feat: 添加ElaWidgetTool库
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sleepwithoutbz
192
ElaWidgetTools/DeveloperComponents/ElaScrollBarStyle.cpp
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192
ElaWidgetTools/DeveloperComponents/ElaScrollBarStyle.cpp
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#include "ElaScrollBarStyle.h"
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#include <QPainter>
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#include <QPainterPath>
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#include <QPropertyAnimation>
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#include <QStyleOptionSlider>
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#include <QtMath>
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#include "ElaScrollBar.h"
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#include "ElaTheme.h"
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ElaScrollBarStyle::ElaScrollBarStyle(QStyle* style)
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{
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_pIsExpand = false;
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_pOpacity = 0;
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_pScrollBar = nullptr;
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_pSliderExtent = 2.4;
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_themeMode = eTheme->getThemeMode();
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connect(eTheme, &ElaTheme::themeModeChanged, this, [=](ElaThemeType::ThemeMode themeMode) { _themeMode = themeMode; });
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}
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ElaScrollBarStyle::~ElaScrollBarStyle()
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{
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}
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void ElaScrollBarStyle::drawComplexControl(ComplexControl control, const QStyleOptionComplex* option, QPainter* painter, const QWidget* widget) const
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{
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//QStyle::SC_ScrollBarGroove QStyle::SC_ScrollBarAddLine QStyle::SC_ScrollBarSubLine上指示器
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switch (control)
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{
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case QStyle::CC_ScrollBar:
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{
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if (const QStyleOptionSlider* sopt = qstyleoption_cast<const QStyleOptionSlider*>(option))
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{
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painter->save();
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painter->setRenderHint(QPainter::Antialiasing);
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painter->setPen(Qt::NoPen);
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QRect scrollBarRect = sopt->rect;
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if (_pIsExpand)
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{
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// 背景绘制
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painter->setOpacity(_pOpacity);
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painter->setPen(Qt::NoPen);
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painter->setBrush(ElaThemeColor(_themeMode, BasicBase));
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painter->drawRoundedRect(scrollBarRect, 6, 6);
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//指示器绘制 center()在此处不适用 存在外围边距宽度 需手动计算
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int sideLength = 8;
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painter->setBrush(ElaThemeColor(_themeMode, ScrollBarHandle));
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if (sopt->orientation == Qt::Horizontal)
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{
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QRect leftIndicatorRect = subControlRect(control, sopt, QStyle::SC_ScrollBarSubLine, widget);
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QRect rightIndicatorRect = subControlRect(control, sopt, QStyle::SC_ScrollBarAddLine, widget);
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// 左三角
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qreal centerLeftX = leftIndicatorRect.x() + leftIndicatorRect.width() / 2;
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qreal centerRightX = rightIndicatorRect.x() + rightIndicatorRect.width() / 2;
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qreal centerY = leftIndicatorRect.height() / 2;
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QPainterPath leftPath;
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leftPath.moveTo(centerLeftX - qCos(30 * M_PI / 180.0) * sideLength / 2, centerY);
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leftPath.lineTo(centerLeftX + qCos(30 * M_PI / 180.0) * sideLength / 2, centerY + sideLength / 2);
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leftPath.lineTo(centerLeftX + qCos(30 * M_PI / 180.0) * sideLength / 2, centerY - sideLength / 2);
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leftPath.closeSubpath();
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painter->drawPath(leftPath);
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// 右三角
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QPainterPath rightPath;
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rightPath.moveTo(centerRightX + qCos(30 * M_PI / 180.0) * sideLength / 2, centerY);
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rightPath.lineTo(centerRightX - qCos(30 * M_PI / 180.0) * sideLength / 2, centerY + sideLength / 2);
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rightPath.lineTo(centerRightX - qCos(30 * M_PI / 180.0) * sideLength / 2, centerY - sideLength / 2);
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rightPath.closeSubpath();
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painter->drawPath(rightPath);
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}
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else
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{
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QRect upIndicatorRect = subControlRect(control, sopt, QStyle::SC_ScrollBarSubLine, widget);
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QRect downIndicatorRect = subControlRect(control, sopt, QStyle::SC_ScrollBarAddLine, widget);
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qreal centerToTop = (sideLength / 2) / qCos(30 * M_PI / 180.0);
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qreal centerToBottom = (sideLength / 2) * qTan(30 * M_PI / 180.0);
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// 上三角
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qreal centerX = upIndicatorRect.width() / 2.0;
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qreal centerUpY = upIndicatorRect.center().y() + 2;
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qreal centerDownY = downIndicatorRect.center().y() + 2;
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QPainterPath upPath;
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upPath.moveTo(centerX, centerUpY - centerToTop);
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upPath.lineTo(centerX + sideLength / 2, centerUpY + centerToBottom);
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upPath.lineTo(centerX - sideLength / 2, centerUpY + centerToBottom);
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upPath.closeSubpath();
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painter->drawPath(upPath);
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// 下三角
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QPainterPath downPath;
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downPath.moveTo(centerX, centerDownY + centerToBottom);
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downPath.lineTo(centerX + sideLength / 2, centerDownY - centerToTop);
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downPath.lineTo(centerX - sideLength / 2, centerDownY - centerToTop);
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downPath.closeSubpath();
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painter->drawPath(downPath);
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}
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}
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painter->setOpacity(1);
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//滑块绘制
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QRectF sliderRect = subControlRect(control, sopt, QStyle::SC_ScrollBarSlider, widget);
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painter->setBrush(ElaThemeColor(_themeMode, ScrollBarHandle));
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if (sopt->orientation == Qt::Horizontal)
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{
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sliderRect.setRect(sliderRect.x(), sliderRect.bottom() - _sliderMargin - _pSliderExtent, sliderRect.width(), _pSliderExtent);
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}
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else
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{
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sliderRect.setRect(sliderRect.right() - _sliderMargin - _pSliderExtent, sliderRect.y(), _pSliderExtent, sliderRect.height());
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}
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painter->drawRoundedRect(sliderRect, _pSliderExtent / 2.0, _pSliderExtent / 2.0);
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painter->restore();
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}
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return;
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}
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default:
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{
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break;
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}
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}
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QProxyStyle::drawComplexControl(control, option, painter, widget);
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}
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int ElaScrollBarStyle::pixelMetric(PixelMetric metric, const QStyleOption* option, const QWidget* widget) const
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{
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// qDebug() << metric << QProxyStyle::pixelMetric(metric, option, widget);
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switch (metric)
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{
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case QStyle::PM_ScrollBarExtent:
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{
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return _scrollBarExtent;
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}
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default:
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{
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break;
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}
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}
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return QProxyStyle::pixelMetric(metric, option, widget);
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}
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int ElaScrollBarStyle::styleHint(StyleHint hint, const QStyleOption* option, const QWidget* widget, QStyleHintReturn* returnData) const
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{
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if (hint == QStyle::SH_ScrollBar_LeftClickAbsolutePosition)
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{
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return true;
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}
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return QProxyStyle::styleHint(hint, option, widget, returnData);
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}
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void ElaScrollBarStyle::startExpandAnimation(bool isExpand)
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{
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if (isExpand)
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{
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_pIsExpand = true;
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QPropertyAnimation* opacityAnimation = new QPropertyAnimation(this, "pOpacity");
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connect(opacityAnimation, &QPropertyAnimation::valueChanged, this, [=]() {
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_pScrollBar->update();
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});
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opacityAnimation->setDuration(250);
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opacityAnimation->setEasingCurve(QEasingCurve::InOutSine);
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opacityAnimation->setStartValue(_pOpacity);
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opacityAnimation->setEndValue(1);
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opacityAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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QPropertyAnimation* extentAnimation = new QPropertyAnimation(this, "pSliderExtent");
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extentAnimation->setDuration(250);
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extentAnimation->setEasingCurve(QEasingCurve::InOutSine);
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extentAnimation->setStartValue(_pSliderExtent);
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extentAnimation->setEndValue(_scrollBarExtent - 2 * _sliderMargin);
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extentAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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}
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else
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{
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QPropertyAnimation* opacityAnimation = new QPropertyAnimation(this, "pOpacity");
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connect(opacityAnimation, &QPropertyAnimation::finished, this, [=]() {
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_pIsExpand = false;
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});
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connect(opacityAnimation, &QPropertyAnimation::valueChanged, this, [=]() {
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_pScrollBar->update();
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});
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opacityAnimation->setDuration(250);
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opacityAnimation->setEasingCurve(QEasingCurve::InOutSine);
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opacityAnimation->setStartValue(_pOpacity);
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opacityAnimation->setEndValue(0);
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opacityAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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QPropertyAnimation* extentAnimation = new QPropertyAnimation(this, "pSliderExtent");
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extentAnimation->setDuration(250);
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extentAnimation->setEasingCurve(QEasingCurve::InOutSine);
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extentAnimation->setStartValue(_pSliderExtent);
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extentAnimation->setEndValue(2.4);
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extentAnimation->start(QAbstractAnimation::DeleteWhenStopped);
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}
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}
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