// ------------------------------------------------------
//
// Internal Methods
//
// ------------------------------------------------------
#region Internal Methods
// Static implementation for the bounding rectangle. This is used by
// ElementProviderFromPoint to avoid to have to create for a simple
// boundary check
// param "item", ID for the scrollbar bit
// param "sbFlag", SBS_ WindowLong equivallent flag
static internal Rect GetVerticalScrollbarBitBoundingRectangle(IntPtr hwnd, WindowsScrollBar.ScrollBarItem item, NativeMethods.ScrollBarInfo sbi)
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect(sbi.rcScrollBar.left, sbi.xyThumbTop, sbi.rcScrollBar.right, sbi.xyThumbBottom);
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rc, 2))
{
return Rect.Empty;
}
// Vertical Scrollbar
// Since the scrollbar position is already mapped, restore them back
rc.left = sbi.rcScrollBar.left;
rc.right = sbi.rcScrollBar.right;
NativeMethods.SIZE sizeArrow;
using (ThemePart themePart = new ThemePart(hwnd, "SCROLLBAR"))
{
sizeArrow = themePart.Size((int)ThemePart.SCROLLBARPARTS.SBP_ARROWBTN, 0);
}
// check that the 2 buttons can hold in the scroll bar
bool fThumbVisible = sbi.rcScrollBar.bottom - sbi.rcScrollBar.top >= 5 * sizeArrow.cy / 2;
if (sbi.rcScrollBar.bottom - sbi.rcScrollBar.top < 2 * sizeArrow.cy)
{
// the scroll bar is tiny, need to shrink the button
sizeArrow.cy = (sbi.rcScrollBar.bottom - sbi.rcScrollBar.top) / 2;
}
switch (item)
{
case WindowsScrollBar.ScrollBarItem.UpArrow :
rc.top = sbi.rcScrollBar.top;
rc.bottom = sbi.rcScrollBar.top + sizeArrow.cy;
break;
case WindowsScrollBar.ScrollBarItem.LargeIncrement :
if (fThumbVisible)
{
rc.top = rc.bottom;
rc.bottom = sbi.rcScrollBar.bottom - sizeArrow.cy;
}
else
{
rc.top = rc.bottom = sbi.rcScrollBar.top + sizeArrow.cy;
}
break;
case WindowsScrollBar.ScrollBarItem.Thumb :
if (!fThumbVisible)
{
rc.top = rc.bottom = sbi.rcScrollBar.top + sizeArrow.cy;
}
break;
case WindowsScrollBar.ScrollBarItem.LargeDecrement :
if (fThumbVisible)
{
rc.bottom = rc.top;
rc.top = sbi.rcScrollBar.top + sizeArrow.cy;
}
else
{
rc.top = rc.bottom = sbi.rcScrollBar.top + sizeArrow.cy;
}
break;
case WindowsScrollBar.ScrollBarItem.DownArrow :
rc.top = sbi.rcScrollBar.bottom - sizeArrow.cy;
rc.bottom = sbi.rcScrollBar.bottom;
break;
}
// Don't need to normalize, OSVer conditional block converts to absolute coordinates.
return rc.ToRect(false);
}
// ------------------------------------------------------
//
// Internal Methods
//
// ------------------------------------------------------
#region Internal Methods
// Static implementation for the bounding rectangle. This is used by
// ElementProviderFromPoint to avoid to have to create for a simple
// boundary check
// param "item", ID for the scrollbar bit
// param "sbFlag", SBS_ WindowLong equivallent flag
static internal Rect GetHorizontalScrollbarBitBoundingRectangle(IntPtr hwnd, WindowsScrollBar.ScrollBarItem item, NativeMethods.ScrollBarInfo sbi)
{
// Horizontal Scrollbar
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect(sbi.xyThumbTop, sbi.rcScrollBar.top, sbi.xyThumbBottom, sbi.rcScrollBar.bottom);
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rc, 2))
{
return Rect.Empty;
}
// Since the scrollbar position is already mapped, restore them back
rc.top = sbi.rcScrollBar.top;
rc.bottom = sbi.rcScrollBar.bottom;
NativeMethods.SIZE sizeArrow;
using (ThemePart themePart = new ThemePart(hwnd, "SCROLLBAR"))
{
sizeArrow = themePart.Size((int)ThemePart.SCROLLBARPARTS.SBP_ARROWBTN, 0);
}
// check that the 2 buttons can hold in the scroll bar
bool fThumbVisible = sbi.rcScrollBar.right - sbi.rcScrollBar.left >= 5 * sizeArrow.cx / 2;
if (sbi.rcScrollBar.right - sbi.rcScrollBar.left < 2 * sizeArrow.cx)
{
// the scroll bar is tiny, need to shrink the button
sizeArrow.cx = (sbi.rcScrollBar.right - sbi.rcScrollBar.left) / 2;
}
//
// Builds prior to Vista 5359 failed to correctly account for RTL scrollbar layouts.
//
if ((Environment.OSVersion.Version.Major < 6) && (Misc.IsLayoutRTL(hwnd)))
{
if (item == WindowsScrollBar.ScrollBarItem.UpArrow)
{
item = WindowsScrollBar.ScrollBarItem.DownArrow;
}
else if (item == WindowsScrollBar.ScrollBarItem.DownArrow)
{
item = WindowsScrollBar.ScrollBarItem.UpArrow;
}
else if (item == WindowsScrollBar.ScrollBarItem.LargeIncrement)
{
item = WindowsScrollBar.ScrollBarItem.LargeDecrement;
}
else if (item == WindowsScrollBar.ScrollBarItem.LargeDecrement)
{
item = WindowsScrollBar.ScrollBarItem.LargeIncrement;
}
}
switch (item)
{
case WindowsScrollBar.ScrollBarItem.UpArrow :
rc.left = sbi.rcScrollBar.left;
rc.right = sbi.rcScrollBar.left + sizeArrow.cx;
break;
case WindowsScrollBar.ScrollBarItem.LargeIncrement :
if (fThumbVisible)
{
rc.left = rc.right;
rc.right = sbi.rcScrollBar.right - sizeArrow.cx;
}
else
{
rc.left = rc.right = sbi.rcScrollBar.left + sizeArrow.cx;
}
break;
case WindowsScrollBar.ScrollBarItem.Thumb :
if (!fThumbVisible)
{
rc.left = rc.right = sbi.rcScrollBar.left + sizeArrow.cx;
}
break;
case WindowsScrollBar.ScrollBarItem.LargeDecrement :
if (fThumbVisible)
{
rc.right = rc.left;
rc.left = sbi.rcScrollBar.left + sizeArrow.cx;
}
else
{
rc.left = rc.right = sbi.rcScrollBar.left + sizeArrow.cx;
}
break;
case WindowsScrollBar.ScrollBarItem.DownArrow :
rc.left = sbi.rcScrollBar.right - sizeArrow.cx;
rc.right = sbi.rcScrollBar.right;
break;
}
// Don't need to normalize, OSVer conditional block converts to absolute coordinates.
return rc.ToRect(false);
}
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
static internal Rect GetBoundingRectangle(IntPtr hwnd, WindowsUpDown.SpinItem item)
{
NativeMethods.Win32Rect updownRect = new NativeMethods.Win32Rect();
if (!Misc.GetWindowRect(hwnd, ref updownRect))
{
return Rect.Empty;
}
bool fHorz = IsHorizontal(hwnd);
// If the control is horizontal and the WS_EX_LAYOUTRTL is set need to
// swap the button order
if (fHorz && Misc.IsLayoutRTL(hwnd))
{
item = item == SpinItem.DownArrow ? SpinItem.UpArrow : SpinItem.DownArrow;
}
switch (item)
{
case WindowsUpDown.SpinItem.DownArrow:
if (fHorz)
{
int width = (updownRect.right - updownRect.left);
updownRect.right = updownRect.left + width / 2;
}
else
{
int height = (updownRect.bottom - updownRect.top);
updownRect.bottom = updownRect.top + height / 2;
}
// Don't need to normalize, GetWindowRect returns screen coordinates.
return updownRect.ToRect(false);
case WindowsUpDown.SpinItem.UpArrow:
if (fHorz)
{
int width = (updownRect.right - updownRect.left);
updownRect.left = updownRect.left + width / 2;
}
else
{
int height = (updownRect.bottom - updownRect.top);
updownRect.top = updownRect.top + height / 2;
}
// Don't need to normalize, GetWindowRect returns screen coordinates.
return updownRect.ToRect(false);
}
return Rect.Empty;
}