protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (HoverImageUrl.HasValue())
{
AlternateText = AlternateText.Or(Text);
}
ImageUrl = Page.ResolveUrl(ImageUrl);
if (HoverImageUrl.HasValue())
{
Attributes.Add("onmouseover", "this.src='" + Page.ResolveUrl(HoverImageUrl) + "';");
Attributes.Add("onfocus", "this.src='" + Page.ResolveUrl(HoverImageUrl) + "';");
Attributes.Add("onmouseout", "this.src='" + Page.ResolveUrl(ImageUrl) + "';");
Attributes.Add("onblur", "this.src='" + Page.ResolveUrl(ImageUrl) + "';");
}
if (HoverImageUrl.HasValue())
{
System.Web.UI.ScriptManager.RegisterStartupScript(Page, GetType(), "Preload" + Page.ResolveUrl(HoverImageUrl),
"preloadImages('" + Page.ResolveUrl(HoverImageUrl) + "');", addScriptTags: true);
}
}
public override int GetHashCode()
{
unchecked
{
var hashCode = MediaUrl?.GetHashCode() ?? 0;
hashCode = (hashCode * 397) ^ (MimeType?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Caption?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (AlternateText?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (FolderPath?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (FileName?.GetHashCode() ?? 0);
return(hashCode);
}
}
public override int GetHashCode()
{
unchecked
{
var hashCode = Align?.GetHashCode() ?? 0;
hashCode = (hashCode * 397) ^ (AlternateText?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Attributes?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Float?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ Height.GetHashCode();
hashCode = (hashCode * 397) ^ (Link?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Path?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Role?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ (Title?.GetHashCode() ?? 0);
hashCode = (hashCode * 397) ^ Width.GetHashCode();
return(hashCode);
}
}
public string CalculateAlternateText(Graphics g, float width)
{
var actualText = Text;
ActualWidth = g.MeasureString(Text, Font, 9999, Format).Width;
foreach (var curText in AlternateText.OrderByDescending(x => x.Length))
{
if (width < ActualWidth)
{
actualText = curText;
ActualWidth = g.MeasureString(actualText, Font, 9999, Format).Width;
}
else
{
break;
}
}
return(actualText);
}
public void Draw(Graphics g)
{
var format = new StringFormat
{
Alignment = HorizontalAlignment,
LineAlignment = VerticalAlignment,
FormatFlags = StringFormatFlags.NoWrap,
Trimming = StringTrimming.EllipsisCharacter
};
if (!IsMonospaced)
{
var actualText = Text;
ActualWidth = g.MeasureString(Text, Font, 9999, format).Width;
foreach (var curText in AlternateText.OrderByDescending(x => x.Length))
{
if (Width < ActualWidth)
{
actualText = curText;
ActualWidth = g.MeasureString(actualText, Font, 9999, format).Width;
}
else
{
break;
}
}
if (HasShadow)
{
using (var shadowBrush = new SolidBrush(ShadowColor))
{
g.DrawString(actualText, Font, shadowBrush, new RectangleF(X + 1, Y + 1, Width, Height), format);
g.DrawString(actualText, Font, shadowBrush, new RectangleF(X + 2, Y + 2, Width, Height), format);
}
}
g.DrawString(actualText, Font, Brush, new RectangleF(X, Y, Width, Height), format);
}
else
{
var monoFormat = new StringFormat
{
Alignment = StringAlignment.Center,
LineAlignment = VerticalAlignment
};
var measurement = TextRenderer.MeasureText(g, "0", Font, new Size((int)(Width + 0.5f), (int)(Height + 0.5f)), TextFormatFlags.NoPadding).Width;
var offset = Width;
var charIndex = 0;
SetActualWidth(g);
var cutOffText = CutOff(g);
offset = Width - MeasureActualWidth(cutOffText, g);
if (HorizontalAlignment != StringAlignment.Far)
{
offset = 0f;
}
while (charIndex < cutOffText.Length)
{
var curOffset = 0f;
var curChar = cutOffText[charIndex];
if (char.IsDigit(curChar))
{
curOffset = measurement;
}
else
{
curOffset = TextRenderer.MeasureText(g, curChar.ToString(), Font, new Size((int)(Width + 0.5f), (int)(Height + 0.5f)), TextFormatFlags.NoPadding).Width;
}
if (HasShadow)
{
using (var shadowBrush = new SolidBrush(ShadowColor))
{
g.DrawString(curChar.ToString(), Font, shadowBrush, new RectangleF(X + 1 + offset - curOffset * 2f, Y + 1, curOffset * 5f, Height), monoFormat);
g.DrawString(curChar.ToString(), Font, shadowBrush, new RectangleF(X + 2 + offset - curOffset * 2f, Y + 2, curOffset * 5f, Height), monoFormat);
}
}
g.DrawString(cutOffText[charIndex].ToString(), Font, Brush, new RectangleF(X + offset - curOffset / 2f, Y, curOffset * 2f, Height), monoFormat);
charIndex++;
offset += curOffset;
}
}
/*if (HasGlassEffects)
* {
* var glassBrush = new LinearGradientBrush(
* new PointF(0.0f, 0.0f),
* new PointF(0.0f, Height),
* Color.Transparent,
* Color.Transparent);
*
* var cb = new ColorBlend();
* cb.Positions = new float[] { 0f, 0.5f, 0.55f, 1f };
* var c1 = Color.FromArgb(150, Color.White);
* var c2 = Color.FromArgb(100, Color.White);
* cb.Colors = new Color[] { c1, c2, Color.FromArgb(255, Color.Black), Color.Transparent };
*
* glassBrush.InterpolationColors = cb;
*
* g.DrawString(cutOffText, Font, glassBrush, new RectangleF(X, Y, Width, Height), format);
* }*/
}
