把你的这段代码包含在mainwindow.h里,mainwindow.h的代码是#ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> QT_BEGIN_NAMESPACE namespace Ui { class MainWindow; } QT_END_NAMESPACE class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = nullptr); ~MainWindow(); public slots: void getData(QString data);//第二步建立一个槽函数 private slots: void on_pushButton_clicked(); void on_pushButton_2_clicked(); void on_pushButton_3_clicked(); private: Ui::MainWindow *ui; QStringList RandPlist , RP; bool OK; }; #endif // MAINWINDOW_H
时间: 2024-02-20 08:59:32 浏览: 82
好的,将刚才的NumberKeyboard类包含在mainwindow.h文件中,可以按照以下步骤进行:
1. 在mainwindow.h文件中添加NumberKeyboard类的声明,包括构造函数和信号声明:
```cpp
class NumberKeyboard : public QWidget
{
Q_OBJECT
public:
NumberKeyboard(QWidget *parent = nullptr);
signals:
void numberClicked(int);
void backspaceClicked();
};
```
2. 将NumberKeyboard的构造函数实现代码复制到mainwindow.h文件中:
```cpp
NumberKeyboard::NumberKeyboard(QWidget *parent)
: QWidget(parent)
{
QGridLayout *layout = new QGridLayout(this);
// 创建数字按钮,编号从0~9,放置到布局中
for (int i = 0; i < 10; ++i) {
QPushButton *button = new QPushButton(QString::number(i), this);
button->setFixedSize(40, 40);
layout->addWidget(button, i / 3, i % 3);
connect(button, &QPushButton::clicked, this, [=](){
emit numberClicked(i);
});
}
// 创建回退按钮,放置到布局中
QPushButton *backspaceButton = new QPushButton("<-", this);
backspaceButton->setFixedSize(40, 40);
layout->addWidget(backspaceButton, 3, 2);
connect(backspaceButton, &QPushButton::clicked, this, [=](){
emit backspaceClicked();
});
setFixedSize(120, 160);
setStyleSheet("background-color: #CCCCCC;");
}
```
3. 在MainWindow类中添加一个NumberKeyboard类型的成员变量:
```cpp
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
MainWindow(QWidget *parent = nullptr);
~MainWindow();
public slots:
void getData(QString data);
private slots:
void on_pushButton_clicked();
void on_pushButton_2_clicked();
void on_pushButton_3_clicked();
private:
Ui::MainWindow *ui;
QStringList RandPlist, RP;
bool OK;
NumberKeyboard *keyboard; // 添加NumberKeyboard成员变量
};
```
4. 在MainWindow类的构造函数中创建NumberKeyboard对象,并将其信号连接到QLineEdit控件的槽函数:
```cpp
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
{
ui->setupUi(this);
// 创建NumberKeyboard对象,并将其信号连接到QLineEdit控件的槽函数
keyboard = new NumberKeyboard(this);
connect(keyboard, &NumberKeyboard::numberClicked, ui->lineEdit, &QLineEdit::insert);
connect(keyboard, &NumberKeyboard::backspaceClicked, ui->lineEdit, &QLineEdit::backspace);
}
```
完成以上步骤后,你就可以在MainWindow中使用NumberKeyboard软键盘了。记得在mainwindow.cpp文件中添加NumberKeyboard的实现代码。
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