156 lines
3.8 KiB
C++
156 lines
3.8 KiB
C++
#include <QPainter>
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#include <QMouseEvent>
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#include "SwitchControl.h"
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SwitchControl::SwitchControl(QWidget *parent)
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: QWidget(parent),
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m_bChecked(false),
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m_background(Qt::black),
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m_checkedColor(0, 150, 136),
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m_disabledColor(190, 190, 190),
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m_thumbColor(Qt::white),
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m_radius(8.0),
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m_nHeight(16),
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m_nMargin(3)
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{
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// 鼠标滑过光标形状 - 手型
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setCursor(Qt::PointingHandCursor);
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// 连接信号槽
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connect(&m_timer, SIGNAL(timeout()), this, SLOT(onTimeout()));
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}
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// 绘制开关
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void SwitchControl::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setPen(Qt::NoPen);
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painter.setRenderHint(QPainter::Antialiasing);
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QPainterPath path;
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QColor background;
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QColor thumbColor;
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qreal dOpacity;
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if (isEnabled()) { // 可用状态
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if (m_bChecked) { // 打开状态
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background = m_checkedColor;
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thumbColor = m_checkedColor;
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dOpacity = 0.600;
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} else { //关闭状态
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background = m_background;
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thumbColor = m_thumbColor;
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dOpacity = 0.800;
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}
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} else { // 不可用状态
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background = m_background;
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dOpacity = 0.260;
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thumbColor = m_disabledColor;
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}
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// 绘制大椭圆
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painter.setBrush(background);
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painter.setOpacity(dOpacity);
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path.addRoundedRect(QRectF(m_nMargin, m_nMargin, width() - 2 * m_nMargin, height() - 2 * m_nMargin), m_radius, m_radius);
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painter.drawPath(path.simplified());
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// 绘制小椭圆
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painter.setBrush(thumbColor);
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painter.setOpacity(1.0);
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painter.drawEllipse(QRectF(m_nX - (m_nHeight / 2), m_nY - (m_nHeight / 2), height(), height()));
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}
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// 鼠标按下事件
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void SwitchControl::mousePressEvent(QMouseEvent *event)
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{
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if (isEnabled()) {
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if (event->buttons() & Qt::LeftButton) {
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event->accept();
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} else {
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event->ignore();
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}
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}
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}
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// 鼠标释放事件 - 切换开关状态、发射toggled()信号
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void SwitchControl::mouseReleaseEvent(QMouseEvent *event)
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{
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if (isEnabled()) {
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if ((event->type() == QMouseEvent::MouseButtonRelease) && (event->button() == Qt::LeftButton)) {
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event->accept();
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m_bChecked = !m_bChecked;
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emit toggled(m_bChecked);
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emit signal_clicked(m_bChecked);
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m_timer.start(10);
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} else {
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event->ignore();
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}
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}
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}
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// 大小改变事件
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void SwitchControl::resizeEvent(QResizeEvent *event)
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{
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m_nX = m_nHeight / 2;
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m_nY = m_nHeight / 2;
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QWidget::resizeEvent(event);
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}
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// 默认大小
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QSize SwitchControl::sizeHint() const
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{
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return minimumSizeHint();
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}
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// 最小大小
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QSize SwitchControl::minimumSizeHint() const
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{
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return QSize(2 * (m_nHeight + m_nMargin), m_nHeight + 2 * m_nMargin);
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}
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// 切换状态 - 滑动
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void SwitchControl::onTimeout()
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{
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if (m_bChecked) {
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m_nX += 1;
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if (m_nX >= width() - m_nHeight)
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m_timer.stop();
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} else {
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m_nX -= 1;
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if (m_nX <= m_nHeight / 2)
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m_timer.stop();
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}
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update();
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}
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// 返回开关状态 - 打开：true 关闭：false
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bool SwitchControl::isToggled() const
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{
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return m_bChecked;
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}
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// 设置开关状态
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void SwitchControl::setToggle(bool checked)
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{
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m_bChecked = checked;
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m_timer.start(10);
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}
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// 设置背景颜色
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void SwitchControl::setBackgroundColor(QColor color)
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{
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m_background = color;
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}
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// 设置选中颜色
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void SwitchControl::setCheckedColor(QColor color)
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{
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m_checkedColor = color;
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}
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// 设置不可用颜色
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void SwitchControl::setDisbaledColor(QColor color)
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{
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m_disabledColor = color;
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}
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