feat: 创建自定义对话框的使用

QtCustomDialogEx/ExCustomMainWin.cpp

@@ -0,0 +1,91 @@
+#include "ExCustomMainWin.h"
+#include "ui_ExCustomMainWin.h"
+#include <QDebug>
+
+
+ExCustomMainWin::ExCustomMainWin(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::ExCustomMainWin)
+{
+    ui->setupUi(this);
+    setWindowTitle(QObject::tr("自定义对话框的用法"));
+
+    m_model = nullptr;
+    m_dlglocate = nullptr;
+    m_dlgSetHeaders = nullptr;
+
+    m_model = new QStandardItemModel(this);
+}
+
+ExCustomMainWin::~ExCustomMainWin()
+{
+    delete ui;
+}
+
+void ExCustomMainWin::setACellText(int row, int col, QString text)
+{
+    QModelIndex index = m_model->index(row, col);
+    m_seleModel->clearSelection();
+    m_seleModel->setCurrentIndex(index, QItemSelectionModel::Select);
+    m_model->setData(index, text, Qt::DisplayRole);
+}
+
+void ExCustomMainWin::on_actSetHeader_triggered()
+{
+    if (m_dlgSetHeaders == nullptr)
+        m_dlgSetHeaders = new ExDlgSetHeaders(this);                       //只有主窗口销毁时候，该dialog窗口才会销毁
+
+    if(m_dlgSetHeaders->headerList().count() != m_model->columnCount()) {  //如果表头列数发生变化，就重新初始化
+        QStringList list;
+
+        for (int i = 0; i < m_model->columnCount(); i++) {
+            list.append(m_model->headerData(i, Qt::Horizontal, Qt::DisplayRole).toString());
+        }
+
+        m_dlgSetHeaders->setHeaderList(list);                               //对话框，初始化显示
+    }
+
+    int ret = m_dlgSetHeaders->exec();                                      //以模态对话框的方式显示
+    if (ret == QDialog::Accepted) {                                         //Ok按键被按下
+        QStringList list = m_dlgSetHeaders->headerList();
+        m_model->setHorizontalHeaderLabels(list);                           //设置模型的表头标题
+    }
+}
+
+
+void ExCustomMainWin::on_actSetSize_triggered()
+{
+    //创建模态对话框， 动态创建， 使用过后删除
+    ExDlgSize *dlgSize = new ExDlgSize(this);
+    Qt::WindowFlags flags = dlgSize->windowFlags();
+    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。
+    dlgSize->setRowCol(m_model->rowCount(), m_model->columnCount());
+
+    int ret = dlgSize->exec();                                              //以模态对话框显示
+    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
+        int row = dlgSize->getRowCount();
+        int col = dlgSize->getColCount();
+        m_model->setRowCount(row);
+        m_model->setColumnCount(col);
+    }
+
+    delete dlgSize;
+}
+
+void ExCustomMainWin::on_actLocate_triggered()
+{
+    ui->actLocate->setEnabled(false);
+     m_dlglocate = new ExDlgLocate(this);
+     m_dlglocate->setAttribute(Qt::WA_DeleteOnClose);                     //关闭对话框时候，自动删除
+
+     Qt::WindowFlags flags = m_dlglocate->windowFlags();
+     m_dlglocate->setWindowFlags(flags | Qt::WindowStaysOnTopHint);       //窗口置顶
+
+     m_dlglocate->setSpinRange(m_model->rowCount(), m_model->columnCount());
+     QModelIndex curIndex = m_seleModel->currentIndex();
+
+     if (curIndex.isValid())
+         m_dlglocate->setSpinValue(curIndex.row(), curIndex.column());
+
+     m_dlglocate->show();
+}