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colormapwidgets.cpp
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colormapwidgets.cpp
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/*
* Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020
* Computer Graphics Group, University of Siegen
* Written by Martin Lambers <[email protected]>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "gui.hpp"
#include <QGridLayout>
#include <QLabel>
#include <QSlider>
#include <QDoubleSpinBox>
#include <QPushButton>
#include <QImage>
#include <QListWidget>
#include <QPushButton>
#include <QColorDialog>
#include <QtMath>
#include "colormapwidgets.hpp"
#include "colormap.hpp"
/* References */
static QString brewerlike_reference = QString("Relevant paper: "
"M. Wijffelaars, R. Vliegen, J. J. van Wijk, E-J. van der Linden, "
"<a href=\"https://dx.doi.org/10.1111/j.1467-8659.2008.01203.x\">Generating Color Palettes using Intuitive Parameters</a>, "
"Computer Graphics Forum 27(3), May 2008.");
static QString pu_reference = QString("Relevant paper: "
"M. Lambers, "
"<a href=\"https://dx.doi.org/10.2312/evs.20201048\">Interactive Creation of Perceptually Uniform Color Maps</a>, "
"Proc. EuroVis Short Papers, May 2020.");
static QString cubehelix_reference = QString("Relevant paper: "
"D. A. Green, "
"<a href=\"https://ui.adsabs.harvard.edu/abs/2011BASI...39..289G/abstract\">A colour scheme for the display of astronomical intensity</a>, "
"Bulletin of the Astronomical Society of India 39(2), June 2011.");
static QString moreland_reference = QString("Relevant paper: "
"K. Moreland, "
"<a href=\"https://www.kennethmoreland.com/color-maps/\">Diverging Color Maps for Scientific Visualization</a>, "
"Proc. Int. Symp. Visual Computing, December 2009."); // DOI 10.1007/978-3-642-10520-3_9.
static QString mcnames_references = QString("Relevant paper: "
"J. McNames, "
"<a href=\"https://dx.doi.org/10.1109/MSP.2006.1593340\">An Effective Color Scale for Simultaneous Color and Gray-Scale Publications</a>, "
"IEEE Signal Processing Magazine 23(1), January 2006.");
/* ColorMapCombinedSliderSpinBox */
ColorMapCombinedSliderSpinBox::ColorMapCombinedSliderSpinBox(float minval, float maxval, float step) :
_update_lock(false),
minval(minval), maxval(maxval), step(step)
{
slider = new QSlider(Qt::Horizontal);
slider->setMinimum(0);
slider->setMaximum((maxval - minval) / step);
slider->setSingleStep(step);
spinbox = new QDoubleSpinBox();
spinbox->setRange(minval, maxval);
spinbox->setSingleStep(step);
spinbox->setDecimals(std::log10(1.0f / step));
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(sliderChanged()));
connect(spinbox, SIGNAL(valueChanged(double)), this, SLOT(spinboxChanged()));
}
float ColorMapCombinedSliderSpinBox::value() const
{
return spinbox->value();
}
void ColorMapCombinedSliderSpinBox::setValue(float v)
{
_update_lock = true;
spinbox->setValue(v);
slider->setValue((v - minval) / step);
_update_lock = false;
}
void ColorMapCombinedSliderSpinBox::sliderChanged()
{
if (!_update_lock) {
_update_lock = true;
int i = slider->value();
float v = i * step + minval;
spinbox->setValue(v);
_update_lock = false;
emit valueChanged(value());
}
}
void ColorMapCombinedSliderSpinBox::spinboxChanged()
{
if (!_update_lock) {
_update_lock = true;
float v = spinbox->value();
int i = (v - minval) / step;
slider->setValue(i);
_update_lock = false;
emit valueChanged(value());
}
}
/* ColorMapWidget */
ColorMapWidget::ColorMapWidget() : QWidget()
{
}
ColorMapWidget::~ColorMapWidget()
{
}
QImage ColorMapWidget::colorMapImage(const QVector<unsigned char>& colormap, int width, int height)
{
QVector<QColor> qcolormap(colormap.size() / 3);
for (int i = 0; i < qcolormap.size(); i++)
qcolormap[i] = QColor(colormap[3 * i + 0], colormap[3 * i + 1], colormap[3 * i + 2]);
if (width <= 0)
width = qcolormap.size();
if (height <= 0)
height = qcolormap.size();
QImage img(width, height, QImage::Format_RGB32);
bool y_direction = (height > width);
if (y_direction) {
for (int y = 0; y < height; y++) {
float entry_height = height / static_cast<float>(qcolormap.size());
int i = y / entry_height;
QRgb rgb = qcolormap[i].rgb();
QRgb* scanline = reinterpret_cast<QRgb*>(img.scanLine(height - 1 - y));
for (int x = 0; x < width; x++)
scanline[x] = rgb;
}
} else {
for (int y = 0; y < height; y++) {
QRgb* scanline = reinterpret_cast<QRgb*>(img.scanLine(y));
for (int x = 0; x < width; x++) {
float entry_width = width / static_cast<float>(qcolormap.size());
int i = x / entry_width;
scanline[x] = qcolormap[i].rgb();
}
}
}
return img;
}
/* Helper functions for ColorMap*Widget */
static void hideWidgetButPreserveSize(QWidget* widget)
{
QSizePolicy sp = widget->sizePolicy();
sp.setRetainSizeWhenHidden(true);
widget->setSizePolicy(sp);
widget->hide();
}
/* ColorMapBrewerSequentialWidget */
ColorMapBrewerSequentialWidget::ColorMapBrewerSequentialWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 2, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 2, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 2, 3);
QLabel* divergence_label = new QLabel("Divergence:");
layout->addWidget(divergence_label, 3, 0);
ColorMapCombinedSliderSpinBox* divergence_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(divergence_changer->slider, 3, 1, 1, 2);
layout->addWidget(divergence_changer->spinbox, 3, 3);
hideWidgetButPreserveSize(divergence_label);
hideWidgetButPreserveSize(divergence_changer->slider);
hideWidgetButPreserveSize(divergence_changer->spinbox);
QLabel* warmth_label = new QLabel("Warmth:");
layout->addWidget(warmth_label, 4, 0);
_warmth_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_warmth_changer->slider, 4, 1, 1, 2);
layout->addWidget(_warmth_changer->spinbox, 4, 3);
QLabel* contrast_label = new QLabel("Contrast:");
layout->addWidget(contrast_label, 5, 0);
_contrast_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_contrast_changer->slider, 5, 1, 1, 2);
layout->addWidget(_contrast_changer->spinbox, 5, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 6, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_saturation_changer->slider, 6, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 6, 3);
QLabel* brightness_label = new QLabel("Brightness:");
layout->addWidget(brightness_label, 7, 0);
_brightness_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_brightness_changer->slider, 7, 1, 1, 2);
layout->addWidget(_brightness_changer->spinbox, 7, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 8, 0, 1, 4);
layout->setRowStretch(8, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_warmth_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_contrast_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_brightness_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapBrewerSequentialWidget::~ColorMapBrewerSequentialWidget()
{
}
void ColorMapBrewerSequentialWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::BrewerSequentialDefaultHue));
_warmth_changer->setValue(ColorMap::BrewerSequentialDefaultWarmth);
_contrast_changer->setValue(ColorMap::BrewerSequentialDefaultContrast);
_saturation_changer->setValue(ColorMap::BrewerSequentialDefaultSaturation);
_brightness_changer->setValue(ColorMap::BrewerSequentialDefaultBrightness);
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapBrewerSequentialWidget::colorMap(int* clipped) const
{
int n;
float h, c, s, b, w;
parameters(n, h, c, s, b, w);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::BrewerSequential(n, colormap.data(), h, c, s, b, w);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapBrewerSequentialWidget::reference() const
{
return brewerlike_reference;
}
void ColorMapBrewerSequentialWidget::parameters(int& n, float& hue,
float& contrast, float& saturation, float& brightness, float& warmth) const
{
n = _n_spinbox->value();
hue = qDegreesToRadians(_hue_changer->value());
contrast = _contrast_changer->value();
saturation = _saturation_changer->value();
brightness = _brightness_changer->value();
warmth = _warmth_changer->value();
}
void ColorMapBrewerSequentialWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapBrewerDivergingWidget */
ColorMapBrewerDivergingWidget::ColorMapBrewerDivergingWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 2, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 2, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 2, 3);
QLabel* divergence_label = new QLabel("Divergence:");
layout->addWidget(divergence_label, 3, 0);
_divergence_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_divergence_changer->slider, 3, 1, 1, 2);
layout->addWidget(_divergence_changer->spinbox, 3, 3);
QLabel* warmth_label = new QLabel("Warmth:");
layout->addWidget(warmth_label, 4, 0);
_warmth_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_warmth_changer->slider, 4, 1, 1, 2);
layout->addWidget(_warmth_changer->spinbox, 4, 3);
QLabel* contrast_label = new QLabel("Contrast:");
layout->addWidget(contrast_label, 5, 0);
_contrast_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_contrast_changer->slider, 5, 1, 1, 2);
layout->addWidget(_contrast_changer->spinbox, 5, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 6, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_saturation_changer->slider, 6, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 6, 3);
QLabel* brightness_label = new QLabel("Brightness:");
layout->addWidget(brightness_label, 7, 0);
_brightness_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_brightness_changer->slider, 7, 1, 1, 2);
layout->addWidget(_brightness_changer->spinbox, 7, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 8, 0, 1, 4);
layout->setRowStretch(8, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_divergence_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_warmth_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_contrast_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_brightness_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapBrewerDivergingWidget::~ColorMapBrewerDivergingWidget()
{
}
void ColorMapBrewerDivergingWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(257);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::BrewerDivergingDefaultHue));
_divergence_changer->setValue(qRadiansToDegrees(ColorMap::BrewerDivergingDefaultDivergence));
_warmth_changer->setValue(ColorMap::BrewerDivergingDefaultWarmth);
_contrast_changer->setValue(ColorMap::BrewerDivergingDefaultContrast);
_saturation_changer->setValue(ColorMap::BrewerDivergingDefaultSaturation);
_brightness_changer->setValue(ColorMap::BrewerDivergingDefaultBrightness);
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapBrewerDivergingWidget::colorMap(int* clipped) const
{
int n;
float h, d, c, s, b, w;
parameters(n, h, d, c, s, b, w);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::BrewerDiverging(n, colormap.data(), h, d, c, s, b, w);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapBrewerDivergingWidget::reference() const
{
return brewerlike_reference;
}
void ColorMapBrewerDivergingWidget::parameters(int& n, float& hue, float& divergence,
float& contrast, float& saturation, float& brightness, float& warmth) const
{
n = _n_spinbox->value();
hue = qDegreesToRadians(_hue_changer->value());
divergence = qDegreesToRadians(_divergence_changer->value());
contrast = _contrast_changer->value();
saturation = _saturation_changer->value();
brightness = _brightness_changer->value();
warmth = _warmth_changer->value();
}
void ColorMapBrewerDivergingWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapBrewerQualitativeWidget */
ColorMapBrewerQualitativeWidget::ColorMapBrewerQualitativeWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 2, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 2, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 2, 3);
QLabel* divergence_label = new QLabel("Divergence:");
layout->addWidget(divergence_label, 3, 0);
_divergence_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_divergence_changer->slider, 3, 1, 1, 2);
layout->addWidget(_divergence_changer->spinbox, 3, 3);
QLabel* warmth_label = new QLabel("Warmth:");
layout->addWidget(warmth_label, 4, 0);
ColorMapCombinedSliderSpinBox* warmth_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(warmth_changer->slider, 4, 1, 1, 2);
layout->addWidget(warmth_changer->spinbox, 4, 3);
hideWidgetButPreserveSize(warmth_label);
hideWidgetButPreserveSize(warmth_changer->slider);
hideWidgetButPreserveSize(warmth_changer->spinbox);
QLabel* contrast_label = new QLabel("Contrast:");
layout->addWidget(contrast_label, 5, 0);
_contrast_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_contrast_changer->slider, 5, 1, 1, 2);
layout->addWidget(_contrast_changer->spinbox, 5, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 6, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_saturation_changer->slider, 6, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 6, 3);
QLabel* brightness_label = new QLabel("Brightness:");
layout->addWidget(brightness_label, 7, 0);
_brightness_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_brightness_changer->slider, 7, 1, 1, 2);
layout->addWidget(_brightness_changer->spinbox, 7, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 8, 0, 1, 4);
layout->setRowStretch(8, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_divergence_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_contrast_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_brightness_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapBrewerQualitativeWidget::~ColorMapBrewerQualitativeWidget()
{
}
void ColorMapBrewerQualitativeWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::BrewerQualitativeDefaultHue));
_divergence_changer->setValue(qRadiansToDegrees(ColorMap::BrewerQualitativeDefaultDivergence));
_contrast_changer->setValue(ColorMap::BrewerQualitativeDefaultContrast);
_saturation_changer->setValue(ColorMap::BrewerQualitativeDefaultSaturation);
_brightness_changer->setValue(ColorMap::BrewerQualitativeDefaultBrightness);
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapBrewerQualitativeWidget::colorMap(int* clipped) const
{
int n;
float h, d, c, s, b;
parameters(n, h, d, c, s, b);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::BrewerQualitative(n, colormap.data(), h, d, c, s, b);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapBrewerQualitativeWidget::reference() const
{
return brewerlike_reference;
}
void ColorMapBrewerQualitativeWidget::parameters(int& n, float& hue, float& divergence,
float& contrast, float& saturation, float& brightness) const
{
n = _n_spinbox->value();
hue = qDegreesToRadians(_hue_changer->value());
divergence = qDegreesToRadians(_divergence_changer->value());
contrast = _contrast_changer->value();
saturation = _saturation_changer->value();
brightness = _brightness_changer->value();
}
void ColorMapBrewerQualitativeWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapPUSequentialLightnessWidget */
ColorMapPUSequentialLightnessWidget::ColorMapPUSequentialLightnessWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* lightness_range_label = new QLabel("Lightness range:");
layout->addWidget(lightness_range_label, 2, 0);
_lightness_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_lightness_range_changer->slider, 2, 1, 1, 2);
layout->addWidget(_lightness_range_changer->spinbox, 2, 3);
QLabel* saturation_range_label = new QLabel("Saturation range:");
layout->addWidget(saturation_range_label, 3, 0);
_saturation_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_saturation_range_changer->slider, 3, 1, 1, 2);
layout->addWidget(_saturation_range_changer->spinbox, 3, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 4, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_saturation_changer->slider, 4, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 4, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 5, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 5, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 5, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 6, 0, 1, 4);
layout->setRowStretch(6, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_lightness_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapPUSequentialLightnessWidget::~ColorMapPUSequentialLightnessWidget()
{
}
void ColorMapPUSequentialLightnessWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_lightness_range_changer->setValue(ColorMap::PUSequentialLightnessDefaultLightnessRange);
_saturation_range_changer->setValue(ColorMap::PUSequentialLightnessDefaultSaturationRange);
_saturation_changer->setValue(ColorMap::PUSequentialLightnessDefaultSaturation);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::PUSequentialLightnessDefaultHue));
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapPUSequentialLightnessWidget::colorMap(int* clipped) const
{
int n;
float lr, sr, s, h;
parameters(n, lr, sr, s, h);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::PUSequentialLightness(n, colormap.data(), lr, sr, s, h);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapPUSequentialLightnessWidget::reference() const
{
return pu_reference;
}
void ColorMapPUSequentialLightnessWidget::parameters(int& n, float& lightness_range, float& saturation_range, float& saturation, float& hue) const
{
n = _n_spinbox->value();
lightness_range = _lightness_range_changer->value();
saturation_range = _saturation_range_changer->value();
saturation = _saturation_changer->value();
hue = qDegreesToRadians(_hue_changer->value());
}
void ColorMapPUSequentialLightnessWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapPUSequentialSaturationWidget */
ColorMapPUSequentialSaturationWidget::ColorMapPUSequentialSaturationWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* saturation_range_label = new QLabel("Saturation range:");
layout->addWidget(saturation_range_label, 2, 0);
_saturation_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_saturation_range_changer->slider, 2, 1, 1, 2);
layout->addWidget(_saturation_range_changer->spinbox, 2, 3);
QLabel* lightness_label = new QLabel("Lightness:");
layout->addWidget(lightness_label, 3, 0);
_lightness_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_lightness_changer->slider, 3, 1, 1, 2);
layout->addWidget(_lightness_changer->spinbox, 3, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 4, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0, 1, 0.01f);
layout->addWidget(_saturation_changer->slider, 4, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 4, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 5, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 5, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 5, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 6, 0, 1, 4);
layout->setRowStretch(6, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_saturation_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_lightness_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapPUSequentialSaturationWidget::~ColorMapPUSequentialSaturationWidget()
{
}
void ColorMapPUSequentialSaturationWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_saturation_range_changer->setValue(ColorMap::PUSequentialSaturationDefaultSaturationRange);
_lightness_changer->setValue(ColorMap::PUSequentialSaturationDefaultLightness);
_saturation_changer->setValue(ColorMap::PUSequentialSaturationDefaultSaturation);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::PUSequentialSaturationDefaultHue));
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapPUSequentialSaturationWidget::colorMap(int* clipped) const
{
int n;
float sr, l, s, h;
parameters(n, sr, l, s, h);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::PUSequentialSaturation(n, colormap.data(), sr, l, s, h);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapPUSequentialSaturationWidget::reference() const
{
return pu_reference;
}
void ColorMapPUSequentialSaturationWidget::parameters(int& n, float& saturation_range, float& lightness, float& saturation, float& hue) const
{
n = _n_spinbox->value();
saturation_range = _saturation_range_changer->value();
lightness = _lightness_changer->value();
saturation = _saturation_changer->value();
hue = qDegreesToRadians(_hue_changer->value());
}
void ColorMapPUSequentialSaturationWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapPUSequentialRainbowWidget */
ColorMapPUSequentialRainbowWidget::ColorMapPUSequentialRainbowWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 1024);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* lightness_range_label = new QLabel("Lightness range:");
layout->addWidget(lightness_range_label, 2, 0);
_lightness_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_lightness_range_changer->slider, 2, 1, 1, 2);
layout->addWidget(_lightness_range_changer->spinbox, 2, 3);
QLabel* saturation_range_label = new QLabel("Saturation range:");
layout->addWidget(saturation_range_label, 3, 0);
_saturation_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_saturation_range_changer->slider, 3, 1, 1, 2);
layout->addWidget(_saturation_range_changer->spinbox, 3, 3);
QLabel* hue_label = new QLabel("Hue:");
layout->addWidget(hue_label, 4, 0);
_hue_changer = new ColorMapCombinedSliderSpinBox(0, 360, 1);
layout->addWidget(_hue_changer->slider, 4, 1, 1, 2);
layout->addWidget(_hue_changer->spinbox, 4, 3);
QLabel* rotations_label = new QLabel("Rotations:");
layout->addWidget(rotations_label, 5, 0);
_rotations_changer = new ColorMapCombinedSliderSpinBox(-5.0f, +5.0f, 0.1f);
layout->addWidget(_rotations_changer->slider, 5, 1, 1, 2);
layout->addWidget(_rotations_changer->spinbox, 5, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 6, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0.0f, 5.0f, 0.1f);
layout->addWidget(_saturation_changer->slider, 6, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 6, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 7, 0, 1, 4);
layout->setRowStretch(7, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_lightness_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_hue_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_rotations_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapPUSequentialRainbowWidget::~ColorMapPUSequentialRainbowWidget()
{
}
void ColorMapPUSequentialRainbowWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_lightness_range_changer->setValue(ColorMap::PUSequentialRainbowDefaultLightnessRange);
_saturation_range_changer->setValue(ColorMap::PUSequentialRainbowDefaultSaturationRange);
_hue_changer->setValue(qRadiansToDegrees(ColorMap::PUSequentialRainbowDefaultHue));
_rotations_changer->setValue(ColorMap::PUSequentialRainbowDefaultRotations);
_saturation_changer->setValue(ColorMap::PUSequentialRainbowDefaultSaturation);
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapPUSequentialRainbowWidget::colorMap(int* clipped) const
{
int n;
float lr, sr, h, r, s;
parameters(n, lr, sr, h, r, s);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::PUSequentialRainbow(n, colormap.data(), lr, sr, h, r, s);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapPUSequentialRainbowWidget::reference() const
{
return pu_reference;
}
void ColorMapPUSequentialRainbowWidget::parameters(int& n,
float& lightness_range, float& saturation_range,
float& hue, float& rotations, float& saturation) const
{
n = _n_spinbox->value();
lightness_range = _lightness_range_changer->value();
saturation_range = _saturation_range_changer->value();
hue = qDegreesToRadians(_hue_changer->value());
rotations = _rotations_changer->value();
saturation = _saturation_changer->value();
}
void ColorMapPUSequentialRainbowWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapPUSequentialBlackBodyWidget */
ColorMapPUSequentialBlackBodyWidget::ColorMapPUSequentialBlackBodyWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 10240);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* temperature_label = new QLabel("Temperature (K):");
layout->addWidget(temperature_label, 2, 0);
_temperature_changer = new ColorMapCombinedSliderSpinBox(250.0f, 20000.0f, 100.0f);
layout->addWidget(_temperature_changer->slider, 2, 1, 1, 2);
layout->addWidget(_temperature_changer->spinbox, 2, 3);
QLabel* temperature_range_label = new QLabel("Range (K):");
layout->addWidget(temperature_range_label, 3, 0);
_temperature_range_changer = new ColorMapCombinedSliderSpinBox(0.0f, 20000.0f, 100.0f);
layout->addWidget(_temperature_range_changer->slider, 3, 1, 1, 2);
layout->addWidget(_temperature_range_changer->spinbox, 3, 3);
QLabel* lightness_range_label = new QLabel("Lightness range:");
layout->addWidget(lightness_range_label, 4, 0);
_lightness_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_lightness_range_changer->slider, 4, 1, 1, 2);
layout->addWidget(_lightness_range_changer->spinbox, 4, 3);
QLabel* saturation_range_label = new QLabel("Saturation range:");
layout->addWidget(saturation_range_label, 5, 0);
_saturation_range_changer = new ColorMapCombinedSliderSpinBox(0.7f, 1.0f, 0.01f);
layout->addWidget(_saturation_range_changer->slider, 5, 1, 1, 2);
layout->addWidget(_saturation_range_changer->spinbox, 5, 3);
QLabel* saturation_label = new QLabel("Saturation:");
layout->addWidget(saturation_label, 6, 0);
_saturation_changer = new ColorMapCombinedSliderSpinBox(0.0f, 5.0f, 0.1f);
layout->addWidget(_saturation_changer->slider, 6, 1, 1, 2);
layout->addWidget(_saturation_changer->spinbox, 6, 3);
layout->setColumnStretch(1, 1);
layout->addItem(new QSpacerItem(0, 0), 7, 0, 1, 4);
layout->setRowStretch(7, 1);
setLayout(layout);
connect(_n_spinbox, SIGNAL(valueChanged(int)), this, SLOT(update()));
connect(_temperature_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_temperature_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_lightness_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_range_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
connect(_saturation_changer, SIGNAL(valueChanged(float)), this, SLOT(update()));
reset();
}
ColorMapPUSequentialBlackBodyWidget::~ColorMapPUSequentialBlackBodyWidget()
{
}
void ColorMapPUSequentialBlackBodyWidget::reset()
{
_update_lock = true;
_n_spinbox->setValue(256);
_temperature_changer->setValue(ColorMap::PUSequentialBlackBodyDefaultTemperature);
_temperature_range_changer->setValue(ColorMap::PUSequentialBlackBodyDefaultTemperatureRange);
_lightness_range_changer->setValue(ColorMap::PUSequentialBlackBodyDefaultLightnessRange);
_saturation_range_changer->setValue(ColorMap::PUSequentialBlackBodyDefaultSaturationRange);
_saturation_changer->setValue(ColorMap::PUSequentialBlackBodyDefaultSaturation);
_update_lock = false;
update();
}
QVector<unsigned char> ColorMapPUSequentialBlackBodyWidget::colorMap(int* clipped) const
{
int n;
float t, tr, lr, sr, s;
parameters(n, t, tr, lr, sr, s);
QVector<unsigned char> colormap(3 * n);
int cl = ColorMap::PUSequentialBlackBody(n, colormap.data(), t, tr, lr, sr, s);
if (clipped)
*clipped = cl;
return colormap;
}
QString ColorMapPUSequentialBlackBodyWidget::reference() const
{
return pu_reference;
}
void ColorMapPUSequentialBlackBodyWidget::parameters(int& n,
float& temperature, float& temperature_range,
float& lightness_range, float& saturation_range,
float& saturation) const
{
n = _n_spinbox->value();
temperature = _temperature_changer->value();
temperature_range = _temperature_range_changer->value();
lightness_range = _lightness_range_changer->value();
saturation_range = _saturation_range_changer->value();
saturation = _saturation_changer->value();
}
void ColorMapPUSequentialBlackBodyWidget::update()
{
if (!_update_lock)
emit colorMapChanged();
}
/* ColorMapPUSequentialMultiHueWidget */
static float colorToHue(QColor color)
{
return color.hsvHueF() * 2.0f * static_cast<float>(M_PI);
}
static QColor hueToColor(float hue)
{
return QColor::fromHsvF(hue / (2.0f * static_cast<float>(M_PI)), 1.0f, 1.0f);
}
ColorMapPUSequentialMultiHueWidget::ColorMapPUSequentialMultiHueWidget() :
_update_lock(false)
{
QGridLayout *layout = new QGridLayout;
QLabel* n_label = new QLabel("Colors:");
layout->addWidget(n_label, 1, 0);
_n_spinbox = new QSpinBox();
_n_spinbox->setRange(2, 10240);
_n_spinbox->setSingleStep(1);
layout->addWidget(_n_spinbox, 1, 1, 1, 3);
QLabel* hue_list_label = new QLabel("Hues:");
layout->addWidget(hue_list_label, 2, 0);
_hue_list_widget = new QListWidget;
_hue_list_widget->setFlow(QListView::LeftToRight);
_hue_list_widget->setMaximumHeight(2 * _n_spinbox->sizeHint().height());
layout->addWidget(_hue_list_widget, 2, 1, 1, 3);
QGridLayout *hue_layout = new QGridLayout;
_hue_button_color = hueToColor(0.0f);
_hue_button = new QPushButton;
_hue_button->setFixedSize(QSize(_hue_button->sizeHint().width() / 2, _hue_button->sizeHint().height()));
updateHueButton();
connect(_hue_button, SIGNAL(clicked()), this, SLOT(hueButtonClicked()));
hue_layout->addWidget(_hue_button, 0, 0);
_pos_spinbox = new QDoubleSpinBox;
_pos_spinbox->setRange(0.0f, 1.0f);
_pos_spinbox->setSingleStep(0.01f);
_pos_spinbox->setDecimals(2);
hue_layout->addWidget(_pos_spinbox, 0, 1);
QPushButton* add_hue_btn = new QPushButton("Add");
connect(add_hue_btn, SIGNAL(clicked()), this, SLOT(addHue()));
hue_layout->addWidget(add_hue_btn, 0, 2);
hue_layout->addItem(new QSpacerItem(0, 0), 0, 3);
QPushButton* remove_hue_btn = new QPushButton("Remove");