import tkinter as tk
from tkinter import ttk

class ViewParametersDialog:
    def __init__(self, parent, current_params=None):
        self.dialog = tk.Toplevel(parent)
        self.dialog.title("Parâmetros de visualização")
        self.dialog.geometry("300x400")
        self.dialog.resizable(False, False)
        
        # Make it modal
        self.dialog.transient(parent)
        self.dialog.grab_set()
        
        # Use current parameters if provided, otherwise use defaults
        if current_params is None:
            current_params = {
                'first_cell': '0000F0',
                'offset': 0,
                'columns': 16,
                'hex_view': False,
                'show_diff': True,
                'value_type': '8bit'
            }
        
        # Parameters
        self.first_cell = tk.StringVar(value=current_params['first_cell'])
        self.offset = tk.StringVar(value=str(current_params['offset']))
        self.columns = tk.StringVar(value=str(current_params['columns']))
        self.hex_view = tk.BooleanVar(value=current_params['hex_view'])
        self.show_diff = tk.BooleanVar(value=current_params['show_diff'])
        self.value_type = tk.StringVar(value=current_params['value_type'])
        
        self.create_widgets()
        
    def create_widgets(self):
        # Primeira Célula
        ttk.Label(self.dialog, text="Primeira Célula").grid(row=0, column=0, sticky='w', padx=5, pady=2)
        ttk.Entry(self.dialog, textvariable=self.first_cell, width=20).grid(row=1, column=0, sticky='w', padx=5)
        
        # Offset byte num
        ttk.Label(self.dialog, text="Offset byte num").grid(row=2, column=0, sticky='w', padx=5, pady=2)
        ttk.Spinbox(self.dialog, from_=0, to=1000, textvariable=self.offset, width=5).grid(row=3, column=0, sticky='w', padx=5)
        
        # Número de colunas
        ttk.Label(self.dialog, text="Número de colunas").grid(row=4, column=0, sticky='w', padx=5, pady=2)
        column_spin = ttk.Spinbox(self.dialog, from_=1, to=32, textvariable=self.columns, width=5)
        column_spin.grid(row=5, column=0, sticky='w', padx=5)
        
        # Checkboxes
        ttk.Checkbutton(self.dialog, text="Mostrar em hexadecimal", variable=self.hex_view).grid(row=6, column=0, sticky='w', padx=5, pady=5)
        ttk.Checkbutton(self.dialog, text="Mostrar diferenças", variable=self.show_diff).grid(row=7, column=0, sticky='w', padx=5)
        
        # Valor Frame
        value_frame = ttk.LabelFrame(self.dialog, text="Valor")
        value_frame.grid(row=8, column=0, sticky='nsew', padx=5, pady=5)
        
        # Valor options
        ttk.Label(value_frame, text="Valor:").grid(row=0, column=0, sticky='w', padx=5, pady=2)
        ttk.Radiobutton(value_frame, text="Valor de 8 bit", variable=self.value_type, value="8bit").grid(row=1, column=0, sticky='w', padx=20)
        ttk.Radiobutton(value_frame, text="Valor de 16 bit", variable=self.value_type, value="16bit").grid(row=2, column=0, sticky='w', padx=20)
        ttk.Radiobutton(value_frame, text="Valor de 32 bit", variable=self.value_type, value="32bit").grid(row=3, column=0, sticky='w', padx=20)
        ttk.Radiobutton(value_frame, text="Valor floating point", variable=self.value_type, value="float").grid(row=4, column=0, sticky='w', padx=20)
        
        # Buttons
        button_frame = ttk.Frame(self.dialog)
        button_frame.grid(row=10, column=0, pady=10)
        
        ttk.Button(button_frame, text="OK", command=self.ok_clicked).pack(side=tk.LEFT, padx=5)
        ttk.Button(button_frame, text="Cancelar", command=self.dialog.destroy).pack(side=tk.LEFT, padx=5)
        
    def ok_clicked(self):
        # Return the parameters
        self.result = {
            'first_cell': self.first_cell.get(),
            'offset': int(self.offset.get()),
            'columns': int(self.columns.get()),
            'hex_view': self.hex_view.get(),
            'show_diff': self.show_diff.get(),
            'value_type': self.value_type.get()
        }
        self.dialog.destroy()
        
    def show(self):
        # Center the dialog on parent
        self.dialog.focus_set()
        self.dialog.wait_window()
        return getattr(self, 'result', None)