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Switch-Toolbox/File_Format_Library/FileFormats/Font/BFTTF.cs

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5.5 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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using System.Runtime.InteropServices;
using Toolbox;
using System.Windows.Forms;
using Toolbox.Library;
using Toolbox.Library.IO;
using Toolbox.Library.Forms;
namespace FirstPlugin
{
public class BFTTF : TreeNodeFile, IFileFormat, IContextMenuNode
{
public FileType FileType { get; set; } = FileType.Font;
public bool CanSave { get; set; }
public string[] Description { get; set; } = new string[] { "Binary Cafe True Type Font" };
public string[] Extension { get; set; } = new string[] { "*.bfttf" };
public string FileName { get; set; }
public string FilePath { get; set; }
public IFileInfo IFileInfo { get; set; }
public bool Identify(System.IO.Stream stream)
{
using (var reader = new Toolbox.Library.IO.FileReader(stream, true))
{
uint magic = reader.ReadUInt32();
reader.Position = 0;
return magic == 0x1A879BD9 || magic == 0x1E1AF836 || magic == 0xC1DE68F3;
}
}
public Type[] Types
{
get
{
List<Type> types = new List<Type>();
return types.ToArray();
}
}
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[DllImport("gdi32.dll")]
private static extern IntPtr AddFontMemResourceEx(IntPtr pbFont, uint cbFont, IntPtr pdv, [In] ref uint pcFonts);
public byte[] DecryptedFont { get; set; }
//Decryption process from https://github.com/TheFearsomeDzeraora/BFTTFutil/blob/master/Program.cs
public void Load(System.IO.Stream stream)
{
Text = FileName;
using (var reader = new FileReader(stream))
{
uint decryptionKey = 0;
uint magic = reader.ReadUInt32();
switch (magic)
{
case 0x1A879BD9: decryptionKey = 2785117442U; break;
case 0x1E1AF836: decryptionKey = 1231165446U; break;
case 0xC1DE68F3: decryptionKey = 2364726489U; break;
default:
Console.WriteLine("Err 0x2: Input file isn't a BFTTF\\BFOTF");
break;
}
byte[] inFile = reader.getSection(0, (int)reader.BaseStream.Length);
if (inFile.Length <= 8) return;
uint value = GetUInt32(inFile, 4) ^ decryptionKey;
if (inFile.Length < value) return;
byte[] outFile = new byte[inFile.Length - 8];
int pos = 8;
while (pos < inFile.Length)
{
SetToUInt32(GetUInt32(inFile, pos) ^ decryptionKey, outFile, pos - 8);
pos += 4;
}
DecryptedFont = outFile;
}
}
public ToolStripItem[] GetContextMenuItems()
{
List<ToolStripItem> Items = new List<ToolStripItem>();
Items.Add(new STToolStipMenuItem("Export", null, ExportAction, Keys.Control | Keys.E));
return Items.ToArray();
}
private void ExportAction(object sender, EventArgs args)
{
SaveFileDialog sfd = new SaveFileDialog();
sfd.FileName = Text;
sfd.DefaultExt = System.IO.Path.GetExtension(Text);
sfd.Filter = "Open Type Font |*.otf;";
if (sfd.ShowDialog() == DialogResult.OK)
{
System.IO.File.WriteAllBytes(sfd.FileName, DecryptedFont);
}
}
public override void OnClick(TreeView treeview)
{
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System.Drawing.Text.PrivateFontCollection privateFonts = new System.Drawing.Text.PrivateFontCollection();
var fontDataPtr = Marshal.AllocCoTaskMem(DecryptedFont.Length);
Marshal.Copy(DecryptedFont, 0, fontDataPtr, DecryptedFont.Length);
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// We HAVE to do this to register the font to the system (Weird .NET bug !)
uint cFonts = 0;
AddFontMemResourceEx(fontDataPtr, (uint)DecryptedFont.Length, IntPtr.Zero, ref cFonts);
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privateFonts.AddMemoryFont(fontDataPtr, DecryptedFont.Length);
System.Drawing.Font font = new System.Drawing.Font(privateFonts.Families[0], 12);
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var texbox = new RichTextBox() { Multiline = true, BorderStyle = BorderStyle.None, Dock = DockStyle.Fill };
texbox.BackColor = FormThemes.BaseTheme.FormBackColor;
texbox.ForeColor = FormThemes.BaseTheme.FormForeColor;
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UserControl editor = new UserControl();
editor.Controls.Add(texbox);
LibraryGUI.LoadEditor(editor);
editor.Text = Text;
editor.Dock = DockStyle.Fill;
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editor.Font = font;
texbox.Text = "Preview Text!";
}
private static UInt32 GetUInt32(byte[] data, int pos)
{
return (UInt32)(data[pos + 3] | data[pos + 2] << 8 | data[pos + 1] << 16 | data[pos] << 24);
}
private static void SetToUInt32(uint val, byte[] data, int pos)
{
data[pos + 3] = (byte)(val & (uint)byte.MaxValue);
data[pos + 2] = (byte)(val >> 8 & (uint)byte.MaxValue);
data[pos + 1] = (byte)(val >> 16 & (uint)byte.MaxValue);
data[pos] = (byte)(val >> 24 & (uint)byte.MaxValue);
}
public void Unload()
{
}
public void Save(System.IO.Stream stream)
{
}
}
}