PDFTron WebViewer

Class: CountMeasurementCreateTool

Core.Tools. CountMeasurementCreateTool

Represents the tool to create count measurement annotations

new CountMeasurementCreateTool(docViewer)

Creates a new instance of the CountMeasurementCreateTool
Parameters:
Name Type Description
docViewer Core.DocumentViewer An instance of DocumentViewer

Extends

Methods

addEventListener(type, fn [, options])

Add a handler to the given event name
Parameters:
Name Type Argument Description
type string | number The name of the event to listen to
fn function The handler to be called when the event is triggered
options object <optional>
 Optional options object for addEventListener
Properties
Name Type Description
once boolean If true then the handler will be called only once
Inherited From:
Returns:
Returns the object that 'addEventListener' is being called on
Type
object
Example
myObject.addEventListener('eventName', (eventParameter1, eventParameter2) => {
  ...
});

contextMenu(e)

The function is called when a context menu should be shown. Use e.preventDefault to disable the default browser context menu.
Parameters:
Name Type Description
e The event object
Inherited From:

disableCreationOverAnnotation()

Prevent the tool from creating new annotations when hovering over an existing annotation. The annotation will be selected instead.
Inherited From:

disableViewStateSaving()

When called new annotations will not have a ViewState applied to them. By default no ViewState is applied. ViewState is the state of the viewer when the annotation is created. When the annotation is double clicked and ViewState exists, the viewer state will be set to the ViewState
Inherited From:

enableCreationOverAnnotation()

Allow the tool to create new annotations when hovering over an existing annotation
Inherited From:

enableViewStateSaving()

When enabled, new annotations will have a ViewState applied to them. ViewState is the state of the viewer when the annotation is created. When the annotation is double clicked and ViewState exists, the viewer state will be set to the ViewState
Inherited From:

getDocumentViewer()

Returns the instance of DocumentViewer for this tool.
Inherited From:
Returns:
The instance of DocumentViewer for this tool.
Type
Core.DocumentViewer

getMouseLocation(e)

Takes an event object from a mouse event and converts the location into window coordinates
Parameters:
Name Type Description
e The event object containing mouse coordinates
Inherited From:
Returns:
Returns an object with x and y coordinates of the mouse cursor in the viewer
Type
Core.Math.Point

keyDown(e)

The function is called when a keyboard key is down.
Parameters:
Name Type Description
e The event object containing keyboard key data.
Inherited From:

mouseDoubleClick(e)

The function is called when the mouse left button is double clicked.
Parameters:
Name Type Description
e The event object containing mouse coordinates.
Inherited From:

mouseLeftDown(e)

The function called when the left mouse button is down
Parameters:
Name Type Description
e The event object containing mouse coordinates.
Inherited From:

mouseLeftUp(e)

The function called when the left mouse button is up. Typically, annotations are created and added to the annotation manager at this point.
Parameters:
Name Type Description
e The event object containing mouse coordinates.
Inherited From:

mouseMove(e)

The function called when the mouse moves.
Parameters:
Name Type Description
e The event object containing mouse coordinates.
Inherited From:

mouseRightDown(e)

The function called when the right mouse button is down.
Parameters:
Name Type Description
e The event object containing mouse coordinates.
Inherited From:

off( [type] [, fn])

Remove a handler of the given event name
Parameters:
Name Type Argument Description
type string | number <optional>
 The name of the event to remove the handler of. If type is undefined, all the handlers of the object will be removed
fn function <optional>
 The handler associated with this event to be removed. If fn is undefined, all the handlers of the given event name will be removed
Inherited From:
Deprecated:
Returns:
Returns the object that 'off' is being called on
Type
object
Example
myObject.off();
myObject.off('eventName');
myObject.off('eventName', fn);

on(type, fn)

Add a handler to the given event name
Parameters:
Name Type Description
type string | number The name of the event to listen to
fn function The handler to be called when the event is triggered
Inherited From:
Deprecated:
Returns:
Returns the object that 'on' is being called on
Type
object
Example
myObject.on('eventName', (eventParameter1, eventParameter2) => {
  ...
});

one(type, fn)

Same as 'on' except the handler will be called only once
Parameters:
Name Type Description
type string | number The name of the event to listen to
fn function The handler to be called when the event is triggered
Inherited From:
Deprecated:
  • Since version 8.0. Use addEventListener with {'once': true} as options instead.
Returns:
Returns the object that 'one' is being called on
Type
object
Example
myObject.one('eventName', (eventParameter1, eventParameter2) => {
 ...
});

removeEventListener( [type] [, fn])

Remove a handler of the given event name
Parameters:
Name Type Argument Description
type string | number <optional>
 The name of the event to remove the handler of. If type is undefined, all the handlers of the object will be removed
fn function <optional>
 The handler associated with this event to be removed. If fn is undefined, all the handlers of the given event name will be removed
Inherited From:
Deprecated:
  • for version 9.0. Use [removeEventListener] with fn specified
Returns:
Returns the object that 'removeEventListener' is being called on
Type
object
Example
myObject.removeEventListener();
myObject.removeEventListener('eventName');
myObject.removeEventListener('eventName', fn);

setAllowCreationOverAnnotation(val)

Sets whether new annotations can be created by the tool when hovering over an existing annotation
Parameters:
Name Type Description
val boolean Whether creation of annotation is allowed when hovering over another annotation
Inherited From:
Deprecated:
  • since version 8.0 Please use enableCreationOverAnnotation or disableCreationOverAnnotation instead

setName(name)

Set the name of the tool, which can be accessed by toolObject.name
Parameters:
Name Type Description
name string Name of the tool
Inherited From:

setSaveViewState(val)

Sets whether new annotations have a ViewState applied to them. ViewState is the state of the viewer when the annotation is created. When the annotation is double clicked and ViewState exists, the viewer state will be set to the ViewState
Parameters:
Name Type Description
val boolean
Inherited From:
Deprecated:
  • since version 8.0 Please use enableViewStateSaving or disableViewStateSaving instead

setStyles(newStyles)

Set the style for the tool, which will be applied to annotations drawn afterwards
Parameters:
Name Type Description
newStyles object | function if an object is used, it should contain properties of the new styles. If a function is used, the current styles will be passed as its argument and the function should return an object which contains properties of the new styles. Example of valid properties: StrokeColor, TextColor, FillColor, FontSize, Opacity, StrokeThickness, Precision, Scale, OverlayText, Style and Dashes.
Inherited From:

switchIn(oldTool)

The function is called when this tool is selected. Typically use for changing mouse cursors, and initializing states for the tool.
Parameters:
Name Type Description
oldTool Core.Tools.Tool The Tool class that was previously selected.
Inherited From:

switchOut(newTool)

The function is called when this tool is deselected. Typically use for changing mouse cursors, and cleaning up states for the tool.
Parameters:
Name Type Description
newTool Core.Tools.Tool The Tool class that was newly selected.
Inherited From:

trigger(type [, data])

Calls the handlers of the event name with given data
Parameters:
Name Type Argument Description
type string | number event name of which the handlers will be called.
data * <optional>
 data that will be passed to the handlers. If data is an array, it will be spread and then passed to the handlers
Inherited From:
Returns:
Returns the object that 'trigger' is being called on
Type
object
Example
myObject.trigger('eventName');
myObject.trigger('eventName', [eventParameter1, eventParameter2]);

Events

annotationAdded

Triggered when an annotation has been added to the document by the tool
Parameters:
Name Type Description
annotation Core.Annotations.Annotation The annotation that was added
Inherited From:

annotationCreated

Triggered when an annotation has been created by the tool
Parameters:
Name Type Description
annotations Core.Annotations.Annotation The annotation that was created
Inherited From: