cppeditor.cpp 67.4 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2009 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"
34
#include "cppquickfix.h"
Roberto Raggi's avatar
Roberto Raggi committed
35 36
#include <cpptools/cpptoolsplugin.h>

con's avatar
con committed
37
#include <AST.h>
38
#include <Control.h>
con's avatar
con committed
39 40 41 42 43 44 45 46
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <Control.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 55
#include <cplusplus/LookupContext.h>
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
56
#include <cplusplus/TokenUnderCursor.h>
con's avatar
con committed
57
#include <cplusplus/TypeOfExpression.h>
58
#include <cplusplus/MatchingText.h>
59
#include <cplusplus/BackwardsScanner.h>
60
#include <cplusplus/FastPreprocessor.h>
61
#include <cplusplus/CppBindings.h>
62

con's avatar
con committed
63 64 65 66
#include <cpptools/cppmodelmanagerinterface.h>

#include <coreplugin/icore.h>
#include <coreplugin/uniqueidmanager.h>
67
#include <coreplugin/actionmanager/actionmanager.h>
con's avatar
con committed
68 69
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/editormanager/editormanager.h>
dt's avatar
dt committed
70
#include <coreplugin/mimedatabase.h>
71
#include <utils/uncommentselection.h>
72
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
73 74 75 76 77 78 79 80 81 82
#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>
83
#include <QtCore/QStack>
84
#include <QtCore/QSettings>
85
#include <QtCore/QSignalMapper>
con's avatar
con committed
86
#include <QtGui/QAction>
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
87
#include <QtGui/QApplication>
88
#include <QtGui/QHeaderView>
con's avatar
con committed
89 90 91 92 93
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
con's avatar
con committed
94
#include <QtGui/QToolBar>
con's avatar
con committed
95
#include <QtGui/QTreeView>
96
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
97

98 99
#include <sstream>

Roberto Raggi's avatar
Roberto Raggi committed
100
enum {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
101 102
    UPDATE_METHOD_BOX_INTERVAL = 150,
    UPDATE_USES_INTERVAL = 300
Roberto Raggi's avatar
Roberto Raggi committed
103 104
};

Roberto Raggi's avatar
Roberto Raggi committed
105 106 107
using namespace CPlusPlus;
using namespace CppEditor::Internal;

con's avatar
con committed
108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126
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()));
    }
};

Roberto Raggi's avatar
Roberto Raggi committed
127
class FindScope: protected SymbolVisitor
128
{
Roberto Raggi's avatar
Roberto Raggi committed
129 130 131 132
    TranslationUnit *_unit;
    Scope *_scope;
    unsigned _line;
    unsigned _column;
133

Roberto Raggi's avatar
Roberto Raggi committed
134 135 136
public:
    Scope *operator()(unsigned line, unsigned column,
                      Symbol *root, TranslationUnit *unit)
137
    {
Roberto Raggi's avatar
Roberto Raggi committed
138 139 140 141 142 143 144
        _unit = unit;
        _scope = 0;
        _line = line;
        _column = column;
        accept(root);
        return _scope;
    }
145

Roberto Raggi's avatar
Roberto Raggi committed
146 147
private:
    using SymbolVisitor::visit;
148

Roberto Raggi's avatar
Roberto Raggi committed
149 150
    virtual bool preVisit(Symbol *)
    { return ! _scope; }
151

Roberto Raggi's avatar
Roberto Raggi committed
152 153
    virtual bool visit(Block *block)
    { return processScope(block->members()); }
154

Roberto Raggi's avatar
Roberto Raggi committed
155 156
    virtual bool visit(Function *function)
    { return processScope(function->members()); }
157

Roberto Raggi's avatar
Roberto Raggi committed
158 159 160 161
    bool processScope(Scope *scope)
    {
        if (_scope || ! scope)
            return false;
162

Roberto Raggi's avatar
Roberto Raggi committed
163 164
        for (unsigned i = 0; i < scope->symbolCount(); ++i) {
            accept(scope->symbolAt(i));
165

Roberto Raggi's avatar
Roberto Raggi committed
166 167 168
            if (_scope)
                return false;
        }
169

Roberto Raggi's avatar
Roberto Raggi committed
170 171
        unsigned startOffset = scope->owner()->startOffset();
        unsigned endOffset = scope->owner()->endOffset();
172

Roberto Raggi's avatar
Roberto Raggi committed
173 174
        unsigned startLine, startColumn;
        unsigned endLine, endColumn;
175

Roberto Raggi's avatar
Roberto Raggi committed
176 177
        _unit->getPosition(startOffset, &startLine, &startColumn);
        _unit->getPosition(endOffset, &endLine, &endColumn);
178

Roberto Raggi's avatar
Roberto Raggi committed
179 180 181
        if (_line > startLine || (_line == startLine && _column >= startColumn)) {
            if (_line < endLine || (_line == endLine && _column < endColumn)) {
                _scope = scope;
182 183
            }
        }
Roberto Raggi's avatar
Roberto Raggi committed
184 185 186 187 188

        return false;
    }
};

189
class FindLocalUses: protected ASTVisitor
Roberto Raggi's avatar
Roberto Raggi committed
190 191
{
    Scope *_functionScope;
192 193
    FindScope findScope;

194
public:
195 196
    FindLocalUses(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit), hasD(false), hasQ(false)
197 198
    { }

Roberto Raggi's avatar
Roberto Raggi committed
199
    // local and external uses.
Roberto Raggi's avatar
Roberto Raggi committed
200
    SemanticInfo::LocalUseMap localUses;
201 202
    bool hasD;
    bool hasQ;
Roberto Raggi's avatar
Roberto Raggi committed
203 204

    void operator()(FunctionDefinitionAST *ast)
205
    {
Roberto Raggi's avatar
Roberto Raggi committed
206 207
        localUses.clear();

208 209 210 211 212 213 214 215 216
        if (ast && ast->symbol) {
            _functionScope = ast->symbol->members();
            accept(ast);
        }
    }

protected:
    using ASTVisitor::visit;

Roberto Raggi's avatar
Roberto Raggi committed
217
    bool findMember(Scope *scope, NameAST *ast, unsigned line, unsigned column)
218
    {
Roberto Raggi's avatar
Roberto Raggi committed
219 220 221
        if (! (ast && ast->name))
            return false;

Roberto Raggi's avatar
Roberto Raggi committed
222
        const Identifier *id = ast->name->identifier();
223 224 225 226 227

        if (scope) {
            for (Symbol *member = scope->lookat(id); member; member = member->next()) {
                if (member->identifier() != id)
                    continue;
Roberto Raggi's avatar
typo  
Roberto Raggi committed
228
                else if (member->line() < line || (member->line() == line && member->column() <= column)) {
Roberto Raggi's avatar
Roberto Raggi committed
229
                    localUses[member].append(SemanticInfo::Use(line, column, id->size()));
230 231 232 233 234 235 236 237
                    return true;
                }
            }
        }

        return false;
    }

238 239 240 241 242 243
    void searchUsesInTemplateArguments(NameAST *name)
    {
        if (! name)
            return;

        else if (TemplateIdAST *template_id = name->asTemplateId()) {
Roberto Raggi's avatar
Roberto Raggi committed
244
            for (TemplateArgumentListAST *it = template_id->template_argument_list; it; it = it->next) {
245
                accept(it->value);
246 247 248 249
            }
        }
    }

250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278
    virtual bool visit(SimpleNameAST *ast)
    {
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        Scope *scope = findScope(line, column,
                                 _functionScope->owner(),
                                 translationUnit());

        while (scope) {
            if (scope->isFunctionScope()) {
                Function *fun = scope->owner()->asFunction();
                if (findMember(fun->members(), ast, line, column))
                    return false;
                else if (findMember(fun->arguments(), ast, line, column))
                    return false;
            } else if (scope->isBlockScope()) {
                if (findMember(scope, ast, line, column))
                    return false;
            } else {
                break;
            }

            scope = scope->enclosingScope();
        }

        return false;
    }

Roberto Raggi's avatar
Roberto Raggi committed
279
    virtual bool visit(TemplateIdAST *ast)
280
    {
Roberto Raggi's avatar
Roberto Raggi committed
281
        for (TemplateArgumentListAST *arg = ast->template_argument_list; arg; arg = arg->next)
282
            accept(arg->value);
283

Roberto Raggi's avatar
Roberto Raggi committed
284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        Scope *scope = findScope(line, column,
                                 _functionScope->owner(),
                                 translationUnit());

        while (scope) {
            if (scope->isFunctionScope()) {
                Function *fun = scope->owner()->asFunction();
                if (findMember(fun->members(), ast, line, column))
                    return false;
                else if (findMember(fun->arguments(), ast, line, column))
                    return false;
            } else if (scope->isBlockScope()) {
                if (findMember(scope, ast, line, column))
                    return false;
            } else {
                break;
            }

            scope = scope->enclosingScope();
        }

        return false;
    }

    virtual bool visit(QualifiedNameAST *ast)
    {
Roberto Raggi's avatar
Roberto Raggi committed
313
        for (NestedNameSpecifierListAST *it = ast->nested_name_specifier_list; it; it = it->next)
Roberto Raggi's avatar
Roberto Raggi committed
314
            searchUsesInTemplateArguments(it->value->class_or_namespace_name);
Roberto Raggi's avatar
Roberto Raggi committed
315

316
        searchUsesInTemplateArguments(ast->unqualified_name);
317 318 319 320 321 322
        return false;
    }

    virtual bool visit(PostfixExpressionAST *ast)
    {
        accept(ast->base_expression);
Roberto Raggi's avatar
Roberto Raggi committed
323
        for (PostfixListAST *it = ast->postfix_expression_list; it; it = it->next) {
Roberto Raggi's avatar
Roberto Raggi committed
324 325
            PostfixAST *fx = it->value;
            if (fx->asMemberAccess() != 0)
326
                continue; // skip members
Roberto Raggi's avatar
Roberto Raggi committed
327
            accept(fx);
328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359
        }
        return false;
    }

    virtual bool visit(ElaboratedTypeSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(ClassSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(EnumSpecifierAST *)
    {
        // ### template args
        return false;
    }

    virtual bool visit(UsingDirectiveAST *)
    {
        return false;
    }

    virtual bool visit(UsingAST *ast)
    {
        accept(ast->name);
        return false;
    }
360

361 362 363 364 365 366 367 368 369 370
    virtual bool visit(QtMemberDeclarationAST *ast)
    {
        if (tokenKind(ast->q_token) == T_Q_D)
            hasD = true;
        else
            hasQ = true;

        return true;
    }

371 372 373 374 375 376 377 378 379 380
    virtual bool visit(ExpressionOrDeclarationStatementAST *ast)
    {
        accept(ast->declaration);
        return false;
    }

    virtual bool visit(FunctionDeclaratorAST *ast)
    {
        accept(ast->parameters);

Roberto Raggi's avatar
Roberto Raggi committed
381
        for (SpecifierListAST *it = ast->cv_qualifier_list; it; it = it->next)
Roberto Raggi's avatar
Roberto Raggi committed
382
            accept(it->value);
383 384 385 386 387

        accept(ast->exception_specification);

        return false;
    }
388 389 390
};


Roberto Raggi's avatar
Roberto Raggi committed
391 392 393 394 395 396 397
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    unsigned _line;
    unsigned _column;
    FunctionDefinitionAST *_functionDefinition;

public:
Roberto Raggi's avatar
Roberto Raggi committed
398 399
    FunctionDefinitionUnderCursor(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
Roberto Raggi's avatar
Roberto Raggi committed
400
          _line(0), _column(0)
Roberto Raggi's avatar
Roberto Raggi committed
401 402
    { }

Roberto Raggi's avatar
Roberto Raggi committed
403
    FunctionDefinitionAST *operator()(AST *ast, unsigned line, unsigned column)
Roberto Raggi's avatar
Roberto Raggi committed
404 405
    {
        _functionDefinition = 0;
Roberto Raggi's avatar
Roberto Raggi committed
406 407
        _line = line;
        _column = column;
Roberto Raggi's avatar
Roberto Raggi committed
408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442
        accept(ast);
        return _functionDefinition;
    }

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

        else if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
            unsigned startLine, startColumn;
            unsigned endLine, endColumn;
            getTokenStartPosition(def->firstToken(), &startLine, &startColumn);
            getTokenEndPosition(def->lastToken() - 1, &endLine, &endColumn);

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

        return true;
    }

};

class ProcessDeclarators: protected ASTVisitor
{
    QList<DeclaratorIdAST *> _declarators;
    bool _visitFunctionDeclarator;

public:
Roberto Raggi's avatar
Roberto Raggi committed
443 444 445
    ProcessDeclarators(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
          _visitFunctionDeclarator(true)
Roberto Raggi's avatar
Roberto Raggi committed
446 447 448 449 450 451 452 453 454
    { }

    QList<DeclaratorIdAST *> operator()(FunctionDefinitionAST *ast)
    {
        _declarators.clear();

        if (ast) {
            if (ast->declarator) {
                _visitFunctionDeclarator = true;
Roberto Raggi's avatar
Roberto Raggi committed
455
                accept(ast->declarator->postfix_declarator_list);
Roberto Raggi's avatar
Roberto Raggi committed
456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477
            }

            _visitFunctionDeclarator = false;
            accept(ast->function_body);
        }

        return _declarators;
    }

protected:
    using ASTVisitor::visit;

    virtual bool visit(FunctionDeclaratorAST *)
    { return _visitFunctionDeclarator; }

    virtual bool visit(DeclaratorIdAST *ast)
    {
        _declarators.append(ast);
        return true;
    }
};

478 479
class FindFunctionDefinitions: protected SymbolVisitor
{
Roberto Raggi's avatar
Roberto Raggi committed
480
    const Name *_declarationName;
481 482 483 484 485 486 487 488
    QList<Function *> *_functions;

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

Roberto Raggi's avatar
Roberto Raggi committed
489
    void operator()(const Name *declarationName, Scope *globals,
490 491 492 493 494 495 496 497 498 499 500 501 502 503 504
                    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
505 506
        const Name *name = function->name();
        if (const QualifiedNameId *q = name->asQualifiedNameId())
507 508 509 510 511 512 513 514 515
            name = q->unqualifiedNameId();

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

        return false;
    }
};

con's avatar
con committed
516 517
} // end of anonymous namespace

Roberto Raggi's avatar
Roberto Raggi committed
518
static const QualifiedNameId *qualifiedNameIdForSymbol(Symbol *s, const LookupContext &context)
con's avatar
con committed
519
{
Roberto Raggi's avatar
Roberto Raggi committed
520
    const Name *symbolName = s->name();
con's avatar
con committed
521 522 523
    if (! symbolName)
        return 0; // nothing to do.

Roberto Raggi's avatar
Roberto Raggi committed
524
    QVector<const Name *> names;
con's avatar
con committed
525 526 527 528

    for (Scope *scope = s->scope(); scope; scope = scope->enclosingScope()) {
        if (scope->isClassScope() || scope->isNamespaceScope()) {
            if (scope->owner() && scope->owner()->name()) {
Roberto Raggi's avatar
Roberto Raggi committed
529 530
                const Name *ownerName = scope->owner()->name();
                if (const QualifiedNameId *q = ownerName->asQualifiedNameId()) {
con's avatar
con committed
531 532 533 534 535 536 537 538 539 540
                    for (unsigned i = 0; i < q->nameCount(); ++i) {
                        names.prepend(q->nameAt(i));
                    }
                } else {
                    names.prepend(ownerName);
                }
            }
        }
    }

Roberto Raggi's avatar
Roberto Raggi committed
541
    if (const QualifiedNameId *q = symbolName->asQualifiedNameId()) {
con's avatar
con committed
542 543 544 545 546 547 548 549 550 551 552
        for (unsigned i = 0; i < q->nameCount(); ++i) {
            names.append(q->nameAt(i));
        }
    } else {
        names.append(symbolName);
    }

    return context.control()->qualifiedNameId(names.constData(), names.size());
}

CPPEditorEditable::CPPEditorEditable(CPPEditor *editor)
hjk's avatar
hjk committed
553
    : BaseTextEditorEditable(editor)
con's avatar
con committed
554
{
555 556 557 558
    Core::UniqueIDManager *uidm = Core::UniqueIDManager::instance();
    m_context << uidm->uniqueIdentifier(CppEditor::Constants::C_CPPEDITOR);
    m_context << uidm->uniqueIdentifier(ProjectExplorer::Constants::LANG_CXX);
    m_context << uidm->uniqueIdentifier(TextEditor::Constants::C_TEXTEDITOR);
con's avatar
con committed
559 560
}

561 562
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
563
    , m_currentRenameSelection(-1)
564
    , m_inRename(false)
mae's avatar
mae committed
565 566
    , m_inRenameChanged(false)
    , m_firstRenameChange(false)
567
    , m_allowSkippingOfBlockEnd(false)
con's avatar
con committed
568
{
Roberto Raggi's avatar
Roberto Raggi committed
569
    m_initialized = false;
Roberto Raggi's avatar
Roberto Raggi committed
570 571 572 573 574
    qRegisterMetaType<SemanticInfo>("SemanticInfo");

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

con's avatar
con committed
575 576
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
577
    setCodeFoldingSupported(true);
con's avatar
con committed
578
    setCodeFoldingVisible(true);
579
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
580

Roberto Raggi's avatar
Roberto Raggi committed
581
    m_modelManager = CppTools::CppModelManagerInterface::instance();
con's avatar
con committed
582 583 584 585 586 587 588 589 590

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

CPPEditor::~CPPEditor()
{
591 592
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));

Roberto Raggi's avatar
Roberto Raggi committed
593 594
    m_semanticHighlighter->abort();
    m_semanticHighlighter->wait();
con's avatar
con committed
595 596 597 598 599 600 601 602 603 604 605 606 607
}

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

void CPPEditor::createToolBar(CPPEditorEditable *editable)
{
    m_methodCombo = new QComboBox;
    m_methodCombo->setMinimumContentsLength(22);
608 609 610 611 612 613

    // Make the combo box prefer to expand
    QSizePolicy policy = m_methodCombo->sizePolicy();
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
    m_methodCombo->setSizePolicy(policy);

614
    QTreeView *methodView = new OverviewTreeView;
con's avatar
con committed
615 616 617 618 619 620
    methodView->header()->hide();
    methodView->setItemsExpandable(false);
    m_methodCombo->setView(methodView);
    m_methodCombo->setMaxVisibleItems(20);

    m_overviewModel = new OverviewModel(this);
621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636
    m_proxyModel = new QSortFilterProxyModel(this);
    m_proxyModel->setSourceModel(m_overviewModel);
    if (CppPlugin::instance()->sortedMethodOverview())
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedMethodOverview()
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
    m_methodCombo->setModel(m_proxyModel);

    m_methodCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort alphabetically"), m_methodCombo);
    m_sortAction->setCheckable(true);
    m_sortAction->setChecked(sortedMethodOverview());
    connect(m_sortAction, SIGNAL(toggled(bool)), CppPlugin::instance(), SLOT(setSortedMethodOverview(bool)));
    m_methodCombo->addAction(m_sortAction);
con's avatar
con committed
637

Roberto Raggi's avatar
Roberto Raggi committed
638 639 640 641 642
    m_updateMethodBoxTimer = new QTimer(this);
    m_updateMethodBoxTimer->setSingleShot(true);
    m_updateMethodBoxTimer->setInterval(UPDATE_METHOD_BOX_INTERVAL);
    connect(m_updateMethodBoxTimer, SIGNAL(timeout()), this, SLOT(updateMethodBoxIndexNow()));

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
643 644 645 646 647
    m_updateUsesTimer = new QTimer(this);
    m_updateUsesTimer->setSingleShot(true);
    m_updateUsesTimer->setInterval(UPDATE_USES_INTERVAL);
    connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

con's avatar
con committed
648 649
    connect(m_methodCombo, SIGNAL(activated(int)), this, SLOT(jumpToMethod(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateMethodBoxIndex()));
650
    connect(m_methodCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateMethodBoxToolTip()));
651
    connect(document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
652 653 654

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

Roberto Raggi's avatar
Roberto Raggi committed
655 656 657 658 659 660 661 662

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

    connect(m_semanticHighlighter, SIGNAL(changed(SemanticInfo)),
            this, SLOT(updateSemanticInfo(SemanticInfo)));

con's avatar
con committed
663
    QToolBar *toolBar = static_cast<QToolBar*>(editable->toolBar());
con's avatar
con committed
664
    QList<QAction*> actions = toolBar->actions();
665 666
    QWidget *w = toolBar->widgetForAction(actions.first());
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_methodCombo, 1);
con's avatar
con committed
667 668
}

669 670 671 672 673 674 675
void CPPEditor::inAllRenameSelections(EditOperation operation,
                                      const QTextEdit::ExtraSelection &currentRenameSelection,
                                      QTextCursor cursor,
                                      const QString &text)
{
    cursor.beginEditBlock();

676 677 678
    const int startOffset = cursor.selectionStart() - currentRenameSelection.cursor.anchor();
    const int endOffset = cursor.selectionEnd() - currentRenameSelection.cursor.anchor();
    const int length = endOffset - startOffset;
679 680 681 682 683

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        QTextEdit::ExtraSelection &s = m_renameSelections[i];
        int pos = s.cursor.anchor();
        int endPos = s.cursor.position();
684 685 686

        s.cursor.setPosition(pos + startOffset);
        s.cursor.setPosition(pos + endOffset, QTextCursor::KeepAnchor);
687 688 689 690

        switch (operation) {
        case DeletePreviousChar:
            s.cursor.deletePreviousChar();
691
            endPos -= qMax(1, length);
692 693 694
            break;
        case DeleteChar:
            s.cursor.deleteChar();
695
            endPos -= qMax(1, length);
696 697 698
            break;
        case InsertText:
            s.cursor.insertText(text);
699
            endPos += text.length() - length;
700 701 702 703 704 705 706 707 708 709 710 711 712
            break;
        }

        s.cursor.setPosition(pos);
        s.cursor.setPosition(endPos, QTextCursor::KeepAnchor);
    }

    cursor.endEditBlock();

    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
    setTextCursor(cursor);
}

mae's avatar
mae committed
713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772
void CPPEditor::paste()
{
    if (m_currentRenameSelection == -1) {
        BaseTextEditor::paste();
        return;
    }

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

void CPPEditor::cut()
{
    if (m_currentRenameSelection == -1) {
        BaseTextEditor::cut();
        return;
    }

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

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;
}

773 774
void CPPEditor::abortRename()
{
mae's avatar
mae committed
775 776
    if (m_currentRenameSelection < 0)
        return;
777
    m_currentRenameSelection = -1;
mae's avatar
mae committed
778 779
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
780 781 782 783
    m_renameSelections.clear();
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
}

con's avatar
con committed
784 785 786 787 788
void CPPEditor::onDocumentUpdated(Document::Ptr doc)
{
    if (doc->fileName() != file()->fileName())
        return;

Roberto Raggi's avatar
Roberto Raggi committed
789 790 791 792 793 794 795
    if (! m_initialized) {
        m_initialized = true;

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

con's avatar
con committed
796
    m_overviewModel->rebuild(doc);
797 798
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_methodCombo->view());
    treeView->sync();
Roberto Raggi's avatar
Roberto Raggi committed
799
    updateMethodBoxIndexNow();
con's avatar
con committed
800 801
}

802 803 804
CPlusPlus::Symbol *CPPEditor::findCanonicalSymbol(const QTextCursor &cursor,
                                                  Document::Ptr doc,
                                                  const Snapshot &snapshot) const
Roberto Raggi's avatar
Roberto Raggi committed
805
{
806 807 808
    if (! doc)
        return 0;

809
    QTextCursor tc = cursor;
Roberto Raggi's avatar
Roberto Raggi committed
810 811
    int line, col;
    convertPosition(tc.position(), &line, &col);
812
    ++col; // 1-based line and 1-based column
Roberto Raggi's avatar
Roberto Raggi committed
813

814 815 816 817 818
    int pos = tc.position();
    while (document()->characterAt(pos).isLetterOrNumber() ||
           document()->characterAt(pos) == QLatin1Char('_'))
        ++pos;
    tc.setPosition(pos);
Roberto Raggi's avatar
Roberto Raggi committed
819 820 821

    ExpressionUnderCursor expressionUnderCursor;
    const QString code = expressionUnderCursor(tc);
822
    // qDebug() << "code:" << code;
Roberto Raggi's avatar
Roberto Raggi committed
823 824 825 826 827 828

    TypeOfExpression typeOfExpression;
    typeOfExpression.setSnapshot(snapshot);

    Symbol *lastVisibleSymbol = doc->findSymbolAt(line, col);

829 830 831
    const QList<LookupItem> results = typeOfExpression(code, doc,
                                                   lastVisibleSymbol,
                                                   TypeOfExpression::Preprocess);
Roberto Raggi's avatar
Roberto Raggi committed
832

833 834
    NamespaceBindingPtr glo = bind(doc, snapshot);
    Symbol *canonicalSymbol = LookupContext::canonicalSymbol(results, glo.data());
835

836 837 838
    return canonicalSymbol;
}

839 840

void CPPEditor::findUsages()
841 842
{    
    if (Symbol *canonicalSymbol = markSymbols()) {
843
        m_modelManager->findUsages(canonicalSymbol);
844
    }
845 846 847
}

void CPPEditor::renameUsages()
848
{
849 850 851
    renameUsagesNow();
}

852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
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();
}

875 876
void CPPEditor::hideRenameNotification()
{
877
    setShowWarningMessage(false);
878
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));
879 880 881 882
}

void CPPEditor::renameUsagesNow()
{
883
    if (Symbol *canonicalSymbol = markSymbols()) {
884
        if (canonicalSymbol->identifier() != 0) {
885 886 887 888 889 890
            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()));
            }
891 892 893

            m_modelManager->renameUsages(canonicalSymbol);
        }
894 895 896 897 898 899
    }
}

Symbol *CPPEditor::markSymbols()
{
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
900

mae's avatar
mae committed
901
    abortRename();
902 903 904 905 906

    QList<QTextEdit::ExtraSelection> selections;

    SemanticInfo info = m_lastSemanticInfo;

907 908 909
    Symbol *canonicalSymbol = findCanonicalSymbol(textCursor(), info.doc, info.snapshot);
    if (canonicalSymbol) {
        TranslationUnit *unit = info.doc->translationUnit();
910

911 912 913 914
        const QList<int> references = m_modelManager->references(canonicalSymbol, info.doc, info.snapshot);
        foreach (int index, references) {
            unsigned line, column;
            unit->getTokenPosition(index, &line, &column);
915

916 917
            if (column)
                --column;  // adjust the column position.
918

919
            const int len = unit->tokenAt(index).f.length;
920

921 922 923
            QTextCursor cursor(document()->findBlockByNumber(line - 1));
            cursor.setPosition(cursor.position() + column);
            cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
924

925 926 927 928
            QTextEdit::ExtraSelection sel;
            sel.format = m_occurrencesFormat;
            sel.cursor = cursor;
            selections.append(sel);
929
        }
Roberto Raggi's avatar
Roberto Raggi committed
930
    }
931 932 933

    setExtraSelections(CodeSemanticsSelection, selections);
    return canonicalSymbol;
Roberto Raggi's avatar
Roberto Raggi committed
934 935
}

936
void CPPEditor::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
937
{
Roberto Raggi's avatar
Roberto Raggi committed
938
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
mae's avatar
mae committed
939
    abortRename();
940

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
941 942 943 944 945
    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()
946
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
947
            m_currentRenameSelection = i;
mae's avatar
mae committed
948 949 950 951 952
            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());
953
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
954 955 956 957
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
958 959

    if (m_renameSelections.isEmpty())
960
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
961 962
}

963 964
void CPPEditor::onContentsChanged(int position, int charsRemoved, int charsAdded)
{
965 966
    Q_UNUSED(position)

mae's avatar
mae committed
967
    if (m_currentRenameSelection == -1 || m_inRename)
968 969
        return;

mae's avatar
mae committed
970 971 972 973 974 975 976 977 978 979 980
    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)
981 982 983 984 985 986
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

con's avatar
con committed
987 988 989 990 991
void CPPEditor::updateFileName()
{ }

void CPPEditor::jumpToMethod(int)
{
992
    QModelIndex index = m_proxyModel->mapToSource(m_methodCombo->view()->currentIndex());
con's avatar
con committed
993 994 995 996
    Symbol *symbol = m_overviewModel->symbolFromIndex(index);
    if (! symbol)
        return;

997
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
998 999
}

1000 1001 1002 1003 1004 1005 1006 1007 1008 1009
void CPPEditor::setSortedMethodOverview(bool sort)
{
    if (sort != sortedMethodOverview()) {
        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);
Roberto Raggi's avatar
Roberto Raggi committed
1010
        updateMethodBoxIndexNow();
1011 1012 1013 1014 1015 1016 1017 1018
    }
}

bool CPPEditor::sortedMethodOverview() const
{
    return (m_proxyModel->sortColumn() == 0);
}

con's avatar
con committed
1019 1020
void CPPEditor::updateMethodBoxIndex()
{
mae's avatar
mae committed
1021
    m_updateMethodBoxTimer->start();
Roberto Raggi's avatar
Roberto Raggi committed
1022 1023
}

1024
void CPPEditor::highlightUses(const QList<SemanticInfo::Use> &uses,
1025
                              const SemanticInfo &semanticInfo,
1026
                              QList<QTextEdit::ExtraSelection> *selections)
Roberto Raggi's avatar
Roberto Raggi committed
1027
{
Roberto Raggi's avatar
Roberto Raggi committed
1028
    bool isUnused = false;
Roberto Raggi's avatar
Roberto Raggi committed
1029 1030

    if (uses.size() == 1)
Roberto Raggi's avatar
Roberto Raggi committed
1031
        isUnused = true;
Roberto Raggi's avatar
Roberto Raggi committed
1032

Roberto Raggi's avatar
Roberto Raggi committed
1033
    foreach (const SemanticInfo::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
1034
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
1035

Roberto Raggi's avatar
Roberto Raggi committed
1036
        if (isUnused)
1037
            sel.format = m_occurrencesUnusedFormat;
Roberto Raggi's avatar
Roberto Raggi committed
1038
        else
1039
            sel.format = m_occurrencesFormat;
Roberto Raggi's avatar
Roberto Raggi committed
1040

1041
        const int anchor = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;
Roberto Raggi's avatar
Roberto Raggi committed
1042
        const int position = anchor + use.length;
Roberto Raggi's avatar
Roberto Raggi committed
1043

1044
        sel.cursor = QTextCursor(document());
Roberto Raggi's avatar
Roberto Raggi committed
1045 1046
        sel.cursor.setPosition(anchor);
        sel.cursor.setPosition(position, QTextCursor::KeepAnchor);
Roberto Raggi's avatar
Roberto Raggi committed
1047

1048 1049 1050 1051 1052 1053 1054 1055
        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
1056
        selections->append(sel);
Roberto Raggi's avatar
Roberto Raggi committed
1057 1058 1059
    }
}

Roberto Raggi's avatar
Roberto Raggi committed
1060 1061
void CPPEditor::updateMethodBoxIndexNow()
{
con's avatar
con committed
1062 1063 1064 1065 1066
    int line = 0, column = 0;
    convertPosition(position(), &line, &column);

    QModelIndex lastIndex;

1067
    const int rc = m_overviewModel->rowCount();
con's avatar
con committed
1068 1069 1070
    for (int row = 0; row < rc; ++row) {
        const QModelIndex index = m_overviewModel->index(row, 0, QModelIndex());
        Symbol *symbol = m_overviewModel->symbolFromIndex(index);
1071
        if (symbol && symbol->line() > unsigned(line))
con's avatar
con committed
1072 1073 1074 1075 1076 1077
            break;
        lastIndex = index;
    }

    if (lastIndex.isValid()) {
        bool blocked = m_methodCombo->blockSignals(true);
1078
        m_methodCombo->setCurrentIndex(m_proxyModel->mapFromSource(lastIndex).row());
1079
        updateMethodBoxToolTip();
con's avatar
con committed
1080 1081
        (void) m_methodCombo->blockSignals(blocked);
    }
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
1082 1083 1084 1085 1086 1087 1088 1089 1090
}

void CPPEditor::updateMethodBoxToolTip()
{
    m_methodCombo->setToolTip(m_methodCombo->currentText());
}

void CPPEditor::updateUses()
{
mae's avatar
mae committed
1091
    m_updateUsesTimer->start();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
1092 1093 1094 1095 1096 1097 1098
}

void CPPEditor::updateUsesNow()
{
    if (m_currentRenameSelection != -1)
        return;

Roberto Raggi's avatar
Roberto Raggi committed
1099
    semanticRehighlight();