Question

I need to find a way to "upsample" text from 72dpi (screen) to 300dpi (print) for rendered client generated text. This is a true WYSIWYG application and we re expecting a ton of traffic so client side rendering is a requirement. Our application has several fonts, font sizes, colors, alignments the user can modify in a textarea. The question is how to convert 72dpi to 300dpi. We have the editior complete, we just need to make 300dpi versions of the textarea.

MY IDEA

(1) 字塔,将高、宽和体积增加300/72。 (如果在体积上需要帐篷,我可能需要将体积的后向高度/宽度增加)

2) 使用比图Util。了解案文的解答

THE QUESTION

我怎么能够把案文放在没有部件生命周期的文本里? 想象:

var textArea:TextArea = new TextArea();
textArea.text = "This is a test";    
var bmd:BitmapData = textArea.render();

Answer 1

这里是我用来解决如何制作一个可打印文本的“自动文本Area”部分案文和风格问题的最后方法。我最后把习俗部分文本AreaRenderer(见下文)放在数据和元数据交换中,并给人以假名。然后利用提及该构成部分处理任何文本领域(主题),并回复一个比图Data标。

public class TextAreaRenderer extends TextArea implements IAssetRenderer
{

    public function render(renderObject:Object, dpi:int = 300):BitmapData{

        // CAST THE OBJECT
        //.................
        var userTextArea:TextArea = TextArea(renderObject);

        // SCALE IS THE DIVISION OF THE NEW DPI OVER THE SCREEN DPI 72
        //............................................................
        var scale:Number = dpi / 72;

        // COPY THE USER S TEXT AREA INTO THE OFFSCREEN TEXT AREA
        //.......................................................
        this.text = userTextArea.text;                          // the actual text
        this.height = Math.floor(userTextArea.height * scale);  // scaled height
        this.width = Math.floor(userTextArea.width * scale);    // scaled width


        // GET THE LAYOUT FORMATS AND COPY TO OFFSCREEN
        // - the user s format =  userTextAreaLayoutFormat
        // - the hidden format = thisLayoutFormat
        //...............................................
        var editableLayoutProperties:Array = [ fontSize ,  fontFamily ,  fontWeight ,  fontStyle ,  textAlign ,  textDecoration ,  color ]
        userTextArea.selectAll();
        var userTextAreaLayoutFormat:TextLayoutFormat = userTextArea.getFormatOfRange();
        this.selectAll();
        var thisLayoutFormat:TextLayoutFormat = this.getFormatOfRange();
        for each(var prop:String in editableLayoutProperties){
            thisLayoutFormat[prop] = userTextAreaLayoutFormat[prop];
        }

        // SCALE THE FONT SIZE
        //....................
        thisLayoutFormat.fontSize = thisLayoutFormat.fontSize * scale;

        // SET THE FORMAT BACK IN THE TEXT BOX
        //...................................
        this.setFormatOfRange(thisLayoutFormat);

        // REDRAW THE OFFSCREEN
        // RETURN THE BITMAP DATA
        //.......................
        this.validateNow();
        return BitmapUtil.getSnapshot(this);
    }
}

Then calling the TextAreaRenderer after the text area is changed to get a scaled up bitmap.

// COPY THE DATA INTO THE OFFSCREEN COMPONENT
//............................................
var renderableComponent:IAssetRenderer = view.offScreenTextArea;
return renderableComponent.render(userTextArea, 300);

www.un.org/Depts/DGACM/index_french.htm 通过与我一起工作的灵活性。

Answer 2

和“灵活”一样,除你实际在4.16X申请中zoom外,食宿与新闻部没有任何关系。如果您的运用都有病媒图象,那就是一个问题。此外,任何网络应用中都失去了新闻部的概念,直到你重新努力挽救/印出一个比图。

这无疑是可能的,但你不得不自行表示。

Answer 3

To ask a question another way, it is possible to create a TextArea in memory which I can use the BitmapUtil.getSnapshot() function to generate a BitmapData object

从技术上讲,所有组成部分都记忆犹新。我认为,你想要做的是,在不将其添加到集装箱内的情况下,就能够成为一个组成部分。

我们确实是用于灵活部分的水标记。从概念上讲,我们创造了一种使情况成为事实的方法。

public function render(argInheritingStyles : Object):void{
 this.createChildren();
 this.childrenCreated();
 this.initializationComplete();
 this.inheritingStyles = argInheritingStyles;
 this.commitProperties();
 this.measure(); 
 this.height = this.measuredHeight;
 this.width = this.measuredWidth;
 this.updateDisplayList(this.unscaledWidth,this.unscaledHeight);
}

The method must be explicitly called. Then you can use the standard procedure for turning the component into a bitmap. I think we use a Label; but the same approach should work on any given component.

MY IDEA

THE QUESTION

友情链接