public void PrepareToNavigate(HeapRenderingNavigator aNavigator)
{
SelectionBorder.PrepareToNavigate(aNavigator);
Header.PrepareToNavigate(aNavigator);
Content.PrepareToNavigate(aNavigator);
ContentBorder.PrepareToNavigate(aNavigator);
}
public void PrepareToNavigate(HeapRenderingNavigator aNavigator)
{
iLargestRectangleCalculator = new HeapCellLargestRectangleCalculator(aNavigator, 1 /* skip first box, start at 2nd box which has index 1 */);
}
public void PrepareToNavigate(HeapRenderingNavigator aNavigator)
{
}
protected override void OnPaint(PaintEventArgs aArgs)
{
try
{
// First must measure the size of the header text as we need
// this in order to layout the boxes. We cannot measure the text width
// without a graphics object, hence we have to do that here. There must
// be a better way?
iHeaderTextWidth = iFactory.Renderers.Header.MeasureCellHeaderText(aArgs.Graphics);
// Store our graphics object for later use
iGraphics = aArgs.Graphics;
// Make the navigator object that will help us lay out the cells
HeapRenderingNavigator navigator = new HeapRenderingNavigator(Cells);
// Queue events we want to receive
navigator.iNavBegin += new HeapCtrlLib.Utilities.HeapRenderingNavigator.NavBegin(Navigator_NavBegin);
navigator.iNavEnd += new HeapCtrlLib.Utilities.HeapRenderingNavigator.NavEnd(Navigator_NavEnd);
navigator.iNavNewRowHeader += new HeapCtrlLib.Utilities.HeapRenderingNavigator.NavNewRowHeader(Navigator_NavNewRowHeader);
navigator.iNavNewColumn += new HeapCtrlLib.Utilities.HeapRenderingNavigator.NavNewColumn(Navigator_NavNewColumn);
navigator.iNavHeapCellEnd += new HeapCtrlLib.Utilities.HeapRenderingNavigator.NavHeapCellEnd(Navigator_NavHeapCellEnd);
// The padding amount we apply around the entire control area in order to
// center the data.
Size centerAlignmentPadding = RowsAndColumnsRemainingPixelsDistributedEvenly;
// The co-ordinates at which we will render a box (or header).
Point startPos = new Point(centerAlignmentPadding.Width, centerAlignmentPadding.Height);
// Tell the renderers we're about to start
iFactory.Renderers.PrepareToNavigate(navigator);
// Do it
navigator.Navigate(iCellIndex, iCellAddress, iHeaderTextWidth, startPos, RowsAndColumns, CellBoxSize, CellPadding);
// Draw link lines
aArgs.Graphics.Clip = new Region(CellBoxRect);
foreach (HeapCell cell in BreadcrumbCellsOutgoing)
{
RelationshipManager relManager = cell.RelationshipManager;
// Draw embedded (outgoing) lines
foreach (RelationshipInfo outgoingRelationship in relManager.EmbeddedReferencesTo)
{
// Get coordinates of top left corner of the box for the specified
// address. If we have a clean link, we point right at the cell header.
// If not, then we point at the box in question within the target cell.
uint targetAddress = outgoingRelationship.FromCellRawItem.Data;
if (outgoingRelationship.IsCleanLink)
{
targetAddress = outgoingRelationship.ToCell.Address;
}
Point pixelPosEnd = AddressToPixelCoordinate(targetAddress);
pixelPosEnd += CellBoxSizeIncludingPaddingHalved;
Point pixelPosStart = AddressToPixelCoordinate(outgoingRelationship.FromCellRawItem.Address);
pixelPosStart += CellBoxSizeIncludingPaddingHalved;
//
Color outgoingPenColour = Color.FromArgb(120, 255, 0, 0);
using (Pen pen = new Pen(outgoingPenColour, 4.0f))
{
pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
pen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
//
aArgs.Graphics.DrawLine(pen, pixelPosStart, pixelPosEnd);
}
}
}
foreach (HeapCell cell in BreadcrumbCellsIncoming)
{
RelationshipManager relManager = cell.RelationshipManager;
// Draw incoming links
foreach (HeapCell fromCell in relManager.ReferencedBy)
{
Point pixelPosStart = AddressToPixelCoordinate(fromCell.Address);
pixelPosStart += CellBoxSizeIncludingPaddingHalved;
Point pixelPosEnd = AddressToPixelCoordinate(cell.Address);
pixelPosEnd += CellBoxSizeIncludingPaddingHalved;
//
Color outgoingPenColour = Color.FromArgb(100, 0, 0, 255);
using (Pen pen = new Pen(outgoingPenColour, 4.0f))
{
pen.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
pen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
//
aArgs.Graphics.DrawLine(pen, pixelPosStart, pixelPosEnd);
}
}
}
}
finally
{
iGraphics = null;
base.OnPaint(aArgs);
}
}
public void PrepareToNavigate(HeapRenderingNavigator aNavigator)
{
iLargestRectangleCalculator = new HeapCellLargestRectangleCalculator(aNavigator);
}
