/*
* GridForm.java
*
* Created on August 7, 2007, 7:15 PM
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.totsp.gwittir.client.ui.table;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;
import com.totsp.gwittir.client.action.BindingAction;
import com.totsp.gwittir.client.beans.Binding;
import com.totsp.gwittir.client.beans.SourcesPropertyChangeEvents;
import com.totsp.gwittir.client.ui.BoundWidget;
import com.totsp.gwittir.client.ui.HasDefaultBinding;
import com.totsp.gwittir.client.ui.Label;
import com.totsp.gwittir.client.ui.util.BoundWidgetTypeFactory;
/**
*
* @author <a href="mailto:cooper@screaming-penguin.com">Robert "kebernet" Cooper</a>
*/
public class GridForm extends AbstractTableWidget implements HasDefaultBinding {
private static final String STYLE_NAME = "gwittir-GridForm";
private static final BindingAction DEFAULT_ACTION = new BindingAction() {
public void bind(BoundWidget widget) {
try {
((HasDefaultBinding) widget).bind();
} catch(ClassCastException cce) {
throw new RuntimeException(cce);
}
}
public void execute(BoundWidget model) {
}
public void unbind(BoundWidget widget) {
try {
((GridForm) widget).unbind();
} catch(ClassCastException cce) {
throw new RuntimeException(cce);
}
}
public void set(BoundWidget widget) {
try {
((GridForm) widget).set();
} catch(ClassCastException cce) {
throw new RuntimeException(cce);
}
}
};
private Binding binding = new Binding();
private FlexTable base = new FlexTable();
private Field[] fields;
private int columns = 1;
/** Creates a new instance of GridForm */
public GridForm(Field[] fields) {
this.fields = fields;
this.factory = new BoundWidgetTypeFactory(true);
super.initWidget(this.base);
this.setStyleName(GridForm.STYLE_NAME);
this.setAction(GridForm.DEFAULT_ACTION);
}
public GridForm(Field[] fields, int columns) {
this.fields = fields;
this.columns = columns;
this.factory = new BoundWidgetTypeFactory(true);
super.initWidget(this.base);
this.setStyleName(GridForm.STYLE_NAME);
this.setAction(GridForm.DEFAULT_ACTION);
}
public GridForm(
Field[] fields, int columns, BoundWidgetTypeFactory factory) {
this.fields = fields;
this.columns = columns;
this.factory = factory;
super.initWidget(this.base);
this.setStyleName(GridForm.STYLE_NAME);
this.setAction(GridForm.DEFAULT_ACTION);
}
public void bind() {
this.binding.bind();
}
public Object getValue() {
return this.getModel();
}
private void render() {
if(this.binding.getChildren().size() > 0) {
this.binding.unbind();
this.binding.getChildren().clear();
}
int row = 0;
for(int i = 0; i < this.fields.length;) {
for(int col = 0; (col < this.columns) && (i < fields.length);
col++) {
final Field field = this.fields[i];
if(field == null) {
i++;
continue;
}
Widget widget = (Widget) this.createWidget(
this.binding, field, (SourcesPropertyChangeEvents) this.getValue());
Label label = new Label(field.getLabel());
this.base.setWidget(row, col * 2, label);
this.base.getCellFormatter().setStyleName(
row, col * 2, "label");
this.base.setWidget(row, (col * 2) + 1, widget);
this.base.getCellFormatter()
.setStyleName(row, (col * 2) + 1, "field");
if(field.getHelpText() != null) {
label.addClickListener(
new ClickListener() {
public void onClick(Widget widget) {
final PopupPanel p = new PopupPanel(true);
p.setStyleName("gwittir-GridForm-Help");
p.setWidget(new HTML(field.getHelpText()));
p.setPopupPosition(
widget.getAbsoluteLeft(),
widget.getAbsoluteTop()
+ widget.getOffsetHeight());
p.show();
}
});
}
i++;
}
row++;
}
}
public void set() {
this.binding.setLeft();
}
public void setModel(Object model) {
super.setModel(model);
this.render();
}
public void setValue(Object value) {
Object old = this.getModel();
this.setModel(value);
this.changes.firePropertyChange("value", old, value);
}
public void unbind() {
this.binding.unbind();
}
}