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,random
from PyQt5.QtGui import QPalette,QColor
from PyQt5.QtWidgets import QWidget,QVBoxLayout,QPushButton,\
QDesktopWidget,QApplication
from PyQt5.QtCore import Qt,QRect,QEvent,QPoint
from PyQt5.Qt import QCursor,QPropertyAnimation
SCREEN_WEIGHT = 1920
SCREEN_HEIGHT = 1080
WINDOW_WEIGHT = 300
WINDOW_HEIGHT = 600
class 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_())
