private void TranslateImage(float xDistance, float yDistance, AffineTransform t)
{
t.Translate(xDistance, yDistance);
t.GetMatrix(matrix);
if (fixedXPosition != null)
{
fixedXPosition += (float)t.GetTranslateX();
}
if (fixedYPosition != null)
{
fixedYPosition += (float)t.GetTranslateY();
}
}
internal static MatrixFP ToMatrixFP(AffineTransform matrix)
{
if (matrix == null)
{
return(null);
}
if (matrix.IsIdentity())
{
return(MatrixFP.Identity);
}
MatrixFP matrixFP = new MatrixFP(SingleFP.FromDouble(matrix.GetScaleX()),
SingleFP.FromDouble(matrix.GetScaleY()),
SingleFP.FromDouble(matrix.GetShearX()),
SingleFP.FromDouble(matrix.GetShearY()),
SingleFP.FromDouble(matrix.GetTranslateX()),
SingleFP.FromDouble(matrix.GetTranslateY()));
return(matrixFP);
}
// transformation already happened in AbstractSvgNodeRenderer, so no need to do a transformation here
/// <summary>Applies a transformation based on a viewBox for a given branch node.</summary>
/// <param name="context">current svg draw context</param>
internal virtual void ApplyViewBox(SvgDrawContext context)
{
if (this.attributesAndStyles != null && this.attributesAndStyles.ContainsKey(SvgConstants.Attributes.VIEWBOX
))
{
//Parse aspect ratio related stuff
String viewBoxValues = attributesAndStyles.Get(SvgConstants.Attributes.VIEWBOX);
IList <String> valueStrings = SvgCssUtils.SplitValueList(viewBoxValues);
float[] values = new float[valueStrings.Count];
for (int i = 0; i < values.Length; i++)
{
values[i] = CssUtils.ParseAbsoluteLength(valueStrings[i]);
}
Rectangle currentViewPort = context.GetCurrentViewPort();
String[] alignAndMeet = RetrieveAlignAndMeet();
String align = alignAndMeet[0];
String meetOrSlice = alignAndMeet[1];
float scaleWidth = currentViewPort.GetWidth() / values[2];
float scaleHeight = currentViewPort.GetHeight() / values[3];
bool forceUniformScaling = !(SvgConstants.Values.NONE.Equals(align));
if (forceUniformScaling)
{
//Scaling should preserve aspect ratio
if (SvgConstants.Values.MEET.Equals(meetOrSlice))
{
scaleWidth = Math.Min(scaleWidth, scaleHeight);
}
else
{
scaleWidth = Math.Max(scaleWidth, scaleHeight);
}
scaleHeight = scaleWidth;
}
AffineTransform scale = AffineTransform.GetScaleInstance(scaleWidth, scaleHeight);
float[] scaledViewBoxValues = ScaleViewBoxValues(values, scaleWidth, scaleHeight);
AffineTransform transform = ProcessAspectRatioPosition(context, scaledViewBoxValues, align, scaleWidth, scaleHeight
);
if (!scale.IsIdentity())
{
context.GetCurrentCanvas().ConcatMatrix(scale);
//Inverse scaling needs to be applied to viewport dimensions
context.GetCurrentViewPort().SetWidth(currentViewPort.GetWidth() / scaleWidth).SetX(currentViewPort.GetX()
/ scaleWidth).SetHeight(currentViewPort.GetHeight() / scaleHeight).SetY(currentViewPort.GetY() / scaleHeight
);
}
if (!transform.IsIdentity())
{
context.GetCurrentCanvas().ConcatMatrix(transform);
//Apply inverse translation to viewport to make it line up nicely
context.GetCurrentViewPort().SetX(currentViewPort.GetX() + -1 * (float)transform.GetTranslateX()).SetY(currentViewPort
.GetY() + -1 * (float)transform.GetTranslateY());
}
}
}
internal virtual void CalculateAndApplyViewBox(SvgDrawContext context, float[] values, Rectangle currentViewPort
)
{
String[] alignAndMeet = RetrieveAlignAndMeet();
String align = alignAndMeet[0];
String meetOrSlice = alignAndMeet[1];
float scaleWidth = currentViewPort.GetWidth() / values[2];
float scaleHeight = currentViewPort.GetHeight() / values[3];
bool forceUniformScaling = !(SvgConstants.Values.NONE.Equals(align));
if (forceUniformScaling)
{
//Scaling should preserve aspect ratio
if (SvgConstants.Values.MEET.Equals(meetOrSlice))
{
scaleWidth = Math.Min(scaleWidth, scaleHeight);
}
else
{
scaleWidth = Math.Max(scaleWidth, scaleHeight);
}
scaleHeight = scaleWidth;
}
AffineTransform scale = AffineTransform.GetScaleInstance(scaleWidth, scaleHeight);
float[] scaledViewBoxValues = ScaleViewBoxValues(values, scaleWidth, scaleHeight);
AffineTransform transform = ProcessAspectRatioPosition(context, scaledViewBoxValues, align, scaleWidth, scaleHeight
);
if (!scale.IsIdentity())
{
context.GetCurrentCanvas().ConcatMatrix(scale);
//Inverse scaling needs to be applied to viewport dimensions
context.GetCurrentViewPort().SetWidth(currentViewPort.GetWidth() / scaleWidth).SetX(currentViewPort.GetX()
/ scaleWidth).SetHeight(currentViewPort.GetHeight() / scaleHeight).SetY(currentViewPort.GetY() / scaleHeight
);
}
if (!transform.IsIdentity())
{
context.GetCurrentCanvas().ConcatMatrix(transform);
//Apply inverse translation to viewport to make it line up nicely
context.GetCurrentViewPort().SetX(currentViewPort.GetX() + -1 * (float)transform.GetTranslateX()).SetY(currentViewPort
.GetY() + -1 * (float)transform.GetTranslateY());
}
}
