package com.smartgwt.sample.showcase.client.grid.filtering;

import com.google.gwt.user.client.Timer;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DSResponse;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.types.DSOperationType;
import com.smartgwt.client.data.ResponseTransformer;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.Label;
import com.smartgwt.client.widgets.grid.ListGrid;

import com.google.gwt.core.client.EntryPoint;

public class MixedFilteringSample implements EntryPoint {

private Label serverCountLabel;
    
    private class ServerCountLabel extends Label {
        private int count = 0;  
  
        public ServerCountLabel() {  
            setWidth(700);
            setHeight(40);
            setPadding(10);
            setBorder("1px solid grey");
            setContents("<b>Number of server trips: 0</b>");
        }  
  
        public void updateContent (int totalRows, int startRow, int endRow) {
            count++;
            serverCountLabel.setContents("Number of server trips: " + this.count + 
                                         "<br/>Total rows in this filter set: " + totalRows + 
                                         "<br/>Last range of records returned: " + startRow + " to " + endRow);
        }
    } 
    
    @Override
    public void onModuleLoad() {

VLayout vLayout = new VLayout();
        vLayout.setWidth100();
        vLayout.setHeight100();
        vLayout.setMembersMargin(10);
    	
        DataSource ds = DataSource.get("filterOnServer", null, new ResponseTransformer() {
            protected void transformResponse(DSResponse response, DSRequest request, Object data) {
                if(request.getOperationType() == DSOperationType.FETCH) {
                    int totalRows = response.getTotalRows(); 
                    int startRow = response.getStartRow(); 
                    int endRow = response.getEndRow(); 
                    ((ServerCountLabel) serverCountLabel).updateContent(totalRows, startRow, endRow); 
                    serverCountLabel.setBackgroundColor("#ffff77"); 
                    new Timer() { 
                        public void run() { 
                            serverCountLabel.setBackgroundColor("#ffffff"); 
                        } 
                    }.schedule(500); 
                }
                defaultTransformResponse(response, request, data);
            }
        });
        
        ListGrid listGrid = new ListGrid();    	
        listGrid.setWidth(700);
        listGrid.setHeight(300);
        listGrid.setShowFilterEditor(true);
        listGrid.setFilterOnKeypress(true);
        listGrid.setAutoFetchData(true);
        listGrid.setDataSource(ds);
        
        serverCountLabel = new ServerCountLabel();
        
        vLayout.setMembers(listGrid, serverCountLabel);

vLayout.draw();
    }
    
    
}