public Canvas getViewPanel() {
VLayout layout = new VLayout(15);
layout.setWidth(650);
layout.setAutoHeight();
final ListGrid countryGrid = new ListGrid();
countryGrid.setLeaveScrollbarGap(true);
countryGrid.setCanFreezeFields(false);
countryGrid.setCanGroupBy(false);
countryGrid.setWidth100();
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";
}
});
countryGrid.setFields(countryCodeField, nameField, capitalField, populationField, areaField);
ToolStripButton formulaButton =
new ToolStripButton("Formula Builder", "crystal/oo/sc_insertformula.png");
formulaButton.setAutoFit(true);
formulaButton.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.addFormulaField();
}
});
ToolStripButton summaryBuilder =
new ToolStripButton("Summary Builder", "crystal/16/apps/tooloptions.png");
summaryBuilder.setAutoFit(true);
summaryBuilder.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.addSummaryField();
}
});
ToolStripButton savePreference = new ToolStripButton("Persist State", "silk/database_gear.png");
savePreference.setAutoFit(true);
savePreference.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
String viewState = countryGrid.getViewState();
Offline.put("exampleState", viewState);
SC.say("Preferences persisted.");
}
});
// toolstrip to attach to the country grid
ToolStrip countryGridToolStrip = new ToolStrip();
countryGridToolStrip.setWidth100();
countryGridToolStrip.addFill();
countryGridToolStrip.addButton(formulaButton);
countryGridToolStrip.addButton(summaryBuilder);
countryGridToolStrip.addSeparator();
countryGridToolStrip.addButton(savePreference);
VLayout countryGridLayout = new VLayout(0);
countryGridLayout.setWidth(650);
countryGridLayout.addMember(countryGridToolStrip);
countryGridLayout.addMember(countryGrid);
layout.addMember(countryGridLayout);
final String previouslySavedState = (String) Offline.get("exampleState");
if (previouslySavedState != null) {
countryGrid.addDrawHandler(
new DrawHandler() {
@Override
public void onDraw(DrawEvent event) {
// restore any previously saved view state for this grid
countryGrid.setViewState(previouslySavedState);
}
});
}
return layout;
}
public Canvas getViewPanel() {
Canvas canvas = new Canvas();
final ListGrid countryGrid = new ListGrid();
countryGrid.setWidth(550);
countryGrid.setHeight(224);
countryGrid.setShowAllRecords(true);
countryGrid.setCellHeight(22);
countryGrid.setDataSource(CountryXmlDS.getInstance());
ListGridField countryCodeField = new ListGridField("countryCode", "Flag", 40);
countryCodeField.setAlign(Alignment.CENTER);
countryCodeField.setType(ListGridFieldType.IMAGE);
countryCodeField.setImageURLPrefix("flags/16/");
countryCodeField.setImageURLSuffix(".png");
countryCodeField.setCanEdit(false);
ListGridField nameField = new ListGridField("countryName", "Country");
ListGridField continentField = new ListGridField("continent", "Continent");
ListGridField memberG8Field = new ListGridField("member_g8", "Member G8");
ListGridField populationField = new ListGridField("population", "Population");
populationField.setType(ListGridFieldType.INTEGER);
populationField.setCellFormatter(
new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if (value != null) {
NumberFormat nf = NumberFormat.getFormat("0,000");
try {
return nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
} else {
return null;
}
}
});
ListGridField independenceField = new ListGridField("independence", "Independence");
countryGrid.setFields(
countryCodeField,
nameField,
continentField,
memberG8Field,
populationField,
independenceField);
countryGrid.setAutoFetchData(true);
countryGrid.setCanEdit(true);
countryGrid.setEditEvent(ListGridEditEvent.CLICK);
countryGrid.setListEndEditAction(RowEndEditAction.NEXT);
canvas.addChild(countryGrid);
IButton button = new IButton("Edit New");
button.setTop(250);
button.addClickHandler(
new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.startEditingNew();
}
});
canvas.addChild(button);
return canvas;
}