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67 lines
1.6 KiB
67 lines
1.6 KiB
10 months ago
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# 数字软键盘
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## qmake作为pri使用
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- 将文件夹复制到主工程Libs目录下
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- 主工程pro文件中加入：
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```qmake
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include($$PWD/Libs/SoftNumKeyBoard/NumKeyBoard.pri)
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```
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- 主工程中重写eventFilter函数，实现点击lineedit时，调出小键盘
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```cpp
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protected:
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virtual bool eventFilter(QObject * obj, QEvent *event) override;
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```
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```cpp
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bool SettingWidget::eventFilter(QObject *obj, QEvent * event)
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{
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auto _obj = static_cast<QLineEdit *>(obj);
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if(m_inputList.contains(_obj))
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{
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if(event->type() == QEvent::FocusIn)
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{
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if(!_keyBoard)
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{
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_keyBoard = new NumKeyDia(this);
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}
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//传入对应的QLineEdit
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_keyBoard->setPLineEdit(_obj);
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_keyBoard->exec();
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//QLineEdit取消聚焦，可以不用
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_obj->clearFocus();
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return true;
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}
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}
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return QObject::eventFilter(obj, event);
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}
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```
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- 对应的控件安装事件过滤器
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```cpp
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m_inputList = this->findChildren<QLineEdit *>();
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foreach (auto &i, m_inputList)
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{
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i->installEventFilter(this);
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i->setFocusPolicy(Qt::ClickFocus);
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}
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```
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- 控件设置属性
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```cpp
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//设置输入输出的最大值、最小值、名字和是否是数字
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ui->lineEdit_energyA->setProperty("IsNum", true);
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//double时，默认保留三位小数
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ui->lineEdit_energyA->setProperty("IsDouble", true);
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//输入的数不能超过最大值和最小值
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ui->lineEdit_energyA->setProperty("Max", 1.000);
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ui->lineEdit_energyA->setProperty("Min", 0.000);
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ui->lineEdit_energyA->setProperty("Name", tr("PressureA"));
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```
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