/// <summary>
/// A constructor for derived classes.
/// </summary>
/// <param name="inPlaceControl">The control to inplace activate</param>
protected VirtualTreeInPlaceControlHelper(Control inPlaceControl)
{
myInPlaceControl = inPlaceControl;
// default flags
myFlags = VirtualTreeInPlaceControls.SizeToText | VirtualTreeInPlaceControls.DisposeControl;
}
/// <summary> /// Called when the Flags value is changed. /// </summary> /// <param name="oldFlags">The old value of the Flags property</param> protected abstract void OnFlagsChanged(VirtualTreeInPlaceControls oldFlags);
/// <summary> /// Called when the Flags value is changed. /// </summary> /// <param name="oldFlags">The old value of the Flags property</param> protected abstract void OnFlagsChanged(VirtualTreeInPlaceControls oldFlags);
/// <summary>
/// A constructor for derived classes.
/// </summary>
/// <param name="inPlaceControl">The control to inplace activate</param>
protected VirtualTreeInPlaceControlHelper(Control inPlaceControl)
{
myInPlaceControl = inPlaceControl;
// default flags
myFlags = VirtualTreeInPlaceControls.SizeToText | VirtualTreeInPlaceControls.DisposeControl;
}
/// <summary>
/// Called when the Flags value is changed.
/// </summary>
/// <param name="oldFlags">The old value of the Flags property</param>
protected override void OnFlagsChanged(VirtualTreeInPlaceControls oldFlags)
{
if (Parent != null)
{
Parent.LabelEditFlagsChanged(oldFlags, Flags);
}
}
private void LabelEditFlagsChanged(VirtualTreeInPlaceControls oldFlags, VirtualTreeInPlaceControls newFlags)
{
if (myInPlaceControl != null)
{
if (0 != ((newFlags & VirtualTreeInPlaceControls.DrawItemText) ^ (oldFlags & VirtualTreeInPlaceControls.DrawItemText)))
{
SetStateFlag(VTCStateFlags.LabelEditTransparent, 0 != (newFlags & VirtualTreeInPlaceControls.DrawItemText));
InvalidateItem(
myEditIndex, myEditColumn, NativeMethods.RedrawWindowFlags.Invalidate | NativeMethods.RedrawWindowFlags.Erase);
}
}
}
