public override Size MeasureSize(object sender, RibbonElementMeasureSizeEventArgs e)
{
#region Determine items
int itemsWide = 0;
switch (e.SizeMode)
{
case RibbonElementSizeMode.DropDown:
itemsWide = ItemsSizeInDropwDownMode.Width;
break;
case RibbonElementSizeMode.Large:
itemsWide = ItemsWideInLargeMode;
break;
case RibbonElementSizeMode.Medium:
itemsWide = ItemsWideInMediumMode;
break;
case RibbonElementSizeMode.Compact:
itemsWide = 0;
break;
}
#endregion
int height = OwnerPanel.ContentBounds.Height - Owner.ItemPadding.Vertical - 4;
int scannedItems = 0;
int widthSum = 1;
int buttonHeight = 0;
int heightSum = 0;
bool sumWidth = true;
foreach (RibbonButton button in Buttons)
{
Size s = button.MeasureSize(this,
new RibbonElementMeasureSizeEventArgs(e.Graphics, this.ButtonsSizeMode));
if (sumWidth)
{
widthSum += s.Width + 1;
}
buttonHeight = button.LastMeasuredSize.Height;
heightSum += buttonHeight;
if (++scannedItems == itemsWide)
{
sumWidth = false;
}
}
if (e.SizeMode == RibbonElementSizeMode.DropDown)
{
height = buttonHeight * ItemsSizeInDropwDownMode.Height;
}
if (ScrollBarRenderer.IsSupported)
{
_thumbBounds = new Rectangle(Point.Empty, ScrollBarRenderer.GetSizeBoxSize(e.Graphics, System.Windows.Forms.VisualStyles.ScrollBarState.Normal));
}
else
{
_thumbBounds = new Rectangle(Point.Empty, new Size(16, 16));
}
//if (height < 0)
//{
// throw new Exception("???");
//}
SetLastMeasuredSize(new Size(widthSum + ControlButtonsWidth, height));
return(LastMeasuredSize);
}