frmCompression.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.IO;
using System.Windows.Forms;
using GBA;
using MOTHER3;
using Extensions;

namespace MOTHER3Funland
{
    public partial class frmCompression : M3Form
    {
        public frmCompression()
        {
            InitializeComponent();
            ModuleArbiter.FormLoading(this);
        }

        private void btnDecomp_Click(object sender, EventArgs e)
        {
            int address = GetInt(txtAddress);
            if (address == -1)
            {
                txtAddress.SelectAll();
                return;
            }

            // Try to decomp
            byte[] output;
            int res = LZ77.Decompress(M3Rom.Rom, address, out output);

            if (res == -1)
            {
                MessageBox.Show("There was an error decompressing the data!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                MessageBox.Show("Decompressed " + output.Length + " bytes from " + res + " bytes.", "Success");
                if (dlgSave.ShowDialog() == DialogResult.OK)
                    File.WriteAllBytes(dlgSave.FileName, output);
            }
        }

        private void txtAddress_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                btnDecomp_Click(null, null);
            }
        }

        public override void SelectIndex(int[] index)
        {
            int a = index[0];
            if (a >= 0) txtAddress.Text = a.ToString("X");
        }

        public override int[] GetIndex()
        {
            return new int[] { GetInt(txtAddress) };
        }

        private int GetInt(TextBox t)
        {
            int address = 0;
            try
            {
                address = int.Parse(t.Text, System.Globalization.NumberStyles.HexNumber);
                if ((address < 0) || (address >= 0x1ffffff)) return -1;
            }
            catch
            {
                return -1;
            }
            return address;
        }
    }
}