Function image_presenter 

pub fn image_presenter() -> UiNode

Renders the CONTEXT_IMAGE_VAR if set.

This is the inner-most node of an image widget, it is fully configured by context variables:

• CONTEXT_IMAGE_VAR: Defines the image to render.
• IMAGE_CROP_VAR: Clip the image before layout.
• IMAGE_SCALE_DENSITY_VAR: If the image desired size is scaled by pixel density.
• IMAGE_SCALE_FACTOR_VAR: If the image desired size is scaled by the screen scale factor.
• IMAGE_SCALE_VAR: Custom scale applied to the desired size.
• IMAGE_FIT_VAR: Defines the image final size.
• IMAGE_ALIGN_VAR: Defines the image alignment in the presenter final size.
• IMAGE_RENDERING_VAR: Defines the image resize algorithm used in the GPU.
• IMAGE_OFFSET_VAR: Defines an offset applied to the image after all measure and arrange.