屏幕变化监听

This commit is contained in:
Irony 2021-04-13 14:40:32 +08:00
parent 2a54e678ae
commit 7c396a9a40
7 changed files with 328 additions and 1 deletions

View file

@ -23,6 +23,7 @@
- [判断信号是否连接](#20判断信号是否连接) - [判断信号是否连接](#20判断信号是否连接)
- [调用虚拟键盘](#21调用虚拟键盘) - [调用虚拟键盘](#21调用虚拟键盘)
- [动态忙碌光标](#22动态忙碌光标) - [动态忙碌光标](#22动态忙碌光标)
- [屏幕变动监听](#23屏幕变动监听)
## 1、重启窗口Widget ## 1、重启窗口Widget
[运行 RestartWindow.py](RestartWindow.py) [运行 RestartWindow.py](RestartWindow.py)
@ -224,3 +225,10 @@ PyQt 结合 Opencv 进行人脸检测;
通过定时器不停的修改光标图片来实现动态效果 通过定时器不停的修改光标图片来实现动态效果
![GifCursor](ScreenShot/GifCursor.gif) ![GifCursor](ScreenShot/GifCursor.gif)
## 23、屏幕变动监听
[运行 ScreenNotify.py](ScreenNotify.py)
通过定时器减少不同的变化信号,尽量保证只调用一次槽函数来获取信息
![ScreenNotify](ScreenShot/ScreenNotify.png)

58
Demo/ScreenNotify.py Normal file
View file

@ -0,0 +1,58 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2021/4/13
@author: Irony
@site: https://github.com/PyQt5
@email: 892768447@qq.com
@file: ScreenNotify
@description: 屏幕分辨率DPI变化通知
"""
import sys
from PyQt5.QtCore import QTimer, QRect
from PyQt5.QtWidgets import QApplication, QPlainTextEdit, qApp
class Window(QPlainTextEdit):
def __init__(self, *args, **kwargs):
super(Window, self).__init__(*args, **kwargs)
self.appendPlainText('修改分辨率后查看')
# 记录最后一次的值(减少槽调用)
self.m_rect = QRect()
# 使用定时器来延迟触发最后一次变化
self.m_timer = QTimer(self, timeout=self.onSolutionChanged)
self.m_timer.setSingleShot(True) # **重要** 保证多次信号尽量少的调用函数
# 主要是多屏幕->无屏幕->有屏幕
qApp.primaryScreenChanged.connect(lambda _: self.m_timer.start(1000))
# 其它信号最终基本上都会调用该信号
qApp.primaryScreen().virtualGeometryChanged.connect(lambda _: self.m_timer.start(1000))
# DPI变化
qApp.primaryScreen().logicalDotsPerInchChanged.connect(lambda _: self.m_timer.start(1000))
def onSolutionChanged(self):
# 获取主屏幕
screen = qApp.primaryScreen()
if self.m_rect == screen.availableVirtualGeometry():
return
self.m_rect = screen.availableVirtualGeometry()
# 所有屏幕可用大小
self.appendPlainText('\navailableVirtualGeometry: {0}'.format(str(screen.availableVirtualGeometry())))
# 获取所有屏幕
screens = qApp.screens()
for screen in screens:
self.appendPlainText(
'screen: {0}, geometry({1}), availableGeometry({2}), logicalDotsPerInch({3}), '
'physicalDotsPerInch({4}), refreshRate({5})'.format(
screen.name(), screen.geometry(), screen.availableGeometry(), screen.logicalDotsPerInch(),
screen.physicalDotsPerInch(), screen.refreshRate()))
if __name__ == '__main__':
app = QApplication(sys.argv)
w = Window()
w.show()
sys.exit(app.exec_())

Binary file not shown.

After

Width:  |  Height:  |  Size: 6.1 KiB

View file

@ -0,0 +1,105 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2020/7/31
@author: Irony
@site: https://pyqt.site https://github.com/PyQt5
@email: 892768447@qq.com
@file: ClipboardMaster
@description:
"""
from PyQt5.QtCore import QUrl, pyqtSlot, pyqtSignal, QLoggingCategory, QVariant, QMimeData
from PyQt5.QtRemoteObjects import QRemoteObjectHost
from PyQt5.QtWidgets import QTextBrowser
__Author__ = 'Irony'
__Copyright__ = 'Copyright (c) 2019 Irony'
__Version__ = 1.0
import sys
class WindowMaster(QTextBrowser):
SignalUpdateMimeData = pyqtSignal(
bool, QVariant, # color
bool, QVariant, # html
bool, QVariant, # image
bool, QVariant, # text
bool, QVariant, # urls
)
def __init__(self, *args, **kwargs):
super(WindowMaster, self).__init__(*args, **kwargs)
# 监听剪切板
# clipboard = QApplication.clipboard()
# clipboard.dataChanged.connect(self.on_data_changed)
# 开启节点
host = QRemoteObjectHost(QUrl('tcp://0.0.0.0:' + sys.argv[1]), parent=self)
host.enableRemoting(self, 'WindowMaster')
self.append('开启节点完成')
def on_data_changed(self):
# 服务端剪贴板变化后发送到客户端
clipboard = QApplication.clipboard()
clipboard.blockSignals(True)
mime_data = clipboard.mimeData()
self.SignalUpdateMimeData.emit(
mime_data.hasColor(), mime_data.colorData(),
mime_data.hasHtml(), mime_data.html(),
mime_data.hasImage(), mime_data.imageData(),
mime_data.hasText(), mime_data.text(),
mime_data.hasUrls(), mime_data.urls(),
)
clipboard.blockSignals(False)
@pyqtSlot(
bool, QVariant, # color
bool, QVariant, # html
bool, QVariant, # image
bool, QVariant, # text
bool, QVariant, # urls
bool, QVariant # files
)
def updateMimeData(self,
hasColor, color,
hasHtml, html,
hasImage, image,
hasText, text,
hasUrls, urls,
hasFiles, files,
):
# 客户端剪切板同步到服务端
self.append('收到客户端发送的剪贴板')
clipboard = QApplication.clipboard()
clipboard.blockSignals(True)
data = QMimeData()
if hasColor:
data.setColorData(color)
if hasHtml:
data.setHtml(html)
if hasImage:
data.setImageData(image)
if hasText:
data.setText(text)
# if hasUrls:
# data.setUrls(urls)
if hasFiles:
data.setData('')
clipboard.setMimeData(data)
clipboard.blockSignals(False)
if __name__ == '__main__':
import cgitb
cgitb.enable(1, None, 5, '')
from PyQt5.QtWidgets import QApplication
QLoggingCategory.setFilterRules('qt.remoteobjects.debug=true\n'
'qt.remoteobjects.warning=true')
app = QApplication(sys.argv)
w = WindowMaster()
w.show()
sys.exit(app.exec_())

View file

@ -0,0 +1,107 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2020/7/31
@author: Irony
@site: https://pyqt.site https://github.com/PyQt5
@email: 892768447@qq.com
@file: ClipboardSlave
@description:
"""
from PyQt5.QtCore import QUrl, pyqtSignal, QVariant, QMimeData
from PyQt5.QtRemoteObjects import QRemoteObjectNode, QRemoteObjectReplica
from PyQt5.QtWidgets import QTextBrowser
__Author__ = 'Irony'
__Copyright__ = 'Copyright (c) 2019 Irony'
__Version__ = 1.0
class WindowSlave(QTextBrowser):
SignalUpdateMimeData = pyqtSignal(
bool, QVariant, # color
bool, QVariant, # html
bool, QVariant, # image
bool, QVariant, # text
bool, QVariant, # urls
bool, QVariant, # files
)
def __init__(self, *args, **kwargs):
super(WindowSlave, self).__init__(*args, **kwargs)
# 监听剪切板
clipboard = QApplication.clipboard()
clipboard.dataChanged.connect(self.on_data_changed)
# 加入Master节点
node = QRemoteObjectNode(parent=self)
node.connectToNode(QUrl('tcp://{}:{}'.format(sys.argv[1], sys.argv[2])))
# 获取WindowMaster对象
self.windowMaster = node.acquireDynamic('WindowMaster')
# 初始化成功后才能去绑定信号等
self.windowMaster.initialized.connect(self.onInitialized)
# 状态改变 https://doc.qt.io/qt-5/qremoteobjectreplica.html#State-enum
self.windowMaster.stateChanged.connect(self.onStateChanged)
def onStateChanged(self, newState, oldState):
if newState == QRemoteObjectReplica.Suspect:
self.append('连接丢失')
def onInitialized(self):
self.SignalUpdateMimeData.connect(self.windowMaster.updateMimeData)
# self.windowMaster.SignalUpdateMimeData.connect(self.updateMimeData)
self.append('绑定信号槽完成')
def on_data_changed(self):
# 客户端剪贴板变化后发送到远程
print('on_data_changed')
clipboard = QApplication.clipboard()
clipboard.blockSignals(True)
mime_data = clipboard.mimeData()
files = mime_data.data('text/uri-list')
self.SignalUpdateMimeData.emit(
mime_data.hasColor(), mime_data.colorData(),
mime_data.hasHtml(), mime_data.html(),
mime_data.hasImage(), mime_data.imageData(),
mime_data.hasText(), mime_data.text(),
mime_data.hasUrls(), mime_data.urls(),
True if files else False, files,
)
clipboard.blockSignals(False)
def updateMimeData(self,
hasColor, color,
hasHtml, html,
hasImage, image,
hasText, text,
hasUrls, urls
):
# 远程的剪贴板同步到客户端
clipboard = QApplication.clipboard()
clipboard.blockSignals(True)
data = QMimeData()
if hasColor:
data.setColorData(color)
if hasHtml:
data.setHtml(html)
if hasImage:
data.setImageData(image)
if hasText:
data.setText(text)
if hasUrls:
data.setUrls(urls)
clipboard.setMimeData(data)
clipboard.blockSignals(False)
if __name__ == '__main__':
import sys
import cgitb
cgitb.enable(1, None, 5, '')
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv)
w = WindowSlave()
w.show()
sys.exit(app.exec_())

View file

@ -253,6 +253,7 @@ https://pyqt.site 论坛是专门针对PyQt5学习和提升开设的网站
- [判断信号是否连接](Demo/IsSignalConnected.py) - [判断信号是否连接](Demo/IsSignalConnected.py)
- [调用虚拟键盘](Demo/CallVirtualKeyboard.py) - [调用虚拟键盘](Demo/CallVirtualKeyboard.py)
- [动态忙碌光标](Demo/GifCursor.py) - [动态忙碌光标](Demo/GifCursor.py)
- [屏幕变动监听](Demo/ScreenNotify.py)
# QQ群 # QQ群

48
Test/ColumnView.py Normal file
View file

@ -0,0 +1,48 @@
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2020/9/14
@author: Irony
@site: https://pyqt.site https://github.com/PyQt5
@email: 892768447@qq.com
@file: ColumnView
@description:
"""
from PyQt5.QtWidgets import QComboBox, QFileSystemModel, QHBoxLayout, QSpacerItem, QSizePolicy
__Author__ = 'Irony'
__Copyright__ = 'Copyright (c) 2020'
__Version__ = 'Version 1.0'
class PathComboBox(QComboBox):
def __init__(self, *args, is_item=False, **kwargs):
super(PathComboBox, self).__init__(*args, **kwargs)
self.is_item = is_item
if not self.is_item:
self.setEditable(True)
layout = QHBoxLayout(self)
layout.setSpacing(0)
layout.setContentsMargins(0, 0, 0, 23)
layout.addItem(QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum))
else:
self.f_model = QFileSystemModel(self)
self.f_model.setRootPath('')
self.setModel(self.f_model)
def addWidget(self, widget):
self.layout().insertWidget(self.layout().count()-1, widget)
if __name__ == '__main__':
import sys
from PyQt5.QtWidgets import QApplication
app = QApplication(sys.argv)
w = PathComboBox()
w.show()
w.addWidget(PathComboBox(w, is_item=True))
sys.exit(app.exec_())