/// <summary>
/// Performs mouse based panning
/// </summary>
/// <param name="e">
/// The <see cref="MouseEventArgs" /> instance containing the event data.
/// </param>
/// <param name="selectionMode">
/// </param>
private void ProcessPanning(MouseEventArgs e, ImageBoxSelectionMode selectionMode)
{
if (fAutoPan && !fViewSize.IsEmpty && selectionMode == ImageBoxSelectionMode.None)
{
if (!fIsPanning && (HScroll || VScroll))
{
fStartMousePosition = e.Location;
IsPanning = true;
}
if (fIsPanning)
{
int x = -fStartScrollPosition.X + (fStartMousePosition.X - e.Location.X);
int y = -fStartScrollPosition.Y + (fStartMousePosition.Y - e.Location.Y);
UpdateScrollPosition(x, y);
}
}
}
/// <summary>
/// Performs mouse based panning
/// </summary>
/// <param name="e">
/// The <see cref="MouseEventArgs" /> instance containing the event data.
/// </param>
/// <param name="selectionMode">
/// </param>
private void ProcessPanning(MouseEventArgs e, ImageBoxSelectionMode selectionMode)
{
Point mpt = new Point(e.Location);
if (fAutoPan && selectionMode == ImageBoxSelectionMode.None)
{
if (!fIsPanning && (HScroll || VScroll))
{
fStartMousePosition = mpt;
IsPanning = true;
}
if (fIsPanning)
{
int dx = -(mpt.X - fStartMousePosition.X);
int dy = -(mpt.Y - fStartMousePosition.Y);
AdjustScroll(dx, dy);
fStartMousePosition = mpt;
}
}
}