ref: 176da4977dc28d538b94a9e14967e0515cfa80a7
dir: /DoConfig/fltk/src/cmap.cxx/
// // "$Id$" // // Colormap generation 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: // // http://www.fltk.org/COPYING.php // // Please report all bugs and problems on the following page: // // http://www.fltk.org/str.php // // This program produces the contents of "fl_cmap.h" as stdout // #include <gl/gl.h> #include <stdio.h> // This table is initialized with color values I got by reading the // colormap on an IRIX 4.3 machine: // "full intensity colors" have been turned down some to make white // background less intense by default. The hope is that this will make // fltk programs more friendly on color-adjusted screens. If you want // pure colors you should get them out of the colormap. //#define III 244 // maximum intensity of the basic colors // that results in errors and unshared colormap entries, so full intensity: #define III 255 // maximum intensity of the basic colors static short cmap[256][3] = { // 3-bit colormap: { 0, 0, 0}, // black {III, 0, 0}, // red { 0,III, 0}, // green {III,III, 0}, // yellow { 0, 0,III}, // blue {III, 0,III}, // magenta { 0,III,III}, // cyan {III,III,III}, // white // pastel versions of those colors, from SGI's standard color map: { 85, 85, 85}, // 1/3 gray {198,113,113}, // salmon? pale red? {113,198,113}, // pale green {142,142, 56}, // khaki {113,113,198}, // pale blue {142, 56,142}, // purple, orchid, pale magenta { 56,142,142}, // cadet blue, aquamarine, pale cyan // The next location is used for FL_SELECTION_COLOR. It formerly was 2/3 gray // but this is changed to be the Windows blue color. This allows the default // behavior on both X and Windows to match: { 0, 0,128}, //{170,170,170}, // old 2/3 gray color // These next 16 are the FL_FREE_COLOR area. In some versions of fltk // these were filled with random colors that a Irix 5.3 machine placed // in these locations. Other versions of fltk filled this with the 1/3 // gray above to discourage their use. This newest version uses colors // that NewTek has assigned for their GUI: #if 0 // The Irix 5.3 colors: { 16, 16, 16}, {128, 40,128}, {198, 30, 30}, { 66, 30, 30}, {176,140,140}, { 0, 20, 20}, { 20, 10, 10}, { 40, 20, 20}, { 60, 30, 30}, { 0, 80, 80}, { 0, 40, 40}, { 20, 20, 0}, { 40, 40, 0}, { 80, 80, 10}, {150,150, 20}, {160, 10, 10}, #else // The NewTek colors: (from George Yohng) {168,168,152}, {232,232,216}, {104,104, 88}, {152,168,168}, {216,232,232}, { 88,104,104}, {156,156,168}, {220,220,232}, { 92, 92,104}, {156,168,156}, {220,232,220}, { 92,104, 92}, {144,144,144}, {192,192,192}, { 80, 80, 80}, {160,160,160}, #endif // The rest of the colormap is a gray ramp and table, filled in below: }; // This is Fl::background from Fl_get_system_colors.cxx, with modifications: #define FL_GRAY_RAMP 32 #define FL_NUM_GRAY 24 #define FL_GRAY 49 // old value is 47 typedef unsigned char uchar; #include <math.h> void background(uchar r, uchar g, uchar b) { // replace the gray ramp so that color 47 (by default 2/3) is this color if (!r) r = 1; else if (r==255) r = 254; double powr = log(r/255.0)/log((FL_GRAY-FL_GRAY_RAMP)/(FL_NUM_GRAY-1.0)); if (!g) g = 1; else if (g==255) g = 254; double powg = log(g/255.0)/log((FL_GRAY-FL_GRAY_RAMP)/(FL_NUM_GRAY-1.0)); if (!b) b = 1; else if (b==255) b = 254; double powb = log(b/255.0)/log((FL_GRAY-FL_GRAY_RAMP)/(FL_NUM_GRAY-1.0)); for (int i = 0; i < FL_NUM_GRAY; i++) { double gray = i/(FL_NUM_GRAY-1.0); cmap[i+FL_GRAY_RAMP][0] = uchar(pow(gray,powr)*255+.5); cmap[i+FL_GRAY_RAMP][1] = uchar(pow(gray,powg)*255+.5); cmap[i+FL_GRAY_RAMP][2] = uchar(pow(gray,powb)*255+.5); } } int main() { int i,r,g,b; #if 0 /* Read colormap colors into internal table */ long cmwin; noport(); cmwin = winopen("CM"); for (i=0; i<256; i++) getmcolor(i,&cmap[i][0],&cmap[i][1],&cmap[i][2]); winclose(cmwin); #endif // overwrite the X allocation area with one color so people are // discouraged from using it: //for (i=16; i<32; i++) {cmap[i][0]=cmap[i][1]=cmap[i][2] = 85;} // fill in the gray ramp: background(0xc0, 0xc0, 0xc0); // microsoft colors // background(170, 170, 170); // old fltk colors // copy the 1/3 and 2/3 gray to the closest locations in gray ramp: cmap[39][0] = cmap[39][1] = cmap[39][2] = 85; cmap[47][0] = cmap[47][1] = cmap[47][2] = 170; // fill in the color cube i = 56; for (b=0; b<5; b++) for (r=0; r<5; r++) for (g=0; g<8; g++) { cmap[i][0] = r*255/4; cmap[i][1] = g*255/7; cmap[i][2] = b*255/4; i++; } for (i=0; i<256; i++) { printf("\t0x%02x%02x%02x00",cmap[i][0],cmap[i][1],cmap[i][2]); if (i < 255) printf(",\n"); } printf("\n"); return 0; } // // End of "$Id$". //