%ZEN.ComponentEx.scribbleArea

Inherited description: The default css class used for the main element within this control. This is overridden by subclasses.

Inherited description: CSV list of additional include files (either .js or .css) that should be included when this component is used on a page.
By default, the file extension (.js or .css) is used to determine whether an item in the list is a script include or a style include. You can override this behavior by adding the terms "script:" or "style:" to the beginning of the file name or names. This prefix is not used as part of the include filename.

Inherited description: Optional CSS class used for the primary HTML element displayed for this control.

The level of post processing culling to apply to the input curve. A setting of zero indicates that all non-colinear data points should be retained. Higher values allow the system to cull additional points based on how much information they actually contain (information in this case being a function of change in slope of the curve at the given point) Raising the culling level reduces the memory requirements for the control's value but does so at the risk of exaggerating cusps and jitter.

The thickness of the virtual pen point. The higher the nib number the bolder the input curve will appear.

The level of post processing smoothing to apply to the input curve. A setting of zero indicate no smoothing. Smoothing is achieved by applying weighted averages to the sampled data points in an effort to reduce jitter resulting from certain input devices. When set to a small value (1 or 2) this can help curves entered with a bulky device (such as an optical mouse) more closely approximate those of a more precise input device (such as a tablet). This is, however, only an approximation and the original data is lost in the conversion.

Inherited description: Static HTML display method: draw the BODY of this component as HTML.
Subclasses implement this in order to render the static HTML contents of a component.

Export the vector description of the scribble to an external file The data stream, vector, may be either a JSON string (as returned from exportSignature() or in the internal format returned by exportAsPath(). The provided filename should be a fully qualified path-filename where the directory is either the temp directory for the instance or one of the custom whitelisted directories given in ^%SYS("ZEN","fsDirectoryWhitelist")

Add a line segment to the drawing area

Start or extend a given stroke for the current curve

Return the structure of the given curve, s, as a turtle graphics-ish path string where data points take the form of penCommand x y. The penCommand is either moveTo (m) or lineTo (l). The x value is measured with respect to the left-most side of the control's bounds and increases to the right. The y value is measured with respect to the top edge of the control and increases down the screen. This format is also used as the nominal value of the control.

Return the structure of the given curve, s, as a JSON object

Override to get current value of control.

Inherited description: This client callback is called just from refreshContents just after the new HTML is delivered from the server.

Inherited description: This client event, if present, is fired when the page is loaded.

Parse a new nominal value into the graphical context

Render the given curve, s, in the drawing area

Render the given curve using HTML 5 canvas tag methods

Render the given curve using IE's VML technology

Set the value of a named property.

Commit the latest gesture to the signature curve

Track touch gestures and generate curve data for mobile devices

Track pointer gestures and generate curve data

Extract current rendering information and abstract it into the nominal value of this control