| /******************************************************************************* |
| * Copyright (c) 2005, 2007 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| * Bjorn Freeman-Benson - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.ui.pda.editor; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.model.IThread; |
| import org.eclipse.debug.core.model.IVariable; |
| import org.eclipse.debug.examples.core.pda.model.PDADebugTarget; |
| import org.eclipse.debug.examples.core.pda.model.PDAStackFrame; |
| import org.eclipse.debug.examples.core.pda.model.PDAThread; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextHover; |
| import org.eclipse.jface.text.ITextViewer; |
| |
| |
| /** |
| * Produces debug hover for the PDA debugger. |
| */ |
| public class TextHover implements ITextHover { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.ITextHover#getHoverInfo(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion) |
| */ |
| public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) { |
| String varName = null; |
| try { |
| varName = textViewer.getDocument().get(hoverRegion.getOffset(), hoverRegion.getLength()); |
| } catch (BadLocationException e) { |
| return null; |
| } |
| if (varName.startsWith("$") && varName.length() > 1) { |
| varName = varName.substring(1); |
| } |
| |
| PDAStackFrame frame = null; |
| IAdaptable debugContext = DebugUITools.getDebugContext(); |
| if (debugContext instanceof PDAStackFrame) { |
| frame = (PDAStackFrame) debugContext; |
| } else if (debugContext instanceof PDAThread) { |
| PDAThread thread = (PDAThread) debugContext; |
| try { |
| frame = (PDAStackFrame) thread.getTopStackFrame(); |
| } catch (DebugException e) { |
| return null; |
| } |
| } else if (debugContext instanceof PDADebugTarget) { |
| PDADebugTarget target = (PDADebugTarget) debugContext; |
| try { |
| IThread[] threads = target.getThreads(); |
| if (threads.length > 0) { |
| frame = (PDAStackFrame) threads[0].getTopStackFrame(); |
| } |
| } catch (DebugException e) { |
| return null; |
| } |
| } |
| if (frame != null) { |
| try { |
| IVariable[] variables = frame.getVariables(); |
| for (int i = 0; i < variables.length; i++) { |
| IVariable variable = variables[i]; |
| if (variable.getName().equals(varName)) { |
| return varName + " = " + variable.getValue().getValueString(); |
| } |
| } |
| } catch (DebugException e) { |
| } |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.ITextHover#getHoverRegion(org.eclipse.jface.text.ITextViewer, int) |
| */ |
| public IRegion getHoverRegion(ITextViewer textViewer, int offset) { |
| return WordFinder.findWord(textViewer.getDocument(), offset); |
| } |
| |
| } |