Text and Ink Input and Display

Using Text

instead, they have child views that contain the individual data items. Text items
are contained in child views of the class

clParagraphView

and graphics are

contained in child views of the class

clPolygonView

.

A view of the

clEditView

class includes the following features:

Automatic creation of

clParagraphView

or

clPolygonView

children as

the user writes or draws in the view. These child views hold the data the user writes.

Support for inclusion of

clPictureView

views, which are used for images.

Text and shape recognition, selection, and gestures such as scrubbing, copying
to clipboard, pasting from clipboard, duplicating, and others, as controlled by
the setting of the

viewFlags

slot. The initial recognition is handled by the

clEditView

. A child

clParagraphView

or

clPolygonView

is created

and that child view handles subsequent editing of the data.

Drag and drop handling. A child view can be dragged (moved or copied) out of
the

clEditView

and dropped into another

clEditView

, whose child it then

becomes. Other views can be configured to handle data dragged from a

clEditView

, as described in "Views" (page 3-1).

Clipboard support. A

clParagraphView

or

clPolygonView

child view can

be dragged (moved or copied) to the clipboard, from which it can be pasted into
another

clEditView

or

clView

, whose child it becomes.

Automatic resizing of

clParagraphView

child views to accommodate added

input. This feature is controlled by the

vCalculateBounds

flag in the

viewFlags

slot of those child views.

Automatic addition of new words to existing paragraphs when caret insertion
writing mode is disabled.

Views of the class

clEditView

are intended for user input of text, shape, image,

and ink data. Consequently, views of this class expect that any child views have
been defined and created at run time, not predefined by templates created in NTK.

If you need to include predefined child views in a

clEditView

, use the

ViewSetupChildrenScript

method of the

clEditView

to define the child

views and set up the

stepChildren

array. You might need to do this, for

example, if you store the data for child views in a soup, and you need to retrieve
the data and rebuild the child views at run time. For more information, see
"Including Editable Child Views in an Input View" (page 8-9).

The default font for a

clParagraphView

created by a

clEditView

is the font

selected by the user on the Styles palette in the system.

The default pen width for a

clPolygonView

created by a

clEditView

is the

width set by the user on the Styles palette.

The slots of

clEditView

are described in "General Input View (clEditView)"

(page 7-12) in Newton Programmer's Reference.