//
/// <summary>
/// async request for image
/// </summary>
/// <param name="binder"></param>
/// <param name="requestFrom"></param>
public void RequestImageAsync(ImageBinder binder,
CssImageRun imgRun,
object requestFrom)
{
if (_htmlVisualRoot != null)
{
_htmlVisualRoot.RaiseImageRequest(
binder,
requestFrom,
false);
}
else
{
binder.LazyLoadImage();
}
//--------------------------------------------------
if (binder.State == BinderState.Loaded)
{
Image img = binder.LocalImage;
if (img != null)
{
//set real image info
imgRun.ImageRectangle = new Rectangle(
(int)imgRun.Left, (int)imgRun.Top,
img.Width, img.Height);
}
}
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="controller">the html tag data of this box</param>
public CssBoxImage(Css.BoxSpec boxSpec,
RootGraphic rootgfx, ImageBinder binder)
: base(boxSpec, rootgfx)
{
this._imgRun = new CssImageRun();
this._imgRun.ImageBinder = binder;
this._imgRun.SetOwner(this);
var runlist = new List<CssRun>(1);
runlist.Add(_imgRun);
CssBox.UnsafeSetContentRuns(this, runlist, false);
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="controller">the html tag data of this box</param>
public CssBoxImage(Css.BoxSpec boxSpec,
IRootGraphics rootgfx, ImageBinder binder)
: base(boxSpec, rootgfx)
{
this._imgRun = new CssImageRun();
this._imgRun.ImageBinder = binder;
this._imgRun.SetOwner(this);
var runlist = new List <CssRun>(1);
runlist.Add(_imgRun);
CssBox.UnsafeSetContentRuns(this, runlist, false);
}
/// <summary>
/// Init.
/// </summary>
/// <param name="parent">the parent box of this box</param>
/// <param name="controller">the html tag data of this box</param>
public CssBoxImage(Css.BoxSpec boxSpec,
ImageBinder binder)
: base(boxSpec)
{
_imgRun = new CssImageRun();
_imgRun.ImageBinder = binder;
binder.ImageChanged += Binder_ImageChanged;
_imgRun.SetOwner(this);
//
var runlist = new List <CssRun>(1);
runlist.Add(_imgRun);
CssBox.UnsafeSetContentRuns(this, runlist, false);
}
public SvgImage(SvgImageSpec spec, object controller)
: base(controller)
{
this.imageSpec = spec;
this._imgRun = new LayoutFarm.HtmlBoxes.CssImageRun();
}
public SvgImage(SvgImageSpec spec, object controller)
: base(controller)
{
this.imageSpec = spec;
this._imgRun = new LayoutFarm.HtmlBoxes.CssImageRun();
}
/// <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="imgRun">the image word to measure</param>
static void MeasureImageSize(CssImageRun imgRun, LayoutVisitor lay)
{
var width = imgRun.OwnerBox.Width;
var height = imgRun.OwnerBox.Height;
bool hasImageTagWidth = width.Number > 0 && width.UnitOrNames == Css.CssUnitOrNames.Pixels;
bool hasImageTagHeight = height.Number > 0 && height.UnitOrNames == Css.CssUnitOrNames.Pixels;
bool scaleImageHeight = false;
if (hasImageTagWidth)
{
imgRun.Width = width.Number;
}
else if (width.Number > 0 && width.IsPercentage)
{
imgRun.Width = width.Number * lay.LatestContainingBlock.VisualWidth;
scaleImageHeight = true;
}
else if (imgRun.HasUserImageContent)
{
imgRun.Width = imgRun.ImageRectangle == Rectangle.Empty ? imgRun.OriginalImageWidth : imgRun.ImageRectangle.Width;
}
else
{
imgRun.Width = hasImageTagHeight ? height.Number / 1.14f : 20;
}
var maxWidth = imgRun.OwnerBox.MaxWidth;// new CssLength(imageWord.OwnerBox.MaxWidth);
if (maxWidth.Number > 0)
{
float maxWidthVal = -1;
switch (maxWidth.UnitOrNames)
{
case Css.CssUnitOrNames.Percent:
{
maxWidthVal = maxWidth.Number * lay.LatestContainingBlock.VisualWidth;
}
break;
case Css.CssUnitOrNames.Pixels:
{
maxWidthVal = maxWidth.Number;
}
break;
}
if (maxWidthVal > -1 && imgRun.Width > maxWidthVal)
{
imgRun.Width = maxWidthVal;
scaleImageHeight = !hasImageTagHeight;
}
}
if (hasImageTagHeight)
{
imgRun.Height = height.Number;
}
else if (imgRun.HasUserImageContent)
{
imgRun.Height = imgRun.ImageRectangle == Rectangle.Empty ? imgRun.OriginalImageHeight : imgRun.ImageRectangle.Height;
}
else
{
imgRun.Height = imgRun.Width > 0 ? imgRun.Width * 1.14f : 22.8f;
}
if (imgRun.HasUserImageContent)
{
// 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.
float ratio = imgRun.Width / imgRun.OriginalImageWidth;
imgRun.Height = imgRun.OriginalImageHeight * 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.
float ratio = imgRun.Height / imgRun.OriginalImageHeight;
imgRun.Width = imgRun.OriginalImageWidth * ratio;
}
}
//imageWord.Height += imageWord.OwnerBox.ActualBorderBottomWidth + imageWord.OwnerBox.ActualBorderTopWidth + imageWord.OwnerBox.ActualPaddingTop + imageWord.OwnerBox.ActualPaddingBottom;
}
/// <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="imgRun">the image word to measure</param>
static void MeasureImageSize(CssImageRun imgRun, LayoutVisitor lay)
{
var width = imgRun.OwnerBox.Width;
var height = imgRun.OwnerBox.Height;
bool hasImageTagWidth = width.Number > 0 && width.UnitOrNames == Css.CssUnitOrNames.Pixels;
bool hasImageTagHeight = height.Number > 0 && height.UnitOrNames == Css.CssUnitOrNames.Pixels;
bool scaleImageHeight = false;
if (hasImageTagWidth)
{
imgRun.Width = width.Number;
}
else if (width.Number > 0 && width.IsPercentage)
{
imgRun.Width = width.Number * lay.LatestContainingBlock.VisualWidth;
scaleImageHeight = true;
}
else if (imgRun.HasUserImageContent)
{
imgRun.Width = imgRun.ImageRectangle == Rectangle.Empty ? imgRun.OriginalImageWidth : imgRun.ImageRectangle.Width;
}
else
{
imgRun.Width = hasImageTagHeight ? height.Number / 1.14f : 20;
}
var maxWidth = imgRun.OwnerBox.MaxWidth;// new CssLength(imageWord.OwnerBox.MaxWidth);
if (maxWidth.Number > 0)
{
float maxWidthVal = -1;
switch (maxWidth.UnitOrNames)
{
case Css.CssUnitOrNames.Percent:
{
maxWidthVal = maxWidth.Number * lay.LatestContainingBlock.VisualWidth;
}
break;
case Css.CssUnitOrNames.Pixels:
{
maxWidthVal = maxWidth.Number;
}
break;
}
if (maxWidthVal > -1 && imgRun.Width > maxWidthVal)
{
imgRun.Width = maxWidthVal;
scaleImageHeight = !hasImageTagHeight;
}
}
if (hasImageTagHeight)
{
imgRun.Height = height.Number;
}
else if (imgRun.HasUserImageContent)
{
imgRun.Height = imgRun.ImageRectangle == Rectangle.Empty ? imgRun.OriginalImageHeight : imgRun.ImageRectangle.Height;
}
else
{
imgRun.Height = imgRun.Width > 0 ? imgRun.Width * 1.14f : 22.8f;
}
if (imgRun.HasUserImageContent)
{
// 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.
float ratio = imgRun.Width / imgRun.OriginalImageWidth;
imgRun.Height = imgRun.OriginalImageHeight * 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.
float ratio = imgRun.Height / imgRun.OriginalImageHeight;
imgRun.Width = imgRun.OriginalImageWidth * ratio;
}
}
//imageWord.Height += imageWord.OwnerBox.ActualBorderBottomWidth + imageWord.OwnerBox.ActualBorderTopWidth + imageWord.OwnerBox.ActualPaddingTop + imageWord.OwnerBox.ActualPaddingBottom;
}
/// <summary>
/// async request for image
/// </summary>
/// <param name="binder"></param>
/// <param name="requestFrom"></param>
public void RequestImageAsync(ImageBinder binder, CssImageRun imgRun, object requestFrom)
{
if (htmlContainer != null)
{
this.htmlContainer.RaiseImageRequest(
binder,
requestFrom,
false);
}
else
{
binder.LazyLoadImage();
}
//--------------------------------------------------
if (binder.State == ImageBinderState.Loaded)
{
Image img = binder.Image;
if (img != null)
{
//set real image info
imgRun.ImageRectangle = new Rectangle(
(int)imgRun.Left, (int)imgRun.Top,
img.Width, img.Height);
}
}
}
