/// <summary>
/// Undoes the edit made to the specified game specific value.
/// </summary>
/// <param name="p_strKey">The key of the edited Game Specific Value.</param>
public void UnEditGameSpecificValue(string p_strKey)
{
ShaderEdit sedShader = new ShaderEdit(p_strKey);
SDPArchives sdpManager = new SDPArchives(GameModeInfo, FileUtility);
if (!TouchedFiles.Contains(sdpManager.GetPath(sedShader.Package)))
{
TouchedFiles.Add(sdpManager.GetPath(sedShader.Package));
TransactionalFileManager.Snapshot(sdpManager.GetPath(sedShader.Package));
}
string strKey = InstallLog.GetModKey(Mod);
string strCurrentOwnerKey = InstallLog.GetCurrentGameSpecificValueEditOwnerKey(p_strKey);
//if we didn't edit the shader, then leave it alone
if (!strKey.Equals(strCurrentOwnerKey))
{
return;
}
//if we did edit the shader, replace it with the shader we overwrote
// if we didn't overwrite the shader, then just delete it
byte[] btePreviousData = InstallLog.GetPreviousGameSpecificValue(p_strKey);
if (btePreviousData != null)
{
/*TODO (likely never): I'm not sure if this is the strictly correct way to unedit a shader
* the original unedit code was:
*
* if (m_xelModInstallLogSdpEdits != null)
* {
* foreach (XmlNode node in m_xelModInstallLogSdpEdits.ChildNodes)
* {
* //TODO (likely never): Remove this workaround for the release version
* if (node.Attributes.GetNamedItem("crc") == null)
* {
* InstallLog.UndoShaderEdit(int.Parse(node.Attributes.GetNamedItem("package").Value), node.Attributes.GetNamedItem("shader").Value, 0);
* }
* else
* {
* InstallLog.UndoShaderEdit(int.Parse(node.Attributes.GetNamedItem("package").Value), node.Attributes.GetNamedItem("shader").Value,
* uint.Parse(node.Attributes.GetNamedItem("crc").Value));
* }
* }
* }
*
* where InstallLog.UndoShaderEdit was:
*
* public void UndoShaderEdit(int package, string shader, uint crc)
* {
* XmlNode node = sdpEditsNode.SelectSingleNode("sdp[@package='" + package + "' and @shader='" + shader + "']");
* if (node == null) return;
* byte[] b = new byte[node.InnerText.Length / 2];
* for (int i = 0; i < b.Length; i++)
* {
* b[i] = byte.Parse("" + node.InnerText[i * 2] + node.InnerText[i * 2 + 1], System.Globalization.NumberStyles.AllowHexSpecifier);
* }
* if (SDPArchives.RestoreShader(package, shader, b, crc)) sdpEditsNode.RemoveChild(node);
* }
*
* after looking at SDPArchives it is not clear to me why a crc was being used.
* if ever it becomes evident that a crc is required, I will have to alter the log to store
* a crc and pass it to the RestoreShader method.
*/
if (!sdpManager.RestoreShader(sedShader.Package, sedShader.ShaderName, btePreviousData, 0))
{
throw new Exception("Failed to unedit the shader");
}
}
//TODO (likely never): how do we delete a shader? Right now, if there was no previous shader the current shader
// remains
}