cppeditor.cpp 71.2 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
con's avatar
con committed
5
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
hjk's avatar
hjk committed
7
** Contact: Nokia Corporation (info@qt.nokia.com)
con's avatar
con committed
8
**
9
**
10
** GNU Lesser General Public License Usage
11
**
hjk's avatar
hjk committed
12 13 14 15 16 17
** 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.
18
**
con's avatar
con committed
19
** In addition, as a special exception, Nokia gives you certain additional
hjk's avatar
hjk committed
20
** rights. These rights are described in the Nokia Qt LGPL Exception
con's avatar
con committed
21 22
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
hjk's avatar
hjk committed
23 24 25 26 27
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
con's avatar
con committed
28
** If you have questions regarding the use of this file, please contact
Tobias Hunger's avatar
Tobias Hunger committed
29
** Nokia at info@qt.nokia.com.
con's avatar
con committed
30
**
31
**************************************************************************/
hjk's avatar
hjk committed
32

con's avatar
con committed
33 34 35 36
#include "cppeditor.h"
#include "cppeditorconstants.h"
#include "cppplugin.h"
#include "cpphighlighter.h"
Roberto Raggi's avatar
Roberto Raggi committed
37
#include "cppchecksymbols.h"
38
#include "cpplocalsymbols.h"
39
#include "cppautocompleter.h"
Leandro Melo's avatar
Leandro Melo committed
40
#include "cppquickfixassistant.h"
Roberto Raggi's avatar
Roberto Raggi committed
41

con's avatar
con committed
42
#include <AST.h>
43
#include <Control.h>
con's avatar
con committed
44 45 46 47 48 49
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <CoreTypes.h>
#include <Literals.h>
50
#include <ASTVisitor.h>
51
#include <SymbolVisitor.h>
52
#include <TranslationUnit.h>
53
#include <cplusplus/ASTPath.h>
54
#include <cplusplus/ModelManagerInterface.h>
con's avatar
con committed
55
#include <cplusplus/ExpressionUnderCursor.h>
Roberto Raggi's avatar
Roberto Raggi committed
56
#include <cplusplus/TypeOfExpression.h>
con's avatar
con committed
57 58 59
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
60
#include <cplusplus/MatchingText.h>
61
#include <cplusplus/BackwardsScanner.h>
62 63
#include <cplusplus/FastPreprocessor.h>

Roberto Raggi's avatar
Roberto Raggi committed
64
#include <cpptools/cpptoolsplugin.h>
65
#include <cpptools/cpptoolsconstants.h>
Christian Kamm's avatar
Christian Kamm committed
66
#include <cpptools/cppcodeformatter.h>
Leandro Melo's avatar
Leandro Melo committed
67
#include <cpptools/cppcompletionassist.h>
68 69
#include <cpptools/cppqtstyleindenter.h>
#include <cpptools/cppcodestylesettings.h>
con's avatar
con committed
70 71

#include <coreplugin/icore.h>
72
#include <coreplugin/actionmanager/actionmanager.h>
73
#include <coreplugin/actionmanager/actioncontainer.h>
74
#include <coreplugin/actionmanager/command.h>
75
#include <coreplugin/uniqueidmanager.h>
con's avatar
con committed
76 77
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/editormanager/editormanager.h>
dt's avatar
dt committed
78
#include <coreplugin/mimedatabase.h>
79
#include <utils/uncommentselection.h>
80
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
81 82
#include <projectexplorer/projectexplorerconstants.h>
#include <texteditor/basetextdocument.h>
83
#include <texteditor/basetextdocumentlayout.h>
con's avatar
con committed
84
#include <texteditor/fontsettings.h>
85
#include <texteditor/tabsettings.h>
con's avatar
con committed
86
#include <texteditor/texteditorconstants.h>
Leandro Melo's avatar
Leandro Melo committed
87 88 89
#include <texteditor/codeassist/basicproposalitemlistmodel.h>
#include <texteditor/codeassist/basicproposalitem.h>
#include <texteditor/codeassist/genericproposal.h>
con's avatar
con committed
90 91 92 93

#include <QtCore/QDebug>
#include <QtCore/QTime>
#include <QtCore/QTimer>
94
#include <QtCore/QStack>
95
#include <QtCore/QSettings>
96
#include <QtCore/QSignalMapper>
con's avatar
con committed
97
#include <QtGui/QAction>
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
98
#include <QtGui/QApplication>
99
#include <QtGui/QHeaderView>
con's avatar
con committed
100 101 102 103 104
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
con's avatar
con committed
105
#include <QtGui/QToolBar>
con's avatar
con committed
106
#include <QtGui/QTreeView>
107
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
108

109 110
#include <sstream>

Roberto Raggi's avatar
Roberto Raggi committed
111
enum {
112 113
    UPDATE_OUTLINE_INTERVAL = 500,
    UPDATE_USES_INTERVAL = 500
Roberto Raggi's avatar
Roberto Raggi committed
114 115
};

Roberto Raggi's avatar
Roberto Raggi committed
116 117 118
using namespace CPlusPlus;
using namespace CppEditor::Internal;

119 120 121 122
namespace {
bool semanticHighlighterDisabled = qstrcmp(qVersion(), "4.7.0") == 0;
}

123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
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
148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166
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()));
    }
};

167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
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
192 193 194 195
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    unsigned _line;
    unsigned _column;
196
    DeclarationAST *_functionDefinition;
Roberto Raggi's avatar
Roberto Raggi committed
197 198

public:
Roberto Raggi's avatar
Roberto Raggi committed
199 200
    FunctionDefinitionUnderCursor(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
Roberto Raggi's avatar
Roberto Raggi committed
201
          _line(0), _column(0)
Roberto Raggi's avatar
Roberto Raggi committed
202 203
    { }

204
    DeclarationAST *operator()(AST *ast, unsigned line, unsigned column)
Roberto Raggi's avatar
Roberto Raggi committed
205 206
    {
        _functionDefinition = 0;
Roberto Raggi's avatar
Roberto Raggi committed
207 208
        _line = line;
        _column = column;
Roberto Raggi's avatar
Roberto Raggi committed
209 210 211 212 213 214 215 216 217 218 219
        accept(ast);
        return _functionDefinition;
    }

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

        else if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
220 221 222 223 224 225
            return checkDeclaration(def);
        }

        else if (ObjCMethodDeclarationAST *method = ast->asObjCMethodDeclaration()) {
            if (method->function_body)
                return checkDeclaration(method);
Roberto Raggi's avatar
Roberto Raggi committed
226 227 228 229 230
        }

        return true;
    }

231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247
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
248 249
};

250 251
class FindFunctionDefinitions: protected SymbolVisitor
{
Roberto Raggi's avatar
Roberto Raggi committed
252
    const Name *_declarationName;
253 254 255 256 257 258 259 260
    QList<Function *> *_functions;

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

Roberto Raggi's avatar
Roberto Raggi committed
261
    void operator()(const Name *declarationName, Scope *globals,
262 263 264 265 266
                    QList<Function *> *functions)
    {
        _declarationName = declarationName;
        _functions = functions;

Roberto Raggi's avatar
Roberto Raggi committed
267 268
        for (unsigned i = 0; i < globals->memberCount(); ++i) {
            accept(globals->memberAt(i));
269 270 271 272 273 274 275 276
        }
    }

protected:
    using SymbolVisitor::visit;

    virtual bool visit(Function *function)
    {
Roberto Raggi's avatar
Roberto Raggi committed
277 278
        const Name *name = function->name();
        if (const QualifiedNameId *q = name->asQualifiedNameId())
279
            name = q->name();
280 281 282 283 284 285 286 287

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

        return false;
    }
};

288

289
struct CanonicalSymbol
290
{
291
    CPPEditorWidget *editor;
292 293 294
    TypeOfExpression typeOfExpression;
    SemanticInfo info;

295
    CanonicalSymbol(CPPEditorWidget *editor, const SemanticInfo &info)
Erik Verbruggen's avatar
Erik Verbruggen committed
296
        : editor(editor), info(info)
297 298 299 300 301 302 303 304 305
    {
        typeOfExpression.init(info.doc, info.snapshot);
    }

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

306
    static inline bool isIdentifierChar(const QChar &ch)
307 308 309 310
    {
        return ch.isLetterOrNumber() || ch == QLatin1Char('_');
    }

311 312 313 314 315
    Scope *getScopeAndExpression(const QTextCursor &cursor, QString *code)
    {
        return getScopeAndExpression(editor, info, cursor, code);
    }

316
    static Scope *getScopeAndExpression(CPPEditorWidget *editor, const SemanticInfo &info,
317 318
                                        const QTextCursor &cursor,
                                        QString *code)
319 320 321 322 323 324 325 326 327 328 329 330
    {
        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();
331 332 333 334 335 336

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

        while (isIdentifierChar(document->characterAt(pos)))
337 338 339
            ++pos;
        tc.setPosition(pos);

340 341 342 343 344 345 346 347 348 349 350
        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);
351

352 353 354 355 356 357 358 359 360 361
        return 0;
    }

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

    static Symbol *canonicalSymbol(Scope *scope, const QString &code, TypeOfExpression &typeOfExpression)
    {
362
        const QList<LookupItem> results = typeOfExpression(code, scope, TypeOfExpression::Preprocess);
363

Roberto Raggi's avatar
Roberto Raggi committed
364 365
        for (int i = results.size() - 1; i != -1; --i) {
            const LookupItem &r = results.at(i);
366
            Symbol *decl = r.declaration();
Roberto Raggi's avatar
Roberto Raggi committed
367

368
            if (! (decl && decl->enclosingScope()))
Roberto Raggi's avatar
Roberto Raggi committed
369 370
                break;

371
            if (Class *classScope = r.declaration()->enclosingScope()->asClass()) {
372 373 374 375 376 377 378 379 380 381 382
                const Identifier *declId = decl->identifier();
                const Identifier *classId = classScope->identifier();

                if (classId && classId->isEqualTo(declId))
                    continue; // skip it, it's a ctor or a dtor.

                else if (Function *funTy = r.declaration()->type()->asFunctionType()) {
                    if (funTy->isVirtual())
                        return r.declaration();
                }
            }
Roberto Raggi's avatar
Roberto Raggi committed
383 384 385
        }

        for (int i = 0; i < results.size(); ++i) {
386 387 388 389 390 391 392 393
            const LookupItem &r = results.at(i);

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

        return 0;
    }
394

395 396
};

397 398 399

int numberOfClosedEditors = 0;

con's avatar
con committed
400 401
} // end of anonymous namespace

402 403
CPPEditor::CPPEditor(CPPEditorWidget *editor)
    : BaseTextEditor(editor)
con's avatar
con committed
404
{
405 406 407
    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
408 409
}

410 411
CPPEditorWidget::CPPEditorWidget(QWidget *parent)
    : TextEditor::BaseTextEditorWidget(parent)
412
    , m_currentRenameSelection(NoCurrentRenameSelection)
413
    , m_inRename(false)
mae's avatar
mae committed
414 415
    , m_inRenameChanged(false)
    , m_firstRenameChange(false)
416
    , m_objcEnabled(false)
con's avatar
con committed
417
{
Roberto Raggi's avatar
Roberto Raggi committed
418
    m_initialized = false;
419
    qRegisterMetaType<CppEditor::Internal::SemanticInfo>("CppEditor::Internal::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
420 421 422 423

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

con's avatar
con committed
424 425
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
426
    setCodeFoldingSupported(true);
427
    setIndenter(new CppTools::CppQtStyleIndenter);
428
    setAutoCompleter(new CppAutoCompleter);
dt's avatar
dt committed
429

430
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
431

432
    m_modelManager = CppModelManagerInterface::instance();
con's avatar
con committed
433 434 435 436 437

    if (m_modelManager) {
        connect(m_modelManager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
                this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
    }
438

439 440
    m_highlightRevision = 0;
    m_nextHighlightBlockNumber = 0;
441 442
    connect(&m_highlightWatcher, SIGNAL(resultsReadyAt(int,int)), SLOT(highlightSymbolUsages(int,int)));
    connect(&m_highlightWatcher, SIGNAL(finished()), SLOT(finishHighlightSymbolUsages()));
443 444 445 446

    m_referencesRevision = 0;
    m_referencesCursorPosition = 0;
    connect(&m_referencesWatcher, SIGNAL(finished()), SLOT(markSymbolsNow()));
con's avatar
con committed
447 448
}

449
CPPEditorWidget::~CPPEditorWidget()
con's avatar
con committed
450
{
Roberto Raggi's avatar
Roberto Raggi committed
451 452
    m_semanticHighlighter->abort();
    m_semanticHighlighter->wait();
453 454 455 456 457 458

    ++numberOfClosedEditors;
    if (numberOfClosedEditors == 5) {
        m_modelManager->GC();
        numberOfClosedEditors = 0;
    }
con's avatar
con committed
459 460
}

461
TextEditor::BaseTextEditor *CPPEditorWidget::createEditor()
con's avatar
con committed
462
{
463
    CPPEditor *editable = new CPPEditor(this);
con's avatar
con committed
464 465 466 467
    createToolBar(editable);
    return editable;
}

468
void CPPEditorWidget::createToolBar(CPPEditor *editor)
con's avatar
con committed
469
{
Kai Koehne's avatar
Kai Koehne committed
470 471
    m_outlineCombo = new QComboBox;
    m_outlineCombo->setMinimumContentsLength(22);
472 473

    // Make the combo box prefer to expand
Kai Koehne's avatar
Kai Koehne committed
474
    QSizePolicy policy = m_outlineCombo->sizePolicy();
475
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
Kai Koehne's avatar
Kai Koehne committed
476
    m_outlineCombo->setSizePolicy(policy);
477

Kai Koehne's avatar
Kai Koehne committed
478 479 480 481
    QTreeView *outlineView = new OverviewTreeView;
    outlineView->header()->hide();
    outlineView->setItemsExpandable(false);
    m_outlineCombo->setView(outlineView);
482
    m_outlineCombo->setMaxVisibleItems(40);
con's avatar
con committed
483

Kai Koehne's avatar
Kai Koehne committed
484 485 486
    m_outlineModel = new OverviewModel(this);
    m_proxyModel = new OverviewProxyModel(m_outlineModel, this);
    if (CppPlugin::instance()->sortedOutline())
487 488
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
Kai Koehne's avatar
Kai Koehne committed
489
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedOutline()
490 491
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
Kai Koehne's avatar
Kai Koehne committed
492
    m_outlineCombo->setModel(m_proxyModel);
493

Kai Koehne's avatar
Kai Koehne committed
494 495
    m_outlineCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort Alphabetically"), m_outlineCombo);
496
    m_sortAction->setCheckable(true);
Kai Koehne's avatar
Kai Koehne committed
497 498 499
    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
500

501 502 503 504 505
    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
506 507 508 509
    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
510

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
511 512 513 514 515
    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
516 517 518
    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()));
519
    connect(document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
520 521 522

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

Roberto Raggi's avatar
Roberto Raggi committed
523 524 525 526 527

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

528 529
    connect(m_semanticHighlighter, SIGNAL(changed(CppEditor::Internal::SemanticInfo)),
            this, SLOT(updateSemanticInfo(CppEditor::Internal::SemanticInfo)));
Roberto Raggi's avatar
Roberto Raggi committed
530

531
    editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, m_outlineCombo);
con's avatar
con committed
532 533
}

534
void CPPEditorWidget::paste()
mae's avatar
mae committed
535
{
536
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
537
        BaseTextEditorWidget::paste();
mae's avatar
mae committed
538 539 540 541
        return;
    }

    startRename();
542
    BaseTextEditorWidget::paste();
mae's avatar
mae committed
543 544 545
    finishRename();
}

546
void CPPEditorWidget::cut()
mae's avatar
mae committed
547
{
548
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
549
        BaseTextEditorWidget::cut();
mae's avatar
mae committed
550 551 552 553
        return;
    }

    startRename();
554
    BaseTextEditorWidget::cut();
mae's avatar
mae committed
555 556 557
    finishRename();
}

558
CppModelManagerInterface *CPPEditorWidget::modelManager() const
559 560 561 562
{
    return m_modelManager;
}

563
void CPPEditorWidget::setMimeType(const QString &mt)
564
{
565
    BaseTextEditorWidget::setMimeType(mt);
566 567 568
    setObjCEnabled(mt == CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE);
}

569
void CPPEditorWidget::setObjCEnabled(bool onoff)
570 571 572 573
{
    m_objcEnabled = onoff;
}

574
bool CPPEditorWidget::isObjCEnabled() const
575 576
{ return m_objcEnabled; }

577
void CPPEditorWidget::startRename()
mae's avatar
mae committed
578 579 580 581
{
    m_inRenameChanged = false;
}

582
void CPPEditorWidget::finishRename()
mae's avatar
mae committed
583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612
{
    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;
}

613
void CPPEditorWidget::abortRename()
614
{
615
    if (m_currentRenameSelection <= NoCurrentRenameSelection)
mae's avatar
mae committed
616
        return;
617
    m_renameSelections[m_currentRenameSelection].format = m_occurrencesFormat;
618
    m_currentRenameSelection = NoCurrentRenameSelection;
mae's avatar
mae committed
619 620
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
621 622 623
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
}

624
void CPPEditorWidget::rehighlight(bool force)
625 626 627 628 629
{
    const SemanticHighlighter::Source source = currentSource(force);
    m_semanticHighlighter->rehighlight(source);
}

630
void CPPEditorWidget::onDocumentUpdated(Document::Ptr doc)
con's avatar
con committed
631 632 633 634
{
    if (doc->fileName() != file()->fileName())
        return;

635 636 637
    if (doc->editorRevision() != editorRevision())
        return;

Roberto Raggi's avatar
Roberto Raggi committed
638 639
    if (! m_initialized) {
        m_initialized = true;
640
        rehighlight(/* force = */ true);
Roberto Raggi's avatar
Roberto Raggi committed
641 642
    }

643
    m_updateOutlineTimer->start();
con's avatar
con committed
644 645
}

646
const Macro *CPPEditorWidget::findCanonicalMacro(const QTextCursor &cursor, Document::Ptr doc) const
Christian Kamm's avatar
Christian Kamm committed
647 648 649 650 651 652 653 654 655 656 657 658 659 660 661
{
    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;
}
662

663
void CPPEditorWidget::findUsages()
664
{
665
    SemanticInfo info = m_lastSemanticInfo;
666
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
667
    info.snapshot.insert(info.doc);
668

669
    CanonicalSymbol cs(this, info);
670 671 672 673
    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
674
        m_modelManager->findMacroUsages(*macro);
675
    }
676 677
}

678

679
void CPPEditorWidget::renameUsagesNow(const QString &replacement)
680 681
{
    SemanticInfo info = m_lastSemanticInfo;
682
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
683 684 685
    info.snapshot.insert(info.doc);

    CanonicalSymbol cs(this, info);
686 687
    if (Symbol *canonicalSymbol = cs(textCursor()))
        if (canonicalSymbol->identifier() != 0)
688 689 690
            m_modelManager->renameUsages(canonicalSymbol, cs.context(), replacement);
}

691
void CPPEditorWidget::renameUsages()
692
{
693 694 695
    renameUsagesNow();
}

696
void CPPEditorWidget::markSymbolsNow()
697
{
698 699 700 701 702 703
    if (m_references.isCanceled())
        return;
    else if (m_referencesCursorPosition != position())
        return;
    else if (m_referencesRevision != editorRevision())
        return;
704

705 706 707
    const SemanticInfo info = m_lastSemanticInfo;
    TranslationUnit *unit = info.doc->translationUnit();
    const QList<int> result = m_references.result();
708 709 710

    QList<QTextEdit::ExtraSelection> selections;

711 712 713
    foreach (int index, result) {
        unsigned line, column;
        unit->getTokenPosition(index, &line, &column);
714

715 716
        if (column)
            --column;  // adjust the column position.
717

718
        const int len = unit->tokenAt(index).f.length;
719

720 721 722
        QTextCursor cursor(document()->findBlockByNumber(line - 1));
        cursor.setPosition(cursor.position() + column);
        cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
723

724 725 726 727
        QTextEdit::ExtraSelection sel;
        sel.format = m_occurrencesFormat;
        sel.cursor = cursor;
        selections.append(sel);
728

Roberto Raggi's avatar
Roberto Raggi committed
729
    }
730 731

    setExtraSelections(CodeSemanticsSelection, selections);
Roberto Raggi's avatar
Roberto Raggi committed
732 733
}

734
static QList<int> lazyFindReferences(Scope *scope, QString code, Document::Ptr doc, Snapshot snapshot)
735 736
{
    TypeOfExpression typeOfExpression;
737 738 739
    snapshot.insert(doc);
    typeOfExpression.init(doc, snapshot);
    if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression)) {
740
        return CppModelManagerInterface::instance()->references(canonicalSymbol, typeOfExpression.context());
741
    }
742 743 744
    return QList<int>();
}

745
void CPPEditorWidget::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
746 747 748 749 750 751 752 753 754 755 756 757
{
    abortRename();

    if (! info.doc)
        return;

    CanonicalSymbol cs(this, info);
    QString expression;
    if (Scope *scope = cs.getScopeAndExpression(this, info, tc, &expression)) {
        m_references.cancel();
        m_referencesRevision = info.revision;
        m_referencesCursorPosition = position();
758
        m_references = QtConcurrent::run(&lazyFindReferences, scope, expression, info.doc, info.snapshot);
759
        m_referencesWatcher.setFuture(m_references);
760 761 762 763 764
    } else {
        const QList<QTextEdit::ExtraSelection> selections = extraSelections(CodeSemanticsSelection);

        if (! selections.isEmpty())
            setExtraSelections(CodeSemanticsSelection, QList<QTextEdit::ExtraSelection>());
765 766 767
    }
}

768
void CPPEditorWidget::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
769
{
Roberto Raggi's avatar
Roberto Raggi committed
770
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
mae's avatar
mae committed
771
    abortRename();
772

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
773 774 775 776 777
    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()
778
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
779
            m_currentRenameSelection = i;
mae's avatar
mae committed
780 781 782 783 784
            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());
785
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
786 787 788 789
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
790 791

    if (m_renameSelections.isEmpty())
792
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
793 794
}

795
void CPPEditorWidget::onContentsChanged(int position, int charsRemoved, int charsAdded)
796
{
797 798
    Q_UNUSED(position)

799
    if (m_currentRenameSelection == NoCurrentRenameSelection || m_inRename)
800 801
        return;

mae's avatar
mae committed
802 803 804 805 806 807 808 809 810 811 812
    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)
813 814 815 816 817 818
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

819
void CPPEditorWidget::updateFileName()
con's avatar
con committed
820 821
{ }

822
void CPPEditorWidget::jumpToOutlineElement(int)
con's avatar
con committed
823
{
Kai Koehne's avatar
Kai Koehne committed
824 825
    QModelIndex index = m_proxyModel->mapToSource(m_outlineCombo->view()->currentIndex());
    Symbol *symbol = m_outlineModel->symbolFromIndex(index);
con's avatar
con committed
826 827 828
    if (! symbol)
        return;

829
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
830 831
}

832
void CPPEditorWidget::setSortedOutline(bool sort)
833
{
Kai Koehne's avatar
Kai Koehne committed
834
    if (sort != sortedOutline()) {
835 836 837 838 839 840 841
        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
842
        updateOutlineIndexNow();
843 844 845
    }
}

846
bool CPPEditorWidget::sortedOutline() const
847 848 849 850
{
    return (m_proxyModel->sortColumn() == 0);
}

851
void CPPEditorWidget::updateOutlineNow()
852 853 854 855 856 857 858 859 860 861 862 863
{
    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
864
    m_outlineModel->rebuild(document);
865

Kai Koehne's avatar
Kai Koehne committed
866
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_outlineCombo->view());
867
    treeView->sync();
Kai Koehne's avatar
Kai Koehne committed
868
    updateOutlineIndexNow();
869 870
}

871
void CPPEditorWidget::updateOutlineIndex()
con's avatar
con committed
872
{
Kai Koehne's avatar
Kai Koehne committed
873
    m_updateOutlineIndexTimer->start();
Roberto Raggi's avatar
Roberto Raggi committed
874 875
}

876
void CPPEditorWidget::highlightUses(const QList<SemanticInfo::Use> &uses,
877
                              const SemanticInfo &semanticInfo,
878
                              QList<QTextEdit::ExtraSelection> *selections)
Roberto Raggi's avatar
Roberto Raggi committed
879
{
Roberto Raggi's avatar
Roberto Raggi committed
880
    bool isUnused = false;
Roberto Raggi's avatar
Roberto Raggi committed
881 882

    if (uses.size() == 1)
Roberto Raggi's avatar
Roberto Raggi committed
883
        isUnused = true;
Roberto Raggi's avatar
Roberto Raggi committed
884

Roberto Raggi's avatar
Roberto Raggi committed
885
    foreach (const SemanticInfo::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
886
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
887

Roberto Raggi's avatar
Roberto Raggi committed
888
        if (isUnused)
889
            sel.format = m_occurrencesUnusedFormat;
Roberto Raggi's avatar
Roberto Raggi committed
890
        else
891
            sel.format = m_occurrencesFormat;
Roberto Raggi's avatar
Roberto Raggi committed
892

893
        const int anchor = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;
Roberto Raggi's avatar
Roberto Raggi committed
894
        const int position = anchor + use.length;
Roberto Raggi's avatar
Roberto Raggi committed
895

896
        sel.cursor = QTextCursor(document());
Roberto Raggi's avatar
Roberto Raggi committed
897 898
        sel.cursor.setPosition(anchor);
        sel.cursor.setPosition(position, QTextCursor::KeepAnchor);
Roberto Raggi's avatar
Roberto Raggi committed
899

900 901 902 903 904 905 906 907
        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
908
        selections->append(sel);
Roberto Raggi's avatar
Roberto Raggi committed
909 910 911
    }
}

912
void CPPEditorWidget::updateOutlineIndexNow()
Roberto Raggi's avatar
Roberto Raggi committed
913
{
Kai Koehne's avatar
Kai Koehne committed
914
    if (!m_outlineModel->document())
915 916
        return;

Kai Koehne's avatar
Kai Koehne committed
917 918
    if (m_outlineModel->document()->editorRevision() != editorRevision()) {
        m_updateOutlineIndexTimer->start();
919 920 921
        return;
    }

Kai Koehne's avatar
Kai Koehne committed
922
    m_updateOutlineIndexTimer->stop();
923

Kai Koehne's avatar
Kai Koehne committed
924 925
    m_outlineModelIndex = QModelIndex(); //invalidate
    QModelIndex comboIndex = outlineModelIndex();
926

con's avatar
con committed
927

928
    if (comboIndex.isValid()) {
Kai Koehne's avatar
Kai Koehne committed
929
        bool blocked = m_outlineCombo->blockSignals(true);
930 931 932

        // 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
933
        m_outlineCombo->setCurrentIndex(m_proxyModel->mapFromSource(comboIndex).row());
934 935
        m_outlineCombo->setRootModelIndex(QModelIndex());

Kai Koehne's avatar
Kai Koehne committed
936
        updateOutlineToolTip();
937 938

        m_outlineCombo->blockSignals(blocked);
con's avatar
con committed
939
    }
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
940 941
}

942
void CPPEditorWidget::updateOutlineToolTip()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
943
{
Kai Koehne's avatar
Kai Koehne committed
944
    m_outlineCombo->setToolTip(m_outlineCombo->currentText());
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
945 946
}

947
void CPPEditorWidget::updateUses()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
948
{
949 950
    if (editorRevision() != m_highlightRevision)
        m_highlighter.cancel();
mae's avatar
mae committed
951
    m_updateUsesTimer->start();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
952 953
}

954
void CPPEditorWidget::updateUsesNow()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
955
{
956
    if (m_currentRenameSelection != NoCurrentRenameSelection)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
957 958
        return;