public static void SetDock(IArrangedElement element, DockStyle value)
{
Debug.Assert(!HasCachedBounds(element.Container), "Do not call this method with an active cached bounds list.");
if (GetDock(element) != value)
{
SourceGenerated.EnumValidator.Validate(value);
bool dockNeedsLayout = CommonProperties.GetNeedsDockLayout(element);
CommonProperties.xSetDock(element, value);
using (new LayoutTransaction(element.Container as Control, element, PropertyNames.Dock))
{
// if the item is autosized, calling setbounds performs a layout, which
// if we havent set the anchor info properly yet makes dock/anchor layout cranky.
if (value == DockStyle.None)
{
if (dockNeedsLayout)
{
// We are transitioning from docked to not docked, restore the original bounds.
element.SetBounds(CommonProperties.GetSpecifiedBounds(element), BoundsSpecified.None);
// Restore Anchor information as its now relevant again.
UpdateAnchorInfo(element);
}
}
else
{
// Now setup the new bounds.
element.SetBounds(CommonProperties.GetSpecifiedBounds(element), BoundsSpecified.All);
}
}
}
Debug.Assert(GetDock(element) == value, "Error setting Dock value.");
}
public static void SetDock(IArrangedElement element, DockStyle value)
{
if (GetDock(element) != value)
{
if (!System.Windows.Forms.ClientUtils.IsEnumValid(value, (int)value, 0, 5))
{
throw new InvalidEnumArgumentException("value", (int)value, typeof(DockStyle));
}
bool needsDockLayout = CommonProperties.GetNeedsDockLayout(element);
CommonProperties.xSetDock(element, value);
using (new LayoutTransaction(element.Container as Control, element, PropertyNames.Dock))
{
if (value == DockStyle.None)
{
if (needsDockLayout)
{
element.SetBounds(CommonProperties.GetSpecifiedBounds(element), BoundsSpecified.None);
UpdateAnchorInfo(element);
}
}
else
{
element.SetBounds(CommonProperties.GetSpecifiedBounds(element), BoundsSpecified.All);
}
}
}
}
internal static void UpdateSpecifiedBounds(IArrangedElement element, int x, int y, int width, int height, BoundsSpecified specified)
{
Rectangle originalBounds = CommonProperties.GetSpecifiedBounds(element);
// PERF note: Bitwise operator usage intentional to optimize out branching.
bool xChangedButNotSpecified = ((specified & BoundsSpecified.X) == BoundsSpecified.None) & x != originalBounds.X;
bool yChangedButNotSpecified = ((specified & BoundsSpecified.Y) == BoundsSpecified.None) & y != originalBounds.Y;
bool wChangedButNotSpecified = ((specified & BoundsSpecified.Width) == BoundsSpecified.None) & width != originalBounds.Width;
bool hChangedButNotSpecified = ((specified & BoundsSpecified.Height) == BoundsSpecified.None) & height != originalBounds.Height;
if (xChangedButNotSpecified | yChangedButNotSpecified | wChangedButNotSpecified | hChangedButNotSpecified)
{
// if any of them are changed and specified cache the new value.
if (!xChangedButNotSpecified)
{
originalBounds.X = x;
}
if (!yChangedButNotSpecified)
{
originalBounds.Y = y;
}
if (!wChangedButNotSpecified)
{
originalBounds.Width = width;
}
if (!hChangedButNotSpecified)
{
originalBounds.Height = height;
}
element.Properties.SetRectangle(_specifiedBoundsProperty, originalBounds);
}
else
{
// SetBoundsCore is going to call this a lot with the same bounds. Avoid the set object
// (which indirectly may causes an allocation) if we can.
if (element.Properties.ContainsObject(_specifiedBoundsProperty))
{
// use MaxRectangle instead of null so we can reuse the SizeWrapper in the property store.
element.Properties.SetRectangle(_specifiedBoundsProperty, LayoutUtils.s_maxRectangle);
}
}
}
