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Rich Internet Application Framework for GWT

There is a newer version: 2.3.1-gwt22

/*
 * Sencha GXT 2.3.0 - Sencha for GWT
 * Copyright(c) 2007-2013, Sencha, Inc.
 * [email protected]
 * 
 * http://www.sencha.com/products/gxt/license/
 */
 package com.extjs.gxt.ui.client.widget.grid;

import java.util.List;
import java.util.Map;

import com.extjs.gxt.ui.client.core.DomHelper;
import com.extjs.gxt.ui.client.core.El;
import com.extjs.gxt.ui.client.core.FastMap;
import com.extjs.gxt.ui.client.core.Template;
import com.extjs.gxt.ui.client.core.XDOM;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.store.ListStore;
import com.extjs.gxt.ui.client.util.Params;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.NodeList;
import com.google.gwt.dom.client.TableSectionElement;

/**
 * A GroupingView with support for a summary row.
 */
public class GroupSummaryView extends GroupingView {

  protected Template rowTpl, cellTpl;

  /**
   * Returns the summary node element.
   * 
   * @param g the group element
   * @return the summary node
   */
  public El getSummaryNode(Element g) {
    if (g != null) {
      return fly(g).down(".x-grid3-summary-row");
    }
    return null;
  }

  /**
   * Returns true if summaries are visible.
   * 
   * @return true for visible
   */
  public boolean isSummaryVisible() {
    return !grid.el().hasStyleName("x-grid-hide-summary");
  }

  /**
   * Toggles the summary information visibility.
   * 
   * @param visible true for visible, false to hide
   */
  public void toggleSummaries(boolean visible) {
    El el = grid.el();
    if (el != null) {
      if (visible) {
        el.removeStyleName("x-grid-hide-summary");
      } else {
        el.addStyleName("x-grid-hide-summary");
      }
    }
  }

  @SuppressWarnings({"unchecked", "rawtypes"})
  protected Map calculate(List models, List cs) {
    Map data = new FastMap();

    for (int j = 0, jlen = models.size(); j < jlen; j++) {
      ModelData m = models.get(j);
      for (int i = 0, len = cs.size(); i < len; i++) {
        ColumnData c = cs.get(i);
        SummaryColumnConfig cf = (SummaryColumnConfig) cm.getColumn(i);
        if (cf.getSummaryType() != null) {
          data.put(c.name, cf.getSummaryType().render(data.get(c.name), m, c.name, data));
        }
      }
    }
    return data;
  }

  protected void doAllWidths(List ws, int tw) {
    if (!enableGrouping) return;
    NodeList gs = getGroups();
    for (int i = 0, len = gs.getLength(); i < len; i++) {
      Element s = gs.getItem(i).getChildNodes().getItem(2).cast();
      El.fly(s).setWidth(tw);
      if (s.getFirstChild() == null) return;
      El.fly(s.getFirstChildElement()).setWidth(tw);
      TableSectionElement tse = s.getFirstChildElement().cast();
      NodeList cells = tse.getRows().getItem(0).getChildNodes().cast();
      for (int j = 0, wlen = ws.size(); j < wlen; j++) {
        El.fly(cells.getItem(j)).setWidth(ws.get(j));
      }
    }
  }

  @SuppressWarnings({"unchecked", "rawtypes"})
  @Override
  protected void doGroupEnd(StringBuilder buf, GroupColumnData g, List cs, int colCount) {
    Map data = calculate(g.models, cs);
    buf.append("

");
    buf.append(renderSummary(data, cs));
    buf.append("