internal int InsertPage(int index, TabListPage page)
{
if (_pages == null)
{
_pages = new TabListPage[1];
}
else if (_pages.Length == this.TabListPageCount)
{
// no room left, so resize the array
TabListPage[] copy;
copy = new TabListPage[_pages.Length + 1];
Array.Copy(_pages, copy, _pages.Length);
_pages = copy;
}
// if this is an insert rather than append, move the array around
if (index < this.TabListPageCount)
{
Array.Copy(_pages, index, _pages, index + 1, _pages.Length - index);
}
// update the array and page count
_pages[index] = page;
this.TabListPageCount++;
this.UpdatePages();
this.UpdateSelectedPage();
// finally trigger a redraw of the control
this.Invalidate();
return(index);
}
public bool Contains(TabListPage value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
return(this.IndexOf(value) != -1);
}
public void Add(TabListPage value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
this.Owner.Controls.Add(value);
}
public void Insert(int index, TabListPage value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
this.Owner.InsertPage(index, value);
this.Owner.Controls.Add(value);
this.Owner.Controls.SetChildIndex(value, index);
}
public IEnumerator GetEnumerator()
{
TabListPage[] tabPages;
tabPages = this.Owner.GetTabListPages();
if (tabPages == null)
{
tabPages = new TabListPage[0];
}
return(tabPages.GetEnumerator());
}
public TabListPage Add(string text)
{
TabListPage page;
page = new TabListPage()
{
Text = text
};
this.Add(page);
return(page);
}
internal TabListPage[] GetTabListPages()
{
TabListPage[] copy;
copy = new TabListPage[this.TabListPageCount];
if (this.TabListPageCount > 0)
{
Array.Copy(_pages, copy, this.TabListPageCount);
}
return(copy);
}
internal int AddPage(TabListPage page)
{
int index;
index = this.InsertPage(this.TabListPageCount, page);
if (this.SelectedIndex == -1)
{
this.SelectedIndex = index;
}
return(index);
}
public int IndexOf(TabListPage value)
{
int index;
if (value == null)
{
throw new ArgumentNullException("value");
}
index = -1;
for (int i = 0; i < this.Count; i++)
{
if (this[i] == value)
{
index = i;
break;
}
}
return(index);
}
internal void UpdatePage(TabListPage page)
{
this.Invalidate();
}
public abstract void RenderHeader(Graphics g, TabListPage page, TabListPageState state);
public override void RenderHeader(Graphics g, TabListPage page, TabListPageState state)
{
Color fillColor;
Color textColor;
Rectangle fillBounds;
Rectangle textRectangle;
TextFormatFlags flags;
int arrowSize;
arrowSize = 6;
fillBounds = page.HeaderBounds;
fillBounds.Width -= arrowSize;
textRectangle = Rectangle.Inflate(fillBounds, -4, -4);
// define the most appropriate colors
if ((state & TabListPageState.Selected) == TabListPageState.Selected)
{
fillColor = SystemColors.Highlight;
textColor = SystemColors.HighlightText;
}
else if ((state & TabListPageState.Hot) == TabListPageState.Hot)
{
fillColor = SystemColors.ControlLightLight;
textColor = page.Owner.ForeColor;
}
else
{
fillColor = page.Owner.BackColor;
textColor = page.Owner.ForeColor;
}
// fill the background
using (Brush brush = new SolidBrush(fillColor))
g.FillRectangle(brush, fillBounds);
// draw the selection arrow
if ((state & TabListPageState.Selected) == TabListPageState.Selected)
{
int y;
int x;
Point point1;
Point point2;
Point point3;
y = fillBounds.Top + ((fillBounds.Height - (arrowSize * 2)) / 2);
x = fillBounds.Right;
point1 = new Point(x, y);
point2 = new Point(x + arrowSize, y + arrowSize);
point3 = new Point(x, y + (arrowSize * 2));
using (Brush brush = new SolidBrush(fillColor))
{
g.FillPolygon(brush, new Point[] { point1, point2, point3 });
}
}
// draw the text
flags = TextFormatFlags.VerticalCenter | TextFormatFlags.Left | TextFormatFlags.NoPrefix | TextFormatFlags.SingleLine | TextFormatFlags.WordEllipsis;
TextRenderer.DrawText(g, page.Text, page.Font, textRectangle, textColor, fillColor, flags);
// focus
if ((state & TabListPageState.Focused) == TabListPageState.Focused)
{
SizeF textSize;
int offset;
textSize = TextRenderer.MeasureText(g, page.Text, page.Font, textRectangle.Size, flags);
offset = 2;
ControlPaint.DrawFocusRectangle(g, new Rectangle(textRectangle.X, textRectangle.Y, (int)textSize.Width + offset, (int)textSize.Height + offset), textColor, fillColor);
}
}
