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Setting Ruler and Type Units in a Script, Sample Workflow Automation JavaScripts

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Adobe Photoshop CS3 Scripting Guide Photoshop CS3 Scripting Photoshop CS3 59 AppleScript translate (delta x, delta y) translate boundary (delta x, delta y) VBScript JavaScript (Continued) Selection.Translate (DeltaX, DeltaY) selection.translate (deltaX, deltaY) Selection.TranslateBoun dary (DeltaX, DeltaY) selection.translateBou ndary (deltaX, deltaY) Setting Ruler and Type Units in a Script The unit type settings of the two Photoshop CS3 rulers control how numbers are interpreted when dealing with properties and parameters that support unit values. Be sure to set the ruler units as needed at the beginning of your scripts and save and restore the original ruler settings when your script has completed. AS In AppleScript ruler units and type units are properties of the settings-object, accessed through the Application object's settings property as shown below. set ruler units of settings to inch units set type units of settings to pixel units set point size of settings to postscript size VBS In VBScript RulerUnits and TypeUnits are properties of the Preferences object, accessed through the Application object's Preferences property as shown below. appRef.Preferences.RulerUnits = 2 'for PsUnits --> 1 (psInches) appRef.Preferences.TypeUnits = 1 'for PsTypeUnits --> 1 (psPixels) appRef.Preferences.PointSize = 2 '2 indicates psPointType --> 2 (PsPostScriptPoints) JS In JavaScript rulerUnits and typeUnits are properties of the Preferences object, accessed through the Application object's preferences property as shown below. app.preferences.rulerUnits = Units.INCHES app.preferences.typeUnits = TypeUnits.PIXELS app.preferences.pointSize = PointType.POSTSCRIPT Note: Remember to reset the unit settings back to the original values at the end of a script. See 'Working with Document Preferences' on page 60 for an example of how to do this. Sample Workflow Automation JavaScripts The following sample workflow automation JavaScripts are provided with Photoshop CS3 and demonstrate various kinds of scripting usage. The scripts are located in the Presets/Scripts folder in your application directory. See Creating and Running a JavaScript for information on the Presets/Scripts folder.

Section	Page
Contents	3
Introduction	5
About this manual	5
Conventions in this guide	5
Photoshop CS3 Scripting Basics	7
Scripting Overview	7
Why use scripts instead of actions?	7
Scripting Support in Photoshop CS3	8
JavaScript Support	8
Executing other scripts	9
Startup Scripts	9
Executing JavaScripts from AS or VBS	9
Photoshop CS3 Object Model	9
Containment Hierarchy	10
Application and Document Classes	10
Layer Classes	11
Layer Comp Class	11
Channel Class	11
Selection Class	11
History State Class	12
Document Info Class	12
Path Item, Sub Path Item, and Path Point Classes	12
Preferences Class	12
Notifier Class	12
Count Item Class	12
Color Sampler Class	12
Measurement Scale Class	12
The Containment Hierarchy and the Photoshop CS3 User Interface	12
Additional Objects	14
Constants	14
Creating a Sample Hello World Script	15
Creating and Running an AppleScript	15
Creating and Running a VBScript	16
Creating and Running a JavaScript	17
Scripting Photoshop CS3	19
Viewing Photoshop CS3 Objects, Commands, and Methods	19
Viewing Photoshop CS3’s AppleScript Dictionary	19
Viewing Photoshop CS3’s Type Library (VBS)	20
Targeting and Referencing the Application Object	20
Creating New Objects in a Script	21
Setting the Active Object	23
Setting the Active Document	24
Setting the Active Layer	25
Setting the Active Channels	25
Opening a Document	26
Opening a File with Default File Format	26
Specifying File Formats to Open	27
Saving a Document	29
Setting Application Preferences	30
Allowing or Preventing Dialogs	31
Working with the Photoshop CS3 Object Model	31
Using the Application Object	31
Using the Document Object	32
Manipulating a Document Object	32
Working with Layer Objects	34
Creating an ArtLayer Object	34
Creating a Layer Set Object	35
Referencing ArtLayer Objects	36
Working with Layer Set Objects	37
Linking Layer Objects	38
AS	38
VBS	38
JS	38
Applying Styles to Layers	38
Using the Text Item Object	39
Determining a Layer’s Kind	40
Adding and Manipulating Text in a Text Item Object	40
Working with Selection Objects	41
Creating and Defining a Selection	41
Stroking the Selection Border	42
Inverting Selections	43
Expanding, Contracting, and Feathering Selections	43
Filling a Selection	43
Loading and Storing Selections	44
Working with Channel Objects	45
Changing Channel Types	45
Using the Document Info Object	46
Using History State Objects	46
Using Notifier Objects	47
Using the PathItem Object	48
Working with Color Objects	50
Solid Color Classes	51
Using Hex Values for RGB Color	51
Getting and Converting Colors	51
Comparing Colors	52
Getting a Web Safe Color	52
Working with Filters	53
AS	53
VBS	53
JS	53
Other Filters	53
Understanding Clipboard Interaction	54
Using the Copy and Paste commands	54
Using the Copy Merged Command/Method	55
Working with Units	55
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	59
Advanced Scripting	60
Working with Document Preferences	60
Applying Color to a Text Item	63
Applying a Wave Filter	66
Defining the Area of a Selection Object	66
Applying a MotionBlur Filter	69
Action Manager	72
The ScriptListener Plug-In	72
Installing ScriptListener	72
Action Manager Scripting Objects	73
Recording a Script using ScriptListener	73
Using the Action Manager from JavaScript	74
Using the Action Manager from a VBS Script	75
Running JavaScript-based Action Manager code from VBScript	78
Running JavaScript-based Action Manager code from AppleScript	78
Using ScriptListener to find event IDs and class IDs	79

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Photoshop CS3

Adobe Photoshop CS3

Scripting Guide

Scripting Photoshop CS3

Setting Ruler and Type Units in a Script

The unit type settings of the two Photoshop CS3 rulers control how numbers are interpreted when dealing

with properties and parameters that support unit values. Be sure to set the ruler units as needed at the

beginning of your scripts and save and restore the original ruler settings when your script has completed.

In AppleScript

ruler units

and

type units

are properties of the

settings-object

, accessed through

the Application object's

settings

property as shown below.

set ruler units of settings to inch units

set type units of settings to pixel units

set point size of settings to postscript size

VBS

In VBScript

RulerUnits

and

TypeUnits

are properties of the

Preferences

object, accessed through the

Application

object's

Preferences

property as shown below.

appRef.Preferences.RulerUnits = 2 'for PsUnits --> 1 (psInches)

appRef.Preferences.TypeUnits = 1 'for PsTypeUnits --> 1 (psPixels)

appRef.Preferences.PointSize = 2

'2 indicates psPointType --> 2 (PsPostScriptPoints)

In JavaScript

rulerUnits

and

typeUnits

are properties of the

Preferences

object, accessed through

the

Application

object's

preferences

property as shown below.

app.preferences.rulerUnits = Units.INCHES

app.preferences.typeUnits = TypeUnits.PIXELS

app.preferences.pointSize = PointType.POSTSCRIPT

Note:

Remember to reset the unit settings back to the original values at the end of a script. See

‘Working

with Document Preferences’ on page 60

for an example of how to do this.

Sample Workflow Automation JavaScripts

The following sample workflow automation JavaScripts are provided with Photoshop CS3 and

demonstrate various kinds of scripting usage. The scripts are located in the

Presets/Scripts

folder in

your application directory. See

Creating and Running a JavaScript

for information on the

Presets/Scripts

folder.

translate

(delta x, delta y)

Selection.Translate

(DeltaX, DeltaY)

selection.translate

(deltaX, deltaY)

translate boundary

(delta x, delta y)

Selection.TranslateBoun

dary

(DeltaX, DeltaY)

selection.translateBou

ndary

(deltaX, deltaY)

AppleScript

VBScript

JavaScript

(Continued)