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/*
* Copyright (c) 1997 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2009 Aconex. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "main.h"
#include "colorscale.h"
ColorStep::~ColorStep()
{
}
ColorStep::ColorStep(SbColor col, float val)
: _color(),
_min(val)
{
_color.setValue(col.getValue());
}
ColorStep::ColorStep(float r, float g, float b, float val)
: _color(),
_min(val)
{
SbColor tmp(r, g, b);
_color.setValue(tmp.getValue());
}
ColorStep::ColorStep(uint32_t col, float val)
: _color(),
_min(val)
{
float dummy = 0.0;
_color.setPackedValue(col, dummy);
}
ColorStep::ColorStep(const ColorStep &rhs)
: _color(),
_min(rhs._min)
{
_color.setValue(rhs._color.getValue());
}
const ColorStep &
ColorStep::operator=(const ColorStep &rhs)
{
if (this != &rhs) {
_color.setValue(rhs._color.getValue());
_min = rhs._min;
}
return *this;
}
ColorScale::~ColorScale()
{
int i;
for (i = 0; i < _colors.size(); i++)
delete _colors.takeAt(i);
}
ColorScale::ColorScale(const SbColor &col)
: _colors()
{
add(new ColorStep(col));
}
ColorScale::ColorScale(float r, float g, float b)
: _colors()
{
add(new ColorStep(r, g, b));
}
ColorScale::ColorScale(uint32_t col)
: _colors()
{
add(new ColorStep(col));
}
ColorScale::ColorScale(const ColorScale &rhs)
: _colors()
{
int i;
for (i = 0; i < rhs._colors.size(); i++)
add(new ColorStep(rhs[i]));
}
const ColorScale &
ColorScale::operator=(const ColorScale &rhs)
{
int i;
if (this != &rhs) {
for (i = 0; i < _colors.size(); i++)
delete _colors.takeAt(i);
for (i = 0; i < rhs._colors.size(); i++)
add(new ColorStep(rhs[i]));
}
return *this;
}
int
ColorScale::add(ColorStep *ptr)
{
if (_colors.size()) {
float prev = _colors.last()->min();
if (prev >= ptr->min()) {
warningMsg(_POS_,
"Color step (%f) was less than previous step (%f), skipping.",
ptr->min(), prev);
return -1;
}
}
_colors.append(ptr);
return 0;
}
const ColorStep &
ColorScale::step(float value)
{
int i = _colors.size();
while (i > 0 && _colors[i-1]->min() > value)
i--;
if (i == 0)
return *(_colors[0]);
return *(_colors[i-1]);
}
QTextStream&
operator<<(QTextStream &os, const ColorScale &rhs)
{
int i;
if (rhs._colors.size() > 0) {
os << '[' << rhs[0].min();
for (i = 1; i < rhs.numSteps(); i++)
os << ", " << rhs[i].min();
os << ']';
}
else {
os << "empty";
}
return os;
}
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