Example usage for javax.swing BoundedRangeModel getExtent

Introduction

In this page you can find the example usage for javax.swing BoundedRangeModel getExtent.

Prototype

int getExtent();

Source Link

Document

Returns the model's extent, the length of the inner range that begins at the model's value.

Usage

From source file:Main.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Label Focus Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    JLabel label = new JLabel("Name: ");
    label.setDisplayedMnemonic(KeyEvent.VK_N);
    JTextField textField = new JTextField();
    label.setLabelFor(textField);/*from w  ww  . ja  va2s . c o m*/
    panel.add(label, BorderLayout.WEST);
    panel.add(textField, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    frame.setSize(250, 150);
    frame.setVisible(true);

    textField.setText("Loooooooooooooooooooooooooooooooooooooooooooooooooooooooong");
    BoundedRangeModel model = textField.getHorizontalVisibility();
    int extent = model.getExtent();
    textField.setScrollOffset(extent);
    System.out.println("extent:" + extent);

}

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From source file:MainClass.java

public static void main(final String args[]) {
    JFrame frame = new JFrame("Offset Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JPanel panel = new JPanel(new BorderLayout());
    final JTextField textField = new JTextField();
    panel.add(textField, BorderLayout.CENTER);
    frame.add(panel, BorderLayout.NORTH);
    JButton button = new JButton("Get Offset");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Offset: " + textField.getScrollOffset());
            System.out.println("Visibility: " + textField.getHorizontalVisibility());
            BoundedRangeModel model = textField.getHorizontalVisibility();
            int extent = model.getExtent();
            textField.setScrollOffset(extent);
        }//w  w  w.j a  va  2  s  . c  om
    };
    button.addActionListener(actionListener);
    frame.add(button, BorderLayout.SOUTH);
    frame.setSize(250, 150);
    frame.setVisible(true);

}

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From source file:OffsetSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Offset Example");
    Container content = frame.getContentPane();
    JPanel panel = new JPanel(new BorderLayout());
    JLabel label = new JLabel("Name: ");
    label.setDisplayedMnemonic(KeyEvent.VK_N);
    final JTextField textField = new JTextField();
    label.setLabelFor(textField);//ww  w  .  j a va  2s  . c  om
    panel.add(label, BorderLayout.WEST);
    panel.add(textField, BorderLayout.CENTER);
    content.add(panel, BorderLayout.NORTH);
    JButton button = new JButton("Get Offset");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Offset: " + textField.getScrollOffset());
            System.out.println("Visibility: " + textField.getHorizontalVisibility());
            BoundedRangeModel model = textField.getHorizontalVisibility();
            int extent = model.getExtent();
            textField.setScrollOffset(extent);
        }
    };
    button.addActionListener(actionListener);
    content.add(button, BorderLayout.SOUTH);
    frame.setSize(250, 150);
    frame.setVisible(true);
}

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From source file:de.unibayreuth.bayeos.goat.panels.timeseries.JPanelChart.java

public void stateChanged(ChangeEvent event) {
    try {/*from  w  ww  . j  a va2s.c o m*/
        Object src = event.getSource();
        BoundedRangeModel scrollBarModel = this.chartScrollBar.getModel();
        if (src == scrollBarModel) {
            int val = scrollBarModel.getValue();
            int ext = scrollBarModel.getExtent();

            Plot plot = this.chartPanel.getChart().getPlot();
            if (plot instanceof XYPlot) {
                XYPlot hvp = (XYPlot) plot;
                ValueAxis axis = hvp.getDomainAxis();

                // avoid problems
                this.chartPanel.getChart().removeChangeListener(this);

                axis.setRange(val / scrollFactor, (val + ext) / scrollFactor);

                // restore chart listener
                this.chartPanel.getChart().addChangeListener(this);
            }
        }
    } catch (Exception e) {
        MsgBox.error(e.getMessage());
    }
}

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From source file:apidemo.PanScrollZoomDemo.java

/**
 * Handles a {@link ChangeEvent} (in this case, coming from the scrollbar).
 * /*from   w ww  . j av  a  2  s  .c o m*/
 * @param event  the event.
 */
public void stateChanged(final ChangeEvent event) {
    try {
        final Object src = event.getSource();
        final BoundedRangeModel scrollBarModel = this.scrollBar.getModel();
        if (src == scrollBarModel) {
            final int val = scrollBarModel.getValue();
            final int ext = scrollBarModel.getExtent();

            final Plot plot = this.chartPanel.getChart().getPlot();
            if (plot instanceof XYPlot) {
                final XYPlot hvp = (XYPlot) plot;
                final ValueAxis axis = hvp.getDomainAxis();

                // avoid problems
                this.chartPanel.getChart().removeChangeListener(this);

                axis.setRange(val / this.scrollFactor, (val + ext) / this.scrollFactor);

                // restore chart listener
                this.chartPanel.getChart().addChangeListener(this);
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:net.java.sip.communicator.impl.gui.main.chat.ChatConversationPanel.java

/**
 * Overrides Component#setBounds(int, int, int, int) in order to determine
 * whether an automatic scroll of #chatTextPane to its bottom will be
 * necessary at a later time in order to keep its vertical scroll bar to its
 * bottom after the realization of the resize if it is at its bottom before
 * the resize./*from  www . j  a v a 2 s  . c o m*/
 */
@Override
public void setBounds(int x, int y, int width, int height) {
    synchronized (scrollToBottomRunnable) {
        JScrollBar verticalScrollBar = getVerticalScrollBar();

        if (verticalScrollBar != null) {
            BoundedRangeModel verticalScrollBarModel = verticalScrollBar.getModel();

            if ((verticalScrollBarModel.getValue()
                    + verticalScrollBarModel.getExtent() >= verticalScrollBarModel.getMaximum())
                    || !verticalScrollBar.isVisible())
                scrollToBottomIsPending = true;
        }
    }

    super.setBounds(x, y, width, height);
}

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