b265921182
QFileDialog 文件对话框 QColorDialog 颜色对话框 QFontDialog 字体对话框 QInputDialog 输入对话框 QMessageBox 消息对话框
134 lines
4.8 KiB
C++
134 lines
4.8 KiB
C++
#include "ExCustomMainWin.h"
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#include "ui_ExCustomMainWin.h"
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#include <QDebug>
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ExCustomMainWin::ExCustomMainWin(QWidget *parent) :
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QMainWindow(parent),
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ui(new Ui::ExCustomMainWin)
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{
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ui->setupUi(this);
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setWindowTitle(QObject::tr("自定义和标准对话框的用法"));
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m_model = nullptr;
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m_dlglocate = nullptr;
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m_dlgSetHeaders = nullptr;
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m_model = new QStandardItemModel(10, 5, this); //创建数据模型
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m_seleModel = new QItemSelectionModel(m_model); //Item选择模型
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connect(m_seleModel, SIGNAL(currentChanged(QModelIndex,QModelIndex)), this,SLOT(on_currentChanged(QModelIndex,QModelIndex)));
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ui->tableView->setModel(m_model);
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ui->tableView->setSelectionModel(m_seleModel);
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//创建状态栏组件
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m_labCellPos = new QLabel("当前单元格：",this);
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m_labCellPos->setMinimumWidth(180);
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m_labCellPos->setAlignment(Qt::AlignHCenter);
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m_labCellText = new QLabel("单元格内容：",this);
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m_labCellText->setMinimumWidth(200);
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ui->statusBar->addWidget(m_labCellPos);
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ui->statusBar->addWidget(m_labCellText);
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}
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ExCustomMainWin::~ExCustomMainWin()
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{
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delete ui;
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}
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//定位到单元格，并设置字符串
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void ExCustomMainWin::setACellText(int row, int col, QString text)
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{
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QModelIndex index = m_model->index(row, col);
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m_seleModel->clearSelection();
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m_seleModel->setCurrentIndex(index, QItemSelectionModel::Select);
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m_model->setData(index, text, Qt::DisplayRole); //设置单元格字符串
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}
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//设置actLocatee的enabled属性
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void ExCustomMainWin::setActLocateEnable(bool enable)
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{
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ui->actLocate->setEnabled(enable);
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}
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//将ExDlgLocate指针设置为NULL
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void ExCustomMainWin::setDlgLocateNull()
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{
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m_dlglocate = nullptr;
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}
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void ExCustomMainWin::on_actSetHeader_triggered()
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{
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if (m_dlgSetHeaders == nullptr)
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m_dlgSetHeaders = new ExDlgSetHeaders(this); //只有主窗口销毁时候，该dialog窗口才会销毁
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if(m_dlgSetHeaders->headerList().count() != m_model->columnCount()) { //如果表头列数发生变化，就重新初始化
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QStringList list;
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for (int i = 0; i < m_model->columnCount(); i++) {
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list.append(m_model->headerData(i, Qt::Horizontal, Qt::DisplayRole).toString());
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}
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m_dlgSetHeaders->setHeaderList(list); //对话框，初始化显示
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}
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int ret = m_dlgSetHeaders->exec(); //以模态对话框的方式显示
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if (ret == QDialog::Accepted) { //Ok按键被按下
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QStringList list = m_dlgSetHeaders->headerList();
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m_model->setHorizontalHeaderLabels(list); //设置模型的表头标题
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}
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}
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void ExCustomMainWin::on_actSetSize_triggered()
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{
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//创建模态对话框， 动态创建， 使用过后删除
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ExDlgSize *dlgSize = new ExDlgSize(this);
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Qt::WindowFlags flags = dlgSize->windowFlags();
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dlgSize->setWindowFlags(flags | Qt::MSWindowsFixedSizeDialogHint); //在窗口上给窗口一个窄的对话框边框。用于固定大小的对话框。
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dlgSize->setRowCol(m_model->rowCount(), m_model->columnCount());
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int ret = dlgSize->exec(); //以模态对话框显示
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if (ret == QDialog::Accepted) { //Ok按钮被按下，获取对话框中输入，设置行数和列数
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int row = dlgSize->getRowCount();
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int col = dlgSize->getColCount();
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m_model->setRowCount(row);
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m_model->setColumnCount(col);
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}
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delete dlgSize;
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}
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void ExCustomMainWin::on_actLocate_triggered()
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{
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ui->actLocate->setEnabled(false);
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m_dlglocate = new ExDlgLocate(this);
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m_dlglocate->setAttribute(Qt::WA_DeleteOnClose); //关闭对话框时候，自动删除
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Qt::WindowFlags flags = m_dlglocate->windowFlags();
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m_dlglocate->setWindowFlags(flags | Qt::WindowStaysOnTopHint); //窗口置顶
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m_dlglocate->setSpinRange(m_model->rowCount(), m_model->columnCount());
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QModelIndex curIndex = m_seleModel->currentIndex();
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if (curIndex.isValid())
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m_dlglocate->setSpinValue(curIndex.row(), curIndex.column());
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m_dlglocate->show();
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}
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void ExCustomMainWin::on_currentChanged(const QModelIndex ¤t, const QModelIndex &previous)
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{
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if (current.isValid()) {
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//状态栏的显示
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QStandardItem* item;
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item = m_model->itemFromIndex(current);
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m_labCellPos->setText(QString::asprintf("当前单元格：%d行，%d列", current.row(),current.column())); //显示模型索引的行和列号
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m_labCellText->setText("单元格内容："+ item->text()); //显示item的文字内容
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}
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}
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