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Using the Text Item object, Determining a layer’s kind

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CHAPTER 3: Scripting Photoshop Working with the Photoshop Object Model 41 Using the Text Item object You can change an existing ArtLayer object to a text layer, that is, a Text Item object, if the layer is empty. Conversely you can change a Text Item object to an ArtLayer object. This "reverse" procedure rasterizes the text in the layer object. The Text Item object is a property of the ArtLayer object. However, to create a new text layer, you must create a new ArtLayer object and then set the art layer's kind/Kind/kind property to text layer (2 (psTextLayer)/ LayerKind.TEXT). To set or manipulate text in a text layer, you use the text-object (TextItem/TextItem) object, which is contained in the text object/TextItem/textItem property of the ArtLayer object. Creating a Text Item object The following examples create an ArtLayer object and then use the kind property to convert it to a text layer. AS make new art layer in current document with properties { kind: text layer } VBS set newLayerRef = docRef.ArtLayers.Add() newLayerRef.Kind = 2 '2 indicates psTextLayer JS var newLayerRef = docRef.artLayers.add() newLayerRef.kind = LayerKind.TEXT See "Photoshop Object Model" on page 11 for information on the relationship between ArtLayer objects and TextItem objects. Also, look up the following: ➤ The Kind/kind and TextItem/textItem properties of the ArtLayer object in the Adobe Photoshop CS4 Visual Basic Scripting Reference, Adobe Photoshop CS4 JavaScript Scripting Reference, or in the Visual Basic Object Browser and the ExtendScript Object Model Viewer. ➤ The kind and text object properties of the class art layer in the Adobe Photoshop CS4 AppleScript Scripting Reference or in the Photoshop AppleScript Dictionary. Determining a layer's kind The following examples use an if statement to check whether an existing layer is a text layer. AS if (kind of layerRef is text layer) then ... endif VBS If layerRef.Kind = 2 Then '2 indicates psTextLayer ... End If JS if (newLayerRef.kind == LayerKind.TEXT) {...}

Section	Page
Adobe® Creative Suite® 4 Photoshop® Scripting Guide	2
Introduction	6
About this Manual	6
Conventions in this Guide	6
Photoshop Scripting Basics	8
Scripting Overview	8
Why use scripts instead of actions?	8
Scripting Support in Photoshop	9
JavaScript support	9
Executing other scripts	10
Startup scripts	10
Executing JavaScripts from AS or VBS	10
Photoshop Object Model	11
Containment hierarchy	11
Application and document classes	12
Layer classes	12
Layer Comp class	13
Channel class	13
Selection class	13
History State class	13
Document Info class	13
Path Item, Sub Path Item, and Path Point classes	14
Preferences class	14
Notifier class	14
Count Item class	14
Color Sampler class	14
Measurement Scale class	14
The containment hierarchy and the Photoshop user interface	14
Additional objects	16
Constants	16
Creating a sample Hello World script	17
Creating and running an AppleScript	18
Creating and running a VBScript	19
Creating and running a JavaScript	19
Scripting Photoshop	21
Viewing Photoshop Objects, Commands, and Methods	21
Viewing Photoshop’s AppleScript dictionary	21
Viewing Photoshop’s type library (VBS)	22
Targeting and Referencing the Application Object	22
Creating New Objects in a Script	23
Setting the Active Object	25
Setting the active document	26
Setting the active layer	27
Setting the active channels	28
Opening a Document	28
Opening a file with default file format	28
Specifying file formats to open	29
Saving a Document	31
Setting Application Preferences	32
Allowing or Preventing Dialogs	33
Working with the Photoshop Object Model	33
Using the Application object	34
Using the Document object	34
Manipulating a document object	35
Working with layer objects	36
Creating an ArtLayer object	37
Creating a Layer Set object	38
Referencing ArtLayer objects	38
Working with Layer Set objects	39
Linking layer objects	40
Applying styles to layers	40
Using the Text Item object	41
Determining a layer’s kind	41
Adding and manipulating text in a Text Item object	42
Working with Selection objects	42
Creating and defining a selection	43
Stroking the selection border	44
Inverting selections	44
Expanding, contracting, and feathering selections	44
Filling a selection	45
Loading and storing selections	45
Working with Channel objects	46
Changing channel types	46
Using the Document Info object	47
Using history state objects	47
Using Notifier objects	48
Using the PathItem object	49
Working with color objects	51
Solid color classes	52
Using hex values for RGB color	52
Getting and converting colors	52
Comparing colors	53
Getting a Web-safe color	53
Working with Filters	53
Other filters	54
Understanding Clipboard Interaction	54
Using the copy and paste commands	54
Using the copy merged command/method	55
Working with Units	56
Unit values	56
Special unit value types	56
AppleScript unit considerations	56
Using unit values in calculations	57
Unit value usage	57
Setting ruler and type units in a script	59
Sample Workflow Automation JavaScripts	60
Advanced Scripting	60
Working with document preferences	61
Applying color to a text item	64
Applying a wave filter	66
Defining the area of a selection object	67
Applying a MotionBlur filter	71
Action Manager	73
The ScriptListener Plug-In	73
Installing ScriptListener	73
Action Manager Scripting Objects	74
Recording a Script using ScriptListener	74
Using the Action Manager from JavaScript	75
Using the Action Manager from a VBS Script	76
Running JavaScript-based Action Manager code from VBScript	79
Running JavaScript-based Action Manager code from AppleScript	80
Using ScriptListener to find event IDs and class IDs	81

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HAPTER

3: Scripting Photoshop

Working with the Photoshop Object Model

Using the Text Item object

You can change an existing

ArtLayer

object to a text layer, that is, a

Text

Item

object, if the layer is

empty. Conversely you can change a

Text

Item

object to an

ArtLayer

object. This “reverse” procedure

rasterizes the text in the layer object.

The

Text

Item

object is a property of the

ArtLayer

object. However, to create a new text layer, you must

create a new

ArtLayer

object and then set the art layer's

kind/Kind/kind

property to

text

layer

(psTextLayer)/

LayerKind.TEXT

To set or manipulate text in a text layer, you use the

text-object

(TextItem/TextItem)

object, which is

contained in the

text

object/TextItem/textItem

property of the

ArtLayer

object.

Creating a Text Item object

The following examples create an

ArtLayer

object and then use the

kind

property to convert it to a text

layer.

make new art layer in current document with properties { kind: text layer }

VBS

set newLayerRef = docRef.ArtLayers.Add()

newLayerRef.Kind = 2

'2 indicates psTextLayer

var newLayerRef = docRef.artLayers.add()

newLayerRef.kind = LayerKind.TEXT

See

“Photoshop Object Model” on page 11

for information on the relationship between

ArtLayer

objects

and

TextItem

objects.

Also, look up the following:

➤

The

Kind/kind

and

TextItem/textItem

properties of the

ArtLayer

object in the

Adobe Photoshop

CS4 Visual Basic Scripting Reference

Adobe Photoshop CS4 JavaScript Scripting Reference

, or in the Visual

Basic Object Browser and the ExtendScript Object Model Viewer.

➤

The

kind

and

text

object

properties of the class

art

layer

in the

Adobe Photoshop CS4 AppleScript

Scripting Reference

or in the Photoshop AppleScript Dictionary.

Determining a layer’s kind

The following examples use an

statement to check whether an existing layer is a text layer.

if (kind of layerRef is text layer) then

...

endif

VBS

If layerRef.Kind = 2 Then '2 indicates psTextLayer

...

End If

if (newLayerRef.kind == LayerKind.TEXT)

{...}