private void AdjustWindow(bool updateScroll)
{
bool hasFocus = false;
if (_originalControl != null)
hasFocus = _originalControl.Focused;
try
{
if (_targetHandle != IntPtr.Zero)
{
if (_referenceControl is ComboBox)
{
RECT clientRectangle = new RECT();
GetClientRect(_targetHandle, out clientRectangle);
Point p1 = new Point(clientRectangle.Left, clientRectangle.Top);
Point p2 = new Point(clientRectangle.Right, clientRectangle.Bottom);
ClientToScreen(_targetHandle, ref p1);
ClientToScreen(_targetHandle, ref p2);
clientRectangle.Left = p1.X;
clientRectangle.Top = p1.Y;
clientRectangle.Right = p2.X;
clientRectangle.Bottom = p2.Y;
int systemScrollWidth = GetSystemMetrics(SystemMetric.SM_CXVSCROLL);
int nBorder = GetSystemMetrics(SystemMetric.SM_CXBORDER);
int wndStyle = GetWindowLong(_targetHandle, GWL_STYLE);
int wndStyleEx = GetWindowLong(_targetHandle, GWL_EXSTYLE);
bool leftScroll = ((wndStyleEx & WS_EX_LEFTSCROLLBAR) != 0);
bool vScroll = ((wndStyle & WS_VSCROLL) != 0);
if (vScroll)
{
if (_vScrollBar == null)
{
if (UpdateParent())
{
_vScrollBar = new ScrollBarEx();
long targetStyleEx = GetWindowLong(_vScrollBar.Handle, GWL_EXSTYLE);
targetStyleEx |= WS_EX_TOOLWINDOW;
//ShowWindow(_vScrollBar.Handle, SW_HIDE);
SetWindowLong(_vScrollBar.Handle, GWL_EXSTYLE, (IntPtr)targetStyleEx);
//ShowWindow(_vScrollBar.Handle, SW_SHOW);
_vScrollBar.Orientation = ScrollOrientation.VerticalScroll;
SetParent(_vScrollBar.Handle, GetParent(_targetHandle));
}
}
}
if (_vScrollBar != null)
{
if (vScroll && IsWindowVisible(_targetHandle))
{
_vScrollBar.Visible = true;
SetWindowPos(_vScrollBar.Handle, HWND_TOPMOST, clientRectangle.Right, clientRectangle.Top, systemScrollWidth, clientRectangle.Bottom - clientRectangle.Top, SetWindowPosFlags.SHOWWINDOW);
SetColors(_vScrollBar);
}
else
_vScrollBar.Visible = false;
}
}
else if (_referenceControl is DataGridView)
{
foreach (Control c in _referenceControl.Controls)
{
if (c is VScrollBar)
_targetVScrollBar = (ScrollBar)c;
else if (c is HScrollBar)
_targetHScrollBar = (ScrollBar)c;
}
if ((_targetVScrollBar != null) && (_targetVScrollBar.Visible))
{
if (UpdateParent())
{
if (_vScrollBar == null)
{
_vScrollBar = new ScrollBarEx();
_vScrollBar.Orientation = ScrollOrientation.VerticalScroll;
_vScrollBar.Parent = _parentControl;
_vScrollBar.Scroll += new ScrollEventHandler(OnScroll);
}
Rectangle rect = _targetVScrollBar.Parent.RectangleToScreen(_targetVScrollBar.Bounds);
rect = _parentControl.RectangleToClient(rect);
_vScrollBar.Location = rect.Location;
_vScrollBar.Size = rect.Size;
}
}
if (_vScrollBar != null)
{
if ((_targetVScrollBar != null) && (_targetVScrollBar.Visible))
{
_vScrollBar.Visible = true;
_vScrollBar.BringToFront();
SetColors(_vScrollBar);
}
else
_vScrollBar.Visible = false;
}
if ((_targetHScrollBar != null) && (_targetHScrollBar.Visible))
{
if (UpdateParent())
{
if (_hScrollBar == null)
{
_hScrollBar = new ScrollBarEx();
_hScrollBar.Orientation = ScrollOrientation.HorizontalScroll;
_hScrollBar.Parent = _parentControl;
_hScrollBar.Scroll += new ScrollEventHandler(OnScroll);
}
Rectangle rect = _targetVScrollBar.Parent.RectangleToScreen(_targetHScrollBar.Bounds);
rect = _parentControl.RectangleToClient(rect);
_hScrollBar.Location = rect.Location;
_hScrollBar.Size = rect.Size;
}
}
if (_hScrollBar != null)
{
if ((_targetHScrollBar != null) && (_targetHScrollBar.Visible))
{
_hScrollBar.Visible = true;
_hScrollBar.BringToFront();
SetColors(_hScrollBar);
}
else
_hScrollBar.Visible = false;
}
}
else
{
int systemScrollWidth = GetSystemMetrics(SystemMetric.SM_CXVSCROLL);
int nBorder = GetSystemMetrics(SystemMetric.SM_CXBORDER);
int wndStyle = GetWindowLong(_targetHandle, GWL_STYLE);
int wndStyleEx = GetWindowLong(_targetHandle, GWL_EXSTYLE);
bool leftScroll = ((wndStyleEx & WS_EX_LEFTSCROLLBAR) != 0);
bool vScroll = ((wndStyle & WS_VSCROLL) != 0) || (_referenceControl is PropertyGrid);
bool hScroll = ((wndStyle & WS_HSCROLL) != 0) || (_referenceControl is PropertyGrid);
if (vScroll || hScroll)
{
if (UpdateParent())
{
RECT clientRectangle = new RECT();
GetClientRect(_targetHandle, out clientRectangle);
Point p1 = new Point(clientRectangle.Left, clientRectangle.Top);
Point p2 = new Point(clientRectangle.Right, clientRectangle.Bottom);
ClientToScreen(_targetHandle, ref p1);
ClientToScreen(_targetHandle, ref p2);
clientRectangle.Left = p1.X;
clientRectangle.Top = p1.Y;
clientRectangle.Right = p2.X;
clientRectangle.Bottom = p2.Y;
RECT fullRectangle = new RECT();
GetClientRect(_parentControl.Handle, out fullRectangle);
p1 = new Point(fullRectangle.Left, fullRectangle.Top);
p2 = new Point(fullRectangle.Right, fullRectangle.Bottom);
ClientToScreen(_parentControl.Handle, ref p1);
ClientToScreen(_parentControl.Handle, ref p2);
fullRectangle.Left = p1.X;
fullRectangle.Top = p1.Y;
fullRectangle.Right = p2.X;
fullRectangle.Bottom = p2.Y;
if (vScroll)
{
if (_vScrollBar == null)
{
_vScrollBar = new ScrollBarEx();
_vScrollBar.Orientation = ScrollOrientation.VerticalScroll;
_vScrollBar.Parent = _parentControl;
_vScrollBar.Scroll += new ScrollEventHandler(OnScroll);
}
_vScrollBar.Size = new Size(systemScrollWidth, (clientRectangle.Bottom - clientRectangle.Top));
_vScrollBar.Location = new Point(clientRectangle.Left - fullRectangle.Left + (clientRectangle.Right - clientRectangle.Left) - 1 + nBorder, clientRectangle.Top - fullRectangle.Top);
}
if (hScroll)
{
if (_hScrollBar == null)
{
_hScrollBar = new ScrollBarEx();
_hScrollBar.Orientation = ScrollOrientation.HorizontalScroll;
_hScrollBar.Parent = _parentControl;
_hScrollBar.Scroll += new ScrollEventHandler(OnScroll);
}
_hScrollBar.Size = new Size(clientRectangle.Right - clientRectangle.Left, systemScrollWidth);
_hScrollBar.Location = new Point(clientRectangle.Left - fullRectangle.Left, clientRectangle.Top - fullRectangle.Top + (clientRectangle.Bottom - clientRectangle.Top) - 1 + nBorder);
}
if (leftScroll)
{
if (vScroll)
{
_vScrollBar.Location = new Point(clientRectangle.Left - fullRectangle.Left - _vScrollBar.Width, clientRectangle.Top - fullRectangle.Top);
if (_hScrollBar != null)
_hScrollBar.Left = _vScrollBar.Right;
}
}
}
}
if (_vScrollBar != null)
{
if (vScroll && _referenceControl.Visible)
{
_vScrollBar.Visible = true;
_vScrollBar.BringToFront();
SetColors(_vScrollBar);
}
else
_vScrollBar.Visible = false;
}
if (_hScrollBar != null)
{
if (hScroll && _referenceControl.Visible)
{
_hScrollBar.Visible = true;
_hScrollBar.BringToFront();
SetColors(_hScrollBar);
}
else
_hScrollBar.Visible = false;
}
}
if (updateScroll)
UpdateScrollBars();
}
}
catch { }
if (hasFocus)
{
if (!_originalControl.Focused)
_originalControl.Focus();
}
}
private void OriginalControlParentChanged(object sender, EventArgs e)
{
if ((((Control)sender).Parent != null) && (((Control)sender).Parent != _parentControl))
{
_vScrollBar = null;
_hScrollBar = null;
_originalParentControl = ((Control)sender).Parent;
_parentControl = null;
AdjustWindow(true);
}
}
private void ReferenceControlHandleCreated(object sender, EventArgs e)
{
if (InitializeHandle(_originalControl))
{
if ((_originalControl.Parent != null) && (_originalControl.Parent != _parentControl))
{
_vScrollBar = null;
_hScrollBar = null;
_originalParentControl = _originalControl.Parent;
_parentControl = null;
AdjustWindow(true);
}
}
}
private void SetColors(ScrollBarEx scrollBar)
{
if ((scrollBar.NormalColor != ScrollBarSkinner.NormalColor) && (!ScrollBarSkinner.NormalColor.IsEmpty))
scrollBar.NormalColor = ScrollBarSkinner.NormalColor;
if ((scrollBar.HoverColor != ScrollBarSkinner.HoverColor) && (!ScrollBarSkinner.HoverColor.IsEmpty))
scrollBar.HoverColor = ScrollBarSkinner.HoverColor;
if ((scrollBar.PressedColor != ScrollBarSkinner.PressedColor) && (!ScrollBarSkinner.PressedColor.IsEmpty))
scrollBar.PressedColor = ScrollBarSkinner.PressedColor;
if ((scrollBar.BackColor != ScrollBarSkinner.BackColor) && (!ScrollBarSkinner.BackColor.IsEmpty))
scrollBar.BackColor = ScrollBarSkinner.BackColor;
if ((scrollBar.TrackColor != ScrollBarSkinner.TrackColor) && (!ScrollBarSkinner.TrackColor.IsEmpty))
scrollBar.TrackColor = ScrollBarSkinner.TrackColor;
if ((scrollBar.TrackPressedColor != ScrollBarSkinner.TrackPressedColor) && (!ScrollBarSkinner.TrackPressedColor.IsEmpty))
scrollBar.TrackPressedColor = ScrollBarSkinner.TrackPressedColor;
}