Reordering TreeGrid (Ext GWT)
/*
* Ext GWT - Ext for GWT
* Copyright(c) 2007-2009, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.google.gwt.sample.hello.client;
import java.io.Serializable;
import java.util.Arrays;
import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.data.BaseTreeModel;
import com.extjs.gxt.ui.client.data.ModelData;
import com.extjs.gxt.ui.client.dnd.TreeGridDragSource;
import com.extjs.gxt.ui.client.dnd.TreeGridDropTarget;
import com.extjs.gxt.ui.client.dnd.DND.Feedback;
import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.FieldEvent;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.store.TreeStore;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.form.SimpleComboBox;
import com.extjs.gxt.ui.client.widget.form.ComboBox.TriggerAction;
import com.extjs.gxt.ui.client.widget.grid.ColumnConfig;
import com.extjs.gxt.ui.client.widget.grid.ColumnModel;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.extjs.gxt.ui.client.widget.layout.FlowLayout;
import com.extjs.gxt.ui.client.widget.toolbar.LabelToolItem;
import com.extjs.gxt.ui.client.widget.toolbar.SeparatorToolItem;
import com.extjs.gxt.ui.client.widget.toolbar.ToolBar;
import com.extjs.gxt.ui.client.widget.treegrid.TreeGrid;
import com.extjs.gxt.ui.client.widget.treegrid.TreeGridCellRenderer;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.RootPanel;
public class Hello implements EntryPoint {
public void onModuleLoad() {
RootPanel.get().add(new ReorderingTreeGridExample());
}
}
class ReorderingTreeGridExample extends LayoutContainer {
private TreeGridDropTarget target;
@Override
protected void onRender(Element parent, int index) {
super.onRender(parent, index);
setLayout(new FlowLayout(10));
Folder model = getTreeModel();
TreeStore<ModelData> store = new TreeStore<ModelData>();
store.add(model.getChildren(), true);
ColumnConfig name = new ColumnConfig("name", "Name", 100);
name.setRenderer(new TreeGridCellRenderer<ModelData>());
ColumnConfig date = new ColumnConfig("author", "Author", 100);
ColumnConfig size = new ColumnConfig("genre", "Genre", 100);
ColumnModel cm = new ColumnModel(Arrays.asList(name, date, size));
ContentPanel cp = new ContentPanel();
cp.setBodyBorder(false);
cp.setFrame(true);
cp.setHeading("Reordering TreeGrid Example");
cp.setButtonAlign(HorizontalAlignment.CENTER);
cp.setLayout(new FitLayout());
cp.setSize(500, 350);
ToolBar toolBar = new ToolBar();
toolBar.setBorders(true);
toolBar.add(new LabelToolItem("Feedback: "));
final SimpleComboBox<String> type = new SimpleComboBox<String>();
type.setTriggerAction(TriggerAction.ALL);
type.setEditable(false);
type.setWidth(100);
type.add("Both");
type.add("Append");
type.add("Insert");
type.setSimpleValue("Both");
type.addListener(Events.Change, new Listener<FieldEvent>() {
public void handleEvent(FieldEvent be) {
String v = type.getSimpleValue();
if ("Both".equals(v)) {
target.setFeedback(Feedback.BOTH);
} else if ("Append".equals(v)) {
target.setFeedback(Feedback.APPEND);
} else {
target.setFeedback(Feedback.INSERT);
}
}
});
toolBar.add(type);
toolBar.add(new SeparatorToolItem());
cp.setTopComponent(toolBar);
TreeGrid<ModelData> tree = new TreeGrid<ModelData>(store, cm);
tree.setBorders(true);
//tree.getStyle().setLeafIcon(Resources.ICONS.music());
tree.setAutoExpandColumn("name");
tree.setTrackMouseOver(false);
new TreeGridDragSource(tree);
target = new TreeGridDropTarget(tree);
target.setAllowSelfAsSource(true);
target.setFeedback(Feedback.BOTH);
cp.add(tree);
add(cp);
}
public static Folder getTreeModel() {
Folder[] folders = new Folder[] {
new Folder("Beethoven",
new Folder[] {
new Folder("Quartets",
new Music[] {
new Music("Six String Quartets", "Beethoven", "Quartets"),
new Music("Three String Quartets", "Beethoven", "Quartets"),
new Music("Grosse Fugue for String Quartets", "Beethoven",
"Quartets"),}),
new Folder("Sonatas", new Music[] {
new Music("Sonata in A Minor", "Beethoven", "Sonatas"),
new Music("Sonata in F Major", "Beethoven", "Sonatas"),}),
new Folder("Concertos", new Music[] {
new Music("No. 1 - C", "Beethoven", "Concertos"),
new Music("No. 2 - B-Flat Major", "Beethoven", "Concertos"),
new Music("No. 3 - C Minor", "Beethoven", "Concertos"),
new Music("No. 4 - G Major", "Beethoven", "Concertos"),
new Music("No. 5 - E-Flat Major", "Beethoven", "Concertos"),}),
new Folder("Symphonies", new Music[] {
new Music("No. 1 - C Major", "Beethoven", "Symphonies"),
new Music("No. 2 - D Major", "Beethoven", "Symphonies"),
new Music("No. 3 - E-Flat Major", "Beethoven", "Symphonies"),
new Music("No. 4 - B-Flat Major", "Beethoven", "Symphonies"),
new Music("No. 5 - C Minor", "Beethoven", "Symphonies"),
new Music("No. 6 - F Major", "Beethoven", "Symphonies"),
new Music("No. 7 - A Major", "Beethoven", "Symphonies"),
new Music("No. 8 - F Major", "Beethoven", "Symphonies"),
new Music("No. 9 - D Minor", "Beethoven", "Symphonies"),}),}),
new Folder("Brahms",
new Folder[] {
new Folder("Concertos", new Music[] {
new Music("Violin Concerto", "Brahms", "Concertos"),
new Music("Double Concerto - A Minor", "Brahms", "Concertos"),
new Music("Piano Concerto No. 1 - D Minor", "Brahms", "Concertos"),
new Music("Piano Concerto No. 2 - B-Flat Major", "Brahms",
"Concertos"),}),
new Folder("Quartets",
new Music[] {
new Music("Piano Quartet No. 1 - G Minor", "Brahms", "Quartets"),
new Music("Piano Quartet No. 2 - A Major", "Brahms", "Quartets"),
new Music("Piano Quartet No. 3 - C Minor", "Brahms", "Quartets"),
new Music("String Quartet No. 3 - B-Flat Minor", "Brahms",
"Quartets"),}),
new Folder("Sonatas", new Music[] {
new Music("Two Sonatas for Clarinet - F Minor", "Brahms", "Sonatas"),
new Music("Two Sonatas for Clarinet - E-Flat Major", "Brahms",
"Sonatas"),}),
new Folder("Symphonies", new Music[] {
new Music("No. 1 - C Minor", "Brahms", "Symphonies"),
new Music("No. 2 - D Minor", "Brahms", "Symphonies"),
new Music("No. 3 - F Major", "Brahms", "Symphonies"),
new Music("No. 4 - E Minor", "Brahms", "Symphonies"),}),}),
new Folder("Mozart", new Folder[] {new Folder("Concertos", new Music[] {
new Music("Piano Concerto No. 12", "Mozart", "Concertos"),
new Music("Piano Concerto No. 17", "Mozart", "Concertos"),
new Music("Clarinet Concerto", "Mozart", "Concertos"),
new Music("Violin Concerto No. 5", "Mozart", "Concertos"),
new Music("Violin Concerto No. 4", "Mozart", "Concertos"),}),}),};
Folder root = new Folder("root");
for (int i = 0; i < folders.length; i++) {
root.add((Folder) folders[i]);
}
return root;
}
}
class Folder extends BaseTreeModel implements Serializable {
private static int ID = 0;
public Folder() {
set("id", ID++);
}
public Folder(String name) {
set("id", ID++);
set("name", name);
}
public Folder(String name, BaseTreeModel[] children) {
this(name);
for (int i = 0; i < children.length; i++) {
add(children[i]);
}
}
public Integer getId() {
return (Integer) get("id");
}
public String getName() {
return (String) get("name");
}
public String toString() {
return getName();
}
}
class Music extends BaseTreeModel {
public Music() {
}
public Music(String name) {
set("name", name);
}
public Music(String name, String author, String genre) {
set("name", name);
set("author", author);
set("genre", genre);
}
public String getName() {
return (String) get("name");
}
public String getAuthor() {
return (String) get("author");
}
public String getGenre() {
return (String) get("genre");
}
public String toString() {
return getName();
}
}
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