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/*******************************************************************************
* Copyright (c) 2010 BSI Business Systems Integration AG.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* BSI Business Systems Integration AG - initial API and implementation
******************************************************************************/
package org.eclipse.scout.rt.ui.swt.basic.table;
import java.util.HashMap;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.jface.util.SafeRunnable;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableFontProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProviderChangedEvent;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.scout.commons.StringUtility;
import org.eclipse.scout.rt.client.ui.basic.cell.ICell;
import org.eclipse.scout.rt.client.ui.basic.table.ITable;
import org.eclipse.scout.rt.client.ui.basic.table.ITableRow;
import org.eclipse.scout.rt.client.ui.basic.table.columns.IColumn;
import org.eclipse.scout.rt.shared.AbstractIcons;
import org.eclipse.scout.rt.ui.swt.ISwtEnvironment;
import org.eclipse.scout.rt.ui.swt.extension.UiDecorationExtensionPoint;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
public class SwtScoutTableModel implements IStructuredContentProvider, ITableColorProvider, ITableLabelProvider, ITableFontProvider {
private transient ListenerList listenerList = null;
private final ITable m_table;
private final ISwtEnvironment m_environment;
private HashMap<ITableRow, HashMap<IColumn<?>, ICell>> m_cachedCells;
private final SwtScoutTable m_swtTable;
private final TableColumnManager m_columnManager;
private Image m_imgCheckboxFalse;
private Image m_imgCheckboxTrue;
private Color m_disabledForegroundColor;
private boolean m_multiline;
public SwtScoutTableModel(ITable table, SwtScoutTable swtTable, ISwtEnvironment environment, TableColumnManager columnManager) {
m_table = table;
m_swtTable = swtTable;
m_environment = environment;
m_columnManager = columnManager;
m_imgCheckboxTrue = m_environment.getIcon(AbstractIcons.CheckboxYes);
m_imgCheckboxFalse = m_environment.getIcon(AbstractIcons.CheckboxNo);
m_disabledForegroundColor = m_environment.getColor(UiDecorationExtensionPoint.getLookAndFeel().getColorForegroundDiabled());
rebuildCache();
}
public void setMultiline(boolean multiline) {
m_multiline = multiline;
}
public boolean isMultiline() {
return m_multiline;
}
public Object[] getElements(Object inputElement) {
if (m_table != null) {
return m_table.getFilteredRows();
}
else {
return new Object[0];
}
}
public Color getBackground(Object element, int columnIndex) {
if (columnIndex > 0) {
return m_environment.getColor(getCell(element, columnIndex).getBackgroundColor());
}
return null;
}
public Color getForeground(Object element, int columnIndex) {
if (columnIndex > 0) {
ITableRow scoutRow = (ITableRow) element;
ICell scoutCell = getCell(element, columnIndex);
Color col = m_environment.getColor(scoutCell.getForegroundColor());
if (col == null) {
if (!scoutRow.isEnabled() || !scoutCell.isEnabled()) {
col = m_disabledForegroundColor;
}
}
return col;
}
return null;
}
public Image getColumnImage(Object element, int columnIndex) {
int[] columnOrder = m_swtTable.getSwtField().getColumnOrder();
if (columnOrder.length > 1) {
IColumn col = m_columnManager.getColumnByModelIndex(columnIndex - 1);
if (columnOrder[1] == columnIndex && m_swtTable.getScoutObject() != null && m_swtTable.getScoutObject().isCheckable()) {
if (((ITableRow) element).isChecked()) {
return m_imgCheckboxTrue;
}
else {
return m_imgCheckboxFalse;
}
}
ICell cell = getCell(element, columnIndex);
if (col != null && cell != null && col.getDataType() == Boolean.class) {
Boolean b = (Boolean) cell.getValue();
if (b != null && b.booleanValue()) {
return m_imgCheckboxTrue;
}
else {
return m_imgCheckboxFalse;
}
}
String iconId = null;
if (cell != null && cell.getIconId() != null) {
iconId = cell.getIconId();
}
else if (columnOrder[1] == columnIndex) {
ITableRow row = (ITableRow) element;
iconId = row.getIconId();
}
return m_environment.getIcon(iconId);
}
return null;
}
public String getColumnText(Object element, int columnIndex) {
if (columnIndex > 0) {
String text = getCell(element, columnIndex).getText();
if (!isMultiline()) {
text = StringUtility.replace(text, "\n", " ");
}
return text;
}
return "";
}
public Font getFont(Object element, int columnIndex) {
if (columnIndex > 0) {
return m_environment.getFont(getCell(element, columnIndex).getFont(), m_swtTable.getSwtField().getFont());
}
return null;
}
public boolean isLabelProperty(Object element, String property) {
return false;
}
public void addListener(ILabelProviderListener listener) {
if (listenerList == null) {
listenerList = new ListenerList(ListenerList.IDENTITY);
}
listenerList.add(listener);
}
public void removeListener(ILabelProviderListener listener) {
if (listenerList != null) {
listenerList.remove(listener);
if (listenerList.isEmpty()) {
listenerList = null;
}
}
}
private Object[] getListeners() {
final ListenerList list = listenerList;
if (list == null) {
return new Object[0];
}
return list.getListeners();
}
public void dispose() {
if (listenerList != null) {
listenerList.clear();
}
}
protected void fireLabelProviderChanged(final LabelProviderChangedEvent event) {
Object[] listeners = getListeners();
for (int i = 0; i < listeners.length; ++i) {
final ILabelProviderListener l = (ILabelProviderListener) listeners[i];
SafeRunnable.run(new SafeRunnable() {
public void run() {
l.labelProviderChanged(event);
}
});
}
}
public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
}
public void consumeTableModelEvent(SwtScoutTableEvent swtTableEvent) {
rebuildCache();
}
protected ICell getCell(Object row, int colIndex) {
IColumn<?> column = m_columnManager.getColumnByModelIndex(colIndex - 1);
if (column != null) {
if (m_cachedCells.get(row) == null) {
rebuildCache();
}
return m_cachedCells.get(row).get(column);
}
else {
return null;
}
}
private void rebuildCache() {
m_cachedCells = new HashMap<ITableRow, HashMap<IColumn<?>, ICell>>();
if (m_table != null) {
for (ITableRow scoutRow : m_table.getRows()) {
HashMap<IColumn<?>, ICell> cells = new HashMap<IColumn<?>, ICell>();
for (IColumn<?> col : m_table.getColumnSet().getVisibleColumns()) {
cells.put(col, m_table.getCell(scoutRow, col));
}
m_cachedCells.put(scoutRow, cells);
}
}
}
public SwtScoutTable getSwtScoutTable() {
return m_swtTable;
}
}
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