cppeditor.cpp 65.4 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
hjk's avatar
hjk committed
5
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
9
** Commercial Usage
10
**
11 12 13 14
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
15
**
16
** GNU Lesser General Public License Usage
17
**
18 19 20 21 22 23
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
**
25
** If you are unsure which license is appropriate for your use, please
hjk's avatar
hjk committed
26
** contact the sales department at http://qt.nokia.com/contact.
con's avatar
con committed
27
**
28
**************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30 31 32 33
#include "cppeditor.h"
#include "cppeditorconstants.h"
#include "cppplugin.h"
#include "cpphighlighter.h"
Roberto Raggi's avatar
Roberto Raggi committed
34
#include "cppchecksymbols.h"
35
#include "cppquickfix.h"
36
#include "cpplocalsymbols.h"
Roberto Raggi's avatar
Roberto Raggi committed
37

con's avatar
con committed
38
#include <AST.h>
39
#include <Control.h>
con's avatar
con committed
40 41 42 43 44 45 46
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <CoreTypes.h>
#include <Literals.h>
#include <Semantic.h>
47
#include <ASTVisitor.h>
48
#include <SymbolVisitor.h>
49
#include <TranslationUnit.h>
con's avatar
con committed
50
#include <cplusplus/ExpressionUnderCursor.h>
Roberto Raggi's avatar
Roberto Raggi committed
51
#include <cplusplus/TypeOfExpression.h>
con's avatar
con committed
52 53 54
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
55
#include <cplusplus/MatchingText.h>
56
#include <cplusplus/BackwardsScanner.h>
57 58
#include <cplusplus/FastPreprocessor.h>

Roberto Raggi's avatar
Roberto Raggi committed
59
#include <cpptools/cpptoolsplugin.h>
con's avatar
con committed
60
#include <cpptools/cppmodelmanagerinterface.h>
61
#include <cpptools/cpptoolsconstants.h>
Christian Kamm's avatar
Christian Kamm committed
62
#include <cpptools/cppcodeformatter.h>
con's avatar
con committed
63 64

#include <coreplugin/icore.h>
65
#include <coreplugin/actionmanager/actionmanager.h>
66
#include <coreplugin/actionmanager/actioncontainer.h>
con's avatar
con committed
67 68
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/editormanager/editormanager.h>
dt's avatar
dt committed
69
#include <coreplugin/mimedatabase.h>
70
#include <utils/uncommentselection.h>
71
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
72 73 74 75 76 77 78 79 80 81
#include <projectexplorer/projectexplorerconstants.h>
#include <texteditor/basetextdocument.h>
#include <texteditor/fontsettings.h>
#include <texteditor/texteditorconstants.h>
#include <texteditor/textblockiterator.h>
#include <indenter.h>

#include <QtCore/QDebug>
#include <QtCore/QTime>
#include <QtCore/QTimer>
82
#include <QtCore/QStack>
83
#include <QtCore/QSettings>
84
#include <QtCore/QSignalMapper>
con's avatar
con committed
85
#include <QtGui/QAction>
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
86
#include <QtGui/QApplication>
87
#include <QtGui/QHeaderView>
con's avatar
con committed
88 89 90 91 92
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
con's avatar
con committed
93
#include <QtGui/QToolBar>
con's avatar
con committed
94
#include <QtGui/QTreeView>
95
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
96

97 98
#include <sstream>

Roberto Raggi's avatar
Roberto Raggi committed
99
enum {
100
    UPDATE_OUTLINE_INTERVAL = 150,
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
101
    UPDATE_USES_INTERVAL = 300
Roberto Raggi's avatar
Roberto Raggi committed
102 103
};

Roberto Raggi's avatar
Roberto Raggi committed
104 105 106
using namespace CPlusPlus;
using namespace CppEditor::Internal;

107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131
static QList<QTextEdit::ExtraSelection> createSelections(QTextDocument *document,
                                                         const QList<CPlusPlus::Document::DiagnosticMessage> &msgs,
                                                         const QTextCharFormat &format)
{
    QList<QTextEdit::ExtraSelection> selections;

    foreach (const Document::DiagnosticMessage &m, msgs) {
        const int pos = document->findBlockByNumber(m.line() - 1).position() + m.column() - 1;
        if (pos < 0)
            continue;

        QTextCursor cursor(document);
        cursor.setPosition(pos);
        cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, m.length());

        QTextEdit::ExtraSelection sel;
        sel.cursor = cursor;
        sel.format = format;
        sel.format.setToolTip(m.text());
        selections.append(sel);
    }

    return selections;
}

con's avatar
con committed
132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
namespace {

class OverviewTreeView : public QTreeView
{
public:
    OverviewTreeView(QWidget *parent = 0)
        : QTreeView(parent)
    {
        // TODO: Disable the root for all items (with a custom delegate?)
        setRootIsDecorated(false);
    }

    void sync()
    {
        expandAll();
        setMinimumWidth(qMax(sizeHintForColumn(0), minimumSizeHint().width()));
    }
};

151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175
class OverviewProxyModel : public QSortFilterProxyModel
{
    Q_OBJECT
public:
    OverviewProxyModel(CPlusPlus::OverviewModel *sourceModel, QObject *parent) :
        QSortFilterProxyModel(parent),
        m_sourceModel(sourceModel)
    {
        setSourceModel(m_sourceModel);
    }

    bool filterAcceptsRow(int sourceRow,const QModelIndex &sourceParent) const
    {
        // ignore generated symbols, e.g. by macro expansion (Q_OBJECT)
        const QModelIndex sourceIndex = m_sourceModel->index(sourceRow, 0, sourceParent);
        CPlusPlus::Symbol *symbol = m_sourceModel->symbolFromIndex(sourceIndex);
        if (symbol && symbol->isGenerated())
            return false;

        return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
    }
private:
    CPlusPlus::OverviewModel *m_sourceModel;
};

Roberto Raggi's avatar
Roberto Raggi committed
176 177 178 179
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    unsigned _line;
    unsigned _column;
180
    DeclarationAST *_functionDefinition;
Roberto Raggi's avatar
Roberto Raggi committed
181 182

public:
Roberto Raggi's avatar
Roberto Raggi committed
183 184
    FunctionDefinitionUnderCursor(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
Roberto Raggi's avatar
Roberto Raggi committed
185
          _line(0), _column(0)
Roberto Raggi's avatar
Roberto Raggi committed
186 187
    { }

188
    DeclarationAST *operator()(AST *ast, unsigned line, unsigned column)
Roberto Raggi's avatar
Roberto Raggi committed
189 190
    {
        _functionDefinition = 0;
Roberto Raggi's avatar
Roberto Raggi committed
191 192
        _line = line;
        _column = column;
Roberto Raggi's avatar
Roberto Raggi committed
193 194 195 196 197 198 199 200 201 202 203
        accept(ast);
        return _functionDefinition;
    }

protected:
    virtual bool preVisit(AST *ast)
    {
        if (_functionDefinition)
            return false;

        else if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
204 205 206 207 208 209
            return checkDeclaration(def);
        }

        else if (ObjCMethodDeclarationAST *method = ast->asObjCMethodDeclaration()) {
            if (method->function_body)
                return checkDeclaration(method);
Roberto Raggi's avatar
Roberto Raggi committed
210 211 212 213 214
        }

        return true;
    }

215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231
private:
    bool checkDeclaration(DeclarationAST *ast)
    {
        unsigned startLine, startColumn;
        unsigned endLine, endColumn;
        getTokenStartPosition(ast->firstToken(), &startLine, &startColumn);
        getTokenEndPosition(ast->lastToken() - 1, &endLine, &endColumn);

        if (_line > startLine || (_line == startLine && _column >= startColumn)) {
            if (_line < endLine || (_line == endLine && _column < endColumn)) {
                _functionDefinition = ast;
                return false;
            }
        }

        return true;
    }
Roberto Raggi's avatar
Roberto Raggi committed
232 233
};

234 235
class FindFunctionDefinitions: protected SymbolVisitor
{
Roberto Raggi's avatar
Roberto Raggi committed
236
    const Name *_declarationName;
237 238 239 240 241 242 243 244
    QList<Function *> *_functions;

public:
    FindFunctionDefinitions()
        : _declarationName(0),
          _functions(0)
    { }

Roberto Raggi's avatar
Roberto Raggi committed
245
    void operator()(const Name *declarationName, Scope *globals,
246 247 248 249 250 251 252 253 254 255 256 257 258 259 260
                    QList<Function *> *functions)
    {
        _declarationName = declarationName;
        _functions = functions;

        for (unsigned i = 0; i < globals->symbolCount(); ++i) {
            accept(globals->symbolAt(i));
        }
    }

protected:
    using SymbolVisitor::visit;

    virtual bool visit(Function *function)
    {
Roberto Raggi's avatar
Roberto Raggi committed
261 262
        const Name *name = function->name();
        if (const QualifiedNameId *q = name->asQualifiedNameId())
263
            name = q->name();
264 265 266 267 268 269 270 271

        if (_declarationName->isEqualTo(name))
            _functions->append(function);

        return false;
    }
};

272

273
struct CanonicalSymbol
274 275 276 277 278
{
    CPPEditor *editor;
    TypeOfExpression typeOfExpression;
    SemanticInfo info;

279
    CanonicalSymbol(CPPEditor *editor, const SemanticInfo &info)
Erik Verbruggen's avatar
Erik Verbruggen committed
280
        : editor(editor), info(info)
281 282 283 284 285 286 287 288 289
    {
        typeOfExpression.init(info.doc, info.snapshot);
    }

    const LookupContext &context() const
    {
        return typeOfExpression.context();
    }

290
    static inline bool isIdentifierChar(const QChar &ch)
291 292 293 294
    {
        return ch.isLetterOrNumber() || ch == QLatin1Char('_');
    }

295 296 297 298 299 300 301 302
    Scope *getScopeAndExpression(const QTextCursor &cursor, QString *code)
    {
        return getScopeAndExpression(editor, info, cursor, code);
    }

    static Scope *getScopeAndExpression(CPPEditor *editor, const SemanticInfo &info,
                                        const QTextCursor &cursor,
                                        QString *code)
303 304 305 306 307 308 309 310 311 312 313 314
    {
        if (! info.doc)
            return 0;

        QTextCursor tc = cursor;
        int line, col;
        editor->convertPosition(tc.position(), &line, &col);
        ++col; // 1-based line and 1-based column

        QTextDocument *document = editor->document();

        int pos = tc.position();
315 316 317 318 319 320

        if (! isIdentifierChar(document->characterAt(pos)))
            if (! (pos > 0 && isIdentifierChar(document->characterAt(pos - 1))))
                return 0;

        while (isIdentifierChar(document->characterAt(pos)))
321 322 323
            ++pos;
        tc.setPosition(pos);

324 325 326 327 328 329 330 331 332 333 334
        ExpressionUnderCursor expressionUnderCursor;
        *code = expressionUnderCursor(tc);
        return info.doc->scopeAt(line, col);
    }

    Symbol *operator()(const QTextCursor &cursor)
    {
        QString code;

        if (Scope *scope = getScopeAndExpression(cursor, &code))
            return operator()(scope, code);
335

336 337 338 339 340 341 342 343 344 345
        return 0;
    }

    Symbol *operator()(Scope *scope, const QString &code)
    {
        return canonicalSymbol(scope, code, typeOfExpression);
    }

    static Symbol *canonicalSymbol(Scope *scope, const QString &code, TypeOfExpression &typeOfExpression)
    {
346
        const QList<LookupItem> results = typeOfExpression(code, scope, TypeOfExpression::Preprocess);
347

348
        for (int i = 0; i < results.size(); ++i) { // ### TODO virtual methods and classes.
349 350 351 352 353 354 355 356
            const LookupItem &r = results.at(i);

            if (r.declaration())
                return r.declaration();
        }

        return 0;
    }
357

358 359
};

con's avatar
con committed
360 361 362
} // end of anonymous namespace

CPPEditorEditable::CPPEditorEditable(CPPEditor *editor)
hjk's avatar
hjk committed
363
    : BaseTextEditorEditable(editor)
con's avatar
con committed
364
{
365 366 367
    m_context.add(CppEditor::Constants::C_CPPEDITOR);
    m_context.add(ProjectExplorer::Constants::LANG_CXX);
    m_context.add(TextEditor::Constants::C_TEXTEDITOR);
con's avatar
con committed
368 369
}

370 371
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
372
    , m_currentRenameSelection(NoCurrentRenameSelection)
373
    , m_inRename(false)
mae's avatar
mae committed
374 375
    , m_inRenameChanged(false)
    , m_firstRenameChange(false)
376
    , m_objcEnabled(false)
con's avatar
con committed
377
{
Roberto Raggi's avatar
Roberto Raggi committed
378
    m_initialized = false;
379
    qRegisterMetaType<CppEditor::Internal::SemanticInfo>("CppEditor::Internal::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
380 381 382 383

    m_semanticHighlighter = new SemanticHighlighter(this);
    m_semanticHighlighter->start();

con's avatar
con committed
384 385
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
386
    setCodeFoldingSupported(true);
con's avatar
con committed
387
    setCodeFoldingVisible(true);
388
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
389

Roberto Raggi's avatar
Roberto Raggi committed
390
    m_modelManager = CppTools::CppModelManagerInterface::instance();
con's avatar
con committed
391 392 393 394 395

    if (m_modelManager) {
        connect(m_modelManager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
                this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
    }
396

397 398 399 400
    m_highlightRevision = 0;
    m_nextHighlightBlockNumber = 0;
    connect(&m_highlightWatcher, SIGNAL(resultsReadyAt(int,int)), SLOT(highlightTypeUsages(int,int)));
    connect(&m_highlightWatcher, SIGNAL(finished()), SLOT(finishTypeUsages()));
401 402 403 404

    m_referencesRevision = 0;
    m_referencesCursorPosition = 0;
    connect(&m_referencesWatcher, SIGNAL(finished()), SLOT(markSymbolsNow()));
con's avatar
con committed
405 406 407 408
}

CPPEditor::~CPPEditor()
{
409 410
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));

Roberto Raggi's avatar
Roberto Raggi committed
411 412
    m_semanticHighlighter->abort();
    m_semanticHighlighter->wait();
con's avatar
con committed
413 414 415 416 417 418 419 420 421 422 423
}

TextEditor::BaseTextEditorEditable *CPPEditor::createEditableInterface()
{
    CPPEditorEditable *editable = new CPPEditorEditable(this);
    createToolBar(editable);
    return editable;
}

void CPPEditor::createToolBar(CPPEditorEditable *editable)
{
Kai Koehne's avatar
Kai Koehne committed
424 425
    m_outlineCombo = new QComboBox;
    m_outlineCombo->setMinimumContentsLength(22);
426 427

    // Make the combo box prefer to expand
Kai Koehne's avatar
Kai Koehne committed
428
    QSizePolicy policy = m_outlineCombo->sizePolicy();
429
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
Kai Koehne's avatar
Kai Koehne committed
430
    m_outlineCombo->setSizePolicy(policy);
431

Kai Koehne's avatar
Kai Koehne committed
432 433 434 435 436
    QTreeView *outlineView = new OverviewTreeView;
    outlineView->header()->hide();
    outlineView->setItemsExpandable(false);
    m_outlineCombo->setView(outlineView);
    m_outlineCombo->setMaxVisibleItems(20);
con's avatar
con committed
437

Kai Koehne's avatar
Kai Koehne committed
438 439 440
    m_outlineModel = new OverviewModel(this);
    m_proxyModel = new OverviewProxyModel(m_outlineModel, this);
    if (CppPlugin::instance()->sortedOutline())
441 442
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
Kai Koehne's avatar
Kai Koehne committed
443
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedOutline()
444 445
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
Kai Koehne's avatar
Kai Koehne committed
446
    m_outlineCombo->setModel(m_proxyModel);
447

Kai Koehne's avatar
Kai Koehne committed
448 449
    m_outlineCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort Alphabetically"), m_outlineCombo);
450
    m_sortAction->setCheckable(true);
Kai Koehne's avatar
Kai Koehne committed
451 452 453
    m_sortAction->setChecked(sortedOutline());
    connect(m_sortAction, SIGNAL(toggled(bool)), CppPlugin::instance(), SLOT(setSortedOutline(bool)));
    m_outlineCombo->addAction(m_sortAction);
con's avatar
con committed
454

455 456 457 458 459
    m_updateOutlineTimer = new QTimer(this);
    m_updateOutlineTimer->setSingleShot(true);
    m_updateOutlineTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
    connect(m_updateOutlineTimer, SIGNAL(timeout()), this, SLOT(updateOutlineNow()));

Kai Koehne's avatar
Kai Koehne committed
460 461 462 463
    m_updateOutlineIndexTimer = new QTimer(this);
    m_updateOutlineIndexTimer->setSingleShot(true);
    m_updateOutlineIndexTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
    connect(m_updateOutlineIndexTimer, SIGNAL(timeout()), this, SLOT(updateOutlineIndexNow()));
Roberto Raggi's avatar
Roberto Raggi committed
464

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
465 466 467 468 469
    m_updateUsesTimer = new QTimer(this);
    m_updateUsesTimer->setSingleShot(true);
    m_updateUsesTimer->setInterval(UPDATE_USES_INTERVAL);
    connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

Kai Koehne's avatar
Kai Koehne committed
470 471 472
    connect(m_outlineCombo, SIGNAL(activated(int)), this, SLOT(jumpToOutlineElement(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateOutlineIndex()));
    connect(m_outlineCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateOutlineToolTip()));
473
    connect(document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
474 475 476

    connect(file(), SIGNAL(changed()), this, SLOT(updateFileName()));

Roberto Raggi's avatar
Roberto Raggi committed
477 478 479 480 481

    // set up the semantic highlighter
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateUses()));
    connect(this, SIGNAL(textChanged()), this, SLOT(updateUses()));

482 483
    connect(m_semanticHighlighter, SIGNAL(changed(CppEditor::Internal::SemanticInfo)),
            this, SLOT(updateSemanticInfo(CppEditor::Internal::SemanticInfo)));
Roberto Raggi's avatar
Roberto Raggi committed
484

con's avatar
con committed
485
    QToolBar *toolBar = static_cast<QToolBar*>(editable->toolBar());
con's avatar
con committed
486
    QList<QAction*> actions = toolBar->actions();
487
    QWidget *w = toolBar->widgetForAction(actions.first());
Kai Koehne's avatar
Kai Koehne committed
488
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_outlineCombo, 1);
con's avatar
con committed
489 490
}

mae's avatar
mae committed
491 492
void CPPEditor::paste()
{
493
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
mae's avatar
mae committed
494 495 496 497 498 499 500 501 502 503 504
        BaseTextEditor::paste();
        return;
    }

    startRename();
    BaseTextEditor::paste();
    finishRename();
}

void CPPEditor::cut()
{
505
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
mae's avatar
mae committed
506 507 508 509 510 511 512 513 514
        BaseTextEditor::cut();
        return;
    }

    startRename();
    BaseTextEditor::cut();
    finishRename();
}

515 516 517 518 519
CppTools::CppModelManagerInterface *CPPEditor::modelManager() const
{
    return m_modelManager;
}

520 521 522 523 524 525 526 527 528 529 530 531 532 533
void CPPEditor::setMimeType(const QString &mt)
{
    BaseTextEditor::setMimeType(mt);
    setObjCEnabled(mt == CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE);
}

void CPPEditor::setObjCEnabled(bool onoff)
{
    m_objcEnabled = onoff;
}

bool CPPEditor::isObjCEnabled() const
{ return m_objcEnabled; }

mae's avatar
mae committed
534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569
void CPPEditor::startRename()
{
    m_inRenameChanged = false;
}

void CPPEditor::finishRename()
{
    if (!m_inRenameChanged)
        return;

    m_inRename = true;

    QTextCursor cursor = textCursor();
    cursor.joinPreviousEditBlock();

    cursor.setPosition(m_currentRenameSelectionEnd.position());
    cursor.setPosition(m_currentRenameSelectionBegin.position(), QTextCursor::KeepAnchor);
    m_renameSelections[m_currentRenameSelection].cursor = cursor;
    QString text = cursor.selectedText();

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        if (i == m_currentRenameSelection)
            continue;
        QTextEdit::ExtraSelection &s = m_renameSelections[i];
        int pos = s.cursor.selectionStart();
        s.cursor.removeSelectedText();
        s.cursor.insertText(text);
        s.cursor.setPosition(pos, QTextCursor::KeepAnchor);
    }

    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
    cursor.endEditBlock();

    m_inRename = false;
}

570 571
void CPPEditor::abortRename()
{
572
    if (m_currentRenameSelection <= NoCurrentRenameSelection)
mae's avatar
mae committed
573
        return;
574
    m_renameSelections[m_currentRenameSelection].format = m_occurrencesFormat;
575
    m_currentRenameSelection = NoCurrentRenameSelection;
mae's avatar
mae committed
576 577
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
578 579 580
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
}

con's avatar
con committed
581 582 583 584 585
void CPPEditor::onDocumentUpdated(Document::Ptr doc)
{
    if (doc->fileName() != file()->fileName())
        return;

586 587 588
    if (doc->editorRevision() != editorRevision())
        return;

Roberto Raggi's avatar
Roberto Raggi committed
589 590 591 592 593 594 595
    if (! m_initialized) {
        m_initialized = true;

        const SemanticHighlighter::Source source = currentSource(/*force = */ true);
        m_semanticHighlighter->rehighlight(source);
    }

596
    m_updateOutlineTimer->start();
con's avatar
con committed
597 598
}

599
const Macro *CPPEditor::findCanonicalMacro(const QTextCursor &cursor, Document::Ptr doc) const
Christian Kamm's avatar
Christian Kamm committed
600 601 602 603 604 605 606 607 608 609 610 611 612 613 614
{
    if (! doc)
        return 0;

    int line, col;
    convertPosition(cursor.position(), &line, &col);

    if (const Macro *macro = doc->findMacroDefinitionAt(line))
        return macro;

    if (const Document::MacroUse *use = doc->findMacroUseAt(cursor.position()))
        return &use->macro();

    return 0;
}
615 616

void CPPEditor::findUsages()
617
{
618 619
    const SemanticInfo info = m_lastSemanticInfo;

620
    CanonicalSymbol cs(this, info);
621 622 623 624
    Symbol *canonicalSymbol = cs(textCursor());
    if (canonicalSymbol) {
        m_modelManager->findUsages(canonicalSymbol, cs.context());
    } else if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
Christian Kamm's avatar
Christian Kamm committed
625
        m_modelManager->findMacroUsages(*macro);
626
    }
627 628 629
}

void CPPEditor::renameUsages()
630
{
631 632 633
    renameUsagesNow();
}

634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656
bool CPPEditor::showWarningMessage() const
{
    // Restore settings
    QSettings *settings = Core::ICore::instance()->settings();
    settings->beginGroup(QLatin1String("CppEditor"));
    settings->beginGroup(QLatin1String("Rename"));
    const bool showWarningMessage = settings->value(QLatin1String("ShowWarningMessage"), true).toBool();
    settings->endGroup();
    settings->endGroup();
    return showWarningMessage;
}

void CPPEditor::setShowWarningMessage(bool showWarningMessage)
{
    // Restore settings
    QSettings *settings = Core::ICore::instance()->settings();
    settings->beginGroup(QLatin1String("CppEditor"));
    settings->beginGroup(QLatin1String("Rename"));
    settings->setValue(QLatin1String("ShowWarningMessage"), showWarningMessage);
    settings->endGroup();
    settings->endGroup();
}

657 658
void CPPEditor::hideRenameNotification()
{
659
    setShowWarningMessage(false);
660
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));
661 662 663 664
}

void CPPEditor::renameUsagesNow()
{
665 666
    const SemanticInfo info = m_lastSemanticInfo;

667
    CanonicalSymbol cs(this, info);
668
    if (Symbol *canonicalSymbol = cs(textCursor())) {
669
        if (canonicalSymbol->identifier() != 0) {
670 671 672 673 674 675
            if (showWarningMessage()) {
                Core::EditorManager::instance()->showEditorInfoBar(QLatin1String("CppEditor.Rename"),
                                                                   tr("This change cannot be undone."),
                                                                   tr("Yes, I know what I am doing."),
                                                                   this, SLOT(hideRenameNotification()));
            }
676

677
            m_modelManager->renameUsages(canonicalSymbol, cs.context());
678
        }
679 680 681
    }
}

682
void CPPEditor::markSymbolsNow()
683
{
684 685 686 687 688 689
    if (m_references.isCanceled())
        return;
    else if (m_referencesCursorPosition != position())
        return;
    else if (m_referencesRevision != editorRevision())
        return;
690

691 692 693
    const SemanticInfo info = m_lastSemanticInfo;
    TranslationUnit *unit = info.doc->translationUnit();
    const QList<int> result = m_references.result();
694 695 696

    QList<QTextEdit::ExtraSelection> selections;

697 698 699
    foreach (int index, result) {
        unsigned line, column;
        unit->getTokenPosition(index, &line, &column);
700

701 702
        if (column)
            --column;  // adjust the column position.
703

704
        const int len = unit->tokenAt(index).f.length;
705

706 707 708
        QTextCursor cursor(document()->findBlockByNumber(line - 1));
        cursor.setPosition(cursor.position() + column);
        cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
709

710 711 712 713
        QTextEdit::ExtraSelection sel;
        sel.format = m_occurrencesFormat;
        sel.cursor = cursor;
        selections.append(sel);
714

Roberto Raggi's avatar
Roberto Raggi committed
715
    }
716 717

    setExtraSelections(CodeSemanticsSelection, selections);
Roberto Raggi's avatar
Roberto Raggi committed
718 719
}

720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
static QList<int> lazyFindReferences(Scope *scope, QString code, const LookupContext &context)
{
    TypeOfExpression typeOfExpression;
    typeOfExpression.init(context.thisDocument(), context.snapshot(), context.bindings());
    if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression))
        return CppTools::CppModelManagerInterface::instance()->references(canonicalSymbol, context);
    return QList<int>();
}

void CPPEditor::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
{
    abortRename();

    if (! info.doc)
        return;

    CanonicalSymbol cs(this, info);
    QString expression;
    if (Scope *scope = cs.getScopeAndExpression(this, info, tc, &expression)) {
        LookupContext context(info.doc, info.snapshot);

        m_references.cancel();
        m_referencesRevision = info.revision;
        m_referencesCursorPosition = position();
        m_references = QtConcurrent::run(&lazyFindReferences, scope, expression, context);
        m_referencesWatcher.setFuture(m_references);
    }
}

749
void CPPEditor::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
750
{
Roberto Raggi's avatar
Roberto Raggi committed
751
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
mae's avatar
mae committed
752
    abortRename();
753

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
754 755 756 757 758
    QTextCursor c = textCursor();

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        QTextEdit::ExtraSelection s = m_renameSelections.at(i);
        if (c.position() >= s.cursor.anchor()
759
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
760
            m_currentRenameSelection = i;
mae's avatar
mae committed
761 762 763 764 765
            m_firstRenameChange = true;
            m_currentRenameSelectionBegin = QTextCursor(c.document()->docHandle(),
                                                        m_renameSelections[i].cursor.selectionStart());
            m_currentRenameSelectionEnd = QTextCursor(c.document()->docHandle(),
                                                        m_renameSelections[i].cursor.selectionEnd());
766
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
767 768 769 770
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
771 772

    if (m_renameSelections.isEmpty())
773
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
774 775
}

776 777
void CPPEditor::onContentsChanged(int position, int charsRemoved, int charsAdded)
{
778 779
    Q_UNUSED(position)

780
    if (m_currentRenameSelection == NoCurrentRenameSelection || m_inRename)
781 782
        return;

mae's avatar
mae committed
783 784 785 786 787 788 789 790 791 792 793
    if (position + charsAdded == m_currentRenameSelectionBegin.position()) {
        // we are inserting at the beginning of the rename selection => expand
        m_currentRenameSelectionBegin.setPosition(position);
        m_renameSelections[m_currentRenameSelection].cursor.setPosition(position, QTextCursor::KeepAnchor);
    }

    // the condition looks odd, but keep in mind that the begin and end cursors do move automatically
    m_inRenameChanged = (position >= m_currentRenameSelectionBegin.position()
                         && position + charsAdded <= m_currentRenameSelectionEnd.position());

    if (!m_inRenameChanged)
794 795 796 797 798 799
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

con's avatar
con committed
800 801 802
void CPPEditor::updateFileName()
{ }

Kai Koehne's avatar
Kai Koehne committed
803
void CPPEditor::jumpToOutlineElement(int)
con's avatar
con committed
804
{
Kai Koehne's avatar
Kai Koehne committed
805 806
    QModelIndex index = m_proxyModel->mapToSource(m_outlineCombo->view()->currentIndex());
    Symbol *symbol = m_outlineModel->symbolFromIndex(index);
con's avatar
con committed
807 808 809
    if (! symbol)
        return;

810
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
811 812
}

Kai Koehne's avatar
Kai Koehne committed
813
void CPPEditor::setSortedOutline(bool sort)
814
{
Kai Koehne's avatar
Kai Koehne committed
815
    if (sort != sortedOutline()) {
816 817 818 819 820 821 822
        if (sort)
            m_proxyModel->sort(0, Qt::AscendingOrder);
        else
            m_proxyModel->sort(-1, Qt::AscendingOrder);
        bool block = m_sortAction->blockSignals(true);
        m_sortAction->setChecked(m_proxyModel->sortColumn() == 0);
        m_sortAction->blockSignals(block);
Kai Koehne's avatar
Kai Koehne committed
823
        updateOutlineIndexNow();
824 825 826
    }
}

Kai Koehne's avatar
Kai Koehne committed
827
bool CPPEditor::sortedOutline() const
828 829 830 831
{
    return (m_proxyModel->sortColumn() == 0);
}

832 833 834 835 836 837 838 839 840 841 842 843 844
void CPPEditor::updateOutlineNow()
{
    const Snapshot snapshot = m_modelManager->snapshot();
    Document::Ptr document = snapshot.document(file()->fileName());

    if (!document)
        return;

    if (document->editorRevision() != editorRevision()) {
        m_updateOutlineTimer->start();
        return;
    }

Kai Koehne's avatar
Kai Koehne committed
845
    m_outlineModel->rebuild(document);
846

Kai Koehne's avatar
Kai Koehne committed
847
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_outlineCombo->view());
848
    treeView->sync();
Kai Koehne's avatar
Kai Koehne committed
849
    updateOutlineIndexNow();
850 851
}

Kai Koehne's avatar
Kai Koehne committed
852
void CPPEditor::updateOutlineIndex()
con's avatar
con committed
853
{
Kai Koehne's avatar
Kai Koehne committed
854
    m_updateOutlineIndexTimer->start();
Roberto Raggi's avatar
Roberto Raggi committed
855 856
}

857
void CPPEditor::highlightUses(const QList<SemanticInfo::Use> &uses,
858
                              const SemanticInfo &semanticInfo,
859
                              QList<QTextEdit::ExtraSelection> *selections)
Roberto Raggi's avatar
Roberto Raggi committed
860
{
Roberto Raggi's avatar
Roberto Raggi committed
861
    bool isUnused = false;
Roberto Raggi's avatar
Roberto Raggi committed
862 863

    if (uses.size() == 1)
Roberto Raggi's avatar
Roberto Raggi committed
864
        isUnused = true;
Roberto Raggi's avatar
Roberto Raggi committed
865

Roberto Raggi's avatar
Roberto Raggi committed
866
    foreach (const SemanticInfo::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
867
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
868

Roberto Raggi's avatar
Roberto Raggi committed
869
        if (isUnused)
870
            sel.format = m_occurrencesUnusedFormat;
Roberto Raggi's avatar
Roberto Raggi committed
871
        else
872
            sel.format = m_occurrencesFormat;
Roberto Raggi's avatar
Roberto Raggi committed
873

874
        const int anchor = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;
Roberto Raggi's avatar
Roberto Raggi committed
875
        const int position = anchor + use.length;
Roberto Raggi's avatar
Roberto Raggi committed
876

877
        sel.cursor = QTextCursor(document());
Roberto Raggi's avatar
Roberto Raggi committed
878 879
        sel.cursor.setPosition(anchor);
        sel.cursor.setPosition(position, QTextCursor::KeepAnchor);
Roberto Raggi's avatar
Roberto Raggi committed
880

881 882 883 884 885 886 887 888
        if (isUnused) {
            if (semanticInfo.hasQ && sel.cursor.selectedText() == QLatin1String("q"))
                continue; // skip q

            else if (semanticInfo.hasD && sel.cursor.selectedText() == QLatin1String("d"))
                continue; // skip d
        }

Roberto Raggi's avatar
Roberto Raggi committed
889
        selections->append(sel);
Roberto Raggi's avatar
Roberto Raggi committed
890 891 892
    }
}

Kai Koehne's avatar
Kai Koehne committed
893
void CPPEditor::updateOutlineIndexNow()
Roberto Raggi's avatar
Roberto Raggi committed
894
{
Kai Koehne's avatar
Kai Koehne committed
895
    if (!m_outlineModel->document())
896 897
        return;

Kai Koehne's avatar
Kai Koehne committed
898 899
    if (m_outlineModel->document()->editorRevision() != editorRevision()) {
        m_updateOutlineIndexTimer->start();
900 901 902
        return;
    }

Kai Koehne's avatar
Kai Koehne committed
903
    m_updateOutlineIndexTimer->stop();
904

Kai Koehne's avatar
Kai Koehne committed
905 906
    m_outlineModelIndex = QModelIndex(); //invalidate
    QModelIndex comboIndex = outlineModelIndex();
907

con's avatar
con committed
908

909
    if (comboIndex.isValid()) {
Kai Koehne's avatar
Kai Koehne committed
910
        bool blocked = m_outlineCombo->blockSignals(true);
911 912 913

        // There is no direct way to select a non-root item
        m_outlineCombo->setRootModelIndex(m_proxyModel->mapFromSource(comboIndex.parent()));
Kai Koehne's avatar
Kai Koehne committed
914
        m_outlineCombo->setCurrentIndex(m_proxyModel->mapFromSource(comboIndex).row());
915 916
        m_outlineCombo->setRootModelIndex(QModelIndex());

Kai Koehne's avatar
Kai Koehne committed
917
        updateOutlineToolTip();
918 919

        m_outlineCombo->blockSignals(blocked);
con's avatar
con committed
920
    }
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
921 922
}

Kai Koehne's avatar
Kai Koehne committed
923
void CPPEditor::updateOutlineToolTip()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
924
{
Kai Koehne's avatar
Kai Koehne committed
925
    m_outlineCombo->setToolTip(m_outlineCombo->currentText());
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
926 927 928 929
}

void CPPEditor::updateUses()
{
930 931
    if (editorRevision() != m_highlightRevision)
        m_highlighter.cancel();
mae's avatar
mae committed
932
    m_updateUsesTimer->start();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
933 934 935 936
}

void CPPEditor::updateUsesNow()
{
937
    if (m_currentRenameSelection != NoCurrentRenameSelection)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
938 939
        return;

Roberto Raggi's avatar
Roberto Raggi committed
940
    semanticRehighlight();
con's avatar
con committed
941 942
}

943 944 945 946 947 948 949 950 951 952 953 954 955 956 957
void CPPEditor::highlightTypeUsages(int from, int to)
{
    if (editorRevision() != m_highlightRevision)
        return; // outdated

    else if (m_highlighter.isCanceled())
        return; // aborted

    CppHighlighter *highlighter = qobject_cast<CppHighlighter*>(baseTextDocument()->syntaxHighlighter());
    Q_ASSERT(highlighter);
    QTextDocument *doc = document();

    if (m_nextHighlightBlockNumber >= doc->blockCount())
        return;

Roberto Raggi's avatar
Roberto Raggi committed
958
    QMap<int, QVector<SemanticInfo::Use> > chunks = CheckSymbols::chunks(m_highlighter, from, to);
959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976
    Q_ASSERT(!chunks.isEmpty());
    QTextBlock b = doc->findBlockByNumber(m_nextHighlightBlockNumber);

    QMapIterator<int, QVector<SemanticInfo::Use> > it(chunks);
    while (b.isValid() && it.hasNext()) {
        it.next();
        const int blockNumber = it.key();
        Q_ASSERT(blockNumber < doc->blockCount());

        while (m_nextHighlightBlockNumber < blockNumber) {
            highlighter->setExtraAdditionalFormats(b, QList<QTextLayout::FormatRange>());
            b = b.next();
            ++m_nextHighlightBlockNumber;
        }

        QList<QTextLayout::FormatRange> formats;
        foreach (const SemanticInfo::Use &use, it.value()) {
            QTextLayout::FormatRange formatRange;
977 978 979 980 981 982 983

            switch (use.kind) {
            case SemanticInfo::Use::Type:
                formatRange.format = m_typeFormat;
                break;

            case SemanticInfo::Use::Field:
984
                formatRange.format = m_fieldFormat;
985 986 987
                break;

            case SemanticInfo::Use::Local:
988
                formatRange.format = m_localFormat;
989 990 991 992 993 994
                break;

            default:
                continue;
            }

995 996 997 998 999 1000 1001 1002 1003 1004 1005
            formatRange.start = use.column - 1;
            formatRange.length = use.length;
            formats.append(formatRange);
        }
        highlighter->setExtraAdditionalFormats(b, formats);
        b = b.next();
        ++m_nextHighlightBlockNumber;
    }
}

void CPPEditor::finishTypeUsages()
1006
{
1007
    if (editorRevision() != m_highlightRevision)
1008 1009 1010 1011 1012
        return; // outdated

    else if (m_highlighter.isCanceled())
        return; // aborted

1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026
    CppHighlighter *highlighter = qobject_cast<CppHighlighter*>(baseTextDocument()->syntaxHighlighter());
    Q_ASSERT(highlighter);
    QTextDocument *doc = document();

    if (m_nextHighlightBlockNumber >= doc->blockCount())
        return;

    QTextBlock b = doc->findBlockByNumber(m_nextHighlightBlockNumber);

    while (b.isValid()) {
        highlighter->setExtraAdditionalFormats(b, QList<QTextLayout::FormatRange>());
        b = b.next();
        ++m_nextHighlightBlockNumber;
    }
1027 1028
}

1029

con's avatar
con committed
1030 1031
void CPPEditor::switchDeclarationDefinition()
{
1032
    if (! m_modelManager)
con's avatar
con committed
1033 1034
        return;

1035 1036
    const Snapshot snapshot = m_modelManager->snapshot();

1037 1038 1039
    if (Document::Ptr thisDocument = snapshot.document(file()->fileName())) {
        int line = 0, column = 0;
        convertPosition(position(), &line, &column);
con's avatar
con committed
1040

1041
        Scope *scope = thisDocument->scopeAt(line, column);
1042
        Symbol *lastVisibleSymbol = thisDocument->lastVisibleSymbolAt(line, column);
con's avatar
con committed
1043

1044 1045 1046 1047 1048
        Scope *functionScope = 0;
        if (scope->isFunctionScope())
            functionScope = scope;
        else
            functionScope = scope->enclosingFunctionScope();
con's avatar
con committed
1049

Roberto Raggi's avatar