public static IDisposable CreateTransactionIf(bool condition, Control controlToLayout, Control elementCausingLayout, string property)
{
if (condition)
{
return(new LayoutTransaction(controlToLayout, elementCausingLayout, property));
}
CommonProperties.xClearPreferredSizeCache(elementCausingLayout);
return(new NullLayoutTransaction());
}
public static void DoLayout(Control elementToLayout, Control elementCausingLayout, string property)
{
if (elementCausingLayout != null)
{
CommonProperties.xClearPreferredSizeCache(elementCausingLayout);
if (elementToLayout != null)
{
CommonProperties.xClearPreferredSizeCache(elementToLayout);
elementToLayout.PerformLayout(elementCausingLayout, property);
}
}
}
public static void DoLayoutIf(bool condition, Control elementToLayout, Control elementCausingLayout, string property)
{
if (!condition)
{
if (elementCausingLayout != null)
{
CommonProperties.xClearPreferredSizeCache(elementCausingLayout);
}
}
else
{
DoLayout(elementToLayout, elementCausingLayout, property);
}
}
private void InstallNewImage(System.Drawing.Image value, ImageInstallationType installationType)
{
this.StopAnimate();
this.image = value;
LayoutTransaction.DoLayoutIf(this.AutoSize, this, this, PropertyNames.Image);
this.Animate();
if (installationType != ImageInstallationType.ErrorOrInitial)
{
this.AdjustSize();
}
this.imageInstallationType = installationType;
base.Invalidate();
CommonProperties.xClearPreferredSizeCache(this);
}
internal override void ResetScaling(int newDpi)
{
base.ResetScaling(newDpi);
CommonProperties.xClearPreferredSizeCache(this);
scaledDefaultImageSize = DpiHelper.LogicalToDeviceUnits(DefaultImageSize, newDpi);
scaledDefaultImageMarginWidth = DpiHelper.LogicalToDeviceUnits(DefaultImageMarginWidth, newDpi) + 1; // 1px for border
scaledDefaultImageAndCheckMarginWidth = DpiHelper.LogicalToDeviceUnits(DefaultImageAndCheckMarginWidth, newDpi) + 1; // 1px for border
scaledImagePadding = DpiHelper.LogicalToDeviceUnits(ImagePadding, newDpi);
scaledTextPadding = DpiHelper.LogicalToDeviceUnits(TextPadding, newDpi);
scaledCheckPadding = DpiHelper.LogicalToDeviceUnits(CheckPadding, newDpi);
scaledArrowPadding = DpiHelper.LogicalToDeviceUnits(ArrowPadding, newDpi);
scaledArrowSize = DpiHelper.LogicalToDeviceUnits(ArrowSize, newDpi);
}
public LayoutTransaction(Control controlToLayout, Control controlCausingLayout, string property, bool resumeLayout)
{
CommonProperties.xClearPreferredSizeCache(controlCausingLayout);
this._controlToLayout = controlToLayout;
this._resumeLayout = resumeLayout;
if (this._controlToLayout != null)
{
this._controlToLayout.SuspendLayout();
CommonProperties.xClearPreferredSizeCache(this._controlToLayout);
if (resumeLayout)
{
this._controlToLayout.PerformLayout(new LayoutEventArgs(controlCausingLayout, property));
}
}
}
protected override void OnRightToLeftChanged(EventArgs e)
{
base.OnRightToLeftChanged(e);
if (this.HasDropDownItems)
{
if (this.DropDown.Visible)
{
LayoutTransaction.DoLayout(this.DropDown, this, PropertyNames.RightToLeft);
}
else
{
CommonProperties.xClearPreferredSizeCache(this.DropDown);
this.DropDown.LayoutRequired = true;
}
}
}
protected override void OnRightToLeftChanged(EventArgs e)
{
base.OnRightToLeftChanged(e);
if (HasDropDownItems)
{
// only perform a layout on a visible dropdown - otherwise clear the preferred size cache.
if (DropDown.Visible)
{
LayoutTransaction.DoLayout(DropDown, this, PropertyNames.RightToLeft);
}
else
{
CommonProperties.xClearPreferredSizeCache(DropDown);
DropDown.LayoutRequired = true;
}
}
}
public void Insert(int index, ToolStripItem value)
{
this.CheckCanAddOrInsertItem(value);
this.SetOwner(value);
base.InnerList.Insert(index, value);
if (this.itemsCollection && (this.owner != null))
{
if (this.owner.IsHandleCreated)
{
LayoutTransaction.DoLayout(this.owner, value, PropertyNames.Parent);
}
else
{
CommonProperties.xClearPreferredSizeCache(this.owner);
}
this.owner.OnItemAdded(new ToolStripItemEventArgs(value));
}
}
/// <include file='doc\ToolStripItemCollection.uex' path='docs/doc[@for="ToolStripItemCollection.Insert"]/*' />
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public void Insert(int index, ToolStripItem value)
{
CheckCanAddOrInsertItem(value);
SetOwner(value);
InnerList.Insert(index, value);
if (itemsCollection && owner != null)
{
if (owner.IsHandleCreated)
{
LayoutTransaction.DoLayout(owner, value, PropertyNames.Parent);
}
else
{
// next time we fetch the preferred size, recalc it.
CommonProperties.xClearPreferredSizeCache(owner);
}
owner.OnItemAdded(new ToolStripItemEventArgs(value));
}
}
