package com.smartgwt.sample.showcase.client.grid.hiliting;
import com.google.gwt.i18n.client.NumberFormat;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.CellFormatter;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.layout.HLayout;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.sample.showcase.client.PanelFactory;
import com.smartgwt.sample.showcase.client.ShowcasePanel;
import com.smartgwt.sample.showcase.client.data.CountryXmlDS;
public class GridUserDefinedHilitingSample extends ShowcasePanel {
private static final String DESCRIPTION = "<p>DataBoundComponents allow end-users to create 'hilites' with rules based " +
"on the values of data. There are two sorts of hilites: simple hilites, which allow a single criterion based on a single " +
"field to affect a single target field (the same one), and Advanced hilites, which allow very complex criteria, based on multiple fields, " +
"to affect multiple target fields.</p>" +
"<p>Click the \"Edit Hilites\" button below to show the HiliteEditor interface. To set up a simple hilite, click on the \"Area (km<sup>2</sup>)\" record in " +
"the list to the left. When the simple hilite rule appears on the right, select the \"greater than\" operation from the drop-down box, type \"5000000\" " +
"into the value textBox, select a color from the 'Color' picker widget and click 'Save'. You'll see that all \"Area (km<sup>2</sup>)\" values in the grid that exceed " +
"5000000 are now hilighted in your chosen color.</p>" +
"<p>Now, add an Advanced criteria. Again, click the \"Edit Hilites\" button and then click the \"Add Advanced Rule\" button in the top left of the " +
"HiliteEditor - you'll now see the AdvancedHiliteEditor window. Add a new criterion that specifies <i>GDP ($M) greater than 1000000</i>. Click the green plus " +
"icon beneath the criterion and add a second one, this time specifying <i>Area (km<sup>2</sup>) less than 500000</i>. In the list below, select both \"GDP ($M)\" and \"Area (km<sup>2</sup>)\" " +
"and select a background color. Clicking 'Save' now will update the grid, showing both GDP and Area data in your selected background color, when GDP is higher than " +
"1 million and Area is less than <i>500,000</i>.</p>" +
"<p>You can easily provide users with the ability to save and restore their hilite information - all you need is the ability to save a string. Click the button below to " +
"see the grid's hilite state retrieved and serialized, by calling <i>getHiliteState()</i>, the grid destroyed and it's hilite-state restored to another grid via </i>setHiliteState()</i>.</p> ";
public static class Factory implements PanelFactory {
private String id;
public Canvas create() {
GridUserDefinedHilitingSample panel = new GridUserDefinedHilitingSample();
id = panel.getID();
return panel;
}
public String getID() {
return id;
}
public String getDescription() {
return DESCRIPTION;
}
}
@Override
protected boolean isTopIntro() {
return true;
}
private ListGrid countryGrid;
public Canvas getViewPanel() {
final VLayout layout = new VLayout(10);
layout.setAutoHeight();
HLayout hLayout = new HLayout(10);
countryGrid = createListGrid();
IButton editHilitesButton = new IButton("Edit Hilites");
editHilitesButton.setAutoFit(true);
editHilitesButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
countryGrid.editHilites();
}
});
IButton stateButton = new IButton("Recreate from State");
stateButton.setAutoFit(true);
stateButton.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
final String hiliteState = countryGrid.getHiliteState();
countryGrid.destroy();
//recreate the ListGrid
final ListGrid newListGrid = createListGrid();
layout.addMember(newListGrid);
//apply the previous hilite state
newListGrid.setHiliteState(hiliteState);
}
});
hLayout.addMember(editHilitesButton);
hLayout.addMember(stateButton);
layout.addMember(hLayout);
layout.addMember(countryGrid);
return layout;
}
private ListGrid createListGrid() {
final ListGrid countryGrid = new ListGrid();
countryGrid.setLeaveScrollbarGap(true);
countryGrid.setWidth(750);
countryGrid.setHeight(224);
countryGrid.setDataSource(CountryXmlDS.getInstance());
countryGrid.setAutoFetchData(true);
//allow users to add formula and summary fields
//accessible in the grid header context menu
countryGrid.setCanAddFormulaFields(true);
countryGrid.setCanAddSummaryFields(true);
ListGridField countryCodeField = new ListGridField("countryCode", "Flag", 50);
countryCodeField.setAlign(Alignment.CENTER);
countryCodeField.setType(ListGridFieldType.IMAGE);
countryCodeField.setImageURLPrefix("flags/16/");
countryCodeField.setImageURLSuffix(".png");
countryCodeField.setCanSort(false);
ListGridField nameField = new ListGridField("countryName", "Country");
ListGridField capitalField = new ListGridField("capital", "Capital");
ListGridField populationField = new ListGridField("population", "Population");
populationField.setCellFormatter(new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if (value == null) return null;
try {
NumberFormat nf = NumberFormat.getFormat("0,000");
return nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
}
});
ListGridField areaField = new ListGridField("area", "Area (km²)");
areaField.setType(ListGridFieldType.INTEGER);
areaField.setCellFormatter(new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if (value == null) return null;
String val = null;
try {
NumberFormat nf = NumberFormat.getFormat("0,000");
val = nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
return val + "km²";
}
});
ListGridField gdpField = new ListGridField("gdp", "GDP");
gdpField.setAlign(Alignment.RIGHT);
gdpField.setCellFormatter(new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if (value == null) return null;
try {
NumberFormat nf = NumberFormat.getFormat("0,000");
return "$" + nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
}
});
countryGrid.setFields(countryCodeField, nameField, capitalField, populationField, areaField, gdpField);
return countryGrid;
}
public String getIntro() {
return DESCRIPTION;
}
}