private void DrawExpandCollapseGlyph(Graphics g)
{
// Determine the rectangle in which the expanding/collapsing button will be drawn.
Rectangle rc = new Rectangle(0, 0, m_glyphButtonWidth, m_button.Height);
if (RightToLeft == RightToLeft.No)
rc.X = (m_button.ClientRectangle.Right - rc.Width);
VisualStyleElement element;
if (m_drawHot)
{
element = (m_control.Visible ?
VisualStyleElement.ExplorerBar.NormalGroupCollapse.Hot :
VisualStyleElement.ExplorerBar.NormalGroupExpand.Hot);
}
else
{
element = (m_control.Visible ?
VisualStyleElement.ExplorerBar.NormalGroupCollapse.Normal :
VisualStyleElement.ExplorerBar.NormalGroupExpand.Normal);
}
if (PaintingHelper.CanPaintVisualStyle(element))
{
VisualStyleRenderer renderer = new VisualStyleRenderer(element);
renderer.DrawBackground(g, rc);
}
else
{
Image glyph = (m_expanded ? Properties.Resources.kimidExplorerBarCollapseGlyph :
Properties.Resources.kimidExplorerBarEpandGlyph);
if (RightToLeft == RightToLeft.No)
rc.X = rc.Right - (glyph.Width + 1);
rc.Y += (m_button.Height - glyph.Height) / 2;
rc.Width = glyph.Width;
rc.Height = glyph.Height;
g.DrawImage(glyph, rc);
}
}