/// <summary>
/// Adds image watermark to an image.
/// </summary>
/// <param name="watermarkImage">Image to use as a watermark.</param>
/// <param name="width">Width of watermark.</param>
/// <param name="height">Height of watermark.</param>
/// <param name="horizontalAlign">Horizontal alignment for watermark image. Can be "right", "left", or "center".</param>
/// <param name="verticalAlign">Vertical alignment for watermark image. Can be "top", "bottom", or "middle".</param>
/// <param name="opacity">Watermark text opacity. Should be between 0 and 100.</param>
/// <param name="padding">Size of padding around watermark image in pixels.</param>
/// <returns>Modified WebImage instance with added watermark.</returns>
public WebImage AddImageWatermark(
WebImage watermarkImage,
int width = 0,
int height = 0,
string horizontalAlign = "Right",
string verticalAlign = "Bottom",
int opacity = 100,
int padding = 5)
{
if (watermarkImage == null)
{
throw new ArgumentNullException("watermarkImage");
}
if (width < 0)
{
throw new ArgumentOutOfRangeException(
"width",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
if (height < 0)
{
throw new ArgumentOutOfRangeException(
"height",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
if (((width == 0) && (height > 0)) || ((width > 0) && (height == 0)))
{
throw new ArgumentException(HelpersResources.WebImage_IncorrectWidthAndHeight);
}
if ((opacity < 0) || (opacity > 100))
{
throw new ArgumentOutOfRangeException("opacity", String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_Between, 0, 100));
}
HorizontalAlign horizontalAlignEnum = ParseHorizontalAlign(horizontalAlign);
VerticalAlign verticalAlignEnum = ParseVerticalAlign(verticalAlign);
if (padding < 0)
{
throw new ArgumentOutOfRangeException(
"padding",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
WatermarkImageTransformation transformation =
new WatermarkImageTransformation(watermarkImage.Clone(), width, height, horizontalAlignEnum, verticalAlignEnum, opacity, padding);
_transformations.Add(transformation);
return(this);
}
/// <summary>
/// Adds image watermark to an image.
/// </summary>
/// <param name="watermarkImage">Image to use as a watermark.</param>
/// <param name="width">Width of watermark.</param>
/// <param name="height">Height of watermark.</param>
/// <param name="horizontalAlign">Horizontal alignment for watermark image. Can be "right", "left", or "center".</param>
/// <param name="verticalAlign">Vertical alignment for watermark image. Can be "top", "bottom", or "middle".</param>
/// <param name="opacity">Watermark text opacity. Should be between 0 and 100.</param>
/// <param name="padding">Size of padding around watermark image in pixels.</param>
/// <returns>Modified WebImage instance with added watermark.</returns>
public WebImage AddImageWatermark(
WebImage watermarkImage,
int width = 0,
int height = 0,
string horizontalAlign = "Right",
string verticalAlign = "Bottom",
int opacity = 100,
int padding = 5) {
if (watermarkImage == null) {
throw new ArgumentNullException("watermarkImage");
}
if (width < 0) {
throw new ArgumentOutOfRangeException(
"width",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
if (height < 0) {
throw new ArgumentOutOfRangeException(
"height",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
if (((width == 0) && (height > 0)) || ((width > 0) && (height == 0))) {
throw new ArgumentException(HelpersResources.WebImage_IncorrectWidthAndHeight);
}
if ((opacity < 0) || (opacity > 100)) {
throw new ArgumentOutOfRangeException("opacity", String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_Between, 0, 100));
}
HorizontalAlign horizontalAlignEnum = ParseHorizontalAlign(horizontalAlign);
VerticalAlign verticalAlignEnum = ParseVerticalAlign(verticalAlign);
if (padding < 0) {
throw new ArgumentOutOfRangeException(
"padding",
String.Format(CultureInfo.InvariantCulture, CommonResources.Argument_Must_Be_GreaterThanOrEqualTo, 0));
}
WatermarkImageTransformation transformation =
new WatermarkImageTransformation(watermarkImage.Clone(), width, height, horizontalAlignEnum, verticalAlignEnum, opacity, padding);
_transformations.Add(transformation);
return this;
}
