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/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux
*
* Tulip is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Tulip 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 <QColorDialog>
#include <QPainter>
#include <QLinearGradient>
#include "ScatterPlotCorrelCoeffSelectorOptionsWidget.h"
#include "ui_ScatterPlotCorrelCoeffSelectorOptionsWidget.h"
namespace tlp {
ScatterPlotCorrelCoeffSelectorOptionsWidget::ScatterPlotCorrelCoeffSelectorOptionsWidget(QWidget *parent) : QWidget(parent),_ui(new Ui::ScatterPlotCorrelCoeffSelectorOptionsWidgetData) {
_ui->setupUi(this);
setButtonBackgroundColor(_ui->minusOneColorButton, Color(0,0,255,150));
setButtonBackgroundColor(_ui->zeroColorButton, Color(255,0,0,150));
setButtonBackgroundColor(_ui->oneColorButton, Color(0,255,0,150));
updateColorScale();
connect(_ui->minusOneColorButton, SIGNAL(clicked()), this, SLOT(pressMinusOneColorButton()));
connect(_ui->zeroColorButton, SIGNAL(clicked()), this, SLOT(pressZeroColorButton()));
connect(_ui->oneColorButton, SIGNAL(clicked()), this, SLOT(pressOneColorButton()));
}
ScatterPlotCorrelCoeffSelectorOptionsWidget::~ScatterPlotCorrelCoeffSelectorOptionsWidget() {
delete _ui;
}
Color ScatterPlotCorrelCoeffSelectorOptionsWidget::getButtonColor(QPushButton *button) const {
QString buttonStyleSheet = button->styleSheet();
int pos = buttonStyleSheet.indexOf("rgba(") + 5;
QString backgroundColorCode = buttonStyleSheet.mid(pos, buttonStyleSheet.length() - pos - 2);
bool ok;
QStringList rgbaStr = backgroundColorCode.split(",");
return Color(rgbaStr.at(0).toInt(&ok), rgbaStr.at(1).toInt(&ok), rgbaStr.at(2).toInt(&ok), rgbaStr.at(3).toInt(&ok));
}
Color ScatterPlotCorrelCoeffSelectorOptionsWidget::getMinusOneColor() const {
return getButtonColor(_ui->minusOneColorButton);
}
Color ScatterPlotCorrelCoeffSelectorOptionsWidget::getZeroColor() const {
return getButtonColor(_ui->zeroColorButton);
}
Color ScatterPlotCorrelCoeffSelectorOptionsWidget::getOneColor() const {
return getButtonColor(_ui->oneColorButton);
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::setButtonBackgroundColor(QPushButton *button, const Color &color) {
QString colorStr = "rgba(";
QString str;
str.setNum(color.getR());
str.append(",");
colorStr.append(str);
str.setNum(color.getG());
str.append(",");
colorStr.append(str);
str.setNum(color.getB());
str.append(",");
colorStr.append(str);
str.setNum(color.getA());
str.append(")");
colorStr.append(str);
button->setStyleSheet("QPushButton { background-color: "+colorStr +"}");
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::pressMinusOneColorButton() {
changeButtonBackgroundColor(_ui->minusOneColorButton);
updateColorScale();
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::pressZeroColorButton() {
changeButtonBackgroundColor(_ui->zeroColorButton);
updateColorScale();
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::pressOneColorButton() {
changeButtonBackgroundColor(_ui->oneColorButton);
updateColorScale();
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::changeButtonBackgroundColor(QPushButton *button) {
QColor currentButtonColor = button->palette().color(QPalette::Button);
#if (QT_VERSION >= QT_VERSION_CHECK(4, 5, 0))
QColor newColor = QColorDialog::getColor(currentButtonColor, this, "Select Color", QColorDialog::ShowAlphaChannel);
if (newColor.isValid()) {
setButtonBackgroundColor(button, Color(newColor.red(), newColor.green(), newColor.blue(), newColor.alpha()));
}
#else
bool ok = true;
QRgb newColor = QColorDialog::getRgba(qRgba(currentButtonColor.red(), currentButtonColor.green(), currentButtonColor.blue(), currentButtonColor.alpha()), &ok, this);
if (ok) {
setButtonBackgroundColor(button, Color(qRed(newColor), qGreen(newColor), qBlue(newColor), qAlpha(newColor)));
}
#endif
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::updateColorScale() {
QPixmap pixmap(_ui->colorScaleLabel->width(), _ui->colorScaleLabel->height());
pixmap.fill(Qt::transparent);
QPainter painter;
painter.begin(&pixmap);
Color minusOneColor = getMinusOneColor();
Color zeroColor = getZeroColor();
Color oneColor = getOneColor();
QLinearGradient qLinearGradient(0, _ui->colorScaleLabel->height() / 2, _ui->colorScaleLabel->width()-1, _ui->colorScaleLabel->height() / 2);
qLinearGradient.setColorAt(0, QColor(minusOneColor.getR(), minusOneColor.getG(), minusOneColor.getB(), minusOneColor.getA()));
qLinearGradient.setColorAt(1./2., QColor(zeroColor.getR(), zeroColor.getG(), zeroColor.getB(), zeroColor.getA()));
qLinearGradient.setColorAt(1, QColor(oneColor.getR(), oneColor.getG(), oneColor.getB(), oneColor.getA()));
painter.fillRect(0, 0, _ui->colorScaleLabel->width(), _ui->colorScaleLabel->height(), qLinearGradient);
painter.end();
_ui->colorScaleLabel->setPixmap(pixmap.scaled(_ui->colorScaleLabel->width(), _ui->colorScaleLabel->height()));
}
void ScatterPlotCorrelCoeffSelectorOptionsWidget::showEvent(QShowEvent*) {
updateColorScale();
}
}
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