Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 108)

100

101

CHAPTER 3

Views

3-24 About Views

■ fxZoomCloseEffect—opposite of fxZoomOpenEffect. This value

shrinks the image of the view from a point in the center until it disappears or

closes on the screen.

■ fxZoomVerticalEffect—the view expands out from a horizontal line in the

center of its bounds. The top half moves upward and lower half moves

downward.

A complete

viewEffect speciﬁcation might look like this:

fxVenetianBlindsEffect+fxSteps(6)+fxStepTime(8)

You can omit the fxSteps and fxStepTime constants and appropriate defaults

will be used, depending on the type of the effect.

Table 2-7 (page 2-86) in Newton Programmer’s Reference lists the constants that

you can use in the

viewEffect slot to create custom animation effects. You

combine these constants in different ways to create different effects. For example,

the predeﬁned animation type fxCheckerboardEffect is deﬁned as:

fxColumns(8)+fxRows(8)+fxColAltPhase+fxRowAltPhase+fxDown

It is difﬁcult to envision what the different effects will look like in combination, so it

is best to experiment with various combinations until you achieve the effect you want.

Other Characteristics 3

Other view characteristics are controlled by the following slots:

viewFont Speciﬁes the font used in the view. This slot applies only to

views that hold text, that is, views of the class

clParagraphView. For more information about how to

specify the font, see the section “Using Fonts for Text and

Ink Display” (page 8-17) in “Text and Ink Input and Display”

declareSelf When the template is instantiated, a slot named with the

value of this slot is added to the view. Its value is a reference

to itself. For example, if you specify declareSelf:'base,

a slot named

base is added to the view and its value is set to

a reference to itself. Note that this slot is not inherited by the

children of a view; it applies only to the view within which

it exists.

Inheritance Links 3

These slots describe the template’s location in the inheritance chain, including

references to its proto, parent, and children. The following slots are not inherited

by children of the template.

_proto Contains a reference to a proto template. This slot is created

when the view opens.

1 2 ... 103 104 105 106 107 108 109 110 111 112 113 ... 941 942

Commentaires sur ces manuels

Pas de commentaire

Apple Newton Utilities Guide de l'utilisateur Page 108

Commentaires sur ces manuels

Produits connexes et manuels pour Logiciel Apple Newton Utilities