fltk/test/symbols.cxx

//
// Symbol test program 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:
//
//     https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
//     https://www.fltk.org/bugs.php
//

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Value_Slider.H>
#include <FL/fl_draw.H>

int N = 0;
#define W 70
#define H 70
#define ROWS 6
#define COLS 7

Fl_Double_Window *window;
Fl_Value_Slider *orientation;
Fl_Value_Slider *size;

void slider_cb(Fl_Widget *, void *) {
  static char buf[80];
  int val = (int)orientation->value();
  int sze = (int)size->value();
  for (int i = window->children(); i--; ) {          // all window children
    Fl_Widget *wc = window->child(i);
    const char *l = (const char *)(wc->user_data());
    if ( l && *l == '@' ) {                       // all children with '@'
      l ++;
      if ( wc->box() == FL_NO_BOX ) {             // ascii legend?
        if (val&&sze) snprintf(buf, sizeof(buf), "@@%+d%d%s", sze, val, l);
        else if (val) snprintf(buf, sizeof(buf), "@@%d%s", val, l);
        else if (sze) snprintf(buf, sizeof(buf), "@@%+d%s", sze, l);
        else          snprintf(buf, sizeof(buf), "@@%s", l);
      } else {                                    // box with symbol
        if (val&&sze) snprintf(buf, sizeof(buf), "@%+d%d%s", sze, val, l);
        else if (val) snprintf(buf, sizeof(buf), "@%d%s", val, l);
        else if (sze) snprintf(buf, sizeof(buf), "@%+d%s", sze, l);
        else          snprintf(buf, sizeof(buf), "@%s", l);
      }
      wc->copy_label(buf);
    }
  }
  window->redraw();
}

void bt(const char *name) {
  int x = N%COLS;
  int y = N/COLS;
  char buf[255];
  N++;
  x = x*W+10;
  y = y*H+10;
  snprintf(buf, sizeof(buf), "@%s", name);
  Fl_Box *a = new Fl_Box(x,y,W-20,H-20);
  a->box(FL_NO_BOX);
  a->copy_label(buf);
  a->align(FL_ALIGN_BOTTOM);
  a->labelsize(11);
  a->user_data((void *)name);
  Fl_Box *b = new Fl_Box(x,y,W-20,H-20);
  b->box(FL_UP_BOX);
  b->copy_label(name);
  b->labelcolor(FL_DARK3);
  b->user_data((void *)name);
}

int main(int argc, char ** argv) {
  window = new Fl_Double_Window(COLS*W,ROWS*H+60);
bt("@->");
bt("@>");
bt("@>>");
bt("@>|");
bt("@>[]");
bt("@|>");
bt("@<-");
bt("@<");
bt("@<<");
bt("@|<");
bt("@[]<");
bt("@<|");
bt("@<->");
bt("@-->");
bt("@+");
bt("@->|");
bt("@||");
bt("@arrow");
bt("@returnarrow");
bt("@square");
bt("@circle");
bt("@line");
bt("@menu");
bt("@UpArrow");
bt("@DnArrow");
bt("@search");
bt("@FLTK");
bt("@filenew");
bt("@fileopen");
bt("@filesave");
bt("@filesaveas");
bt("@fileprint");
bt("@refresh");
bt("@reload");
bt("@undo");
bt("@redo");
bt("@import");
bt("@export");

  orientation = new Fl_Value_Slider(
    (int)(window->w()*.05+.5), window->h()-40,
    (int)(window->w()*.42+.5), 16, "Orientation");
  orientation->type(FL_HORIZONTAL);
  orientation->range(0.0, 9.0);
  orientation->value(0.0);
  orientation->step(1);
  orientation->callback(slider_cb, 0);

  size = new Fl_Value_Slider(
    (int)(window->w()*.53+.5), window->h()-40,
    (int)(window->w()*.42+.5), 16, "Size");
  size->type(FL_HORIZONTAL);
  size->range(-3.0, 9.0);
  size->value(0.0);
  size->step(1);
  size->callback(slider_cb, 0);

  window->resizable(window);
  window->show(argc,argv);
  return Fl::run();
}