此程序大致功能为：可变换颜色，贴边隐藏。

变换颜色思路

QPalette( [ˈpælət] 调色板)类相当于对话框或控件的调色板，它管理着控件或窗体的所有颜色信息，每个窗体或控件都包含一个QPalette对象，在显示时按照它的QPalette对象中对各部分各状态下的颜色的描述来进行绘制。

实现代码

def Painting(self): color = random.choice(["CCFFFF","CC6699","CC99FF","99CCFF"]) palette1 = QPalette() palette1.setColor(self.backgroundRole(), QColor("#{}".format(color))) # 改变窗体颜色 self.setPalette(palette1)

贴边隐藏思路

可以判断窗口的位置，当与边缘的距离小于某值时，再判断鼠标是否在窗口，判断是否隐藏窗口；
根据隐藏窗口的隐藏位置，获得某块区域，当鼠标在这个位置时，显示窗口。

实现代码

鼠标进入事件，调用hide_or_show判断是否该显示

def enterEvent(self, event): self.hide_or_show('show', event)

鼠标离开事件，调用hide_or_show判断是否该隐藏

def leaveEvent(self, event): self.hide_or_show('hide', event)

鼠标点击事件

def mousePressEvent(self, event): if event.button() == Qt.LeftButton: self.dragPosition = event.globalPos() - self.frameGeometry( ).topLeft() QApplication.postEvent(self, QEvent(174)) event.accept()

捕捉鼠标移动事件

def mouseMoveEvent(self, event): if event.buttons() == Qt.LeftButton: try: self.move(event.globalPos() - self.dragPosition) event.accept() except:pass

判断是否该隐藏

def hide_or_show(self, mode, event): pos = self.frameGeometry().topLeft() if mode == 'show' and self.moved: if pos.x() + WINDOW_WEIGHT >= SCREEN_WEIGHT: # 右侧显示 self.startAnimation(SCREEN_WEIGHT - WINDOW_WEIGHT + 2, pos.y()) event.accept() self.moved = False elif pos.x() <= 0: # 左侧显示 self.startAnimation(0,pos.y()) event.accept() self.moved = False elif pos.y() <= 0: # 顶层显示 self.startAnimation(pos.x(),0) event.accept() self.moved = False elif mode == 'hide': if pos.x() + WINDOW_WEIGHT >= SCREEN_WEIGHT: # 右侧隐藏 self.startAnimation(SCREEN_WEIGHT - 2,pos.y()) event.accept() self.moved = True elif pos.x() <= 2: # 左侧隐藏 self.startAnimation(2 - WINDOW_WEIGHT,pos.y()) event.accept() self.moved = True elif pos.y() <= 2: # 顶层隐藏 self.startAnimation(pos.x(),2 - WINDOW_HEIGHT) event.accept() self.moved = True

将划入划出作为属性动画

def startAnimation(self,width,height): animation = QPropertyAnimation(self,b"geometry",self) startpos = self.geometry() animation.setDuration(200) newpos = QRect(width,height,startpos.width(),startpos.height()) animation.setEndValue(newpos) animation.start()

完整代码

import sys,randomfrom PyQt5.QtGui import QPalette,QColorfrom PyQt5.QtWidgets import QWidget,QVBoxLayout,QPushButton,\ QDesktopWidget,QApplicationfrom PyQt5.QtCore import Qt,QRect,QEvent,QPointfrom PyQt5.Qt import QCursor,QPropertyAnimationSCREEN_WEIGHT = 1920SCREEN_HEIGHT = 1080WINDOW_WEIGHT = 300WINDOW_HEIGHT = 600class Ui_Form(QWidget): def __init__(self): self.moved = False super(Ui_Form,self).__init__() self.setupUi() self.resize(WINDOW_WEIGHT, WINDOW_HEIGHT) self.show() def setupUi(self): self.setWindowFlags(Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint | Qt.Tool) # 去掉标题栏 self.widget = QWidget() self.Layout = QVBoxLayout(self.widget) self.Layout.setContentsMargins(0,0,0,0) self.setLayout(self.Layout) self.setWindowFlag(Qt.Tool) self.main_widget = QWidget() self.Layout.addWidget(self.main_widget) self.paint = QPushButton(self.main_widget) self.paint.setText("改变颜色") self.paint.move(QPoint(120,200)) self.paint.clicked.connect(self.Painting) self.exit = QPushButton(self.main_widget) self.exit.setText(" 退出 ") self.exit.move(QPoint(120,400)) self.exit.clicked.connect(lambda:exit(0)) self.setStyleSheet(''' QPushButton { color: rgb(137, 221, 255); background-color: rgb(37, 121, 255); border-style:none; border:1px solid #3f3f3f; padding:5px; min-height:20px; border-radius:15px; } ''') def Painting(self): color = random.choice(["CCFFFF","CC6699","CC99FF","99CCFF"]) palette1 = QPalette() palette1.setColor(self.backgroundRole(), QColor("#{}".format(color))) # 改变窗体颜色 self.setPalette(palette1) def enterEvent(self, event): self.hide_or_show('show', event) def leaveEvent(self, event): self.hide_or_show('hide', event) def mousePressEvent(self, event): if event.button() == Qt.LeftButton: self.dragPosition = event.globalPos() - self.frameGeometry( ).topLeft() QApplication.postEvent(self, QEvent(174)) event.accept() def mouseMoveEvent(self, event): if event.buttons() == Qt.LeftButton: try: self.move(event.globalPos() - self.dragPosition) event.accept() except:pass #def mouseReleaseEvent(self, event): #self.moved = True #self.hide_or_show('show', event) def hide_or_show(self, mode, event): pos = self.frameGeometry().topLeft() if mode == 'show' and self.moved: if pos.x() + WINDOW_WEIGHT >= SCREEN_WEIGHT: # 右侧显示 self.startAnimation(SCREEN_WEIGHT - WINDOW_WEIGHT + 2, pos.y()) event.accept() self.moved = False elif pos.x() <= 0: # 左侧显示 self.startAnimation(0,pos.y()) event.accept() self.moved = False elif pos.y() <= 0: # 顶层显示 self.startAnimation(pos.x(),0) event.accept() self.moved = False elif mode == 'hide': if pos.x() + WINDOW_WEIGHT >= SCREEN_WEIGHT: # 右侧隐藏 self.startAnimation(SCREEN_WEIGHT - 2,pos.y()) event.accept() self.moved = True elif pos.x() <= 2: # 左侧隐藏 self.startAnimation(2 - WINDOW_WEIGHT,pos.y()) event.accept() self.moved = True elif pos.y() <= 2: # 顶层隐藏 self.startAnimation(pos.x(),2 - WINDOW_HEIGHT) event.accept() self.moved = True def startAnimation(self,width,height): animation = QPropertyAnimation(self,b"geometry",self) startpos = self.geometry() animation.setDuration(200) newpos = QRect(width,height,startpos.width(),startpos.height()) animation.setEndValue(newpos) animation.start()if __name__ == "__main__": app = QApplication(sys.argv) ui = Ui_Form() sys.exit(app.exec_())

总结

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