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This article mainly introduces "how to use PyQT5 to make a desktop fishing tool" related knowledge, editor through the actual case to show you the operation process, the method of operation is simple and fast, practical, I hope this "how to use PyQT5 to make a desktop fishing tool" article can help you solve the problem.

Key function control

Q exit

B bookmark function

F increase font size

Shift F reduce Font

O Open files. Now only txt files in utf8 format are supported.

Main function

FlameLess Window borderless window

Quick exit with one click

Ini file read and write

Right-click context menu

Core code

The implementation function of pyqt is relatively smooth, and the total amount of code is less than 200 lines.

From PyQt5 import QtCorefrom PyQt5.QtWidgets import * from PyQt5.QtGui import * from PyQt5.QtCore import Qtimport sys Osimport configparser# Q to quit app# B Bookmark # F increase Font size# Shift F decrease Font size# O Open * .txt fileclass FisherReader (QMainWindow): def _ _ init__ (self): super (). _ init__ () # drag self.pos = [0L0] self.mouse_down = False Self.down = [0self.text 0] self.prev = [0Magne 0] # text self.txtName =''self.text = [] self.index = 0 # style self.show_info = False self.font_size = 8 self.bgColor = QColor (255255255) self.defPalette () # self.read_Txt () def mousePressEvent (self Event): current = [event.pos () .x (), event.pos () .y ()] self.down = current self.mouse_down = True def mouseMoveEvent (self,event): current = [event.pos () .x () Event.pos () .y ()] if self.mouse_down: delta = [current [0]-self.down [0], current [1]-self.down [1]] new = [self.pos [0] + delta [0], self.pos [1] + delta [1]] self.move (new [0]) New [1]) self.pos = new # print (self.pos) self.prev = current def mouseReleaseEvent (self, event): self.mouse_down = False def keyPressEvent (self Event): if event.key () = = Qt.Key_Q: app.quit () if event.key () = = Qt.Key_Down: if self.index

< len(self.text)-1: self.index = self.index+1 self.update() if event.key() == Qt.Key_Up: if self.index >

0: self.index = self.index-1 self.update () if event.key () = = Qt.Key_F: if event.modifiers () & QtCore.Qt.ShiftModifier and self.font_size > 2: self.font _ size-= 2 else: self.font_size + = 2 self.update () if event.key () = = Qt.Key_I: self.show_info = not self.show_info self.update () If event.key () = = Qt.Key_O: self.open () self.update () if event.key () = Qt.Key_B: self.addBookmark () if event.key () = = Qt.Key_R: Self.getBookmark () def defPalette (self): P = self.palette () p.setColor (QPalette.Background) Self.bgColor) self.window () .setPalette (p) def paintEvent (self,event): painter = QPainter (self) painter.setRenderHints (QPainter.Antialiasing) if len (self.text) > 0: painter.setFont (QFont ('SimSun') Self.font_size)) painter.drawText (QtCore.QRectF (10record600), Qt.AlignLeft,self.text [self.index]) if self.show_info: painter.drawText (Qt.AlignLeft, "{} / {}" .format (self.index+1) Len (self.text)) def open (self): path, _ = QFileDialog.getOpenFileName (self, "Open File", os.getcwd () "Text files (* .txt)") if path: self.txtName = path self.read_Txt_smart (path) self.update () def read_Txt (self,file): with open (file,'r' Encoding= "UTF-8") as f: self.text = f.readlines () def cut (self,text,length): return [text [I: i+length] for i in range (0Len (text), length)] def wheelEvent (self, e): if e.angleDelta (). Y ()

< 0: if self.index < len(self.text)-1: self.index = self.index+1 elif e.angleDelta().y() >

0: if self.index > 0: self.index = self.index-1 self.update () def addBookmark (self): config = configparser.ConfigParser () path = "bookmark.ini" config.add_section ('bookmark') Config.set ('bookmark' 'path',self.txtName) config.set (' bookmark','bookmark',str (self.index)) config.write (open (path,'w')) def getBookmark (self): config = configparser.ConfigParser () path = "bookmark.ini" config.read (path) if config.has_option ('bookmark' 'path'): self.txtName = config.get (' bookmark','path') self.index = int (config.get ('bookmark','bookmark')) self.read_Txt_smart (self.txtName) Self.update () def read_Txt_smart (self,file): with open (file,'r' Encoding= "UTF-8") as f: text_buffer = [] lines = f.readlines () for line in lines: cline = self.cut (line 30) for clin cline: if len (cl) > 1: text_buffer.append (cl) self.text = text_bufferif _ _ name__ ='_ _ main__': app = QApplication (sys.argv) fisher = FisherReader () fisher.resize (660,045) fisher.setWindowFlags (Qt.FramelessWindowHint | Qt.WindowStaysOnTopHint) fisher.show () fisher.setWindowTitle ("Xiaoyu") sys.exit (app.exec_ ()) about "how to use PyQT5 to make a desktop fishing tool", that's it. Thank you for your reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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