Forked from:: mtok's Text Engine 縦書きサンプル

forked from: Text Engine 縦書きサンプル

...
@author ...

forked:2
favorite:1
lines:195
license : All rights reserved
modified : 2009-06-01 17:05:00

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// forked from mtok's Text Engine 縦書きサンプル
package
{
	[SWF(width="465", height="465", backgroundColor="0xffffff", frameRate="0")]
	import flash.display.Shape;
	import flash.display.Sprite;
	import flash.geom.Rectangle;
	import flash.text.engine.EastAsianJustifier;
	import flash.text.engine.ElementFormat;
	import flash.text.engine.FontDescription;
	import flash.text.engine.TextBlock;
	import flash.text.engine.TextBaseline;
	import flash.text.engine.LineJustification;
	import flash.text.engine.TextElement;
	import flash.text.engine.TextLine;
	import flash.text.engine.TextRotation;
	import flash.system.Capabilities;
	/**
	 * ...
	 * @author ...
	 */
	public class Tategaki extends Sprite
	{
		private var grid:Shape;
		private var screen:Sprite;
		public function Tategaki() 
		{
			grid = new Shape();
			grid.graphics.lineStyle(1, 0xA0EBF3);
			GraphicsUtils.drawGrid(grid.graphics, new Rectangle(0, 0, 451, 451), 50);
			GraphicsUtils.drawGrid(grid.graphics, new Rectangle(0, 0, 451, 451), 25, Vector.<Number>([2.5,2.5]));
			addChild(grid);
			
			addChild(screen = new Sprite());
			
			grid.x = screen.x = 5;
			grid.y = screen.y = 5;
			
			var japanese:String = "そこから出発して三日のあいだ東の方へ進んでゆくと、ディオミーラにまいります。\n都市には七十の銀の丸屋根、あらゆる神々の銅像、錫を敷きつめた道、玻璃づくりの劇場、朝ごとに塔の上より刻を告げる金の鶏がございます。すべてこのようなめでたさは、旅人ならば他国でも目にしてとっくに知っておるものばかりでございます。";
			
			var textBlock:TextBlock = new TextBlock();
			var font:FontDescription = new FontDescription();
			if (Capabilities.os.search("Mac OS") > -1) { 
				font.fontName = "ＭＳ 明朝";
			} else {
				font.fontName = "ＭＳ 明朝";
			}

var format:ElementFormat = new ElementFormat(font);
			format.fontSize = 28;
			format.locale = "ja";
			format.color = 0x222222;

textBlock.baselineZero = TextBaseline.IDEOGRAPHIC_CENTER;
			textBlock.textJustifier = new EastAsianJustifier("ja", LineJustification.ALL_INCLUDING_LAST);
			textBlock.lineRotation = TextRotation.ROTATE_90;
			
			var linePosition:Number = this.stage.stageWidth - 40;
			
			
			textBlock.content = new TextElement(japanese, format);
			
			var previousLine:TextLine = null;
			var textLine:TextLine;
			
			screen.graphics.lineStyle(1, 0xff0000);
			while (true) {
				textLine = textBlock.createTextLine(previousLine, 450);
				if (textLine == null)
					break;
				textLine.y = 0;
				textLine.x = linePosition;
				
				screen.graphics.moveTo(textLine.x, textLine.y);
				screen.graphics.lineTo(textLine.x, textLine.height);
				
				linePosition -= 50;
				screen.addChild(textLine);
				previousLine = textLine;
			}
		}
		
	}
}
import flash.display.Graphics;
import flash.geom.Point;
import flash.geom.Rectangle;

class GraphicsUtils {
	public function GraphicsUtils() {
		;
	}
	public static function drawGrid(g:Graphics, rect:Rectangle, size:Number, pattern:Vector.<Number> = null):void {
		var i:Number;
		var limitW:Number;
		var limitH:Number;
		
		limitW = rect.x + rect.width;
		limitH = rect.y + rect.height;
		if (pattern == null) {
			i = rect.y;
			while (i < limitH) {
				g.moveTo(rect.x, i);
				g.lineTo(limitW, i);
				i += size;
			}
			i = rect.x;
			while ( i < limitW) {
				g.moveTo(i, rect.y);
				g.lineTo(i, limitH);
				i += size;
			}
		}else {
			i = rect.y;
			while (i < limitH) {
				drawDotLine(g, rect.x, i, limitW, i, pattern);
				i += size;
			}

i = rect.x;
			while (i < limitW) {
				drawDotLine(g, i, rect.y, i, limitH, pattern);
				i += size;
			}
		}
	}
	public static function drawDotLine(g:Graphics, fromX:Number, fromY:Number, toX:Number, toY:Number, pattern:Vector.<Number>):void {
		var i:int;
		var n:Number;
		var v:Point = new Point(toX - fromX, toY - fromY);
		var tmp:Point;
		var l:Number = v.length;
		var sl:SimpleList = new SimpleList();
		var s:Boolean = true;
		v.normalize(1);
		
		for (i = 0; i < pattern.length; i++) {
			n = pattern[i];
			tmp = v.clone();
			tmp.normalize(n);
			sl.append({v:tmp, length:n});
		}
		
		
		var pos:Point = new Point(fromX, fromY);
		var obj:Object;
		n = 0;
		g.moveTo(pos.x, pos.y);
		while (true) {
			obj = sl.next();
			n += obj.length;
			if (n > l) {
				pos.x = toX;
				pos.y = toY;
				s = step(g, pos, s);
				break;
			}else {
				pos.offset(obj.v.x, obj.v.y);
				s = step(g, pos, s);
			}
		}
	}
	private static function step(g:Graphics, p:Point, s:Boolean):Boolean {
		if (s) {
			g.lineTo(p.x, p.y);
		}else {
			g.moveTo(p.x, p.y);
		}
		return !s;
	}
}

class SimpleList {
	private var currentElement:ListElement;
	private var appendFunc:Function;
	public function SimpleList(data:* = null) {
		if (data != null) {
			_initialize(data);
		}else{
			appendFunc = _initialize;
		}
	}
	public function append(data:*):void {
		appendFunc.call(null, data);
	}
	public function _initialize(data:*):void {
		currentElement = new ListElement(data);
		currentElement.next = currentElement;
		currentElement.prev = currentElement;
		appendFunc = _append;
	}
	public function _append(data:*):void {
		var elem:ListElement = new ListElement(data);
		var tmp:ListElement;
		tmp = currentElement.next;
		currentElement.next = elem;
		elem.prev = currentElement;
		elem.next = tmp;
		tmp.prev = elem;
		
		currentElement = elem;
	}
	public function current():*{
		return currentElement.data;
	}
	public function next():* {
		currentElement = currentElement.next;
		return currentElement.data;
	}
	public function prev():*{
		currentElement = currentElement.prev;
		return currentElement.data;
	}
}
class ListElement {
	public var next:ListElement;
	public var prev:ListElement;
	public var data:*;
	public function ListElement(data:*) {
		this.data = data;
	}
}

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