PageTurnBox

February 29, 1996

inherits from Box;

Class Description

Class PageTurnBox draws an image of a pair of book pages, including a dog-ear corner in a card or form to simulate the appearance and action of turn pages in a book.

Programming information

Instantiate: sometimes
Subclass: rarely
Call its methods: rarely

You might use objects of class PageTurnBox if you want to simulate a book's appearance and page-turning ability.

Methods defined by class PageTurnBox

Class PageTurnBox defines the following methods:

Method	Description
AboutToHide	Overridden to turn blinking off before hiding.
Blink	Determines whether corner blinks periodically.
CanContain	Overridden to always return false.
Draw	Overridden to draw the object.
Idle	Overridden to blink the corner if appropriate.
SetBlink	Sets whether corner should blink periodically.
Tap	Overridden to test whether user tapped page-turn area.
Touch

Fields defined by class PageTurnBox

Class PageTurnBox defines the following fields::

Field	Type	Description
Inherited from SingleLinkable
next	Object	Next item in view list
Inherited from Linkable
previous	Object	Previous item in view list
Inherited from Viewable
superview	Viewable	Container for this object
subview	Viewable	Object contained by this object
relativeOrigin	Dot	Origin relative to superview
contentSize	Dot	Size of content rectangle
viewFlags	Unsigned	Property settings
labelStyle	TextStyle	Text style of object's label
color	Color	Color of object's content
shadow	Shadow	Shadow drawn with object
sound	Sound	Sound associated with object
Inherited from HasBorder
border	Border	Frame drawn around object
Defined by PageTurnBox
turnRight	Boolean	Responds to request to turn page forward
turnLeft	Boolean	Responds to request to turn page back
drawPageNums	Boolean	Determines whether page numbers are drawn at bottom
blink	Boolean	Determines whether right page corner blinks
blinkHilite	Boolean	Indicates whether right page corner is blinking right now
lastBlink	Unsigned	Time of last blink in milliseconds
tapMargin	Micron	Width of active area for page turning
centerImage	BorderImage	Image to repeat to make center line
tabImage	Image	Imaeg for left page turn folded over tab
numberPosition	Dot	Location of page number on left page

Method Descriptions

AboutToHide

overrides AboutToHide

Call: rarely
Override: sometimes

Class PageTurnBox overrides AboutToHide to make sure the corner is not blinking before it is hidden.

CanContain

overrides CanContain

Call: rarely
Override: sometimes

Class PageTurnBox overrides to always return false.

Draw

overrides Draw

Call: rarely
Override: sometimes

Class PageTurnBox overrides Draw to draw its center line, border, and page numbers.

Idle

overrides Idle

Call: rarely
Override: sometimes

Class PageTurnBox overrides Idle to blink the page turn box if the appropriate flags are set. See the description of this class's fields for more information.

Tap

overrides Tap

Call: rarely
Override: sometimes

Class PageTurnBox overrides Tap to test whether the user has tapped the page-turning areas.