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/*******************************************************************************
* Copyright (c) 2007, 2018 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.viewers;
import java.text.NumberFormat;
import java.util.HashMap;
import org.eclipse.core.runtime.*;
import org.eclipse.core.runtime.jobs.*;
import org.eclipse.equinox.internal.p2.ui.*;
import org.eclipse.equinox.internal.p2.ui.model.IIUElement;
import org.eclipse.equinox.internal.p2.ui.model.ProvElement;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
import org.eclipse.jface.viewers.*;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.dialogs.FilteredTree;
/**
* Label provider for showing IU's in a table. Clients can configure
* what is shown in each column.
*
* @since 3.4
*/
public class IUDetailsLabelProvider extends ColumnLabelProvider implements ITableLabelProvider, IFontProvider {
final static int PRIMARY_COLUMN = 0;
final static String BLANK = ""; //$NON-NLS-1$
private String toolTipProperty = null;
private FilteredTree filteredTree;
private boolean useBoldFont = false;
private boolean showingId = false;
private IUColumnConfig[] columnConfig;
Shell shell;
HashMap<IIUElement, Job> jobs = new HashMap<>();
public IUDetailsLabelProvider() {
this(null, null, null);
}
public IUDetailsLabelProvider(FilteredTree filteredTree, IUColumnConfig[] columnConfig, Shell shell) {
this.filteredTree = filteredTree;
if (columnConfig == null)
this.columnConfig = ProvUI.getIUColumnConfig();
else
this.columnConfig = columnConfig;
for (IUColumnConfig config : this.columnConfig)
if (config.getColumnType() == IUColumnConfig.COLUMN_ID) {
showingId = true;
break;
}
this.shell = shell;
}
@Override
public String getText(Object obj) {
return getColumnText(obj, PRIMARY_COLUMN);
}
@Override
public Image getImage(Object obj) {
return getColumnImage(obj, PRIMARY_COLUMN);
}
@Override
public String getColumnText(Object element, int columnIndex) {
int columnContent = IUColumnConfig.COLUMN_ID;
if (columnIndex < columnConfig.length) {
columnContent = columnConfig[columnIndex].getColumnType();
}
IInstallableUnit iu = ProvUI.getAdapter(element, IInstallableUnit.class);
if (iu == null) {
if (columnIndex == 0) {
if (element instanceof ProvElement)
return ((ProvElement) element).getLabel(element);
return element.toString();
}
return BLANK;
}
switch (columnContent) {
case IUColumnConfig.COLUMN_ID :
return iu.getId();
case IUColumnConfig.COLUMN_NAME :
// Get the iu name in the current locale
String name = iu.getProperty(IInstallableUnit.PROP_NAME, null);
if (name != null)
return name;
// If the iu name is not available, we return blank if we know know we are
// showing id in another column. Otherwise we return id so the user doesn't
// see blank iu's.
if (showingId)
return BLANK;
return iu.getId();
case IUColumnConfig.COLUMN_DESCRIPTION :
// Get the iu description in the current locale
String description = iu.getProperty(IInstallableUnit.PROP_DESCRIPTION, null);
if (description != null)
return description;
return BLANK;
case IUColumnConfig.COLUMN_VERSION :
// If it's an element, determine if version should be shown
if (element instanceof IIUElement) {
if (((IIUElement) element).shouldShowVersion())
return iu.getVersion().toString();
return BLANK;
}
// It's a raw IU, return the version
return iu.getVersion().toString();
case IUColumnConfig.COLUMN_PROVIDER :
return iu.getProperty(IInstallableUnit.PROP_PROVIDER, null);
case IUColumnConfig.COLUMN_SIZE :
if (element instanceof IIUElement && ((IIUElement) element).shouldShowSize())
return getIUSize((IIUElement) element);
return BLANK;
}
return BLANK;
}
@Override
public Image getColumnImage(Object element, int index) {
if (index == PRIMARY_COLUMN) {
if (element instanceof ProvElement)
return ((ProvElement) element).getImage(element);
if (ProvUI.getAdapter(element, IInstallableUnit.class) != null)
return ProvUIImages.getImage(ProvUIImages.IMG_IU);
}
return null;
}
private String getIUSize(final IIUElement element) {
long size = element.getSize();
// If size is already known, or we already tried
// to get it, don't try again
if (size != ProvUI.SIZE_UNKNOWN)
return getFormattedSize(size);
if (!jobs.containsKey(element)) {
Job resolveJob = new Job(element.getIU().getId()) {
@Override
protected IStatus run(IProgressMonitor monitor) {
if (monitor.isCanceled())
return Status.CANCEL_STATUS;
if (shell == null || shell.isDisposed())
return Status.CANCEL_STATUS;
element.computeSize(monitor);
if (monitor.isCanceled())
return Status.CANCEL_STATUS;
// If we still could not compute size, give up
if (element.getSize() == ProvUI.SIZE_UNKNOWN)
return Status.OK_STATUS;
if (shell == null || shell.isDisposed())
return Status.CANCEL_STATUS;
shell.getDisplay().asyncExec(() -> {
if (shell != null && !shell.isDisposed())
fireLabelProviderChanged(new LabelProviderChangedEvent(IUDetailsLabelProvider.this, element));
});
return Status.OK_STATUS;
}
};
jobs.put(element, resolveJob);
resolveJob.setSystem(true);
resolveJob.addJobChangeListener(new JobChangeAdapter() {
@Override
public void done(IJobChangeEvent event) {
jobs.remove(element);
}
});
resolveJob.schedule();
}
return ProvUIMessages.IUDetailsLabelProvider_ComputingSize;
}
private String getFormattedSize(long size) {
if (size == ProvUI.SIZE_UNKNOWN || size == ProvUI.SIZE_UNAVAILABLE)
return ProvUIMessages.IUDetailsLabelProvider_Unknown;
if (size > 1000L) {
long kb = size / 1000L;
return NLS.bind(ProvUIMessages.IUDetailsLabelProvider_KB, NumberFormat.getInstance().format(Long.valueOf(kb)));
}
return NLS.bind(ProvUIMessages.IUDetailsLabelProvider_Bytes, NumberFormat.getInstance().format(Long.valueOf(size)));
}
public void setToolTipProperty(String propertyName) {
toolTipProperty = propertyName;
}
public String getClipboardText(Object element, String columnDelimiter) {
StringBuffer result = new StringBuffer();
for (int i = 0; i < columnConfig.length; i++) {
if (i != 0)
result.append(columnDelimiter);
result.append(getColumnText(element, i));
}
return result.toString();
}
public void setUseBoldFontForFilteredItems(boolean useBoldFont) {
this.useBoldFont = useBoldFont;
}
@Override
public String getToolTipText(Object element) {
IInstallableUnit iu = ProvUI.getAdapter(element, IInstallableUnit.class);
if (iu == null || toolTipProperty == null)
return null;
return iu.getProperty(toolTipProperty, null);
}
@Override
public Font getFont(Object element) {
if (filteredTree != null && useBoldFont) {
return FilteredTree.getBoldFont(element, filteredTree, filteredTree.getPatternFilter());
}
return null;
}
@Override
public void dispose() {
super.dispose();
for (Job job : jobs.values())
job.cancel();
}
}
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