216 lines
10 KiB
C++
216 lines
10 KiB
C++
#pragma once
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#include <QComboBox>
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#include "global.h"
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class ComboBox : public QComboBox {
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public:
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ComboBox() {
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setStyle(new Style());
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setView(new view());
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setItemDelegate(new comboboxdelegate());
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QWidget* container = this->findChild<QFrame*>();
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if (container)
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{
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container->setWindowFlags(Qt::Popup | Qt::FramelessWindowHint | Qt::NoDropShadowWindowHint);
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container->setAttribute(Qt::WA_TranslucentBackground);
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}
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}
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class Style : public QProxyStyle {
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public:
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void drawPrimitive(QStyle::PrimitiveElement element, const QStyleOption* option, QPainter* painter,
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const QWidget* widget) const override {
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// 先调用默认的绘制
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auto t = qobject_cast<const QComboBox*>(widget);
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if (!t) return;
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if (option->type == QStyleOption::SO_FocusRect)
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{
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const QStyleOptionComboBox* opt = qstyleoption_cast<const QStyleOptionComboBox*>(option);
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// QProxyStyle::drawPrimitive(element, option, painter, widget);
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} else
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{
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qDebug() << QString::fromStdString(enum_int_to_string<QStyleOption::OptionType>(option->type).value());
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}
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if (element == QStyle::PE_FrameFocusRect)
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{
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// QProxyStyle::drawPrimitive(element, option, painter, widget);
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} else
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{
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qDebug() << "drawPrimitive == " << element;
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}
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}
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void drawComplexControl(ComplexControl control, const QStyleOptionComplex* option, QPainter* painter,
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const QWidget* widget) const override {
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auto t = qobject_cast<const QComboBox*>(widget);
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if (!t) return;
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auto opt = qstyleoption_cast<const QStyleOptionComboBox*>(option);
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// 控制当前选项外部的边框
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if (control == QStyle::CC_ComboBox)
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{
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QPen pen;
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painter->setPen(pen);
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painter->drawRoundedRect(widget->rect().adjusted(0, 0, -1, -2), 4, 4);
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// QProxyStyle::drawComplexControl(control, option, painter, widget);
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} else
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{
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qDebug() << "lineEdit drawComplexControl " << control;
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}
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}
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void drawControl(ControlElement element, const QStyleOption* option, QPainter* painter,
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const QWidget* widget) const override {
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auto t = qobject_cast<const QComboBox*>(widget);
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if (!t) return;
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auto opt = qstyleoption_cast<const QStyleOptionComboBox*>(option);
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// 当前选择的选项
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if (element == QStyle::CE_ComboBoxLabel)
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{
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QProxyStyle::drawControl(element, option, painter, widget);
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} else
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{
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qDebug() << "lineEdit drawControl " << element;
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}
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}
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QRect subElementRect(SubElement element, const QStyleOption* option, const QWidget* widget) const override {
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auto t = qobject_cast<const QComboBox*>(widget);
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if (!t) return QProxyStyle::subElementRect(element, option, widget);
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auto opt = qstyleoption_cast<const QStyleOptionComboBox*>(option);
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QRect ret = QProxyStyle::subElementRect(element, option, widget);
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// 这里可以自定义返回不同的 QRect 以控制子元素的大小或位置
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if (element == QStyle::SE_ComboBoxLayoutItem)
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{
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// rect.adjust(5, 5, -5, -5); // 例如，让文本内容区域缩小一点
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// return rect.adjusted(5, 5, -5, -5);
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return ret;
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} else
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{
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qDebug() << "lineEdit subElementRect " << element;
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}
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return ret;
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}
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QRect subControlRect(ComplexControl cc, const QStyleOptionComplex* option, SubControl sc,
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const QWidget* widget) const override {
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auto ret = QProxyStyle::subControlRect(cc, option, sc, widget);
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auto opt = qstyleoption_cast<const QStyleOptionComboBox*>(option);
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if (cc == QStyle::CC_ComboBox)
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{
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if (sc == SC_ComboBoxArrow)
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{
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// qDebug() << "This is the dropdown arrow button area: " << ret;
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} else if (sc == SC_ComboBoxListBoxPopup)
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{
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// qDebug() << "This is the edit box area: " << ret;
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} else if (sc == QStyle::SC_ScrollBarSubLine)
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{
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// qDebug() << "QStyle::SC_ScrollBarSubLine: " << ret;
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} else if (sc == QStyle::SC_ScrollBarAddLine)
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{
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// qDebug() << "QStyle::SC_ScrollBarSubLine: " << ret;
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} else
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{
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qDebug() << "Other subcontrol: " << sc;
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}
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} else
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{
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qDebug() << "QRect subControlRect ??????? : " << sc;
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}
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return ret;
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}
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};
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class view : public QListView {
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public:
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view(QWidget* parent = nullptr) : QListView(parent) {
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// 构造函数内容
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}
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[[nodiscard]] QSize viewportSizeHint() const override{
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return QListView::viewportSizeHint();
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}
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protected:
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void paintEvent(QPaintEvent* e) override {
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QPainter painter(this->viewport());
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auto s = this->viewport()->objectName();
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// 绘制背景色
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// painter.setBrush(Qt::blue);
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// painter.drawRoundedRect(rect(), 4, 4); // 使用白色填充整个视图区域
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// 调用基类的 paintEvent 以确保默认绘制行为
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QListView::paintEvent(e);
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}
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};
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class comboboxdelegate : public QStyledItemDelegate {
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public:
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explicit comboboxdelegate(QObject* parent = nullptr) : QStyledItemDelegate(parent) {}
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~comboboxdelegate() {}
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void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override {
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QStyledItemDelegate::paint(painter, option, index);
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// if (index.isValid())
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// {
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// painter->save();
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// QString name = index.data(Qt::DisplayRole).toString();
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// QVariant icondata = index.data(Qt::DecorationRole);
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// QIcon icon = icondata.value<QIcon>();
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// QString number = index.data(Qt::UserRole).toString();
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// bool isonline = index.data(Qt::UserRole + 1).toBool();
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// qDebug() << name << number << isonline;
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// QRectF rect;
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// rect.setX(option.rect.x());
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// rect.setY(option.rect.y());
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// rect.setWidth(option.rect.width() - 1);
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// rect.setHeight(option.rect.height() - 1);
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// QPainterPath path;
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// path.moveTo(rect.topRight() - QPointF(radius, 0));
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// path.lineTo(rect.topLeft() + QPointF(radius, 0));
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// path.quadTo(rect.topLeft(), rect.topLeft() + QPointF(0, radius));
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// path.lineTo(rect.bottomLeft() + QPointF(0, -radius));
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// path.quadTo(rect.bottomLeft(), rect.bottomLeft() + QPointF(radius, 0));
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// path.lineTo(rect.bottomRight() - QPointF(radius, 0));
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// path.quadTo(rect.bottomRight(), rect.bottomRight() + QPointF(0, -radius));
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// path.lineTo(rect.topRight() + QPointF(0, radius));
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// path.quadTo(rect.topRight(), rect.topRight() + QPointF(-radius, -0));
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// if (option.state.testFlag(QStyle::State_Selected))
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// {
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// painter->setPen(QPen(Qt::blue));
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// painter->setBrush(QColor(0, 255, 127));
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// painter->drawPath(path);
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// } else if (option.state.testFlag(QStyle::State_Raised))
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// {
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// painter->setPen(QPen(Qt::green));
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// painter->setBrush(QColor(0, 127, 255));
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// painter->drawPath(path);
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// } else
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// {
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// painter->setPen(QPen(Qt::gray));
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// painter->setBrush(QColor(255, 255, 255));
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// painter->drawPath(path);
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// }
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// QRect iconRect = QRect(rect.left() + 3, rect.top() + 3, 30, 30);
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// QRect nameRect = QRect(iconRect.right() + 5, rect.top() + 3, rect.width() - 80, 20);
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// QRect circle = QRect(nameRect.right() + 5, nameRect.top(), 10, 10);
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// QRect numberRect = QRect(nameRect.x(), nameRect.y() + 20, 100, 20);
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// qDebug() << iconRect << nameRect << circle << numberRect;
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// painter->drawEllipse(circle);
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// painter->setPen(QPen(QColor(0, 0, 0)));
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// painter->setFont(QFont("微软雅黑", 9, QFont::Bold));
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// painter->drawText(nameRect, Qt::AlignLeft, name);
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// painter->drawText(numberRect, Qt::AlignLeft, number);
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// painter->drawPixmap(iconRect, icon.pixmap(iconRect.size()));
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// painter->restore();
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// } else
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// {
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// qDebug() << "index is vaild?";
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// }
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}
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[[nodiscard]] QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override {
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Q_UNUSED(option)
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Q_UNUSED(index)
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return QStyledItemDelegate::sizeHint(option, index);
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}
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private:
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qreal radius = 8;
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};
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};
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