贵阳网站建设设计公司哪家好,福州网站建设兼职,国内单页面网站,成都今晚全部解封自定义一个titlebar窗口#xff0c; 不带任何资源、QSS#xff0c;纯代码 1. 设置主窗口 透明背景#xff0c;让central_widget透明方式显示#xff0c;给后续main添加dropshadow效果#xff0c;用于放置实际的业务控件。 setWindowFlags(Qt::FramelessWindowHint | Qt…自定义一个titlebar窗口 不带任何资源、QSS纯代码 1. 设置主窗口 透明背景让central_widget透明方式显示给后续main添加dropshadow效果用于放置实际的业务控件。 setWindowFlags(Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint); setAttribute(Qt::WA_TranslucentBackground);QWidget *central_widget new QWidget(this); setCentralWidget(central_widget); central_widget-setStyleSheet(background:transparent);QVBoxLayout *central_layout new QVBoxLayout(central_widget); central_layout-setMargin(5); // 这个 margin 一般为effect的 一半QWidget *main new QWidget(this); central_layout-addWidget(main);QGraphicsDropShadowEffect *effect new QGraphicsDropShadowEffect(this);effect-setBlurRadius(10);effect-setColor(QColor(#373737));effect-setOffset(0,0);main-setStyleSheet(background-color: black); main-setGraphicsEffect(effect);QVBoxLayout *vbox_main new QVBoxLayout(main); vbox_main-setMargin(0); vbox_main-setSpacing(0);... // 添加后续业务代码。 2. 自定义右侧的按钮组 QWidget *titlebar new QWidget(this); titlebar-setStyleSheet(background-color: rgb(192,192,192)); titlebar-setMaximumHeight(28); vbox_main-addWidget(titlebar);QHBoxLayout *titlebar_layout new QHBoxLayout(titlebar); titlebar_layout-setMargin(2); titlebar_layout-setSpacing(2);titlebar_layout-addStretch();QPushButton* min_button new QPushButton(this); min_button-setIcon(style()-standardIcon(QStyle::SP_TitleBarMinButton)); titlebar_layout-addWidget(min_button); connect(min_button, QPushButton::pressed, this, []() {showMinimized(); });QPushButton* max_button new QPushButton(this); max_button-setIcon(style()-standardIcon(QStyle::SP_TitleBarMaxButton)); titlebar_layout-addWidget(max_button); connect(max_button, QPushButton::pressed, this, []() {showFullScreen(); });QPushButton* normal_button new QPushButton(this); normal_button-setIcon(style()-standardIcon(QStyle::SP_TitleBarNormalButton)); titlebar_layout-addWidget(normal_button); connect(normal_button, QPushButton::pressed, this, []() {showNormal(); }); normal_button-setVisible(false);QPushButton* close_button new QPushButton(this); close_button-setIcon(style()-standardIcon(QStyle::SP_TitleBarCloseButton)); titlebar_layout-addWidget(close_button); connect(close_button, QPushButton::pressed, this, []() {close(); }); 其中最小化、全屏化、正常化、关闭按钮可以取 Qt内置的标准icon style()-standardIcon(QStyle::SP_TitleBarMinButton); SP_TitleBarMaxButton SP_TitleBarNormalButton SP_TitleBarCloseButton 可通过QPainter来变色 QIcon changeColor(const QIcon icon, const QSize size, const QColor color) {QPixmap pixmap new icon.pixmap(size);QPainter painter(pixmap);painter.setCompositionMode(QPainter::CompositionMode_SourceIn);painter.fillRect(pixmap.rect(), color);return QIcon(pixmap); } 通过获取topLevelWidget 然后调用下列方法 void showMinimized();void showMaximized();void showFullScreen();void showNormal();bool close(); 3. 标题栏的拖动 void QFramelessShadowWindow::mousePressEvent(QMouseEvent *event) {if (event-button() Qt::LeftButton event-x() _max_button-x() - 30 event-y() 30){_dragging true;_mouse_position event-globalPos();_window_position geometry().topLeft();} }void QFramelessShadowWindow::mouseMoveEvent(QMouseEvent *event) {if (_dragging !_is_fullscreen){QPoint offset event-globalPos() - _mouse_position;move( _window_position offset);} }void QFramelessShadowWindow::mouseReleaseEvent(QMouseEvent *event) {if (event-button() Qt::LeftButton)_dragging false; }4. 最后一个问题 当全屏后会出现 放置实际的业务控件的区域显示不全此时不需要显示dropshadow的阴影效果。可以响应主窗口的changeEvent事件动态对layout的margin进行调整 void QFramelessShadowWindow::changeEvent(QEvent *event) {bool from_normal false;if (QEvent::WindowStateChange event-type()){QWindowStateChangeEvent *state_event static_castQWindowStateChangeEvent *(event);if (Q_NULLPTR ! state_event){if (state_event-oldState() Qt::WindowNoState){from_normal true;}else if (state_event-oldState() Qt::WindowFullScreen){_max_button-setVisible(true);_normal_button-setVisible(false);centralWidget()-layout()-setMargin(5);_is_fullscreen false;}}}QMainWindow::changeEvent(event);Qt::WindowStates state windowState();if (from_normal state Qt::WindowFullScreen){_max_button-setVisible(false);_normal_button-setVisible(true);centralWidget()-layout()-setMargin(0);_is_fullscreen true;} }