QTableWidget QTableView 自定义复杂表头(多行表头，表头合并) 、冻结、固定特定的行

#pragma execution_character_set("utf-8") #include "TDMSummaryTableWgt.h" #include <QHeaderView> #include <QDebug> #include <QTextOption> #include <QPainter> #include <QPushButton> #include <QHBoxLayout> #include <QScrollBar> #include <QHeaderView> TDMSummaryTableWgt::TDMSummaryTableWgt(QWidget *parent) : QTableWidget(parent) { initFrozenFrame(); initFrame(); //测试数据 for(int i = 0; i< 10; i++) appendRowData(); } TDMSummaryTableWgt::~TDMSummaryTableWgt() { delete m_frozenTableWgt; } void TDMSummaryTableWgt::appendRowData() { if (rowCount() >= ROWCOUNTPERPAGE) return; //添加到最后一行 int rowIndex = rowCount(); setRowCount(rowIndex + 1); //设置行高 setRowHeight(rowIndex, ROWHEIGHT); //填充最后一行的内容 for(int col = 0; col < 9; col++) { setItem(rowIndex, col, new QTableWidgetItem(QString("item%1%2").arg(rowIndex).arg(col))); item(rowIndex, col)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter); } //查看趋势图按钮 QFrame *frame = new QFrame(this); QPushButton *btn = new QPushButton("查看趋势图"); btn->setStyleSheet(QString("QPushButton{color:#1564FF; background:transparent; " "font-family:\"微软雅黑\";" "font-size:12px;" "border:1px solid #1564FF;" "border-radius:4px;" "min-width:80px; max-width:80px;" "min-height:24px; max-height:24px;}" "QPushButton:hover{color:#FFFFFF; background-color:#1F51B3;}" "QPushButton:checked:{color:#FFFFFF;background-color:#264279;}")); btn->setCheckable(true); connect(btn, &QPushButton::clicked, this, [=]{ emit sigViewBtnClicked(rowIndex); }); QHBoxLayout *layout = new QHBoxLayout(); layout->addWidget(btn); layout->addSpacerItem(new QSpacerItem(20,20, QSizePolicy::Expanding)); frame->setLayout(layout); setCellWidget(rowIndex, 9, frame); } void TDMSummaryTableWgt::initFrame() { clearContents(); setColumnCount(10); horizontalHeader()->setVisible(true);//表头不可见 int headerHeight = m_frozenTableWgt->rowHeight(0) + m_frozenTableWgt->rowHeight(1);//设置成被m_frozenTableWgt遮挡住 horizontalHeader()->setFixedHeight(headerHeight); verticalHeader()->setVisible(false);//表头不可见 setShowGrid(false);//网格线不可见 setEditTriggers(QAbstractItemView::NoEditTriggers);//设置单元格不可编辑 setSelectionMode(QAbstractItemView::SingleSelection);//单选 setSelectionBehavior(QAbstractItemView::SelectRows);//选行` horizontalHeader()->setStretchLastSection(true);//最后一个单元格扩展 setFocusPolicy(Qt::NoFocus);//解决选中虚框问题 setFrameShape(QFrame::NoFrame);//去除边框 setVerticalScrollMode(ScrollPerPixel); setHorizontalScrollMode(ScrollPerPixel); setItemDelegate(new ItemDelegate(1));//设置绘画代理（主要在代理中画出来header） } void TDMSummaryTableWgt::initFrozenFrame() { m_frozenTableWgt = new QTableWidget(this); m_frozenTableWgt->horizontalHeader()->setVisible(false);//表头不可见 m_frozenTableWgt->verticalHeader()->setVisible(false);//表头不可见 m_frozenTableWgt->setShowGrid(false);//网格线不可见 m_frozenTableWgt->setEditTriggers(QAbstractItemView::NoEditTriggers);//设置单元格不可编辑 m_frozenTableWgt->horizontalHeader()->setStretchLastSection(true);//最后一个单元格扩展 m_frozenTableWgt->setFocusPolicy(Qt::NoFocus);//解决选中虚框问题 m_frozenTableWgt->setFrameShape(QFrame::NoFrame);//去除边框 尴尬 m_frozenTableWgt->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);//隐藏滚动条 m_frozenTableWgt->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);// m_frozenTableWgt->setHorizontalScrollMode(ScrollPerPixel); m_frozenTableWgt->setItemDelegate(new ItemDelegate(0));//设置绘画代理（主要在代理中画出来header） viewport()->stackUnder(m_frozenTableWgt);//设置窗口层次 m_frozenTableWgt->setColumnCount(10);//header10列 m_frozenTableWgt->setRowCount(2);//header2行 m_frozenTableWgt->setRowHeight(0, 42);//第一行设置高度42px m_frozenTableWgt->setRowHeight(1, 42);//第二行设置高度42px for (int row = 2; row < m_frozenTableWgt->rowCount(); ++row)//隐藏2行后的行 m_frozenTableWgt->setRowHidden(row, true); //===================设置header内容=================// //合并单元格 m_frozenTableWgt->setSpan(0, 0, 2, 1);//老师ID m_frozenTableWgt->setSpan(0, 1, 2, 1);//老师姓名 m_frozenTableWgt->setSpan(0, 2, 2, 1);//老师姓名 m_frozenTableWgt->setSpan(0, 3, 1, 4);//最新日期（8月20） m_frozenTableWgt->setSpan(0, 7, 1, 2);//前一日（8月19） m_frozenTableWgt->setSpan(0, 9, 2, 1);//操作 m_frozenTableWgt->setItem(0, 0, new QTableWidgetItem("老师ID")); m_frozenTableWgt->setItem(0, 1, new QTableWidgetItem("老师姓名")); m_frozenTableWgt->setItem(0, 2, new QTableWidgetItem("老师姓名")); m_frozenTableWgt->setItem(0, 3, new QTableWidgetItem("8月20日")); m_frozenTableWgt->setItem(0, 7, new QTableWidgetItem("8月19日")); m_frozenTableWgt->setItem(0, 9, new QTableWidgetItem("操作")); m_frozenTableWgt->setItem(1, 3, new QTableWidgetItem("续报率")); m_frozenTableWgt->setItem(1, 4, new QTableWidgetItem("新学员续报率")); m_frozenTableWgt->setItem(1, 5, new QTableWidgetItem("续报增长人数")); m_frozenTableWgt->setItem(1, 6, new QTableWidgetItem("续报增长率")); m_frozenTableWgt->setItem(1, 7, new QTableWidgetItem("续报增长率")); m_frozenTableWgt->setItem(1, 8, new QTableWidgetItem("新学员续报率")); //连接信号槽。用于滚动条联动 connect(m_frozenTableWgt->verticalScrollBar(), &QAbstractSlider::valueChanged, verticalScrollBar(), &QAbstractSlider::setValue); connect(verticalScrollBar(), &QAbstractSlider::valueChanged, m_frozenTableWgt->verticalScrollBar(), &QAbstractSlider::setValue); updateFrozenTableGeometry();//更新位置 m_frozenTableWgt->show(); } void TDMSummaryTableWgt::updateFrozenTableGeometry() { m_frozenTableWgt->setGeometry(frameWidth(), frameWidth(), viewport()->width(), horizontalHeader()->height()); } void TDMSummaryTableWgt::resizeEvent(QResizeEvent *event) { QTableView::resizeEvent(event); updateFrozenTableGeometry(); } QModelIndex TDMSummaryTableWgt::moveCursor(QAbstractItemView::CursorAction cursorAction, Qt::KeyboardModifiers modifiers) { QModelIndex current = QTableView::moveCursor(cursorAction, modifiers); if (cursorAction == MoveUp && current.row() > 0 && visualRect(current).topLeft().y() < m_frozenTableWgt->rowHeight(1) ){ const int newValue = verticalScrollBar()->value() + visualRect(current).topLeft().y() - m_frozenTableWgt->rowHeight(0) - m_frozenTableWgt->rowHeight(1); verticalScrollBar()->setValue(newValue); } return current; } void TDMSummaryTableWgt::scrollTo(const QModelIndex &index, QAbstractItemView::ScrollHint hint) { if (index.row() > 0) QTableView::scrollTo(index, hint); } ItemDelegate::ItemDelegate(int type, QObject *parent) : QStyledItemDelegate(parent), m_type(type) { } void ItemDelegate::paint(QPainter *painter, const QStyleOptio