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Just a simple text editor written in Python with Tk for graphics.

Check out my blog Captain DeadBones Chronicles

Python, 88 lines
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from Tkinter import * 
from tkSimpleDialog import askstring
from tkFileDialog   import asksaveasfilename

from tkMessageBox import askokcancel          

class Quitter(Frame):                        
    def __init__(self, parent=None):          
        Frame.__init__(self, parent)
        self.pack()
        widget = Button(self, text='Quit', command=self.quit)
        widget.pack(expand=YES, fill=BOTH, side=LEFT)
    def quit(self):
        ans = askokcancel('Verify exit', "Really quit?")
        if ans: Frame.quit(self)


class ScrolledText(Frame):
    def __init__(self, parent=None, text='', file=None):
        Frame.__init__(self, parent)
        self.pack(expand=YES, fill=BOTH)               
        self.makewidgets()
        self.settext(text, file)
    def makewidgets(self):
        sbar = Scrollbar(self)
        text = Text(self, relief=SUNKEN)
        sbar.config(command=text.yview)                  
        text.config(yscrollcommand=sbar.set)           
        sbar.pack(side=RIGHT, fill=Y)                   
        text.pack(side=LEFT, expand=YES, fill=BOTH)     
        self.text = text
    def settext(self, text='', file=None):
        if file: 
            text = open(file, 'r').read()
        self.text.delete('1.0', END)                   
        self.text.insert('1.0', text)                  
        self.text.mark_set(INSERT, '1.0')              
        self.text.focus()                                
    def gettext(self):                               
        return self.text.get('1.0', END+'-1c')         



class SimpleEditor(ScrolledText):                        
    def __init__(self, parent=None, file=None): 
        frm = Frame(parent)
        frm.pack(fill=X)
        Button(frm, text='Save',  command=self.onSave).pack(side=LEFT)
        Button(frm, text='Cut',   command=self.onCut).pack(side=LEFT)
        Button(frm, text='Paste', command=self.onPaste).pack(side=LEFT)
        Button(frm, text='Find',  command=self.onFind).pack(side=LEFT)
        Quitter(frm).pack(side=LEFT)
        ScrolledText.__init__(self, parent, file=file) 
        self.text.config(font=('courier', 9, 'normal'))
    def onSave(self):
        filename = asksaveasfilename()
        if filename:
            alltext = self.gettext()                      
            open(filename, 'w').write(alltext)          
    def onCut(self):
        text = self.text.get(SEL_FIRST, SEL_LAST)        
        self.text.delete(SEL_FIRST, SEL_LAST)           
        self.clipboard_clear()              
        self.clipboard_append(text)
    def onPaste(self):                                    
        try:
            text = self.selection_get(selection='CLIPBOARD')
            self.text.insert(INSERT, text)
        except TclError:
            pass                                      
    def onFind(self):
        target = askstring('SimpleEditor', 'Search String?')
        if target:
            where = self.text.search(target, INSERT, END)  
            if where:                                    
                print where
                pastit = where + ('+%dc' % len(target))   
               #self.text.tag_remove(SEL, '1.0', END)     
                self.text.tag_add(SEL, where, pastit)     
                self.text.mark_set(INSERT, pastit)         
                self.text.see(INSERT)                    
                self.text.focus()                        

if __name__ == '__main__':
    try:
        SimpleEditor(file=sys.argv[1]).mainloop()   
    except IndexError:
        SimpleEditor().mainloop()  

2 comments

sbdy716 8 years, 2 months ago  # | flag

For the record, this code is not original; it's a line-for-line copy of an example that has appeared in the book "Programming Python" since 2001 (in its 2nd through 4th editions).

That book describes this example as a prototype, and later expands it into a more full-featured and robust text editor called PyEdit. Cool stuff, but for more on this and other such code, you may want to check out the book from where this came.

Martin Miller 8 years, 2 months ago  # | flag

Sounds like Captain Deadbeat's a pirate.