AS3 使用 PrintJob 打印 MovieClip

Question

我目前正在尝试创建一个函数，该函数允许我传入 MovieClip 并打印它。

以下是该函数的简化版本：

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 );

不幸的是，这并没有按预期工作，即打印MovieClip 的整个宽度并在长度上进行分页。

Answer 1

我忘记缩放打印区域以匹配正在调整大小的影片剪辑。请参阅下面的工作解决方案：

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 );

Answer 2

感谢您的开源精神！基于您的出色工作，我实现了它并做了一些改进来解决我实际的 MovieClip 打印问题。我取得的主要进展是找到一种仅通过一次打印作业发送来打印多帧MovieClip的方法。当然，我解决了“打印Movieclip的全宽度”的问题。由于SWF以矢量图的形式存储内容，因此您需要做的是确保clip.height = printArea.height;剪辑.宽度=打印区域.宽度;。这是一个简单的方法：

 1//MC printing Function 
 2private function printMovieClip(clip:MovieClip):void
 3{
 4    var printJob:PrintJob=new PrintJob();
 5    var printArea:Rectangle;
 6    if (!printJob.start())
 7      return;
 8    //The page you choose to print ,"selectPages" is a mx:combox object i used to support printing one frame of MC
 9    var printPage:int=selectPages.selectedItem.data;
10    if (printPage == 0) //print all frames of the MovieClip
11      {
12        for (var i:int=1; i <= clip.totalFrames; i++)
13        {
14          clip.gotoAndStop(i);
15          /* Resize movie clip to fit within page width */
16          clip.width=printJob.pageWidth;
17          clip.scaleY=clip.scaleX;
18          /* Store reference to print area in a new variable! Will save on scaling */
19          printArea=new Rectangle(0, 0, printJob.pageWidth, printJob.pageHeight);
20          //numPages=Math.ceil(clip.height / printJob.pageHeight);
21                  /* Add pages to print job */
22          printJob.addPage(clip, printArea);
23        }
24      }
25    else //print the selected frame
26    {
         //goto the selected frame firstly
27        clip.gotoAndStop(printPage);
28        /* Resize movie clip to fit within page width */
29        clip.width=printJob.pageWidth;
30        clip.scaleY=clip.scaleX;
31        printArea=new Rectangle(0, 0, printJob.pageWidth, printJob.pageHeight);
32         /* Add pages to print job */
33        printJob.addPage(clip, printArea);
34        }
35
36        /* Send print job to printer */
37        printJob.send(); 
38         /* Delete job from memory */
39        printJob=null;
40
41    }

如果你想了解更多信息，你可以看一下我的剪辑图像（假设你懂一点中文）：都是在我的博客。还有MovieClip缩略图（仍然是中文）。

Answer 3

我添加了一个小修复，可以在打印作业完成后重置影片剪辑的尺寸。问题是，当您打印比页面大的​​内容时，代码也会缩放舞台上的影片剪辑。所以我修复了这个问题...没什么特别的，但可能对其他人有用:)

此代码还修复了一个事实，即您的透明 PNG 在您的打印上也将是透明的

protected function printMovieClip(clip:MovieClip):void {

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

            if ( printJob.start() ) {

                originalWidth = clip.width;
                originalHeight = clip.height;

                if (clip.width > printJob.pageWidth) {
                    clip.width = printJob.pageWidth;
                    clip.scaleY = clip.scaleX;
                }

                printArea = new Rectangle(0, 0, printJob.pageWidth/clip.scaleX, printJob.pageHeight/clip.scaleY);

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

                for (var i:int = 0; i < numPages; i++) 
                {
                    printJobOptions.printAsBitmap = true;
                    printJob.addPage(clip, printArea, printJobOptions);
                    printArea.y += printArea.height;
                }

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

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

                /* reset the clips width and height on stage so it is back at its original size*/
                clip.width = originalWidth;
                clip.height = originalHeight;
            }

        }