Qt中CQGUI框架之阴影圆角窗口实现_C/C++

Qt中CQGUI框架之阴影圆角窗口实现

2021-10-28 14:46IT文艺男 C/C++

这篇文章主要介绍了Qt中CQGUI框架之阴影圆角窗口实现，文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值，需要的朋友们下面随着小编来一起学习学习吧

大家好，我是IT文艺男，来自一线大厂的一线程序员

今天给大家讲解基于C++/Qt的CQGUI框架的阴影圆角窗口实现，实现效果如下图所示：：

Qt中CQGUI框架之阴影圆角窗口实现

CQGUI开发环境：：

Microsoft Visual Studio 2019
Qt5.15.1

步骤如下：

一、继承关系

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									class LoginPanel : public QDialog

二、窗口属性

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									setAttribute(Qt::WA_TranslucentBackground); //设置顶层面板背景透明

									setWindowFlags(Qt::FramelessWindowHint); //设置无边框

									setContentsMargins(10, 10, 10, 10);

Qt::WA_TranslucentBackground Indicates that the widget should have a translucent background, i.e., any non-opaque regions of the widgets will be translucent because the widget will have an alpha channel. Setting this flag causes WA_NoSystemBackground to be set. On Windows the widget also needs the Qt::FramelessWindowHint window flag to be set. This flag is set or cleared by the widget's author.

三、设置阴影效果

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									auto *defaultShadow = new QGraphicsDropShadowEffect();

									defaultShadow->setBlurRadius(10.0);

									defaultShadow->setColor(QColor(0, 0, 0, 160));

									defaultShadow->setOffset(0, 0);

									_loginMainFrm->setGraphicsEffect(defaultShadow);

四、设置样式

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									QFrame#loginMainFrm>QFrame#leftFrame{

									 background:rgba(255,255,255,0.9);

									 border-top-left-radius:6px;

									  border-top-right-radius:0px;

									  border-bottom-right-radius:0px;

									  border-bottom-left-radius:6px;

									}

五、事件响应

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									protected:

									  void mousePressEvent(QMouseEvent *e) override ;

									  void mouseReleaseEvent(QMouseEvent *e) override ;

									  void mouseMoveEvent(QMouseEvent *e) override ;

									  void closeEvent(QCloseEvent *e) override ;

									  bool event(QEvent* e) override ;

									protected:

									  bool eventFilter(QObject* o, QEvent* e) override;