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Inspired by "A-Note": http://a-note.sourceforge.net/

And based on these tricks:

But here I am using my improved version of the automatic resized Text widget: https://code.activestate.com/recipes/578886-automatic-resized-text-widget-tkinter/

Features:

  • The note is draggable
  • You can minimize the note at the left side of the screen or maximize it
  • You can hide the contents of the note
  • Hotkeys to save content of note to a file, open content of file inside a note and show help.

Please, comment me whether you see some bug.

Python, 400 lines
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# Version: 1.0
# Author: Miguel Martinez Lopez
# Uncomment the next line to see my email
# print("Author's email: %s"%"61706c69636163696f6e616d656469646140676d61696c2e636f6d".decode("hex"))

try:
    from Tkinter import Text, Frame, Label, Toplevel, PhotoImage
    from Tkconstants import *
    import tkFileDialog
    import tkMessageBox
    import ttk
    import tkFont
except ImportError:
    from tkinter import Text, Frame, Label, Toplevel, PhotoImage
    from tkinter.constants import *
    import tkinter.messagebox as tkMessageBox
    import tkinter.filedialog as tkFileDialog
    import tkinter.ttk as ttk
    import tkinter.font as tkFont

VERSION = 1.0
    
HELP_MESSAGE = '''
Tkinter Desktop Notes v%s

Editing Commands
    Ctrl-x : Cut selected text
    Ctrl-c : Copy selected text
    Ctrl-v : Paste cut/copied text
    Ctrl-Z : Undo
    Ctrl-Shift-z : Redo

File Commands
    Ctrl-o : Open file
    Ctrl-s : Save current note
    Ctrl-a : Save current note as <filename>
    Ctrl-n : Open new note

General
    Ctrl-h : Display this help window
'''%VERSION

class DraggableWindow(Toplevel):

    def __init__(self, master=None, disable_dragging =False, release_command = None):
        Toplevel.__init__(self, master)

        if disable_dragging == False:
            self.bind('<Button-1>', self.initiate_motion)
            self.bind('<ButtonRelease-1>', self.release_dragging)

        self.release_command = release_command


    def initiate_motion(self, event):
        # This is another possibility:
        #   OriX, OriY = self.window_position()
        #   self.deltaX = event.x_root - OriX
        #   self.deltaY = event.y_root - OriY
        #
        self.deltaX = event.x_root - self.winfo_x()
        self.deltaY = event.y_root - self.winfo_y()

        self.bind('<Motion>', self.drag_window)


    def drag_window(self, event):
        new_x = event.x_root - self.deltaX
        new_y = event.y_root - self.deltaY

        if new_x < 0 :
            new_x = 0

        if new_y < 0 :
            new_y = 0

        self.wm_geometry("+%s+%s" % (new_x, new_y))

    def release_dragging(self, event):
        self.unbind('<Motion>')

        if self.release_command != None :
            self.release_command()

    def disable_dragging(self) :
        self.unbind('<Button-1>')
        self.unbind('<ButtonRelease-1>')
        self.unbind('<Motion>')

    def enable_dragging(self):
        self.bind('<Button-1>', self.initiate_motion)
        self.bind('<ButtonRelease-1>', self.release_dragging)



class AutoResizedText(Frame):
    def __init__(self, master, width=0, height=0, family=None, size=None,*args, **kwargs):
        
        Frame.__init__(self, master, width = width, height= height)
        self.pack_propagate(False)

        self._min_width = width
        self._min_height = height

        self._textarea = Text(self, *args, **kwargs)
        self._textarea.pack(expand=True, fill='both')

        if family != None and size != None:
            self._font = tkFont.Font(family=family,size=size)
        else:
            self._font = tkFont.Font(family=self._textarea.cget("font"))

        self._textarea.config(font=self._font)

        # I want to insert a tag just in front of the class tag
        # It's not necesseary to guive to this tag extra priority including it at the beginning
        # For this reason I am making this search
        self._autoresize_text_tag = "autoresize_text_"+str(id(self))
        list_of_bind_tags = list(self._textarea.bindtags())
        list_of_bind_tags.insert(list_of_bind_tags.index('Text'), self._autoresize_text_tag)

        self._textarea.bindtags(tuple(list_of_bind_tags))
        self._textarea.bind_class(self._autoresize_text_tag, "<KeyPress>",self._on_keypress)

    def _on_keypress(self, event):
        self._textarea.focus_set()
        
        if event.keysym == 'BackSpace':
            self._textarea.delete("%s-1c" % INSERT)
            new_text = self._textarea.get("1.0", END)
        elif event.keysym == 'Delete':
            self._textarea.delete("%s" % INSERT)
            new_text = self._textarea.get("1.0", END)
        # We check whether it is a punctuation or normal key
        elif len(event.char) == 1:
            if event.keysym == 'Return':
                # In this situation ord(event.char)=13, which is the CARRIAGE RETURN character
                # We want instead the new line character with ASCII code 10
                new_char = '\n'
            else:
                new_char = event.char


            old_text = self._textarea.get("1.0", END)
            new_text = self._insert_character_into_message(old_text, self._textarea.index(INSERT), new_char)

        else:
            # If it is a special key, we continue the binding chain
            return
    
        # Tk Text widget always adds a newline at the end of a line
        # This last character is also important for the Text coordinate system
        new_text = new_text[:-1]

        self._fit_to_size_of_text(new_text)

        # Finally we insert the new character
        if event.keysym != 'BackSpace' and event.keysym != 'Delete':
            self._textarea.insert(INSERT, new_char)
        
        return "break"

    def _insert_character_into_message(self, message, coordinate, char):
        target_row, target_column = map( int, coordinate.split('.'))

        this_row = 1
        this_column = 0
        index = 0

        for ch in message:
            if this_row == target_row and this_column == target_column:
                message = message[:index] + char + message[index:]
                return message

            index += 1

            if ch == '\n':
                this_row += 1
                this_column = 0
            else:
                this_column += 1

    def _fit_to_size_of_text(self, text):
        number_of_lines = 0
        widget_width = 0

        for line in text.split("\n"):
            widget_width = max(widget_width,self._font.measure(line))
            number_of_lines += 1

        # We need to add this extra space to calculate the correct width
        widget_width += 2*self._textarea['bd'] + 2*self._textarea['padx'] + self._textarea['insertwidth']

        if widget_width < self._min_width:
            widget_width = self._min_width

        self._textarea.configure(height=number_of_lines)
        widget_height = max(self._textarea.winfo_reqheight(), self._min_height)

        self.config(width=widget_width, height=widget_height)

        # If we don't call update_idletasks, the window won't be resized before an insertion
        self.update_idletasks()

    @property
    def tag(self):
        return self._autoresize_text_tag

    def focus(self):
        self._textarea.focus()
        
    def bind(self, event, handler, add=None):
        self._textarea.bind(event, handler, add)

    def get(self, start, end=None):
        return self._textarea.get(start, end)

    def update(self, text):
        self._textarea.delete('1.0', 'end')        
        self._fit_to_size_of_text(text)
        self._textarea.insert('1.0', text)


class DesktopNote(DraggableWindow):
    BG_NOTE = '#ffff7d'
    FILETYPES = [('Text/ASCII', '*.txt'), ('All files', '*')]
            
    def __init__(self, master, title='Without title', min_width =110, min_height = 40):
        DraggableWindow.__init__(self, master)
        
        self.wm_attributes('-topmost', True)
        self.overrideredirect(True)

        self.filename = ''

        self.close_IMG = PhotoImage(data="R0lGODlhEAAQAPAAAAQEBAAAACH5BAEAAAEALAAAAAAQABAAAAImDI6ZFu3/DpxO0mlvBLFX7oEfJo5QZlZNaZTupp2shsY13So6VwAAOw==")
        self.minimize_IMG = PhotoImage(data="R0lGODlhEAAQAPAAAAQEBAAAACH5BAEAAAEALAAAAAAQABAAAAIiDI6ZFu3/DpxO0mlvBBrmbnBg83Wldl6ZgoljSsFYqNRcAQA7")
        self.restore_IMG = PhotoImage(data="R0lGODlhEAAQAPcAAAAAAAQEBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAP8ALAAAAAAQABAAAAhFAP8FGEiwYEGB/xIqXLhwIMOHCh02NBgxAEODFhNKjNiwYsWDGQWGxIhQ48iJI09ynLhS48WUB1lCfLhxpkebHTHqtBgQADs=")
        self.minimizeAtRightSide_IMG = PhotoImage(data="R0lGODlhEAAQAPcAAAAAAAQEBAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAP8ALAAAAAAQABAAAAg+AP8FGEiwYEGB/xIqXLhwIMOHCh1CfChxosSKEC8GmJhQI0eBG0F+9MiRpMWQGCmiDPmxI8uWKUuCNEhzY0AAOw==")


        frameNote = Frame(self, bg=self.BG_NOTE, bd=1, highlightbackground='black',highlightcolor='black',highlightthickness=1)
        frameNote.pack()

        self.mimizedNote = Label(frameNote, text=title, bg=self.BG_NOTE, wraplength=1)
        self.mimizedNote.bind('<Button-1>', lambda event: self.maximize_from_right_side())

        self.maximizedNote = Frame(frameNote)
        self.maximizedNote.pack()

        Header = Frame(self.maximizedNote, bg=self.BG_NOTE)
        Header.pack(fill=X)

        ttk.Separator(self.maximizedNote, orient=HORIZONTAL).pack(expand=True, fill=X)

        titleLabel = Label(Header, text = title, bg=self.BG_NOTE)
        titleLabel.pack(side=LEFT)

        Button(Header, compound=TOP, image=self.close_IMG, bg=self.BG_NOTE,activebackground=self.BG_NOTE, command= self.destroy).pack(side=RIGHT)

        self.iconifyButton = Button(Header, image=self.minimize_IMG, command=self.minimize,  bg=self.BG_NOTE, activebackground=self.BG_NOTE)
        self.iconifyButton.pack(side=RIGHT)

        Button(Header, compound=TOP, image=self.minimizeAtRightSide_IMG, bg=self.BG_NOTE,activebackground=self.BG_NOTE, command= self.minimize_at_right_side).pack(side=RIGHT)

        self.text_box = AutoResizedText(self.maximizedNote, bd=0, bg=self.BG_NOTE, width=min_width, height=min_height)
        self.text_box.pack(expand=YES, fill=BOTH)

        self.text_box.bind('<Control-n>', lambda event: self.ask_title_and_create_window())
        self.text_box.bind('<Control-N>', lambda event: self.ask_title_and_create_window())
        self.text_box.bind('<Control-o>', lambda event: self.open_file())
        self.text_box.bind('<Control-O>', lambda event: self.open_file())
        self.text_box.bind('<Control-s>', lambda event: self.save_file())
        self.text_box.bind('<Control-S>', lambda event: self.save_file())
        self.text_box.bind('<Control-a>', lambda event: self.save_file_as())
        self.text_box.bind('<Control-A>', lambda event: self.save_file_as())
        self.text_box.bind('<Control-h>', lambda event: self.help())
        self.text_box.bind('<Control-H>', lambda event: self.help())

    def save_file(self, whatever = None):
        if not self.filename:
            self.save_file_as()
        else:
            with open(self.filename, 'w') as f:
                f.write(self.text_box.get('1.0', 'end'))

            # Comment out the following 2 lines if you don't want a 
            # pop-up message every time you save a file:
            tkMessageBox.showinfo('FYI', 'File Saved.')
            self.after(1, self.text_box.focus)
        return "break"

    def save_file_as(self, change_title = False):
        self.filename = tkFileDialog.asksaveasfilename(filetypes = self.FILETYPES)
        
        if self.filename:
            with open(self.filename, 'w') as f:
                f.write(self.text_box.get('1.0', 'end'))

            if change_title:
                self.title(self.filename)
            # comment out the following line if you don't want a
            # pop-up message every time you save a file:
            tkMessageBox.showinfo('FYI', 'File Saved')

        self.after(1, self.text_box.focus)
        return "break"

    def open_file(self, filename = None, change_title=False):
        if not filename:
            self.filename = tkFileDialog.askopenfilename(filetypes = self.FILETYPES)
        else:
            self.filename = filename

        if not self.filename:
            with open(self.filename, 'r') as f:
                self.text_box.update(f.read())

            if change_title:
                self.title('File %s' % self.filename)

        self.after(1, self.text_box.focus)
        return "break"

    def ask_title_and_create_window(self):
        toplevel = Toplevel()
        
        label = Label(toplevel, text="Title:")
        label.pack(anchor=W)

        entry = Entry(toplevel, width=15)
        entry.pack(anchor=W, fill=X)
        
        entry.bind("<Return>", lambda event: (self.new_window(entry.get()), toplevel.destroy()))
        
        entry.focus()
        
        return "break"

    @classmethod
    def new_window(class_, title):
        desktop_note = class_(root, title)
        desktop_note.text_box.focus()

    def help(self):
        tkMessageBox.showinfo('Tkinter Desktop Notes Help', message = HELP_MESSAGE)
        self.after(1, self.text_box.focus)
        return "break"

    def minimize_at_right_side(self):
        self.disable_dragging()
        self.maximizedNote.pack_forget()
        self.mimizedNote.pack()

        self.x = self.winfo_x()
        self.y = self.winfo_y()

        self.wm_geometry('-0+%d'%self.y)

    def maximize_from_right_side(self):
        self.maximizedNote.pack()
        self.mimizedNote.pack_forget()
        self.wm_geometry('+%d+%d'% (self.x,self.y))
        self.enable_dragging()

    def minimize(self):
        self.text_box.pack_forget()
        self.iconifyButton['command'] = self.maximize
        self.iconifyButton['image'] = self.restore_IMG

    def maximize(self):
        self.text_box.pack(expand=YES, fill=BOTH)
        self.iconifyButton['command'] = self.minimize
        self.iconifyButton['image'] = self.minimize_IMG


if __name__ == '__main__':
    try:
        from Tkinter import Tk, Entry, StringVar, Button, Label
        from Tkconstants import LEFT
    except ImportError:
        from tkinter import Tk, Entry, StringVar, Button, Label
        from tkinter.constants import LEFT

    def create_a_new_note():
        DesktopNote.new_window(title_var.get())
        
    root = Tk()
    Label(root,text="Title:").pack(side=LEFT)

    title_var = StringVar()
    title_var.set('TITLE')

    entry_title = Entry(root, textvariable=title_var)
    entry_title.pack(side=LEFT)
    entry_title.bind('<Return>', lambda event: create_a_new_note() )

    Button(root, text="Create another note", command=create_a_new_note).pack(side=LEFT)

    root.mainloop()

2 comments

Stephen Chappell 7 years, 2 months ago  # | flag

After creating a new note, previous notes are not editable.

Miguel Martínez López (author) 7 years, 2 months ago  # | flag

It's totally true. There was a bug in this code: https://code.activestate.com/recipes/578886-automatic-resized-text-widget-tkinter/

I solved the problem and now there is an update.

The problem was in this line: self.Text_widget.bind_class("autoresizetext", "<KeyPress>",self.update_textbox).

Every time that you make an instance of AutoResizedText the callback associated to the class binding "autoresizetext" is changed. This has been the reason of the bug. My solution has been to associate a different tag for every new instance.