org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/css2/layout/CSSWidgetLayout.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2006 Sybase, Inc. and others.\r
   3  *\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     Sybase, Inc. - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.eclipse.jst.pagedesigner.css2.layout;\r
  13 \r
  14 import org.eclipse.draw2d.Graphics;\r
  15 import org.eclipse.draw2d.geometry.Dimension;\r
  16 import org.eclipse.draw2d.geometry.Rectangle;\r
  17 import org.eclipse.jst.pagedesigner.css2.provider.DimensionInfo;\r
  18 import org.eclipse.jst.pagedesigner.css2.provider.ICSSWidgetProvider;\r
  19 \r
  20 /**\r
  21  * @author mengbo\r
  22  */\r
  23 public class CSSWidgetLayout extends CSSBlockFlowLayout implements ICSSPainter {\r
  24         private WidgetBox _widgetBox;\r
  25 \r
  26         private ICSSWidgetProvider _provider;\r
  27 \r
  28         /**\r
  29          * @param flowfigure\r
  30          * @param provider \r
  31          */\r
  32         public CSSWidgetLayout(CSSFigure flowfigure, ICSSWidgetProvider provider) {\r
  33                 super(flowfigure);\r
  34                 _provider = provider;\r
  35         }\r
  36 \r
  37         /**\r
  38          * normally this method is called directly after constructor\r
  39          * \r
  40          * @param provider\r
  41          */\r
  42         public void setProvider(ICSSWidgetProvider provider) {\r
  43                 _provider = provider;\r
  44         }\r
  45 \r
  46         /**\r
  47          * @return the provider\r
  48          */\r
  49         public ICSSWidgetProvider getProvider() {\r
  50                 // return ((CSSWidgetFigure)this.getFlowFigure()).getProvider();\r
  51                 return _provider;\r
  52         }\r
  53 \r
  54         /*\r
  55          * (non-Javadoc)\r
  56          * \r
  57          * @see org.eclipse.jst.pagedesigner.css2.layout.CSSBlockFlowLayout#isInlineBlock()\r
  58          */\r
  59         public boolean isInlineBlock() {\r
  60                 ICSSWidgetProvider provider = getProvider();\r
  61                 return provider.isInline();\r
  62         }\r
  63 \r
  64         /*\r
  65          * (non-Javadoc)\r
  66          * \r
  67          * @see org.eclipse.jst.pagedesigner.css2.layout.FlowFigureLayout#layout()\r
  68          */\r
  69         protected void layoutChildren() {\r
  70                 ICSSWidgetProvider provider = getProvider();\r
  71 \r
  72                 // if we did endLine, then will result in context create a new line, so\r
  73                 // we may in the new line now.\r
  74                 // passing in the top margin, and context will consider that when\r
  75                 // creating the new line.\r
  76 \r
  77                 int suggestedWith = _blockBox.getContentWidth();\r
  78                 int suggestedHeight = _blockBox.getContentHeight();\r
  79                 // int suggestedWith = getSuggestedWidth(line, style, provider);\r
  80                 // int suggestedHeight = getSuggestedHeight(line, style, provider);\r
  81 \r
  82                 DimensionInfo resultInfo = provider.getPreferredDimension(\r
  83                                 suggestedWith, suggestedHeight);\r
  84                 Dimension resultSize = resultInfo.getDimension();\r
  85 \r
  86                 _widgetBox = new WidgetBox(); // ((CSSWidgetFigure)getFlowFigure()).getWidgetBox();\r
  87                 // if (provider.isHandlingBorder() || style == null)\r
  88                 // {\r
  89                 _widgetBox.setWidth(resultSize.width);\r
  90                 _widgetBox.setHeight(resultSize.height);\r
  91                 _widgetBox.setAscent(resultInfo.getAscent());\r
  92                 // }\r
  93                 // else\r
  94                 // {\r
  95                 // widgetBox.setWidth(resultSize.width +\r
  96                 // style.getBorderInsets().getWidth());\r
  97                 // widgetBox.setHeight(resultSize.height +\r
  98                 // style.getBorderInsets().getHeight());\r
  99                 // widgetBox.setAscent(resultInfo.getAscent()+style.getBorderInsets().top);\r
 100                 // }\r
 101                 this.addToCurrentLine(_widgetBox);\r
 102                 // if (!provider.isInline())\r
 103                 // {\r
 104                 // context.endLine();\r
 105                 // }\r
 106         }\r
 107 \r
 108         /*\r
 109          * (non-Javadoc)\r
 110          * \r
 111          * @see org.eclipse.jst.pagedesigner.css2.layout.FlowFigureLayout#dispose()\r
 112          */\r
 113         public void dispose() {\r
 114         // TODO: anything to dispose?\r
 115         }\r
 116 \r
 117         // public int getSuggestedWidth(LineBox line, ICSSStyle style,\r
 118         // ICSSWidgetProvider provider)\r
 119         // {\r
 120         // if (style == null) return -1;\r
 121         //\r
 122         // Object width = style.getStyleProperty(ICSSPropertyID.ATTR_WIDTH);\r
 123         // Length recommendedWidth = (width instanceof Length) ? (Length) width :\r
 124         // null;\r
 125         //\r
 126         // int rw = 0;\r
 127         // if (recommendedWidth == null || recommendedWidth.getValue() <= 0)\r
 128         // {\r
 129         // return -1;\r
 130         // }\r
 131         // else\r
 132         // {\r
 133         // if (recommendedWidth.isPercentage())\r
 134         // {\r
 135         // rw = line.getAvailableWidth() * recommendedWidth.getValue() / 100;\r
 136         // }\r
 137         // else\r
 138         // {\r
 139         // rw = recommendedWidth.getValue();\r
 140         // }\r
 141         //\r
 142         // if (!style.isSizeIncludeBorderPadding() && provider.isHandlingBorder())\r
 143         // {\r
 144         // rw += style.getBorderInsets().getWidth() +\r
 145         // style.getPaddingInsets().getWidth();\r
 146         // }\r
 147         // else if (style.isSizeIncludeBorderPadding() &&\r
 148         // !provider.isHandlingBorder())\r
 149         // {\r
 150         // rw -= style.getBorderInsets().getWidth() +\r
 151         // style.getPaddingInsets().getWidth();\r
 152         // }\r
 153         // }\r
 154         //\r
 155         // return rw;\r
 156         // }\r
 157         //\r
 158         // public int getSuggestedHeight(LineBox line, ICSSStyle style,\r
 159         // ICSSWidgetProvider provider)\r
 160         // {\r
 161         // if (style == null) return -1;\r
 162         //\r
 163         // Object height = style.getStyleProperty(ICSSPropertyID.ATTR_HEIGHT);\r
 164         // Length recommendedHeight = (height instanceof Length) ? (Length) height :\r
 165         // null;\r
 166         //\r
 167         // int rh = 0;\r
 168         // if (recommendedHeight == null || recommendedHeight.getValue() <= 0)\r
 169         // {\r
 170         // return -1;\r
 171         // }\r
 172         // else\r
 173         // {\r
 174         // if (recommendedHeight.isPercentage())\r
 175         // {\r
 176         // // we don't support percentage height for this version, ignore\r
 177         // return -1;\r
 178         // }\r
 179         // else\r
 180         // {\r
 181         // rh = recommendedHeight.getValue();\r
 182         // }\r
 183         //\r
 184         // if (!style.isSizeIncludeBorderPadding() && provider.isHandlingBorder())\r
 185         // {\r
 186         // rh += style.getBorderInsets().getHeight() +\r
 187         // style.getPaddingInsets().getHeight();\r
 188         // }\r
 189         // else if (style.isSizeIncludeBorderPadding() &&\r
 190         // !provider.isHandlingBorder())\r
 191         // {\r
 192         // rh -= style.getBorderInsets().getHeight() +\r
 193         // style.getPaddingInsets().getHeight();\r
 194         // }\r
 195         // }\r
 196         //\r
 197         // return rh;\r
 198         // }\r
 199 \r
 200         /*\r
 201          * (non-Javadoc)\r
 202          * \r
 203          * @see org.eclipse.jst.pagedesigner.css2.layout.ICSSPainter#paintFigure(org.eclipse.draw2d.Graphics)\r
 204          */\r
 205         public void paintFigure(Graphics g) {\r
 206                 ICSSWidgetProvider provider = this.getProvider();\r
 207                 if (provider != null && _widgetBox != null) {\r
 208                         provider.paintFigure(g, new Rectangle(_widgetBox._x, _widgetBox._y,\r
 209                                         _widgetBox.getWidth(), _widgetBox.getHeight()));\r
 210                 }\r
 211         }\r
 212 \r
 213         /*\r
 214          * (non-Javadoc)\r
 215          * \r
 216          * @see org.eclipse.jst.pagedesigner.css2.layout.CSSLayout#handlingBorderForBlock()\r
 217          */\r
 218         public boolean handlingBorderForBlock() {\r
 219                 ICSSWidgetProvider provider = this.getProvider();\r
 220                 if (provider != null) {\r
 221                         return provider.isHandlingBorder();\r
 222                 }\r
 223                 return super.handlingBorderForBlock();\r
 224         }\r
 225 }\r