private void LoadInternal(eOpenType xiOpenType, string xiFilename)
{
Chunk lNewRootChunk = null;
string lExceptionWhen = "opening file";
try
{
using (FileStream fs = File.OpenRead(xiFilename))
{
lExceptionWhen = "deserialising the file";
switch (xiOpenType)
{
case eOpenType.LevelBinary:
lNewRootChunk = new Level(fs);
break;
case eOpenType.UnknownBinary:
lNewRootChunk = new FileChunk(fs);
break;
case eOpenType.Mmv:
lNewRootChunk = new VersionList(fs);
break;
case eOpenType.Xml:
XmlSerializer xs = new XmlSerializer(typeof(Chunk));
lNewRootChunk = (Chunk)xs.Deserialize(fs);
break;
default: throw new Exception("unreachable case");
}
if (fs.Length != fs.Position)
{
//check the whole file has been read
throw new DeserialisationException(string.Format("Deserialisation terminated early at byte {0} of {1}", fs.Position, fs.Length));
}
}
}
catch (Exception err)
{
Trace.WriteLine(err);
MessageBox.Show(string.Format("Exception occurred while {0}: {1}", lExceptionWhen, err.Message), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// level loaded OK, now fill tree:
RootChunk = lNewRootChunk;
mLocalSettings.LastOpenedFile = xiFilename;
mLocalSettings.LastOpenedType = xiOpenType;
mCurrentFile = xiFilename;
mCurrentFileMode = xiOpenType == eOpenType.Mmv ? eSaveMode.Mmv : xiOpenType == eOpenType.Xml ? eSaveMode.Xml : eSaveMode.Binary;
}
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
//=======================================================================
// Prompt for file
//=======================================================================
OpenFileDialog.FileName = mLocalSettings.LastOpenedFile;
OpenFileDialog.Filter = OPEN_FILTER;
OpenFileDialog.FilterIndex = (int)mLocalSettings.LastOpenedType;
if (OpenFileDialog.ShowDialog(this) == DialogResult.OK)
{
//=====================================================================
// Open the file
//=====================================================================
string lFileToOpen = OpenFileDialog.FileName;
eOpenType lOpenType = (eOpenType)OpenFileDialog.FilterIndex;
LoadInternal(lOpenType, lFileToOpen);
}
}
private void LoadInternal(eOpenType xiOpenType, string xiFilename)
{
Chunk lNewRootChunk = null;
string lExceptionWhen = "opening file";
try
{
using (FileStream fs = File.OpenRead(xiFilename))
{
lExceptionWhen = "deserialising the file";
switch (xiOpenType)
{
case eOpenType.LevelBinary:
lNewRootChunk = new Level(fs);
break;
case eOpenType.UnknownBinary:
lNewRootChunk = new FileChunk(fs);
break;
case eOpenType.Mmv:
lNewRootChunk = new VersionList(fs);
break;
case eOpenType.Xml:
XmlSerializer xs = new XmlSerializer(typeof(Chunk));
lNewRootChunk = (Chunk)xs.Deserialize(fs);
break;
default: throw new Exception("unreachable case");
}
if (fs.Length != fs.Position)
{
//check the whole file has been read
throw new DeserialisationException(string.Format("Deserialisation terminated early at byte {0} of {1}", fs.Position, fs.Length));
}
}
}
catch (Exception err)
{
Trace.WriteLine(err);
MessageBox.Show(string.Format("Exception occurred while {0}: {1}", lExceptionWhen, err.Message), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// level loaded OK, now fill tree:
RootChunk = lNewRootChunk;
mLocalSettings.LastOpenedFile = xiFilename;
mLocalSettings.LastOpenedType = xiOpenType;
mCurrentFile = xiFilename;
mCurrentFileMode = xiOpenType == eOpenType.Mmv ? eSaveMode.Mmv : xiOpenType == eOpenType.Xml ? eSaveMode.Xml : eSaveMode.Binary;
}