/** Method for creating a list */
protected void createList(
int horizontalSpan, int verticalSpan, int widthHint, int numberOfItems) {
entityList = new List(shell, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.HORIZONTAL);
GridData gridData = new GridData(GridData.FILL, GridData.FILL, true, true);
gridData.verticalSpan = verticalSpan;
gridData.horizontalSpan = horizontalSpan;
gridData.heightHint = entityList.getItemHeight() * numberOfItems;
gridData.widthHint = widthHint;
entityList.setLayoutData(gridData);
}
private void computeShowArea() {
// Point size = getSize ();
int itemCount = list.getItemCount();
itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount);
int itemHeight = list.getItemHeight() * itemCount;
Point listSize = list.computeSize(SWT.DEFAULT, itemHeight, false);
// list.setBounds(1, 1, Math.min (size.x - 2, listSize.x), listSize.y);
int index = list.getSelectionIndex();
if (index != -1) list.setTopIndex(index);
Display display = getDisplay();
Rectangle listRect = list.getBounds();
Rectangle parentRect = display.map(getParent(), null, getBounds());
Point comboSize = getSize();
Rectangle displayRect = getMonitor().getClientArea();
int width = Math.max(comboSize.x, listRect.width + 2);
int height = listRect.height + 2;
int x = parentRect.x;
int y = parentRect.y + comboSize.y;
if (y + height > displayRect.y + displayRect.height) y = parentRect.y - height;
popup.setBounds(x, y, width - 15, listSize.y + 15);
}
@Override
public void reveal(Object element) {
Assert.isNotNull(element);
int index = getElementIndex(element);
if (index == -1) {
return;
}
// algorithm patterned after List.showSelection()
int count = list.getItemCount();
if (count == 0) {
return;
}
int height = list.getItemHeight();
Rectangle rect = list.getClientArea();
int topIndex = list.getTopIndex();
int visibleCount = Math.max(rect.height / height, 1);
int bottomIndex = Math.min(topIndex + visibleCount, count) - 1;
if ((topIndex <= index) && (index <= bottomIndex)) {
return;
}
int newTop = Math.min(Math.max(index - (visibleCount / 2), 0), count - 1);
list.setTopIndex(newTop);
}
public int getItemHeight() {
checkWidget();
return list.getItemHeight();
}
/**
* Creates the filtering list widgets
*
* @param ancestor the ancestor
*/
private void createFilterLists(Composite ancestor) {
// Do not show the filter lists if not filter criteria
// is defined.
if (filterStrings.length == 0) return;
// setup layout
Composite parent = new Composite(ancestor, SWT.NULL);
Composite dummy = new Composite(ancestor, SWT.NULL);
GridData dgd = new GridData();
dgd.widthHint = 0;
dummy.setLayoutData(dgd);
GridLayout layout = new GridLayout();
layout.marginHeight = 0;
layout.marginWidth = 0;
layout.numColumns = 3;
parent.setLayout(layout);
// Create the possible filter items list
Label filterItemsLabel = new Label(parent, SWT.LEFT);
filterItemsLabel.setText(FILTER_ITEMS_CONTAINING);
GridData gd = new GridData();
gd.horizontalAlignment = GridData.HORIZONTAL_ALIGN_BEGINNING;
filterItemsLabel.setLayoutData(gd);
// Create the possible filter items list
// Label emptyLabel =
new Label(parent, SWT.LEFT);
// Create the possible filter items list
Label filterItemLabel = new Label(parent, SWT.LEFT);
filterItemLabel.setText(FILTER_ITEMS_LIST);
GridData gd2 = new GridData();
gd2.horizontalAlignment = GridData.BEGINNING;
filterItemLabel.setLayoutData(gd2);
// Create the possible filter items list
filters = new org.eclipse.swt.widgets.List(parent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);
GridData gridData = new GridData(GridData.VERTICAL_ALIGN_FILL);
gridData.verticalSpan = 1;
gridData.widthHint = 80;
int listHeight = filters.getItemHeight() * LIST_HEIGHT;
Rectangle trim = filters.computeTrim(0, 0, 0, listHeight);
gridData.heightHint = trim.height;
filters.setLayoutData(gridData);
// Create a new composite for the buttons and add
// stack them vertically
Composite buttonComposite = new Composite(parent, SWT.NULL);
GridLayout buttonLayout = new GridLayout();
buttonLayout.marginHeight = 0;
buttonLayout.marginWidth = 0;
buttonLayout.numColumns = 1;
buttonComposite.setLayout(buttonLayout);
GridData buttGD = new GridData(GridData.FILL_VERTICAL | GridData.CENTER);
buttGD.horizontalSpan = 1;
buttGD.widthHint = 30;
buttonComposite.setLayoutData(buttGD);
removeFrom = new Button(buttonComposite, SWT.PUSH);
removeFrom.setText(REMOVE_FROM_LABEL);
removeFrom.setToolTipText(REMOVE_FROM);
removeFrom.setLayoutData(makeArrowButtonGridData(removeFrom));
removeFrom.setData(new Integer(REMOVE_FROM_ID));
removeFrom.addSelectionListener(buttonSelectionAdapter);
removeFrom.setEnabled(false);
addTo = new Button(buttonComposite, SWT.PUSH);
addTo.setText(ADD_TO_LABEL);
addTo.setToolTipText(ADD_TO);
addTo.setLayoutData(makeArrowButtonGridData(addTo));
addTo.setData(new Integer(ADD_TO_ID));
addTo.addSelectionListener(buttonSelectionAdapter);
addTo.setEnabled(false);
removeAllFrom = new Button(buttonComposite, SWT.PUSH);
removeAllFrom.setText(REMOVE_ALL_LABEL);
removeAllFrom.setToolTipText(REMOVE_ALL);
removeAllFrom.setLayoutData(makeArrowButtonGridData(removeAllFrom));
removeAllFrom.setData(new Integer(REMOVE_ALL_FROM_ID));
removeAllFrom.addSelectionListener(buttonSelectionAdapter);
addAllTo = new Button(buttonComposite, SWT.PUSH);
addAllTo.setText(ADD_ALL_LABEL);
addAllTo.setToolTipText(ADD_ALL);
addAllTo.setLayoutData(makeArrowButtonGridData(addAllTo));
addAllTo.setData(Integer.valueOf(ADD_ALL_TO_ID));
addAllTo.addSelectionListener(buttonSelectionAdapter);
// Add the possible list of filter items
this.filterList =
new org.eclipse.swt.widgets.List(parent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);
GridData gridData2 = new GridData(GridData.VERTICAL_ALIGN_FILL);
gridData2.verticalSpan = 1;
gridData2.widthHint = 80;
int listHeight2 = filterList.getItemHeight() * LIST_HEIGHT;
Rectangle trim2 = filterList.computeTrim(0, 0, 0, listHeight2);
gridData.heightHint = trim2.height;
filterList.setLayoutData(gridData2);
filters.addListener(
SWT.Selection,
new Listener() {
public void handleEvent(Event e) {
removeFrom.setEnabled(filters.getSelectionCount() > 0);
}
});
filterList.addListener(
SWT.Selection,
new Listener() {
public void handleEvent(Event e) {
addTo.setEnabled(filterList.getSelectionCount() > 0);
}
});
populateFilterLists();
}
