import tkinter as tk from tkinter import messagebox from tkinter import scrolledtext import json class Note: def __init__(self, title, content): self.title = title self.content = content class NoteTakingApp: def __init__(self, master): self.master = master self.master.title("Note Taking App") self.notes = [] self.current_note = None self.create_widgets() self.load_notes() def create_widgets(self): self.note_listbox = tk.Listbox(self.master, width=40, height=20, bg="lightgrey", fg="black") self.note_listbox.grid(row=0, column=0, rowspan=6, padx=(10, 0), pady=10, sticky="ns") self.note_text = scrolledtext.ScrolledText(self.master, width=40, height=20, bg="white", fg="black") self.note_text.grid(row=0, column=1, rowspan=4, padx=(10, 0), pady=10, sticky="nsew") self.bold_button = tk.Button(self.master, text="Bold", command=self.bold_text, bg="lightblue", fg="black") self.bold_button.grid(row=4, column=1, padx=(10, 0), pady=5, sticky="w") self.italic_button = tk.Button(self.master, text="Italic", command=self.italic_text, bg="lightblue", fg="black") self.italic_button.grid(row=4, column=1, padx=(70, 0), pady=5, sticky="w") self.bullet_button = tk.Button(self.master, text="Bullet", command=self.bullet_text, bg="lightblue", fg="black") self.bullet_button.grid(row=4, column=1, padx=(130, 0), pady=5, sticky="w") self.delete_button = tk.Button(self.master, text="Delete Note", command=self.delete_note, bg="lightcoral", fg="black") self.delete_button.grid(row=5, column=1, padx=(10, 0), pady=(0, 10), sticky="w") self.new_note_button = tk.Button(self.master, text="New Note", command=self.new_note, bg="lightgreen", fg="black") self.new_note_button.grid(row=5, column=1, padx=(80, 0), pady=(0, 10), sticky="w") self.save_note_button = tk.Button(self.master, text="Save Note", command=self.save_note, bg="lightgreen", fg="black") self.save_note_button.grid(row=5, column=1, padx=(150, 0), pady=(0, 10), sticky="w") self.search_label = tk.Label(self.master, text="Search:", bg="lightgrey", fg="black") self.search_label.grid(row=6, column=0, padx=(10, 0), pady=(0, 10), sticky="w") self.search_entry = tk.Entry(self.master, width=30) self.search_entry.grid(row=6, column=1, padx=(0, 10), pady=(0, 10), sticky="w") self.search_button = tk.Button(self.master, text="Search", command=self.search_note, bg="lightblue", fg="black") self.search_button.grid(row=6, column=1, padx=(190, 0), pady=(0, 10), sticky="e") self.note_listbox.bind("<>", self.load_selected_note) def new_note(self): self.current_note = None self.note_text.delete(1.0, tk.END) self.master.title("Note Taking App - New Note") def save_note(self): title = self.note_text.get(1.0, 1.30).strip() content = self.note_text.get(1.0, tk.END).strip() if title: note = Note(title, content) if self.current_note: self.notes[self.notes.index(self.current_note)] = note self.current_note = note self.master.title(f"Note Taking App - {self.current_note.title}") else: self.notes.append(note) self.current_note = note self.master.title(f"Note Taking App - {self.current_note.title}") self.update_note_listbox() self.save_notes() messagebox.showinfo("Note Saved", "Note saved successfully.") else: messagebox.showwarning("Empty Title", "Please enter a title for the note.") def load_selected_note(self, event): try: index = self.note_listbox.curselection()[0] self.current_note = self.notes[index] self.master.title(f"Note Taking App - {self.current_note.title}") self.note_text.delete(1.0, tk.END) self.note_text.insert(tk.END, self.current_note.content) except IndexError: pass def update_note_listbox(self): self.note_listbox.delete(0, tk.END) for note in self.notes: self.note_listbox.insert(tk.END, note.title) def load_notes(self): try: with open("notes.json", "r") as file: data = json.load(file) for note_data in data: note = Note(note_data["title"], note_data["content"]) self.notes.append(note) self.update_note_listbox() except FileNotFoundError: pass def save_notes(self): data = [{"title": note.title, "content": note.content} for note in self.notes] with open("notes.json", "w") as file: json.dump(data, file) def bold_text(self): self.note_text.tag_add("bold", "sel.first", "sel.last") self.note_text.tag_configure("bold", font=("Helvetica", 12, "bold")) def italic_text(self): self.note_text.tag_add("italic", "sel.first", "sel.last") self.note_text.tag_configure("italic", font=("Helvetica", 12, "italic")) def bullet_text(self): self.note_text.insert(tk.INSERT, "\u2022 ", "bullet") def delete_note(self): if self.current_note: self.notes.remove(self.current_note) self.update_note_listbox() self.current_note = None self.note_text.delete(1.0, tk.END) self.master.title("Note Taking App") self.save_notes() messagebox.showinfo("Note Deleted") else: messagebox.showinfo("No Note Selected", "Please select a note to delete.") def search_note(self): query = self.search_entry.get().strip().lower() if query: found = False for note in self.notes: if query in note.title.lower() or query in note.content.lower(): self.current_note = note self.master.title(f"Note Taking App - {self.current_note.title}") self.note_text.delete(1.0, tk.END) self.note_text.insert(tk.END, self.current_note.content) found = True break if not found: messagebox.showinfo("Note Not Found", "No matching note found.") else: messagebox.showwarning("Empty Search", "Please enter a search query.") def main(): root = tk.Tk() app = NoteTakingApp(root) root.mainloop() if __name__ == "__main__": main()