Example usage for com.google.gwt.user.client.ui ScrollPanel setScrollPosition

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui ScrollPanel setScrollPosition.

Prototype

@Deprecated
public void setScrollPosition(int position) 

Source Link

Document

Sets the vertical scroll position.

Usage

From source file:asquare.gwt.tk.uitest.isvisible.client.Demo.java

License:Apache License

public void onModuleLoad() {
    RootPanel outer = RootPanel.get();/*from w  w w . ja v a  2  s.c o m*/

    TextBox rowInput = new TextBox();
    TextBox colInput = new TextBox();
    Grid input = new Grid(2, 2);
    input.setText(0, 0, "Row: ");
    input.setWidget(0, 1, rowInput);
    input.setText(1, 0, "Col: ");
    input.setWidget(1, 1, colInput);
    outer.add(input);

    final int ROWS = 20;
    final int COLS = 20;
    Grid grid = new Grid(ROWS, COLS);
    grid.setCellPadding(0);
    grid.setCellSpacing(0);
    for (int row = 0; row < ROWS; row++) {
        for (int col = 0; col < COLS; col++) {
            grid.setWidget(row, col, new Label("(" + row + "," + col + ")"));
        }
    }

    ScrollPanel scrollInner = new ScrollPanel();
    scrollInner.setAlwaysShowScrollBars(true);
    scrollInner.setPixelSize(400, 400);
    scrollInner.setWidget(grid);
    ScrollPanel scrollOuter = new ScrollPanel();
    scrollOuter.add(scrollInner);
    scrollOuter.setAlwaysShowScrollBars(true);
    scrollOuter.setPixelSize(600, 200);
    outer.add(scrollOuter);
    scrollInner.setScrollPosition(100);
    scrollInner.setHorizontalScrollPosition(100);
}

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From source file:edu.caltech.ipac.firefly.ui.GwtUtil.java

/**
 * Cause the ScrollPanel to set it scroll bars so the widget it is showing is centered
 *
 * @param sp the scrollPanel/*from  w  w w  .j  av a 2  s .  c o m*/
 */
public static void centerScrollPanel(ScrollPanel sp) {
    Element el = sp.getElement();
    int sw = DOM.getElementPropertyInt(el, "scrollWidth");
    int sh = DOM.getElementPropertyInt(el, "scrollHeight");
    int w = sp.getOffsetWidth();
    int h = sp.getOffsetHeight();
    sp.setScrollPosition((sh - h) / 2);
    sp.setHorizontalScrollPosition((sw - w) / 2);
}

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From source file:geogebra.web.gui.advanced.client.ui.widget.ListPopupPanel.java

License:Apache License

/** Adjusts drop down list sizes to make it take optimal area on the screen. */
protected void adjustSize() {
    ScrollPanel table = getScrollPanel();
    int visibleRows = getVisibleRows();
    int delta = getElement().getOffsetWidth() - getElement().getClientWidth();
    getScrollPanel().setWidth((getComboBox().getOffsetWidth() - delta) + "px");

    if (visibleRows <= 0) {
        table.setHeight("");
        int spaceAbove = getComboBox().getAbsoluteTop();
        int spaceUnder = Window.getClientHeight() - getComboBox().getAbsoluteTop()
                - getComboBox().getOffsetHeight();
        DOM.setStyleAttribute(table.getElement(), "maxHeight",
                Math.min(Window.getClientHeight() * 0.3, Math.max(spaceAbove, spaceUnder)) + "px");
    } else if (getComboBox().getModel().getCount() > visibleRows) {
        int index = getStartItemIndex();
        int count = getItemCount();

        if (index + visibleRows > count) {
            index = count - visibleRows + 1;
            if (index < 0)
                index = 0;//from ww  w . j  a  va  2  s.co  m
        }

        int listHeight = 0;
        int scrollPosition = 0;
        for (int i = 0; i < index + visibleRows && i < count; i++) {
            int height = getList().getWidget(i).getOffsetHeight();
            if (i < index)
                scrollPosition += height;
            else
                listHeight += height;
        }
        table.setSize(table.getOffsetWidth() + "px", listHeight + "px");
        table.setScrollPosition(scrollPosition);
        DOM.setStyleAttribute(table.getElement(), "maxHeight", "");
    } else {
        table.setHeight("");
        DOM.setStyleAttribute(table.getElement(), "maxHeight", "");
    }

    resetPosition();
}

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