ref: 9eaba52cafcac7c2f3bfc72d7be1f15893196be1
dir: /DoConfig/fltk/src/fl_symbols.cxx/
// // "$Id$" // // Symbol drawing code for the Fast Light Tool Kit (FLTK). // // Copyright 1998-2010 by Bill Spitzak and others. // // This library is free software. Distribution and use rights are outlined in // the file "COPYING" which should have been included with this file. If this // file is missing or damaged, see the license at: // // http://www.fltk.org/COPYING.php // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // // These are small graphics drawn by the normal label-drawing // code when the string starts with an '@' sign. // Adapted from original code written by: // Written by Mark Overmars // Version 2.1 a // Date: Oct 2, 1992 #include <FL/Fl.H> #include <FL/fl_draw.H> #include <FL/math.h> #include "flstring.h" typedef struct { const char *name; void (*drawit)(Fl_Color); char scalable; char notempty; } SYMBOL; #define MAXSYMBOL 211 /* Maximal number of symbols in table. Only half of them are used. Should be prime. */ static SYMBOL symbols[MAXSYMBOL]; /* The symbols */ static int symbnumb = -1; /* Their number */ static int find(const char *name) { // returns hash entry if it exists, or first empty slot: int pos = name[0] ? ( name[1] ? ( name[2] ? 71*name[0]+31*name[1]+name[2] : 31*name[0]+name[1] ) : name[0] ) : 0; pos %= MAXSYMBOL; int hh2 = name[0] ? ( (name[1]) ? 51*name[0]+3*name[1] : 3*name[0] ) : 1; hh2 %= MAXSYMBOL; if (!hh2) hh2 = 1; for (;;) { if (!symbols[pos].notempty) return pos; if (!strcmp(symbols[pos].name,name)) return pos; pos = (pos + hh2) % MAXSYMBOL; } } static void fl_init_symbols(void); /**************** The routines seen by the user *************************/ /** Adds a symbol to the system. \param[in] name name of symbol (without the "@") \param[in] drawit function to draw symbol \param[in] scalable set to 1 if \p drawit uses scalable vector drawing \returns 1 on success, 0 on failure */ int fl_add_symbol(const char *name, void (*drawit)(Fl_Color), int scalable) { fl_init_symbols(); int pos; if (symbnumb > MAXSYMBOL / 2) return 0; // table is full pos = find(name); symbols[pos].name = name; symbols[pos].drawit = drawit; symbols[pos].notempty = 1; symbols[pos].scalable = scalable; symbnumb++; return 1; } int fl_return_arrow(int x,int y,int w,int h); /** Draw the named symbol in the given rectangle using the given color \param[in] label name of symbol \param[in] x,y position of symbol \param[in] w,h size of symbol \param[in] col color of symbox \returns 1 on success, 0 on failure */ // provided for back compatibility: int fl_draw_symbol(const char *label,int x,int y,int w,int h,Fl_Color col) { const char *p = label; if (*p++ != '@') return 0; fl_init_symbols(); int equalscale = 0; if (*p == '#') {equalscale = 1; p++;} if (*p == '-' && p[1]>='1' && p[1]<='9') { int n = p[1]-'0'; x += n; y += n; w -= 2*n; h -= 2*n; p += 2; } else if (*p == '+' && p[1]>='1' && p[1]<='9') { int n = p[1]-'0'; x -= n; y -= n; w += 2*n; h += 2*n; p += 2; } if (w < 10) {x -= (10-w)/2; w = 10;} if (h < 10) {y -= (10-h)/2; h = 10;} w = (w-1)|1; h = (h-1)|1; char flip_x = 0, flip_y = 0; if (*p=='$') { flip_x = 1; p++; } if (*p=='%') { flip_y = 1; p++; } int rotangle; switch (*p++) { case '0': rotangle = 1000*(p[1]-'0') + 100*(p[2]-'0') + 10*(p[3]-'0'); p += 4; break; case '1': rotangle = 2250; break; case '2': rotangle = 2700; break; case '3': rotangle = 3150; break; case '4': rotangle = 1800; break; case '5': case '6': rotangle = 0; break; case '7': rotangle = 1350; break; case '8': rotangle = 900; break; case '9': rotangle = 450; break; default: rotangle = 0; p--; break; } int pos = find(p); if (!symbols[pos].notempty) return 0; if (symbols[pos].scalable == 3) { // kludge to detect return arrow fl_return_arrow(x,y,w,h); return 1; } fl_push_matrix(); fl_translate(x+w/2,y+h/2); if (symbols[pos].scalable) { if (equalscale) {if (w<h) h = w; else w = h;} fl_scale(0.5*w, 0.5*h); fl_rotate(rotangle/10.0); if (flip_x) fl_scale(-1.0, 1.0); if (flip_y) fl_scale(1.0, -1.0); } (symbols[pos].drawit)(col); fl_pop_matrix(); return 1; } /******************** THE DEFAULT SYMBOLS ****************************/ /* Some help stuff */ #define BP fl_begin_polygon() #define EP fl_end_polygon() #define BCP fl_begin_complex_polygon() #define ECP fl_end_complex_polygon() #define BL fl_begin_line() #define EL fl_end_line() #define BC fl_begin_loop() #define EC fl_end_loop() #define vv(x,y) fl_vertex(x,y) //for the outline color static void set_outline_color(Fl_Color c) { fl_color(fl_darker(c)); } static void rectangle(double x,double y,double x2,double y2,Fl_Color col) { fl_color(col); BP; vv(x,y); vv(x2,y); vv(x2,y2); vv(x,y2); EP; set_outline_color(col); BC; vv(x,y); vv(x2,y); vv(x2,y2); vv(x,y2); EC; } /* The drawing routines */ static void draw_fltk(Fl_Color col) { fl_color(col); // F fill BCP; vv(-2.0, -0.5); vv(-1.0, -0.5); vv(-1.0, -0.3); vv(-1.8, -0.3); vv(-1.8, -0.1); vv(-1.2, -0.1); vv(-1.2, 0.1); vv(-1.8, 0.1); vv(-1.8, 0.5); vv(-2.0, 0.5); ECP; // L fill BCP; vv(-1.0, -0.5); vv(-0.8, -0.5); vv(-0.8, 0.3); vv(0.0, 0.3); vv(0.0, 0.5); vv(-1.0, 0.5); ECP; // T outline BCP; vv(-0.1, -0.5); vv(1.1, -0.5); vv(1.1, -0.3); vv(0.6, -0.3); vv(0.6, 0.5); vv(0.4, 0.5); vv(0.4, -0.3); vv(-0.1, -0.3); ECP; // K outline BCP; vv(1.1, -0.5); vv(1.3, -0.5); vv(1.3, -0.15); vv(1.70, -0.5); vv(2.0, -0.5); vv(1.43, 0.0); vv(2.0, 0.5); vv(1.70, 0.5); vv(1.3, 0.15); vv(1.3, 0.5); vv(1.1, 0.5); ECP; set_outline_color(col); // F outline BC; vv(-2.0, -0.5); vv(-1.0, -0.5); vv(-1.0, -0.3); vv(-1.8, -0.3); vv(-1.8, -0.1); vv(-1.2, -0.1); vv(-1.2, 0.1); vv(-1.8, 0.1); vv(-1.8, 0.5); vv(-2.0, 0.5); EC; // L outline BC; vv(-1.0, -0.5); vv(-0.8, -0.5); vv(-0.8, 0.3); vv(0.0, 0.3); vv(0.0, 0.5); vv(-1.0, 0.5); EC; // T outline BC; vv(-0.1, -0.5); vv(1.1, -0.5); vv(1.1, -0.3); vv(0.6, -0.3); vv(0.6, 0.5); vv(0.4, 0.5); vv(0.4, -0.3); vv(-0.1, -0.3); EC; // K outline BC; vv(1.1, -0.5); vv(1.3, -0.5); vv(1.3, -0.15); vv(1.70, -0.5); vv(2.0, -0.5); vv(1.43, 0.0); vv(2.0, 0.5); vv(1.70, 0.5); vv(1.3, 0.15); vv(1.3, 0.5); vv(1.1, 0.5); EC; } static void draw_search(Fl_Color col) { fl_color(col); BP; vv(-.4, .13); vv(-1.0, .73); vv(-.73, 1.0); vv(-.13, .4); EP; set_outline_color(col); fl_line_style(FL_SOLID, 3, 0); BC; fl_circle(.2, -.2, .6); EC; fl_line_style(FL_SOLID, 1, 0); BC; vv(-.4, .13); vv(-1.0, .73); vv(-.73, 1.0); vv(-.13, .4); EC; } static void draw_arrow1(Fl_Color col) { fl_color(col); BP; vv(-0.8,-0.4); vv(-0.8,0.4); vv(0.0,0.4); vv(0.0,-0.4); EP; BP; vv(0.0,0.8); vv(0.8,0.0); vv(0.0,-0.8); vv(0.0,-0.4); vv(0.0,0.4); EP; set_outline_color(col); BC; vv(-0.8,-0.4); vv(-0.8,0.4); vv(0.0,0.4); vv(0.0,0.8); vv(0.8,0.0); vv(0.0,-0.8); vv(0.0,-0.4); EC; } static void draw_arrow1bar(Fl_Color col) { draw_arrow1(col); rectangle(.6,-.8,.9,.8,col); } static void draw_arrow2(Fl_Color col) { fl_color(col); BP; vv(-0.3,0.8); vv(0.50,0.0); vv(-0.3,-0.8); EP; set_outline_color(col); BC; vv(-0.3,0.8); vv(0.50,0.0); vv(-0.3,-0.8); EC; } static void draw_arrow3(Fl_Color col) { fl_color(col); BP; vv(0.1,0.8); vv(0.9,0.0); vv(0.1,-0.8); EP; BP; vv(-0.7,0.8); vv(0.1,0.0); vv(-0.7,-0.8); EP; set_outline_color(col); BC; vv(0.1,0.8); vv(0.9,0.0); vv(0.1,-0.8); EC; BC; vv(-0.7,0.8); vv(0.1,0.0); vv(-0.7,-0.8); EC; } static void draw_arrowbar(Fl_Color col) { fl_color(col); BP; vv(0.2,0.8); vv(0.6,0.8); vv(0.6,-0.8); vv(0.2,-0.8); EP; BP; vv(-0.6,0.8); vv(0.2,0.0); vv(-0.6,-0.8); EP; set_outline_color(col); BC; vv(0.2,0.8); vv(0.6,0.8); vv(0.6,-0.8); vv(0.2,-0.8); EC; BC; vv(-0.6,0.8); vv(0.2,0.0); vv(-0.6,-0.8); EC; } static void draw_arrowbox(Fl_Color col) { fl_color(col); BP; vv(-0.6,0.8); vv(0.2,0.0); vv(-0.6,-0.8); EP; BC; vv(0.2,0.8); vv(0.6,0.8); vv(0.6,-0.8); vv(0.2,-0.8); EC; set_outline_color(col); BC; vv(0.2,0.8); vv(0.6,0.8); vv(0.6,-0.8); vv(0.2,-0.8); EC; BC; vv(-0.6,0.8); vv(0.2,0.0); vv(-0.6,-0.8); EC; } static void draw_bararrow(Fl_Color col) { fl_color(col); BP; vv(0.1,0.8); vv(0.9,0.0); vv(0.1,-0.8); EP; BP; vv(-0.5,0.8); vv(-0.1,0.8); vv(-0.1,-0.8); vv(-0.5,-0.8); EP; set_outline_color(col); BC; vv(0.1,0.8); vv(0.9,0.0); vv(0.1,-0.8); EC; BC; vv(-0.5,0.8); vv(-0.1,0.8); vv(-0.1,-0.8); vv(-0.5,-0.8); EC; } static void draw_doublebar(Fl_Color col) { rectangle(-0.6,-0.8,-.1,.8,col); rectangle(.1,-0.8,.6,.8,col); } static void draw_arrow01(Fl_Color col) { fl_rotate(180); draw_arrow1(col); } static void draw_arrow02(Fl_Color col) { fl_rotate(180); draw_arrow2(col); } static void draw_arrow03(Fl_Color col) { fl_rotate(180); draw_arrow3(col); } static void draw_0arrowbar(Fl_Color col) { fl_rotate(180); draw_arrowbar(col); } static void draw_0arrowbox(Fl_Color col) { fl_rotate(180); draw_arrowbox(col); } static void draw_0bararrow(Fl_Color col) { fl_rotate(180); draw_bararrow(col); } static void draw_doublearrow(Fl_Color col) { fl_color(col); BP; vv(-0.35,-0.4); vv(-0.35,0.4); vv(0.35,0.4); vv(0.35,-0.4); EP; BP; vv(0.15,0.8); vv(0.95,0.0); vv(0.15,-0.8); EP; BP; vv(-0.15,0.8); vv(-0.95,0.0); vv(-0.15,-0.8); EP; set_outline_color(col); BC; vv(-0.15,0.4); vv(0.15,0.4); vv(0.15,0.8); vv(0.95,0.0); vv(0.15,-0.8); vv(0.15,-0.4); vv(-0.15,-0.4); vv(-0.15,-0.8); vv(-0.95,0.0); vv(-0.15,0.8); EC; } static void draw_arrow(Fl_Color col) { fl_color(col); BP; vv(0.65,0.1); vv(1.0,0.0); vv(0.65,-0.1); EP; BL; vv(-1.0,0.0); vv(0.65,0.0); EL; set_outline_color(col); BL; vv(-1.0,0.0); vv(0.65,0.0); EL; BC; vv(0.65,0.1); vv(1.0,0.0); vv(0.65,-0.1); EC; } static void draw_square(Fl_Color col) { rectangle(-1,-1,1,1,col); } static void draw_circle(Fl_Color col) { fl_color(col); BP; fl_circle(0,0,1); EP; set_outline_color(col); BC; fl_circle(0,0,1); EC; } static void draw_line(Fl_Color col) { fl_color(col); BL; vv(-1.0,0.0); vv(1.0,0.0); EL; } static void draw_plus(Fl_Color col) { fl_color(col); BP; vv(-0.9,-0.15); vv(-0.9,0.15); vv(0.9,0.15); vv(0.9,-0.15); EP; BP; vv(-0.15,-0.9); vv(-0.15,0.9); vv(0.15,0.9); vv(0.15,-0.9); EP; set_outline_color(col); BC; vv(-0.9,-0.15); vv(-0.9,0.15); vv(-0.15,0.15); vv(-0.15,0.9); vv(0.15,0.9); vv(0.15,0.15); vv(0.9,0.15); vv(0.9,-0.15); vv(0.15,-0.15); vv(0.15,-0.9); vv(-0.15,-0.9); vv(-0.15,-0.15); EC; } static void draw_uparrow(Fl_Color) { fl_color(FL_LIGHT3); BL; vv(-.8,.8); vv(-.8,-.8); vv(.8,0); EL; fl_color(FL_DARK3); BL; vv(-.8,.8); vv(.8, 0); EL; } static void draw_downarrow(Fl_Color) { fl_color(FL_DARK3); BL; vv(-.8,.8); vv(-.8,-.8); vv(.8,0); EL; fl_color(FL_LIGHT3); BL; vv(-.8,.8); vv(.8, 0); EL; } static void draw_menu(Fl_Color col) { rectangle(-0.65, 0.85, 0.65, -0.25, col); rectangle(-0.65, -0.6, 0.65, -1.0, col); } // Standard UI icons... static void draw_filenew(Fl_Color c) { fl_color(c); BCP; vv(-0.7, -1.0); vv(0.1, -1.0); vv(0.1, -0.4); vv(0.7, -0.4); vv(0.7, 1.0); vv(-0.7, 1.0); ECP; fl_color(fl_lighter(c)); BP; vv(0.1, -1.0); vv(0.1, -0.4); vv(0.7, -0.4); EP; fl_color(fl_darker(c)); BC; vv(-0.7, -1.0); vv(0.1, -1.0); vv(0.1, -0.4); vv(0.7, -0.4); vv(0.7, 1.0); vv(-0.7, 1.0); EC; BL; vv(0.1, -1.0); vv(0.7, -0.4); EL; } static void draw_fileopen(Fl_Color c) { fl_color(c); BP; vv(-1.0, -0.7); vv(-0.9, -0.8); vv(-0.4, -0.8); vv(-0.3, -0.7); vv(0.6, -0.7); vv(0.6, 0.7); vv(-1.0, 0.7); EP; fl_color(fl_darker(c)); BC; vv(-1.0, -0.7); vv(-0.9, -0.8); vv(-0.4, -0.8); vv(-0.3, -0.7); vv(0.6, -0.7); vv(0.6, 0.7); vv(-1.0, 0.7); EC; fl_color(fl_lighter(c)); BP; vv(-1.0, 0.7); vv(-0.6, -0.3); vv(1.0, -0.3); vv(0.6, 0.7); EP; fl_color(fl_darker(c)); BC; vv(-1.0, 0.7); vv(-0.6, -0.3); vv(1.0, -0.3); vv(0.6, 0.7); EC; } static void draw_filesave(Fl_Color c) { fl_color(c); BP; vv(-0.9, -1.0); vv(0.9, -1.0); vv(1.0, -0.9); vv(1.0, 0.9); vv(0.9, 1.0); vv(-0.9, 1.0); vv(-1.0, 0.9); vv(-1.0, -0.9); EP; fl_color(fl_lighter(c)); BP; vv(-0.7, -1.0); vv(0.7, -1.0); vv(0.7, -0.4); vv(-0.7, -0.4); EP; BP; vv(-0.7, 0.0); vv(0.7, 0.0); vv(0.7, 1.0); vv(-0.7, 1.0); EP; fl_color(c); BP; vv(-0.5, -0.9); vv(-0.3, -0.9); vv(-0.3, -0.5); vv(-0.5, -0.5); EP; fl_color(fl_darker(c)); BC; vv(-0.9, -1.0); vv(0.9, -1.0); vv(1.0, -0.9); vv(1.0, 0.9); vv(0.9, 1.0); vv(-0.9, 1.0); vv(-1.0, 0.9); vv(-1.0, -0.9); EC; } static void draw_filesaveas(Fl_Color c) { draw_filesave(c); fl_color(fl_color_average(c, FL_WHITE, 0.25f)); BP; vv(0.6, -0.8); vv(1.0, -0.4); vv(0.0, 0.6); vv(-0.4, 0.6); vv(-0.4, 0.2); EP; fl_color(fl_darker(c)); BC; vv(0.6, -0.8); vv(1.0, -0.4); vv(0.0, 0.6); vv(-0.4, 0.6); vv(-0.4, 0.2); EC; BP; vv(-0.1, 0.6); vv(-0.4, 0.6); vv(-0.4, 0.3); EP; } static void draw_fileprint(Fl_Color c) { fl_color(c); BP; vv(-0.8, 0.0); vv(0.8, 0.0); vv(1.0, 0.2); vv(1.0, 1.0); vv(-1.0, 1.0); vv(-1.0, 0.2); EP; fl_color(fl_color_average(c, FL_WHITE, 0.25f)); BP; vv(-0.6, 0.0); vv(-0.6, -1.0); vv(0.6, -1.0); vv(0.6, 0.0); EP; fl_color(fl_lighter(c)); BP; vv(-0.6, 0.6); vv(0.6, 0.6); vv(0.6, 1.0); vv(-0.6, 1.0); EP; fl_color(fl_darker(c)); BC; vv(-0.8, 0.0); vv(-0.6, 0.0); vv(-0.6, -1.0); vv(0.6, -1.0); vv(0.6, 0.0); vv(0.8, 0.0); vv(1.0, 0.2); vv(1.0, 1.0); vv(-1.0, 1.0); vv(-1.0, 0.2); EC; BC; vv(-0.6, 0.6); vv(0.6, 0.6); vv(0.6, 1.0); vv(-0.6, 1.0); EC; } static void draw_round_arrow(Fl_Color c, float da=5.0) { double a, r, dr1=0.005, dr2=0.015; int i, j; for (j=0; j<2; j++) { if (j&1) { fl_color(c); set_outline_color(c); BC; } else { fl_color(c); BCP; } vv(-0.1, 0.0); vv(-1.0, 0.0); vv(-1.0, 0.9); for (i=27, a=140.0, r=1.0; i>0; i--, a-=da, r-=dr1) { double ar = a/180.0 * M_PI; vv(cos(ar)*r, sin(ar)*r); } for (i=27; i>=0; a+=da, i--, r-=dr2) { double ar = a/180.0 * M_PI; vv(cos(ar)*r, sin(ar)*r); } if (j&1) { EC; } else { ECP; } } } static void draw_refresh(Fl_Color c) { draw_round_arrow(c); fl_rotate(180.0); draw_round_arrow(c); fl_rotate(-180.0); } static void draw_reload(Fl_Color c) { fl_rotate(-135.0); draw_round_arrow(c, 10); fl_rotate(135.0); } static void draw_undo(Fl_Color c) { fl_translate(0.0, 0.2); fl_scale(1.0, -1.0); draw_round_arrow(c, 6); fl_scale(1.0, -1.0); fl_translate(0.0, -0.2); } static void draw_redo(Fl_Color c) { fl_scale(-1.0, 1.0); draw_undo(c); fl_scale(-1.0, 1.0); } static void fl_init_symbols(void) { static char beenhere; if (beenhere) return; beenhere = 1; symbnumb = 0; fl_add_symbol("", draw_arrow1, 1); fl_add_symbol("->", draw_arrow1, 1); fl_add_symbol(">", draw_arrow2, 1); fl_add_symbol(">>", draw_arrow3, 1); fl_add_symbol(">|", draw_arrowbar, 1); fl_add_symbol(">[]", draw_arrowbox, 1); fl_add_symbol("|>", draw_bararrow, 1); fl_add_symbol("<-", draw_arrow01, 1); fl_add_symbol("<", draw_arrow02, 1); fl_add_symbol("<<", draw_arrow03, 1); fl_add_symbol("|<", draw_0arrowbar, 1); fl_add_symbol("[]<", draw_0arrowbox, 1); fl_add_symbol("<|", draw_0bararrow, 1); fl_add_symbol("<->", draw_doublearrow, 1); fl_add_symbol("-->", draw_arrow, 1); fl_add_symbol("+", draw_plus, 1); fl_add_symbol("->|", draw_arrow1bar, 1); fl_add_symbol("arrow", draw_arrow, 1); fl_add_symbol("returnarrow", 0, 3); fl_add_symbol("square", draw_square, 1); fl_add_symbol("circle", draw_circle, 1); fl_add_symbol("line", draw_line, 1); fl_add_symbol("plus", draw_plus, 1); fl_add_symbol("menu", draw_menu, 1); fl_add_symbol("UpArrow", draw_uparrow, 1); fl_add_symbol("DnArrow", draw_downarrow, 1); fl_add_symbol("||", draw_doublebar, 1); fl_add_symbol("search", draw_search, 1); fl_add_symbol("FLTK", draw_fltk, 1); fl_add_symbol("filenew", draw_filenew, 1); fl_add_symbol("fileopen", draw_fileopen, 1); fl_add_symbol("filesave", draw_filesave, 1); fl_add_symbol("filesaveas", draw_filesaveas, 1); fl_add_symbol("fileprint", draw_fileprint, 1); fl_add_symbol("refresh", draw_refresh, 1); fl_add_symbol("reload", draw_reload, 1); fl_add_symbol("undo", draw_undo, 1); fl_add_symbol("redo", draw_redo, 1); // fl_add_symbol("file", draw_file, 1); } // // End of "$Id$". //