/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="tag">the html tag data of this box</param>
public CssBoxFrame(CssBox parent, HtmlTag tag)
: base(parent, tag)
{
_imageWord = new CssRectImage(this);
Words.Add(_imageWord);
Uri uri;
if (Uri.TryCreate(GetAttribute("src"), UriKind.Absolute, out uri))
{
if (uri.Host.IndexOf("youtube.com", StringComparison.InvariantCultureIgnoreCase) > -1)
{
_isVideo = true;
LoadYoutubeDataAsync(uri);
}
else if (uri.Host.IndexOf("vimeo.com", StringComparison.InvariantCultureIgnoreCase) > -1)
{
_isVideo = true;
LoadVimeoDataAsync(uri);
}
}
if (!_isVideo)
{
SetErrorBorder();
}
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="tag">the html tag data of this box</param>
public CssBoxImage(CssBox parent, HtmlTag tag)
: base(parent, tag)
{
_imageWord = new CssRectImage(this);
Words.Add(_imageWord);
}
/// <summary>
/// Measure image box size by the width\height set on the box and the actual rendered image size.<br/>
/// If no image exists for the box error icon will be set.
/// </summary>
/// <param name="imageWord">the image word to measure</param>
public static void MeasureImageSize(CssRectImage imageWord)
{
ArgChecker.AssertArgNotNull(imageWord, "imageWord");
ArgChecker.AssertArgNotNull(imageWord.OwnerBox, "imageWord.OwnerBox");
var width = new CssLength(imageWord.OwnerBox.Width);
var height = new CssLength(imageWord.OwnerBox.Height);
bool hasImageTagWidth = width.Number > 0 && width.Unit == CssUnit.Pixels;
bool hasImageTagHeight = height.Number > 0 && height.Unit == CssUnit.Pixels;
bool scaleImageHeight = false;
if (hasImageTagWidth)
{
imageWord.Width = width.Number;
}
else if (width.Number > 0 && width.IsPercentage)
{
imageWord.Width = width.Number * imageWord.OwnerBox.ContainingBlock.Size.Width;
scaleImageHeight = true;
}
else if (imageWord.Image != null)
{
imageWord.Width = imageWord.ImageRectangle == RRect.Empty ? imageWord.Image.Width : imageWord.ImageRectangle.Width;
}
else
{
imageWord.Width = hasImageTagHeight ? height.Number / 1.14f : 20;
}
var maxWidth = new CssLength(imageWord.OwnerBox.MaxWidth);
if (maxWidth.Number > 0)
{
double maxWidthVal = -1;
if (maxWidth.Unit == CssUnit.Pixels)
{
maxWidthVal = maxWidth.Number;
}
else if (maxWidth.IsPercentage)
{
maxWidthVal = maxWidth.Number * imageWord.OwnerBox.ContainingBlock.Size.Width;
}
if (maxWidthVal > -1 && imageWord.Width > maxWidthVal)
{
imageWord.Width = maxWidthVal;
scaleImageHeight = !hasImageTagHeight;
}
}
if (hasImageTagHeight)
{
imageWord.Height = height.Number;
}
else if (imageWord.Image != null)
{
imageWord.Height = imageWord.ImageRectangle == RRect.Empty ? imageWord.Image.Height : imageWord.ImageRectangle.Height;
}
else
{
imageWord.Height = imageWord.Width > 0 ? imageWord.Width * 1.14f : 22.8f;
}
if (imageWord.Image != null)
{
// If only the width was set in the html tag, ratio the height.
if ((hasImageTagWidth && !hasImageTagHeight) || scaleImageHeight)
{
// Divide the given tag width with the actual image width, to get the ratio.
double ratio = imageWord.Width / imageWord.Image.Width;
imageWord.Height = imageWord.Image.Height * ratio;
}
// If only the height was set in the html tag, ratio the width.
else if (hasImageTagHeight && !hasImageTagWidth)
{
// Divide the given tag height with the actual image height, to get the ratio.
double ratio = imageWord.Height / imageWord.Image.Height;
imageWord.Width = imageWord.Image.Width * ratio;
}
}
imageWord.Height += imageWord.OwnerBox.ActualBorderBottomWidth + imageWord.OwnerBox.ActualBorderTopWidth + imageWord.OwnerBox.ActualPaddingTop + imageWord.OwnerBox.ActualPaddingBottom;
}