| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| package com.adobe.linguistics.spelling.framework.ui |
| { |
| import com.adobe.linguistics.utils.Token; |
| |
| import flash.geom.Point; |
| import flash.text.TextField; |
| |
| import mx.core.IUITextField; |
| |
| /** |
| * <p>This class facilitates drawing of squiggly lines below words for TextField class. TextField class is used to create display objects for text display |
| * and input for Halo TextArea and TextInput components. HaloHighlighter could therefore be used for drawing squiggly lines in these Halo components.</p> |
| * |
| * @playerversion Flash 9.x |
| * @langversion 3.0 |
| */ |
| |
| public class HaloHighlighter implements IHighlighter |
| { |
| private var mTextField:TextField; |
| private var mHighlighter:SpellingHighlighter; |
| /* |
| * offset point: |
| */ |
| private var _offsetPoint:Point; |
| |
| /** |
| * The constructor for HaloHighlighter. |
| * @param textField <code>TextField</code> in which to enable highlighting. |
| * @playerversion Flash 10 |
| * @langversion 3.0 |
| */ |
| public function HaloHighlighter( textField:TextField ) |
| { |
| if (textField == null ) throw new Error("illegal argument."); |
| mTextField = textField; |
| mHighlighter = null; |
| this._offsetPoint = new Point(0,0); |
| } |
| /** |
| * Draw squiggly lines below a given token. |
| * @param token <code>Token</code> information of the word to be highlighted. |
| * @playerversion Flash 10 |
| * @langversion 3.0 |
| */ |
| public function drawSquiggleAt(token:Token):void |
| { |
| squiggleWord(token); |
| } |
| |
| /** |
| * Clear all squiggly lines in the TextField. |
| * @playerversion Flash 10 |
| * @langversion 3.0 |
| */ |
| public function clearSquiggles():void |
| { |
| if (mHighlighter) { |
| mTextField.parent.removeChild(mHighlighter); |
| mHighlighter=null; |
| } |
| |
| } |
| |
| /** |
| * Set offset point information for scrollable controls. This is used by the highlighter to move |
| * the squiggly lines as the text scrolls inside the control. |
| * @param op offset information as a <code>Point</code> instance. |
| * @playerversion Flash 10 |
| * @langversion 3.0 |
| */ |
| public function set offsetPoint(op:Point):void{ |
| _offsetPoint = op; |
| } |
| |
| /** |
| * Get offset point information for scrollable controls. This is used by the highlighter to move |
| * the squiggly lines as the text scrolls inside the control. |
| * @param op offset information as a <code>Point</code> instance. |
| * @playerversion Flash 10 |
| * @langversion 3.0 |
| */ |
| public function get offsetPoint():Point{ |
| return _offsetPoint; |
| } |
| |
| |
| private function squiggleWord(token:Token):void { |
| |
| if (!mHighlighter) { |
| mHighlighter= new SpellingHighlighter( mTextField as IUITextField); |
| mTextField.parent.addChild(mHighlighter); |
| } |
| |
| mHighlighter.drawSquigglyLine(token.first, token.last); |
| |
| |
| //mTextField.parent.addChild(mHighlighter); |
| mHighlighter.move(_offsetPoint.x, _offsetPoint.y); |
| } |
| |
| } |
| } |