great ! maybe the next step is a syntax coloriser ^^_
Abdur-Rahmaan Janhangeer,
Mauritius
abdurrahmaanjanhangeer.wordpress.com
On 31 Dec 2017 02:05, "Wu Xi" <n...@luegenpresse.edu> wrote:
> class writerKl(object):
> def __init__(self):
> import tkinter
> from tkinter import messagebox
> from tkinter import filedialog
> from tkinter import Tk
> from tkinter import Menu
> from tkinter import END
>
> self.fileName = None
> self.saved = True
> self.app = tkinter.Tk()
> self.app.title("FenInst is another instance of the writerKl
> class")
>
> self.menuBar = tkinter.Menu(self.app)
> self.fileMenu = tkinter.Menu(self.menuBar, tearoff=0)
> self.fileMenu.add_command(label="New",
> command=self.newFile)
> self.fileMenu.add_command(label="Open",
> command=self.openFile)
> self.fileMenu.add_command(label="Save",
> command=self.saveFile)
> self.fileMenu.add_command(label="Save As",
> command=self.saveFileAs)
> self.fileMenu.add_separator() ; self.About = "A selfish
> tkinter text editor in 100 lines of python3 code.\n\n In fact this very
> ''About window'' also was modded using the selfish editor himself.\n\n Open
> the source ''writer.py'' to find out why this editor is seen as so 105x
> self-obsessed."
> self.fileMenu.add_command(label= "About", command=lambda:
> tkinter.messagebox.showinfo("About", self.About))
> self.fileMenu.add_separator()
> self.fileMenu.add_command(label="Exit", command=self.onExit)
> self.menuBar.add_cascade( label="File", menu =self.fileMenu)
> self.app.config(menu=self.menuBar)
>
> self.app.bind('<Control-n>', self.newFile ) # key
> Bindings
> self.app.bind('<Control-o>', self.openFile)
> self.app.bind('<Control-s>', self.saveFile)
> self.app.bind('<Key>', self.setsavedFalse )
> self.app.protocol("WM_DELETE_WINDOW", self.onExit) # save
> before exit?
>
> self.textf = tkinter.Text(self.app) #
> initializing text container
> self.textf.pack(expand=True, fill='both') #
> deploying text container
> self.textf.focus()
> self.app.mainloop()
>
> def newFile(self):
> import tkinter
> if not self.saved:
> save = self.promptToSave()
> if save: self.saveFile()
> elif self.save is None: return
> self.fileName = None
> self.textf.delete(0.0, tkinter.END)
> self.saved = True
>
> def openFile(self):
> import tkinter
> if not self.saved:
> self.save = self.promptToSave()
> if self.save:
> self.saveFile()
> elif self.save is None:
> return
> try:
> self.f = tkinter.filedialog.askopenfile( filetypes=[ ('all
> files', '*') , ('py files', '.py') ] )
> if self.f:
> self.fileName = self.f.name
> self.t = self.f.read()
> self.textf.delete(0.0, tkinter.END)
> self.textf.insert(tkinter.END, self.t)
> self.saved = True
> except: tkinter.messagebox.showerror("Error", "Unable to
> open file.")
>
> def saveFile(self):
> import tkinter
> self.t = self.textf.get(0.0, tkinter.END)
> if self.fileName:
> self.f = open(self.fileName, "w")
> self.f.write(self.t)
> self.f.close()
> self.saved = True
> else: self.saveFileAs()
>
> def saveFileAs(self):
> import tkinter
> self.f = tkinter.filedialog.asksaveasfile(defaultextension=".txt",
> filetypes=[ ('all files', '*'),('py files', '.py') ])
> self.t = self.textf.get(0.0, tkinter.END)
> if self.f:
> try:
> self.f.write(self.t)
> self.f.close( )
> self.saved = True
> self.fileName=self.f.name
> except: tkinter.messagebox.showwarning("Error", "Unable to
> save file.")
>
> def onExit(self):
> import tkinter
> if not self.saved:
> self.save = self.promptToSave()
> if self.save: self.saveFile()
> elif self.save is None: return
> self.app.destroy()
>
> def setsavedFalse(self, key):
> import tkinter
> if (key.keysym.isalpha() or key.keysym.isdigit() or key.keysym in
> ["Return", "Tab", "Backspace", "Delete"]): self.saved = False # any key
> that changes text
>
> def promptToSave(self):
> import tkinter
> return tkinter.messagebox.askyesnocancel( "Save file?", "Do
> you want to save the current file?")
>
>
> if __name__ == '__main__' :
> import tkinter
> FenInst =writerKl()
> --
> https://mail.python.org/mailman/listinfo/python-list
>
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