/// <summary>
/// Renders the <see cref="DXComboBox"/>.
/// </summary>
public override void Render(RenderEventArgs e)
{
//have to recalc the size since we might be expanded. In that case,
//we don't want the button to cover the entire size of the control,
//just the height as it is when collapsed.
Size buttonSize = new Size(this.Width, this.collapsedHeight);
//create the rectangle for the button portion of the combobox
Rectangle rect = new Rectangle(PointToScreen(Point.Empty), buttonSize);
//shade the rectangle
ShadeButton(e.ControlHost.Device, rect);
if (this.expanded)
{
DrawDropDown(e.ControlHost);
}
//draw the bounding rectangle around the button portion
Color color = this.BorderColor;
if (this.Hovered || this.Focused)
{
color = this.HoveredBorderColor;
}
CustomPainters.DrawBoundingRectangle(e.ControlHost, rect, color);
//draw the arrow
if (this.arrowBuffer == null)
{
this.arrowBuffer = CustomPainters.CreateColoredTriangleBuffer(e.ControlHost.Device);
}
Rectangle arrowRect = new Rectangle(this.Location.X + this.Size.Width - 20, this.Location.Y + 5, 15, collapsedHeight - 10);
CustomPainters.PaintColoredTriangle(e.ControlHost.Device, arrowRect, this.arrowBuffer, color);
this.D3DFont.DrawString(null, this.Text, rect, DrawStringFormat.Left, this.ForeColor);
}