FLTK 1.3.2
fl_draw.H
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1 //
2 // "$Id: fl_draw.H 9463 2012-05-08 16:15:34Z greg.ercolano $"
3 //
4 // Portable drawing function header file for the Fast Light Tool Kit (FLTK).
5 //
6 // Copyright 1998-2011 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 
24 #ifndef fl_draw_H
25 #define fl_draw_H
26 
27 #include <FL/x.H> // for Fl_Region
28 #include <FL/Enumerations.H> // for the color names
29 #include <FL/Fl_Window.H> // for fl_set_spot()
30 #include <FL/Fl_Device.H> // for fl_graphics_driver
31 
32 // Image class...
33 class Fl_Image;
34 
35 // Label flags...
36 FL_EXPORT extern char fl_draw_shortcut;
37 
42 // Colors:
52 inline void fl_color(Fl_Color c) {fl_graphics_driver->color(c); } // select indexed color
54 inline void fl_color(int c) {fl_color((Fl_Color)c);}
65 inline void fl_color(uchar r, uchar g, uchar b) {fl_graphics_driver->color(r,g,b); } // select actual color
76 // clip:
82 inline void fl_push_clip(int x, int y, int w, int h) {fl_graphics_driver->push_clip(x,y,w,h); }
91 #define fl_clip fl_push_clip
92 
114 inline int fl_not_clipped(int x, int y, int w, int h) {return fl_graphics_driver->not_clipped(x,y,w,h); }
126 inline int fl_clip_box(int x , int y, int w, int h, int& X, int& Y, int& W, int& H)
127  {return fl_graphics_driver->clip_box(x,y,w,h,X,Y,W,H); }
136 inline void fl_clip_region(Fl_Region r) { fl_graphics_driver->clip_region(r); }
140 inline Fl_Region fl_clip_region() { return fl_graphics_driver->clip_region(); }
141 
142 
143 // points:
147 inline void fl_point(int x, int y) { fl_graphics_driver->point(x,y); }
148 
149 // line type:
177 inline void fl_line_style(int style, int width=0, char* dashes=0) {fl_graphics_driver->line_style(style,width,dashes); }
178 enum {
179  FL_SOLID = 0,
180  FL_DASH = 1,
181  FL_DOT = 2,
184 
185  FL_CAP_FLAT = 0x100,
186  FL_CAP_ROUND = 0x200,
187  FL_CAP_SQUARE = 0x300,
188 
189  FL_JOIN_MITER = 0x1000,
190  FL_JOIN_ROUND = 0x2000,
191  FL_JOIN_BEVEL = 0x3000
192 };
193 
194 // rectangles tweaked to exactly fill the pixel rectangle:
195 
201 inline void fl_rect(int x, int y, int w, int h) { fl_graphics_driver->rect(x,y,w,h); }
202 
204 inline void fl_rect(int x, int y, int w, int h, Fl_Color c) {fl_color(c); fl_rect(x,y,w,h);}
206 inline void fl_rectf(int x, int y, int w, int h) { fl_graphics_driver->rectf(x,y,w,h); }
208 inline void fl_rectf(int x, int y, int w, int h, Fl_Color c) {fl_color(c); fl_rectf(x,y,w,h);}
209 
216 /* note: doxygen comment here to avoid triplication in os-speciic files */
217 FL_EXPORT void fl_rectf(int x, int y, int w, int h, uchar r, uchar g, uchar b);
218 
219 // line segments:
223 inline void fl_line(int x, int y, int x1, int y1) {fl_graphics_driver->line(x,y,x1,y1); }
227 inline void fl_line(int x, int y, int x1, int y1, int x2, int y2) {fl_graphics_driver->line(x,y,x1,y1,x2,y2); }
228 
229 // closed line segments:
233 inline void fl_loop(int x, int y, int x1, int y1, int x2, int y2) {fl_graphics_driver->loop(x,y,x1,y1,x2,y2); }
237 inline void fl_loop(int x, int y, int x1, int y1, int x2, int y2, int x3, int y3)
238  {fl_graphics_driver->loop(x,y,x1,y1,x2,y2,x3,y3); }
239 
240 // filled polygons
244 inline void fl_polygon(int x, int y, int x1, int y1, int x2, int y2) {fl_graphics_driver->polygon(x,y,x1,y1,x2,y2); }
248 inline void fl_polygon(int x, int y, int x1, int y1, int x2, int y2, int x3, int y3)
249  { fl_graphics_driver->polygon(x,y,x1,y1,x2,y2,x3,y3); }
250 
251 // draw rectilinear lines, horizontal segment first:
255 inline void fl_xyline(int x, int y, int x1) {fl_graphics_driver->xyline(x,y,x1);}
259 inline void fl_xyline(int x, int y, int x1, int y2) {fl_graphics_driver->xyline(x,y,x1,y2);}
264 inline void fl_xyline(int x, int y, int x1, int y2, int x3) {fl_graphics_driver->xyline(x,y,x1,y2,x3);}
265 
266 // draw rectilinear lines, vertical segment first:
270 inline void fl_yxline(int x, int y, int y1) {fl_graphics_driver->yxline(x,y,y1);}
274 inline void fl_yxline(int x, int y, int y1, int x2) {fl_graphics_driver->yxline(x,y,y1,x2);}
279 inline void fl_yxline(int x, int y, int y1, int x2, int y3) {fl_graphics_driver->yxline(x,y,y1,x2,y3);}
280 
281 // circular lines and pie slices (code in fl_arci.C):
304 inline void fl_arc(int x, int y, int w, int h, double a1, double a2) {fl_graphics_driver->arc(x,y,w,h,a1,a2); }
317 inline void fl_pie(int x, int y, int w, int h, double a1, double a2) {fl_graphics_driver->pie(x,y,w,h,a1,a2); }
319 FL_EXPORT void fl_chord(int x, int y, int w, int h, double a1, double a2); // nyi
320 
321 // scalable drawing code (code in fl_vertex.C and fl_arc.C):
335 inline void fl_scale(double x, double y) { fl_graphics_driver->scale(x, y); }
340 inline void fl_scale(double x) { fl_graphics_driver->scale(x, x); }
345 inline void fl_translate(double x, double y) { fl_graphics_driver->translate(x, y); }
350 inline void fl_rotate(double d) { fl_graphics_driver->rotate(d); }
357 inline void fl_mult_matrix(double a, double b, double c, double d, double x,double y)
358  { fl_graphics_driver->mult_matrix(a, b, c, d, x, y); }
379 inline void fl_vertex(double x, double y) {fl_graphics_driver->vertex(x,y); }
388 inline void fl_curve(double X0, double Y0, double X1, double Y1, double X2, double Y2, double X3, double Y3)
389  {fl_graphics_driver->curve(X0,Y0,X1,Y1,X2,Y2,X3,Y3); }
398 inline void fl_arc(double x, double y, double r, double start, double end) {fl_graphics_driver->arc(x,y,r,start,end); }
406 inline void fl_circle(double x, double y, double r) {fl_graphics_driver->circle(x,y,r); }
444 inline void fl_gap() {fl_graphics_driver->gap(); }
449 // get and use transformed positions:
454 inline double fl_transform_x(double x, double y) {return fl_graphics_driver->transform_x(x, y); }
459 inline double fl_transform_y(double x, double y) {return fl_graphics_driver->transform_y(x, y); }
464 inline double fl_transform_dx(double x, double y) {return fl_graphics_driver->transform_dx(x, y); }
469 inline double fl_transform_dy(double x, double y) {return fl_graphics_driver->transform_dy(x, y); }
474 inline void fl_transformed_vertex(double xf, double yf) {fl_graphics_driver->transformed_vertex(xf,yf); }
479 /* NOTE: doxygen comments here to avoid triplication in os-specific sources */
480 
481 // Fonts:
491 inline void fl_font(Fl_Font face, Fl_Fontsize fsize) { fl_graphics_driver->font(face,fsize); }
492 
497 inline Fl_Font fl_font() {return fl_graphics_driver->font();}
503 
504 // information you can get about the current font:
509 inline int fl_height() {return fl_graphics_driver->height();}
510 FL_EXPORT int fl_height(int font, int size);
515 inline int fl_descent() {return fl_graphics_driver->descent();}
517 FL_EXPORT double fl_width(const char* txt);
519 inline double fl_width(const char* txt, int n) {return fl_graphics_driver->width(txt, n);}
523 inline double fl_width(unsigned int c) {return fl_graphics_driver->width(c);}
534 FL_EXPORT void fl_text_extents(const char*, int& dx, int& dy, int& w, int& h); // NO fltk symbol expansion will be performed
538 inline void fl_text_extents(const char *t, int n, int& dx, int& dy, int& w, int& h)
539  {fl_graphics_driver->text_extents(t, n, dx, dy, w, h);}
540 
541 // font encoding:
542 // Note: doxygen comments here to avoid duplication for os-sepecific cases
549 FL_EXPORT const char *fl_latin1_to_local(const char *t, int n=-1);
556 FL_EXPORT const char *fl_local_to_latin1(const char *t, int n=-1);
563 FL_EXPORT const char *fl_mac_roman_to_local(const char *t, int n=-1);
570 FL_EXPORT const char *fl_local_to_mac_roman(const char *t, int n=-1);
585 FL_EXPORT void fl_draw(const char* str, int x, int y);
593 FL_EXPORT void fl_draw(int angle, const char* str, int x, int y);
597 inline void fl_draw(const char* str, int n, int x, int y) {fl_graphics_driver->draw(str,n,x,y); }
602 inline void fl_draw(int angle, const char* str, int n, int x, int y) {fl_graphics_driver->draw(angle,str,n,x,y); }
606 inline void fl_rtl_draw(const char* str, int n, int x, int y) {fl_graphics_driver->rtl_draw(str,n,x,y); }
607 FL_EXPORT void fl_measure(const char* str, int& x, int& y,
608  int draw_symbols = 1);
609 FL_EXPORT void fl_draw(const char* str, int x, int y, int w, int h,
610  Fl_Align align,
611  Fl_Image* img=0, int draw_symbols = 1);
612 FL_EXPORT void fl_draw(const char* str, int x, int y, int w, int h,
613  Fl_Align align,
614  void (*callthis)(const char *,int,int,int),
615  Fl_Image* img=0, int draw_symbols = 1);
616 
617 // boxtypes:
618 FL_EXPORT void fl_frame(const char* s, int x, int y, int w, int h);
619 FL_EXPORT void fl_frame2(const char* s, int x, int y, int w, int h);
620 FL_EXPORT void fl_draw_box(Fl_Boxtype, int x, int y, int w, int h, Fl_Color);
621 
622 // images:
623 
659 inline void fl_draw_image(const uchar* buf, int X,int Y,int W,int H, int D=3, int L=0)
660  { fl_graphics_driver->draw_image(buf, X, Y, W, H, D, L); }
661 
666 inline void fl_draw_image_mono(const uchar* buf, int X,int Y,int W,int H, int D=1, int L=0)
667  { fl_graphics_driver->draw_image_mono(buf, X, Y, W, H, D, L); }
668 
702 inline void fl_draw_image(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=3)
703  { fl_graphics_driver->draw_image(cb, data, X, Y, W, H, D); }
704 
709 inline void fl_draw_image_mono(Fl_Draw_Image_Cb cb, void* data, int X,int Y,int W,int H, int D=1)
710  { fl_graphics_driver->draw_image_mono(cb, data, X, Y, W, H, D); }
711 
717 /* note: doxygen comment here to avoid triplication in os-speciic files */
718 FL_EXPORT char fl_can_do_alpha_blending();
719 
737 /* note: doxygen comment here to avoid triplication in os-speciic files */
738 FL_EXPORT uchar *fl_read_image(uchar *p,int X,int Y,int W,int H,int alpha=0);
739 
740 // pixmaps:
741 FL_EXPORT int fl_draw_pixmap(/*const*/ char* const* data, int x,int y,Fl_Color=FL_GRAY);
742 FL_EXPORT int fl_draw_pixmap(const char* const* cdata, int x,int y,Fl_Color=FL_GRAY);
743 FL_EXPORT int fl_measure_pixmap(/*const*/ char* const* data, int &w, int &h);
744 FL_EXPORT int fl_measure_pixmap(const char* const* cdata, int &w, int &h);
745 
746 // other:
747 FL_EXPORT void fl_scroll(int X, int Y, int W, int H, int dx, int dy,
748  void (*draw_area)(void*, int,int,int,int), void* data);
749 FL_EXPORT const char* fl_shortcut_label(unsigned int shortcut);
750 FL_EXPORT const char* fl_shortcut_label(unsigned int shortcut, const char **eom);
751 FL_EXPORT unsigned int fl_old_shortcut(const char* s);
752 FL_EXPORT void fl_overlay_rect(int x,int y,int w,int h);
753 FL_EXPORT void fl_overlay_clear();
754 FL_EXPORT void fl_cursor(Fl_Cursor, Fl_Color fg=FL_BLACK, Fl_Color bg=FL_WHITE);
755 FL_EXPORT const char* fl_expand_text(const char* from, char* buf, int maxbuf,
756  double maxw, int& n, double &width,
757  int wrap, int draw_symbols = 0);
758 
759 // XIM:
761 FL_EXPORT void fl_set_status(int X, int Y, int W, int H);
763 FL_EXPORT void fl_set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win=0);
765 FL_EXPORT void fl_reset_spot(void);
766 
767 
768 
769 // XForms symbols:
770 FL_EXPORT int fl_draw_symbol(const char* label,int x,int y,int w,int h, Fl_Color);
771 FL_EXPORT int fl_add_symbol(const char* name, void (*drawit)(Fl_Color), int scalable);
774 #endif
775 
776 //
777 // End of "$Id: fl_draw.H 9463 2012-05-08 16:15:34Z greg.ercolano $".
778 //