/// <summary>
/// Generate image tag for triangle
/// </summary>
protected override void OnPreRender(EventArgs e)
{
if (_activeOpacity > 0)
{
_activeColor = Draw.Utility.AdjustOpacity(_color, _activeOpacity);
}
if (_opacity < 100)
{
_color = Draw.Utility.AdjustOpacity(_color, _opacity);
}
string cacheKey = string.Format("triangle{0}{1}{2}{3}",
_direction, this.Width, this.Height, _color.ToArgb());
if (!this.TagInCache(cacheKey))
{
Idaho.Draw.Triangle draw = new Idaho.Draw.Triangle(_direction);
draw.Width = this.Width;
draw.Height = this.Height;
draw.Color.ForeGround = _color;
draw.Color.Highlight = _activeColor;
this.Src = draw.Url;
this.Style.Add("width", string.Format("{0}px", this.Width));
this.Style.Add("height", string.Format("{0}px", this.Height));
}
// attributes that aren't cached
this.Transparency = true;
this.AlternateText = "";
this.Generated = true;
base.OnPreRender(e);
}
protected override void MakeGraphic()
{
if (_alpha < 100)
{
_color = Draw.Utility.AdjustOpacity(_color, _alpha);
}
Idaho.Draw.Triangle draw = new Idaho.Draw.Triangle(_direction);
draw.Width = base.Width;
draw.Height = base.Height;
draw.Color.BackGround = System.Drawing.Color.Transparent;
draw.Color.ForeGround = _color;
draw.Create();
this.Bitmap = draw.Bitmap;
}
