Apple Newton Utilities Podręcznik Użytkownika Pobierz pdf (Strona 299)

100

101

CHAPTER 8

Text and Ink Input and Display

Using Text 8-7

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.

1 2 ... 294 295 296 297 298 299 300 301 302 303 304 ... 941 942

Komentarze do niniejszej Instrukcji

Brak uwag

Apple Newton Utilities Podręcznik Użytkownika Strona 299

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Oprogramowanie Apple Newton Utilities