0.6.x/js/ui/07_LayoutManagerBase.js

   1 var LayoutManagerBase = X.Class.create(
   2         'LayoutManagerBase',
   3         {
   4                 allowForSelf  : null,
   5                 allowForChild : null,
   6                 define : function( src ){
   7                         return X.Class._override( this, src, true );
   8                 },
   9
  10
  11                 reflow : function( nodeData, allowW, allowH ){
  12                         nodeData.preMesure( allowW, allowH );
  13
  14                         var children = nodeData.children,
  15                                 contentW = nodeData.contentWidth,
  16                                 contentH = nodeData.contentHeight,
  17                                 autoW    = contentW === AUTO,
  18                                 autoH    = contentH === AUTO,
  19                                 auto, calc, childW, childH, child, i, style, data,
  20                                 t, r, b, l;
  21                         if( children ){
  22                                 auto     = autoW && autoH;
  23                                 childW   = 0;
  24                                 childH   = 0;
  25                                 calc     = BasicLayoutManager.calcValue;
  26                                 for( i = children.length; i; ){
  27                                         child = children[ --i ];
  28                                         style = child.__style;
  29                                         if( style ){
  30                                                 data = style.data;
  31                                                 t = calc( data[ X.Css.AttrNo.top ],    contentH );
  32                                                 r = calc( data[ X.Css.AttrNo.right ],  contentW );
  33                                                 b = calc( data[ X.Css.AttrNo.bottom ], contentH );
  34                                                 l = calc( data[ X.Css.AttrNo.left ],   contentW );
  35                                         } else {
  36                                                 t = r = b = l = 0;
  37                                         };
  38                                         if( child.instanceOf( LayoutBoxPrivate ) ){
  39                                                 child.layoutManager.reflow( child, contentW - r - l, contentH - t - b );
  40                                         } else {
  41                                                 child.preMesure( contentW - r - l, contentH - t - b );
  42                                                 child.mesure();
  43                                                 child.postMesure();
  44                                         };
  45                                         if( !auto ) continue;
  46                                         if( autoW && childW < child.boxWidth  + r + l ) childW = child.boxWidth  + r + l;
  47                                         if( autoH && childH < child.boxHeight + t + b ) childH = child.boxHeight + t + b;
  48                                 };
  49                                 if( autoW )     nodeData.contentWidth  = childW;
  50                                 if( autoH ) nodeData.contentHeight = childH;
  51                         };
  52                         ( autoW || autoH ) && nodeData.postMesure();
  53
  54                         delete nodeData.dirty;
  55                 },
  56                 redraw : function( nodeData ){
  57                         var root = nodeData.rootData;
  58                         root.dirty === X.Css.Dirty.REFLOW && this.reflow( root );
  59
  60                         // draw
  61                 }
  62         }
  63 );