Example usage for java.util Collections swap

Introduction

In this page you can find the example usage for java.util Collections swap.

Prototype

private static void swap(Object[] arr, int i, int j) 

Source Link

Document

Swaps the two specified elements in the specified array.

Usage

From source file:hydrograph.ui.propertywindow.widgets.customwidgets.operational.OperationClassDialog.java

private void moveRowDown(TableViewer nameValueTableViewer) {
    Table table = nameValueTableViewer.getTable();
    int[] indexes = table.getSelectionIndices();
    for (int i = indexes.length - 1; i > -1; i--) {

        if (indexes[i] < mappingSheetRow.getNameValueProperty().size() - 1) {
            Collections.swap(mappingSheetRow.getNameValueProperty(), indexes[i], indexes[i] + 1);
            nameValueTableViewer.refresh();
            applyButton.setEnabled(true);

        }/*from w  w  w .ja v  a 2s  . c om*/
    }

}

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From source file:com.ubershy.streamsis.project.CuteProject.java

/**
 * Moves up the SisScene in CuteProject's list of SisScenes. <br>
 * Can be useful only for GUI./*from   w  ww.j  a  va2 s .c  o  m*/
 *
 * @param sisScene
 *            the SisScene to move
 */
public void moveUpSisScene(SisScene sisScene) {
    int index = sisScenes.indexOf(sisScene);
    if (index != 0)
        Collections.swap(sisScenes, index, index - 1);
}

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From source file:org.silverpeas.attachment.web.SimpleDocumentResource.java

/**
 * Moves the specified document down in the list.
 *
 * @return JSON status to true if the document was locked successfully - JSON status to false
 * otherwise../*  www.  j a v  a2s.  c o  m*/
 */
@PUT
@Path("moveDown")
@Produces(MediaType.APPLICATION_JSON)
public String moveSimpleDocumentDown() {
    SimpleDocument document = getSimpleDocument(defaultLanguage);
    List<SimpleDocument> docs = getListDocuments(document);
    int position = docs.indexOf(document);
    Collections.swap(docs, position, position + 1);
    String message = reorderDocuments(docs);
    return message;
}

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From source file:org.silverpeas.core.webapi.attachment.SimpleDocumentResource.java

private String moveSimpleDocument(boolean up) {
    SimpleDocument document = getSimpleDocument(defaultLanguage);
    List<SimpleDocument> docs = getListDocuments(document);
    int position = docs.indexOf(document);
    Collections.swap(docs, position, up ? (position - 1) : (position + 1));
    return reorderDocuments(docs);
}

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From source file:com.nextep.datadesigner.dbgm.gui.ColumnEditorGUI.java

/**
 * @see org.eclipse.swt.events.SelectionListener#widgetSelected(org.eclipse.swt.events.SelectionEvent)
 *//*from www  .j  a va 2 s . com*/
public void widgetSelected(SelectionEvent e) {
    IBasicTable t = (IBasicTable) getModel();
    // Ensuring we are allowed to modify our model
    t = VCSUIPlugin.getVersioningUIService().ensureModifiable(t);
    if (e.getSource() == group.getAddNewButton()) {
        getController().newInstance(getModel());
    } else if (e.getSource() == group.getUpButton()) {
        TableItem[] sel = group.getColumnsTable().getSelection();
        if (sel.length > 0) {
            IBasicColumn c = (IBasicColumn) sel[0].getData();
            int pos = c.getParent().getColumns().indexOf(c);
            if (pos > 0) {
                final IBasicColumn otherCol = c.getParent().getColumns().get(pos - 1);
                Collections.swap(c.getParent().getColumns(), pos, pos - 1);
                // Disposing to force recreation
                removeTableItem(c);
                // clean(group.getColumnsTable());
                refreshConnector();
                TableItem i = getTableItem(c);
                group.getColumnsTable().setFocus();
                group.getColumnsTable().setSelection(i);
                group.getUpButton().setFocus();
                c.setRank(pos - 1);
                otherCol.setRank(pos);
                CorePlugin.getIdentifiableDao().save(c.getParent());
            }
        }
    } else if (e.getSource() == group.getDownButton()) {
        TableItem[] sel = group.getColumnsTable().getSelection();
        if (sel.length > 0) {
            IBasicColumn c = (IBasicColumn) sel[0].getData();
            int pos = c.getParent().getColumns().indexOf(c);
            if (pos < c.getParent().getColumns().size() - 1) {
                final IBasicColumn otherCol = c.getParent().getColumns().get(pos + 1);
                Collections.swap(c.getParent().getColumns(), pos, pos + 1);
                // Disposing to force recreation
                removeTableItem(c);
                // clean(group.getColumnsTable());
                refreshConnector();
                TableItem i = getTableItem(c);
                group.getColumnsTable().setSelection(i);
                group.getDownButton().setFocus();
                c.setRank(pos + 1);
                otherCol.setRank(pos);
                CorePlugin.getIdentifiableDao().save(c.getParent());
            }
        }
    }

}

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From source file:org.jahia.test.services.render.filter.cache.base.CacheFilterHttpTest.java

static void permute(List<String> arr, int k, List<List<String>> res) {
    for (int i = k; i < arr.size(); i++) {
        Collections.swap(arr, i, k);
        permute(arr, k + 1, res);/* ww  w.jav  a 2 s.  co  m*/
        Collections.swap(arr, k, i);
    }
    if (k == arr.size() - 1) {
        res.add(new ArrayList<String>(arr));
    }
}

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From source file:io.plaidapp.ui.FeedAdapter.java

private void expandPopularItems() {
    // for now just expand the first dribbble image per page which should be
    // the most popular according to #sort.
    // TODO make this smarter & handle other item types
    List<Integer> expandedPositions = new ArrayList<>();
    int page = -1;
    final int count = items.size();
    for (int i = 0; i < count; i++) {
        PlaidItem item = getItem(i);/* w w  w  .j  ava 2s . c om*/
        if (item instanceof Shot && item.page > page) {
            item.colspan = columns;
            page = item.page;
            expandedPositions.add(i);
        } else {
            item.colspan = 1;
        }
    }

    // make sure that any expanded items are at the start of a row
    // so that we don't leave any gaps in the grid
    for (int expandedPos = 0; expandedPos < expandedPositions.size(); expandedPos++) {
        int pos = expandedPositions.get(expandedPos);
        int extraSpannedSpaces = expandedPos * (columns - 1);
        int rowPosition = (pos + extraSpannedSpaces) % columns;
        if (rowPosition != 0) {
            int swapWith = pos + (columns - rowPosition);
            if (swapWith < items.size()) {
                Collections.swap(items, pos, swapWith);
            }
        }
    }
}

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From source file:com.hannesdorfmann.FeedAdapter.java

private void expandPopularItems() {
    // for now just expand the first dribbble image per page which should be
    // the most popular according to #sort.
    // TODO make this smarter & handle other item types
    List<Integer> expandedPositions = new ArrayList<>();
    int page = -1;
    final int count = items.size();
    for (int i = 0; i < count; i++) {
        PlaidItem item = getItem(i);/*from  w ww.j  a  v a 2 s.  c o  m*/
        if (item instanceof Shot && item.page > page) {
            item.colspan = columns;
            page = item.page;
            expandedPositions.add(i);
        } else {
            item.colspan = 1;
        }
    }

    // make sure that any expanded items are at the start of a row
    // so that we don't leave any gaps in the grid
    for (int expandedPos = 0; expandedPos < expandedPositions.size(); expandedPos++) {
        int pos = expandedPositions.get(expandedPos);
        int extraSpannedSpaces = expandedPos * (columns - 1);
        int rowPosition = (pos + extraSpannedSpaces) % columns;
        if (rowPosition != 0) {
            int swapWith = pos + (columns - rowPosition);
            Collections.swap(items, pos, swapWith);
        }
    }
}

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From source file:com.github.chenxiaolong.dualbootpatcher.patcher.PatchFileFragment.java

/**
 * {@inheritDoc}// w  w  w . j a v a2 s.c  o m
 */
@Override
public void onItemMoved(int fromPosition, int toPosition) {
    // Update index map
    PatchFileItem fromItem = mItems.get(fromPosition);
    PatchFileItem toItem = mItems.get(toPosition);
    mItemsMap.put(fromItem.taskId, toPosition);
    mItemsMap.put(toItem.taskId, fromPosition);

    Collections.swap(mItems, fromPosition, toPosition);
    mAdapter.notifyItemMoved(fromPosition, toPosition);
}

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From source file:hydrograph.ui.propertywindow.widgets.dialogs.ELTOperationClassDialog.java

private void moveRowUp(TableViewer nameValueTableViewer) {

    Table table = nameValueTableViewer.getTable();
    int[] indexes = table.getSelectionIndices();
    for (int index : indexes) {

        if (index > 0) {
            Collections.swap(operationClassProperty.getNameValuePropertyList(), index, index - 1);
            nameValueTableViewer.refresh();
            applyButton.setEnabled(true);
        }/*from   w w  w.ja  va  2  s. c  o m*/
    }

}

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