ef36be385e
Add FL_BACKGROUND_COLOR, FL_BACKGROUND2_COLOR, and FL_FOREGROUND_COLOR, and use them instead of FL_GRAY, FL_WHITE, and FL_BLACK, respectively. (FL_GRAY defined to FL_BACKGROUND_COLOR for back-compatibility) Add fl_rgb_color(uchar g) inline method to map 8-bit grayscale to 24-bit RGB color. Doco updates for all of this... git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2072 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
//
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// "$Id: fl_set_gray.cxx,v 1.5.2.3.2.2 2002/04/11 10:46:19 easysw Exp $"
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//
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// Background (gray) color routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2002 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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// -fg, -bg, and -bg2 switches
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#include <FL/Fl.H>
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void Fl::background(uchar r, uchar g, uchar b) {
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// replace the gray ramp so that color 47 is this color
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int i;
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for (i = 32; i <= 47; i++) {
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int m = (i-32)*255/23;
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Fl::set_color((Fl_Color)i,r*m/166,g*m/166,b*m/166);
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}
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for (; i < 56; i++) {
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int m = 255-(i-32)*255/23;
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Fl::set_color((Fl_Color)i,255-(255-r)*m/89,255-(255-g)*m/89,255-(255-b)*m/89);
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}
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}
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static void set_others() {
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uchar r,g,b; Fl::get_color(FL_FOREGROUND_COLOR,r,g,b);
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uchar r1,g1,b1; Fl::get_color(FL_BACKGROUND2_COLOR,r1,g1,b1);
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Fl::set_color(FL_INACTIVE_COLOR,(2*r+r1)/3, (2*g+g1)/3, (2*b+b1)/3);
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Fl::set_color(FL_SELECTION_COLOR,(2*r1+r)/3, (2*g1+g)/3, (2*b1+b)/3);
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}
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void Fl::foreground(uchar r, uchar g, uchar b) {
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Fl::set_color(FL_FOREGROUND_COLOR,r,g,b);
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set_others();
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}
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void Fl::background2(uchar r, uchar g, uchar b) {
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Fl::set_color(FL_BACKGROUND2_COLOR,r,g,b);
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set_others();
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}
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//
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// End of "$Id: fl_set_gray.cxx,v 1.5.2.3.2.2 2002/04/11 10:46:19 easysw Exp $".
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//
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