EDOBE XDOM TAKE 6 IR - PRODUCTSHEET Especificações descarregar pdf (Página 72)

CHAPTER 4: User-Interface Tools Types of controls 72

Displaying images

You can display icon images in Image or IconButton controls, or display images in place of strings or in

addition to strings as the selectable items in a

Listbox or DropdownList control. In each case, the image

is defined by setting the element’s

image property. You can set it to a ScriptUIImage object; a named icon

resource; a File object

; or the pathname of a file containing the iconic image, or of an alias or shortcut to

that file (see “

Specifying paths” on page 39).

The image data for an icon can be in Portable Network Graphics (PNG) format, or in Joint Photographic

Experts Group (JPEG) format. See http://www.libpng.org

and http://www.jpeg.org/ for detailed

information on these formats.

You can set or reset the

image property at any time to change the image displayed in the element.

The scripting environment can define icon resources, which are available to scripts by name. To specify an

icon resource, set a control’s

image property to the resource’s JavaScript name, or refer to the resource by

name when creating the control. For example, to create a button with an application-defined icon

resource:

myWin.upBtn = myWin.add ("iconbutton", undefined, "SourceFolderIcon");

Photoshop CS5, for example, defines these icon resources:

Step1Icon

Step2Icon

Step3Icon

Step4Icon

SourceFolderIcon

DestinationFolderIcon

ListItem

Items added to or inserted into any type of list control are ListItem objects, with

properties that can be manipulated from a script.

ListItem elements can be of the

following types:

X item: the typical item in any type of list. It displays text or an image, and can be

selected. To display an image, set the item object’s

image property; see

“

Displaying images” on page 72.

X separator: a separator is a nonselectable visual element in a drop-down list.

Although it has a

text property, the value is ignored, and the item is displayed as

a horizontal line.

X node: a displayable and selectable item in a TreeView control which can contain

other

ListItem objects, including other items of type node.

FlashPlayer

Runs a Flash movie within a ScriptUI window. Its control’s methods allow you to load a

movie from an SWF file and control the playback. See “

FlashPlayer control functions”

on page 145.

You can also use the control object to communicate with the Flash application, calling

ActionScript methods, and making JavaScript methods defined in your Adobe

application script available to the Flash ActionScript code. See “

Calling ActionScript

functions from a ScriptUI script” on page 86.

The

title property provides an optional label; the titleLayout property places the

label with respect to the player.

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