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GUI编程Pyqt5之windows窗口代码碎片

Pyqt5之windows窗口代码碎片

      • 1)设置窗口风格
      • 2)设置窗口样式
      • 3)用代码设置窗口的最大化和最小化
      • 4)实现绘图应用
      • 5)QSS基础
      • 6)使用QSS选择器设置控件样式
      • 7)QSS子控件选择器
      • 8)QDarkStyleSheet样式
      • 9)使用多种方式设置窗口背景色和背景图片
      • 10)实现不规则窗口（异形窗口）
      • 11)移动和关闭不规则窗口
      • 12)不规则窗体的动画实现
      • 13)装载Gif动画
      • 14)使用QSS为标签和按钮添加背景图
      • 15)缩放图片
      • 16)创建透明窗口
      • 17)装载QSS文件
      • 18)用动画效果改变窗口尺寸
      • 19)用动画效果一不同速度移动窗口

1)设置窗口风格 

'''

窗口、绘图与特效：设置窗口风格

设置窗口中控件的风格

QApplication.setStyle(...)

'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5 import QtCore
from PyQt5.QtGui  import *

class WindowStyle(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle('设置窗口风格')
        horizontalLayout = QHBoxLayout()
        self.styleLabel = QLabel('设置窗口风格：')
        self.styleComboBox = QComboBox()
        self.styleComboBox.addItems(QStyleFactory.keys())

        # 获取当前窗口的风格
        print(QApplication.style().objectName())
        index = self.styleComboBox.findText(QApplication.style().objectName(),QtCore.Qt.MatchFixedString)

        self.styleComboBox.setCurrentIndex(index)

        self.styleComboBox.activated[str].connect(self.handleStyleChanged)
        horizontalLayout.addWidget(self.styleLabel)
        horizontalLayout.addWidget(self.styleComboBox)
        self.setLayout(horizontalLayout)
    def handleStyleChanged(self,style):
        QApplication.setStyle(style)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = WindowStyle()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

2)设置窗口样式 

'''

设置窗口样式（主要是窗口边框、标题栏以及窗口本身的样式）

'''

from PyQt5.QtCore import *
import sys
from PyQt5.QtWidgets import *

class WindowPattern(QMainWindow):
    def __init__(self):
        super().__init__()
        self.resize(500,260)
        self.setWindowTitle('设置窗口的样式')

        self.setWindowFlags(Qt.WindowMaximizeButtonHint | Qt.WindowStaysOnTopHint )
        self.setObjectName("MainWindow")
        self.setStyleSheet("#MainWindow{border-image:url(images/python.jpg);}")

if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = WindowPattern()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

3)用代码设置窗口的最大化和最小化 

'''
用代码控制窗口的最大化和最小化

'''


import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *


### 自定义窗口类
class WindowMaxMin(QWidget):


    ###  构造函数
    def __init__(self, parent=None):
        '''构造函数'''
        # 调用父类构造函数
        super(WindowMaxMin, self).__init__(parent)
        self.resize(300,400)
        self.setWindowTitle("用代码控制窗口的最大化和最小化")
        self.setWindowFlags(Qt.WindowMaximizeButtonHint)

        layout = QVBoxLayout()
        maxButton1 = QPushButton()
        maxButton1.setText('窗口最大化1')
        maxButton1.clicked.connect(self.maximized1)


        maxButton2 = QPushButton()
        maxButton2.setText('窗口最大化2')
        maxButton2.clicked.connect(self.showMaximized)

        minButton = QPushButton()
        minButton.setText('窗口最小化')
        minButton.clicked.connect(self.showMinimized)


        layout.addWidget(maxButton1)
        layout.addWidget(maxButton2)
        layout.addWidget(minButton)
        self.setLayout(layout)



    def maximized1(self):
        desktop = QApplication.desktop()
        # 获取桌面可用尺寸
        rect = desktop.availableGeometry()

        self.setGeometry(rect)



if __name__ == "__main__":

    app = QApplication(sys.argv)

    window = WindowMaxMin()
    window.show()
    # 应用程序事件循环
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

4)实现绘图应用 

'''

项目实战：实现绘图应用

需要解决3个核心内容
1. 如何绘图

在paintEvent方法中绘图，通过调用update方法触发painEvent的调用


2. 在哪里绘图

在白色背景的QPixmap对象中绘图

3. 如何通过移动鼠标进行绘图

鼠标拥有3个事件：
（1）鼠标按下：mousePressEvent
（2）鼠标移动：mouseMoveEvent
（3）鼠标抬起：mouseReleaseEvent

'''

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QPainter, QPixmap
from PyQt5.QtCore import Qt, QPoint


class Drawing(QWidget):
    def __init__(self, parent=None):
        super(Drawing, self).__init__(parent)
        self.setWindowTitle("绘图应用")
        self.pix = QPixmap()
        self.lastPoint = QPoint()
        self.endPoint = QPoint()
        self.initUi()

    def initUi(self):

        self.resize(600, 600)
        # 画布大小为400*400，背景为白色
        self.pix = QPixmap(600, 600)
        self.pix.fill(Qt.white)

    def paintEvent(self, event):
        pp = QPainter(self.pix)
        # 根据鼠标指针前后两个位置绘制直线
        pp.drawLine(self.lastPoint, self.endPoint)
        # 让前一个坐标值等于后一个坐标值，
        # 这样就能实现画出连续的线
        self.lastPoint = self.endPoint
        painter = QPainter(self)
        painter.drawPixmap(0, 0, self.pix)

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.lastPoint = event.pos()

    def mouseMoveEvent(self, event):
        if event.buttons() and Qt.LeftButton:
            self.endPoint = event.pos()
            self.update()

    def mouseReleaseEvent(self, event):
        # 鼠标左键释放
        if event.button() == Qt.LeftButton:
            self.endPoint = event.pos()
            # 进行重新绘制
            self.update()


if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = Drawing()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

5)QSS基础 

'''

QSS基础

QSS（Qt Style Sheets）  层叠样式 类似CSS
Qt样式表

用于设置控件的样式

CSS

'''

from PyQt5.QtWidgets import *
import sys
class BasicQSS(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QSS样式")
        btn1 = QPushButton(self)
        btn1.setText("按钮1")
        btn2 = QPushButton(self)
        btn2.setText("按钮2")

        btn3 = QPushButton(self)
        btn3.setText("按钮3")

        vbox = QVBoxLayout()
        vbox.addWidget(btn1)
        vbox.addWidget(btn2)
        vbox.addWidget(btn3)

        self.setLayout(vbox)
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = BasicQSS()
    # 选择器
    qssStyle = '''
        QPushButton {
            background-color:red
        }
    '''
    form.setStyleSheet(qssStyle)
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

6)使用QSS选择器设置控件样式 

'''

使用QSS选择器设置控件样式

'''

from PyQt5.QtWidgets import *
import sys
import qdarkstyle
class QSSSelector(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QSS样式")
        btn1 = QPushButton(self)
        btn1.setText("按钮1")
        btn2 = QPushButton(self)
        btn2.setProperty('name','btn2')
        btn2.setText("按钮2")

        btn3 = QPushButton(self)
        btn3.setProperty('name','btn3')
        btn3.setText("按钮3")

        vbox = QVBoxLayout()
        vbox.addWidget(btn1)
        vbox.addWidget(btn2)
        vbox.addWidget(btn3)

        self.setLayout(vbox)
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = QSSSelector()
    # 选择器
    qssStyle = '''
        QPushButton[name="btn2"] {
            background-color:red;
            color:yellow;
            height:120;
            font-size:60px;
        }
        QPushButton[name="btn3"] {
            background-color:blue;
            color:yellow;
            height:60;
            font-size:30px;
        }
    '''
    #form.setStyleSheet(qssStyle)
    form.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

7)QSS子控件选择器 

'''

QSS子控件选择器

QComboBox

'''

from PyQt5.QtWidgets import *
import sys

class QSSSubControl(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QSS子控件选择器")
        combo = QComboBox(self)
        combo.setObjectName("myComboBox")
        combo.addItem("Window")
        combo.addItem("Linux")
        combo.addItem("Mac OS X")

        combo.move(50,50)

        self.setGeometry(250,200,320,150)
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = QSSSubControl()
    qssStyle = '''
       QComboBox#myComboBox::drop-down {
           image:url(./images/dropdown.png)
       }
    '''
    form.setStyleSheet(qssStyle)
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

8)QDarkStyleSheet样式 

'''
QDarkStyleSheet样式

conda install qdarkstyle
'''
import logging
import sys
from PyQt5 import QtWidgets, QtCore
# make the example runnable without the need to install
from os.path import abspath, dirname
sys.path.insert(0, abspath(dirname(abspath(__file__)) + '/..'))

import qdarkstyle
import ui.example_pyqt5_ui as example_ui


def main():
    """
    Application entry point
    """
    logging.basicConfig(level=logging.DEBUG)
    # create the application and the main window
    app = QtWidgets.QApplication(sys.argv)
    window = QtWidgets.QMainWindow()

    # setup ui
    ui = example_ui.Ui_MainWindow()
    ui.setupUi(window)
    ui.bt_delay_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_instant_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    ui.bt_menu_button_popup.addActions([
        ui.actionAction,
        ui.actionAction_C
    ])
    item = QtWidgets.QTableWidgetItem("Test")
    item.setCheckState(QtCore.Qt.Checked)
    ui.tableWidget.setItem(0, 0, item)
    window.setWindowTitle("QDarkStyle example")

    # tabify dock widgets to show bug #6
    window.tabifyDockWidget(ui.dockWidget1, ui.dockWidget2)

    # setup stylesheet
    print(qdarkstyle.load_stylesheet_pyqt5())
    app.setStyleSheet(qdarkstyle.load_stylesheet_pyqt5())

    # auto quit after 2s when testing on travis-ci
    if "--travis" in sys.argv:
        QtCore.QTimer.singleShot(2000, app.exit)

    # run
    window.show()
    app.exec_()


if __name__ == "__main__":
    main()
GUI编程Pyqt5之windows窗口代码碎片

9)使用多种方式设置窗口背景色和背景图片

QSS

'''

使用多种方式设置窗口背景色和背景图片

1.  QSS
2.  QPalette
3.  直接绘制

'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

app = QApplication(sys.argv)
win = QMainWindow()
win.setWindowTitle("背景图片")
win.resize(350,250)
win.setObjectName("MainWindow")

# 通过QSS动态修改窗口的背景颜色和背景图片
win.setStyleSheet("#MainWindow{border-image:url(./images/python.jpg);}")
# win.setStyleSheet("#MainWindow{background-color:yellow}")


# # 通过QPalette设置背景图片和背景颜色
# palette = QPalette()
# palette.setBrush(QPalette.Background,QBrush(QPixmap("./images/python.jpg")))
# palette.setColor(QPalette.Background,Qt.red)
# win.setPalette(palette)

win.show()
sys.exit(app.exec())
GUI编程Pyqt5之windows窗口代码碎片

QPalette

'''

使用多种方式设置窗口背景色和背景图片

1.  QSS
2.  QPalette
3.  直接绘制

'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

app = QApplication(sys.argv)
win = QMainWindow()
win.setWindowTitle("背景图片")
win.resize(350,250)
win.setObjectName("MainWindow")

# 通过QSS动态修改窗口的背景颜色和背景图片
# win.setStyleSheet("#MainWindow{border-image:url(./images/python.jpg);}")
# win.setStyleSheet("#MainWindow{background-color:yellow}")


# # 通过QPalette设置背景图片和背景颜色
palette = QPalette()
palette.setBrush(QPalette.Background,QBrush(QPixmap("./images/python.jpg")))
# palette.setColor(QPalette.Background,Qt.red)
win.setPalette(palette)

win.show()
sys.exit(app.exec())
GUI编程Pyqt5之windows窗口代码碎片

直接绘制

'''

使用多种方式设置窗口背景色和背景图片

1.  QSS
2.  QPalette
3.  直接绘制

'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class Background1(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("绘制背景颜色")
    def paintEvent(self, event):
        painter = QPainter(self)
        painter.setBrush(Qt.yellow)
        painter.drawRect(self.rect())
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = Background1()

    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片
'''

使用多种方式设置窗口背景色和背景图片

1.  QSS
2.  QPalette
3.  直接绘制

'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class Background2(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("绘制背景图片")
    def paintEvent(self, event):
        painter = QPainter(self)
        pixmap = QPixmap('./images/screen1.jpg')

        painter.drawPixmap(self.rect(),pixmap)
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = Background2()

    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

10)实现不规则窗口（异形窗口） 

'''

实现不规则窗口（异形窗口）

通过mask实现异形窗口

需要一张透明的png图，透明部分被扣出，形成一个非矩形的区域


移动和关闭不规则窗口
'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class AbnormityWindow(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("异形窗口")
        self.pix = QBitmap('./images/mask.png')
        self.resize(self.pix.size())
        self.setMask(self.pix)

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_drag = True

            self.m_DragPosition = event.globalPos() - self.pos()
            self.setCursor(QCursor(Qt.OpenHandCursor))
            print(event.globalPos())  #
            print(event.pos())
            print(self.pos())
        if event.button() == Qt.RightButton:
            self.close()

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_drag:
            # 当左键移动窗体修改偏移值
            # QPoint
            # 实时计算窗口左上角坐标
            self.move(QMouseEvent.globalPos() - self.m_DragPosition)


    def mouseReleaseEvent(self, QMouseEvent):
        self.m_drag = False
        self.setCursor(QCursor(Qt.ArrowCursor))
    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(0,0,self.pix.width(),self.pix.height(),QPixmap('./images/screen1.jpg'))
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = AbnormityWindow()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

11)移动和关闭不规则窗口 

'''

实现不规则窗口（异形窗口）

通过mask实现异形窗口

需要一张透明的png图，透明部分被扣出，形成一个非矩形的区域


移动和关闭不规则窗口
'''

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *

class AbnormityWindow(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("异形窗口")
        self.pix = QBitmap('./images/mask.png')
        self.resize(self.pix.size())
        self.setMask(self.pix)

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_drag = True

            self.m_DragPosition = event.globalPos() - self.pos()
            self.setCursor(QCursor(Qt.OpenHandCursor))
            print(event.globalPos())  #
            print(event.pos())
            print(self.pos())
        if event.button() == Qt.RightButton:
            self.close()

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_drag:
            # 当左键移动窗体修改偏移值
            # QPoint
            # 实时计算窗口左上角坐标
            self.move(QMouseEvent.globalPos() - self.m_DragPosition)


    def mouseReleaseEvent(self, QMouseEvent):
        self.m_drag = False
        self.setCursor(QCursor(Qt.ArrowCursor))
    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(0,0,self.pix.width(),self.pix.height(),QPixmap('./images/screen1.jpg'))
if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = AbnormityWindow()
    form.show()
    sys.exit(app.exec_())

12)不规则窗体的动画实现 

'''
不规则窗体的动画实现

'''

import sys
from PyQt5.QtWidgets import QApplication, QWidget
from PyQt5.QtGui import QPixmap, QPainter, QCursor
from PyQt5.QtCore import Qt, QTimer


class AnimationWindows(QWidget):
    def __init__(self, parent=None):
        super(AnimationWindows, self).__init__(parent)
        self.i = 1
        self.mypix()
        self.timer = QTimer()
        self.timer.setInterval(500)  # 500毫秒
        self.timer.timeout.connect(self.timeChange)
        self.timer.start()

    # 显示不规则 pic
    def mypix(self):
        self.update()
        if self.i == 5:
            self.i = 1
        self.mypic = {1: './images/left.png', 2: "./images/up.png", 3: './images/right.png', 4: './images/down.png'}
        self.pix = QPixmap(self.mypic[self.i])
        self.resize(self.pix.size())
        self.setMask(self.pix.mask())
        self.dragPosition = None

    def mousePressEvent(self, event):
        if event.button() == Qt.LeftButton:
            self.m_drag = True
            self.m_DragPosition = event.globalPos() - self.pos()

            self.setCursor(QCursor(Qt.OpenHandCursor))

    def mouseMoveEvent(self, QMouseEvent):
        if Qt.LeftButton and self.m_drag:
            self.move(QMouseEvent.globalPos() - self.m_DragPosition)


    def mouseReleaseEvent(self, QMouseEvent):
        self.m_drag = False
        self.setCursor(QCursor(Qt.ArrowCursor))

    def paintEvent(self, event):
        painter = QPainter(self)
        painter.drawPixmap(0, 0, self.pix.width(), self.pix.height(), self.pix)

    # 鼠标双击事件
    def mouseDoubleClickEvent(self, event):
        if event.button() == 1:
            self.i += 1
            self.mypix()

    # 每500毫秒修改paint
    def timeChange(self):
        self.i += 1
        self.mypix()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    form = AnimationWindows()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片
GUI编程Pyqt5之windows窗口代码碎片

13)装载Gif动画 

'''

装载Gif动画

QMovie
'''

import sys
from PyQt5.QtWidgets import QApplication,  QLabel  ,QWidget
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QMovie

class LoadingGif(QWidget):
    def __init__(self):
        super().__init__()
        self.label = QLabel("",self)
        self.setFixedSize(128,128)
        self.setWindowFlags(Qt.Dialog | Qt.CustomizeWindowHint)
        self.movie = QMovie('./images/loading.gif')
        self.label.setMovie(self.movie)
        self.movie.start()

if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = LoadingGif()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

14)使用QSS为标签和按钮添加背景图 

'''

使用QSS为标签和按钮添加背景图

'''

from PyQt5.QtWidgets import *
import sys

class LabelButtonBackground(QWidget):
    def __init__(self):
        super().__init__()
        label1 = QLabel(self)
        label1.setToolTip('这是一个文本标签')
        label1.setStyleSheet('QLabel{border-image:url(./images/python.jpg);}')

        label1.setFixedWidth(476)
        label1.setFixedHeight(259)

        btn1 = QPushButton(self)
        btn1.setObjectName('btn1')
        btn1.setMaximumSize(48,48)
        btn1.setMinimumSize(48,48)

        style = '''
        
            #btn1{
                border-radius:4px;
                background-image:url('./images/add.png');
            }
            #btn1:Pressed {
                background-image:url('./images/addhover.png');
            }
        '''
        btn1.setStyleSheet(style)

        vbox = QVBoxLayout()
        vbox.addWidget(label1)
        vbox.addStretch()
        vbox.addWidget(btn1)

        self.setLayout(vbox)
        self.setWindowTitle('使用QSS为标签和按钮添加背景图')


if __name__ == "__main__":
    app = QApplication(sys.argv)
    form = LabelButtonBackground()
    form.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

15)缩放图片 

'''

缩放图片

QImage.scaled

'''

from PyQt5.QtWidgets import QApplication, QLabel, QWidget, QVBoxLayout
from PyQt5.QtGui import QImage, QPixmap
from PyQt5.QtCore import Qt
import sys


class ScaleImage(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("图片大小缩放例子")
        filename = './images/Cloudy_72px.png'
        img = QImage(filename)
        label1 = QLabel(self)
        label1.setFixedWidth(200)
        label1.setFixedHeight(200)

        result = img.scaled(label1.width(),label1.height(),Qt.IgnoreAspectRatio,Qt.SmoothTransformation)
        label1.setPixmap(QPixmap.fromImage(result))

        vbox = QVBoxLayout()
        vbox.addWidget(label1)

        self.setLayout(vbox)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = ScaleImage()
    win.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片

16)创建透明窗口 

'''

创建透明窗口

'''

from PyQt5.Qt import *
import sys

if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = QMainWindow()
    win.setWindowTitle('窗口的透明度设置')
    # 0到1，1表示不透明，0表示完全透明
    win.setWindowOpacity(0.6)

    button = QPushButton('我的按钮',win)

    win.resize(400,200)
    win.show()
    sys.exit(app.exec())
GUI编程Pyqt5之windows窗口代码碎片

17)装载QSS文件 

'''

装载QSS文件

'''

import sys
from PyQt5.QtWidgets import *
from CommonHelper import CommonHelper

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.resize(477, 258)
        self.setWindowTitle("加载QSS文件")
        btn = QPushButton()
        btn.setText('装载QSS文件')
        btn.setToolTip('提示文本')

        vbox = QVBoxLayout()
        vbox.addWidget(btn)
        btn.clicked.connect(self.onClick)
        self.setLayout(vbox)

        widget  = QWidget(self)
        self.setCentralWidget(widget)
        widget.setLayout(vbox)

    def onClick(self):
        styleFile = './style.qss'
        qssStyle = CommonHelper.readQSS(styleFile)
        win.setStyleSheet(qssStyle)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = MainWindow()

    win.show()
    sys.exit(app.exec_())

style.qss

QMainWindow{
    border-image:url(./images/python.jpg);
}

QToolTip {
   border:1px solid rgb(45,45,45);
   background:white;
   color:red
}
GUI编程Pyqt5之windows窗口代码碎片

18)用动画效果改变窗口尺寸 

'''

用动画效果改变窗口尺寸


QPropertyAnimation




'''

from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
import sys


class AnimWindow(QWidget):
    def __init__(self):
        super(AnimWindow, self).__init__()
        self.OrigHeight = 50
        self.ChangeHeight = 150
        self.setGeometry(QRect(500, 400, 150, self.OrigHeight))
        self.btn = QPushButton('展开', self)
        self.btn.setGeometry(10, 10, 60, 35)
        self.btn.clicked.connect(self.change)
    def change(self):
        currentHeight = self.height()
        if self.OrigHeight == currentHeight:
            startHeight = self.OrigHeight
            endHeight = self.ChangeHeight
            self.btn.setText('收缩')
        else:
            startHeight = self.ChangeHeight
            endHeight= self.OrigHeight
            self.btn.setText('展开')

        self.animation = QPropertyAnimation(self,b'geometry')
        self.animation.setDuration(500)
        self.animation.setStartValue(QRect(500,400,150,startHeight))
        self.animation.setEndValue(QRect(500,400,150,endHeight))
        self.animation.start()



if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = AnimWindow()
    window.show()
    sys.exit(app.exec_())
GUI编程Pyqt5之windows窗口代码碎片
GUI编程Pyqt5之windows窗口代码碎片

19)用动画效果一不同速度移动窗口 

'''

用动画效果一不同速度移动窗口

'''

from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
import sys

app = QApplication(sys.argv)

window1 = QMainWindow()
window1.show()
window2 = QMainWindow()
window2.show()

animation1 = QPropertyAnimation(window1, b'geometry')
animation2 = QPropertyAnimation(window2, b'geometry')

group = QParallelAnimationGroup()  # 并行
group = QSequentialAnimationGroup()  # 串行

group.addAnimation(animation1)
group.addAnimation(animation2)

animation1.setDuration(3000)
animation1.setStartValue(QRect(0,0,100,30))
animation1.setEndValue(QRect(250,250,100,30))
animation1.setEasingCurve(QEasingCurve.OutBounce)

animation2.setDuration(4000)
animation2.setStartValue(QRect(250,150,100,30))
animation2.setEndValue(QRect(850,250,100,30))
animation2.setEasingCurve(QEasingCurve.CosineCurve)

group.start()

sys.exit(app.exec())
GUI编程Pyqt5之windows窗口代码碎片
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