Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 302)

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101

CHAPTER 8

Text and Ink Input and Display

8-10 Using Text

IMPORTANT

You store view templates (not view objects) in the

viewChildren array of an edit view. ▲

Paragraph Views 8

The clParagraphView class displays text or accepts text input. It includes the

following features:

■ Text recognition

■ Text correction

■ Text editing, including scrubbing, selection, copying to the clipboard, pasting

from the clipboard, and other gestures, including duplicating, as controlled by

the setting of the

viewFlags slot.

■ Automatic word-wrapping.

■ Support for the caret gesture, which adds a space or splits a word.

■ Clipping of text that won’t ﬁt in the view. (An ellipsis is shown to indicate text

beyond what is visible.)

■ Use of ink and different text fonts (styles) within the same paragraph.

■ Tab-stop alignment of text.

■ Automatic resizing to accommodate added text (when this view is enclosed in a

clEditView). This feature is controlled by the vCalculateBounds flag in

the

viewFlags slot.

■ Automatic addition of new words written near the view when this view is

enclosed in a

clEditView and caret insertion writing mode is disabled.

The slots of

clParagraphView are described in “Paragraph View

(clParagraphView)” (page 7-15) in Newton Programmer’s Reference.

Note that you don’t need to create paragraph views yourself if you are accepting

user input inside a

clEditView. Just provide a clEditView and when the user

writes in it, the view automatically creates paragraph views to hold text.

The following is an example of a template deﬁning a view of the

clParagraphView class:

dateSample := {...

viewClass: clParagraphView,

viewBounds: {left:50, top:50, right:200, bottom:70},

viewFlags: vVisible+vReadOnly,

viewFormat: vfFillWhite,

viewJustify: oneLineOnly,

text: "January 24, 1994",

1 2 ... 297 298 299 300 301 302 303 304 305 306 307 ... 941 942

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Apple Newton Utilities Guide de l'utilisateur Page 302

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