textLayout/src/flashx/textLayout/elements/TableCellElement.as - flex-tlf - Git at Google

 ////////////////////////////////////////////////////////////////////////////////
 //
 //  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 flashx.textLayout.elements
 {
 	import flash.display.Graphics;
 	import flash.display.Shape;
 	import flash.display.Sprite;
 	import flash.events.MouseEvent;
 	import flash.geom.Point;
 	import flash.text.engine.GraphicElement;
 	import flash.utils.getDefinitionByName;
 	import flash.utils.getQualifiedClassName;

 	import flashx.textLayout.compose.FlowDamageType;
 	import flashx.textLayout.compose.TextFlowLine;
 	import flashx.textLayout.container.ContainerController;
 	import flashx.textLayout.edit.EditManager;
 	import flashx.textLayout.edit.IEditManager;
 	import flashx.textLayout.edit.ISelectionManager;
 	import flashx.textLayout.events.DamageEvent;
 	import flashx.textLayout.events.ModelChange;
 	import flashx.textLayout.formats.BlockProgression;
 	import flashx.textLayout.formats.Float;
 	import flashx.textLayout.tlf_internal;
 	import flashx.undo.UndoManager;

 	use namespace tlf_internal;

 	/**
 	 * TableCellElement is an item in a TableElement. It most commonly contains one or more ParagraphElement objects.
 	 *
 	 *
 	 * @playerversion Flash 10
 	 * @playerversion AIR 1.5
 	 * @langversion 3.0
 	 *
 	 */
 	public final class TableCellElement extends TableFormattedElement
 	{
 		private var _x:Number;
 		private var _y:Number;
 		private var _width:Number;
 		private var _height:Number;

 		private var _parcelIndex:int;
 		private var _container:CellContainer;
 		private var _enableIME:Boolean = true;
 		private var _damaged:Boolean = true;
 		private var _controller:ContainerController;

 		private var _rowSpan:uint = 1;
 		private var _columnSpan:uint = 1;
 		private var _rowIndex:int = -1;
 		private var _colIndex:int = -1;
 		private var _includeDescentInCellBounds:Boolean;

 		public function TableCellElement()
 		{
 			super();
 			_controller = new ContainerController(container,NaN,NaN);
 		}

 		/** @private */
 		override protected function get abstract():Boolean
 		{ return false; }

 		/** @private */
 		tlf_internal override function get defaultTypeName():String
 		{ return "td"; }

 		/** @private */
 		tlf_internal override function canOwnFlowElement(elem:FlowElement):Boolean
 		{// Table cells have no TLF children. Instead it contains its own TextFlow.
 			return (elem is FlowElement);
 		}

 		public function isDamaged():Boolean {
 			return _damaged || (_textFlow && _textFlow.flowComposer.isPotentiallyDamaged(_textFlow.textLength));
 		}

 		private var _savedPaddingTop:Number = 0;
 		private var _savedPaddingBottom:Number = 0;
 		private var _savedPaddingLeft:Number = 0;
 		private var _savedPaddingRight:Number = 0;

 		public function compose():Boolean {

 			var pt:Number = getEffectivePaddingTop();
 			var pb:Number = getEffectivePaddingBottom();
 			var pl:Number = getEffectivePaddingLeft();
 			var pr:Number = getEffectivePaddingRight();

 			if(pt != _savedPaddingTop)
 			{
 				_controller.paddingTop = _savedPaddingTop = pt;
 			}
 			if(pb != _savedPaddingBottom)
 			{
 				_controller.paddingBottom = _savedPaddingBottom = pb;
 			}
 			if(pl != _savedPaddingLeft)
 			{
 				_controller.paddingLeft = _savedPaddingLeft = pl;
 			}
 			if(pr != _savedPaddingRight)
 			{
 				_controller.paddingRight = _savedPaddingRight = pr;
 			}

 			var table:TableElement = getTable();

 			_damaged = false;

 			var compWidth:Number = 0;
 			for(var i:int=0;i<columnSpan;i++)
 			{
 				if (table && table.getColumnAt(colIndex+i)) {
 					compWidth += table.getColumnAt(colIndex+i).columnWidth;
 				}

 			}
 			width = compWidth;

 			if (_textFlow && _textFlow.flowComposer) {
 				return _textFlow.flowComposer.compose();
 			}

 			return false;
 		}

 		public function update():Boolean
 		{
 			if(_textFlow && _textFlow.flowComposer){
 				return _textFlow.flowComposer.updateAllControllers();
 			}
 			return false;
 		}

 		public function get parcelIndex():int
 		{
 			return _parcelIndex;
 		}

 		public function set parcelIndex(value:int):void
 		{
 			_parcelIndex = value;
 		}

 		public function get rowIndex():int
 		{
 			return _rowIndex;
 		}

 		public function set rowIndex(value:int):void
 		{
 			_rowIndex = value;
 		}

 		public function get colIndex():int
 		{
 			return _colIndex;
 		}

 		public function set colIndex(value:int):void
 		{
 			_colIndex = value;
 		}

 		protected var _textFlow:TextFlow;

 		public function get textFlow():TextFlow {

 			if (_textFlow == null) {
 				var flow:TextFlow = new TextFlow();

 				if (table && table.getTextFlow() && table.getTextFlow().interactionManager is IEditManager) {
 					flow.interactionManager = new EditManager(IEditManager(_textFlow.interactionManager).undoManager);
 				}
 				else if(table && table.getTextFlow() && table.getTextFlow().interactionManager) {
 					var im:Class = getDefinitionByName(getQualifiedClassName(table.getTextFlow().interactionManager)) as Class;
 					flow.interactionManager = new im();
 				}
 				else {
 					flow.normalize();
 				}

 				textFlow = flow;

 			}

 			return _textFlow;
 		}

 		public function set textFlow(value:TextFlow):void
 		{
 			if (_textFlow) {
 				_textFlow.removeEventListener(DamageEvent.DAMAGE, handleCellDamage);
 				_textFlow.flowComposer.removeAllControllers();
 			}

 			_textFlow = value;
 			_textFlow.parentElement = this;
 			_textFlow.flowComposer.addController(_controller);
 			_textFlow.addEventListener(DamageEvent.DAMAGE, handleCellDamage);

 		}

 		public function get controller():ContainerController {
 			return _controller;
 		}

 		private function handleCellDamage(ev:DamageEvent):void{
 			damage();
 		}

 		public function get enableIME():Boolean
 		{
 			return _enableIME;
 		}

 		public function set enableIME(value:Boolean):void
 		{
 			_enableIME = value;
 		}

 		public function get container():CellContainer{
 			if(!_container){
 				_container = new CellContainer(enableIME);
 				_container.element = this;
 			}

 			return _container;
 		}

 		/**
 		 * Gets the width.
 		 **/
 		public function get width():Number
 		{
 			return _width;
 		}

 		/**
 		 * @private
 		 **/
 		public function set width(value:Number):void
 		{
 			if(_width != value) {
 				_damaged = true;
 			}

 			_width = value;

 			_controller.setCompositionSize(_width, _controller.compositionHeight);
 		}

 		/**
 		 * Returns the height of the cell.
 		 **/
 		public function get height():Number
 		{
 			//return getRowHeight(); not sure if we should always use row height
 			return _height;
 		}

 		/**
 		 * @private
 		 **/
 		public function set height(value:Number):void
 		{
 			if (_height != value) {
 				_damaged = true;
 			}

 			_height = value;

 			_controller.setCompositionSize(_controller.compositionWidth, _height);
 		}

 		public function getComposedHeight():Number
 		{
 			var descent:Number = 0;
 			if(!includeDescentInCellBounds)
 			{
 				if(_textFlow.flowComposer && _textFlow.flowComposer.numLines)
 				{
 					var lastLine:TextFlowLine = _textFlow.flowComposer.getLineAt(_textFlow.flowComposer.numLines-1);
 					if(lastLine)
 						descent = lastLine.descent;
 				}
 			}
 			return (_controller.getContentBounds().height - descent);
 		}

 		public function getRowHeight():Number
 		{
 			return getRow() ? getRow().composedHeight : NaN;
 		}

 		public function get rowSpan():uint
 		{
 			return _rowSpan;
 		}

 		public function set rowSpan(value:uint):void
 		{
 			if(value >= 1)
 				_rowSpan = value;
 		}

 		public function get columnSpan():uint
 		{
 			return _columnSpan;
 		}

 		public function set columnSpan(value:uint):void
 		{
 			if(value >= 1)
 				_columnSpan = value;
 		}

 		public function updateCompositionShapes():void{
 			_controller.updateCompositionShapes();
 		}

 		/**
 		 * Return the row that this cell is part of or null
 		 * if not part of a row.
 		 **/
 		public function getRow():TableRowElement
 		{
 			return table ? table.getRowAt(rowIndex) : null;
 		}

 		/**
 		 * Returns the next cell in the table or null if not part of a
 		 * table or no cells exist after this cell.
 		 **/
 		public function getNextCell():TableCellElement {
 			return table ? table.getNextCell(this) : null;
 		}

 		/**
 		 * Returns the previous cell in the table or null if not part of a
 		 * table or no cells exist before this cell.
 		 **/
 		public function getPreviousCell():TableCellElement {
 			return table ? table.getPreviousCell(this) : null;
 		}

 		public function get x():Number
 		{
 			return container.x;
 		}

 		public function set x(value:Number):void
 		{
 			container.x = value;
 		}

 		public function get y():Number
 		{
 			return container.y;
 		}

 		public function set y(value:Number):void
 		{
 			container.y = value;
 		}

 		public function damage():void
 		{
 			if (table) {
 				table.hasCellDamage = true;
 			}

 			_damaged = true;
 		}

 		/**
 		 * Adds in the table cell spacing, border stroke width.
 		 * We may be able to set this value when the format changes.
 		 * For now we just want to get it to work.
 		 **/
 		public function getTotalPaddingWidth():Number {
 			var paddingAmount:Number = 0;

 			// no textflow is no padding
 			if (!textFlow) {
 				return 0;
 			}

 			if (table && table.cellSpacing!=undefined) {
 				paddingAmount += table.cellSpacing;
 			}

 			if (textFlow.computedFormat.blockProgression == BlockProgression.RL) {
 				paddingAmount += Math.max(getEffectivePaddingTop() + getEffectivePaddingBottom(), getEffectiveBorderTopWidth() + getEffectiveBorderBottomWidth());
 			}
 			else {
 				paddingAmount += Math.max(getEffectivePaddingLeft() + getEffectivePaddingRight(), getEffectiveBorderLeftWidth() + getEffectiveBorderRightWidth());
 			}

 			return paddingAmount;
 		}

 		/**
 		 * Adds in the table cell spacing, border stroke height.
 		 * We may be able to set this value when the format changes.
 		 **/
 		public function getTotalPaddingHeight():Number {
 			var paddingAmount:Number = 0;

 			// no textflow is no padding
 			if (!textFlow) {
 				return 0;
 			}

 			if (table && table.cellSpacing!=undefined) {
 				paddingAmount += table.cellSpacing;
 			}

 			if (textFlow.computedFormat.blockProgression == BlockProgression.RL) {
 				paddingAmount += Math.max(getEffectivePaddingLeft() + getEffectivePaddingRight(), getEffectiveBorderLeftWidth() + getEffectiveBorderRightWidth());
 			}
 			else {
 				paddingAmount += Math.max(getEffectivePaddingTop() + getEffectivePaddingBottom(), getEffectiveBorderTopWidth() + getEffectiveBorderBottomWidth());
 			}

 			return paddingAmount;
 		}

 		public function get includeDescentInCellBounds():Boolean
 		{
 			return _includeDescentInCellBounds;
 		}

 		public function set includeDescentInCellBounds(value:Boolean):void
 		{
 			_includeDescentInCellBounds = value;
 		}


 	}
 }
	////////////////////////////////////////////////////////////////////////////////
	//
	// 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 flashx.textLayout.elements
	{
	import flash.display.Graphics;
	import flash.display.Shape;
	import flash.display.Sprite;
	import flash.events.MouseEvent;
	import flash.geom.Point;
	import flash.text.engine.GraphicElement;
	import flash.utils.getDefinitionByName;
	import flash.utils.getQualifiedClassName;

	import flashx.textLayout.compose.FlowDamageType;
	import flashx.textLayout.compose.TextFlowLine;
	import flashx.textLayout.container.ContainerController;
	import flashx.textLayout.edit.EditManager;
	import flashx.textLayout.edit.IEditManager;
	import flashx.textLayout.edit.ISelectionManager;
	import flashx.textLayout.events.DamageEvent;
	import flashx.textLayout.events.ModelChange;
	import flashx.textLayout.formats.BlockProgression;
	import flashx.textLayout.formats.Float;
	import flashx.textLayout.tlf_internal;
	import flashx.undo.UndoManager;

	use namespace tlf_internal;

	/**
	* TableCellElement is an item in a TableElement. It most commonly contains one or more ParagraphElement objects.
	*
	*
	* @playerversion Flash 10
	* @playerversion AIR 1.5
	* @langversion 3.0
	*
	*/
	public final class TableCellElement extends TableFormattedElement
	{
	private var _x:Number;
	private var _y:Number;
	private var _width:Number;
	private var _height:Number;

	private var _parcelIndex:int;
	private var _container:CellContainer;
	private var _enableIME:Boolean = true;
	private var _damaged:Boolean = true;
	private var _controller:ContainerController;

	private var _rowSpan:uint = 1;
	private var _columnSpan:uint = 1;
	private var _rowIndex:int = -1;
	private var _colIndex:int = -1;
	private var _includeDescentInCellBounds:Boolean;

	public function TableCellElement()
	{
	super();
	_controller = new ContainerController(container,NaN,NaN);
	}

	/** @private */
	override protected function get abstract():Boolean
	{ return false; }

	/** @private */
	tlf_internal override function get defaultTypeName():String
	{ return "td"; }

	/** @private */
	tlf_internal override function canOwnFlowElement(elem:FlowElement):Boolean
	{// Table cells have no TLF children. Instead it contains its own TextFlow.
	return (elem is FlowElement);
	}

	public function isDamaged():Boolean {
	return _damaged \|\| (_textFlow && _textFlow.flowComposer.isPotentiallyDamaged(_textFlow.textLength));
	}

	private var _savedPaddingTop:Number = 0;
	private var _savedPaddingBottom:Number = 0;
	private var _savedPaddingLeft:Number = 0;
	private var _savedPaddingRight:Number = 0;

	public function compose():Boolean {

	var pt:Number = getEffectivePaddingTop();
	var pb:Number = getEffectivePaddingBottom();
	var pl:Number = getEffectivePaddingLeft();
	var pr:Number = getEffectivePaddingRight();

	if(pt != _savedPaddingTop)
	{
	_controller.paddingTop = _savedPaddingTop = pt;
	}
	if(pb != _savedPaddingBottom)
	{
	_controller.paddingBottom = _savedPaddingBottom = pb;
	}
	if(pl != _savedPaddingLeft)
	{
	_controller.paddingLeft = _savedPaddingLeft = pl;
	}
	if(pr != _savedPaddingRight)
	{
	_controller.paddingRight = _savedPaddingRight = pr;
	}

	var table:TableElement = getTable();

	_damaged = false;

	var compWidth:Number = 0;
	for(var i:int=0;i<columnSpan;i++)
	{
	if (table && table.getColumnAt(colIndex+i)) {
	compWidth += table.getColumnAt(colIndex+i).columnWidth;
	}

	}
	width = compWidth;

	if (_textFlow && _textFlow.flowComposer) {
	return _textFlow.flowComposer.compose();
	}

	return false;
	}

	public function update():Boolean
	{
	if(_textFlow && _textFlow.flowComposer){
	return _textFlow.flowComposer.updateAllControllers();
	}
	return false;
	}

	public function get parcelIndex():int
	{
	return _parcelIndex;
	}

	public function set parcelIndex(value:int):void
	{
	_parcelIndex = value;
	}

	public function get rowIndex():int
	{
	return _rowIndex;
	}

	public function set rowIndex(value:int):void
	{
	_rowIndex = value;
	}

	public function get colIndex():int
	{
	return _colIndex;
	}

	public function set colIndex(value:int):void
	{
	_colIndex = value;
	}

	protected var _textFlow:TextFlow;

	public function get textFlow():TextFlow {

	if (_textFlow == null) {
	var flow:TextFlow = new TextFlow();

	if (table && table.getTextFlow() && table.getTextFlow().interactionManager is IEditManager) {
	flow.interactionManager = new EditManager(IEditManager(_textFlow.interactionManager).undoManager);
	}
	else if(table && table.getTextFlow() && table.getTextFlow().interactionManager) {
	var im:Class = getDefinitionByName(getQualifiedClassName(table.getTextFlow().interactionManager)) as Class;
	flow.interactionManager = new im();
	}
	else {
	flow.normalize();
	}

	textFlow = flow;

	}

	return _textFlow;
	}

	public function set textFlow(value:TextFlow):void
	{
	if (_textFlow) {
	_textFlow.removeEventListener(DamageEvent.DAMAGE, handleCellDamage);
	_textFlow.flowComposer.removeAllControllers();
	}

	_textFlow = value;
	_textFlow.parentElement = this;
	_textFlow.flowComposer.addController(_controller);
	_textFlow.addEventListener(DamageEvent.DAMAGE, handleCellDamage);

	}

	public function get controller():ContainerController {
	return _controller;
	}

	private function handleCellDamage(ev:DamageEvent):void{
	damage();
	}

	public function get enableIME():Boolean
	{
	return _enableIME;
	}

	public function set enableIME(value:Boolean):void
	{
	_enableIME = value;
	}

	public function get container():CellContainer{
	if(!_container){
	_container = new CellContainer(enableIME);
	_container.element = this;
	}

	return _container;
	}

	/**
	* Gets the width.
	**/
	public function get width():Number
	{
	return _width;
	}

	/**
	* @private
	**/
	public function set width(value:Number):void
	{
	if(_width != value) {
	_damaged = true;
	}

	_width = value;

	_controller.setCompositionSize(_width, _controller.compositionHeight);
	}

	/**
	* Returns the height of the cell.
	**/
	public function get height():Number
	{
	//return getRowHeight(); not sure if we should always use row height
	return _height;
	}

	/**
	* @private
	**/
	public function set height(value:Number):void
	{
	if (_height != value) {
	_damaged = true;
	}

	_height = value;

	_controller.setCompositionSize(_controller.compositionWidth, _height);
	}

	public function getComposedHeight():Number
	{
	var descent:Number = 0;
	if(!includeDescentInCellBounds)
	{
	if(_textFlow.flowComposer && _textFlow.flowComposer.numLines)
	{
	var lastLine:TextFlowLine = _textFlow.flowComposer.getLineAt(_textFlow.flowComposer.numLines-1);
	if(lastLine)
	descent = lastLine.descent;
	}
	}
	return (_controller.getContentBounds().height - descent);
	}

	public function getRowHeight():Number
	{
	return getRow() ? getRow().composedHeight : NaN;
	}

	public function get rowSpan():uint
	{
	return _rowSpan;
	}

	public function set rowSpan(value:uint):void
	{
	if(value >= 1)
	_rowSpan = value;
	}

	public function get columnSpan():uint
	{
	return _columnSpan;
	}

	public function set columnSpan(value:uint):void
	{
	if(value >= 1)
	_columnSpan = value;
	}

	public function updateCompositionShapes():void{
	_controller.updateCompositionShapes();
	}

	/**
	* Return the row that this cell is part of or null
	* if not part of a row.
	**/
	public function getRow():TableRowElement
	{
	return table ? table.getRowAt(rowIndex) : null;
	}

	/**
	* Returns the next cell in the table or null if not part of a
	* table or no cells exist after this cell.
	**/
	public function getNextCell():TableCellElement {
	return table ? table.getNextCell(this) : null;
	}

	/**
	* Returns the previous cell in the table or null if not part of a
	* table or no cells exist before this cell.
	**/
	public function getPreviousCell():TableCellElement {
	return table ? table.getPreviousCell(this) : null;
	}

	public function get x():Number
	{
	return container.x;
	}

	public function set x(value:Number):void
	{
	container.x = value;
	}

	public function get y():Number
	{
	return container.y;
	}

	public function set y(value:Number):void
	{
	container.y = value;
	}

	public function damage():void
	{
	if (table) {
	table.hasCellDamage = true;
	}

	_damaged = true;
	}

	/**
	* Adds in the table cell spacing, border stroke width.
	* We may be able to set this value when the format changes.
	* For now we just want to get it to work.
	**/
	public function getTotalPaddingWidth():Number {
	var paddingAmount:Number = 0;

	// no textflow is no padding
	if (!textFlow) {
	return 0;
	}

	if (table && table.cellSpacing!=undefined) {
	paddingAmount += table.cellSpacing;
	}

	if (textFlow.computedFormat.blockProgression == BlockProgression.RL) {
	paddingAmount += Math.max(getEffectivePaddingTop() + getEffectivePaddingBottom(), getEffectiveBorderTopWidth() + getEffectiveBorderBottomWidth());
	}
	else {
	paddingAmount += Math.max(getEffectivePaddingLeft() + getEffectivePaddingRight(), getEffectiveBorderLeftWidth() + getEffectiveBorderRightWidth());
	}

	return paddingAmount;
	}

	/**
	* Adds in the table cell spacing, border stroke height.
	* We may be able to set this value when the format changes.
	**/
	public function getTotalPaddingHeight():Number {
	var paddingAmount:Number = 0;

	// no textflow is no padding
	if (!textFlow) {
	return 0;
	}

	if (table && table.cellSpacing!=undefined) {
	paddingAmount += table.cellSpacing;
	}

	if (textFlow.computedFormat.blockProgression == BlockProgression.RL) {
	paddingAmount += Math.max(getEffectivePaddingLeft() + getEffectivePaddingRight(), getEffectiveBorderLeftWidth() + getEffectiveBorderRightWidth());
	}
	else {
	paddingAmount += Math.max(getEffectivePaddingTop() + getEffectivePaddingBottom(), getEffectiveBorderTopWidth() + getEffectiveBorderBottomWidth());
	}

	return paddingAmount;
	}

	public function get includeDescentInCellBounds():Boolean
	{
	return _includeDescentInCellBounds;
	}

	public function set includeDescentInCellBounds(value:Boolean):void
	{
	_includeDescentInCellBounds = value;
	}


	}
	}