Example usage for javax.swing JList getMaxSelectionIndex

Introduction

In this page you can find the example usage for javax.swing JList getMaxSelectionIndex.

Prototype

@BeanProperty(bound = false)
public int getMaxSelectionIndex() 

Source Link

Document

Returns the largest selected cell index, or -1 if the selection is empty.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    String[] items = { "A", "B", "C", "D" };
    JList list = new JList(items);

    int lastSelIx = list.getMaxSelectionIndex();
}

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From source file:util.ui.UiUtilities.java

/**
 * Moves Selected Items from one List to another
 *
 * @param fromList/*  w  w  w .ja v a2  s .c om*/
 *          Move from this List
 * @param toList
 *          Move into this List
 * @return Moved Elements
 */
public static Object[] moveSelectedItems(JList fromList, JList toList) {
    DefaultListModel fromModel = (DefaultListModel) fromList.getModel();
    DefaultListModel toModel = (DefaultListModel) toList.getModel();

    // get the selection
    int[] selection = fromList.getSelectedIndices();

    if (selection.length == 0) {
        return new Object[] {};
    }

    Object[] objects = new Object[selection.length];
    for (int i = 0; i < selection.length; i++) {
        objects[i] = fromModel.getElementAt(selection[i]);
    }

    // get the target insertion position
    int targetPos = toList.getMaxSelectionIndex();
    if (targetPos == -1) {
        targetPos = toModel.getSize();
    } else {
        targetPos++;
    }

    // suppress updates on both lists
    if (selection.length >= 5) {
        fromList.setModel(new DefaultListModel());
        toList.setModel(new DefaultListModel());
    }

    // move the elements
    for (int i = selection.length - 1; i >= 0; i--) {
        Object value = fromModel.remove(selection[i]);
        toModel.add(targetPos, value);
    }

    if (selection.length >= 5) {
        fromList.setModel(fromModel);
        toList.setModel(toModel);
    }

    // change selection of the fromList
    if (fromModel.getSize() > 0) {
        int newSelection = selection[0];
        if (newSelection >= fromModel.getSize()) {
            newSelection = fromModel.getSize() - 1;
        }
        fromList.setSelectedIndex(newSelection);
    }

    if (selection.length >= 5) {
        fromList.repaint();
        fromList.revalidate();
        toList.repaint();
        toList.revalidate();
    }

    // change selection of the toList
    toList.setSelectionInterval(targetPos, targetPos + selection.length - 1);

    // ensure the selection is visible
    toList.ensureIndexIsVisible(toList.getMaxSelectionIndex());
    toList.ensureIndexIsVisible(toList.getMinSelectionIndex());

    return objects;
}

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From source file:util.ui.UiUtilities.java

/**
 * Moves Selected Items from one List to another
 *
 * @param fromList//from ww  w.j a v a  2  s. c  o  m
 *          Move from this List
 * @param toList
 *          Move into this List
 * @param row
 *          The target row where to insert
 * @return Moved Elements
 */
public static Object[] moveSelectedItems(JList fromList, JList toList, int row) {
    DefaultListModel fromModel = (DefaultListModel) fromList.getModel();
    DefaultListModel toModel = (DefaultListModel) toList.getModel();

    // get the selection
    int[] selection = fromList.getSelectedIndices();

    if (selection.length == 0) {
        return new Object[] {};
    }

    Object[] objects = new Object[selection.length];
    for (int i = 0; i < selection.length; i++) {
        objects[i] = fromModel.getElementAt(selection[i]);
    }

    // move the elements
    for (int i = selection.length - 1; i >= 0; i--) {
        Object value = fromModel.remove(selection[i]);
        toModel.insertElementAt(value, row);
    }

    // change selection of the fromList
    if (fromModel.getSize() > 0) {
        int newSelection = selection[0];
        if (newSelection >= fromModel.getSize()) {
            newSelection = fromModel.getSize() - 1;
        }
        // fromList.setSelectedIndex(-1);
    }

    // change selection of the toList
    toList.setSelectionInterval(row, row + selection.length - 1);

    // ensure the selection is visible
    toList.ensureIndexIsVisible(toList.getMaxSelectionIndex());
    toList.ensureIndexIsVisible(toList.getMinSelectionIndex());

    return objects;
}

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From source file:util.ui.UiUtilities.java

/**
 * Move selected Items in the JList/*from w w  w  . ja  v  a2 s  .  com*/
 *
 * @param list
 *          Move Items in this List
 * @param row
 *          The target row where to insert
 * @param sort
 *          Dummy parameter, does nothing
 */
public static void moveSelectedItems(JList list, int row, boolean sort) {
    DefaultListModel model = (DefaultListModel) list.getModel();

    // get the selection
    int[] selection = list.getSelectedIndices();
    if (selection.length == 0) {
        return;
    }

    boolean lower = false;
    // Remove the selected items
    Object[] items = new Object[selection.length];
    for (int i = selection.length - 1; i >= 0; i--) {
        if (selection[i] < row && !lower) {
            row = row - i - 1;
            lower = true;
        }
        items[i] = model.remove(selection[i]);
    }

    for (int i = items.length - 1; i >= 0; i--) {
        model.insertElementAt(items[i], row);
    }

    // change selection of the toList
    list.setSelectionInterval(row, row + selection.length - 1);

    // ensure the selection is visible
    list.ensureIndexIsVisible(list.getMaxSelectionIndex());
    list.ensureIndexIsVisible(list.getMinSelectionIndex());
}

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From source file:util.ui.UiUtilities.java

/**
 * Move selected Items in the JList//from  ww w  . jav a  2  s. c  o  m
 *
 * @param list
 *          Move Items in this List
 * @param nrRows
 *          Move Items nrRows up/down
 */
public static void moveSelectedItems(JList list, int nrRows) {
    DefaultListModel model = (DefaultListModel) list.getModel();

    // get the selection
    int[] selection = list.getSelectedIndices();
    if (selection.length == 0) {
        return;
    }

    // Remove the selected items
    Object[] items = new Object[selection.length];
    for (int i = selection.length - 1; i >= 0; i--) {
        items[i] = model.remove(selection[i]);
    }

    // insert the elements at the target position
    int targetPos = selection[0] + nrRows;
    targetPos = Math.max(targetPos, 0);
    targetPos = Math.min(targetPos, model.getSize());
    for (int i = 0; i < items.length; i++) {
        model.add(targetPos + i, items[i]);
    }

    // change selection of the toList
    list.setSelectionInterval(targetPos, targetPos + selection.length - 1);

    // ensure the selection is visible
    list.ensureIndexIsVisible(list.getMaxSelectionIndex());
    list.ensureIndexIsVisible(list.getMinSelectionIndex());
}

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