Last insertion point of a line is ignored. Why?

I am writing a script that takes a multiline paragraph and can scale down the pointSize to fit all the text on a line that corresponds to the width of the text block.

Screen Shot 2013-08-27 at 12.33.55 PM.png

Here's how to calculate.

-J' add the length of each line to get the total width.

-calculate the percentage of scaling by dipping the width of text to the total width frame.

-several current point size with are.

Pretty simple stuff.

The issue I'm facing is that indesign makes the last character as the last point of insertion of each line. SHE IGNORES the SPACE AFTER IT. What shoul be technically the last point inseriton. So given that space cannot be calculated, it shake my whole scaling.

Screen Shot 2013-08-27 at 12.34.09 PM.png

I'm doing something wrong. Any help would be appreciated.

my code:

var frameWidth = app.selection[0].geometricBounds[3] - app.selection[0].geometricBounds[1];
var numOfLines = app.selection[0].lines.length;
var totalWidth = 0;


for (var j = numOfLines - 1; j>-1; j--) {
      if(j == numOfLines-1) {
            totalWidth = totalWidth + (app.selection[0].lines[j].insertionPoints[-1].horizontalOffset - app.selection[0].lines[j].insertionPoints[0].horizontalOffset);
      } else {
            totalWidth = totalWidth + (app.selection[0].lines[j].characters[-1].horizontalOffset - app.selection[0].lines[j].characters[0].horizontalOffset);
      }
}


var percentage = frameWidth / totalWidth;


app.selection[0].paragraphs[0].pointSize = app.selection[0].paragraphs[0].pointSize * percentage + "pt";

Use the endHorizontalOffset property.

One of the problems with text objects (which can be a blessing or a curse depending on what you happen to want to at some point) is a principle that I call "the last shall be first." This is because the last insertion of any particular text object is the same insertion point as the first of the next similar text element.

Thus, for example,.

nextPara = .paragraphs thisPara.insertionPoint [-1] [0]

One consequence of this is that the last PointInsertion of a line has two different positions, the end of a line and the beginning of the next.

Even the user interface is confused by the present. Click at the end of a story that ends with a paragraph mark and place an image. You will see that the cursor marker remains at the same insertion point, but before placing them, it is to the left of the line to which you added the image now is at the end of the previous line.

It's very odd behavior which panicked me for more than a decade now.

Dave

Tags: InDesign

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