[Flash]JSFL-将当前层中的符号转换为位图

Posted 2021-02-23

Convert Symbol to Bitmap in Current Layer

fl.trace("========================================START")
 
var mQuality = prompt('輸入壓縮品質數值(0~100, default:80) : ');
if (mQuality == null || mQuality == "") {
	mQuality = 80;
} else {
	mQuality = parseInt(mQuality);
}
 
var lib = fl.getDocumentDOM().library;
var mTimeline = fl.getDocumentDOM().getTimeline();
// get index of current layer
var layerIdx = mTimeline.currentLayer;
var framesArray = mTimeline.layers[layerIdx].frames;
if (framesArray.length > 0) {
	var keyframesArray = [];
	// get key frames in current layer
	for (i=0; i<framesArray.length; i++) { 
		if (i==framesArray[i].startFrame) { 
			keyframesArray.push(framesArray[i]);
		} 
	}
	fl.trace("Bitmap compression : " + mQuality.toString());
	fl.trace("Get " + keyframesArray.length.toString() + " keyframes at Layer : " + mTimeline.layers[layerIdx].name)
 
	var mElement;
 
	for (i=0; i<keyframesArray.length; i++) {
		// in keyframe
		if (keyframesArray[i].elements.length > 0) {
			for (j=0; j<keyframesArray[i].elements.length; j++) {
				// in element
				mElement = keyframesArray[i].elements[j];
 
				if (mElement.instanceType == "symbol") {
					// is a symbol element
 
					// set current frame
					mTimeline.currentFrame = keyframesArray[i].startFrame;
					// set selection to current element
					fl.getDocumentDOM().selection = [mElement];
					fl.trace("At frame " + keyframesArray[i].startFrame + ", Item name : " + mElement.libraryItem.name + ", Select elements : " + document.selection.length.toString() );
 
					if(document.selection.length>0){
						document.convertSelectionToBitmap();
						fl.trace("  Convert to Bitmap ... " + keyframesArray[i].elements[j].libraryItem.name);
 
						libItemIdx = lib.findItemIndex(keyframesArray[i].elements[j].libraryItem.name);
 
						item = lib.items[libItemIdx];
 
						if(item.itemType == "bitmap" && item.name.substr(0,3)=="點陣圖"){
							item.compressionType = "photo";
							item.quality = mQuality;
							fl.trace("  Set compression to " + mQuality.toString());
						}
					}
				}
			}
		}
	}
}
alert("Done.")
fl.trace("========================================END")