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Add STFSlider ability to be vertical

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This commit is contained in:
Dušan Poizl
2025-04-10 23:09:59 +02:00
parent e7acbca01e
commit 2415717ce0
3 changed files with 93 additions and 28 deletions
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stfslider.cpp
+78 -12
View File
@@ -12,7 +12,7 @@ static float clamp(float x)
STFSlider::STFSlider(const QColor &color, QWidget *parent) : QWidget(parent)
{
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
setMinimumWidth(100);
setMouseTracking(true);
@@ -64,12 +64,51 @@ void STFSlider::setMTFParams(float low, float mid, float high)
update();
}
void STFSlider::orientationChanged(Qt::Orientations orientation)
{
m_orientation = orientation;
if(m_orientation == Qt::Horizontal)
{
if(m_color == Qt::white)
{
setMaximumSize(QWIDGETSIZE_MAX, 16);
setMinimumSize(16, 16);
}
else
{
setMaximumSize(QWIDGETSIZE_MAX, 10);
setMinimumSize(10, 10);
}
}
else
{
if(m_color == Qt::white)
{
setMaximumSize(16, QWIDGETSIZE_MAX);
setMinimumSize(16, 16);
}
else
{
setMaximumSize(10, QWIDGETSIZE_MAX);
setMinimumSize(10, 10);
}
}
}
void STFSlider::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
QRect rect = event->rect();
qreal w = rect.width() - 1;
qreal h = rect.height();
if(m_orientation == Qt::Vertical)
{
rect = rect.transposed();
painter.rotate(90);
w = rect.width() - 1;
h = rect.height();
painter.translate(0, -h);
}
QLinearGradient gradient(rect.topLeft(), rect.topRight());
gradient.setColorAt(0, Qt::black);
for(int i=1; i<=32; i++)
@@ -93,6 +132,11 @@ void STFSlider::paintEvent(QPaintEvent *event)
{
painter.setPen(p < m_threshold ? Qt::white : Qt::black);
painter.resetTransform();
if(m_orientation == Qt::Vertical)
{
painter.rotate(90);
painter.translate(0, -h);
}
painter.translate(w*p, 0);
painter.drawPath(tick);
};
@@ -105,15 +149,26 @@ void STFSlider::paintEvent(QPaintEvent *event)
void STFSlider::mouseMoveEvent(QMouseEvent *event)
{
const qreal x = event->position().x();
if(std::abs(m_blackPoint*width() - x) < 5 ||
std::abs((m_blackPoint + (m_whitePoint - m_blackPoint) * m_midPoint)*width() - x) < 5 ||
std::abs(m_whitePoint*width() - x) < 5)
setCursor(Qt::SplitHCursor);
qreal x,w;
if(m_orientation == Qt::Horizontal)
{
x = event->position().x();
w = width();
}
else
{
x = event->position().y();
w = height();
}
if(std::abs(m_blackPoint*w - x) < 5 ||
std::abs((m_blackPoint + (m_whitePoint - m_blackPoint) * m_midPoint)*w - x) < 5 ||
std::abs(m_whitePoint*w - x) < 5)
setCursor(m_orientation == Qt::Horizontal ? Qt::SplitHCursor : Qt::SplitVCursor);
else
unsetCursor();
qreal xw = x/width();
qreal xw = x/w;
if(event->modifiers() & Qt::ShiftModifier && !m_fineTune)
{
m_fineTune = true;
@@ -154,18 +209,29 @@ void STFSlider::mouseMoveEvent(QMouseEvent *event)
void STFSlider::mousePressEvent(QMouseEvent *event)
{
const qreal x = event->position().x();
qreal x,w;
if(m_orientation == Qt::Horizontal)
{
x = event->position().x();
w = width();
}
else
{
x = event->position().y();
w = height();
}
if(event->modifiers() & Qt::ShiftModifier)
{
m_fineTune = true;
m_fineTuneX = x/width();
m_fineTuneX = x/w;
}
if(std::abs((m_blackPoint + (m_whitePoint - m_blackPoint) * m_midPoint)*width() - x) < 5)
if(std::abs((m_blackPoint + (m_whitePoint - m_blackPoint) * m_midPoint)*w - x) < 5)
m_grabbed = 1;
else if(std::abs(m_blackPoint*width() - x) < 5)
else if(std::abs(m_blackPoint*w - x) < 5)
m_grabbed = 0;
else if(std::abs(m_whitePoint*width() - x) < 5)
else if(std::abs(m_whitePoint*w - x) < 5)
m_grabbed = 2;
else
m_grabbed = -1;
stfslider.h
+3
View File
@@ -15,12 +15,15 @@ class STFSlider : public QWidget
float m_fineTuneX;
QColor m_color;
float m_threshold;
Qt::Orientations m_orientation = Qt::Horizontal;
public:
explicit STFSlider(const QColor &color = Qt::white, QWidget *parent = nullptr);
float blackPoint() const;
float midPoint() const;
float whitePoint() const;
void setMTFParams(float low, float mid, float high);
public slots:
void orientationChanged(Qt::Orientations orientation);
signals:
void paramChanged(float blackPoint, float midPoint, float whitePoint);
protected:
stretchtoolbar.cpp
+12 -16
View File
@@ -6,17 +6,6 @@
#include <QStyle>
#include "imageringlist.h"
const float BLACK_POINT_SIGMA = -2.8f;
const float MAD_TO_SIGMA = 1.4826f;
const float TARGET_BACKGROUND = 0.25f;
float MTF(float x, float m)
{
if(x < 0)return 0;
if(x > 1)return 1;
return ((m - 1) * x) / ((2 * m - 1) * x - m);
}
StretchToolbar::StretchToolbar(QWidget *parent) : QToolBar(tr("Stretch toolbar"), parent)
{
setObjectName("stretchtoolbar");
@@ -24,16 +13,23 @@ StretchToolbar::StretchToolbar(QWidget *parent) : QToolBar(tr("Stretch toolbar")
QVBoxLayout *vbox1 = new QVBoxLayout(lum);
m_stfSlider = new STFSlider(Qt::white, this);
vbox1->addWidget(m_stfSlider);
connect(this, &StretchToolbar::orientationChanged, m_stfSlider, &STFSlider::orientationChanged);
m_stfSliderR = new STFSlider(Qt::red, this);
m_stfSliderG = new STFSlider(Qt::green, this);
m_stfSliderB = new STFSlider(Qt::blue, this);
QWidget *rgb = new QWidget(this);
QVBoxLayout *vbox2 = new QVBoxLayout(rgb);
vbox2->setSpacing(0);
vbox2->addWidget(m_stfSliderR);
vbox2->addWidget(m_stfSliderG);
vbox2->addWidget(m_stfSliderB);
QBoxLayout *box2 = new QBoxLayout(orientation() == Qt::Horizontal ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight, rgb);
box2->setSpacing(0);
box2->addWidget(m_stfSliderR);
box2->addWidget(m_stfSliderG);
box2->addWidget(m_stfSliderB);
connect(this, &StretchToolbar::orientationChanged, m_stfSliderR, &STFSlider::orientationChanged);
connect(this, &StretchToolbar::orientationChanged, m_stfSliderG, &STFSlider::orientationChanged);
connect(this, &StretchToolbar::orientationChanged, m_stfSliderB, &STFSlider::orientationChanged);
connect(this, &StretchToolbar::orientationChanged, [box2](Qt::Orientations orientation){
box2->setDirection(orientation == Qt::Horizontal ? QBoxLayout::TopToBottom : QBoxLayout::LeftToRight);
});
m_stack = new QStackedWidget(this);
m_stack->addWidget(lum);