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/*******************************************************************************
* Copyright (c) 2008, 2011 Wind River Systems, Inc. and others.
* 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.internal.tcf.debug.ui.model;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import org.eclipse.debug.ui.IDetailPane;
import org.eclipse.jface.text.Document;
import org.eclipse.jface.text.ITextPresentationListener;
import org.eclipse.jface.text.TextPresentation;
import org.eclipse.jface.text.source.SourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.tm.tcf.protocol.Protocol;
import org.eclipse.ui.IWorkbenchPartSite;
/**
* This detail pane uses a source viewer to display detailed information about the current
* selection.
*/
public class TCFDetailPane implements IDetailPane {
public static final String ID = "org.eclipse.tm.tcf.debug.DetailPaneFactory";
public static final String NAME = "TCF Detail Pane";
public static final String DESC = "TCF Detail Pane";
private SourceViewer source_viewer;
private Display display;
private int generation;
@SuppressWarnings("unused")
private IWorkbenchPartSite part_site;
private final Document document = new Document();
private final ArrayList<StyleRange> style_ranges = new ArrayList<StyleRange>();
private final HashMap<RGB,Color> colors = new HashMap<RGB,Color>();
private final ITextPresentationListener presentation_listener = new ITextPresentationListener() {
public void applyTextPresentation(TextPresentation presentation) {
for (StyleRange r : style_ranges) presentation.addStyleRange(r);
}
};
public Control createControl(Composite parent) {
assert source_viewer == null;
source_viewer = new SourceViewer(parent, null, SWT.V_SCROLL | SWT.H_SCROLL);
source_viewer.configure(new SourceViewerConfiguration());
source_viewer.setDocument(document);
source_viewer.setEditable(false);
source_viewer.addTextPresentationListener(presentation_listener);
Control control = source_viewer.getControl();
GridData gd = new GridData(GridData.FILL_BOTH);
control.setLayoutData(gd);
display = control.getDisplay();
return control;
}
public void display(IStructuredSelection selection) {
if (source_viewer == null) return;
generation++;
final int g = generation;
final ArrayList<TCFNode> nodes = new ArrayList<TCFNode>();
if (selection != null) {
Iterator<?> iterator = selection.iterator();
while (iterator.hasNext()) {
Object next = iterator.next();
if (next instanceof TCFNode) nodes.add((TCFNode)next);
}
}
Protocol.invokeLater(new Runnable() {
public void run() {
if (g != generation) return;
final StyledStringBuffer s = getDetailText(nodes, this);
if (s == null) return;
display.asyncExec(new Runnable() {
public void run() {
if (g != generation) return;
document.set(getStyleRanges(s));
}
});
}
});
}
private StyledStringBuffer getDetailText(ArrayList<TCFNode> nodes, Runnable done) {
StyledStringBuffer bf = new StyledStringBuffer();
for (TCFNode n : nodes) {
if (n instanceof IDetailsProvider) {
if (!((IDetailsProvider)n).getDetailText(bf, done)) return null;
}
}
return bf;
}
private String getStyleRanges(StyledStringBuffer s) {
style_ranges.clear();
for (StyledStringBuffer.Style x : s.getStyle()) {
style_ranges.add(new StyleRange(x.pos, x.len, getColor(x.fg), getColor(x.bg), x.font));
}
return s.toString();
}
private Color getColor(RGB rgb) {
if (rgb == null) return null;
Color c = colors.get(rgb);
if (c == null) colors.put(rgb, c = new Color(display, rgb));
return c;
}
public void dispose() {
for (Color c : colors.values()) c.dispose();
colors.clear();
if (source_viewer == null) return;
generation++;
if (source_viewer.getControl() != null) {
source_viewer.getControl().dispose();
}
source_viewer = null;
}
public String getDescription() {
return DESC;
}
public String getID() {
return ID;
}
public String getName() {
return NAME;
}
public void init(IWorkbenchPartSite part_site) {
this.part_site = part_site;
}
public boolean setFocus() {
if (source_viewer == null) return false;
source_viewer.getTextWidget().setFocus();
return true;
}
}
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