diff --git a/Demo/NewFramelessWindow.py b/Demo/NewFramelessWindow.py index f094890..1b077fe 100644 --- a/Demo/NewFramelessWindow.py +++ b/Demo/NewFramelessWindow.py @@ -12,89 +12,105 @@ Created on 2018年4月30日 from Lib.ui_frameless import Ui_FormFrameless from PyQt5.QtCore import QTimer, Qt, QEvent, QObject -from PyQt5.QtGui import QWindow, QPainter, QPen, QColor +from PyQt5.QtGui import QWindow, QPainter, QColor, QMouseEvent from PyQt5.QtWidgets import QApplication, QWidget, QMessageBox class FramelessObject(QObject): + Margins = 3 # 边缘边距 + TitleHeight = 36 # 标题栏高度 + Widgets = set() # 无边框窗口集合 - @staticmethod - def _get_edges(pos): + @classmethod + def set_margins(cls, margins): + cls.Margins = margins + + @classmethod + def set_title_height(cls, height): + cls.TitleHeight = height + + @classmethod + def add_widget(cls, widget): + cls.Widgets.add(widget) + + @classmethod + def del_widget(cls, widget): + if widget in cls.Widgets: + cls.Widgets.remove(widget) + + def _get_edges(self, pos, width, height): """根据坐标获取方向 :param pos: QPoint - :return: Qt::Edges + :param width: int + :param height: int + :return: Qt.Edges """ edge = 0 x, y = pos.x(), pos.y() - widget = QApplication.instance().activeWindow() - if not widget: - return edge - left, top, right, bottom = widget.layout().getContentsMargins() - if y <= top: + if y <= self.Margins: edge |= Qt.TopEdge - if x <= left: + if x <= self.Margins: edge |= Qt.LeftEdge - if x >= widget.width() - right: + if x >= width - self.Margins: edge |= Qt.RightEdge - if y >= widget.height() - bottom: + if y >= height - self.Margins: edge |= Qt.BottomEdge return edge - @staticmethod - def _adjust_cursor(edges): + def _get_cursor(self, edges): """调整鼠标样式 :param edges: int or None + :return: Qt.CursorShape """ - # print('edges', edges) - widget = QApplication.instance().activeWindow() - if not widget: - return if edges == Qt.LeftEdge | Qt.TopEdge or edges == Qt.RightEdge | Qt.BottomEdge: - widget.setCursor(Qt.SizeFDiagCursor) + return Qt.SizeFDiagCursor elif edges == Qt.RightEdge | Qt.TopEdge or edges == Qt.LeftEdge | Qt.BottomEdge: - widget.setCursor(Qt.SizeBDiagCursor) + return Qt.SizeBDiagCursor elif edges == Qt.LeftEdge or edges == Qt.RightEdge: - widget.setCursor(Qt.SizeHorCursor) + return Qt.SizeHorCursor elif edges == Qt.TopEdge or edges == Qt.BottomEdge: - widget.setCursor(Qt.SizeVerCursor) + return Qt.SizeVerCursor + + return Qt.ArrowCursor + + def is_titlebar(self, pos): + """判断是否是标题栏 + :param pos: QPoint + :return: bool + """ + return pos.y() <= self.TitleHeight + + def moveOrResize(self, window, pos, width, height): + edges = self._get_edges(pos, width, height) + if edges: + if window.windowState() == Qt.WindowNoState: + window.startSystemResize(edges) else: - widget.setCursor(Qt.ArrowCursor) + if self.is_titlebar(pos): + window.startSystemMove() def eventFilter(self, obj, event): - # 鼠标移动改变光标 - if event.type() == QEvent.MouseMove: - widget = QApplication.instance().activeWindow() - if widget and event.buttons() == Qt.NoButton and not ( - widget.isMaximized() or widget.isFullScreen()): - # 鼠标移动变更光标样式 - # print('MouseMove', event.pos()) - self._adjust_cursor(self._get_edges(event.pos())) + if obj.isWindowType(): + # top window 处理光标样式 + if event.type() == QEvent.MouseMove and obj.windowState() == Qt.WindowNoState: + obj.setCursor(self._get_cursor(self._get_edges(event.pos(), obj.width(), obj.height()))) + elif event.type() == QEvent.TouchUpdate: + self.moveOrResize(obj, event.pos(), obj.width(), obj.height()) + elif obj in self.Widgets and isinstance(event, QMouseEvent) and event.button() == Qt.LeftButton: + if event.type() == QEvent.MouseButtonDblClick: + # 双击最大化还原 + if self.is_titlebar(event.pos()): + if obj.windowState() == Qt.WindowFullScreen: + pass + elif obj.windowState() == Qt.WindowMaximized: + obj.showNormal() + else: + obj.showMaximized() + elif event.type() == QEvent.MouseButtonPress: + self.moveOrResize(obj.windowHandle(), event.pos(), obj.width(), obj.height()) - if event.type() == QEvent.MouseButtonPress and obj.objectName() == 'FramelessWindow': - # 鼠标按下 - edges = self._get_edges(event.pos()) - # 标题栏高度 - try: - height = obj.titleHeight() - except AttributeError: - height = 36 - # 优先判断边缘 - widget = QApplication.instance().activeWindow() - if edges != 0 and not (widget.isMaximized() or widget.isFullScreen()): - # 按下窗口边缘边距位置 - self._adjust_cursor(edges) - # 交给系统去调整大小 - print('startSystemResize') - obj.windowHandle().startSystemResize(edges) - elif event.y() <= height: - # 标题栏交给系统去移动 - print('startSystemMove') - obj.windowHandle().startSystemMove() - elif event.type() == QEvent.MouseButtonRelease: - # 鼠标释放 - self._adjust_cursor(None) return False @@ -103,7 +119,6 @@ class FramelessWindow(QWidget, Ui_FormFrameless): def __init__(self, *args, **kwargs): super(FramelessWindow, self).__init__(*args, **kwargs) self.setupUi(self) - self.setObjectName('FramelessWindow') # 过滤器中的名字一致 # 无边框 self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint) self.setAttribute(Qt.WA_TranslucentBackground, True) @@ -117,22 +132,6 @@ class FramelessWindow(QWidget, Ui_FormFrameless): self.buttonClose.clicked.connect(self.close) self.setStyleSheet('#widgetTitleBar{background: rgb(232, 232, 232);}') - def titleHeight(self): - """标题栏高度 - :return: int - """ - return self.widgetTitleBar.height() - - def mouseDoubleClickEvent(self, event): - """双击最大化还原 - :param event: QMouseEvent - """ - if self.isMaximized(): - self.showNormal() - else: - self.showMaximized() - event.accept() - def changeEvent(self, event): """窗口状态改变 :param event: @@ -146,7 +145,8 @@ class FramelessWindow(QWidget, Ui_FormFrameless): self.layout().setContentsMargins(0, 0, 0, 0) else: # TODO 与UI文件中的布局边距一致 - self.layout().setContentsMargins(3, 3, 3, 3) + m = FramelessObject.Margins + self.layout().setContentsMargins(m, m, m, m) def paintEvent(self, event): # 透明背景但是需要留下一个透明度用于鼠标捕获 @@ -170,6 +170,12 @@ if __name__ == '__main__': # 安装全局事件过滤器 fo = FramelessObject() app.installEventFilter(fo) - w = FramelessWindow() - w.show() + + w1 = FramelessWindow() + fo.add_widget(w1) + w1.show() + + w2 = FramelessWindow() + fo.add_widget(w2) + w2.show() sys.exit(app.exec_()) diff --git a/Demo/README.md b/Demo/README.md index 3bd9406..7e1b260 100644 --- a/Demo/README.md +++ b/Demo/README.md @@ -24,6 +24,7 @@ - [调用虚拟键盘](#21调用虚拟键盘) - [动态忙碌光标](#22动态忙碌光标) - [屏幕变动监听](#23屏幕变动监听) + - [无边框窗口](#24无边框窗口) ## 1、重启窗口Widget [运行 RestartWindow.py](RestartWindow.py) @@ -231,4 +232,13 @@ PyQt 结合 Opencv 进行人脸检测； 通过定时器减少不同的变化信号，尽量保证只调用一次槽函数来获取信息 -![ScreenNotify](ScreenShot/ScreenNotify.png) \ No newline at end of file +![ScreenNotify](ScreenShot/ScreenNotify.png) + +## 24、无边框窗口 +[运行 NewFramelessWindow.py](NewFramelessWindow.py) + +1. 该方法只针对 `Qt5.15` 以上版本有效 +2. 通过事件过滤器判断边缘设置鼠标样式 +3. 处理点击事件交通过 `QWindow.startSystemMove` 和 `QWindow.startSystemResize` 传递给系统处理 + +![NewFramelessWindow](ScreenShot/NewFramelessWindow.gif) \ No newline at end of file diff --git a/Demo/ScreenShot/NewFramelessWindow.gif b/Demo/ScreenShot/NewFramelessWindow.gif new file mode 100644 index 0000000..88f4333 Binary files /dev/null and b/Demo/ScreenShot/NewFramelessWindow.gif differ diff --git a/README.md b/README.md index 30e16ab..8fcad0b 100644 --- a/README.md +++ b/README.md @@ -256,6 +256,7 @@ https://pyqt.site 论坛是专门针对PyQt5学习和提升开设的网站，分 - [调用虚拟键盘](Demo/CallVirtualKeyboard.py) - [动态忙碌光标](Demo/GifCursor.py) - [屏幕变动监听](Demo/ScreenNotify.py) + - [无边框窗口](Demo/NewFramelessWindow.py) # QQ群