// ------------------------------------------------------
//
// 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);
}
// ------------------------------------------------------
//
// Private Methods
//
// ------------------------------------------------------
#region Private Methods
private unsafe NativeMethods.Win32Rect BoundingRect()
{
NativeMethods.Win32Rect rectW32 = new NativeMethods.Win32Rect();
if (!XSendMessage.XSend(_hwnd, NativeMethods.TCM_GETITEMRECT, new IntPtr(_item), new IntPtr(&rectW32), Marshal.SizeOf(rectW32.GetType()), XSendMessage.ErrorValue.Zero))
{
return NativeMethods.Win32Rect.Empty;
}
return Misc.MapWindowPoints(_hwnd, IntPtr.Zero, ref rectW32, 2) ? rectW32 : NativeMethods.Win32Rect.Empty;
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
for (SItem item = SItem.LargeDecrement; (int) item <= (int) SItem.LargeIncrement; item = (SItem) ((int) item + 1))
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect (SliderItem.GetBoundingRectangle (_hwnd, item, _fHorizontal));
if (Misc.PtInRect(ref rc, x, y))
{
return CreateSliderItem (item);
}
}
return null;
}
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
static internal bool IsGripPresent(IntPtr hwnd, bool onStatusBar)
{
NativeMethods.Win32Rect client = new NativeMethods.Win32Rect();
if (!Misc.GetClientRectInScreenCoordinates(hwnd, ref client))
{
return false;
}
// According to the documentation of GetClientRect, the left and top members are zero. So if
// they are negitive the control must be minimized, therefore the grip is not present.
if (client.left < 0 && client.top < 0 )
{
return false;
}
NativeMethods.SIZE sizeGrip = GetGripSize(hwnd, onStatusBar);
if (!onStatusBar)
{
// When not on a status bar the grip should be out side of the client area.
sizeGrip.cx *= -1;
sizeGrip.cy *= -1;
}
if (Misc.IsLayoutRTL(hwnd))
{
int x = client.left + (int)(sizeGrip.cx / 2);
int y = client.bottom - (int)(sizeGrip.cy / 2);
int hit = Misc.ProxySendMessageInt(hwnd, NativeMethods.WM_NCHITTEST, IntPtr.Zero, NativeMethods.Util.MAKELPARAM(x, y));
return hit == NativeMethods.HTBOTTOMLEFT;
}
else
{
int x = client.right - (int)(sizeGrip.cx / 2);
int y = client.bottom - (int)(sizeGrip.cy / 2);
int hit = Misc.ProxySendMessageInt(hwnd, NativeMethods.WM_NCHITTEST, IntPtr.Zero, NativeMethods.Util.MAKELPARAM(x, y));
return hit == NativeMethods.HTBOTTOMRIGHT;
}
}
// determine the number of lines that are visible in the Edit control.
// if there is no scrollbar then this is the actual number of lines displayed.
internal int LinesPerPage()
{
int linePerPage = 0;
if (Misc.IsBitSet(WindowStyle, NativeMethods.WS_VSCROLL))
{
// we call GetScrollInfo and return the size of the "page"
NativeMethods.ScrollInfo si = new NativeMethods.ScrollInfo();
si.cbSize = System.Runtime.InteropServices.Marshal.SizeOf(typeof(NativeMethods.ScrollInfo));
si.fMask = NativeMethods.SIF_ALL;
bool ok = Misc.GetScrollInfo(WindowHandle, NativeMethods.SB_VERT, ref si);
linePerPage = ok ? si.nPage : 0;
if (IsMultiline && linePerPage <= 0)
{
linePerPage = 1;
}
}
else
{
NativeMethods.Win32Rect rect = new NativeMethods.Win32Rect();
if (Misc.GetClientRect(_hwnd, ref rect) && !rect.IsEmpty)
{
NativeMethods.SIZE size;
string s = new string('E', 1);
GetTextExtentPoint32(s, out size);
if (size.cy != 0)
{
linePerPage = (rect.bottom - rect.top) / size.cy;
}
}
}
return linePerPage;
}
internal static extern int MapWindowPoints(IntPtr hWndFrom, IntPtr hWndTo, [In, Out] ref NativeMethods.Win32Rect rect, int cPoints);
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint(int x, int y)
{
ProxySimple proxyElement = null;
// Convert screen to client coords.
NativeMethods.Win32Point pt = new NativeMethods.Win32Point(x, y);
if (Misc.MapWindowPoints(System.IntPtr.Zero, _hwnd, ref pt, 1))
{
// GetClientRect
NativeMethods.Win32Rect clientRect = new NativeMethods.Win32Rect();
if(Misc.GetClientRect(_hwnd, ref clientRect))
{
if (Misc.PtInRect(ref clientRect, pt.x, pt.y))
{
int column = (pt.x - _altTabInfo.ptStart.x) / _altTabInfo.cxItem;
int row = (pt.y - _altTabInfo.ptStart.y) / _altTabInfo.cyItem;
if (column >= 0 && column < Columns && row >= 0 && row < Rows)
{
proxyElement = CreateAltTabItem(ItemIndex(row, column));
}
}
}
}
if (proxyElement == null)
{
proxyElement = base.ElementProviderFromPoint(x, y);
}
return proxyElement;
}
static internal bool IsItemVisible(ref Rect parentRect, ref Rect itemRect)
{
NativeMethods.Win32Rect itemRc = new NativeMethods.Win32Rect(itemRect);
NativeMethods.Win32Rect parentRc = new NativeMethods.Win32Rect(parentRect);
NativeMethods.Win32Rect intersection = new NativeMethods.Win32Rect(0, 0, 0, 0);
// Returns true if the passed in itemRect overlaps with the client area of the hwnd this API
// does not modify clientRect or itemRect
return IntersectRect(ref intersection, ref parentRc, ref itemRc);
}
internal static extern IntPtr MonitorFromRect(ref NativeMethods.Win32Rect rect, int dwFlags);
internal static extern bool GetWindowRect(IntPtr hWnd, [In, Out] ref NativeMethods.Win32Rect rect);
public static extern bool GetMenuItemRect(IntPtr hWnd, IntPtr hMenu, int uItem, out NativeMethods.Win32Rect lprcItem);
internal static extern bool UnionRect(out NativeMethods.Win32Rect rcDst, ref NativeMethods.Win32Rect rc1, ref NativeMethods.Win32Rect rc2);
public static extern bool IntersectRect(ref NativeMethods.Win32Rect rcDest, ref NativeMethods.Win32Rect rc1, ref NativeMethods.Win32Rect rc2);
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
for (ScrollBarItem item = ScrollBarItem.UpArrow; (int) item <= (int) ScrollBarItem.DownArrow; item = (ScrollBarItem) ((int) item + 1))
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect(WindowsScrollBarBits.GetBoundingRectangle(_hwnd, this, item, _sbFlag));
if (Misc.PtInRect(ref rc, x, y))
{
return new WindowsScrollBarBits (_hwnd, this, (int) item, _sbFlag);
}
}
return this;
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private NativeMethods.Win32Rect GetBoundingRect()
{
int columns = this._altTab._altTabInfo.cColumns;
int cxItem = this._altTab._altTabInfo.cxItem;
int cyItem = this._altTab._altTabInfo.cyItem;
int row = _item / columns;
int column = _item % columns;
NativeMethods.Win32Point ptStart = this._altTab._altTabInfo.ptStart;
int left = ptStart.x + column * cxItem;
int top = ptStart.y + row * cyItem;
NativeMethods.Win32Rect itemRect =
new NativeMethods.Win32Rect(left, top, left + cxItem, top + cyItem);
if(!Misc.MapWindowPoints(_hwnd, IntPtr.Zero, ref itemRect, 2))
{
// MapWindowPoints() failed.
itemRect = NativeMethods.Win32Rect.Empty;
}
return itemRect;
}
internal static bool GetClientRectInScreenCoordinates(IntPtr hwnd, ref NativeMethods.Win32Rect rc)
{
rc = NativeMethods.Win32Rect.Empty;
if (!GetClientRect(hwnd, ref rc))
{
return false;
}
NativeMethods.Win32Point leftTop = new NativeMethods.Win32Point(rc.left, rc.top);
if (!MapWindowPoints(hwnd, IntPtr.Zero, ref leftTop, 1))
{
return false;
}
NativeMethods.Win32Point rightBottom = new NativeMethods.Win32Point(rc.right, rc.bottom);
if (!MapWindowPoints(hwnd, IntPtr.Zero, ref rightBottom, 1))
{
return false;
}
rc = new NativeMethods.Win32Rect(leftTop.x, leftTop.y, rightBottom.x, rightBottom.y);
return true;
}
internal static IRawElementProviderSimple Create(IntPtr hwnd, int idChild)
{
if (!UnsafeNativeMethods.IsWindow(hwnd))
{
return null;
}
System.Diagnostics.Debug.Assert(idChild == 0, string.Format(CultureInfo.CurrentCulture, "Invalid Child Id, idChild == {2}\n\rClassName: \"{0}\"\n\rhwnd = 0x{1:x8}", Misc.ProxyGetClassName(hwnd), hwnd.ToInt32(), idChild));
NativeMethods.Win32Rect clientRect = new NativeMethods.Win32Rect();
NativeMethods.Win32Rect windowRect = new NativeMethods.Win32Rect();
try
{
bool hasNonClientControls =
// Note: GetClientRect will do MapWindowsPoints
Misc.GetClientRectInScreenCoordinates(hwnd, ref clientRect)
&& Misc.GetWindowRect(hwnd, ref windowRect)
&& !windowRect.Equals(clientRect);
if(hasNonClientControls || WindowsFormsHelper.IsWindowsFormsControl(hwnd))
{
return new NonClientArea(hwnd);
}
return null;
}
catch (ElementNotAvailableException)
{
return null;
}
}
// This constructor should only be called with LVGROUP is a 32 bit structure
internal TOOLINFO_64(NativeMethods.TOOLINFO item)
{
cbSize = Marshal.SizeOf(typeof(TOOLINFO_64));
uFlags = item.uFlags;
hwnd = (long)item.hwnd;
uId = item.uId;
rect = item.rect;
hinst = (long)item.hinst;
pszText = (long)item.pszText;
lParam = (long)item.lParam;
}
// Process all the Element Properties
internal override object GetElementProperty (AutomationProperty idProp)
{
if (idProp == AutomationElement.AcceleratorKeyProperty)
{
string acceleratorKey = AcceleratorKey;
if (!string.IsNullOrEmpty(acceleratorKey))
return AcceleratorKey;
}
else if (idProp == AutomationElement.IsEnabledProperty)
{
// If an element in the parent chain is disabled there is not point in checking the menu
if (!Misc.IsEnabled(_hwnd))
return false;
return IsEnabledMenu;
}
else if (idProp == AutomationElement.AccessKeyProperty)
{
return GetAccessKey();
}
else if (idProp == AutomationElement.IsKeyboardFocusableProperty)
{
return _type != MenuItemType.Spacer;
}
else if (idProp == AutomationElement.HasKeyboardFocusProperty)
{
// The check for the focused window fails!!!
return IsFocused ();
}
else if (idProp == AutomationElement.IsOffscreenProperty)
{
// Even if the menu item that is the parent to a popup menu is off the screen
// the popup menu will be displayed on the screen, so must override the
// default action of checking the parent.
Rect itemRect = BoundingRectangle;
if (itemRect.IsEmpty)
{
return true;
}
// if this element is not on any monitor than it is off the screen.
NativeMethods.Win32Rect itemWin32Rect = new NativeMethods.Win32Rect(itemRect);
return UnsafeNativeMethods.MonitorFromRect(ref itemWin32Rect, UnsafeNativeMethods.MONITOR_DEFAULTTONULL) == IntPtr.Zero;
}
return base.GetElementProperty (idProp);
}
internal static extern IntPtr SendMessageTimeout(IntPtr hwnd, int uMsg, IntPtr wParam, ref NativeMethods.Win32Rect lParam, int flags, int uTimeout, out IntPtr result);
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
for (SpinItem item = SpinItem.DownArrow; item <= SpinItem.UpArrow; item++)
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect (SpinButtonItem.GetBoundingRectangle (_hwnd, item));
if (Misc.PtInRect(ref rc, x, y))
{
return CreateSpinButtonItem (item);
}
}
return this;
}
// To test if a list view item is offscreen, we need to
// take into account the fact that it may be obscured by
// the list view header.
internal override bool IsOffscreen()
{
IntPtr hwndHeader = WindowsListView.ListViewGetHeader(_hwnd);
if (hwndHeader != IntPtr.Zero)
{
NativeMethods.Win32Rect listViewRect = new NativeMethods.Win32Rect();
NativeMethods.Win32Rect headerRect = new NativeMethods.Win32Rect();
if (Misc.GetWindowRect(hwndHeader, ref headerRect)
&& Misc.GetClientRectInScreenCoordinates(_hwnd, ref listViewRect))
{
// Remove the listview header rect.
listViewRect.top = headerRect.bottom;
NativeMethods.Win32Rect itemRect =
new NativeMethods.Win32Rect(BoundingRectangle);
if (!listViewRect.IsEmpty
&& !Misc.IsItemVisible(ref listViewRect, ref itemRect))
{
return true;
}
}
}
return false;
}
// Same as a click on one of the button Up or Down
void IInvokeProvider.Invoke ()
{
// Make sure that the control is enabled
if (!SafeNativeMethods.IsWindowEnabled(_hwnd))
{
throw new ElementNotEnabledException();
}
// NOTE: The GetBoundingRectangel() will swap the buttons to retrieve
// the correct rectangle based on the WS_EX_LAYOUTRTL bit. But the
// SendMessages WM_LBUTTONDOWN and WM_LBUTTONUP also swaps the buttons
// on the WS_EX_LAYOUTRTL bit. So need to send the center point of
// button before the swap to get the SendMessage to apply it to the
// correct button.
int item = _item;
// If the control is horizontal and the WS_EX_LAYOUTRTL is set need to
// swap the button order
if (IsHorizontal(_hwnd) && Misc.IsLayoutRTL(_hwnd))
{
item = 1 - item;
}
// does the control have vertical scrolling buttons
Rect rc = GetBoundingRectangle(_hwnd, (WindowsUpDown.SpinItem)item);
NativeMethods.Win32Rect updownRect = new NativeMethods.Win32Rect();
if (!Misc.GetWindowRect(_hwnd, ref updownRect))
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
int x = (int) rc.Left - updownRect.left + (int) rc.Width / 2;
int y = (int) rc.Top - updownRect.top + (int) rc.Height / 2;
IntPtr center = NativeMethods.Util.MAKELPARAM (x, y);
// the message does not seems to operate, fake a mouse action instead
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONDOWN, (IntPtr)NativeMethods.MK_LBUTTON, center);
Misc.ProxySendMessage(_hwnd, NativeMethods.WM_LBUTTONUP, (IntPtr)NativeMethods.MK_LBUTTON, center);
}
// ------------------------------------------------------
//
// Internal Methods
//
// ------------------------------------------------------
#region Internal Methods
// Returns the bounding rectangle of the control.
internal static Rect GetBoundingRectangle (IntPtr hwnd, WindowsSlider.SItem item, bool fHorizontal)
{
NativeMethods.Win32Rect rcChannel = new NativeMethods.Win32Rect ();
rcChannel.left = rcChannel.right = rcChannel.top = rcChannel.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETCHANNELRECT, IntPtr.Zero, new IntPtr(&rcChannel), Marshal.SizeOf(rcChannel.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcChannel, 2))
{
return Rect.Empty;
}
NativeMethods.Win32Rect rcThumb = new NativeMethods.Win32Rect();
rcThumb.left = rcThumb.right = rcThumb.top = rcThumb.bottom = 1000;
unsafe
{
XSendMessage.XSend(hwnd, NativeMethods.TBM_GETTHUMBRECT, IntPtr.Zero, new IntPtr(&rcThumb), Marshal.SizeOf(rcThumb.GetType()), XSendMessage.ErrorValue.NoCheck);
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rcThumb, 2))
{
return Rect.Empty;
}
if (fHorizontal)
{
// When WS_EX_RTLREADING is set swap the increment and decrement bars.
if (Misc.IsLayoutRTL(hwnd))
{
if (item == SItem.LargeDecrement)
{
item = SItem.LargeIncrement;
}
else if (item == SItem.LargeIncrement)
{
item = SItem.LargeDecrement;
}
}
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, rcThumb.left - rcChannel.left, rcChannel.bottom - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcThumb.right, rcChannel.top, rcChannel.right - rcThumb.right, rcChannel.bottom - rcChannel.top);
}
}
else
{
int dx = rcChannel.bottom - rcChannel.top;
int dy = rcChannel.right - rcChannel.left;
switch (item)
{
case WindowsSlider.SItem.LargeDecrement :
return new Rect (rcChannel.left, rcChannel.top, dx, rcThumb.top - rcChannel.top);
case WindowsSlider.SItem.Thumb :
return new Rect (rcThumb.left, rcThumb.top, rcThumb.right - rcThumb.left, rcThumb.bottom - rcThumb.top);
case WindowsSlider.SItem.LargeIncrement :
return new Rect (rcChannel.left, rcThumb.bottom, dx, dy);
}
}
return Rect.Empty;
}
//------------------------------------------------------
//
// 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;
}
// ------------------------------------------------------
//
// 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);
}
//------------------------------------------------------
//
// Private Methods
//
//------------------------------------------------------
#region Private Methods
private NativeMethods.Win32Rect BoundingRect()
{
NativeMethods.Win32Rect itemRect = new NativeMethods.Win32Rect();
Misc.ProxySendMessage(_hwnd, NativeMethods.LB_GETITEMRECT, new IntPtr(_item), ref itemRect);
return Misc.MapWindowPoints(_hwnd, IntPtr.Zero, ref itemRect, 2) ? itemRect : NativeMethods.Win32Rect.Empty;
}
// Check if a point is within the client Rect of a window
static protected bool PtInClientRect (IntPtr hwnd, int x, int y)
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect ();
if (!Misc.GetClientRect(hwnd, ref rc))
{
return false;
}
if (!Misc.MapWindowPoints(hwnd, IntPtr.Zero, ref rc, 2))
{
return false;
}
return x >= rc.left && x < rc.right && y >= rc.top && y < rc.bottom;
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
NativeMethods.Win32Rect listboxrect = new NativeMethods.Win32Rect ();
Misc.GetClientRectInScreenCoordinates(_hwnd, ref listboxrect);
if (Misc.PtInRect(ref listboxrect, x, y))
{
int ret = Misc.ProxySendMessageInt(_hwnd, NativeMethods.LB_ITEMFROMPOINT, IntPtr.Zero, NativeMethods.Util.MAKELPARAM(x - listboxrect.left, y - listboxrect.top));
if (NativeMethods.Util.HIWORD(ret) == 0)
{
int index = NativeMethods.Util.LOWORD(ret);
return CreateListboxItem(index);
}
}
return base.ElementProviderFromPoint (x, y);
}
// Returns a Proxy element corresponding to the specified screen coordinates.
internal override ProxySimple ElementProviderFromPoint (int x, int y)
{
int x1 = x;
int y1 = y;
NativeMethods.Win32Rect rebarRect = new NativeMethods.Win32Rect ();
if (!Misc.GetWindowRect(_hwnd, ref rebarRect))
{
return null;
}
if (x >= rebarRect.left && x <= rebarRect.right &&
y >= rebarRect.top && y <= rebarRect.bottom)
{
x = x - rebarRect.left;
y = y - rebarRect.top;
NativeMethods.Win32Point pt = new NativeMethods.Win32Point (x, y);
int BandID = getRebarBandIDFromPoint (pt);
if (-1 != BandID)
{
return CreateRebarItem (BandID).ElementProviderFromPoint (x1, y1);
}
}
return null;
}
ITextRangeProvider ITextProvider.RangeFromPoint(Point screenLocation)
{
// convert screen to client coordinates.
// (Essentially ScreenToClient but MapWindowPoints accounts for window mirroring using WS_EX_LAYOUTRTL.)
NativeMethods.Win32Point clientLocation = (NativeMethods.Win32Point)screenLocation;
if (!Misc.MapWindowPoints(IntPtr.Zero, WindowHandle, ref clientLocation, 1))
{
return null;
}
// we have to deal with the possibility that the coordinate is inside the window rect
// but outside the client rect. in that case we just scoot it over so it is at the nearest
// point in the client rect.
NativeMethods.Win32Rect clientRect = new NativeMethods.Win32Rect();
if (!Misc.GetClientRect(WindowHandle, ref clientRect))
{
return null;
}
clientLocation.x = Math.Max(clientLocation.x, clientRect.left);
clientLocation.x = Math.Min(clientLocation.x, clientRect.right);
clientLocation.y = Math.Max(clientLocation.y, clientRect.top);
clientLocation.y = Math.Min(clientLocation.y, clientRect.bottom);
// get the character at those client coordinates
int start = CharFromPosEx(clientLocation);
return new WindowsEditBoxRange(this, start, start);
}
// Check if a point is within the client Rect of a window
internal static bool PtInWindowRect(IntPtr hwnd, int x, int y)
{
NativeMethods.Win32Rect rc = new NativeMethods.Win32Rect();
if (!GetWindowRect(hwnd, ref rc))
{
return false;
}
return x >= rc.left && x < rc.right && y >= rc.top && y < rc.bottom;
}
// send an EM_GETRECT message to find out the bounding rectangle
internal Rect GetRect()
{
NativeMethods.Win32Rect rect = new NativeMethods.Win32Rect();
Misc.ProxySendMessage(WindowHandle, NativeMethods.EM_GETRECT, IntPtr.Zero, ref rect);
return new Rect(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
}
// this is to determine is an item is visible. The assumption is that the items here are not hwnds
// and that they are clipped by there parent. For example this is called by the WindowsListBox.
// In that case the hwnd is the list box and the itemRect would be a list item this code checks to see
// if the item is scrolled out of view.
static internal bool IsItemVisible(IntPtr hwnd, ref NativeMethods.Win32Rect itemRect)
{
NativeMethods.Win32Rect clientRect = new NativeMethods.Win32Rect(0, 0, 0, 0);
if (!GetClientRectInScreenCoordinates(hwnd, ref clientRect))
return false;
NativeMethods.Win32Rect intersection = new NativeMethods.Win32Rect(0, 0, 0, 0);
// Returns true if the passed in itemRect overlaps with the client area of the hwnd this API
// does not modify clientRect or itemRect
return IntersectRect(ref intersection, ref clientRect, ref itemRect);
}
internal void GetVisibleRangePoints(out int start, out int end)
{
start = 0;
end = 0;
NativeMethods.Win32Rect rect = new NativeMethods.Win32Rect();
if (Misc.GetClientRect(_hwnd, ref rect) && !rect.IsEmpty)
{
NativeMethods.SIZE size;
string s = new string('E', 1);
GetTextExtentPoint32(s, out size);
NativeMethods.Win32Point ptStart = new NativeMethods.Win32Point((int)(rect.left + size.cx / 4), (int)(rect.top + size.cy / 4));
NativeMethods.Win32Point ptEnd = new NativeMethods.Win32Point((int)(rect.right - size.cx / 8), (int)(rect.bottom - size.cy / 4));
start = CharFromPosEx(ptStart);
end = CharFromPosEx(ptEnd);
if (start > 0)
{
Point pt = PosFromChar(start);
if (pt.X < rect.left)
{
start++;
}
}
}
else
{
// multi-line edit controls are handled differently than single-line edit controls.
if (IsMultiline)
{
// get the line number of the first visible line and start the range at
// the beginning of that line.
int firstLine = GetFirstVisibleLine();
start = LineIndex(firstLine);
// calculate the line number of the first line scrolled off the bottom and
// end the range at the beginning of that line.
end = LineIndex(firstLine + LinesPerPage());
}
else
{
// single-line edit control
// the problem is that using a variable-width font the number of characters visible
// depends on the text that is in the edit control. so we can't just divide the
// width of the edit control by the width of a character.
// so instead we do a binary search of the characters from the first visible character
// to the end of the text to find the visibility boundary.
Rect r = GetRect();
int limit = GetTextLength();
start = GetFirstVisibleChar();
int lo = start; // known visible
int hi = limit; // known non-visible
while (lo + 1 < hi)
{
int mid = (lo + hi) / 2;
Point pt = PosFromChar(mid);
if (pt.X >= r.Left && pt.X < r.Right)
{
lo = mid;
}
else
{
hi = mid;
}
}
// trim off one character unless the range is empty or reaches the end.
end = hi > start && hi < limit ? hi - 1 : hi;
}
}
}
internal override bool IsOffscreen()
{
Rect itemRect = BoundingRectangle;
if (itemRect.IsEmpty)
{
return true;
}
// Sub-TreeViewItems are not with in the parents bounding rectangle. So check if
// the sub item is visible with in the whole control.
ProxySimple parent;
ProxySimple current = this;
do
{
parent = current.GetParent();
if (parent is WindowsTreeView)
{
break;
}
current = parent;
} while (parent != null);
if (parent != null)
{
if ((bool)parent.GetElementProperty(AutomationElement.IsOffscreenProperty))
{
return true;
}
// Now check to see if this item in visible on its parent
Rect parentRect = parent.BoundingRectangle;
if (!parentRect.IsEmpty && !Misc.IsItemVisible(ref parentRect, ref itemRect))
{
return true;
}
}
// if this element is not on any monitor than it is off the screen.
NativeMethods.Win32Rect itemWin32Rect = new NativeMethods.Win32Rect(itemRect);
return UnsafeNativeMethods.MonitorFromRect(ref itemWin32Rect, UnsafeNativeMethods.MONITOR_DEFAULTTONULL) == IntPtr.Zero;
}
// This constructor should only be called with TOOLINFO is a 64 bit structure
internal TOOLINFO_32(NativeMethods.TOOLINFO item)
{
cbSize = Marshal.SizeOf(typeof(TOOLINFO_32));
uFlags = item.uFlags;
hwnd = item.hwnd.ToInt32();
uId = item.uId;
rect = item.rect;
hinst = unchecked((int)item.hinst);
pszText = 0;
lParam = unchecked((int)item.lParam);
}