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Add spinbox control to threshold slider

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WarmUpTill 2022-04-27 18:21:39 +02:00 committed by WarmUpTill
parent b5eb0b3f3e
commit d6ef69a3d4
2 changed files with 30 additions and 26 deletions
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48
src/external-macro-modules/opencv/threshold-slider.cpp
View File

@ -3,22 +3,26 @@
ThresholdSlider::ThresholdSlider(double min, double max, const QString &label,
const QString &description, QWidget *parent)
: QWidget(parent)
: QWidget(parent),
_spinBox(new QDoubleSpinBox()),
_slider(new QSlider())
{
_slider = new QSlider();
_slider->setOrientation(Qt::Horizontal);
_slider->setRange(min * _scale, max * _scale);
_value = new QLabel();
QString labelText = label + QString("0.");
for (int i = 0; i < _precision; i++) {
labelText.append(QString("0"));
}
_value->setText(labelText);
_spinBox->setMinimum(min);
_spinBox->setMaximum(max);
_spinBox->setDecimals(5);
connect(_slider, SIGNAL(valueChanged(int)), this,
SLOT(NotifyValueChanged(int)));
SLOT(SliderValueChanged(int)));
connect(_spinBox, SIGNAL(valueChanged(double)), this,
SLOT(SpinBoxValueChanged(double)));
QVBoxLayout *mainLayout = new QVBoxLayout();
QHBoxLayout *sliderLayout = new QHBoxLayout();
sliderLayout->addWidget(_value);
if (!label.isEmpty()) {
sliderLayout->addWidget(new QLabel(label));
}
sliderLayout->addWidget(_spinBox);
sliderLayout->addWidget(_slider);
mainLayout->addLayout(sliderLayout);
if (!description.isEmpty()) {
@ -30,21 +34,21 @@ ThresholdSlider::ThresholdSlider(double min, double max, const QString &label,
void ThresholdSlider::SetDoubleValue(double value)
{
const QSignalBlocker b1(_slider);
const QSignalBlocker b2(_spinBox);
_slider->setValue(value * _scale);
SetDoubleValueText(value);
_spinBox->setValue(value);
}
void ThresholdSlider::NotifyValueChanged(int value)
void ThresholdSlider::SpinBoxValueChanged(double value)
{
int sliderPos = value * _scale;
_slider->setValue(sliderPos);
emit DoubleValueChanged(value);
}
void ThresholdSlider::SliderValueChanged(int value)
{
double doubleValue = value / _scale;
SetDoubleValueText(doubleValue);
emit DoubleValueChanged(doubleValue);
}
void ThresholdSlider::SetDoubleValueText(double value)
{
QString labelText = _value->text();
labelText.chop(_precision + 2); // 2 for the part left of the "."
labelText.append(QString::number(value, 'f', _precision));
_value->setText(labelText);
_spinBox->setValue(doubleValue);
}

8
src/external-macro-modules/opencv/threshold-slider.hpp
View File

@ -2,6 +2,7 @@
#include <QWidget>
#include <QSlider>
#include <QLabel>
#include <QDoubleSpinBox>
class ThresholdSlider : public QWidget {
Q_OBJECT
@ -12,14 +13,13 @@ public:
const QString &description = "", QWidget *parent = 0);
void SetDoubleValue(double);
public slots:
void NotifyValueChanged(int value);
void SliderValueChanged(int value);
void SpinBoxValueChanged(double value);
signals:
void DoubleValueChanged(double value);
private:
void SetDoubleValueText(double);
QLabel *_value;
QDoubleSpinBox *_spinBox;
QSlider *_slider;
double _scale = 100.0;
int _precision = 2;
};