//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
// retrieve bounding rectangle of the listview checkbox
internal static NativeMethods.Win32Rect ListViewCheckBoxRect(IntPtr hwnd, int item)
{
// Rare special case
if (WindowsListView.FullRowSelect(hwnd) && WindowsListView.IsDetailMode(hwnd))
{
// Get listview window rect
NativeMethods.Win32Rect controlRectangle = NativeMethods.Win32Rect.Empty;
if (!Misc.GetWindowRect(hwnd, ref controlRectangle))
{
return(NativeMethods.Win32Rect.Empty);
}
// BOUNDS == SELECTBOUNDS, hence cannot rely on them
// will rely on the ICON or LABEL
// Try icon first since it is the closest to the checkbox
NativeMethods.Win32Rect rc;
if ((WindowsListView.GetItemRect(hwnd, item, NativeMethods.LVIR_ICON, out rc) && rc.left != rc.right) || (WindowsListView.GetItemRect(hwnd, item, NativeMethods.LVIR_LABEL, out rc) && rc.left != rc.right))
{
int right = controlRectangle.left + (rc.left - controlRectangle.left);
return(new NativeMethods.Win32Rect(controlRectangle.left, rc.top, right, rc.bottom));
}
}
else
{
// Very common, simple case
NativeMethods.Win32Rect wholeItem;
if (!WindowsListView.GetItemRect(hwnd, item, NativeMethods.LVIR_BOUNDS, out wholeItem))
{
return(NativeMethods.Win32Rect.Empty);
}
NativeMethods.Win32Rect selectable;
if (!WindowsListView.GetItemRect(hwnd, item, NativeMethods.LVIR_SELECTBOUNDS, out selectable))
{
return(NativeMethods.Win32Rect.Empty);
}
if (Misc.IsControlRTL(hwnd))
{
return(new NativeMethods.Win32Rect(selectable.right, wholeItem.top, wholeItem.right, wholeItem.bottom));
}
else
{
return(new NativeMethods.Win32Rect(wholeItem.left, wholeItem.top, selectable.left, wholeItem.bottom));
}
}
return(NativeMethods.Win32Rect.Empty);
}
// Obtain clickable point on the listviewitem
// in the case when one doesnot exist return false
private bool GetListviewitemClickablePoint(out NativeMethods.Win32Point clickPoint)
{
// When this method is called, lv was already scrolled vertically
// hence item is visible veritcally
clickPoint.x = clickPoint.y = 0;
NativeMethods.Win32Rect itemRectangle;
// Obtain rectangle
if (!WindowsListView.GetItemRect(_hwnd, _item, NativeMethods.LVIR_LABEL, out itemRectangle))
{
return(false);
}
if (WindowsListView.IsDetailMode(_hwnd) && !WindowsListView.FullRowSelect(_hwnd))
{
// LVS_REPORT - possible that we may need to scroll horizontaly
//
NativeMethods.Win32Point pt = new NativeMethods.Win32Point(itemRectangle.left, 0);
if (!Misc.MapWindowPoints(IntPtr.Zero, _hwnd, ref pt, 1))
{
return(false);
}
// In client coordinates, hence negative indicates that item is to the left of lv client area
if (pt.x < 0)
{
((IScrollItemProvider)this).ScrollIntoView();
if (!WindowsListView.GetItemRect(_hwnd, _item, NativeMethods.LVIR_LABEL, out itemRectangle))
{
return(false);
}
}
}
clickPoint.x = Math.Min((itemRectangle.left + 5), (itemRectangle.left + itemRectangle.right) / 2);
clickPoint.y = (itemRectangle.top + itemRectangle.bottom) / 2;
return(true);
}
