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/*******************************************************************************
* Copyright (c) 2008, 2018 Phil Muldoon and others.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Phil Muldoon <pkmuldoon@picobot.org> - initial API.
*******************************************************************************/
package org.eclipse.linuxtools.internal.systemtap.ui.ide.editors.stp;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.ArrayList;
import java.util.HashMap;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.text.Position;
import org.eclipse.jface.text.TextSelection;
import org.eclipse.jface.text.source.Annotation;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.IVerticalRuler;
import org.eclipse.jface.text.source.projection.ProjectionAnnotation;
import org.eclipse.jface.text.source.projection.ProjectionAnnotationModel;
import org.eclipse.jface.text.source.projection.ProjectionSupport;
import org.eclipse.jface.text.source.projection.ProjectionViewer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.editors.text.TextEditor;
import org.eclipse.ui.ide.FileStoreEditorInput;
import org.eclipse.ui.texteditor.ITextEditorActionConstants;
public class STPEditor extends TextEditor {
private Annotation[] stpOldAnnotations;
private ProjectionAnnotationModel stpAnnotationModel;
public static final String ID="org.eclipse.linuxtools.internal.systemtap.ui.ide.editors.stp.STPEditor"; //$NON-NLS-1$
public STPEditor() {
super();
setKeyBindingScopes(new String[] { "org.eclipse.linuxtools.systemtap.ui.ide.context" }); //$NON-NLS-1$
configureInsertMode(SMART_INSERT, false);
setSourceViewerConfiguration(new STPConfiguration(this));
}
@Override
protected void doSetInput(IEditorInput input) throws CoreException {
if(input instanceof FileStoreEditorInput) {
input= new PathEditorInput(new Path(((FileStoreEditorInput) input).getURI().getPath()));
}
super.doSetInput(input);
}
@Override
public void createPartControl(Composite parent)
{
super.createPartControl(parent);
ProjectionViewer viewer =(ProjectionViewer)getSourceViewer();
ProjectionSupport stpProjectionSupport = new ProjectionSupport(viewer,getAnnotationAccess(),getSharedColors());
stpProjectionSupport.install();
viewer.doOperation(ProjectionViewer.TOGGLE);
stpAnnotationModel = viewer.getProjectionAnnotationModel();
}
@Override
protected ISourceViewer createSourceViewer(Composite parent, IVerticalRuler ruler, int styles) {
ISourceViewer viewer = new ProjectionViewer(parent, ruler,
getOverviewRuler(), isOverviewRulerVisible(), styles);
getSourceViewerDecorationSupport(viewer);
return viewer;
}
public void updateFoldingStructure(ArrayList<Position> updatedPositions) {
ProjectionAnnotation annotation;
Annotation[] updatedAnnotations = new Annotation[updatedPositions.size()];
HashMap<ProjectionAnnotation, Position> newAnnotations = new HashMap<>();
for (int i = 0; i < updatedPositions.size(); i++) {
annotation = new ProjectionAnnotation();
newAnnotations.put(annotation, updatedPositions.get(i));
updatedAnnotations[i] = annotation;
}
stpAnnotationModel.modifyAnnotations(stpOldAnnotations, newAnnotations, null);
stpOldAnnotations = updatedAnnotations;
}
public ISourceViewer getMySourceViewer() {
return this.getSourceViewer();
}
/**
* Inserts text into the IDocument.
* @param text string to insert
*/
public void insertText(String text) {
IDocument doc = getSourceViewer().getDocument();
String s = doc.get();
int offset = s.length();
s += text;
doc.set(s);
this.setHighlightRange(offset, 0, true);
}
/**
* Inserts text at the current location.
* @param text string to insert
*/
public void insertTextAtCurrent(String text) {
ISelection selection = this.getSelectionProvider().getSelection();
IDocument doc = getSourceViewer().getDocument();
if (selection instanceof ITextSelection) {
ITextSelection s = (ITextSelection) selection;
StringBuffer sb = new StringBuffer(doc.get().substring(0, s.getOffset()));
sb.append(text.trim());
sb.append(doc.get().substring(s.getOffset() + s.getLength(), doc.get().length()));
doc.set(sb.toString());
this.setHighlightRange(s.getOffset() + text.trim().length(), 0, true);
}
}
/**
* Jumps to the location in the IDocument.
* @param line The line you wish to jump to.
* @param character The character you wish to jump to.
*/
public void jumpToLocation(int line, int character) {
IDocument doc = getSourceViewer().getDocument();
try {
int offset = doc.getLineOffset(line-1) + character;
this.getSelectionProvider().setSelection(new TextSelection(doc, offset, 0));
} catch (BadLocationException boe) {
// Pass
}
}
/**
* Selects a line in the IDocument.
* @param line the line you wish to select
*/
public void selectLine(int line) {
IDocument doc = getSourceViewer().getDocument();
try {
this.getSelectionProvider().setSelection(new TextSelection(doc, doc.getLineOffset(line-1), doc.getLineLength(line-1)-1));
} catch (BadLocationException boe) {
// Pass
}
}
/**
* Performs a SaveAs on the IDocument.
*/
@Override
public void doSaveAs() {
File file = queryFile();
if (file == null) {
return;
}
IEditorInput inputFile = createEditorInput(file);
IDocument doc = getSourceViewer().getDocument();
String s = doc.get();
try (FileOutputStream fos = new FileOutputStream(file);
PrintStream ps = new PrintStream(fos)){
ps.print(s);
ps.close();
} catch (IOException fnfe) {
// Pass
}
setInput(inputFile);
setPartName(inputFile.getName());
}
/**
* Sets up an editor input based on the specified file.
* @param file the location of the file you wish to set.
* @return input object created.
*/
private static IEditorInput createEditorInput(File file) {
IPath location= new Path(file.getAbsolutePath());
return new PathEditorInput(location);
}
private static File queryFile() {
FileDialog dialog= new FileDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), SWT.SAVE);
dialog.setText(Messages.NewFileHandler_NewFile);
String path= dialog.open();
if (path != null && !path.isEmpty()) {
return new File(path);
}
return null;
}
@Override
protected void editorContextMenuAboutToShow(IMenuManager menu) {
super.editorContextMenuAboutToShow(menu);
addAction(menu, ITextEditorActionConstants.GROUP_EDIT, ITextEditorActionConstants.SHIFT_RIGHT);
addAction(menu, ITextEditorActionConstants.GROUP_EDIT, ITextEditorActionConstants.SHIFT_LEFT);
}
}
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