private bool IsTabItemsContaining(Form f, out MdiGMTabItem theTab)
{
theTab = null;
foreach (MdiGMTabItem tab in _listTabItems)
{
if (f == tab.form)
{
theTab = tab;
return true;
}
}
return false;
}
private void RenderTabItem(Graphics g, MdiGMTabItem tab)
{
Rectangle rect = tab.Bounds;
Region oldRegion = g.Clip;
Region newRegion = new Region(rect);
g.Clip = newRegion;
// fill backgroung
Color backTop, backBottom;
if (tab.IsFormActive)
{
backTop = TabActiveBackColorTop;
backBottom = TabActiveBackColorBottom;
}
else
{
backTop = TabDeactiveBackColorTop;
backBottom = TabDeactiveBackColorBottom;
}
// background
using (LinearGradientBrush lb = new LinearGradientBrush(
rect, backTop, backBottom, LinearGradientMode.Vertical))
{
using (GraphicsPath path = PathGetter.GetTabBorderPath(rect, TabSlopeWidth))
{
g.FillPath(lb, path);
}
}
// icon
if (ShowTabIcon && tab.form.Icon != null)
{
if (tab.IconRect.Right < tab.Bounds.Right)
g.DrawIcon(tab.form.Icon, tab.IconRect);
}
// text
TextRenderer.DrawText(g, tab.form.Text, tab.form.Font, tab.TextRect, tab.form.ForeColor,
TextFormatFlags.Left | TextFormatFlags.VerticalCenter | TextFormatFlags.EndEllipsis);
// outter border
rect.Width--;
rect.Height--;
using (Pen p = new Pen(TabOutterBorderColor))
{
if (tab.IsFormActive)
{
Rectangle rectTab = tab.Bounds;
Rectangle rectBottom = BarBottomRegionBounds;
Point p1 = new Point(rectBottom.X, rectBottom.Y - 1);
Point p2 = new Point(rectTab.X, rectTab.Bottom - 1);
Point p3 = new Point(rectTab.X + TabSlopeWidth, rectTab.Y);
Point p4 = new Point(rectTab.Right - 1 - TabSlopeWidth, rectTab.Y);
Point p5 = new Point(rectTab.Right - 1, rectTab.Bottom - 1);
Point p6 = new Point(rectBottom.Right - 1, rectBottom.Y - 1);
g.Clip = oldRegion;
g.DrawLines(p, new Point[] { p1, p2, p3, p4, p5, p6 });
g.Clip = newRegion;
}
else
{
using (GraphicsPath path = PathGetter.GetTabBorderPath(rect, TabSlopeWidth))
{
g.DrawPath(p, path);
}
}
}
// inner border
rect.Inflate(-1, -1);
rect.Height++; // 为了使bar-bottom-region 与 active-tab 的连线能覆盖非 active-tab 的底部的线
using (Pen p = new Pen(TabInnerBorderColor))
{
using (GraphicsPath path = PathGetter.GetTabBorderPath(rect, TabSlopeWidth))
{
g.DrawPath(p, path);
}
}
// do not let the active-tab to have bottom-line
if (tab.IsFormActive)
{
Rectangle rtmp = tab.Bounds;
Point p1 = new Point(rtmp.Left + 1, rtmp.Bottom - 1);
Point p2 = new Point(rtmp.Right - 2, rtmp.Bottom - 1);
using (Pen pen = new Pen(backBottom))
{
g.DrawLine(pen, p1, p2);
}
}
//close btn
tab.CloseBtn.Bounds = tab.CloseBtnRect;
tab.CloseBtn.PaintControl(g);
g.Clip = oldRegion;
newRegion.Dispose();
}
private MdiGMTabItem CreateNewTab(Form f)
{
MdiGMTabItem tab = new MdiGMTabItem(this);
tab.form = f;
tab.CloseBtn = new WLButton(_owner);
tab.CloseBtn.XTheme.ColorTable = TabCloseBtnColor;
tab.CloseBtn.BorderType = ButtonBorderType.Ellipse;
tab.CloseBtn.DrawForePathTwice = true;
//tab.CloseBtn.DrawLightGlass = true;
tab.CloseBtn.ClickSendBackOject = f;
tab.CloseBtn.ForePathGetter = new
ButtonForePathGetter(GraphicsPathHelper.CreateSingleLineCloseFlag);
tab.CloseBtn.Click += new EventHandler(OnTabCloseBtnClick);
// menu item
tab.MenuItemPop = new ToolStripMenuItem();
tab.MenuItemPop.Tag = f;
tab.MenuItemPop.Click += new EventHandler(OnPopMenuItemClick);
_menuPopup.Items.Add(tab.MenuItemPop);
return tab;
}