/// <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));
}
}
}
}
}
}
internal static Bitmap KeyImage(Color color)
{
var key = new Bitmap(16, 16);
var keyRectange = new Rectangle(0, 0, key.Width - 1, key.Height - 1);
var g = Graphics.FromImage(key);
var brush = new LinearGradientBrush(keyRectange,
color,
ExtentColour.BackgroundColour(color),
LinearGradientMode.Horizontal);
g.FillRectangle(brush, keyRectange);
g.DrawRectangle(SystemPens.ControlDark, keyRectange);
return(key);
}