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：：
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; |
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原文链接：https://www.cnblogs.com/appsucc/p/14587599.html
