StaticCaption for Image and Opacity settings in Object style

Question

HiI have an empty Objectstyle named "caption".Here is the code to add a caption to a selected image. var myDoc = app.activeDocument;

var myPhotos = app.selection[0];
var gb = myPhotos.geometricBounds;

// Frame for caption
var myCaption = myPhotos.parent.textFrames.add();

// Position and size of the caption
myCaption.geometricBounds = [gb[2]-1, gb[1]+1, gb[2]-6, gb[3]-1];

// apply existing object style to the caption
myCaption.applyObjectStyle (app.activeDocument.objectStyles.item("caption"));

// add caption contents
myCaption.contents = "group the picture and the caption";

// group the picture and the caption
//myPhotos.parent.groups.add([myPhotos, myCaption]);

var objStyle = myDoc.objectStyles.itemByName("caption");
objStyle.fillColor="white";
objStyle.fillTint=20; I need three things which I am not able to achieve.a. I am unable to set the opacity of the fill to 20 or 30%b. I am unable to get the static captionc. Create the objectstyle named "caption" on the fly I searched this link for opacity settings:https://www.indesignjs.de/extendscriptAPI/indesign-latest/#ObjectStyle.html

rob day · Accepted Answer

Ok folloiwng code gives me the builtin caption from the image but there is one issue. On updating the caption in the image directly from windows or adobe bridge, the caption does not refresh in the indesign document even after syncing the "refresh" from the links panel.

Here is the code:

//Use links to get XMP data from the images
var img = myPhotos.images[0];
var lnk = img.itemLink;
var imgTitle = lnk.linkXmp.documentTitle;
var imgDescription = lnk.linkXmp.description;

myCaption.contents = imgDescription;

What am I missing or doing wrong ?

Hi @Bedazzled532 , If you set the contents of a regular textFrame from XMP data I don‘t think there is a way to make the caption dynamic. You could invoke the Generate Live Caption menu item, which would create the dynamic text frame. Something like this:

makeCaption()

function makeCaption(){
    //check for a selection
    if (app.activeDocument.selection.length > 0 && app.activeDocument.selection[0].graphics.length > 0) {
        var f = app.activeDocument.selection[0];
    } else {
        alert("Please Select a Frame with an image.")
        return
    }

    //with the text frame selected invoke Generate Live Caption
    var makeCap =  app.menuActions.itemByName("Generate Live Caption")
    makeCap.invoke();

    //this would be the newly created caption text frame, which could be styled
    var c = app.activeWindow.activePage.textFrames[0];

    //Set the meta tag options are "Name", "Path", "Description", "Author", "Actual PPI", "Creation Date"
    setCaptionMeta("Description");


}

/**
* Sets the caption’s metadata
* @ param the metadata name to use
* @ return void 
*/

function setCaptionMeta(n){
    var tv = app.activeDocument.textVariables
    for (var i = 0; i < tv.length; i++){
        try {
            var tvo = tv[i].variableOptions
            if (tvo.constructor.name == "CaptionMetadataVariablePreference") {
                tv[i].variableOptions.metadataProviderName = n
            } 
        }catch(e) {}  
    } 
}

Anantha Prabu G · Answer

objStyle.transparencySettings.blendingSettings.opacity= 20;

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