emsApplication/applications/emsConfigurer/devicepropertypage.cpp

#include "devicepropertypage.h"

#include <QGuiApplication>
#include <QTimer>
#include <QMessageBox>
#include <QTableView>
#include <QVBoxLayout>
#include <QPushButton>
#include <QScrollBar>
#include <QHeaderView>

#include "globalparameters.h"
#include "mytablemodel.h"

#define PAGES_FORMAT_STRING ("Total %1 Pages, Current No.%2 Page")
#define PER_PAGE_SIZE (30)

DevicePropertyPage::DevicePropertyPage(QWidget *parent) :
    QWidget(parent),m_pTableView(nullptr),m_pButton(nullptr)
{
    InitializeTable();

    m_pTimer = new QTimer(this);
    connect(m_pTimer, SIGNAL(timeout()), this, SLOT(handleTimeout()));
    //m_pTimer->start(AppData::getInstance()->nTimeOut);
}

DevicePropertyPage::~DevicePropertyPage()
{
}

void DevicePropertyPage::handleTimeout()
{
    if(m_pTimer->isActive())
    {
        m_pTimer->stop();

        Refresh();

        int nInterval = 5000;
        m_pTimer->start(nInterval*1000);
    }
}

void DevicePropertyPage::InitializeTableView(MyTableModel *model, QTableView *tableView)
{
    //设置tableview的model
    model->setHeadData(AppData::getInstance()->lstDataTableHeaderText);
    tableView->setModel(model);

    QHeaderView* pHeaderView = tableView->horizontalHeader();
    //pHeaderView->setStyleSheet("QHeaderView::section {color: black;padding-left: 4px;border: 1px solid #6c6c6c;}");
    pHeaderView->setStyleSheet("QHeaderView::section{background:lightgray;}");

    // pHeaderView->setSectionResizeMode(QHeaderView::Stretch); //Stretch

    pHeaderView->setHidden(false); //false 显示行号列  true Hide

    //pHeaderView->setVisible(true);
    //pHeaderView->setFixedHeight(40);

    //点击表时不对表头行光亮（获取焦点）
    pHeaderView->setHighlightSections(false);
    // pHeaderView->setDefaultSectionSize(200);

    //    //设置表头字体加粗
    //    QFont font =  pHeaderView->font();
    //    font.setBold(true);
    //    pHeaderView->setFont(font);

    //设置表头字体
    pHeaderView->setFont(QFont("Arial", 12));

    // 设置表头列宽自动调整
    for (int i = 0; i < model->columnCount(); ++i)
    {
        pHeaderView->setSectionResizeMode(i, QHeaderView::Interactive);
    }

    // 允许用户通过拖动表头边缘调整列宽
    //pHeaderView->setSectionResizeMode(QHeaderView::Interactive);

    tableView->verticalHeader()->setDefaultSectionSize(30); //行高

    tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
    tableView->setSelectionMode(QAbstractItemView::SingleSelection);

    tableView->setAlternatingRowColors(true);
    tableView->setTextElideMode(Qt::ElideMiddle);


    //所有单元格的字体  设置成一样
    tableView->setFont(QFont("Arial", 9));

    //设置表格数据区内的所有单元格都不允许编辑
    tableView->setEditTriggers(QAbstractItemView::NoEditTriggers);

#if 1
    //设置列宽
    int base = 120; //w / (model->columnCount()-1);
    tableView->setColumnWidth(0,base-30);
    tableView->setColumnWidth(1,base*5);
    tableView->setColumnWidth(2,base);
    tableView->setColumnWidth(3,base-40);
    tableView->setColumnWidth(4,base+60);
#endif

    tableView->show();
}

void DevicePropertyPage::InitializeTable()
{
    m_myModel = new MyTableModel(this);
    m_myModel->setHeadData(AppData::getInstance()->lstDataTableHeaderText);

    m_pTableView = new QTableView(this);
    m_pButton = new QPushButton(tr("Refresh"), this);

    m_pFirstButton = new QPushButton(tr("First"), this);
    m_pForwardButton = new QPushButton(tr("Forward"), this);
    m_pNextButton = new QPushButton(tr("Next"), this);
    m_pLastButton = new QPushButton(tr("Last"), this);

    m_pGotoPageNumberLineEdit = new QLineEdit(tr("1"), this);
    m_pGotoPageNumberLineEdit->setFixedWidth(40);
    m_pValidator = new QIntValidator(this);
    m_pGotoPageNumberLineEdit->setValidator(m_pValidator);
    m_pValidator->setRange(0, 100);

    m_pGotoPageNumberLabel = new QLabel(tr("Page"), this);
    m_pGotoPageNumberButton = new QPushButton(tr("Goto"), this);

    m_pPagesLabel = new QLabel(tr("Total %d Pages, Current No.%d Page"), this);

    // 创建主布局
    QVBoxLayout *mainLayout = new QVBoxLayout(this);

    InitializeTableView(m_myModel,m_pTableView);

    mainLayout->addWidget(m_pTableView);

    // 创建一个水平布局来包含按钮
    QHBoxLayout *buttonLayout = new QHBoxLayout();
    buttonLayout->addStretch();  // 让按钮保持在右侧

    buttonLayout->addWidget(m_pPagesLabel);
    QSpacerItem *spacer0 = new QSpacerItem(10, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
    buttonLayout->addItem(spacer0);


    buttonLayout->addWidget(m_pFirstButton);
    buttonLayout->addWidget(m_pForwardButton);
    buttonLayout->addWidget(m_pNextButton);
    buttonLayout->addWidget(m_pLastButton);

    QSpacerItem *spacer = new QSpacerItem(10, 20, QSizePolicy::Expanding, QSizePolicy::Minimum);
    buttonLayout->addItem(spacer);

    buttonLayout->addWidget(m_pGotoPageNumberLabel);
    buttonLayout->addWidget(m_pGotoPageNumberLineEdit);
    buttonLayout->addWidget(m_pGotoPageNumberButton);

    buttonLayout->addWidget(m_pButton);

    buttonLayout->setContentsMargins(0, 0, 0, 0);  // 取消按钮的边距

    // 将表格视图和按钮布局添加到主布局
    mainLayout->addLayout(buttonLayout);

    mainLayout->setContentsMargins(0, 0, 0, 0);  // 取消主布局的边距
    mainLayout->setSpacing(10);  // 取消布局间的间距

    // 设置固定大小和位置的按钮
    m_pButton->setFixedSize(100, 30);  // 设置按钮的固定大小

    // 连接信号和槽
    connect(m_pTableView, &QTableView::doubleClicked, this, &DevicePropertyPage::onTableViewDoubleClicked);
    connect(m_pButton, &QPushButton::clicked, this, &DevicePropertyPage::onButtonClicked);

    connect(m_pFirstButton, &QPushButton::clicked, this, &DevicePropertyPage::onFirstButtonClicked);
    connect(m_pLastButton, &QPushButton::clicked, this, &DevicePropertyPage::onLastButtonClicked);
    connect(m_pForwardButton, &QPushButton::clicked, this, &DevicePropertyPage::onForwardButtonClicked);
    connect(m_pNextButton, &QPushButton::clicked, this, &DevicePropertyPage::onNextButtonClicked);
    connect(m_pGotoPageNumberButton, &QPushButton::clicked, this, &DevicePropertyPage::onGotoButtonClicked);

    setLayout(mainLayout);
}

void DevicePropertyPage::setBaseType(unsigned int base, unsigned int mask)
{
    filterBaseType = base;
    mask_code = mask;
}

void DevicePropertyPage::onButtonClicked()
{
    m_pTimer->stop();

    Refresh();
}

void DevicePropertyPage::Refresh()
{
    QGuiApplication::setOverrideCursor(QCursor(Qt::WaitCursor));
    m_TotalTableData.clear();
    if (Fetch(m_TotalTableData,106))
    {
        PageDataProcess();
        m_myModel->setModelData(m_currentPageData);
    }
    updatePageButtonState();
    updatePageLabel();
    QGuiApplication::restoreOverrideCursor();
}

int DevicePropertyPage::PageDataProcess()
{
    //获取数据总数
    m_totalRows = m_TotalTableData.size();

    m_totalPageCount = 1;
    m_currentPage = 1;

    m_currentPageData.clear();

    if (m_totalRows <= PER_PAGE_SIZE)
    {
        m_currentPageData = m_TotalTableData;

        return 1;
    }

    m_totalPageCount = int(m_totalRows / PER_PAGE_SIZE) + 1;
    m_currentPageData = m_TotalTableData.mid(0, PER_PAGE_SIZE);

    return 1;
}

void DevicePropertyPage::updatePageLabel()
{
    QString s = QString(PAGES_FORMAT_STRING).arg(m_totalPageCount).arg(m_currentPage);
    m_pPagesLabel->setText(s);
}

void DevicePropertyPage::updatePageButtonState()
{
    if ( m_currentPage == m_totalPageCount) //翻到底了，超过最大的页数
    {
        m_pNextButton->setEnabled(false);
        m_pForwardButton->setEnabled(true);
        m_pLastButton->setEnabled(false);
        m_pFirstButton->setEnabled(true);
    }
    else if (m_currentPage == 1) //翻到头了
    {
        m_pNextButton->setEnabled(true);
        m_pForwardButton->setEnabled(false);
        m_pLastButton->setEnabled(true);
        m_pFirstButton->setEnabled(false);
    }
    else if (m_currentPage < m_totalPageCount) //页数在中间状态
    {
        m_pNextButton->setEnabled(true);
        m_pForwardButton->setEnabled(true);
        m_pLastButton->setEnabled(true);
        m_pFirstButton->setEnabled(true);
    }
    else
    {
        assert(false);
    }
}

void DevicePropertyPage::pageTo(int page)
{
    m_currentPageData.clear();
    int numLeftElements = m_totalRows - (page - 1) * PER_PAGE_SIZE;
    int numElements = numLeftElements >= PER_PAGE_SIZE ? PER_PAGE_SIZE : numLeftElements;
    m_currentPageData = m_TotalTableData.mid((page-1) * PER_PAGE_SIZE, numElements);
    m_myModel->setModelData(m_currentPageData);
}

void DevicePropertyPage::onTableViewDoubleClicked(const QModelIndex &index)
{
    //QAbstractItemModel *model=ui->tableView->model();
    MyTableModel *model = (MyTableModel *)m_pTableView->model();
    QModelIndex mindex = model->index(index.row(),7);  //index.row()为算选择的行号。7为所选中行的第8列。。
    QVariant datatemp=model->data(mindex);
}

void DevicePropertyPage::onFirstButtonClicked()
{
    m_currentPage = 1;

    updatePageButtonState();

    pageTo(m_currentPage);

    updatePageLabel();
}

void DevicePropertyPage::onLastButtonClicked()
{
    m_currentPage = m_totalPageCount;

    updatePageButtonState();

    pageTo(m_currentPage);

    updatePageLabel();
}

void DevicePropertyPage::onForwardButtonClicked()
{
    m_currentPage--;

    updatePageButtonState();

    m_currentPageData.clear();

    pageTo(m_currentPage);

    updatePageLabel();
}

void DevicePropertyPage::onNextButtonClicked()
{
    m_currentPage++;

    updatePageButtonState();

    m_currentPageData.clear();

    pageTo(m_currentPage);

    updatePageLabel();
}

void DevicePropertyPage::onGotoButtonClicked()
{
    int page = m_pGotoPageNumberLineEdit->text().toInt();
    if (page <=0 || page>m_totalPageCount)
    {
        QString s = QString(tr("Page number should be large than 0 and less than %1 !")).arg(m_totalPageCount);
        QMessageBox::critical(this, tr("Critical Message"),s);
        return ;
    }

    m_currentPage = page;

    updatePageButtonState();

    m_currentPageData.clear();

    pageTo(m_currentPage);

    updatePageLabel();
}

void DevicePropertyPage::resizeEvent(QResizeEvent *event)
{
    QWidget::resizeEvent(event);
#if 0
    // 获取当前QTableView的总宽度
    int currentTotalWidth = m_pTableView->viewport()->width();

    // 计算总的初始宽度
    int initialTotalWidth = 0;
    for (int width : columnWidths)
    {
        initialTotalWidth += width;
    }

    // 计算比例因子
    double scaleFactor = static_cast<double>(currentTotalWidth) / initialTotalWidth;

    // 重新设置列宽，按比例调整
    for (int i = 0; i < columnWidths.size(); ++i)
    {
        int newWidth = static_cast<int>(columnWidths[i] * scaleFactor);
        m_pTableView->setColumnWidth(i, newWidth);
    }
#endif
}