qt之QComboBox定制

#include "stdafx.h" #include "combobox.h" CActionContentWidget::CActionContentWidget(const QString & text, QWidget * parent /*= nullptr*/) :QWidget(parent) { InitializeUI(); SetContentText(text); } CActionContentWidget::~CActionContentWidget() { } void CActionContentWidget::SetContentText(const QString & text) { if (m_ActText) { m_ActText->setText(text); } } void CActionContentWidget::SetItemIcon(const QString & icon, const QString & hover) { setStyleSheet(QString("QWidget#m_ContentWidget{background:#f0eeee;}" "QWidget#m_ContentWidget[MouseHover=true]{background:#f2868b;height:30px;}"//f2868b "QLabel{color:#777777;font-family:%1;font-size:12px;padding-left:8px;background:#f6f6f6;}" "QLabel[MouseHover=true]{color:#ffffff;font-family:%1;font-size:12px;padding-left:8px;background:transparent;}"//f2868b "QPushButton{border-image:url(%2); margin:2 2 2 2;}" "QPushButton[MouseHover=true]{border-image:url(%3); margin:3 3 3 3;}" ).arg(QStringLiteral("微软雅黑")).arg(icon).arg(hover)); } void CActionContentWidget::SetBackgroundRole(bool hover) { m_ContentWidget->setProperty("MouseHover", hover); m_ActIcon->setProperty("MouseHover", hover); m_ActText->setProperty("MouseHover", hover); QString styleStr = styleSheet(); setStyleSheet(""); setStyleSheet(styleStr); } void CActionContentWidget::enterEvent(QEvent * event) { qDebug() << "CActionContentWidget::enterEvent"; QWidget::enterEvent(event); } void CActionContentWidget::leaveEvent(QEvent * event) { qDebug() << "CActionContentWidget::leaveEvent" << event->type(); QWidget::leaveEvent(event); } bool CActionContentWidget::eventFilter(QObject * obj, QEvent * event) { if (obj == m_ActIcon || obj == m_ActText) { if (QMouseEvent * mouseEvent = static_cast<QMouseEvent *>(event)) { if (QEvent::MouseMove == event->type()) { qDebug() << "event->type()" << event->type(); } } } return QWidget::eventFilter(obj, event); } void CActionContentWidget::mousePressEvent(QMouseEvent * event) { if (event->button() == Qt::LeftButton) { m_Mouse_press = true; } } void CActionContentWidget::mouseReleaseEvent(QMouseEvent * event) { if (m_Mouse_press) { emit showText(m_ActText->text()); m_Mouse_press = false; } } void CActionContentWidget::InitializeUI() { m_ContentWidget = new QWidget(); m_ActIcon = new QPushButton(); m_ActText = new QLabel(); QHBoxLayout * mainLayout = new QHBoxLayout(); connect(m_ActIcon, &QPushButton::clicked, this, [this]{ emit showText(m_ActText->text()); }); m_ActIcon->installEventFilter(this); m_ActText->installEventFilter(this); mainLayout->setMargin(0); mainLayout->setSpacing(0); m_ActIcon->setFixedSize(45, 45); m_ContentWidget->setObjectName(QStringLiteral("m_ContentWidget")); m_ActIcon->setObjectName(QStringLiteral("ActionIcon")); m_ActText->setObjectName(QStringLiteral("m_ActText")); mainLayout->addWidget(m_ActIcon); mainLayout->addWidget(m_ActText); m_ContentWidget->setLayout(mainLayout); QVBoxLayout * fwLayout = new QVBoxLayout(); fwLayout->setMargin(0); fwLayout->setSpacing(0); fwLayout->addWidget(m_ContentWidget); setLayout(fwLayout); } void CheckBox::checkStateSet() { QCheckBox::checkStateSet(); } bool CheckBox::hitButton(const QPoint & pos) const { bool r = QCheckBox::hitButton(pos); qDebug() << "r" << r; return true; } void CheckBox::nextCheckState() { QCheckBox::nextCheckState(); } combobox::combobox(QWidget *parent) : QWidget(parent) { ui.setupUi(this); ConstructList(); // ConstructTable(); } combobox::~combobox() { } bool combobox::eventFilter(QObject * watched, QEvent * event) { if (watched->inherits("QWidget") && event->type() == QEvent::Paint) { if (CActionContentWidget * actionItem = dynamic_cast<CActionContentWidget *>(watched)) { if (actionItem->rect().contains(actionItem->mapFromGlobal(QCursor::pos()))) { actionItem->SetBackgroundRole(true); } else { actionItem->SetBackgroundRole(false); } } } return QWidget::eventFilter(watched, event); } void combobox::ConstructList() { QListWidget * listWidget = new QListWidget; listWidget->setViewMode(QListView::ListMode); for (int i = 0; i < 5; i++) { CActionContentWidget * itemWidget = new CActionContentWidget("fawefawe"); connect(itemWidget, &CActionContentWidget::showText, this, [this, listWidget](const QString & text){ ui.comboBox->hidePopup(); if (ui.comboBox->isEditable()) { ui.comboBox->setCurrentText(text); } else { for (int c = 0; c < listWidget->count(); ++c) { CActionContentWidget * itemWidget = dynamic_cast<CActionContentWidget *>(listWidget->itemWidget(listWidget->item(c))); if (itemWidget == sender()) { ui.comboBox->setCurrentIndex(c); } } } }); itemWidget->SetItemIcon(":/combobox/Resources/icon1.jpg", ":/combobox/Resources/icon1.jpg"); itemWidget->setFixedHeight(45); itemWidget->setFixedWidth(150); QListWidgetItem * item = new QListWidgetItem(listWidget); item->setText(QStringLiteral("%1").arg(i)); // item->setCheckState(Qt::Checked); listWidget->setItemWidget(item, itemWidget); listWidget->addItem(item); itemWidget->installEventFilter(this); } ui.comboBox->setModel(listWidget->model()); ui.comboBox->setView(listWidget); ui.comboBox->setEditable(true);//是否支持下拉框可编辑 ui.comboBox->setMaxVisibleItems(3); setStyleSheet("QComboBox{border:1px solid gray;}" "QComboBox QAbstractItemView::item{height:45px;}" //下拉选项高度 "QComboBox::down-arrow{image:url(:/combobox/Resources/icon1.jpg);}" //下拉箭头 "QComboBox::drop-down{border:0px;}"); //下拉按钮 } void combobox::ConstructTable() { setStyleSheet("QComboBox QAbstractItemView {selection-background-color: transparent;}"); QTableWidget * tableWidget = new QTableWidget(3, 3); tableWidget->verticalHeader()->setVisible(false); tableWidget->horizontalHeader()->setVisible(false); tableWidget->setShowGrid(false); for (int i = 0; i < 3; ++i) { tableWidget->setColumnWidth(i, 49); tableWidget->setRowHeight(i, 50); for (int j = 0; j < 3; ++j) { /* CActionContentWidget *itemWidget = new CActionContentWidget("fawefawe"); itemWidget->SetItemIcon(":/combobox/Resources/icon1.jpg", ":/combobox/Resources/icon1.jpg"); itemWidget->setFixedHeight(50); itemWidget->setFixedWidth(50);*/ CheckBox * itemWidget = new CheckBox; itemWidget->setFixedSize(50, 50); itemWidget->setStyleSheet(QString("QCheckBox {background-color:lightgray;}" "QCheckBox:checked{background-color:white;}")); connect(itemWidget, &QCheckBox::clicked, this, [this]{ QObject * sender = this->sender(); if (QCheckBox * item = dynamic_cast<QCheckBox *>(sender)) { QString text = ui.comboBox->currentText(); if (text.isEmpty() == false) { if (item->isChecked()) { if (text.split("|").indexOf(item->text()) == -1) { text.append("|" + item->text()); } } else { text.remove("|" + item->text()); text.remove(item->text()); if (text.size() != 0 && text.at(0) == '|') { text.remove(0, 1); } } } else { if (item->isChecked()) { text.append(item->text()); } } ui.comboBox->setCurrentText(text); } }); itemWidget->setText(QStringLiteral("好%1").arg(i)); itemWidget->setCheckable(true); // tableWidget->setItem(i, j, new QTableWidgetItem(QStringLiteral("热分%1").arg(i))); tableWidget->setCellWidget(i, j, itemWidget); itemWidget->installEventFilter(this); } } ui.comboBox->setModel(tableWidget->model()); ui.comboBox->setView(tableWidge