data-miner-manager/src/main/java/org/gcube/portlets/user/dataminermanager/client/parametersfield/ListStringFld.java

303 lines
8.0 KiB
Java

/**
*
*/
package org.gcube.portlets.user.dataminermanager.client.parametersfield;
import java.util.ArrayList;
import java.util.List;
import org.gcube.portlets.user.dataminermanager.client.DataMinerManager;
import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ListParameter;
import org.gcube.portlets.user.dataminermanager.client.bean.parameters.ObjectParameter;
import org.gcube.portlets.user.dataminermanager.client.bean.parameters.Parameter;
import com.google.gwt.editor.client.Editor.Path;
import com.google.gwt.user.client.ui.Widget;
import com.sencha.gxt.core.client.ValueProvider;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.data.shared.ModelKeyProvider;
import com.sencha.gxt.data.shared.PropertyAccess;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutData;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutPack;
import com.sencha.gxt.widget.core.client.container.HBoxLayoutContainer;
import com.sencha.gxt.widget.core.client.container.HtmlLayoutContainer;
import com.sencha.gxt.widget.core.client.container.MarginData;
import com.sencha.gxt.widget.core.client.container.SimpleContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.form.TextField;
/**
*
* @author Giancarlo Panichi
* email: <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
*
*/
public class ListStringFld extends AbstractFld {
private SimpleContainer fieldContainer;
private HBoxLayoutContainer horiz;
private SimpleContainer listContainer;
private VerticalLayoutContainer vp;
private List<Item> items;
private ListParameter listParameter;
/**
*
* @param parameter
*/
public ListStringFld(Parameter parameter) {
super(parameter);
listParameter = (ListParameter) parameter;
listContainer = new SimpleContainer();
vp = new VerticalLayoutContainer();
items = new ArrayList<Item>();
addField(null);
listContainer.add(vp, new MarginData(new Margins()));
fieldContainer = new SimpleContainer();
horiz = new HBoxLayoutContainer();
horiz.setPack(BoxLayoutPack.START);
horiz.setEnableOverflow(false);
HtmlLayoutContainer descr;
if (listParameter.getDescription() == null) {
descr = new HtmlLayoutContainer("<p style='margin-left:5px;'></p>");
descr.addStyleName("workflow-fieldDescription");
} else {
listContainer.setToolTip(listParameter.getDescription());
descr = new HtmlLayoutContainer("<p style='margin-left:5px;'>"
+ listParameter.getDescription() + "</p>");
descr.addStyleName("workflow-fieldDescription");
}
horiz.add(listContainer, new BoxLayoutData(new Margins(0)));
horiz.add(descr, new BoxLayoutData(new Margins(0)));
fieldContainer.add(horiz);
fieldContainer.forceLayout();
}
public interface ItemStringProperties extends PropertyAccess<ItemString> {
@Path("id")
ModelKeyProvider<ItemString> id();
ValueProvider<ItemString, String> label();
}
public class ItemString{
}
/*
private void gridDef(){
ColumnConfig<Stock, String> nameCol = new ColumnConfig<Stock, String>(props.name(), 50, "Company");
ColumnConfig<Stock, String> symbolCol = new ColumnConfig<Stock, String>(props.symbol(), 75, "Symbol");
ColumnConfig<Stock, Double> lastCol = new ColumnConfig<Stock, Double>(props.last(), 75, "Last");
ColumnConfig<Stock, Double> changeCol = new ColumnConfig<Stock, Double>(props.change(), 75, "Change");
ColumnConfig<Stock, Date> lastTransCol = new ColumnConfig<Stock, Date>(props.lastTrans(), 100, "Last Updated");
final NumberFormat number = NumberFormat.getFormat("0.00");
changeCol.setCell(new AbstractCell<Double>() {
@Override
public void render(Context context, Double value, SafeHtmlBuilder sb) {
String style = "style='color: " + (value < 0 ? "red" : "green") + "'";
String v = number.format(value);
sb.appendHtmlConstant("<span " + style + ">" + v + "</span>");
}
});
lastTransCol.setCell(new DateCell(DateTimeFormat.getFormat("MM/dd/yyyy")));
List<ColumnConfig<Stock, ?>> columns = new ArrayList<ColumnConfig<Stock, ?>>();
columns.add(nameCol);
columns.add(symbolCol);
columns.add(lastCol);
columns.add(changeCol);
columns.add(lastTransCol);
ColumnModel<Stock> cm = new ColumnModel<Stock>(columns);
ListStore<Stock> store = new ListStore<Stock>(props.key());
store.addAll(TestData.getStocks());
final Grid<Stock> grid = new Grid<Stock>(store, cm);
grid.setAllowTextSelection(true);
grid.getView().setAutoExpandColumn(nameCol);
grid.getView().setStripeRows(true);
grid.getView().setColumnLines(true);
grid.setBorders(false);
grid.setColumnReordering(true);
}
*/
private void addField(Item upperItem) {
ObjectParameter objPar = new ObjectParameter(listParameter.getName(),
listParameter.getDescription(), listParameter.getType(), null);
if (upperItem == null) {
Item item = new Item(objPar, true);
items.add(item);
vp.add(item, new VerticalLayoutData(1,-1, new Margins()));
} else {
// search the position of the upper item
int pos = 0;
for (int i = 0; i < items.size(); i++)
if (items.get(i) == upperItem) {
pos = i;
break;
}
upperItem.showCancelButton();
Item item = new Item(objPar, false);
items.add(pos + 1, item);
vp.insert(item, pos + 1);
}
}
/**
* @param item
*/
protected void removeField(Item item) {
items.remove(item);
vp.remove(item);
if (items.size() == 1) {
items.get(0).hideCancelButton();
}
}
/**
*
*/
@Override
public String getValue() {
String separator = listParameter.getSeparator();
String value = "";
boolean first = true;
for (Item item : items) {
String itemValue = item.getValue();
if (itemValue != null && !itemValue.contentEquals("")) {
value += (first ? "" : separator) + itemValue;
first = false;
}
}
return value;
}
/**
*
*/
@Override
public Widget getWidget() {
return fieldContainer;
}
/**
*
*/
@Override
public boolean isValid() {
boolean valid = false;
for (Item item : items)
if (item.isValid()) {
valid = true;
break;
}
return valid;
}
private class Item extends HBoxLayoutContainer {
private TextField field;
private TextButton addBtn;
private TextButton removeBtn;
/**
* @param objPar
*/
public Item(ObjectParameter objectParameter, boolean first) {
super();
field = new TextField();
field.setAllowBlank(false);
addBtn = new TextButton("");
addBtn.setIcon(DataMinerManager.resources.add());
addBtn.addSelectHandler(new SelectEvent.SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
addField(Item.this);
forceLayout();
vp.forceLayout();
fieldContainer.forceLayout();
}
});
removeBtn = new TextButton("");
removeBtn.setIcon(DataMinerManager.resources.cancel());
removeBtn.addSelectHandler(new SelectEvent.SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
removeField(Item.this);
forceLayout();
vp.forceLayout();
fieldContainer.forceLayout();
}
});
removeBtn.setVisible(!first);
setPack(BoxLayoutPack.START);
setEnableOverflow(false);
add(field, new BoxLayoutData(new Margins()));
add(addBtn,new BoxLayoutData(new Margins()));
add(removeBtn,new BoxLayoutData(new Margins()));
forceLayout();
}
public void showCancelButton() {
removeBtn.setVisible(true);
}
public void hideCancelButton() {
removeBtn.setVisible(false);
}
public String getValue() {
return field.getCurrentValue();
}
public boolean isValid(){
return field.isValid();
}
}
}