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#include "AbsoluteSlider.hpp"
#include <QPainter>
#include "moc_AbsoluteSlider.cpp"
AbsoluteSlider::AbsoluteSlider(QWidget *parent) : SliderIgnoreScroll(parent)
{
installEventFilter(this);
setMouseTracking(true);
tickColor.setRgb(0x5b, 0x62, 0x73);
}
AbsoluteSlider::AbsoluteSlider(Qt::Orientation orientation, QWidget *parent) : SliderIgnoreScroll(orientation, parent)
{
installEventFilter(this);
setMouseTracking(true);
tickColor.setRgb(0x5b, 0x62, 0x73);
}
void AbsoluteSlider::mousePressEvent(QMouseEvent *event)
{
dragging = (event->buttons() & Qt::LeftButton || event->buttons() & Qt::MiddleButton);
if (dragging) {
setSliderDown(true);
setValue(posToRangeValue(event));
emit AbsoluteSlider::sliderMoved(posToRangeValue(event));
}
event->accept();
}
void AbsoluteSlider::mouseReleaseEvent(QMouseEvent *event)
{
dragging = false;
setSliderDown(false);
event->accept();
}
void AbsoluteSlider::mouseMoveEvent(QMouseEvent *event)
{
int val = posToRangeValue(event);
if (val > maximum())
val = maximum();
else if (val < minimum())
val = minimum();
emit absoluteSliderHovered(val);
if (dragging) {
setValue(posToRangeValue(event));
emit AbsoluteSlider::sliderMoved(posToRangeValue(event));
}
QSlider::mouseMoveEvent(event);
event->accept();
}
bool AbsoluteSlider::eventFilter(QObject *obj, QEvent *event)
{
if (event->type() == QEvent::KeyPress) {
QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
if (keyEvent->key() == Qt::Key_Up || keyEvent->key() == Qt::Key_Down) {
return true;
}
}
return QSlider::eventFilter(obj, event);
}
int AbsoluteSlider::posToRangeValue(QMouseEvent *event)
{
QStyleOptionSlider opt;
initStyleOption(&opt);
int pos;
int sliderMin;
int sliderMax;
int handleLength;
const QRect groove = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, this);
const QRect handle = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
if (orientation() == Qt::Horizontal) {
pos = event->pos().x();
handleLength = handle.width();
sliderMin = groove.left() + (handleLength / 2);
sliderMax = groove.right() - (handleLength / 2) + 1;
} else {
pos = event->pos().y();
handleLength = handle.height();
sliderMin = groove.top() + (handleLength / 2);
sliderMax = groove.bottom() - (handleLength / 2) + 1;
}
int sliderValue = style()->sliderValueFromPosition(minimum(), maximum(), pos - sliderMin, sliderMax - sliderMin,
opt.upsideDown);
return sliderValue;
}
bool AbsoluteSlider::getDisplayTicks() const
{
return displayTicks;
}
void AbsoluteSlider::setDisplayTicks(bool display)
{
displayTicks = display;
}
QColor AbsoluteSlider::getTickColor() const
{
return tickColor;
}
void AbsoluteSlider::setTickColor(QColor c)
{
tickColor = std::move(c);
}
void AbsoluteSlider::paintEvent(QPaintEvent *event)
{
if (!getDisplayTicks()) {
QSlider::paintEvent(event);
return;
}
QPainter painter(this);
QStyleOptionSlider opt;
initStyleOption(&opt);
QRect groove = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, this);
QRect handle = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
const bool isHorizontal = orientation() == Qt::Horizontal;
const int sliderLength = isHorizontal ? groove.width() - handle.width() : groove.height() - handle.height();
const int handleSize = isHorizontal ? handle.width() : handle.height();
const int grooveSize = isHorizontal ? groove.height() : groove.width();
const int grooveStart = isHorizontal ? groove.left() : groove.top();
const int tickLinePos = isHorizontal ? groove.center().y() : groove.center().x();
const int tickLength = std::max((int)(grooveSize * 1.5) + grooveSize, 8 + grooveSize);
const int tickLineStart = tickLinePos - (tickLength / 2) + 1;
for (double offset = minimum(); offset <= maximum(); offset += singleStep()) {
double tickPercent = (offset - minimum()) / (maximum() - minimum());
const int tickLineOffset = grooveStart + std::floor(sliderLength * tickPercent) + (handleSize / 2);
const int xPos = isHorizontal ? tickLineOffset : tickLineStart;
const int yPos = isHorizontal ? tickLineStart : tickLineOffset;
const int tickWidth = isHorizontal ? 1 : tickLength;
const int tickHeight = isHorizontal ? tickLength : 1;
painter.fillRect(xPos, yPos, tickWidth, tickHeight, tickColor);
}
QSlider::paintEvent(event);
}
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