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// Copyright (C) 1999-2017
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
#include "colorbarrgb.h"
#include "util.h"
#include "ps.h"
ColorbarRGB::ColorbarRGB(Tcl_Interp* i,Tk_Canvas c,Tk_Item* item)
: ColorbarBase(i,c,item)
{
channel = 0;
for (int i=0; i<3; i++) {
bias[i] = .5;
contrast[i] = 1.0;
}
}
int ColorbarRGB::calcContrastBias(int i, float bb, float cc)
{
// if default (contrast = 1.0 && bias = .5) return
if (fabs(bb - 0.5) < 0.0001 && fabs(cc - 1.0) < 0.0001)
return i;
// map i to range of 0 to 1.0
// shift by bias (if invert, bias = 1-bias)
// multiply by contrast
// shift to center of region
// expand back to number of dynamic colors
float b = invert ? 1-bb : bb;
int r = (int)(((((float)i / colorCount) - b) * cc + .5 ) * colorCount);
// clip to bounds if out of range
if (r < 0)
return 0;
else if (r >= colorCount)
return colorCount-1;
else
return r;
}
void ColorbarRGB::psHorz(ostream& str, Filter& filter, int width, int height)
{
// red
for (int jj=0; jj<(int)(height/3.); jj++) {
for (int ii=0; ii<width; ii++) {
unsigned char red = colorCells[(int)(double(ii)/width*colorCount)*3+2];
unsigned char green = 0;
unsigned char blue = 0;
switch (psColorSpace) {
case BW:
case GRAY:
filter << RGB2Gray(red, green, blue);
break;
case RGB:
filter << red << green << blue;
break;
case CMYK:
{
unsigned char cyan, magenta, yellow, black;
RGB2CMYK(red, green, blue, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
break;
}
str << filter;
}
}
// green
for (int jj=(int)(height/3.); jj<(int)(height*2/3.); jj++) {
for (int ii=0; ii<width; ii++) {
unsigned char red = 0;
unsigned char green = colorCells[(int)(double(ii)/width*colorCount)*3+1];
unsigned char blue = 0;
switch (psColorSpace) {
case BW:
case GRAY:
filter << RGB2Gray(red, green, blue);
break;
case RGB:
filter << red << green << blue;
break;
case CMYK:
{
unsigned char cyan, magenta, yellow, black;
RGB2CMYK(red, green, blue, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
break;
}
str << filter;
}
}
// blue
for (int jj=(int)(height*2/3.); jj<height; jj++) {
for (int ii=0; ii<width; ii++) {
unsigned char red = 0;
unsigned char green = 0;
unsigned char blue = colorCells[(int)(double(ii)/width*colorCount)*3];
switch (psColorSpace) {
case BW:
case GRAY:
filter << RGB2Gray(red, green, blue);
break;
case RGB:
filter << red << green << blue;
break;
case CMYK:
{
unsigned char cyan, magenta, yellow, black;
RGB2CMYK(red, green, blue, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
break;
}
str << filter;
}
}
}
void ColorbarRGB::psVert(ostream& str, Filter& filter, int width, int height)
{
for (int jj=0; jj<height; jj++) {
int kk = (int)(double(jj)/height*colorCount)*3;
unsigned char red = colorCells[kk+2];
unsigned char green = colorCells[kk+1];
unsigned char blue = colorCells[kk];
switch (psColorSpace) {
case BW:
case GRAY:
for (int ii=0; ii<(int)(width/3.); ii++)
filter << RGB2Gray(red, 0, 0);
for (int ii=(int)(width/3.); ii<(int)(width*2/3.); ii++)
filter << RGB2Gray(0, green, 0);
for (int ii=(int)(width*2/3.); ii<width; ii++)
filter << RGB2Gray(0, 0, blue);
break;
case RGB:
for (int ii=0; ii<(int)(width/3.); ii++)
filter << red << 0 << 0;
for (int ii=(int)(width/3.); ii<(int)(width*2/3.); ii++)
filter << 0 << green << 0;
for (int ii=(int)(width*2/3.); ii<width; ii++)
filter << 0 << 0 << blue;
break;
case CMYK:
{
unsigned char cyan, magenta, yellow, black;
for (int ii=0; ii<(int)(width/3.); ii++) {
RGB2CMYK(red, 0, 0, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
for (int ii=(int)(width/3.); ii<(int)(width*2/3.); ii++) {
RGB2CMYK(0, green, 0, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
for (int ii=(int)(width*2/3.); ii<width; ii++) {
RGB2CMYK(0, 0, blue, &cyan, &magenta, &yellow, &black);
filter << cyan << magenta << yellow << black;
}
}
break;
}
str << filter;
}
}
void ColorbarRGB::reset()
{
for (int i=0; i<3; i++) {
bias[i] = .5;
contrast[i] = 1.0;
}
invert = 0;
updateColors();
}
void ColorbarRGB::updateColorCells()
{
// fill rgb table
// note: its filled bgr to match XImage
// for(int i=0; i<colorCount; i++) {
for(int i=0, j=colorCount-1; i<colorCount; i++, j--) {
int idr = invert ? calcContrastBias(j,bias[0],contrast[0]) :
calcContrastBias(i,bias[0],contrast[0]);
int idg = invert ? calcContrastBias(j,bias[1],contrast[1]) :
calcContrastBias(i,bias[1],contrast[1]);
int idb = invert ? calcContrastBias(j,bias[2],contrast[2]) :
calcContrastBias(i,bias[2],contrast[2]);
colorCells[i*3] = (int)(256.*idr/colorCount);
colorCells[i*3+1] = (int)(256.*idg/colorCount);
colorCells[i*3+2] = (int)(256.*idb/colorCount);
}
}
// Commands
void ColorbarRGB::adjustCmd(float c, float b)
{
contrast[channel] = c;
bias[channel] = b;
updateColors();
}
void ColorbarRGB::getBiasCmd()
{
ostringstream str;
str << bias[channel] << ends;
Tcl_AppendResult(interp, str.str().c_str(), NULL);
}
void ColorbarRGB::getColorbarCmd()
{
ostringstream str;
str << "rgb ";
for (int i=0; i<3; i++)
str << bias[i] << ' ';
for (int i=0; i<3; i++)
str << contrast[i] << ' ';
str << invert << ends;
Tcl_AppendResult(interp, str.str().c_str(), NULL);
}
void ColorbarRGB::getColormapCmd()
{
// use fixed so that the frame parser will not be confused with an int
// as the first number
ostringstream str;
str << "rgb " << setiosflags(ios::fixed);
for (int i=0; i<3; i++)
str << bias[i] << ' ';
for (int i=0; i<3; i++)
str << contrast[i] << ' ';
str << invert << ' ';
str << (unsigned short*)colorCells << ' ' << colorCount << ends;
Tcl_AppendResult(interp, str.str().c_str(), NULL);
}
void ColorbarRGB::getColormapNameCmd(int id)
{
Tcl_AppendResult(interp, "rgb", NULL);
}
void ColorbarRGB::getColormapFileNameCmd(int id)
{
Tcl_AppendResult(interp, "rgb.rgb", NULL);
}
void ColorbarRGB::getContrastCmd()
{
ostringstream str;
str << contrast[channel] << ends;
Tcl_AppendResult(interp, str.str().c_str(), NULL);
}
void ColorbarRGB::getCurrentNameCmd()
{
Tcl_AppendResult(interp, "rgb", NULL);
}
void ColorbarRGB::getCurrentIDCmd()
{
Tcl_AppendResult(interp, "rgb", NULL);
}
void ColorbarRGB::getCurrentFileNameCmd()
{
Tcl_AppendResult(interp, "rgb", NULL);
}
void ColorbarRGB::getRGBChannelCmd()
{
switch (channel) {
case 0:
Tcl_AppendResult(interp, "red", NULL);
return;
case 1:
Tcl_AppendResult(interp, "green", NULL);
return;
case 2:
Tcl_AppendResult(interp, "blue", NULL);
return;
}
}
void ColorbarRGB::setColorbarCmd(float rb, float gb, float bb,
float rc, float gc, float bc, int i)
{
bias[0] = rb;
bias[1] = gb;
bias[2] = bb;
contrast[0] = rc;
contrast[1] = gc;
contrast[2] = bc;
invert = i;
updateColors();
}
void ColorbarRGB::setRGBChannelCmd(const char* c)
{
if (!strncmp(c,"red",3))
channel = 0;
else if (!strncmp(c,"gre",3))
channel = 1;
else if (!strncmp(c,"blu",3))
channel = 2;
else
channel = 0;
}
#ifdef MAC_OSX_TK
void ColorbarRGB::macosx(float scale, int width, int height,
const Vector& v, const Vector& s)
{
if (!colorCells)
return;
// destination
unsigned char* dst = new unsigned char[width*height*4];
unsigned char* dptr = dst;
if (!((ColorbarBaseOptions*)options)->orientation) {
// blue
for (int jj=0; jj<(int)(height/3.); jj++)
for (int ii=0; ii<width; ii++) {
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3];
*dptr++ = 0;
}
// green
for (int jj=(int)(height/3.); jj<(int)(height*2/3.); jj++)
for (int ii=0; ii<width; ii++) {
*dptr++ = 0;
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3+1];
*dptr++ = 0;
*dptr++ = 0;
}
// red
for (int jj=(int)(height*2/3.); jj<height; jj++)
for (int ii=0; ii<width; ii++) {
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3+2];
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = 0;
}
}
else {
for (int jj=0; jj<height; jj++) {
int kk = (int)(double(jj)/height*colorCount)*3;
// blue
for (int ii=0; ii<(int)(width/3.); ii++) {
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = colorCells[kk];
*dptr++ = 0;
}
// green
for (int ii=(int)(width/3.); ii<(int)(width*2/3.); ii++) {
*dptr++ = 0;
*dptr++ = colorCells[kk+1];
*dptr++ = 0;
*dptr++ = 0;
}
// red
for (int ii=(int)(width*2/3.); ii<width; ii++) {
*dptr++ = colorCells[kk+2];
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = 0;
}
}
}
macosxBitmapCreate(dst, width, height, v, s);
if (dst)
delete [] dst;
}
#endif
#ifdef __WIN32
void ColorbarRGB::win32(float scale, int width, int height,
const Vector& v, const Vector& s)
{
if (!colorCells)
return;
// destination (width must be aligned on 4-byte DWORD boundary)
int jjwidth=(((width+3)/4)*4);
// extra alignment padding which we have to skip over for each row
int jjpad=(jjwidth-width)*3;
unsigned char* dst = new unsigned char[jjwidth*height*3];
if (!dst)
return;
memset(dst, '\0', jjwidth*height*3);
unsigned char* dptr = dst;
if (!((ColorbarBaseOptions*)options)->orientation) {
// blue
for (int jj=0; jj<(int)(height/3.); jj++) {
for (int ii=0; ii<width; ii++) {
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3];
*dptr++ = 0;
*dptr++ = 0;
}
dptr += jjpad;
}
// green
for (int jj=(int)(height/3.); jj<(int)(height*2/3.); jj++) {
for (int ii=0; ii<width; ii++) {
*dptr++ = 0;
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3+1];
*dptr++ = 0;
}
dptr += jjpad;
}
// red
for (int jj=(int)(height*2/3.); jj<height; jj++) {
for (int ii=0; ii<width; ii++) {
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = colorCells[(int)(double(ii)/width*colorCount)*3+2];
}
dptr += jjpad;
}
}
else {
for (int jj=0; jj<height; jj++) {
int kk = (int)(double(jj)/height*colorCount)*3;
// blue
for (int ii=0; ii<(int)(width/3.); ii++) {
*dptr++ = colorCells[kk];
*dptr++ = 0;
*dptr++ = 0;
}
dptr += jjpad;
// green
for (int ii=(int)(width/3.); ii<(int)(width*2/3.); ii++) {
*dptr++ = 0;
*dptr++ = colorCells[kk+1];
*dptr++ = 0;
}
dptr += jjpad;
// red
for (int ii=(int)(width*2/3.); ii<width; ii++) {
*dptr++ = 0;
*dptr++ = 0;
*dptr++ = colorCells[kk+2];
}
dptr += jjpad;
}
}
win32Clip(v,s);
win32BitmapCreate(dst, jjwidth, height, v, s);
win32Clip(Vector(INT_MIN,INT_MIN),Vector(INT_MAX,INT_MAX));
if (dst)
delete [] dst;
}
#endif
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