Как использовать событие зависания мыши, когда пользователь наводит курсор на элементы внутри qlistWidget для отображения всплывающей подсказки.
Мне удалось показать всплывающую подсказку при выборе currentItem, а теперь это не так.выбирая, но просто зависая.
Приведенный ниже код демонстрирует скрипт на python, который создает интерфейс GUI, в котором пользователь выбирает путь, и система считывает его содержимое, чтобы найти соответствующее выражение после сравнения ввода пользователя и текстового содержимого.
обновленный вопрос:
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtWidgets import (QApplication, QCheckBox, QColorDialog, QDialog,
QErrorMessage, QFileDialog, QFontDialog, QFrame, QGridLayout,
QInputDialog, QLabel, QLineEdit, QMessageBox, QPushButton, QMenu)
#from PyQt5.QtCore import QDir, Qt
from PyQt5.QtWidgets import *
import pdfviewer
import os,pathlib
from pathlib import Path
import re
import json,datetime,time
from collections import defaultdict
import docx
import PyPDF2
class pdfViewer(QtWidgets.QMainWindow,pdfviewer.Ui_PdfPreviewWindow):
def __init__(self,PdfPreviewObj):
pdfviewer.Ui_PdfPreviewWindow.__init__(self)
self.PdfPreviewObj =PdfPreviewObj
self.setupUi(PdfPreviewObj)
self.PdfPreviewObj.show()
self.pushButtonSearch.setEnabled(False)
self.pushButtonOpenFolder.clicked.connect(self.setExistingDirectory)
self.pushButtonSearch.clicked.connect(self.FilteredListSearch)
self.listWidgetPDFlist.clicked.connect(self.MatchFunc)
#self.listWidgetPDFlist.doubleClicked.connect(self.OpenFileDirectory)
self.listWidgetPDFlist.doubleClicked.connect(self.OpenTheSelectedFile)
#self.listWidgetPDFlist.enterEvent()
self.hoverItem = None
self.listWidgetPDFlist.viewport().setMouseTracking(True)
self.listWidgetPDFlist.viewport().installEventFilter(self)
#####################################
#added
def eventFilter(self, obj, event):
if self.listWidgetPDFlist.viewport() == obj and event.type() == QtCore.QEvent.MouseMove:
it = self.listWidgetPDFlist.itemAt(event.pos())
if self.hoverItem != it:
message = it.text("test tooltip") # <--- place the message here
QtWidgets.QToolTip.showText(QtGui.QCursor.pos(),
message,
self.listWidgetPDFlist.viewport(),
self.listWidgetPDFlist.visualItemRect(it))
self.hoverItem = it
return QtWidgets.QMainWindow.eventFilter(self, obj, event)
#def enterEvent(self,QEvent):
## here the code for mouse hover
#Item=self.listWidgetPDFlist.currentItem().text()
#parentFile =Path().resolve().parent
#selectedFile = os.path.join(parentFile,Item)
#self.listWidgetPDFlist.setStyleSheet("""QToolTip {
#background-color: black;
#color: white;
#border-radius: 10px;
#border: black solid 1px;
#font: 12px
#}""")
#print("current row = {}".format(self.listWidgetPDFlist.currentRow()))
##{
##color: #ffffff;
##background-color: #2a82da;
##border: 1px solid white;
##}
#toolTipResult = self.listWidgetPDFlist.setToolTip(selectedFile)
#return toolTipResult
def FileListSelected(self): # Function to select the desired file from the list in the left pane
Item=self.listWidgetPDFlist.currentItem().text()
parentFile =Path().resolve().parent
selectedFile = os.path.join(parentFile,Item)
return selectedFile
def ReadingFileContent(self,Item): # Function to read the file content
if self.lineEdit_Ext.text()=='pdf'or self.rdBtn_pdf.isChecked():
try:
with open(Item,'rb')as fw:
read_pdf = PyPDF2.PdfFileReader(fw)
PDF_of_pages = read_pdf.pages
fullText = []
for page in (PDF_of_pages):
fullText.append(page.extractText())
self.textString= ' <br/> '.join(fullText)
except:
self.textEdit_PDFpreview.insertHtml('File Not Found')
pass
elif (self.lineEdit_Ext.text()=='docx' or self.lineEdit_Ext.text()=='doc' or self.rdBtn_docx.isChecked()):
try:
Doc = docx.Document(Item)
fullText = []
for para in Doc.paragraphs:
fullText.append(para.text)
self.textString= ' <br/> '.join(fullText)
except:
self.textEdit_PDFpreview.insertHtml('File Not Found')
pass
else:
try:
with open(Item) as fw:
self.textString=fw.read()
except:
self.textEdit_PDFpreview.insertHtml('No Match Found')
pass
return self.textString
def MatchFunc(self): # Function to highlight the found criteria and display it in the right pane
self.textEdit_PDFpreview.clear()
x = self.lineEditSearch.text().strip()
TextString=self.ReadingFileContent(self.FileListSelected())
if ' ' in x:
y=list(x.split(sep=" "))
for z in y:
RepX='<u><b style="color:#FF0000">'+z+'</b></u>'
self.textEdit_PDFpreview.clear()
if z in TextString:
TextString=self.HighLight(z,TextString,RepX)
else:
RepX='<u><b style="color:#FF0000">'+x+'</b></u>'
##added
self.textEdit_PDFpreview.clear()
if x in TextString:
self.HighLight(x,TextString,RepX)
def HighLight(self,x,TextString,RepX):
thematch=TextString.replace(x,RepX)
TheCount=TextString.count(x)
self.textEdit_PDFpreview.insertHtml(str(thematch))
return thematch
def setExistingDirectory(self):
self.listWidgetPDFlist.clear()
self.fileList=[]
dialog = QDialog()
options = QFileDialog.DontResolveSymlinks | QFileDialog.ShowDirsOnly
Folder = QFileDialog.getExistingDirectory(dialog, "Open Folder" ,options=options)
self.checkPath(Folder)
def checkPath(self,folder): # Funtion to check the given path for the wanted extension (Files)
try:
directory=folder
whichChecked=""
for root,dirs,files in os.walk(directory):
for filename in files:
if len(self.lineEdit_Ext.text())>0:
self.lineEdit_Ext.setStyleSheet("background-color:white")
self.lineEdit_Ext.setPlaceholderText("Enter The Filetype Extention Here")
if filename.endswith(self.lineEdit_Ext.text()):
self.fullPath=os.path.join(root,filename)
print(self.fullPath)
self.fileList.append(self.fullPath)
elif self.rdBtn_txt.isChecked() and filename.endswith("txt"):
self.fullPath=os.path.join(root,filename)
self.fileList.append(self.fullPath)
whichChecked="txt Ext was Selected"
print(fullPath)
elif self.rdBtn_pdf.isChecked() and filename.endswith("pdf"):
self.fullPath=os.path.join(root,filename)
self.fileList.append(self.fullPath)
whichChecked="pdf Ext was Selected"
print(self.fullPath)
elif self.rdBtn_docx.isChecked() and filename.endswith("docx") or filename.endswith("doc") :
self.fullPath=os.path.join(root,filename)
p = pathlib.Path(self.fullPath)
oneDir = os.path.join(*p.parts[-2:])
self.fileList.append(oneDir)
whichChecked="docx - doc Ext was Selected"
print(self.fullPath)
print(oneDir)
if len(self.fileList) > 0:
self.lineEdit_Ext.setStyleSheet("bacground-color:white;")
self.lineEdit_Ext.setPlaceholderText("{0}".format(whichChecked))
else:
self.lineEdit_Ext.setStyleSheet("background-color:Red")
self.lineEdit_Ext.setPlaceholderText("No Ext is Specified")
self.ListFilesInViewer(self.fileList) # add the list into the listWidgetPDFlist
self.pushButtonSearch.setEnabled(True)
return folder
except Exception as e:
print("this error occure {0}".format(e))
def FilteredListSearch(self): # Function to filter the list of files to the one that contains the criteria
FilteredList=[]
for Item in self.fileList:
user_input=self.lineEditSearch.text().strip()
print(user_input)
textString=self.ReadingFileContent(Item)
StrList=list(textString.splitlines())
print("str list {}".format(StrList))
#added
if ' ' in user_input:
SearchList=list(user_input.split(sep=" "))
if '' in SearchList:
SearchList.remove(" ")
CommonList=list(set(SearchList) & set(StrList))
if len(CommonList)==len(SearchList): # All the words in the list
FilteredList.append(Item)
if len(CommonList)>1: # Any word of the list
pass
else:
if user_input in textString:
FilteredList.append(Item)
self.ListFilesInViewer(FilteredList)
def ListFilesInViewer(self,Files): # Function to list all the files in the Left pane
self.listWidgetPDFlist.addItems(Files)
self.lineEditTotalPDFnumber.setText(str(self.listWidgetPDFlist.count())) #Set the total number of existing PDF files in the requested path
def OpenTheSelectedFile(self): # Function to open the selected file
os.startfile(self.FileListSelected())
def OpenFileDirectory(self):
MyDir=os.path.dirname(self.FileListSelected())
os.startfile(MyDir)
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
PdfPreviewWindow = QtWidgets.QMainWindow()
pdfViewerUi = pdfViewer(PdfPreviewWindow)
PdfPreviewWindow.show()
sys.exit(app.exec_())
примечание :
Я удалил pdfviewer.py класс, поскольку достиг максимального числа разрешенныхперсонажи в теле.