/// <summary>
/// Performs a hit test.
/// </summary>
private void DoHitTest(Point pt)
{
ImageListView.HitInfo h;
mImageListView.HitTest(pt, out h);
if (h.ItemHit)
{
HoveredItem = mImageListView.Items[h.ItemIndex];
}
else
{
HoveredItem = null;
}
if (h.PaneBorder)
{
HoveredPaneBorder = true;
}
else
{
HoveredPaneBorder = false;
}
inItemArea = h.InItemArea;
inHeaderArea = h.InHeaderArea;
inPaneArea = h.InPaneArea;
}
/// <summary>
/// Draws an overlay image over the client area.
/// </summary>
/// <param name="g">The System.Drawing.Graphics to draw on.</param>
/// <param name="bounds">The bounding rectangle of the client area.</param>
public override void DrawOverlay(Graphics g, Rectangle bounds)
{
// Refresh process info
Process p = Process.GetCurrentProcess();
p.Refresh();
long mem = Math.Max(0, p.PrivateMemorySize64 - baseMem);
// Display memory stats
string s = string.Format("Total: {0}\r\nCache: {1}\r\nCache*: {2}", Utility.FormatSize(baseMem), Utility.FormatSize(mem), Utility.FormatSize(ImageListView.cacheManager.MemoryUsed));
SizeF sz = g.MeasureString(s, ImageListView.Font);
Rectangle r = new Rectangle(ItemAreaBounds.Right - 120, ItemAreaBounds.Top + 5, 115, (int)sz.Height);
using (Brush b = new SolidBrush(Color.FromArgb(220, Color.LightGray)))
{
g.FillRectangle(b, r);
}
using (Pen pen = new Pen(Color.FromArgb(128, Color.Gray)))
{
g.DrawRectangle(pen, r);
}
g.DrawString(s, ImageListView.Font, Brushes.Black, r.Location);
// Display navigation parameters
r = new Rectangle(ItemAreaBounds.Right - 120, ItemAreaBounds.Top + 5 + (int)sz.Height + 10, 115, 125);
using (Brush b = new SolidBrush(Color.FromArgb(220, Color.LightGray)))
{
g.FillRectangle(b, r);
}
using (Pen pen = new Pen(Color.FromArgb(128, Color.Gray)))
{
g.DrawRectangle(pen, r);
}
// Is left button down?
r = new Rectangle(r.Left + 5, r.Top + 5, 15, 15);
if (ImageListView.navigationManager.LeftButton)
{
g.FillRectangle(Brushes.DarkGray, r);
}
g.DrawRectangle(Pens.Black, r);
r.Offset(15, 0);
r.Offset(15, 0);
// Is right button down?
if (ImageListView.navigationManager.RightButton)
{
g.FillRectangle(Brushes.DarkGray, r);
}
g.DrawRectangle(Pens.Black, r);
r.Offset(-30, 22);
// Is shift key down?
Color tColor = Color.Gray;
if (ImageListView.navigationManager.ShiftKey)
{
tColor = Color.Black;
}
using (Brush b = new SolidBrush(tColor))
{
g.DrawString("Shift", ImageListView.Font, b, r.Location);
}
r.Offset(0, 12);
// Is control key down?
tColor = Color.Gray;
if (ImageListView.navigationManager.ControlKey)
{
tColor = Color.Black;
}
using (Brush b = new SolidBrush(tColor))
{
g.DrawString("Control", ImageListView.Font, b, r.Location);
}
r.Offset(0, 20);
// Display hit test details for item area
ImageListView.HitInfo h = null;
ImageListView.HitTest(ImageListView.PointToClient(Control.MousePosition), out h);
tColor = Color.Gray;
if (h.InItemArea)
{
tColor = Color.Black;
}
using (Brush b = new SolidBrush(tColor))
{
g.DrawString("InItemArea (" + h.ItemIndex.ToString() + ")", ImageListView.Font, b, r.Location);
}
r.Offset(0, 12);
// Display hit test details for column header area
tColor = Color.Gray;
if (h.InHeaderArea)
{
tColor = Color.Black;
}
using (Brush b = new SolidBrush(tColor))
{
g.DrawString("InHeaderArea (" + h.ColumnIndex.ToString() + ")", ImageListView.Font, b, r.Location);
}
r.Offset(0, 12);
// Display hit test details for pane area
tColor = Color.Gray;
if (h.InPaneArea)
{
tColor = Color.Black;
}
using (Brush b = new SolidBrush(tColor))
{
g.DrawString("InPaneArea " + (h.PaneBorder ? " (Border)" : ""), ImageListView.Font, b, r.Location);
}
r.Offset(0, 12);
}
