/// <summary>Prepares the image rectangle for drawing.</summary>
/// <remarks>
/// Prepares the image rectangle for drawing. This means that the size and position of the image
/// rectangle will be changed to match the
/// <see cref="BackgroundRepeatValue"/>
/// values for the axes.
/// </remarks>
/// <param name="imageRectangle">the image rectangle which will be changed</param>
/// <param name="backgroundArea">the background available area</param>
/// <returns>the necessary whitespace between backgrounds</returns>
public virtual Point PrepareRectangleToDrawingAndGetWhitespace(Rectangle imageRectangle, Rectangle backgroundArea
, BackgroundSize backgroundSize)
{
if (BackgroundRepeat.BackgroundRepeatValue.ROUND == xAxisRepeat)
{
int ratio = iText.Layout.Properties.BackgroundRepeat.CalculateRatio(backgroundArea.GetWidth(), imageRectangle
.GetWidth());
float initialImageRatio = imageRectangle.GetHeight() / imageRectangle.GetWidth();
imageRectangle.SetWidth(backgroundArea.GetWidth() / ratio);
if (BackgroundRepeat.BackgroundRepeatValue.ROUND != yAxisRepeat && backgroundSize.GetBackgroundHeightSize(
) == null)
{
imageRectangle.MoveUp(imageRectangle.GetHeight() - imageRectangle.GetWidth() * initialImageRatio);
imageRectangle.SetHeight(imageRectangle.GetWidth() * initialImageRatio);
}
}
if (BackgroundRepeat.BackgroundRepeatValue.ROUND == yAxisRepeat)
{
int ratio = iText.Layout.Properties.BackgroundRepeat.CalculateRatio(backgroundArea.GetHeight(), imageRectangle
.GetHeight());
float initialImageRatio = imageRectangle.GetWidth() / imageRectangle.GetHeight();
imageRectangle.MoveUp(imageRectangle.GetHeight() - backgroundArea.GetHeight() / ratio);
imageRectangle.SetHeight(backgroundArea.GetHeight() / ratio);
if (BackgroundRepeat.BackgroundRepeatValue.ROUND != xAxisRepeat && backgroundSize.GetBackgroundWidthSize()
== null)
{
imageRectangle.SetWidth(imageRectangle.GetHeight() * initialImageRatio);
}
}
return(ProcessSpaceValueAndCalculateWhitespace(imageRectangle, backgroundArea));
}
public virtual void ConstructorTest()
{
BackgroundSize size = new BackgroundSize();
NUnit.Framework.Assert.IsFalse(size.IsContain());
NUnit.Framework.Assert.IsFalse(size.IsCover());
NUnit.Framework.Assert.IsNull(size.GetBackgroundWidthSize());
NUnit.Framework.Assert.IsNull(size.GetBackgroundHeightSize());
}
public virtual void ClearAndSetToContainTest()
{
BackgroundSize size = new BackgroundSize();
size.SetBackgroundSizeToValues(UnitValue.CreatePointValue(10), UnitValue.CreatePointValue(10));
size.SetBackgroundSizeToContain();
NUnit.Framework.Assert.IsTrue(size.IsContain());
NUnit.Framework.Assert.IsFalse(size.IsCover());
NUnit.Framework.Assert.IsNull(size.GetBackgroundWidthSize());
NUnit.Framework.Assert.IsNull(size.GetBackgroundHeightSize());
}
