Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 238)

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CHAPTER 6

Pickers, Pop-up Views, and Overviews

6-38 Specifying the List of Items for a Popup

Table 6-2 describes the frame used to specify a string with an icon in the picker list.

Table 6-1 Item frame for strings and bitmaps

Slot name Description

item

The item string or bitmap reference.

pickable

A ﬂag that determines whether the item is pickable.

Specify non-

nil if you want the item to be pickable, or

nil if you don’t want the item pickable. Not-pickable

items appear in the list but are not highlighted and can’t be

selected.

mark

A character displayed next to an item when it’s chosen.

Specify a dollar sign followed by the character you want to

use to mark this item if it is chosen. For example,

$\uFC0B

speciﬁes the check mark symbol. (You can use the constant

kCheckMarkChar to specify the check mark character.)

fixedHeight

When you give a bitmap, you can give this slot for the ﬁrst

item in order to force all items to be the same size. If you

use bitmaps in a list that can become large enough to

scroll, you should specify the

fixedHeight slot for

every item. You can also use slot this for any item to

specify a height different from other items.

Table 6-2 Item frame for string with icon

Slot name Description

item

The item string.

icon

A bitmap frame, as returned from the compile-time function

GetPictAsBits. The bitmap is displayed to the left of the

text, and the text is drawn ﬂush against it, unless the

indent slot is specified.

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Apple Newton Utilities Guide de l'utilisateur Page 238

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