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Applying a MotionBlur Filter, To select an area and apply a wave filter to

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Adobe Photoshop CS3 Scripting Guide Photoshop CS3 Scripting Photoshop CS3 69 JS ➤ To select an area and apply a wave filter to it: 1. Type the following code into the script file HelloWorldDoc just above the statements that restore original preferences: //create new variables to contain doc width and height //convert inches to pixels by multiplying the number of inches by //the resolution (which equals number of pixels per inch) docWidthInPixels = docWidthInInches * resolution docHeightInPixels = docHeightInInches * resolution //use the rasterize method of the artLayer class newTextLayer.rasterize(RasterizeType.TEXTCONTENTS) //create a variable to contain the coordinate values //for the selection object selRegion = Array(Array(0, 0), Array(docWidthInPixels / 2, 0), Array(docWidthInPixels / 2, docHeightInPixels), Array(0, docHeightInPixels), Array(0, 0)) //use the select method of the selection object //to create an object and give it the selRegion values //as coordinates docRef.selection.select(selRegion) newTextLayer.applyWave(1, 1, 100, 5, 10, 100, 100, WaveType.SINE, UndefinedAreas.WRAPAROUND, 0) 2. Save the script, and then open Photoshop CS3 and select the script from the Scripts menu (choose File > Script > HelloWorldDoc). 3. After viewing the document in Photoshop CS3, close Photoshop CS3 without saving the document. Note: Look up the following classes in the Adobe Photoshop CS3 JavaScript Scripting Reference, or in the ExtendScript Object Model Viewer to see if you understand how you used them in this script: ● ArtLayer ● rasterize() method. Notice that the RasterizeType.TEXTCONTENTS argument uses the RasterizeType constant. Constants are always depicted in upper case letters in Photoshop CS3 JavaScripts. ● applyWave() method Applying a MotionBlur Filter In this section, we will apply a different filter to the other half of our document. AS ➤ To apply a motionblur filter to HelloWorldDoc: 1. Type the following code into the script file HelloWorldDoc just above the statements that restore original preferences. --change the value of the variable theSelRegion --to contain the opposite half of the screen

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

➤

To select an area and apply a wave filter to it:

Type the following code into the script file

HelloWorldDoc

just above the statements that restore

original preferences:

//create new variables to contain doc width and height

//convert inches to pixels by multiplying the number of inches by

//the resolution (which equals number of pixels per inch)

docWidthInPixels = docWidthInInches * resolution

docHeightInPixels = docHeightInInches * resolution

//use the rasterize method of the artLayer class

newTextLayer.rasterize(RasterizeType.TEXTCONTENTS)

//create a variable to contain the coordinate values

//for the selection object

selRegion = Array(Array(0, 0),

Array(docWidthInPixels / 2, 0),

Array(docWidthInPixels / 2, docHeightInPixels),

Array(0, docHeightInPixels),

Array(0, 0))

//use the select method of the selection object

//to create an object and give it the selRegion values

//as coordinates

docRef.selection.select(selRegion)

newTextLayer.applyWave(1, 1, 100, 5, 10, 100, 100,

WaveType.SINE, UndefinedAreas.WRAPAROUND, 0)

Save the script, and then open Photoshop CS3 and select the script from the Scripts menu (choose

File

> Script > HelloWorldDoc

After viewing the document in Photoshop CS3, close Photoshop CS3 without saving the document.

Note:

Look up the following classes in the

Adobe Photoshop CS3 JavaScript Scripting Reference

, or in the

ExtendScript Object Model Viewer to see if you understand how you used them in this script:

●

ArtLayer

●

rasterize()

method. Notice that the

RasterizeType.TEXTCONTENTS

argument uses the

RasterizeType

constant. Constants are always depicted in upper case letters in

Photoshop CS3 JavaScripts.

●

applyWave()

method

Applying a MotionBlur Filter

In this section, we will apply a different filter to the other half of our document.

➤

To apply a motionblur filter to HelloWorldDoc:

Type the following code into the script file

HelloWorldDoc

just above the statements that restore

original preferences.

--change the value of the variable theSelRegion

--to contain the opposite half of the screen