git.roojs.org Git - roojs1/blob - Roo/grid/SplitDragZone.js

   1 /*
   2  * Based on:
   3  * Ext JS Library 1.1.1
   4  * Copyright(c) 2006-2007, Ext JS, LLC.
   5  *
   6  * Originally Released Under LGPL - original licence link has changed is not relivant.
   7  *
   8  * Fork - LGPL
   9  * <script type="text/javascript">
  10  */
  11
  12 // private
  13 // This is a support class used internally by the Grid components
  14 Roo.grid.SplitDragZone = function(grid, hd, hd2){
  15     this.grid = grid;
  16     this.view = grid.getView();
  17     this.proxy = this.view.resizeProxy;
  18     Roo.grid.SplitDragZone.superclass.constructor.call(this, hd,
  19         "gridSplitters" + this.grid.getGridEl().id, {
  20         dragElId : Roo.id(this.proxy.dom), resizeFrame:false
  21     });
  22     this.setHandleElId(Roo.id(hd));
  23     this.setOuterHandleElId(Roo.id(hd2));
  24     this.scroll = false;
  25 };
  26 Roo.extend(Roo.grid.SplitDragZone, Roo.dd.DDProxy, {
  27     fly: Roo.Element.fly,
  28
  29     b4StartDrag : function(x, y){
  30         this.view.headersDisabled = true;
  31         this.proxy.setHeight(this.view.mainWrap.getHeight());
  32         var w = this.cm.getColumnWidth(this.cellIndex);
  33         var minw = Math.max(w-this.grid.minColumnWidth, 0);
  34         this.resetConstraints();
  35         this.setXConstraint(minw, 1000);
  36         this.setYConstraint(0, 0);
  37         this.minX = x - minw;
  38         this.maxX = x + 1000;
  39         this.startPos = x;
  40         Roo.dd.DDProxy.prototype.b4StartDrag.call(this, x, y);
  41     },
  42
  43
  44     handleMouseDown : function(e){
  45         ev = Roo.EventObject.setEvent(e);
  46         var t = this.fly(ev.getTarget());
  47         if(t.hasClass("x-grid-split")){
  48             this.cellIndex = this.view.getCellIndex(t.dom);
  49             this.split = t.dom;
  50             this.cm = this.grid.colModel;
  51             if(this.cm.isResizable(this.cellIndex) && !this.cm.isFixed(this.cellIndex)){
  52                 Roo.grid.SplitDragZone.superclass.handleMouseDown.apply(this, arguments);
  53             }
  54         }
  55     },
  56
  57     endDrag : function(e){
  58         this.view.headersDisabled = false;
  59         var endX = Math.max(this.minX, Roo.lib.Event.getPageX(e));
  60         var diff = endX - this.startPos;
  61         this.view.onColumnSplitterMoved(this.cellIndex, this.cm.getColumnWidth(this.cellIndex)+diff);
  62     },
  63
  64     autoOffset : function(){
  65         this.setDelta(0,0);
  66     }
  67 });