[英]How to create a tiny no titlebar notification window using QML and PyQt5
[英]Custom Titlebar with frame in PyQt5
我正在为 Windows/Linux 开发一个开源 markdown 支持的最小笔记记录应用程序。 我正在尝试删除标题栏并添加我自己的按钮。 我想要一个只有两个自定义按钮的标题栏,如图所示
目前我有这个:
我试过修改 window 标志:
self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
, window 没有边框,但无法移动或调整 window 的大小self.setWindowFlags(QtCore.Qt.CustomizeWindowHint)
,window 可以调整大小但不能移动,也无法摆脱 window 顶部的白色部分。任何帮助表示赞赏。 您可以在此处找到有关 GitHub 的项目。
谢谢..
这是我的 python 代码:
from PyQt5 import QtCore, QtWidgets, QtWebEngineWidgets, uic
import sys
import os
import markdown2 # https://github.com/trentm/python-markdown2
from PyQt5.QtCore import QRect
from PyQt5.QtGui import QFont
simpleUiForm = uic.loadUiType("Simple.ui")[0]
class SimpleWindow(QtWidgets.QMainWindow, simpleUiForm):
def __init__(self, parent=None):
QtWidgets.QMainWindow.__init__(self, parent)
self.setupUi(self)
self.markdown = markdown2.Markdown()
self.css = open(os.path.join("css", "default.css")).read()
self.editNote.setPlainText("")
#self.noteView = QtWebEngineWidgets.QWebEngineView(self)
self.installEventFilter(self)
self.displayNote.setContextMenuPolicy(QtCore.Qt.NoContextMenu)
#self.setWindowFlags(QtCore.Qt.FramelessWindowHint)
def eventFilter(self, object, event):
if event.type() == QtCore.QEvent.WindowActivate:
print("widget window has gained focus")
self.editNote.show()
self.displayNote.hide()
elif event.type() == QtCore.QEvent.WindowDeactivate:
print("widget window has lost focus")
note = self.editNote.toPlainText()
htmlNote = self.getStyledPage(note)
# print(note)
self.editNote.hide()
self.displayNote.show()
# print(htmlNote)
self.displayNote.setHtml(htmlNote)
elif event.type() == QtCore.QEvent.FocusIn:
print("widget has gained keyboard focus")
elif event.type() == QtCore.QEvent.FocusOut:
print("widget has lost keyboard focus")
return False
UI 文件在以下层次结构中创建
以下是您必须遵循的步骤:
这是一个带有移动和按钮实现的小示例。 您仍然应该使用相同的逻辑来实现调整大小。
import sys
from PyQt5.QtCore import QPoint
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QHBoxLayout
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
class MainWindow(QWidget):
def __init__(self):
super(MainWindow, self).__init__()
self.layout = QVBoxLayout()
self.layout.addWidget(MyBar(self))
self.setLayout(self.layout)
self.layout.setContentsMargins(0,0,0,0)
self.layout.addStretch(-1)
self.setMinimumSize(800,400)
self.setWindowFlags(Qt.FramelessWindowHint)
self.pressing = False
class MyBar(QWidget):
def __init__(self, parent):
super(MyBar, self).__init__()
self.parent = parent
print(self.parent.width())
self.layout = QHBoxLayout()
self.layout.setContentsMargins(0,0,0,0)
self.title = QLabel("My Own Bar")
btn_size = 35
self.btn_close = QPushButton("x")
self.btn_close.clicked.connect(self.btn_close_clicked)
self.btn_close.setFixedSize(btn_size,btn_size)
self.btn_close.setStyleSheet("background-color: red;")
self.btn_min = QPushButton("-")
self.btn_min.clicked.connect(self.btn_min_clicked)
self.btn_min.setFixedSize(btn_size, btn_size)
self.btn_min.setStyleSheet("background-color: gray;")
self.btn_max = QPushButton("+")
self.btn_max.clicked.connect(self.btn_max_clicked)
self.btn_max.setFixedSize(btn_size, btn_size)
self.btn_max.setStyleSheet("background-color: gray;")
self.title.setFixedHeight(35)
self.title.setAlignment(Qt.AlignCenter)
self.layout.addWidget(self.title)
self.layout.addWidget(self.btn_min)
self.layout.addWidget(self.btn_max)
self.layout.addWidget(self.btn_close)
self.title.setStyleSheet("""
background-color: black;
color: white;
""")
self.setLayout(self.layout)
self.start = QPoint(0, 0)
self.pressing = False
def resizeEvent(self, QResizeEvent):
super(MyBar, self).resizeEvent(QResizeEvent)
self.title.setFixedWidth(self.parent.width())
def mousePressEvent(self, event):
self.start = self.mapToGlobal(event.pos())
self.pressing = True
def mouseMoveEvent(self, event):
if self.pressing:
self.end = self.mapToGlobal(event.pos())
self.movement = self.end-self.start
self.parent.setGeometry(self.mapToGlobal(self.movement).x(),
self.mapToGlobal(self.movement).y(),
self.parent.width(),
self.parent.height())
self.start = self.end
def mouseReleaseEvent(self, QMouseEvent):
self.pressing = False
def btn_close_clicked(self):
self.parent.close()
def btn_max_clicked(self):
self.parent.showMaximized()
def btn_min_clicked(self):
self.parent.showMinimized()
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
sys.exit(app.exec_())
选项1:
选项 2:
您可以通过单击位置检测您在哪个位置单击,而不是使用 QGridLayout。
验证点击的 x 是否小于移动位置的 x 以了解它是向左还是向右移动以及它被点击的位置。
计算方法同Option1
选项 3:
提示:
祝你好运:D
以下更改应在@musicamante 给出的答案中完成
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
# self.clickPos = event.windowPos().toPoint()
self.clickPos = event.scenePosition().toPoint()
def mouseMoveEvent(self, event):
if self.clickPos is not None:
# self.window().move(event.globalPos() - self.clickPos)
self.window().move(event.globalPosition().toPoint() - self.clickPos)
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
mw.show()
# sys.exit(app.exec_())
sys.exit(app.exec())
参考资料: QMouseEvent.globalPosition() , QMouseEvent.scenePosition()
这种使用自定义小部件移动 Windows 的方法不适用于 WAYLAND。 如果有人对此有解决方案,请在此处发布以供将来参考
虽然接受的答案可以被认为是有效的,但它有一些问题。
setGeometry()
是不合适的(并且使用它的原因是错误的),因为它不考虑样式设置的可能的帧边距; 我修改了代码以为主窗口提供更好的基础,简化移动代码,并添加其他功能,如 Qt windowTitle()
属性支持、按钮的标准 QStyle 图标(而不是文本)和正确的最大化/正常按钮图标. 请注意,标题标签不会添加到布局中。
class MainWindow(QWidget):
def __init__(self):
super(MainWindow, self).__init__()
self.setWindowFlags(self.windowFlags() | Qt.FramelessWindowHint)
self.titleBar = MyBar(self)
self.setContentsMargins(0, self.titleBar.height(), 0, 0)
self.resize(640, self.titleBar.height() + 480)
def changeEvent(self, event):
if event.type() == event.WindowStateChange:
self.titleBar.windowStateChanged(self.windowState())
def resizeEvent(self, event):
self.titleBar.resize(self.width(), self.titleBar.height())
class MyBar(QWidget):
clickPos = None
def __init__(self, parent):
super(MyBar, self).__init__(parent)
self.setAutoFillBackground(True)
self.setBackgroundRole(QPalette.Shadow)
# alternatively:
# palette = self.palette()
# palette.setColor(palette.Window, Qt.black)
# palette.setColor(palette.WindowText, Qt.white)
# self.setPalette(palette)
layout = QHBoxLayout(self)
layout.setContentsMargins(1, 1, 1, 1)
layout.addStretch()
self.title = QLabel("My Own Bar", self, alignment=Qt.AlignCenter)
# if setPalette() was used above, this is not required
self.title.setForegroundRole(QPalette.Light)
style = self.style()
ref_size = self.fontMetrics().height()
ref_size += style.pixelMetric(style.PM_ButtonMargin) * 2
self.setMaximumHeight(ref_size + 2)
btn_size = QSize(ref_size, ref_size)
for target in ('min', 'normal', 'max', 'close'):
btn = QToolButton(self)
layout.addWidget(btn)
btn.setFixedSize(btn_size)
iconType = getattr(style,
'SP_TitleBar{}Button'.format(target.capitalize()))
btn.setIcon(style.standardIcon(iconType))
color = 'red' if target == 'close' else 'gray'
btn.setStyleSheet('background-color: {};'.format(color))
signal = getattr(self, target + 'Clicked')
btn.clicked.connect(signal)
setattr(self, target + 'Button', btn)
self.normalButton.hide()
self.updateTitle(parent.windowTitle())
parent.windowTitleChanged.connect(self.updateTitle)
def updateTitle(self, title=None):
if title is None:
title = self.window().windowTitle()
width = self.title.width()
width -= self.style().pixelMetric(QStyle.PM_LayoutHorizontalSpacing) * 2
self.title.setText(self.fontMetrics().elidedText(
title, Qt.ElideRight, width))
def windowStateChanged(self, state):
self.normalButton.setVisible(state == Qt.WindowMaximized)
self.maxButton.setVisible(state != Qt.WindowMaximized)
def mousePressEvent(self, event):
if event.button() == Qt.LeftButton:
self.clickPos = event.pos()
def mouseMoveEvent(self, event):
if self.clickPos is not None:
self.window().move(self.window().pos()
+ event.pos() - self.clickPos)
def mouseReleaseEvent(self, QMouseEvent):
self.clickPos = None
def closeClicked(self):
self.window().close()
def maxClicked(self):
self.window().showMaximized()
def normalClicked(self):
self.window().showNormal()
def minClicked(self):
self.window().showMinimized()
def resizeEvent(self, event):
self.title.resize(self.minButton.x(), self.height())
self.updateTitle()
if __name__ == "__main__":
app = QApplication(sys.argv)
mw = MainWindow()
layout = QVBoxLayout(mw)
widget = QTextEdit()
layout.addWidget(widget)
mw.show()
mw.setWindowTitle('My custom window with a very, very long title')
sys.exit(app.exec_())
WAYLAND和PyQT6/PySide6的工作函数:
def mousePressEvent(self, event):
if event.button() == Qt.MouseButton.LeftButton:
self._move()
return super().mousePressEvent(event)
def _move(self):
window = self.window().windowHandle()
window.startSystemMove()
请检查。
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