Source/Ribbon/Office2007RibbonTabItemPainter.cs

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using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using DevComponents.DotNetBar.Rendering;

namespace DevComponents.DotNetBar
{
    /// <summary>
    /// RibbonTabItem painter for Office 2007 style
    /// </summary>
    internal class Office2007RibbonTabItemPainter : Office2007ButtonItemPainter
    {
        protected override Rectangle GetTextRectangle(ButtonItem button, ItemPaintArgs pa, eTextFormat stringFormat, CompositeImage image)
        {
            Rectangle r = base.GetTextRectangle(button, pa, stringFormat, image);
            if(image==null)
                r.Inflate(-3, 0);
            return r;
        }

        public override eTextFormat GetStringFormat(ButtonItem button, ItemPaintArgs pa, CompositeImage image)
        {
            eTextFormat sf = base.GetStringFormat(button, pa, image);
            sf &= ~(sf & eTextFormat.EndEllipsis);
            return sf;
        }

        protected override void PaintState(ButtonItem button, ItemPaintArgs pa, CompositeImage image, Rectangle r, bool isMouseDown)
        {
            if (r.IsEmpty || !IsItemEnabled(button, pa) || r.Width==0 || r.Height==0)
                return;

            RibbonTabItem tab = button as RibbonTabItem;
            if (tab == null || IsOnMenu(button, pa))
            {
                base.PaintState(button, pa, image, r, isMouseDown);
                return;
            }

            bool isOnMenu = pa.IsOnMenu;
            Office2007RibbonTabItemColorTable tabColorTable = GetColorTable(tab);
            if (tabColorTable == null)
                return;
            bool ribbonExpanded = pa.ControlExpanded;

            Office2007RibbonTabItemStateColorTable stateColors = GetStateColorTable(tabColorTable, tab, ribbonExpanded);

            if (stateColors == null)
                return;

            Graphics g = pa.Graphics;
            int cornerSize = tabColorTable.CornerSize;
            Region oldClip = g.Clip;
            Rectangle rClip = r;
            rClip.Inflate(1, 1);
            g.SetClip(rClip, CombineMode.Replace);

            if (stateColors != null)
            {