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package com.vaadin.v7.tests.components.grid;
import java.util.List;
import java.util.Random;
import com.vaadin.server.VaadinRequest;
import com.vaadin.tests.components.AbstractTestUIWithLog;
import com.vaadin.ui.CheckBox;
import com.vaadin.v7.data.Item;
import com.vaadin.v7.data.util.IndexedContainer;
import com.vaadin.v7.ui.Grid;
import com.vaadin.v7.ui.Grid.Column;
import com.vaadin.v7.ui.Grid.SelectionMode;
import com.vaadin.v7.ui.renderers.HtmlRenderer;
import com.vaadin.v7.ui.renderers.TextRenderer;
@SuppressWarnings("serial")
public class GridSwitchRenderers extends AbstractTestUIWithLog {
private static final int MANUALLY_FORMATTED_COLUMNS = 1;
private static final int COLUMNS = 3;
private static final int ROWS = 1000;
private static final String EXPANSION_COLUMN_ID = "Column 0";
private IndexedContainer ds;
@Override
protected void setup(VaadinRequest request) {
ds = new IndexedContainer() {
@Override
public List<Object> getItemIds(int startIndex, int numberOfIds) {
log("Requested items " + startIndex + " - "
+ (startIndex + numberOfIds));
return super.getItemIds(startIndex, numberOfIds);
}
};
{
ds.addContainerProperty(EXPANSION_COLUMN_ID, String.class, "");
int col = MANUALLY_FORMATTED_COLUMNS;
for (; col < COLUMNS; col++) {
ds.addContainerProperty(getColumnProperty(col), String.class,
"");
}
}
Random rand = new Random();
rand.setSeed(13334);
for (int row = 0; row < ROWS; row++) {
Item item = ds.addItem(Integer.valueOf(row));
fillRow("" + row, item);
item.getItemProperty(getColumnProperty(1)).setReadOnly(true);
}
final Grid grid = new Grid(ds);
grid.setWidth("100%");
grid.getColumn(EXPANSION_COLUMN_ID).setWidth(50);
for (int col = MANUALLY_FORMATTED_COLUMNS; col < COLUMNS; col++) {
grid.getColumn(getColumnProperty(col)).setWidth(300);
grid.getColumn(getColumnProperty(col))
.setRenderer(new TextRenderer());
}
grid.setSelectionMode(SelectionMode.NONE);
addComponent(grid);
final CheckBox changeRenderer = new CheckBox(
"SetHtmlRenderer for Column 2", false);
changeRenderer.addValueChangeListener(event -> {
Column column = grid.getColumn(getColumnProperty(1));
if (changeRenderer.getValue()) {
column.setRenderer(new HtmlRenderer());
} else {
column.setRenderer(new TextRenderer());
}
grid.markAsDirty();
});
addComponent(changeRenderer);
}
@SuppressWarnings("unchecked")
private void fillRow(String content, Item item) {
int col = MANUALLY_FORMATTED_COLUMNS;
for (; col < COLUMNS; col++) {
item.getItemProperty(getColumnProperty(col))
.setValue("<b>(" + content + ", " + col + ")</b>");
}
}
private static String getColumnProperty(int c) {
return "Column " + c;
}
}
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