/// <summary>
/// Finds a page.
/// </summary>
/// <param name="pageAddress">The page address.</param>
/// <param name="findInverted">if set to <c>true</c> [find inverted].</param>
/// <returns></returns>
public AllocationLayer FindPage(PageAddress pageAddress, bool findInverted)
{
int extentAddress;
extentAddress = pageAddress.PageId / 8;
foreach (var alloc in allocations)
{
// Check if it's the actual IAM
if (alloc.Pages.Exists(delegate(AllocationPage p) { return(p.PageAddress == pageAddress); }))
{
return(this);
}
if (Allocation.CheckAllocationStatus(extentAddress, pageAddress.FileId, findInverted, alloc))
{
return(this);
}
if (alloc.SinglePageSlots.Contains(pageAddress))
{
return(this);
}
}
return(null);
}
/// <summary>
/// Draws the extents for each allocation layer
/// </summary>
/// <param name="e">The <see cref="System.Windows.Forms.PaintEventArgs"/> instance containing the event data.</param>
private void DrawExtents(PaintEventArgs e)
{
pageExtentRenderer.ResizeExtentBrush(ExtentSize);
for (var extent = windowPosition;
extent < ExtentCount && extent < (VisibleExtents + windowPosition);
extent++)
{
foreach (var layer in MapLayers)
{
if (layer.Visible && !layer.SingleSlotsOnly)
{
foreach (var chain in layer.Allocations)
{
var targetExtent = extent + (StartPage.PageId / 8);
if (Allocation.CheckAllocationStatus(targetExtent, FileId, layer.Invert, chain))
{
pageExtentRenderer.SetExtentBrushColour(layer.Colour,
ExtentColour.BackgroundColour(layer.Colour));
pageExtentRenderer.DrawExtent(e.Graphics, ExtentPosition(extent - WindowPosition));
}
}
}
}
}
}
/// <summary>
/// Finds an allocated extent in the layer.
/// </summary>
/// <param name="extent">The extent.</param>
/// <param name="fileId">The file id.</param>
/// <param name="findInverted">if set to <c>true</c> [find inverted].</param>
/// <returns></returns>
public AllocationLayer FindExtent(int extent, int fileId, bool findInverted)
{
foreach (var alloc in allocations)
{
if (Allocation.CheckAllocationStatus(extent, fileId, findInverted, alloc))
{
return(this);
}
}
return(null);
}
