feat: QFileDialog QMessageBox QInputDialog QColorDialog and QFontDialog

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

QtCustomDialogEx/ExCustomMainWin.cpp

@@ -8,13 +8,30 @@ ExCustomMainWin::ExCustomMainWin(QWidget *parent) :
     ui(new Ui::ExCustomMainWin)
 {
     ui->setupUi(this);
-    setWindowTitle(QObject::tr("自定义对话框的用法"));
+    setWindowTitle(QObject::tr("自定义和标准对话框的用法"));
 
     m_model = nullptr;
     m_dlglocate = nullptr;
     m_dlgSetHeaders = nullptr;
 
-    m_model = new QStandardItemModel(this);
+    m_model = new QStandardItemModel(10, 5, this);                       //创建数据模型
+    m_seleModel = new QItemSelectionModel(m_model);                      //Item选择模型
+    connect(m_seleModel, SIGNAL(currentChanged(QModelIndex,QModelIndex)), this,SLOT(on_currentChanged(QModelIndex,QModelIndex)));
+
+    ui->tableView->setModel(m_model);
+    ui->tableView->setSelectionModel(m_seleModel);
+
+    //创建状态栏组件
+    m_labCellPos = new QLabel("当前单元格：",this);
+    m_labCellPos->setMinimumWidth(180);
+    m_labCellPos->setAlignment(Qt::AlignHCenter);
+
+    m_labCellText = new QLabel("单元格内容：",this);
+    m_labCellText->setMinimumWidth(200);
+
+
+    ui->statusBar->addWidget(m_labCellPos);
+    ui->statusBar->addWidget(m_labCellText);
 }
 
 ExCustomMainWin::~ExCustomMainWin()
@@ -22,12 +39,25 @@ ExCustomMainWin::~ExCustomMainWin()
     delete ui;
 }
 
+//定位到单元格，并设置字符串
 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);
+    m_model->setData(index, text, Qt::DisplayRole);                    //设置单元格字符串
+}
+
+//设置actLocatee的enabled属性
+void ExCustomMainWin::setActLocateEnable(bool enable)
+{
+    ui->actLocate->setEnabled(enable);
+}
+
+//将ExDlgLocate指针设置为NULL
+void ExCustomMainWin::setDlgLocateNull()
+{
+    m_dlglocate = nullptr;
 }
 
 void ExCustomMainWin::on_actSetHeader_triggered()
@@ -89,3 +119,15 @@ void ExCustomMainWin::on_actLocate_triggered()
 
      m_dlglocate->show();
 }
+
+void ExCustomMainWin::on_currentChanged(const QModelIndex &current, const QModelIndex &previous)
+{
+    if (current.isValid()) {
+        //状态栏的显示
+        QStandardItem* item;
+        item = m_model->itemFromIndex(current);
+
+        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
+        m_labCellText->setText("单元格内容："+ item->text());              //显示item的文字内容
+    }
+}

QtCustomDialogEx/ExCustomMainWin.h

@@ -8,6 +8,7 @@
 #include "ExDlgSize.h"
 #include "ExDlgSetHeaders.h"
 #include "ExDlgLocate.h"
+#include <QLabel>
 
 namespace Ui {
 class ExCustomMainWin;
@@ -21,12 +22,15 @@ public:
     explicit ExCustomMainWin(QWidget *parent = nullptr);
     ~ExCustomMainWin();
 
-    void setACellText(int row, int col, QString text);   //设置一个单元格,有ExDlgLocate调用
+    void setACellText(int row, int col, QString text);   //定位到单元格，并设置字符串
+    void setActLocateEnable(bool enable);                //设置actLocatee的enabled属性
+    void setDlgLocateNull();                             //将ExDlgLocate指针设置为NULL
 
 private slots:
     void on_actSetHeader_triggered();
     void on_actSetSize_triggered();
     void on_actLocate_triggered();
+    void on_currentChanged(const QModelIndex &current, const QModelIndex &previous);
 
 private:
     Ui::ExCustomMainWin *ui;
@@ -35,6 +39,8 @@ private:
     QItemSelectionModel *m_seleModel;                   //item选择模型
     ExDlgSetHeaders *m_dlgSetHeaders;
     ExDlgLocate *m_dlglocate;
+    QLabel  *m_labCellPos;                              //当前单元格行列号
+    QLabel  *m_labCellText;                             //当前单元格内容
 };
 
 #endif // EXCUSTOMMAINWIN_H

QtCustomDialogEx/ExCustomMainWin.ui

@@ -100,5 +100,22 @@
  <resources>
   <include location="resources.qrc"/>
  </resources>
- <connections/>
+ <connections>
+  <connection>
+   <sender>actQuit</sender>
+   <signal>triggered()</signal>
+   <receiver>ExCustomMainWin</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>407</x>
+     <y>235</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>

QtCustomDialogEx/ExDlgLocate.cpp

@@ -2,6 +2,7 @@
 #include "ui_ExDlgLocate.h"
 
 #include "ExCustomMainWin.h"
+#include <QMessageBox>
 
 ExDlgLocate::ExDlgLocate(QWidget *parent) :
     QDialog(parent),
@@ -12,30 +13,31 @@ ExDlgLocate::ExDlgLocate(QWidget *parent) :
 
 ExDlgLocate::~ExDlgLocate()
 {
+    QMessageBox::information(this,"提示","单元格定位对话框被删除");
     delete ui;
 }
 
+//设置spin的设定(最大)值
 void ExDlgLocate::setSpinRange(int rowCount, int colCount)
 {
-
+    ui->spinBoxRow->setMaximum(rowCount - 1);
+    ui->spinBoxCol->setMaximum(colCount - 1);
 }
 
+//设置spin的初始值
 void ExDlgLocate::setSpinValue(int rowNo, int colNo)
 {
-
+    ui->spinBoxRow->setValue(rowNo);
-}
+    ui->spinBoxCol->setValue(colNo);
-
-void ExDlgLocate::closeEvent(QCloseEvent *e)
-{
-
 }
 
+//设置文字
 void ExDlgLocate::on_btnSetText_clicked()
 {
     int row = ui->spinBoxRow->value();                                     //定位到单元格，并且设置字符串
     int col = ui->spinBoxCol->value();
 
-    ExCustomMainWin *parWind = new ExCustomMainWin(nullptr);               //向具体的item中填写字符串
+    ExCustomMainWin* parWind = (ExCustomMainWin*)parentWidget();           //向具体的item中填写字符串
     parWind->setACellText(row, col, ui->lineEdit->text());
 
     if (ui->checkBoxRow->isChecked())
@@ -43,3 +45,23 @@ void ExDlgLocate::on_btnSetText_clicked()
     if (ui->checkBoxCol->isChecked())
         ui->spinBoxCol->setValue(1 + ui->spinBoxCol->value());
 }
+
+//窗口关闭事件，关闭时释放本窗口
+void ExDlgLocate::closeEvent(QCloseEvent *event)
+{
+    ExCustomMainWin* parWind = (ExCustomMainWin*)parentWidget();           //获取父窗口指针
+    parWind->setActLocateEnable(true);                                     //设置 actLocatee 为true
+    parWind->setDlgLocateNull();                                           //将窗口指针设置为NULL
+}
+
+//窗口显示事件
+void ExDlgLocate::showEvent(QShowEvent *event)
+{
+    ExCustomMainWin* parWind = (ExCustomMainWin*)parentWidget();
+    parWind->setActLocateEnable(false);
+}
+
+void ExDlgLocate::on_btnClose_clicked()
+{
+
+}

QtCustomDialogEx/ExDlgLocate.h

@@ -18,17 +18,20 @@ public:
     explicit ExDlgLocate(QWidget *parent = nullptr);
     ~ExDlgLocate();
 
-    void setSpinRange(int rowCount, int colCount);      //设置spin的设定值
+    void setSpinRange(int rowCount, int colCount);         //设置spin的设定(最大)值
-    void setSpinValue(int rowNo, int colNo);            //设置spin的显示值
+    void setSpinValue(int rowNo, int colNo);               //设置spin的初始值
 
 private slots:
     void on_btnSetText_clicked();
-
+    void on_btnClose_clicked();
-private:
-    void closeEvent(QCloseEvent* e);
 
 private:
     Ui::ExDlgLocate *ui;
+
+    // QWidget interface
+protected:
+    virtual void closeEvent(QCloseEvent *event) override;  //窗口关闭事件，关闭时释放本窗口
+    virtual void showEvent(QShowEvent *event) override;    //窗口显示事件
 };
 
 #endif // EXDLGLOCATE_H

QtCustomDialogEx/ExDlgLocate.ui

@@ -98,5 +98,22 @@
  <resources>
   <include location="resources.qrc"/>
  </resources>
- <connections/>
+ <connections>
+  <connection>
+   <sender>btnClose</sender>
+   <signal>clicked()</signal>
+   <receiver>ExDlgLocate</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>366</x>
+     <y>136</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>206</x>
+     <y>79</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>

QtCustomDialogEx/ExDlgSetHeaders.cpp

@@ -8,6 +8,7 @@ ExDlgSetHeaders::ExDlgSetHeaders(QWidget *parent) :
 {
     ui->setupUi(this);
     m_model = new QStringListModel(this);
+    ui->listView->setModel(m_model);
 }
 
 ExDlgSetHeaders::~ExDlgSetHeaders()

README.md

@@ -61,7 +61,7 @@
 -  [时间日期(`QTime`/`QDate`/`QDateTime`)和定时器(`QTimer`)的介绍和使用](https://blog.csdn.net/qq_33154343/article/details/101040841)【QtDateTimeEx】
 - [`QComboBox`(下拉列表框)和`QPlainTextEdit`(多行富文本编辑器)的用法](https://blog.csdn.net/qq_33154343/article/details/101127870) 【QtQcomboBoxEx】
 - [列表控件`QListWidget`和工具按钮`QToolButton`的和用法](https://blog.csdn.net/qq_33154343/article/details/101314908)【QtQListWidgetEx】
-- 【QtQTreeWidgetEx】
+- 目录树组件`QTreeWidget`和停靠区域组件`QDockWidget`的用法【QtQTreeWidgetEx】
 - 【QtQTableWidgetEx】
 - 【QtQFileSystemModelEx】