Python PySide/PyQt覆盖小部件
我试图在PySide中实现以下目标: 我想做的是创建一个下面有黑色覆盖层的无框子窗口 我没有成功地创建一个子窗口无框和覆盖 这是复制HTML的基本代码:Python PySide/PyQt覆盖小部件,python,pyqt,pyside,Python,Pyqt,Pyside,我试图在PySide中实现以下目标: 我想做的是创建一个下面有黑色覆盖层的无框子窗口 我没有成功地创建一个子窗口无框和覆盖 这是复制HTML的基本代码: from PySide import QtCore, QtGui import sys class MainWindow(QtGui.QWidget): def __init__(self): QtGui.QWidget.__init__(self) self.resize(800, 500)
from PySide import QtCore, QtGui
import sys
class MainWindow(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.resize(800, 500)
self.button = QtGui.QPushButton("Click Me")
self.setLayout(QtGui.QVBoxLayout())
self.layout().addWidget(self.button)
# Connections
self.button.clicked.connect(self.displayOverlay)
def displayOverlay(self):
popup = QtGui.QDialog(self)
popup.setWindowFlags(QtCore.Qt.FramelessWindowHint)
popup.setLayout(QtGui.QHBoxLayout())
popup.layout().addWidget(QtGui.QLabel("HI"))
popup.show()
print "clicked"
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
如果您用无框架swindowhint注释该行,窗口将出现,否则不会发生任何事情
我真的希望有人能帮助我。感谢您花时间阅读我的问题。您是否尝试将
popup.show()
替换为popup.exec()
?并将self作为Qdialog的参数删除?我将QDialog更改为QmessageBox,以便能够退出子窗口,但它仍然可以与QDialog一起工作
popup = QMessageBox()
popup.setWindowFlags( Qt.FramelessWindowHint)
popup.setLayout( QHBoxLayout())
popup.layout().addWidget( QLabel("HI"))
popup.exec_()
更新
多亏了阿玛蒂塔,我成功地得到了我想要的。现在,有一些问题,但它是有效的,我得到了我想要的结果 我把代码给下一个要找同样东西的人
from PySide import QtCore, QtGui
import sys
class CtmWidget(QtGui.QWidget):
def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
self.button = QtGui.QPushButton("Close Overlay")
self.setLayout(QtGui.QHBoxLayout())
self.layout().addWidget(self.button)
self.button.clicked.connect(self.hideOverlay)
def paintEvent(self, event):
painter = QtGui.QPainter()
painter.begin(self)
painter.setRenderHint(QtGui.QPainter.Antialiasing)
path = QtGui.QPainterPath()
path.addRoundedRect(QtCore.QRectF(self.rect()), 10, 10)
mask = QtGui.QRegion(path.toFillPolygon().toPolygon())
pen = QtGui.QPen(QtCore.Qt.white, 1)
painter.setPen(pen)
painter.fillPath(path, QtCore.Qt.white)
painter.drawPath(path)
painter.end()
def hideOverlay(self):
self.parent().hide()
class Overlay(QtGui.QWidget):
def __init__(self, parent, widget):
QtGui.QWidget.__init__(self, parent)
palette = QtGui.QPalette(self.palette())
palette.setColor(palette.Background, QtCore.Qt.transparent)
self.setPalette(palette)
self.widget = widget
self.widget.setParent(self)
def paintEvent(self, event):
painter = QtGui.QPainter()
painter.begin(self)
painter.setRenderHint(QtGui.QPainter.Antialiasing)
painter.fillRect(event.rect(), QtGui.QBrush(QtGui.QColor(0, 0, 0, 127)))
painter.end()
def resizeEvent(self, event):
position_x = (self.frameGeometry().width()-self.widget.frameGeometry().width())/2
position_y = (self.frameGeometry().height()-self.widget.frameGeometry().height())/2
self.widget.move(position_x, position_y)
event.accept()
class MainWindow(QtGui.QWidget):
def __init__(self):
QtGui.QWidget.__init__(self)
self.resize(800, 500)
self.button = QtGui.QPushButton("Click Me")
self.setLayout(QtGui.QVBoxLayout())
self.layout().addWidget(self.button)
self.popup = Overlay(self, CtmWidget())
self.popup.hide()
# Connections
self.button.clicked.connect(self.displayOverlay)
def displayOverlay(self):
self.popup.show()
print "clicked"
def resizeEvent(self, event):
self.popup.resize(event.size())
event.accept()
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
window = MainWindow()
window.show()
sys.exit(app.exec_())
再次感谢你们两位(ymmx和armatita)花时间讨论我的问题。我将用这个解释。它可能与PySide(我不确定它是否仍然保持)和PyQt4有些不同,但转换起来应该不会太难
下面的示例有一个包含几个按钮的父窗口小部件。其中一个(明显的一个)调用弹出窗口。我已经准备了一个示例来处理父级调整大小,但是没有编写任何关于拖动弹出窗口的鼠标事件的代码(请参见mouseMoveEvent
和mousereleasevent
)
下面是代码:
import sys
from PyQt5 import QtWidgets, QtCore, QtGui
class TranslucentWidgetSignals(QtCore.QObject):
# SIGNALS
CLOSE = QtCore.pyqtSignal()
class TranslucentWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(TranslucentWidget, self).__init__(parent)
# make the window frameless
self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
self.setAttribute(QtCore.Qt.WA_TranslucentBackground)
self.fillColor = QtGui.QColor(30, 30, 30, 120)
self.penColor = QtGui.QColor("#333333")
self.popup_fillColor = QtGui.QColor(240, 240, 240, 255)
self.popup_penColor = QtGui.QColor(200, 200, 200, 255)
self.close_btn = QtWidgets.QPushButton(self)
self.close_btn.setText("x")
font = QtGui.QFont()
font.setPixelSize(18)
font.setBold(True)
self.close_btn.setFont(font)
self.close_btn.setStyleSheet("background-color: rgb(0, 0, 0, 0)")
self.close_btn.setFixedSize(30, 30)
self.close_btn.clicked.connect(self._onclose)
self.SIGNALS = TranslucentWidgetSignals()
def resizeEvent(self, event):
s = self.size()
popup_width = 300
popup_height = 120
ow = int(s.width() / 2 - popup_width / 2)
oh = int(s.height() / 2 - popup_height / 2)
self.close_btn.move(ow + 265, oh + 5)
def paintEvent(self, event):
# This method is, in practice, drawing the contents of
# your window.
# get current window size
s = self.size()
qp = QtGui.QPainter()
qp.begin(self)
qp.setRenderHint(QtGui.QPainter.Antialiasing, True)
qp.setPen(self.penColor)
qp.setBrush(self.fillColor)
qp.drawRect(0, 0, s.width(), s.height())
# drawpopup
qp.setPen(self.popup_penColor)
qp.setBrush(self.popup_fillColor)
popup_width = 300
popup_height = 120
ow = int(s.width()/2-popup_width/2)
oh = int(s.height()/2-popup_height/2)
qp.drawRoundedRect(ow, oh, popup_width, popup_height, 5, 5)
font = QtGui.QFont()
font.setPixelSize(18)
font.setBold(True)
qp.setFont(font)
qp.setPen(QtGui.QColor(70, 70, 70))
tolw, tolh = 80, -5
qp.drawText(ow + int(popup_width/2) - tolw, oh + int(popup_height/2) - tolh, "Yep, I'm a pop up.")
qp.end()
def _onclose(self):
print("Close")
self.SIGNALS.CLOSE.emit()
class ParentWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ParentWidget, self).__init__(parent)
self._popup = QtWidgets.QPushButton("Gimme Popup!!!")
self._popup.setFixedSize(150, 40)
self._popup.clicked.connect(self._onpopup)
self._other1 = QtWidgets.QPushButton("A button")
self._other2 = QtWidgets.QPushButton("A button")
self._other3 = QtWidgets.QPushButton("A button")
self._other4 = QtWidgets.QPushButton("A button")
hbox = QtWidgets.QHBoxLayout()
hbox.addWidget(self._popup)
hbox.addWidget(self._other1)
hbox.addWidget(self._other2)
hbox.addWidget(self._other3)
hbox.addWidget(self._other4)
self.setLayout(hbox)
self._popframe = None
self._popflag = False
def resizeEvent(self, event):
if self._popflag:
self._popframe.move(0, 0)
self._popframe.resize(self.width(), self.height())
def _onpopup(self):
self._popframe = TranslucentWidget(self)
self._popframe.move(0, 0)
self._popframe.resize(self.width(), self.height())
self._popframe.SIGNALS.CLOSE.connect(self._closepopup)
self._popflag = True
self._popframe.show()
def _closepopup(self):
self._popframe.close()
self._popflag = False
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
main = ParentWidget()
main.resize(500, 500)
main.show()
sys.exit(app.exec_())
其结果如下:
逻辑如下。创建一个空的小部件并手动绘制背景和弹出窗口(paintEvent)。您可以添加一个按钮来关闭弹出窗口。为此,您构建了一个信号,并让父窗口小部件完成关闭。这很重要,因为您需要让父窗口小部件控制弹出窗口的一些重要元素(如关闭、调整大小等)。您可以增加更多的复杂性,但希望这个示例能够满足初学者的需要。好的开始,问题是我不能删除它、移动它(使用代码,跟随主窗口)或创建其他内容……您不能拖动或关闭窗口,因为您使用了以下属性:popup。
setWindowFlags(Qt.FramelessWindowHint)
如果要拖动或其他属性,必须全部指定。要拖动弹出窗口,我认为您必须创建一个新类,并按照此处的建议添加MousePresseEvent和mousemoveevent。我知道我不能拖动它,因为没有标题栏可以拖动,但我在注释中指定了我尝试使用的代码,因此它应该与代码一起使用,以完成一个简单的弹出窗口。移动(我想要的位置)完全复制Codepen示例是可能的,但它比简单示例上的两条指令要复杂一些。构建一个QWidget并使用无框架SwindowHint设置它。重载paintEvent以绘制半透明背景(嗯,可能需要WA_半透明背景)。此小部件将完全覆盖父对象,因此也会绘制弹出框(QPaint中的drawRect)。在无布局的正确位置添加按钮。重载调整大小以确保按钮始终处于正确位置。重载“父级调整大小”以在打开时自动调整弹出窗口的大小。今天不好,但如果我看到您无法获得问题的答案,我将举一个小示例,使我的解释更清楚一些。祝你好运。哇,谢谢你的解释,我从来没有看过画家,所以对我来说它很模糊。。。我会试试你说的,但我也会得到你的例子,当你发布它:)谢谢!paintEvent只是一种手动控制小部件视觉效果的方法。在这种特殊情况下,您可以使用它诱使用户看到一个禁用的变暗的父窗口小部件和一个可爱的弹出窗口。我在推荐信中添加了一个片段。希望这足以让你开始。
import sys
from PyQt5 import QtWidgets, QtCore, QtGui
class TranslucentWidgetSignals(QtCore.QObject):
# SIGNALS
CLOSE = QtCore.pyqtSignal()
class TranslucentWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(TranslucentWidget, self).__init__(parent)
# make the window frameless
self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
self.setAttribute(QtCore.Qt.WA_TranslucentBackground)
self.fillColor = QtGui.QColor(30, 30, 30, 120)
self.penColor = QtGui.QColor("#333333")
self.popup_fillColor = QtGui.QColor(240, 240, 240, 255)
self.popup_penColor = QtGui.QColor(200, 200, 200, 255)
self.close_btn = QtWidgets.QPushButton(self)
self.close_btn.setText("x")
font = QtGui.QFont()
font.setPixelSize(18)
font.setBold(True)
self.close_btn.setFont(font)
self.close_btn.setStyleSheet("background-color: rgb(0, 0, 0, 0)")
self.close_btn.setFixedSize(30, 30)
self.close_btn.clicked.connect(self._onclose)
self.SIGNALS = TranslucentWidgetSignals()
def resizeEvent(self, event):
s = self.size()
popup_width = 300
popup_height = 120
ow = int(s.width() / 2 - popup_width / 2)
oh = int(s.height() / 2 - popup_height / 2)
self.close_btn.move(ow + 265, oh + 5)
def paintEvent(self, event):
# This method is, in practice, drawing the contents of
# your window.
# get current window size
s = self.size()
qp = QtGui.QPainter()
qp.begin(self)
qp.setRenderHint(QtGui.QPainter.Antialiasing, True)
qp.setPen(self.penColor)
qp.setBrush(self.fillColor)
qp.drawRect(0, 0, s.width(), s.height())
# drawpopup
qp.setPen(self.popup_penColor)
qp.setBrush(self.popup_fillColor)
popup_width = 300
popup_height = 120
ow = int(s.width()/2-popup_width/2)
oh = int(s.height()/2-popup_height/2)
qp.drawRoundedRect(ow, oh, popup_width, popup_height, 5, 5)
font = QtGui.QFont()
font.setPixelSize(18)
font.setBold(True)
qp.setFont(font)
qp.setPen(QtGui.QColor(70, 70, 70))
tolw, tolh = 80, -5
qp.drawText(ow + int(popup_width/2) - tolw, oh + int(popup_height/2) - tolh, "Yep, I'm a pop up.")
qp.end()
def _onclose(self):
print("Close")
self.SIGNALS.CLOSE.emit()
class ParentWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ParentWidget, self).__init__(parent)
self._popup = QtWidgets.QPushButton("Gimme Popup!!!")
self._popup.setFixedSize(150, 40)
self._popup.clicked.connect(self._onpopup)
self._other1 = QtWidgets.QPushButton("A button")
self._other2 = QtWidgets.QPushButton("A button")
self._other3 = QtWidgets.QPushButton("A button")
self._other4 = QtWidgets.QPushButton("A button")
hbox = QtWidgets.QHBoxLayout()
hbox.addWidget(self._popup)
hbox.addWidget(self._other1)
hbox.addWidget(self._other2)
hbox.addWidget(self._other3)
hbox.addWidget(self._other4)
self.setLayout(hbox)
self._popframe = None
self._popflag = False
def resizeEvent(self, event):
if self._popflag:
self._popframe.move(0, 0)
self._popframe.resize(self.width(), self.height())
def _onpopup(self):
self._popframe = TranslucentWidget(self)
self._popframe.move(0, 0)
self._popframe.resize(self.width(), self.height())
self._popframe.SIGNALS.CLOSE.connect(self._closepopup)
self._popflag = True
self._popframe.show()
def _closepopup(self):
self._popframe.close()
self._popflag = False
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication(sys.argv)
main = ParentWidget()
main.resize(500, 500)
main.show()
sys.exit(app.exec_())