Example usage for com.google.gwt.gen2.table.event.client RowHighlightHandler RowHighlightHandler

Introduction

In this page you can find the example usage for com.google.gwt.gen2.table.event.client RowHighlightHandler RowHighlightHandler.

Prototype

RowHighlightHandler

Source Link

Usage

From source file:com.google.gwt.gen2.demo.scrolltable.client.option.log.LogOption.java

License:Apache License

@Override
protected Widget onInitialize() {
    layout = new FlexTable();

    // Create the log area
    logLabel = new HTML();
    logLabel.setHeight("200px");
    DOM.setStyleAttribute(logLabel.getElement(), "font", "8pt/10pt courier");
    ScrollPanel scrollPanel = new ScrollPanel(logLabel);
    scrollPanel.setPixelSize(500, 200);/*  ww w.j a v a  2s .c  o m*/
    DOM.setStyleAttribute(scrollPanel.getElement(), "border", "1px solid black");
    layout.setWidget(0, 0, scrollPanel);
    layout.getFlexCellFormatter().setColSpan(0, 0, 2);

    // Add a clear button
    Button clearButton = new Button("Clear Log", new ClickHandler() {
        public void onClick(ClickEvent event) {
            logLabel.setHTML("");
            lineCount = 0;
        }
    });
    layout.setWidget(1, 0, clearButton);
    layout.getFlexCellFormatter().setColSpan(1, 0, 2);

    // Add labels for highlighting
    final Label highlightedCellLabel = new Label("Highlighted cell:");
    final Label highlightedRowLabel = new Label("Highlighted row:");
    final Label unhighlightedCellLabel = new Label("Last unhighlighted cell:");
    final Label unhighlightedRowLabel = new Label("Last unhighlighted row:");
    layout.setWidget(2, 0, highlightedCellLabel);
    layout.setWidget(3, 0, highlightedRowLabel);
    layout.setWidget(2, 1, unhighlightedRowLabel);
    layout.setWidget(3, 1, unhighlightedCellLabel);

    // Add all of the listeners
    FixedWidthGrid dataTable = ScrollTableDemo.get().getDataTable();
    dataTable.addTableListener(new TableListener() {
        public void onCellClicked(SourcesTableEvents sender, int row, int cell) {
            addLogEntry("cell clicked: (" + row + "," + cell + ")", "#ff00ff");
        }
    });
    dataTable.addColumnSortHandler(new ColumnSortHandler() {
        public void onColumnSorted(ColumnSortEvent event) {
            ColumnSortList sortList = event.getColumnSortList();
            int column = -1;
            boolean ascending = true;
            if (sortList != null) {
                column = sortList.getPrimaryColumn();
                ascending = sortList.isPrimaryAscending();
            }
            if (ascending) {
                addLogEntry("sorted column: " + column + " (ascending)", "black");
            } else {
                addLogEntry("sorted column: " + column, "black");
            }
        }
    });
    dataTable.addCellHighlightHandler(new CellHighlightHandler() {
        public void onCellHighlight(CellHighlightEvent event) {
            Cell cell = event.getValue();
            highlightedCellLabel
                    .setText("Highlighted cell: (" + cell.getRowIndex() + "," + cell.getCellIndex() + ")");
        }
    });
    dataTable.addCellUnhighlightHandler(new CellUnhighlightHandler() {
        public void onCellUnhighlight(CellUnhighlightEvent event) {
            Cell cell = event.getValue();
            unhighlightedCellLabel.setText(
                    "Last unhighlighted cell: (" + cell.getRowIndex() + "," + cell.getCellIndex() + ")");
        }
    });
    dataTable.addRowHighlightHandler(new RowHighlightHandler() {
        public void onRowHighlight(RowHighlightEvent event) {
            Row cell = event.getValue();
            highlightedRowLabel.setText("Highlighted row: (" + cell.getRowIndex() + ")");
        }
    });
    dataTable.addRowUnhighlightHandler(new RowUnhighlightHandler() {
        public void onRowUnhighlight(RowUnhighlightEvent event) {
            Row cell = event.getValue();
            unhighlightedRowLabel.setText("Last unhighlighted row: (" + cell.getRowIndex() + ")");
        }
    });
    dataTable.addRowSelectionHandler(new RowSelectionHandler() {
        public void onRowSelection(RowSelectionEvent event) {
            // Show the previously selected rows
            Set<Row> deselectedRows = event.getDeselectedRows();
            String previous = "Previously selected rows: ";
            for (Row row : event.getOldValue()) {
                if (deselectedRows.contains(row)) {
                    previous += "-";
                }
                previous += row.getRowIndex() + ", ";
            }
            addLogEntry(previous, "green");

            // Show the currently selected rows
            Set<Row> selectedRows = event.getSelectedRows();
            String current = "Currently selected rows: ";
            for (Row row : event.getNewValue()) {
                if (selectedRows.contains(row)) {
                    current += "+";
                }
                current += row.getRowIndex() + ", ";
            }

            addLogEntry(current, "green");
        }
    });

    // Paging specific options
    if (PagingScrollTableDemo.get() != null) {
        PagingScrollTable<Student> pagingScrollTable = PagingScrollTableDemo.get().getPagingScrollTable();
        if (pagingScrollTable != null) {
            pagingScrollTable.addPageChangeHandler(new PageChangeHandler() {
                public void onPageChange(PageChangeEvent event) {
                    pageLoadDuration = new Duration();
                }
            });

            pagingScrollTable.addPageLoadHandler(new PageLoadHandler() {
                public void onPageLoad(PageLoadEvent event) {
                    // Convert to 1 based index
                    int page = event.getPage() + 1;
                    int duration = -1;
                    if (pageLoadDuration != null) {
                        duration = pageLoadDuration.elapsedMillis();
                        pageLoadDuration = null;
                    }
                    String text = "Page " + page + " loaded in " + duration + "ms";
                    addLogEntry(text, "black");
                }
            });
        }
    }

    return layout;
}

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