private static void ScaleHeight(float newHeight, BackgroundImage image, float?[] imageWidthAndHeight)
{
float difference = image.GetImageHeight() == 0f ? 1f : newHeight / image.GetImageHeight();
imageWidthAndHeight[0] = image.GetImageWidth() * difference;
imageWidthAndHeight[1] = newHeight;
}
private static void ApplyBackgroundSize(IList <IList <String> > backgroundProperties, float em, float rem, int
imageIndex, BackgroundImage image)
{
if (backgroundProperties == null || backgroundProperties.IsEmpty())
{
return;
}
if (image.GetForm() != null && (image.GetImageHeight() == 0f || image.GetImageWidth() == 0f))
{
return;
}
IList <String> backgroundSizeValues = backgroundProperties[GetBackgroundSidePropertyIndex(backgroundProperties
.Count, imageIndex)];
if (backgroundSizeValues.Count == 2 && CommonCssConstants.AUTO.Equals(backgroundSizeValues[1]))
{
backgroundSizeValues.JRemoveAt(1);
}
if (backgroundSizeValues.Count == 1)
{
String widthValue = backgroundSizeValues[0];
ApplyBackgroundWidth(widthValue, image, em, rem);
}
if (backgroundSizeValues.Count == 2)
{
ApplyBackgroundWidthHeight(backgroundSizeValues, image, em, rem);
}
}
private static void SetDefaultSizeIfNull(float?[] widthAndHeight, float areaWidth, float areaHeight, BackgroundImage
image, bool isGradient)
{
if (isGradient)
{
widthAndHeight[0] = widthAndHeight[0] == null ? areaWidth : widthAndHeight[0];
widthAndHeight[1] = widthAndHeight[1] == null ? areaHeight : widthAndHeight[1];
}
else
{
widthAndHeight[0] = widthAndHeight[0] == null?image.GetImageWidth() : widthAndHeight[0];
widthAndHeight[1] = widthAndHeight[1] == null?image.GetImageHeight() : widthAndHeight[1];
}
}
private static BackgroundSize CalculateBackgroundSizeForArea(BackgroundImage image, float areaWidth, float
areaHeight)
{
double widthDifference = areaWidth / image.GetImageWidth();
double heightDifference = areaHeight / image.GetImageHeight();
if (image.GetBackgroundSize().IsCover())
{
return(CreateSizeWithMaxValueSide(widthDifference > heightDifference));
}
else
{
if (image.GetBackgroundSize().IsContain())
{
return(CreateSizeWithMaxValueSide(widthDifference < heightDifference));
}
else
{
return(new BackgroundSize());
}
}
}
