mirror of https://github.com/fltk/fltk
199 lines
7.5 KiB
C++
199 lines
7.5 KiB
C++
//
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// "$Id$"
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//
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// Portable drawing function header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2005 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@fltk.org".
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//
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#ifndef fl_draw_H
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#define fl_draw_H
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#include "Enumerations.H" // for the color names
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// Image class...
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class Fl_Image;
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// Label flags...
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FL_EXPORT extern char fl_draw_shortcut;
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// Colors:
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FL_EXPORT void fl_color(Fl_Color); // select indexed color
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inline void fl_color(int c) {fl_color((Fl_Color)c);} // for back compatability
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FL_EXPORT void fl_color(uchar, uchar, uchar); // select actual color
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extern FL_EXPORT Fl_Color fl_color_;
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inline Fl_Color fl_color() {return fl_color_;}
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// clip:
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FL_EXPORT void fl_push_clip(int x, int y, int w, int h);
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#define fl_clip fl_push_clip
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FL_EXPORT void fl_push_no_clip();
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FL_EXPORT void fl_pop_clip();
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FL_EXPORT int fl_not_clipped(int x, int y, int w, int h);
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FL_EXPORT int fl_clip_box(int, int, int, int, int& x, int& y, int& w, int& h);
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// points:
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FL_EXPORT void fl_point(int x, int y);
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// line type:
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FL_EXPORT void fl_line_style(int style, int width=0, char* dashes=0);
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enum {
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FL_SOLID = 0,
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FL_DASH = 1,
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FL_DOT = 2,
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FL_DASHDOT = 3,
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FL_DASHDOTDOT = 4,
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FL_CAP_FLAT = 0x100,
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FL_CAP_ROUND = 0x200,
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FL_CAP_SQUARE = 0x300,
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FL_JOIN_MITER = 0x1000,
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FL_JOIN_ROUND = 0x2000,
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FL_JOIN_BEVEL = 0x3000
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};
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// rectangles tweaked to exactly fill the pixel rectangle:
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FL_EXPORT void fl_rect(int x, int y, int w, int h);
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inline void fl_rect(int x, int y, int w, int h, Fl_Color c) {fl_color(c); fl_rect(x,y,w,h);}
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FL_EXPORT void fl_rectf(int x, int y, int w, int h);
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inline void fl_rectf(int x, int y, int w, int h, Fl_Color c) {fl_color(c); fl_rectf(x,y,w,h);}
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// line segments:
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FL_EXPORT void fl_line(int,int, int,int);
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FL_EXPORT void fl_line(int,int, int,int, int,int);
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// closed line segments:
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FL_EXPORT void fl_loop(int,int, int,int, int,int);
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FL_EXPORT void fl_loop(int,int, int,int, int,int, int,int);
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// filled polygons
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FL_EXPORT void fl_polygon(int,int, int,int, int,int);
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FL_EXPORT void fl_polygon(int,int, int,int, int,int, int,int);
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// draw rectilinear lines, horizontal segment first:
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FL_EXPORT void fl_xyline(int x, int y, int x1);
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FL_EXPORT void fl_xyline(int x, int y, int x1, int y2);
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FL_EXPORT void fl_xyline(int x, int y, int x1, int y2, int x3);
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// draw rectilinear lines, vertical segment first:
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FL_EXPORT void fl_yxline(int x, int y, int y1);
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FL_EXPORT void fl_yxline(int x, int y, int y1, int x2);
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FL_EXPORT void fl_yxline(int x, int y, int y1, int x2, int y3);
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// circular lines and pie slices (code in fl_arci.C):
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FL_EXPORT void fl_arc(int x, int y, int w, int h, double a1, double a2);
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FL_EXPORT void fl_pie(int x, int y, int w, int h, double a1, double a2);
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FL_EXPORT void fl_chord(int x, int y, int w, int h, double a1, double a2); // nyi
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// scalable drawing code (code in fl_vertex.C and fl_arc.C):
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FL_EXPORT void fl_push_matrix();
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FL_EXPORT void fl_pop_matrix();
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FL_EXPORT void fl_scale(double x, double y);
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FL_EXPORT void fl_scale(double x);
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FL_EXPORT void fl_translate(double x, double y);
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FL_EXPORT void fl_rotate(double d);
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FL_EXPORT void fl_mult_matrix(double a, double b, double c, double d, double x,double y);
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FL_EXPORT void fl_begin_points();
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FL_EXPORT void fl_begin_line();
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FL_EXPORT void fl_begin_loop();
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FL_EXPORT void fl_begin_polygon();
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FL_EXPORT void fl_vertex(double x, double y);
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FL_EXPORT void fl_curve(double, double, double, double, double, double, double, double);
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FL_EXPORT void fl_arc(double x, double y, double r, double start, double a);
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FL_EXPORT void fl_circle(double x, double y, double r);
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FL_EXPORT void fl_end_points();
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FL_EXPORT void fl_end_line();
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FL_EXPORT void fl_end_loop();
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FL_EXPORT void fl_end_polygon();
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FL_EXPORT void fl_begin_complex_polygon();
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FL_EXPORT void fl_gap();
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FL_EXPORT void fl_end_complex_polygon();
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// get and use transformed positions:
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FL_EXPORT double fl_transform_x(double x, double y);
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FL_EXPORT double fl_transform_y(double x, double y);
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FL_EXPORT double fl_transform_dx(double x, double y);
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FL_EXPORT double fl_transform_dy(double x, double y);
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FL_EXPORT void fl_transformed_vertex(double x, double y);
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// current font:
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FL_EXPORT void fl_font(int face, int size);
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extern FL_EXPORT int fl_font_;
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inline int fl_font() {return fl_font_;}
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extern FL_EXPORT int fl_size_;
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inline int fl_size() {return fl_size_;}
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// information you can get about the current font:
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FL_EXPORT int fl_height(); // using "size" should work ok
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inline int fl_height(int, int size) {return size;}
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FL_EXPORT int fl_descent();
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FL_EXPORT double fl_width(const char*);
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FL_EXPORT double fl_width(const char*, int n);
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FL_EXPORT double fl_width(uchar);
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// draw using current font:
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FL_EXPORT void fl_draw(const char*, int x, int y);
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FL_EXPORT void fl_draw(const char*, int n, int x, int y);
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FL_EXPORT void fl_measure(const char*, int& x, int& y, int draw_symbols = 1);
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FL_EXPORT void fl_draw(const char*, int,int,int,int, Fl_Align, Fl_Image* img=0,
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int draw_symbols = 1);
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FL_EXPORT void fl_draw(const char*, int,int,int,int, Fl_Align,
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void (*callthis)(const char *, int n, int x, int y),
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Fl_Image* img=0, int draw_symbols = 1);
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// boxtypes:
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FL_EXPORT void fl_frame(const char* s, int x, int y, int w, int h);
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FL_EXPORT void fl_frame2(const char* s, int x, int y, int w, int h);
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FL_EXPORT void fl_draw_box(Fl_Boxtype, int x, int y, int w, int h, Fl_Color);
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// images:
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FL_EXPORT void fl_draw_image(const uchar*, int,int,int,int, int delta=3, int ldelta=0);
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FL_EXPORT void fl_draw_image_mono(const uchar*, int,int,int,int, int delta=1, int ld=0);
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typedef void (*Fl_Draw_Image_Cb)(void*,int,int,int,uchar*);
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FL_EXPORT void fl_draw_image(Fl_Draw_Image_Cb, void*, int,int,int,int, int delta=3);
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FL_EXPORT void fl_draw_image_mono(Fl_Draw_Image_Cb, void*, int,int,int,int, int delta=1);
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FL_EXPORT void fl_rectf(int x, int y, int w, int h, uchar r, uchar g, uchar b);
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FL_EXPORT uchar *fl_read_image(uchar *p, int x,int y, int w, int h, int alpha=0);
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// pixmaps:
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FL_EXPORT int fl_draw_pixmap(/*const*/ char* const* data, int x,int y,Fl_Color=FL_GRAY);
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FL_EXPORT int fl_measure_pixmap(/*const*/ char* const* data, int &w, int &h);
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FL_EXPORT int fl_draw_pixmap(const char* const* data, int x,int y,Fl_Color=FL_GRAY);
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FL_EXPORT int fl_measure_pixmap(const char* const* data, int &w, int &h);
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// other:
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FL_EXPORT void fl_scroll(int X, int Y, int W, int H, int dx, int dy,
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void (*draw_area)(void*, int,int,int,int), void* data);
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FL_EXPORT const char* fl_shortcut_label(int);
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FL_EXPORT void fl_overlay_rect(int,int,int,int);
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FL_EXPORT void fl_overlay_clear();
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FL_EXPORT void fl_cursor(Fl_Cursor, Fl_Color=FL_BLACK, Fl_Color=FL_WHITE);
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// XForms symbols:
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FL_EXPORT int fl_draw_symbol(const char* label,int x,int y,int w,int h, Fl_Color);
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FL_EXPORT int fl_add_symbol(const char* name, void (*drawit)(Fl_Color), int scalable);
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#endif
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//
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// End of "$Id$".
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//
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