Apryse WebViewer

Class: AnnotationSelectTool

Core.Tools. AnnotationSelectTool

Represents a tool that can select annotations

new AnnotationSelectTool(docViewer)

Parameters:
Name Type Description
docViewer Core.DocumentViewer An instance of DocumentViewer.
Properties:
Name Type Description
overrideSelection boolean Whether to override the default annotation selection behavior of the tool. If true then annotations will not be selected by the tool.

Extends

Members

<static> PAGE_PADDING

padding at the page edges that defines how close annotations can be created and dragged to the edge

Methods

<static> disableDragScroll()

Disable the drag annotation and scroll feature.
Example
instance.Core.Tools.AnnotationSelectTool.disableDragScroll()

<static> enableDragScroll()

Enable the drag annotation and scroll feature.
Example
instance.Core.Tools.AnnotationSelectTool.enableDragScroll()

<static> setMaximumAnnotationSizeWhenResizing(maximumAnnotationSizeGetterFunction)

Sets the maximum size of annotations when resizing.
Parameters:
Name Type Description
maximumAnnotationSizeGetterFunction function A function that receives the annotation being resized and returns an object with width and height values that represent the maximum width and height the annotation should be allowed to resize to.
Example
instance.Core.Tools.AnnotationSelectTool.setMaximumAnnotationSizeWhenResizing((annotation) => {
  if (annotation instanceof instance.Annotations.RectangleAnnotation) {
    // maximum size for rectangles
    return { width: 100, height: 30 };
  }
  // no maximum size for other types
  return null;
});

<static> setMinimumAnnotationSizeWhenResizing(minimumAnnotationSizeGetterFunction)

Sets the minimum size of annotations when resizing.
Parameters:
Name Type Description
minimumAnnotationSizeGetterFunction function A function that receives the annotation being resized and returns an object with width and height values that represent the minimum width and height the annotation should be allowed to resize to.
Example
instance.Core.Tools.AnnotationSelectTool.setMinimumAnnotationSizeWhenResizing((annotation) => {
  if (annotation instanceof instance.Annotations.RectangleAnnotation) {
    // minimum size for rectangles
    return { width: 100, height: 30 };
  }
  // no minimum size for other types
  return null;
});

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:

disableImmediateActionOnAnnotationSelection()

Disable whether the tool should trigger an action immediately after clicking an annotation. When this is disabled you need to first click on annotation to select it before you can drag it. This behavior is disabled by default.

enableImmediateActionOnAnnotationSelection()

Sets if the tool should trigger actions immediately after clicking an annotation. For example, if this is enabled then you can immediately click and drag an annotation without making a separate click to select the annotation.
Example
To enable this for one tool (The Pan tool, for example), this can be done:

const tool = docViewer.getTool(window.Core.Tools.ToolNames.PAN);
tool.enableImmediateActionOnAnnotationSelection();

To enable this for all selection tools, this can be done:

const allTools = Object.values(docViewer.getToolModeMap());
for (const tool of allTools) {
  if (tool instanceof Tools.AnnotationSelectTool) {
    tool.enableImmediateActionOnAnnotationSelection();
  }
}

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:

removeEventListener( [type] [, fn])

Remove a handler of the given event name and namespace (if given) or with a function reference
Parameters:
Name Type Argument Description
type string | number <optional>
 The name of the event to remove the handler of with an optional namespace.
fn function <optional>
 The handler associated with this event to be removed. If fn is undefined, all the handlers of the given event namespace will be removed. If you are not passing in this parameter then a namespace must be used with the event name.
Inherited From:
Returns:
Returns the object that 'removeEventListener' is being called on
Type
object
Example
myObject.removeEventListener('eventName.namespace');
myObject.removeEventListener('eventName', fn);

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:

setStyles(newStyles)

Set the style for the tool, which will be applied to annotations drawn afterwards
Parameters:
Name Type Description
newStyles object if an object is used, it should contain 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]);