_line_style(int style, int width, char* dashes).
Definition: fl_line_style.cxx:50
const char * class_name()
Returns the name of the class of this object.
Definition: Fl_PostScript.H:72
void gap()
see fl_gap().
Definition: Fl_PostScript.H:192
PostScript graphical backend.
Definition: Fl_PostScript.H:61
virtual void begin_line()
see fl_begin_line().
Definition: fl_vertex.cxx:77
Fl_Font font()
see fl_font(void).
Definition: Fl_Device.H:388
virtual void curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3)
see fl_curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3...
Definition: fl_curve.cxx:32
declaration of class Fl_Paged_Device.
void begin_complex_polygon()
see fl_begin_complex_polygon().
Definition: Fl_PostScript.H:191
Page_Format
Possible page formats.
Definition: Fl_Paged_Device.H:50
virtual void vertex(double x, double y)
see fl_vertex(double x, double y).
Definition: fl_vertex.cxx:111
virtual int draw_scaled(Fl_Image *img, int X, int Y, int W, int H)
Draws an Fl_Image scaled to width W & height H with top-left corner at X,Y.
Definition: Fl_Image.cxx:674
utility header to pull drawing functions together
unsigned int Fl_Color
An FLTK color value; see also Colors.
Definition: Enumerations.H:934
virtual void yxline(int x, int y, int y1)
see fl_yxline(int x, int y, int y1).
Definition: fl_rect.cxx:281
virtual void draw_image(const uchar *buf, int X, int Y, int W, int H, int D=3, int L=0)
see fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D, int L).
Definition: Fl_Device.H:351
A virtual class subclassed for each graphics driver FLTK uses.
Definition: Fl_Device.H:110
virtual void push_no_clip()
see fl_push_no_clip().
Definition: fl_rect.cxx:613
virtual void circle(double x, double y, double r)
see fl_circle(double x, double y, double r).
Definition: fl_vertex.cxx:244
virtual void arc(double x, double y, double r, double start, double end)
see fl_arc(double x, double y, double r, double start, double end).
Definition: fl_arc.cxx:37
virtual void pie(int x, int y, int w, int h, double a1, double a2)
see fl_pie(int x, int y, int w, int h, double a1, double a2).
Definition: fl_arci.cxx:76
The Fl_Bitmap class supports caching and drawing of mono-color (bitmap) images.
Definition: Fl_Bitmap.H:33
virtual void line(int x, int y, int x1, int y1)
see fl_line(int x, int y, int x1, int y1).
Definition: fl_rect.cxx:362
virtual void translate(int x, int y)
Translates the current graphics origin accounting for the current rotation.
Definition: Fl_Paged_Device.cxx:249
A4 format.
Definition: Fl_Paged_Device.H:55
void end_complex_polygon()
see fl_end_complex_polygon().
Definition: Fl_PostScript.H:193
virtual void rectf(int x, int y, int w, int h)
see fl_rectf(int x, int y, int w, int h).
Definition: fl_rect.cxx:180
To send graphical output to a PostScript file.
Definition: Fl_PostScript.H:226
virtual int clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H)
see fl_clip_box(int x, int y, int w, int h, int &X, int &Y, int &W, int &H).
Definition: fl_rect.cxx:659
virtual void end_polygon()
see fl_end_polygon().
Definition: fl_vertex.cxx:165
virtual void push_clip(int x, int y, int w, int h)
see fl_push_clip(int x, int y, int w, int h).
Definition: fl_rect.cxx:576
virtual int start_page(void)
Starts a new printed page.
Definition: Fl_Paged_Device.cxx:170
virtual int end_page(void)
To be called at the end of each page.
Definition: Fl_Paged_Device.cxx:235
virtual int printable_rect(int *w, int *h)
Computes the width and height of the printable area of the page.
Definition: Fl_Paged_Device.cxx:180
Portrait orientation.
Definition: Fl_Paged_Device.H:87
virtual double width(const char *str, int n)
see fl_width(const char *str, int n).
Definition: Fl_Device.H:392
virtual void end_points()
see fl_end_points().
Definition: fl_vertex.cxx:115
virtual void draw(const char *str, int n, int x, int y)
see fl_draw(const char *str, int n, int x, int y).
Definition: Fl_Device.H:251
unsigned char uchar
unsigned char
Definition: fl_types.h:30
Fl_Graphics_Driver * driver()
Returns the graphics driver of this drawing surface.
Definition: Fl_Device.H:571