private void DisplayCompressionInfoStructure(CompressionInformation.CompressionInfoStructure compressionInfoStructure)
{
var markers = new List <Marker>();
switch (compressionInfoStructure)
{
case CompressionInformation.CompressionInfoStructure.Anchor:
if (Page.CompressionInformation.AnchorRecord != null)
{
markers = MarkerBuilder.BuildMarkers(Page.CompressionInformation.AnchorRecord);
}
break;
case CompressionInformation.CompressionInfoStructure.Dictionary:
if (Page.CompressionInformation.HasDictionary)
{
markers = MarkerBuilder.BuildMarkers(Page.CompressionInformation.CompressionDictionary);
}
break;
case CompressionInformation.CompressionInfoStructure.Header:
markers = MarkerBuilder.BuildMarkers(Page?.CompressionInformation);
break;
}
hexViewer.AddMarkers(markers);
markerKeyTable.SetMarkers(markers);
}
/// <summary>
/// Sets an allocation page to be displayed
/// </summary>
/// <param name="pageAddress">The page address.</param>
/// <param name="databaseName">Name of the database.</param>
/// <param name="connectionString">The connection string.</param>
/// <param name="showHeader">if set to <c>true</c> [show header].</param>
/// <returns></returns>
public List <Marker> SetAllocationPage(PageAddress pageAddress, string databaseName, string connectionString, bool showHeader)
{
topPanel.Visible = showHeader;
var allocationPage = new AllocationPage(connectionString, databaseName, pageAddress);
allocationMap.Mode = MapMode.Standard;
allocationMap.ExtentCount = 63903;
allocationMap.ExtentSize = AllocationMap.Small;
allocationMap.StartPage = allocationPage.StartPage;
allocationMap.FileId = allocationPage.StartPage.FileId;
var layer = new AllocationLayer(allocationPage.PageAddress.ToString(),
allocationPage,
Color.Brown);
layer.SingleSlotsOnly = false;
allocationMap.MapLayers.Clear();
allocationMap.MapLayers.Add(layer);
allocationMap.Invalidate();
if (showHeader)
{
SetIamInformation(allocationPage);
}
var markers = MarkerBuilder.BuildMarkers(allocationPage, string.Empty);
return(markers);
}
/// <summary>
/// Loads a record
/// </summary>
/// <param name="offset">The offset.</param>
private void LoadRecord(ushort offset)
{
Record record = null;
switch (Page.Header.PageType)
{
case PageType.Data:
Structure tableStructure = new TableStructure(Page.Header.AllocationUnitId, Page.Database);
if (Page.CompressionType == CompressionType.None)
{
record = new DataRecord(Page, offset, tableStructure);
}
else
{
record = new CompressedDataRecord(Page, offset, tableStructure);
}
allocationViewer.Visible = false;
markerKeyTable.Visible = true;
break;
case PageType.Index:
Structure indexStructure = new IndexStructure(Page.Header.AllocationUnitId, Page.Database);
record = new IndexRecord(Page, offset, indexStructure);
allocationViewer.Visible = false;
markerKeyTable.Visible = true;
break;
case PageType.Iam:
case PageType.Gam:
case PageType.Sgam:
case PageType.Bcm:
case PageType.Dcm:
allocationViewer.SetAllocationPage(Page.Header.PageAddress,
Page.Database.Name,
ConnectionString,
(Page.Header.PageType == PageType.Iam));
markerKeyTable.Visible = false;
allocationViewer.Visible = true;
break;
case PageType.Pfs:
allocationViewer.SetPfsPage(Page.Header.PageAddress,
Page.Database.Name,
ConnectionString);
markerKeyTable.Visible = false;
allocationViewer.Visible = true;
break;
case PageType.Lob3:
case PageType.Lob4:
record = new BlobRecord(Page, offset);
allocationViewer.Visible = false;
markerKeyTable.Visible = true;
break;
}
if (record != null)
{
var markers = MarkerBuilder.BuildMarkers((Markable)record);
hexViewer.AddMarkers(markers);
markerKeyTable.SetMarkers(markers);
hexViewer.ScrollToOffset(offset);
offsetTableToolStripTextBox.Text = string.Format("{0:0000}", offset);
}
}