Example usage for javax.swing JScrollBar setValue

Introduction

In this page you can find the example usage for javax.swing JScrollBar setValue.

Prototype

@BeanProperty(bound = false, preferred = true, description = "The scrollbar's current value.")
public void setValue(int value)

Source Link

Document

Sets the scrollbar's value.

Usage

From source file:Main.java

/**
 * Move the cursor to the end of ScrollPane.
 *
 * @param pane the ScrollPane/*from w w  w . j  a  va2 s. c o m*/
 */
public static void moveEnd(JScrollPane pane) {
    JScrollBar bar = pane.getVerticalScrollBar();
    bar.setValue(bar.getMaximum());
}

From source file:Main.java

/**
 * Scrolls the given component to its top or bottom.
 * Useful for implementing behavior like in Apple's Mail where home/end in the list cause scrolling in the text.
 *///www .  j  ava2  s .  c  om
public static void scrollToExtremity(JComponent c, boolean top) {
    JScrollBar scrollBar = ((JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, c))
            .getVerticalScrollBar();
    scrollBar.setValue(top ? scrollBar.getMinimum() : scrollBar.getMaximum());
}

From source file:Main.java

/**
 * Scrolls scroll pane to the top left corner.
 *//*w  w  w .  j a  v  a  2  s .c om*/
public static void scrollToTop(final JScrollPane scrollPane) {
    JScrollBar verticalScrollBar = scrollPane.getVerticalScrollBar();
    JScrollBar horizontalScrollBar = scrollPane.getHorizontalScrollBar();
    verticalScrollBar.setValue(verticalScrollBar.getMinimum());
    horizontalScrollBar.setValue(horizontalScrollBar.getMinimum());
}

From source file:Main.java

/**
 * Scrolls the given component by its unit or block increment in the given direction (actually a scale factor, so use +1 or -1).
 * Useful for implementing behavior like in Apple's Mail where page up/page down in the list cause scrolling in the text.
 *///from  ww  w  .ja  v  a  2  s.  c  o  m
public static void scroll(JComponent c, boolean byBlock, int direction) {
    JScrollPane scrollPane = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, c);
    JScrollBar scrollBar = scrollPane.getVerticalScrollBar();
    int increment = byBlock ? scrollBar.getBlockIncrement(direction) : scrollBar.getUnitIncrement(direction);
    int newValue = scrollBar.getValue() + direction * increment;
    newValue = Math.min(newValue, scrollBar.getMaximum());
    newValue = Math.max(newValue, scrollBar.getMinimum());
    scrollBar.setValue(newValue);
}

From source file:Main.java

public static void scrollByBlock(JScrollBar scrollbar, int direction) {
    // This method is called from BasicScrollPaneUI to implement wheel
    // scrolling, and also from scrollByBlock().
    int oldValue = scrollbar.getValue();
    int blockIncrement = scrollbar.getBlockIncrement(direction);
    int delta = blockIncrement * ((direction > 0) ? +1 : -1);
    int newValue = oldValue + delta;

    // Check for overflow.
    if (delta > 0 && newValue < oldValue) {
        newValue = scrollbar.getMaximum();
    } else if (delta < 0 && newValue > oldValue) {
        newValue = scrollbar.getMinimum();
    }/* w  w  w.j ava  2s.c  o m*/

    scrollbar.setValue(newValue);
}

From source file:ButtonCornerSample.java

public void actionPerformed(ActionEvent actionEvent) {
    JScrollBar verticalScrollBar = scrollPane.getVerticalScrollBar();
    JScrollBar horizontalScrollBar = scrollPane.getHorizontalScrollBar();
    verticalScrollBar.setValue(verticalScrollBar.getMinimum());
    horizontalScrollBar.setValue(horizontalScrollBar.getMinimum());
}

From source file:com.commander4j.util.JUtility.java

public static void scrolltoHomePosition(JScrollPane jScrollPane1) {
    JScrollBar verticalScrollBar = jScrollPane1.getVerticalScrollBar();
    JScrollBar horizontalScrollBar = jScrollPane1.getHorizontalScrollBar();
    verticalScrollBar.setValue(verticalScrollBar.getMinimum());
    horizontalScrollBar.setValue(horizontalScrollBar.getMinimum());
}

From source file:EditorDropTarget4.java

public void autoscroll(Point location) {
    JScrollPane scroller = (JScrollPane) SwingUtilities.getAncestorOfClass(JScrollPane.class, this);
    if (scroller != null) {
        JScrollBar hBar = scroller.getHorizontalScrollBar();
        JScrollBar vBar = scroller.getVerticalScrollBar();
        Rectangle r = getVisibleRect();
        if (location.x <= r.x + scrollInsets.left) {
            // Need to scroll left
            hBar.setValue(hBar.getValue() - hBar.getUnitIncrement(-1));
        }//  www  . j  av  a  2  s .c  o  m
        if (location.y <= r.y + scrollInsets.top) {
            // Need to scroll up
            vBar.setValue(vBar.getValue() - vBar.getUnitIncrement(-1));
        }
        if (location.x >= r.x + r.width - scrollInsets.right) {
            // Need to scroll right
            hBar.setValue(hBar.getValue() + hBar.getUnitIncrement(1));
        }
        if (location.y >= r.y + r.height - scrollInsets.bottom) {
            // Need to scroll down
            vBar.setValue(vBar.getValue() + vBar.getUnitIncrement(1));
        }
    }
}

From source file:ca.uhn.hl7v2.testpanel.ui.ActivityDetailsCellRenderer.java

@Override
public Component getTableCellRendererComponent(final JTable theTable, Object theValue, boolean theIsSelected,
        boolean theHasFocus, final int theRow, int theColumn) {
    super.getTableCellRendererComponent(theTable, theValue, theIsSelected, theHasFocus, theRow, theColumn);

    if (theValue instanceof ActivityInfo) {

        renderInfo(theTable, theValue, theRow);

    } else if (theValue instanceof ActivityMessage) {

        renderMessage(theTable, theValue, theRow, theIsSelected);

    } else if (theValue instanceof ActivityBytesBase) {

        renderBytes(theTable, theValue, theRow);

    } else if (theValue instanceof ActivityValidationOutcome) {

        renderValidation(theTable, (ActivityValidationOutcome) theValue, theRow);

    }//from   w ww  .java  2 s  .co  m

    // int prefHeight = getPreferredSize().height;
    // prefHeight = Math.max(prefHeight, 10);
    // if (prefHeight != theTable.getRowHeight(theRow)) {
    // ourLog.trace("Setting height of row {} to {}", theRow, prefHeight);
    // theTable.setRowHeight(theRow, prefHeight);
    // }

    // EventQueue.invokeLater(new Runnable() {
    // public void run() {
    // int minWidth = getPreferredSize().width + 200;
    //
    // if (minWidth > theTable.getColumnModel().getColumn(2).getWidth()) {
    // theTable.getColumnModel().getColumn(2).setMinWidth(getPreferredSize().width);
    // theTable.getColumnModel().getColumn(2).setMaxWidth(getPreferredSize().width);
    // theTable.getColumnModel().getColumn(2).setPreferredWidth(getPreferredSize().width);
    // }
    // }});

    // ourLog.info("Rendering row {}", theRow);

    // EventQueue.invokeLater(new Runnable() {
    // public void run() {
    // getTablePanel().
    // JScrollBar vsb = myscrollPane.getVerticalScrollBar();
    // vsb.setValue(vsb.getMaximum());
    // ourLog.info("Setting scrollbar to bottom: {}", vsb.getMaximum());
    // }
    // });
    if (myScrollToBottom) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                JScrollBar vsb = getTablePanel().getScrollPane().getVerticalScrollBar();
                int newValue = vsb.getMaximum();
                int existingValue = vsb.getValue();
                if (newValue != existingValue) {
                    vsb.setValue(newValue);
                    ourLog.debug("Setting scrollbar to bottom, from {} to {}", existingValue, newValue);
                }

                if (theRow == getTablePanel().getTableModel().getRowCount() - 1) {
                    myScrollToBottom = false;
                }
            }
        });

    }

    return this;
}

From source file:net.sf.jabref.gui.maintable.MainTable.java

public void scrollTo(int y) {
    JScrollBar scb = pane.getVerticalScrollBar();
    scb.setValue(y * scb.getUnitIncrement(1));
}