diff options
Diffstat (limited to 'dsf/org.eclipse.cdt.examples.dsf.pda.ui/src/org/eclipse/cdt/examples/dsf/pda/ui/breakpoints/PDABreakpointAdapter.java')
| -rw-r--r-- | dsf/org.eclipse.cdt.examples.dsf.pda.ui/src/org/eclipse/cdt/examples/dsf/pda/ui/breakpoints/PDABreakpointAdapter.java | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/dsf/org.eclipse.cdt.examples.dsf.pda.ui/src/org/eclipse/cdt/examples/dsf/pda/ui/breakpoints/PDABreakpointAdapter.java b/dsf/org.eclipse.cdt.examples.dsf.pda.ui/src/org/eclipse/cdt/examples/dsf/pda/ui/breakpoints/PDABreakpointAdapter.java new file mode 100644 index 00000000000..806e87bd88b --- /dev/null +++ b/dsf/org.eclipse.cdt.examples.dsf.pda.ui/src/org/eclipse/cdt/examples/dsf/pda/ui/breakpoints/PDABreakpointAdapter.java @@ -0,0 +1,225 @@ +/******************************************************************************* + * Copyright (c) 2005, 2008 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 + * Wind River Systems - adopted to use with DSF + *******************************************************************************/ +package org.eclipse.cdt.examples.dsf.pda.ui.breakpoints; + +import org.eclipse.cdt.examples.dsf.pda.PDAPlugin; +import org.eclipse.cdt.examples.dsf.pda.breakpoints.PDALineBreakpoint; +import org.eclipse.cdt.examples.dsf.pda.breakpoints.PDAWatchpoint; +import org.eclipse.core.resources.IResource; +import org.eclipse.core.runtime.CoreException; +import org.eclipse.debug.core.DebugPlugin; +import org.eclipse.debug.core.model.IBreakpoint; +import org.eclipse.debug.core.model.ILineBreakpoint; +import org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension; +import org.eclipse.jface.text.BadLocationException; +import org.eclipse.jface.text.IDocument; +import org.eclipse.jface.text.IRegion; +import org.eclipse.jface.text.ITextSelection; +import org.eclipse.jface.viewers.ISelection; +import org.eclipse.ui.IWorkbenchPart; +import org.eclipse.ui.texteditor.IDocumentProvider; +import org.eclipse.ui.texteditor.ITextEditor; + + +/** + * Adapter to create breakpoints in PDA files. + * <p> + * This class is identical to the corresponding in PDA debugger implemented in + * org.eclipse.debug.examples.ui. + * </p> + */ +public class PDABreakpointAdapter implements IToggleBreakpointsTargetExtension { + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleLineBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public void toggleLineBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { + ITextEditor textEditor = getEditor(part); + if (textEditor != null) { + IResource resource = (IResource) textEditor.getEditorInput().getAdapter(IResource.class); + ITextSelection textSelection = (ITextSelection) selection; + int lineNumber = textSelection.getStartLine(); + IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints(PDAPlugin.ID_PDA_DEBUG_MODEL); + for (int i = 0; i < breakpoints.length; i++) { + IBreakpoint breakpoint = breakpoints[i]; + if (breakpoint instanceof ILineBreakpoint && resource.equals(breakpoint.getMarker().getResource())) { + if (((ILineBreakpoint)breakpoint).getLineNumber() == (lineNumber + 1)) { + // remove + breakpoint.delete(); + return; + } + } + } + // create line breakpoint (doc line numbers start at 0) + PDALineBreakpoint lineBreakpoint = new PDALineBreakpoint(resource, lineNumber + 1); + DebugPlugin.getDefault().getBreakpointManager().addBreakpoint(lineBreakpoint); + } + } + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleLineBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public boolean canToggleLineBreakpoints(IWorkbenchPart part, ISelection selection) { + return getEditor(part) != null; + } + + /** + * Returns the editor being used to edit a PDA file, associated with the + * given part, or <code>null</code> if none. + * + * @param part workbench part + * @return the editor being used to edit a PDA file, associated with the + * given part, or <code>null</code> if none + */ + private ITextEditor getEditor(IWorkbenchPart part) { + if (part instanceof ITextEditor) { + ITextEditor editorPart = (ITextEditor) part; + IResource resource = (IResource) editorPart.getEditorInput().getAdapter(IResource.class); + if (resource != null) { + String extension = resource.getFileExtension(); + if (extension != null && extension.equals("pda")) { + return editorPart; + } + } + } + return null; + } + + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public void toggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { + } + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleMethodBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public boolean canToggleMethodBreakpoints(IWorkbenchPart part, ISelection selection) { + return false; + } + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#toggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public void toggleWatchpoints(IWorkbenchPart part, ISelection selection) throws CoreException { + String[] variableAndFunctionName = getVariableAndFunctionName(part, selection); + if (variableAndFunctionName != null && part instanceof ITextEditor && selection instanceof ITextSelection) { + ITextEditor editorPart = (ITextEditor)part; + int lineNumber = ((ITextSelection)selection).getStartLine(); + IResource resource = (IResource) editorPart.getEditorInput().getAdapter(IResource.class); + String var = variableAndFunctionName[0]; + String fcn = variableAndFunctionName[1]; + // look for existing watchpoint to delete + IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints(PDAPlugin.ID_PDA_DEBUG_MODEL); + for (int i = 0; i < breakpoints.length; i++) { + IBreakpoint breakpoint = breakpoints[i]; + if (breakpoint instanceof PDAWatchpoint && resource.equals(breakpoint.getMarker().getResource())) { + PDAWatchpoint watchpoint = (PDAWatchpoint)breakpoint; + String otherVar = watchpoint.getVariableName(); + String otherFcn = watchpoint.getFunctionName(); + if (otherVar.equals(var) && otherFcn.equals(fcn)) { + breakpoint.delete(); + return; + } + } + } + // create watchpoint + PDAWatchpoint watchpoint = new PDAWatchpoint(resource, lineNumber + 1, fcn, var, true, true); + DebugPlugin.getDefault().getBreakpointManager().addBreakpoint(watchpoint); + } + } + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTarget#canToggleWatchpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public boolean canToggleWatchpoints(IWorkbenchPart part, ISelection selection) { + return getVariableAndFunctionName(part, selection) != null; + } + + /** + * Returns the variable and function names at the current line, or <code>null</code> if none. + * + * @param part text editor + * @param selection text selection + * @return the variable and function names at the current line, or <code>null</code> if none. + * The array has two elements, the first is the variable name, the second is the function name. + */ + private String[] getVariableAndFunctionName(IWorkbenchPart part, ISelection selection) { + ITextEditor editor = getEditor(part); + if (editor != null && selection instanceof ITextSelection) { + ITextSelection textSelection = (ITextSelection) selection; + IDocumentProvider documentProvider = editor.getDocumentProvider(); + try { + documentProvider.connect(this); + IDocument document = documentProvider.getDocument(editor.getEditorInput()); + IRegion region = document.getLineInformationOfOffset(textSelection.getOffset()); + String string = document.get(region.getOffset(), region.getLength()).trim(); + if (string.startsWith("var ")) { + String varName = string.substring(4).trim(); + String fcnName = getFunctionName(document, varName, document.getLineOfOffset(textSelection.getOffset())); + return new String[] {varName, fcnName}; + } + } catch (CoreException e) { + } catch (BadLocationException e) { + } finally { + documentProvider.disconnect(this); + } + } + return null; + } + + /** + * Returns the name of the function containing the given variable defined at the given + * line number in the specified document. + * + * @param document PDA source file + * @param varName variable name + * @param line line numbner at which the variable is defined + * @return name of function defining the variable + */ + private String getFunctionName(IDocument document, String varName, int line) { + // This is a simple guess at the function name - look for the labels preceeding + // the variable definition, and then see if there are any 'calls' to that + // label. If none, assumet the variable is in the "_main_" function + String source = document.get(); + int lineIndex = line - 1; + while (lineIndex >= 0) { + try { + IRegion information = document.getLineInformation(lineIndex); + String lineText = document.get(information.getOffset(), information.getLength()); + if (lineText.startsWith(":")) { + String label = lineText.substring(1); + if (source.indexOf("call " + label) >= 0) { + return label; + } + } + lineIndex--; + } catch (BadLocationException e) { + } + } + return "_main_"; + } + + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension#toggleBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public void toggleBreakpoints(IWorkbenchPart part, ISelection selection) throws CoreException { + if (canToggleWatchpoints(part, selection)) { + toggleWatchpoints(part, selection); + } else { + toggleLineBreakpoints(part, selection); + } + } + + /* (non-Javadoc) + * @see org.eclipse.debug.ui.actions.IToggleBreakpointsTargetExtension#canToggleBreakpoints(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection) + */ + public boolean canToggleBreakpoints(IWorkbenchPart part, ISelection selection) { + return canToggleLineBreakpoints(part, selection) || canToggleWatchpoints(part, selection); + } +} |