src/fl_diamond_box.cxx

   1 //
   2 // "$Id: fl_diamond_box.cxx 7903 2010-11-28 21:06:39Z matt $"
   3 //
   4 // Diamond box code for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 // Box drawing code for an obscure box type.
  29 // These box types are in separate files so they are not linked
  30 // in if not used.
  31
  32 // The diamond box draws best if the area is square!
  33
  34 #include <FL/Fl.H>
  35 #include <FL/fl_draw.H>
  36
  37 extern uchar* fl_gray_ramp();
  38
  39 static void fl_diamond_up_box(int x,int y,int w,int h,Fl_Color bgcolor) {
  40   w &= -2;
  41   h &= -2;
  42   int x1 = x+w/2;
  43   int y1 = y+h/2;
  44   fl_color(bgcolor); fl_polygon(x+3, y1, x1,y+3, x+w-3,y1, x1,y+h-3);
  45   uchar *g = fl_gray_ramp();
  46   fl_color(g['W']); fl_line(x+1, y1, x1, y+1, x+w-1, y1);
  47   fl_color(g['U']); fl_line(x+2, y1, x1, y+2, x+w-2, y1);
  48   fl_color(g['S']); fl_line(x+3, y1, x1, y+3, x+w-3, y1);
  49   fl_color(g['P']); fl_line(x+3, y1, x1, y+h-3, x+w-3, y1);
  50   fl_color(g['N']); fl_line(x+2, y1, x1, y+h-2, x+w-2, y1);
  51   fl_color(g['H']); fl_line(x+1, y1, x1, y+h-1, x+w-1, y1);
  52   fl_color(g['A']); fl_loop(x, y1, x1, y, x+w, y1, x1, y+h);
  53 }
  54
  55 static void fl_diamond_down_box(int x,int y,int w,int h,Fl_Color bgcolor) {
  56   w &= -2;
  57   h &= -2;
  58   int x1 = x+w/2;
  59   int y1 = y+h/2;
  60   uchar *g = fl_gray_ramp();
  61   fl_color(g['P']); fl_line(x+0, y1, x1, y+0, x+w-0, y1);
  62   fl_color(g['N']); fl_line(x+1, y1, x1, y+1, x+w-1, y1);
  63   fl_color(g['H']); fl_line(x+2, y1, x1, y+2, x+w-2, y1);
  64   fl_color(g['W']); fl_line(x+2, y1, x1, y+h-2, x+w-2, y1);
  65   fl_color(g['U']); fl_line(x+1, y1, x1, y+h-1, x+w-1, y1);
  66   fl_color(g['S']); fl_line(x+0, y1, x1, y+h-0, x+w-0, y1);
  67   fl_color(bgcolor); fl_polygon(x+3, y1, x1,y+3, x+w-3,y1, x1,y+h-3);
  68   fl_color(g['A']); fl_loop(x+3, y1, x1, y+3, x+w-3, y1, x1, y+h-3);
  69 }
  70
  71 extern void fl_internal_boxtype(Fl_Boxtype, Fl_Box_Draw_F*);
  72 Fl_Boxtype fl_define_FL_DIAMOND_BOX() {
  73   fl_internal_boxtype(_FL_DIAMOND_DOWN_BOX, fl_diamond_down_box);
  74   fl_internal_boxtype(_FL_DIAMOND_UP_BOX,fl_diamond_up_box);
  75   return _FL_DIAMOND_UP_BOX;
  76 }
  77
  78 //
  79 // End of "$Id: fl_diamond_box.cxx 7903 2010-11-28 21:06:39Z matt $".
  80 //