AS3 using PrintJob to print a MovieClip

Chris Waugh picture Chris Waugh · Sep 14, 2009 · Viewed 22.8k times · Source

I am currently trying to create a function which will allow me to pass in a MovieClip and print it.

Here is the simplified version of the function:

function printMovieClip(clip:MovieClip) {

var printJob:PrintJob = new PrintJob();
var numPages:int = 0;
var printY:int = 0;
var printHeight:Number;

if ( printJob.start() ) {

/* Resize movie clip to fit within page width */
if (clip.width > printJob.pageWidth) {
   clip.width = printJob.pageWidth;
   clip.scaleY = clip.scaleX;
}

numPages = Math.ceil(clip.height / printJob.pageHeight);

/* Add pages to print job */
for (var i:int = 0; i < numPages; i++) {
 printJob.addPage(clip, new Rectangle(0, printY, printJob.pageWidth, printJob.pageHeight));
 printY += printJob.pageHeight;
}

/* Send print job to printer */
printJob.send();

/* Delete job from memory */
printJob = null;

}

}

printMovieClip( testMC );

Unfortunately this is not working as expected i.e. printing the full width of the MovieClip and doing page breaks on the length.

Answer

Chris Waugh picture Chris Waugh · Sep 14, 2009

I forgot to scale the print area to match the movie clip being resized. See below for working solution:

function printMovieClip(clip:MovieClip) {

    var printJob:PrintJob = new PrintJob();
    var numPages:int = 0;
    var printArea:Rectangle;
    var printHeight:Number;
    var printY:int = 0;

    if ( printJob.start() ) {

        /* Resize movie clip to fit within page width */
        if (clip.width > printJob.pageWidth) {
            clip.width = printJob.pageWidth;
            clip.scaleY = clip.scaleX;
        }

        /* Store reference to print area in a new variable! Will save on scaling calculations later... */
        printArea = new Rectangle(0, 0, printJob.pageWidth/clip.scaleX, printJob.pageHeight/clip.scaleY);

        numPages = Math.ceil(clip.height / printJob.pageHeight);

        /* Add pages to print job */
        for (var i:int = 0; i < numPages; i++) {
            printJob.addPage(clip, printArea);
            printArea.y += printArea.height;
        }

        /* Send print job to printer */
        printJob.send();

        /* Delete job from memory */
        printJob = null;

    }

}

printMovieClip( testMC );