Example usage for com.google.gwt.view.client HasRows getVisibleRange

Introduction

In this page you can find the example usage for com.google.gwt.view.client HasRows getVisibleRange.

Prototype

Range getVisibleRange();

Source Link

Document

Get the range of visible rows.

Usage

From source file:cc.alcina.framework.gwt.client.cell.ShowMorePager.java

License:Apache License

public void attachTo(HasRows display, ScrollPanel scrollable) {
    setDisplay(display);//from  w  ww  .  j  a v a2 s  . com
    // Handle scroll events.
    scrollable.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(ScrollEvent event) {
            // If scrolling up, ignore the event.
            int oldScrollPos = lastScrollPos;
            lastScrollPos = scrollable.getVerticalScrollPosition();
            if (oldScrollPos >= lastScrollPos) {
                return;
            }
            HasRows display = getDisplay();
            if (display == null) {
                return;
            }
            int scrollPanelContentsHeight = scrollable.getWidget().getOffsetHeight();
            int scrollPanelHeight = scrollable.getOffsetHeight();
            int maxScrollTop = scrollPanelContentsHeight - scrollPanelHeight - 20;
            // hack but not sure how to deal with said autoscrolls
            if (Math.abs(lastScrollPos - oldScrollPos) > 500) {
                // handle autoscroll to end
                return;
            }
            if (lastScrollPos >= maxScrollTop) {
                // We are near the end, so increase the page size.
                int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize,
                        display.getRowCount());
                if (newPageSize != 0) {
                    Range newRange = new Range(0, newPageSize);
                    if (display.getVisibleRange().getStart() == newRange.getStart()
                            && display.getVisibleRange().getLength() >= newRange.getLength()) {
                        // don't show a smaller visible range (which would
                        // force a search)
                        return;
                    }
                    display.setVisibleRange(0, newPageSize);
                }
            }
        }
    });
}

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From source file:cc.kune.gspace.client.i18n.RangeLabelPager.java

License:Apache License

@Override
protected void onRangeOrRowCountChanged() {
    final HasRows display = getDisplay();
    final Range range = display.getVisibleRange();
    final int start = range.getStart();
    final int end = start + range.getLength();
    label.setText(start + " - " + end + " : " + display.getRowCount(), HasDirection.Direction.LTR);
}

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From source file:cc.kune.gspace.client.i18n.ShowMorePagerPanel.java

License:Apache License

/**
 * Construct a new {@link ShowMorePagerPanel}.
 *//*  w  w  w  .j  a va 2  s .c o m*/
public ShowMorePagerPanel() {
    initWidget(scrollable);

    // Do not let the scrollable take tab focus.
    scrollable.getElement().setTabIndex(-1);

    // Handle scroll events.
    scrollable.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(final ScrollEvent event) {
            // If scrolling up, ignore the event.
            final int oldScrollPos = lastScrollPos;
            lastScrollPos = scrollable.getScrollPosition();
            if (oldScrollPos >= lastScrollPos) {
                return;
            }

            final HasRows display = getDisplay();
            if (display == null) {
                return;
            }
            final int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight();
            if (lastScrollPos >= maxScrollTop) {
                // We are near the end, so increase the page size.
                final int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize,
                        display.getRowCount());
                display.setVisibleRange(0, newPageSize);
            }
        }
    });
}

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From source file:cimav.visorglass.client.widgets.components.ScrollingPager.java

License:Apache License

public ScrollingPager() {
    initWidget(scrollable);// ww w. jav a2 s.com
    scrollable.setPixelSize(250, 350);
    scrollable.getElement().getStyle().setBorderWidth(1, Style.Unit.PX);
    scrollable.getElement().getStyle().setBorderColor("red");
    scrollable.getElement().setTabIndex(-1);

    // Handle scroll events.
    scrollable.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(ScrollEvent p_event) {
            // If scrolling up, ignore the event.
            int oldScrollPos = lastScrollPos;
            lastScrollPos = scrollable.getVerticalScrollPosition();
            if (oldScrollPos >= lastScrollPos) {
                return;
            }
            HasRows display = getDisplay();
            if (display == null) {
                return;
            }
            int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight();
            if (lastScrollPos >= maxScrollTop) {
                // We are near the end, so increase the page size.
                int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize,
                        display.getRowCount());
                display.setVisibleRange(0, newPageSize);
            }
        }
    });
}

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From source file:com.arcbees.gquery.tooltip.client.contactcell.ShowMorePagerPanel.java

License:Apache License

/**
 * Construct a new {@link ShowMorePagerPanel}.
 */// ww  w.  j a  v a 2s.  co  m
public ShowMorePagerPanel() {
    init();

    // Handle scroll events.
    scrollable.addDomHandler(new ScrollHandler() {
        public void onScroll(ScrollEvent event) {
            // If scrolling up, ignore the event.
            int oldScrollPos = lastScrollPos;
            lastScrollPos = scrollable.getElement().getScrollTop();
            if (oldScrollPos >= lastScrollPos) {
                return;
            }

            HasRows display = getDisplay();
            if (display == null) {
                return;
            }
            int maxScrollTop = scrollable.getWidget().getOffsetHeight() - scrollable.getOffsetHeight();
            if (lastScrollPos >= maxScrollTop) {
                // We are near the end, so increase the page size.
                int newPageSize = Math.min(display.getVisibleRange().getLength() + incrementSize,
                        display.getRowCount());
                //all children will be replaced, ensure to destroy existing tooltip in order to avoid ghost
                // tooltips
                GQuery.$(".tooltipable", (Widget) display).as(Tooltip.Tooltip).destroy();
                display.setVisibleRange(0, newPageSize);
            }
        }
    }, ScrollEvent.getType());
}

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From source file:com.chinarewards.gwt.license.client.widget.DefaultPager.java

/**
 * Get the text to display in the pager that reflects the state of the
 * pager./* w ww.j  a v a2s.  c o  m*/
 * 
 * @return the text
 */
@Override
protected String createText() {
    // Default text is 1 based.
    final NumberFormat formatter = NumberFormat.getFormat("#,###");
    final HasRows display = getDisplay();
    Range range = display.getVisibleRange();
    int pageStart = range.getStart() + 1;
    final int pageSize = range.getLength();
    int dataSize = display.getRowCount();
    int endIndex = Math.min(dataSize, pageStart + pageSize - 1);
    endIndex = Math.max(pageStart, endIndex);
    boolean exact = display.isRowCountExact();

    // create listbox
    int currentPage = 0;
    int totalPage = 0;
    final ListBox pages = new ListBox();
    if (dataSize != 0) {
        currentPage = (pageStart - 1) / pageSize + 1;
        totalPage = (dataSize - 1) / pageSize + 1;

        for (int i = 1; i <= totalPage; i++) {
            pages.addItem(i + "", i + "");
        }
        pages.setSelectedIndex(currentPage - 1);
        pages.addChangeHandler(new ChangeHandler() {
            @Override
            public void onChange(ChangeEvent event) {
                String text = pages.getValue(pages.getSelectedIndex());
                int pageNum = (int) formatter.parse(text);
                int index = (pageNum - 1) * pageSize;
                display.setVisibleRange(index, pageSize);
            }
        });
    }

    // create label : total pages
    //getAdditionPanel().clear();
    //getAdditionPanel().add(new Label(" " + totalPage + " ,"));
    //getAdditionPanel().add(pages);
    //getAdditionPanel().add(new Label(""));

    // return formatter.format(pageStart) + "-" + formatter.format(endIndex)
    // + (exact ? " of " : " of over ") + formatter.format(dataSize);
    return "? " + currentPage + " ," + "" + totalPage + "," + dataSize + "?";
}

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From source file:com.chinarewards.gwt.license.client.widget.EltNewPager.java

/**
 * Get the text to display in the pager that reflects the state of the
 * pager./*from  ww  w .  j a  v a  2s.c  om*/
 * 
 * @return the text
 */
protected String createText() {
    // Default text is 1 based.
    final NumberFormat formatter = NumberFormat.getFormat("#,###");
    final HasRows display = getDisplay();
    Range range = display.getVisibleRange();
    int pageStart = range.getStart() + 1;
    final int pageSize = range.getLength();
    int dataSize = display.getRowCount();
    int endIndex = Math.min(dataSize, pageStart + pageSize - 1);
    endIndex = Math.max(pageStart, endIndex);
    // boolean exact = display.isRowCountExact();

    // create listbox
    int currentPage = 0;
    int totalPage = 0;
    final ListBox pages = new ListBox();
    if (dataSize != 0) {
        currentPage = (pageStart - 1) / pageSize + 1;
        totalPage = (dataSize - 1) / pageSize + 1;

        for (int i = 1; i <= totalPage; i++) {
            pages.addItem(i + "", i + "");
        }
        pages.setSelectedIndex(currentPage - 1);
        pages.addChangeHandler(new ChangeHandler() {
            @Override
            public void onChange(ChangeEvent event) {
                String text = pages.getValue(pages.getSelectedIndex());
                int pageNum = (int) formatter.parse(text);
                int index = (pageNum - 1) * pageSize;
                display.setVisibleRange(index, pageSize);
            }
        });
    }

    setButtonStyle(currentPage, totalPage);
    return "";
    // return "? " + currentPage + " ,"+""+totalPage+","+dataSize+"?";
}

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From source file:com.client.celltable.SimplePager.java

License:Apache License

/**
 * Get the text to display in the pager that reflects the state of the
 * pager./*ww w  .ja v  a  2  s . c  o  m*/
 * 
 * @return the text
 */
protected String createText() {
    // Default text is 1 based.
    NumberFormat formatter = NumberFormat.getFormat("#,###");
    HasRows display = getDisplay();
    Range range = display.getVisibleRange();
    int pageStart = range.getStart() + 1;
    int pageSize = range.getLength();
    int dataSize = display.getRowCount();
    int endIndex = Math.min(dataSize, pageStart + pageSize - 1);
    endIndex = Math.max(pageStart, endIndex);
    boolean exact = display.isRowCountExact();
    return formatter.format(pageStart) + "-" + formatter.format(endIndex) + (exact ? " of " : " of over ")
            + formatter.format(dataSize);
}

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From source file:com.client.celltable.SimplePager.java

License:Apache License

private int pageNumber() {
    NumberFormat formatter = NumberFormat.getFormat("#,###");
    HasRows display = getDisplay();
    Range range = display.getVisibleRange();
    int pageStart = range.getStart() + 1;
    return pageStart;
}

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From source file:com.freedomotic.clients.client.widgets.RangeLabelPager.java

License:Apache License

@Override
protected void onRangeOrRowCountChanged() {
    HasRows display = getDisplay();
    Range range = display.getVisibleRange();
    int start = range.getStart();
    int end = start + range.getLength();
    label.setText(start + " - " + end + " : " + display.getRowCount(), HasDirection.Direction.LTR);
}

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