Java Code Examples for com.google.gwt.dom.client.DivElement#as()

/**
 * Add new StepWidget into content area.
 *
 * @param stepIndex
 *            Index of step (0 based) (not element index in container)
 * @param widget
 * @param updateAffectedSteps
 *            Updates position of affected steps. Usually it means steps
 *            below the target.
 */
public void addStep(int stepIndex, StepWidget stepWidget, boolean updateAffectedSteps) {
    DivElement bar = DivElement.as(stepWidget.getElement());

    boolean newStep = !bar.hasParentElement();
    boolean moving = !newStep && getStepIndex(stepWidget) != stepIndex;
    boolean insertDOM = newStep || moving;

    if (insertDOM) {
        insert(stepIndex + getAdditonalContentElementCount(), stepWidget);
    }

    deferredUpdateStepTop(stepIndex, updateAffectedSteps, bar, insertDOM);

    if (newStep) {
        registerBarEventListener(bar);
    }
}
 

public GanttWidget() {

        setElement(DivElement.as(DOM.createDiv()));
        setStyleName(STYLE_GANTT);

        nowElement.setClassName(STYLE_NOW_ELEMENT);

        moveElement.setClassName(STYLE_MOVE_ELEMENT);
        // not visible by default
        moveElement.getStyle().setDisplay(Display.NONE);

        timeline = GWT.create(TimelineWidget.class);

        container = DivElement.as(DOM.createDiv());
        container.setClassName(STYLE_GANTT_CONTAINER);

        content = DivElement.as(DOM.createDiv());
        content.setClassName(STYLE_GANTT_CONTENT);
        container.appendChild(content);

        content.appendChild(moveElement);
        content.appendChild(nowElement);

        scrollbarSpacer = DivElement.as(DOM.createDiv());
        scrollbarSpacer.getStyle().setHeight(AbstractNativeScrollbar.getNativeScrollbarHeight(), Unit.PX);
        scrollbarSpacer.getStyle().setDisplay(Display.NONE);

        getElement().appendChild(timeline.getElement());
        getElement().appendChild(container);
        getElement().appendChild(scrollbarSpacer);
    }
 

public AbstractStepWidget() {
    DivElement bar = DivElement.as(DOM.createDiv());
    bar.setClassName(STYLE_BAR);
    setElement(bar);

    caption = DivElement.as(DOM.createDiv());
    caption.setClassName(STYLE_BAR_LABEL);
    bar.appendChild(caption);

    // hide by default
    bar.getStyle().setVisibility(Visibility.HIDDEN);
}
 

private DivElement createSpacerBlock(String className) {
    DivElement block = DivElement.as(DOM.createDiv());
    block.setClassName(STYLE_ROW + " " + STYLE_YEAR);
    block.addClassName(STYLE_SPACER);
    block.setInnerText(" ");
    block.getStyle().setDisplay(Display.NONE); // not visible by default
    spacerBlocks.add(block);
    return block;
}
 

private DivElement createTimelineBlock(String key, String text, String styleSuffix, BlockRowData rowData) {
    DivElement div = DivElement.as(DOM.createDiv());
    div.setClassName(STYLE_ROW + " " + styleSuffix);
    div.setInnerText(text);
    rowData.setBlockLength(key, 1);
    rowData.setBlock(key, div);
    return div;
}
 

private int calculateResolutionMinWidth() {

        boolean removeResolutionDiv = false;
        if (!resolutionDiv.hasParentElement()) {
            removeResolutionDiv = true;
            getElement().appendChild(resolutionDiv);
        }
        DivElement resBlockMeasure = DivElement.as(DOM.createDiv());
        if (resolution == Resolution.Week) {
            // configurable with '.col.w.measure' selector
            resBlockMeasure.setClassName(STYLE_COL + " " + STYLE_WEEK + " " + STYLE_MEASURE);
        } else {
            // measure for text 'MM'
            resBlockMeasure.setInnerText("MM");
            // configurable with '.col.measure' selector
            resBlockMeasure.setClassName(STYLE_COL + " " + STYLE_MEASURE);
        }
        resolutionDiv.appendChild(resBlockMeasure);
        int width = resBlockMeasure.getClientWidth();
        if (resolution == Resolution.Week) {
            // divide given width by number of days in week
            width = width / DAYS_IN_WEEK;
        }
        width = (width < resolutionWeekDayblockWidth) ? resolutionWeekDayblockWidth : width;
        resBlockMeasure.removeFromParent();
        if (removeResolutionDiv) {
            resolutionDiv.removeFromParent();
        }
        return width;
    }
 

/**
 * <p>
 * Updates the content of this widget. Builds the time-line and calculates
 * width and heights for the content (calls in the end
 * {@link #updateWidths()}). This should be called explicitly. Otherwise the
 * widget will be empty.
 * <p>
 * Date values should always follow specification in {@link Date#getTime()}.
 * Start and end date is always required.
 *
 * @param resolution
 *            Resolution enum (not null)
 * @param startDate
 *            Time-line's start date in milliseconds. (not null)
 * @param endDate
 *            Time-line's end date in milliseconds. (not null)
 * @param firstDayOfRange
 *            First day of the whole range. Allowed values are 1-7. 1 is
 *            Sunday. Required with {@link Resolution#Week}.
 * @param firstHourOfRange
 *            First hour of the range. Allowed values are 0-23. Required
 *            with {@link Resolution#Hour}.
 * @param localeDataProvider
 *            Data provider for locale specific data. month names, first day
 *            of week etc.
 *
 */
public void update(Resolution resolution, long startDate, long endDate, int firstDayOfRange, int firstHourOfRange,
        LocaleDataProvider localeDataProvider) {
    if (localeDataProvider == null) {
        GWT.log(getClass().getSimpleName() + " requires LocaleDataProvider. Can't complete update(...) operation.");
        return;
    }
    if (isChanged(resolution, startDate, endDate, localeDataProvider.getFirstDayOfWeek(), firstDayOfRange,
            firstHourOfRange, localeDataProvider.getLocale())) {
        clear();
        GWT.log(getClass().getSimpleName() + " content cleared.");
    } else {
        return;
    }

    GWT.log(getClass().getSimpleName() + " Updating content.");

    injectStyle();
    injectLeftStyle();

    if (styleElementForLeft != null) {
        StyleInjector.setContents(styleElementForLeft, "." + STYLE_COL + " { position: relative; left: 0px; }");
    }

    this.localeDataProvider = localeDataProvider;
    locale = localeDataProvider.getLocale();
    this.resolution = resolution;
    this.startDate = startDate;
    this.endDate = endDate;
    normalStartDate = toNormalDate(startDate);
    normalEndDate = toNormalDate(endDate);
    // Required with Resolution.Week.
    firstDayOfWeek = localeDataProvider.getFirstDayOfWeek();
    lastDayOfWeek = (firstDayOfWeek == 1) ? 7 : Math.max((firstDayOfWeek - 1) % 8, 1);
    this.firstDayOfRange = firstDayOfRange;
    this.firstHourOfRange = firstHourOfRange;
    monthNames = localeDataProvider.getMonthNames();
    weekdayNames = localeDataProvider.getWeekdayNames();
    resolutionDiv = DivElement.as(DOM.createDiv());
    resolutionDiv.setClassName(STYLE_ROW + " " + STYLE_RESOLUTION);

    if (minResolutionWidth < 0) {
        minResolutionWidth = calculateResolutionMinWidth();
    }

    if (resolution == Resolution.Day || resolution == Resolution.Week) {
        prepareTimelineForDayResolution(startDate, endDate);
    } else if (resolution == Resolution.Hour) {
        prepareTimelineForHourResolution(startDate, endDate);
    } else {
        GWT.log(getClass().getSimpleName() + " resolution " + (resolution != null ? resolution.name() : "null")
                + " is not supported");
        return;
    }

    if (isYearRowVisible()) {
        appendTimelineBlocks(yearRowData, STYLE_YEAR);
    }
    if (isMonthRowVisible()) {
        appendTimelineBlocks(monthRowData, STYLE_MONTH);
    }
    if (isDayRowVisible()) {
        appendTimelineBlocks(dayRowData, STYLE_DAY);
    }
    getElement().appendChild(resolutionDiv);

    GWT.log(getClass().getSimpleName() + " Constructed content.");

    updateWidths();

    GWT.log(getClass().getSimpleName() + " is updated for resolution " + resolution.name() + ".");
}
 

private DivElement createResolutionBlock() {
    DivElement resBlock = DivElement.as(DOM.createDiv());
    resBlock.setClassName("col");
    return resBlock;
}