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Auto Height Edit Plants Grid In Ext GWT

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Auto Height Edit Plants Grid In Ext GWT Sample Code

  1. package com.extjs.gxt.samples.client.examples.grid;  
  2.   
  3. import java.util.ArrayList;  
  4. import java.util.List;  
  5.   
  6. import com.extjs.gxt.samples.resources.client.Resources;  
  7. import com.extjs.gxt.samples.resources.client.model.Plant;  
  8. import com.extjs.gxt.ui.client.Style.HorizontalAlignment;  
  9. import com.extjs.gxt.ui.client.data.ModelData;  
  10. import com.extjs.gxt.ui.client.event.ButtonEvent;  
  11. import com.extjs.gxt.ui.client.event.ColumnModelEvent;  
  12. import com.extjs.gxt.ui.client.event.ComponentEvent;  
  13. import com.extjs.gxt.ui.client.event.Events;  
  14. import com.extjs.gxt.ui.client.event.Listener;  
  15. import com.extjs.gxt.ui.client.event.SelectionListener;  
  16. import com.extjs.gxt.ui.client.store.ListStore;  
  17. import com.extjs.gxt.ui.client.store.Store;  
  18. import com.extjs.gxt.ui.client.store.StoreEvent;  
  19. import com.extjs.gxt.ui.client.util.DateWrapper;  
  20. import com.extjs.gxt.ui.client.widget.ContentPanel;  
  21. import com.extjs.gxt.ui.client.widget.LayoutContainer;  
  22. import com.extjs.gxt.ui.client.widget.button.Button;  
  23. import com.extjs.gxt.ui.client.widget.form.CheckBox;  
  24. import com.extjs.gxt.ui.client.widget.form.DateField;  
  25. import com.extjs.gxt.ui.client.widget.form.NumberField;  
  26. import com.extjs.gxt.ui.client.widget.form.SimpleComboBox;  
  27. import com.extjs.gxt.ui.client.widget.form.TextField;  
  28. import com.extjs.gxt.ui.client.widget.form.ComboBox.TriggerAction;  
  29. import com.extjs.gxt.ui.client.widget.grid.CellEditor;  
  30. import com.extjs.gxt.ui.client.widget.grid.CheckColumnConfig;  
  31. import com.extjs.gxt.ui.client.widget.grid.ColumnConfig;  
  32. import com.extjs.gxt.ui.client.widget.grid.ColumnModel;  
  33. import com.extjs.gxt.ui.client.widget.grid.EditorGrid;  
  34. import com.extjs.gxt.ui.client.widget.layout.FitLayout;  
  35. import com.extjs.gxt.ui.client.widget.layout.FlowLayout;  
  36. import com.extjs.gxt.ui.client.widget.toolbar.ToolBar;  
  37. import com.google.gwt.i18n.client.DateTimeFormat;  
  38. import com.google.gwt.i18n.client.NumberFormat;  
  39. import com.google.gwt.user.client.Element;  
  40.   
  41. public class AutoHeightGridExample extends LayoutContainer {  
  42.   private EditorGrid<Plant> grid;  
  43.   private ContentPanel cp;  
  44.   
  45.   protected Plant createPlant() {  
  46.     Plant plant = new Plant();  
  47.     plant.setName("New Plant 1");  
  48.     plant.setLight("Mostly Shady");  
  49.     plant.setPrice(0);  
  50.     plant.setAvailable(new DateWrapper().clearTime().asDate());  
  51.     plant.setIndoor(false);  
  52.     return plant;  
  53.   }  
  54.   
  55.   protected void doAutoHeight() {  
  56.     if (grid.isViewReady()) {  
  57.       grid.getView().getScroller().setStyleAttribute("overflowY", "hidden");  
  58.       cp.setHeight((grid.getView().getBody().isScrollableX() ? 19 : 0) + grid.el().getFrameWidth("tb")  
  59.           + grid.getView().getHeader().getHeight() + cp.getFrameHeight()  
  60.           + grid.getView().getBody().firstChild().getHeight());  
  61.     }  
  62.   }  
  63.   
  64.   @Override  
  65.   protected void onRender(Element parent, int index) {  
  66.     super.onRender(parent, index);  
  67.   
  68.     setLayout(new FlowLayout(10));  
  69.   
  70.     List<ColumnConfig> configs = new ArrayList<ColumnConfig>();  
  71.   
  72.     ColumnConfig column = new ColumnConfig();  
  73.     column.setId("name");  
  74.     column.setHeader("Common Name");  
  75.     column.setWidth(220);  
  76.   
  77.     TextField<String> text = new TextField<String>();  
  78.     text.setAllowBlank(false);  
  79.     column.setEditor(new CellEditor(text));  
  80.     configs.add(column);  
  81.   
  82.     final SimpleComboBox<String> combo = new SimpleComboBox<String>();  
  83.     combo.setForceSelection(true);  
  84.     combo.setTriggerAction(TriggerAction.ALL);  
  85.     combo.add("Shade");  
  86.     combo.add("Mostly Shady");  
  87.     combo.add("Sun or Shade");  
  88.     combo.add("Mostly Sunny");  
  89.     combo.add("Sunny");  
  90.   
  91.     CellEditor editor = new CellEditor(combo) {  
  92.       @Override  
  93.       public Object preProcessValue(Object value) {  
  94.         if (value == null) {  
  95.           return value;  
  96.         }  
  97.         return combo.findModel(value.toString());  
  98.       }  
  99.   
  100.       @Override  
  101.       public Object postProcessValue(Object value) {  
  102.         if (value == null) {  
  103.           return value;  
  104.         }  
  105.         return ((ModelData) value).get("value");  
  106.       }  
  107.     };  
  108.   
  109.     column = new ColumnConfig();  
  110.     column.setId("light");  
  111.     column.setHeader("Light");  
  112.     column.setWidth(130);  
  113.     column.setEditor(editor);  
  114.     configs.add(column);  
  115.   
  116.     column = new ColumnConfig();  
  117.     column.setId("price");  
  118.     column.setHeader("Price");  
  119.     column.setAlignment(HorizontalAlignment.RIGHT);  
  120.     column.setWidth(70);  
  121.     column.setNumberFormat(NumberFormat.getCurrencyFormat());  
  122.     column.setEditor(new CellEditor(new NumberField()));  
  123.   
  124.     configs.add(column);  
  125.   
  126.     DateField dateField = new DateField();  
  127.     dateField.getPropertyEditor().setFormat(DateTimeFormat.getFormat("MM/dd/y"));  
  128.   
  129.     column = new ColumnConfig();  
  130.     column.setId("available");  
  131.     column.setHeader("Available");  
  132.     column.setWidth(95);  
  133.     column.setEditor(new CellEditor(dateField));  
  134.     column.setDateTimeFormat(DateTimeFormat.getFormat("MMM dd yyyy"));  
  135.     configs.add(column);  
  136.   
  137.     CheckColumnConfig checkColumn = new CheckColumnConfig("indoor", "Indoor?", 55);  
  138.     CellEditor checkBoxEditor = new CellEditor(new CheckBox());  
  139.     checkColumn.setEditor(checkBoxEditor);  
  140.     configs.add(checkColumn);  
  141.   
  142.     final ListStore<Plant> store = new ListStore<Plant>();  
  143.   
  144.     ColumnModel cm = new ColumnModel(configs);  
  145.   
  146.     cp = new ContentPanel();  
  147.     cp.setHeading("Auto Height Edit Plants");  
  148.     cp.setFrame(true);  
  149.     cp.setIcon(Resources.ICONS.table());  
  150.     cp.setWidth(600);  
  151.     cp.setLayout(new FitLayout());  
  152.   
  153.     grid = new EditorGrid<Plant>(store, cm);  
  154.     grid.setAutoExpandColumn("name");  
  155.     grid.setBorders(true);  
  156.     grid.addPlugin(checkColumn);  
  157.     cp.add(grid);  
  158.   
  159.     ToolBar toolBar = new ToolBar();  
  160.     Button add = new Button("Add Plant");  
  161.     add.addSelectionListener(new SelectionListener<ButtonEvent>() {  
  162.   
  163.       @Override  
  164.       public void componentSelected(ButtonEvent ce) {  
  165.   
  166.         grid.stopEditing();  
  167.         store.insert(createPlant(), 0);  
  168.         grid.startEditing(0, 0);  
  169.   
  170.       }  
  171.   
  172.     });  
  173.     toolBar.add(add);  
  174.     cp.setTopComponent(toolBar);  
  175.     cp.setButtonAlign(HorizontalAlignment.CENTER);  
  176.     cp.addButton(new Button("Reset", new SelectionListener<ButtonEvent>() {  
  177.   
  178.       @Override  
  179.       public void componentSelected(ButtonEvent ce) {  
  180.         store.rejectChanges();  
  181.       }  
  182.     }));  
  183.   
  184.     cp.addButton(new Button("Save", new SelectionListener<ButtonEvent>() {  
  185.   
  186.       @Override  
  187.       public void componentSelected(ButtonEvent ce) {  
  188.         store.commitChanges();  
  189.       }  
  190.     }));  
  191.   
  192.     add(cp);  
  193.     store.insert(createPlant(), 0);  
  194.     store.insert(createPlant(), 1);  
  195.     store.insert(createPlant(), 2);  
  196.   
  197.     grid.addListener(Events.ViewReady, new Listener<ComponentEvent>() {  
  198.       public void handleEvent(ComponentEvent be) {  
  199.         grid.getStore().addListener(Store.Add, new Listener<StoreEvent<Plant>>() {  
  200.           public void handleEvent(StoreEvent<Plant> be) {  
  201.             doAutoHeight();  
  202.           }  
  203.         });  
  204.         doAutoHeight();  
  205.       }  
  206.     });  
  207.     grid.addListener(Events.ColumnResize, new Listener<ComponentEvent>() {  
  208.       public void handleEvent(ComponentEvent be) {  
  209.         doAutoHeight();  
  210.       }  
  211.     });  
  212.     grid.getColumnModel().addListener(Events.HiddenChange, new Listener<ColumnModelEvent>() {  
  213.       public void handleEvent(ColumnModelEvent be) {  
  214.         doAutoHeight();  
  215.       }  
  216.     });  
  217.   }  
  218. }  
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