GetPreferredSize() public method

Discover the preferred size of the element.
public GetPreferredSize ( ViewLayoutContext context ) : Size
context ComponentFactory.Krypton.Toolkit.ViewLayoutContext Layout context.
return System.Drawing.Size
ViewDrawRibbonQATExtraButton Class Documentation
Exemplo n.º 1
0
        /// <summary>
        /// Discover the preferred size of the element.
        /// </summary>
        /// <param name="context">Layout context.</param>
        public override Size GetPreferredSize(ViewLayoutContext context)
        {
            // Sync to represent the current ribbon QAT buttons
            SyncChildren(false);

            Size preferredSize = Size.Empty;

            // Find total width and maximum height across all child elements
            for (int i = 0; i < Count; i++)
            {
                ViewBase child = this[i];

                // Only interested in visible items that are not the extra button
                if (child != _extraButton)
                {
                    // Cast child to correct type
                    ViewDrawRibbonQATButton view = (ViewDrawRibbonQATButton)child;

                    // If the quick access toolbar button wants to be visible
                    if (view.QATButton.GetVisible() || Ribbon.InDesignHelperMode)
                    {
                        // Cache preferred size of the child
                        Size childSize = child.GetPreferredSize(context);

                        // Only need extra processing for children that have some width
                        if (childSize.Width > 0)
                        {
                            // Always add on to the width
                            preferredSize.Width += childSize.Width;

                            // Find maximum height encountered
                            preferredSize.Height = Math.Max(preferredSize.Height, childSize.Height);
                        }
                    }
                }
            }

            if (_extraButton != null)
            {
                // Cache preferred size of the child
                Size childSize = _extraButton.GetPreferredSize(context);

                // Only need extra processing for children that have some width
                if (childSize.Width > 0)
                {
                    // Always add on to the width
                    preferredSize.Width += childSize.Width;

                    // Find maximum height encountered
                    preferredSize.Height = Math.Max(preferredSize.Height, childSize.Height);
                }
            }

            return(preferredSize);
        }