NewFramelessWindow
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Irony
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commit
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4 changed files with 92 additions and 75 deletions
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@ -12,89 +12,105 @@ Created on 2018年4月30日
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from Lib.ui_frameless import Ui_FormFrameless
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from PyQt5.QtCore import QTimer, Qt, QEvent, QObject
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from PyQt5.QtGui import QWindow, QPainter, QPen, QColor
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from PyQt5.QtGui import QWindow, QPainter, QColor, QMouseEvent
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from PyQt5.QtWidgets import QApplication, QWidget, QMessageBox
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class FramelessObject(QObject):
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Margins = 3 # 边缘边距
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TitleHeight = 36 # 标题栏高度
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Widgets = set() # 无边框窗口集合
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@staticmethod
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def _get_edges(pos):
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@classmethod
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def set_margins(cls, margins):
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cls.Margins = margins
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@classmethod
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def set_title_height(cls, height):
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cls.TitleHeight = height
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@classmethod
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def add_widget(cls, widget):
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cls.Widgets.add(widget)
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@classmethod
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def del_widget(cls, widget):
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if widget in cls.Widgets:
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cls.Widgets.remove(widget)
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def _get_edges(self, pos, width, height):
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"""根据坐标获取方向
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:param pos: QPoint
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:return: Qt::Edges
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:param width: int
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:param height: int
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:return: Qt.Edges
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"""
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edge = 0
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x, y = pos.x(), pos.y()
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widget = QApplication.instance().activeWindow()
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if not widget:
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return edge
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left, top, right, bottom = widget.layout().getContentsMargins()
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if y <= top:
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if y <= self.Margins:
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edge |= Qt.TopEdge
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if x <= left:
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if x <= self.Margins:
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edge |= Qt.LeftEdge
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if x >= widget.width() - right:
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if x >= width - self.Margins:
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edge |= Qt.RightEdge
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if y >= widget.height() - bottom:
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if y >= height - self.Margins:
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edge |= Qt.BottomEdge
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return edge
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@staticmethod
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def _adjust_cursor(edges):
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def _get_cursor(self, edges):
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"""调整鼠标样式
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:param edges: int or None
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:return: Qt.CursorShape
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"""
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# print('edges', edges)
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widget = QApplication.instance().activeWindow()
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if not widget:
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return
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if edges == Qt.LeftEdge | Qt.TopEdge or edges == Qt.RightEdge | Qt.BottomEdge:
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widget.setCursor(Qt.SizeFDiagCursor)
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return Qt.SizeFDiagCursor
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elif edges == Qt.RightEdge | Qt.TopEdge or edges == Qt.LeftEdge | Qt.BottomEdge:
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widget.setCursor(Qt.SizeBDiagCursor)
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return Qt.SizeBDiagCursor
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elif edges == Qt.LeftEdge or edges == Qt.RightEdge:
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widget.setCursor(Qt.SizeHorCursor)
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return Qt.SizeHorCursor
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elif edges == Qt.TopEdge or edges == Qt.BottomEdge:
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widget.setCursor(Qt.SizeVerCursor)
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return Qt.SizeVerCursor
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return Qt.ArrowCursor
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def is_titlebar(self, pos):
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"""判断是否是标题栏
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:param pos: QPoint
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:return: bool
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"""
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return pos.y() <= self.TitleHeight
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def moveOrResize(self, window, pos, width, height):
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edges = self._get_edges(pos, width, height)
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if edges:
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if window.windowState() == Qt.WindowNoState:
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window.startSystemResize(edges)
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else:
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widget.setCursor(Qt.ArrowCursor)
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if self.is_titlebar(pos):
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window.startSystemMove()
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def eventFilter(self, obj, event):
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# 鼠标移动改变光标
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if event.type() == QEvent.MouseMove:
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widget = QApplication.instance().activeWindow()
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if widget and event.buttons() == Qt.NoButton and not (
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widget.isMaximized() or widget.isFullScreen()):
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# 鼠标移动变更光标样式
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# print('MouseMove', event.pos())
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self._adjust_cursor(self._get_edges(event.pos()))
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if obj.isWindowType():
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# top window 处理光标样式
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if event.type() == QEvent.MouseMove and obj.windowState() == Qt.WindowNoState:
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obj.setCursor(self._get_cursor(self._get_edges(event.pos(), obj.width(), obj.height())))
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elif event.type() == QEvent.TouchUpdate:
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self.moveOrResize(obj, event.pos(), obj.width(), obj.height())
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elif obj in self.Widgets and isinstance(event, QMouseEvent) and event.button() == Qt.LeftButton:
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if event.type() == QEvent.MouseButtonDblClick:
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# 双击最大化还原
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if self.is_titlebar(event.pos()):
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if obj.windowState() == Qt.WindowFullScreen:
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pass
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elif obj.windowState() == Qt.WindowMaximized:
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obj.showNormal()
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else:
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obj.showMaximized()
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elif event.type() == QEvent.MouseButtonPress:
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self.moveOrResize(obj.windowHandle(), event.pos(), obj.width(), obj.height())
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if event.type() == QEvent.MouseButtonPress and obj.objectName() == 'FramelessWindow':
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# 鼠标按下
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edges = self._get_edges(event.pos())
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# 标题栏高度
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try:
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height = obj.titleHeight()
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except AttributeError:
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height = 36
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# 优先判断边缘
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widget = QApplication.instance().activeWindow()
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if edges != 0 and not (widget.isMaximized() or widget.isFullScreen()):
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# 按下窗口边缘边距位置
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self._adjust_cursor(edges)
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# 交给系统去调整大小
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print('startSystemResize')
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obj.windowHandle().startSystemResize(edges)
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elif event.y() <= height:
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# 标题栏交给系统去移动
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print('startSystemMove')
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obj.windowHandle().startSystemMove()
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elif event.type() == QEvent.MouseButtonRelease:
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# 鼠标释放
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self._adjust_cursor(None)
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return False
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@ -103,7 +119,6 @@ class FramelessWindow(QWidget, Ui_FormFrameless):
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def __init__(self, *args, **kwargs):
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super(FramelessWindow, self).__init__(*args, **kwargs)
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self.setupUi(self)
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self.setObjectName('FramelessWindow') # 过滤器中的名字一致
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# 无边框
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self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint)
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self.setAttribute(Qt.WA_TranslucentBackground, True)
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@ -117,22 +132,6 @@ class FramelessWindow(QWidget, Ui_FormFrameless):
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self.buttonClose.clicked.connect(self.close)
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self.setStyleSheet('#widgetTitleBar{background: rgb(232, 232, 232);}')
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def titleHeight(self):
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"""标题栏高度
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:return: int
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"""
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return self.widgetTitleBar.height()
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def mouseDoubleClickEvent(self, event):
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"""双击最大化还原
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:param event: QMouseEvent
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"""
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if self.isMaximized():
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self.showNormal()
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else:
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self.showMaximized()
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event.accept()
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def changeEvent(self, event):
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"""窗口状态改变
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:param event:
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@ -146,7 +145,8 @@ class FramelessWindow(QWidget, Ui_FormFrameless):
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self.layout().setContentsMargins(0, 0, 0, 0)
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else:
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# TODO 与UI文件中的布局边距一致
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self.layout().setContentsMargins(3, 3, 3, 3)
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m = FramelessObject.Margins
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self.layout().setContentsMargins(m, m, m, m)
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def paintEvent(self, event):
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# 透明背景但是需要留下一个透明度用于鼠标捕获
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@ -170,6 +170,12 @@ if __name__ == '__main__':
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# 安装全局事件过滤器
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fo = FramelessObject()
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app.installEventFilter(fo)
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w = FramelessWindow()
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w.show()
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w1 = FramelessWindow()
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fo.add_widget(w1)
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w1.show()
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w2 = FramelessWindow()
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fo.add_widget(w2)
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w2.show()
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sys.exit(app.exec_())
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@ -24,6 +24,7 @@
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- [调用虚拟键盘](#21调用虚拟键盘)
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- [动态忙碌光标](#22动态忙碌光标)
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- [屏幕变动监听](#23屏幕变动监听)
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- [无边框窗口](#24无边框窗口)
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## 1、重启窗口Widget
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[运行 RestartWindow.py](RestartWindow.py)
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@ -231,4 +232,13 @@ PyQt 结合 Opencv 进行人脸检测；
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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
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## 24、无边框窗口
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[运行 NewFramelessWindow.py](NewFramelessWindow.py)
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1. 该方法只针对 `Qt5.15` 以上版本有效
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2. 通过事件过滤器判断边缘设置鼠标样式
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3. 处理点击事件交通过 `QWindow.startSystemMove` 和 `QWindow.startSystemResize` 传递给系统处理
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BIN
Demo/ScreenShot/NewFramelessWindow.gif
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Demo/ScreenShot/NewFramelessWindow.gif
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After Width: | Height: | Size: 927 KiB |
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@ -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
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- [调用虚拟键盘](Demo/CallVirtualKeyboard.py)
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- [动态忙碌光标](Demo/GifCursor.py)
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- [屏幕变动监听](Demo/ScreenNotify.py)
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- [无边框窗口](Demo/NewFramelessWindow.py)
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# QQ群
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