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/*****************************************************************************
* $CAMITK_LICENCE_BEGIN$
*
* CamiTK - Computer Assisted Medical Intervention ToolKit
* (c) 2001-2025 Univ. Grenoble Alpes, CNRS, Grenoble INP - UGA, TIMC, 38000 Grenoble, France
*
* Visit http://camitk.imag.fr for more information
*
* This file is part of CamiTK.
*
* CamiTK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* CamiTK 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 Lesser General Public License version 3 for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with CamiTK. If not, see <http://www.gnu.org/licenses/>.
*
* $CAMITK_LICENCE_END$
****************************************************************************/
// -- Core stuff
#include "SliderTextWidget.h"
// -- QT stuff
#include <QVBoxLayout>
#include <QHBoxLayout>
namespace camitk {
//------------ Constructor ------------------------
SliderTextWidget::SliderTextWidget(QWidget* parent, Qt::WindowFlags fl) : QWidget(parent, fl) {
auto* vLayout = new QVBoxLayout(this);
// the first line has 2 widgets -> a HBoxLayout is needed!
auto* hLayout = new QHBoxLayout();
vLayout->addLayout(hLayout);
label = new QLabel;
hLayout->addWidget(label);
lineEdit = new QLineEdit;
hLayout->addWidget(lineEdit);
slider = new QSlider(Qt::Horizontal);
vLayout->addWidget(slider);
// connections
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(valueChanged(int)));
connect(lineEdit, SIGNAL(textChanged(QString)), this, SLOT(textModified(QString)));
connect(lineEdit, SIGNAL(returnPressed()), this, SLOT(returnPressed()));
// initialize with parameters given in uic_SliderTextWidget
setName(objectName());
value = 50.0;
min = 0.0;
max = 100.0;
QPalette p = lineEdit->palette();
bgColor = p.color(lineEdit->backgroundRole());
// block the signals, only if not already blocked to set the slider range
bool alreadyBlocked = signalsBlocked();
if (!alreadyBlocked) {
blockSignals(true);
}
slider->setRange(0, 100);
slider->setSingleStep(1);
slider->setPageStep(10);
if (!alreadyBlocked) {
blockSignals(false);
}
updateLineEdit();
updateSlider();
}
//------------ Destructor ------------------------
SliderTextWidget::~SliderTextWidget() {
// no need to delete children widgets, Qt does it all for us
}
//------------ setNamethis ------------------------
void SliderTextWidget::setName(const QString& name) {
label->setText(name);
}
//------------ setValue ------------------------
void SliderTextWidget::setValue(double val, bool emitValueChanged) {
value = val;
updateLineEdit();
updateSlider();
if (emitValueChanged) {
emit valueChanged();
}
}
//------------ init ------------------------
void SliderTextWidget::init(double min, double max, double value) {
this->min = min;
this->max = max;
this->value = value;
updateSlider();
updateLineEdit();
}
//------------ valueChanged ------------------------
void SliderTextWidget::valueChanged(int val) {
value = sliderToValue(val);
updateLineEdit();
emit valueChanged();
}
//------------ textModified ------------------------
void SliderTextWidget::textModified(QString) {
QPalette p;
p.setColor(lineEdit->backgroundRole(), QColor(255, 220, 168));
lineEdit->setPalette(p);
}
//------------ returnPressed ------------------------
void SliderTextWidget::returnPressed() {
QPalette p;
p.setColor(lineEdit->backgroundRole(), bgColor);
lineEdit->setPalette(p);
value = lineEdit->text().toDouble();
// update min/max if needed
if (value < min) {
min = value;
}
if (value > max) {
max = value;
}
updateSlider();
emit valueChanged();
}
//------------ updateLineEdit ------------------------
void SliderTextWidget::updateLineEdit() {
// update line edit text
// block the signals, only if not already blocked
bool alreadyBlocked = lineEdit->signalsBlocked();
if (!alreadyBlocked) {
lineEdit->blockSignals(true);
}
lineEdit->setText(QString::number(value));
if (!alreadyBlocked) {
lineEdit->blockSignals(false);
}
}
//------------ updateSlider ------------------------
void SliderTextWidget::updateSlider() {
int v = valueToSlider(value);
bool alreadyBlocked = slider->signalsBlocked();
if (!alreadyBlocked) {
slider->blockSignals(true);
}
// update slider value
slider->setValue(v);
if (!alreadyBlocked) {
slider->blockSignals(false);
}
}
//------------ sliderToValue ------------------------
double SliderTextWidget::sliderToValue(const int s) {
return (min + double(s) * (max - min) / 100.0);
}
//------------ doubleToSlider ------------------------
int SliderTextWidget::valueToSlider(const double v) {
return (int) 100.0 * (v - min) / (max - min);
}
}
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