Source/CrumbBar/CrumbBarViewContainer.cs

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using System;
using System.Text;
using System.Drawing;

namespace DevComponents.DotNetBar
{
    /// <summary>
    /// Represents internal CrumbBar view container.
    /// </summary>
    internal class CrumbBarViewContainer : ImageItem
    {
        #region Internal Implementation
        /// <summary>
        /// Initializes a new instance of the CrumbBarViewContainer class.
        /// </summary>
        public CrumbBarViewContainer()
            : base()
        {
            LabelItem imageLabel = new LabelItem("sys_crumbbarimagelabel");
            this.SubItems.Add(imageLabel);

            CrumbBarOverflowButton overflowButton = new CrumbBarOverflowButton("sys_crumbbaroverflowbutton");
            this.SubItems.Add(overflowButton);
            m_IsContainer = true;
        }

        /// <summary>
        /// Recalculates the size of the item
        /// </summary>
        public override void RecalcSize()
        {
            if (_InternalRemove) return;

            Point pos = m_Rect.Location;
            Size containerSize = m_Rect.Size;
            _CalculatedHeight = 0;

            if (m_SubItems == null)
                return;

            RestoreOverflowItems();
            ButtonItem overflowButton = this.OverflowButton;
            LabelItem imageLabel = this.ImageLabel;

            // Overflow button is hidden by default
            overflowButton.Visible = false;

            Rectangle itemsRect = m_Rect;

            // Label may be hidden if there is no image assigned to current item
            if (imageLabel.Visible)
            {
                imageLabel.RecalcSize();
                if (imageLabel.HeightInternal > _CalculatedHeight) _CalculatedHeight = imageLabel.HeightInternal;
                imageLabel.HeightInternal = containerSize.Height;
                itemsRect.X += imageLabel.WidthInternal;
                itemsRect.Width -= imageLabel.WidthInternal;
                imageLabel.Displayed = true;
            }
            Point itemsPos = itemsRect.Location;