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Add Sorting Functionality for Quick Search Results #3012

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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.Deque;
import java.util.LinkedList;
import java.util.List;
Expand Down Expand Up @@ -840,19 +841,47 @@ public void getName(AccessibleEvent e) {
// new ScrollListener(list.getTable().getVerticalBar());
// new SelectionChangedListener(list);

final int[] sortColumnIndex = {-1};
final boolean[] sortDirectionAscending = {true};
Table table = list.getTable();
TableViewerColumn col = new TableViewerColumn(list, SWT.RIGHT);
TableColumn column = col.getColumn();
column.setText(Messages.QuickSearchDialog_line);
column.setWidth(40);
column.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
Comparator<LineItem> lineNumberComparator = Comparator.comparingInt(LineItem::getLineNumber);
handleColumnSort( table, 0, lineNumberComparator, sortColumnIndex, sortDirectionAscending);
}
});
col.setLabelProvider(LINE_NUMBER_LABEL_PROVIDER);
col.getColumn().setText(Messages.QuickSearchDialog_line);
col.getColumn().setWidth(40);

col = new TableViewerColumn(list, SWT.LEFT);
col.getColumn().setText(Messages.QuickSearchDialog_text);
column = col.getColumn();
column.setText(Messages.QuickSearchDialog_text);
column.setWidth(400);
column.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
Comparator<LineItem> textComparator = Comparator.comparing( LineItem::getText);
handleColumnSort( table, 1, textComparator, sortColumnIndex, sortDirectionAscending);
}
});
col.setLabelProvider(LINE_TEXT_LABEL_PROVIDER);
col.getColumn().setWidth(400);

col = new TableViewerColumn(list, SWT.LEFT);
col.getColumn().setText(Messages.QuickSearchDialog_path);
column = col.getColumn();
column.setText(Messages.QuickSearchDialog_path);
column.setWidth(150);
column.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
Comparator<LineItem> lineItemComparator = Comparator.comparing( item -> item.getFile().getFullPath().toString());
handleColumnSort( table, 2,lineItemComparator, sortColumnIndex, sortDirectionAscending);
}
});
col.setLabelProvider(LINE_FILE_LABEL_PROVIDER);
col.getColumn().setWidth(150);

new TableResizeHelper(list).enableResizing();

//list.setLabelProvider(getItemsListLabelProvider());
Expand Down Expand Up @@ -951,6 +980,26 @@ public void keyPressed(KeyEvent e) {
return dialogArea;
}

private void handleColumnSort(Table table, int columnIndex, Comparator sorter,int[] sortColumnIndex, boolean[] sortDirectionAscending) {
if (sortColumnIndex[0] == columnIndex) {
sortDirectionAscending[0] = !sortDirectionAscending[0];
} else {
sortColumnIndex[0] = columnIndex;
sortDirectionAscending[0] = true;
}
table.setSortColumn(table.getColumn(columnIndex));
table.setSortDirection(sortDirectionAscending[0] ? SWT.UP : SWT.DOWN);

if(sortDirectionAscending[0]) {
contentProvider.setComparator(sorter);
contentProvider.sortList();
} else {
contentProvider.setComparator(sorter.reversed());
contentProvider.sortList();
}
refreshWidgets();
}

private Composite createNestedComposite(Composite parent, int numRows, boolean equalRows) {
Composite nested = new Composite(parent, SWT.NONE);
{
Expand Down Expand Up @@ -1227,6 +1276,7 @@ protected IDialogSettings getDialogSettings() {
public void refreshWidgets() {
if (list != null && !list.getTable().isDisposed()) {
int itemCount = contentProvider.getNumberOfElements();
contentProvider.sortList();
list.setItemCount(itemCount);
if (itemCount < MAX_RESULTS) {
listLabel.setText(NLS.bind(Messages.QuickSearchDialog_listLabel, itemCount));
Expand Down Expand Up @@ -1468,7 +1518,7 @@ private void applyPathMatcher() {
private class ContentProvider implements IStructuredContentProvider, ILazyContentProvider {

private List items;

private Comparator<LineItem> comparator;
/**
* Creates new instance of <code>ContentProvider</code>.
*/
Expand Down Expand Up @@ -1511,6 +1561,9 @@ public void refresh() {
*/
@Override
public Object[] getElements(Object inputElement) {
if(comparator!=null) {
items.sort(comparator);
}
return items.toArray();
}

Expand Down Expand Up @@ -1551,6 +1604,25 @@ public void updateElement(int index) {

}

/**
* Sorts the current search results based on current comparator
*/
public void sortList() {
if(comparator==null) {
return;
}
items.sort(comparator);
}

/**
* Sets a custom comparator for comparing LineItem objects.
*
* @param comparator a <code>Comparator<code> object that defines the custom comparison logic.
*/
public void setComparator(Comparator<LineItem> comparator) {
this.comparator = comparator;
}

}

/**
Expand Down