/// <summary>
/// Get image to be used if HTML image load failed.
/// </summary>
public RImage GetLoadingFailedImage()
{
if (_errorImage == null)
{
var stream = File.OpenRead("System/Utils/ImageError.png");
if (stream != null)
{
_errorImage = ImageFromStream(stream);
}
}
return(_errorImage);
}
/// <summary>
/// Get image to be used while HTML image is loading.
/// </summary>
public RImage GetLoadingImage()
{
if (_loadImage == null)
{
var stream = File.OpenRead("System/Utils/ImageLoad.png");
if (stream != null)
{
_loadImage = ImageFromStream(stream);
}
}
return(_loadImage);
}
/// <summary>
/// Save the given image to file by showing save dialog to the client.
/// </summary>
/// <param name="image">the image to save</param>
/// <param name="name">the name of the image for save dialog</param>
/// <param name="extension">the extension of the image for save dialog</param>
/// <param name="control">optional: the control to show the dialog on</param>
protected virtual void SaveToFileInt(RImage image, string name, string extension, RControl control = null)
{
throw new NotImplementedException();
}
/// <summary>
/// Set the given image to clipboard.
/// </summary>
/// <param name="image"></param>
protected virtual void SetToClipboardInt(RImage image)
{
throw new NotImplementedException();
}
/// <summary>
/// Save the given image to file by showing save dialog to the client.<br/>
/// Not relevant for platforms that don't render HTML on UI element.
/// </summary>
/// <param name="image">the image to save</param>
/// <param name="name">the name of the image for save dialog</param>
/// <param name="extension">the extension of the image for save dialog</param>
/// <param name="control">optional: the control to show the dialog on</param>
public void SaveToFile(RImage image, string name, string extension, RControl control = null)
{
SaveToFileInt(image, name, extension, control);
}
/// <summary>
/// Set the given image to clipboard.<br/>
/// Not relevant for platforms that don't render HTML on UI element.
/// </summary>
/// <param name="image">the image object to set to clipboard</param>
public void SetToClipboard(RImage image)
{
SetToClipboardInt(image);
}
/// <summary> /// Draws the specified Image at the specified location and with the specified size. /// </summary> /// <param name="image">Image to draw. </param> /// <param name="destRect">Rectangle structure that specifies the location and size of the drawn image. </param> public abstract void DrawImage(RImage image, RRect destRect);
/// <summary> /// Get TextureBrush object that uses the specified image and bounding rectangle. /// </summary> /// <param name="image">The Image object with which this TextureBrush object fills interiors.</param> /// <param name="dstRect">A Rectangle structure that represents the bounding rectangle for this TextureBrush object.</param> /// <param name="translateTransformLocation">The dimension by which to translate the transformation</param> public abstract RBrush GetTextureBrush(RImage image, RRect dstRect, RPoint translateTransformLocation);