cppeditor.cpp 61.9 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"
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
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <CoreTypes.h>
#include <Literals.h>
#include <Semantic.h>
46
#include <ASTVisitor.h>
47
#include <SymbolVisitor.h>
48
#include <TranslationUnit.h>
con's avatar
con committed
49
#include <cplusplus/ExpressionUnderCursor.h>
Roberto Raggi's avatar
Roberto Raggi committed
50
#include <cplusplus/TypeOfExpression.h>
51
#include <cplusplus/DeprecatedLookupContext.h>
con's avatar
con committed
52 53 54
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
55
#include <cplusplus/TokenUnderCursor.h>
56
#include <cplusplus/MatchingText.h>
57
#include <cplusplus/BackwardsScanner.h>
58
#include <cplusplus/FastPreprocessor.h>
59
#include <cplusplus/CppBindings.h>
Roberto Raggi's avatar
Roberto Raggi committed
60
#include <cplusplus/CheckUndefinedSymbols.h>
61

con's avatar
con committed
62 63 64 65
#include <cpptools/cppmodelmanagerinterface.h>

#include <coreplugin/icore.h>
#include <coreplugin/uniqueidmanager.h>
66
#include <coreplugin/actionmanager/actionmanager.h>
67
#include <coreplugin/actionmanager/actioncontainer.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

158 159 160
    virtual bool visit(ObjCMethod *method)
    { return processScope(method->members()); }

Roberto Raggi's avatar
Roberto Raggi committed
161 162 163 164
    bool processScope(Scope *scope)
    {
        if (_scope || ! scope)
            return false;
165

Roberto Raggi's avatar
Roberto Raggi committed
166 167
        for (unsigned i = 0; i < scope->symbolCount(); ++i) {
            accept(scope->symbolAt(i));
168

Roberto Raggi's avatar
Roberto Raggi committed
169 170 171
            if (_scope)
                return false;
        }
172

Roberto Raggi's avatar
Roberto Raggi committed
173 174
        unsigned startOffset = scope->owner()->startOffset();
        unsigned endOffset = scope->owner()->endOffset();
175

Roberto Raggi's avatar
Roberto Raggi committed
176 177
        unsigned startLine, startColumn;
        unsigned endLine, endColumn;
178

Roberto Raggi's avatar
Roberto Raggi committed
179 180
        _unit->getPosition(startOffset, &startLine, &startColumn);
        _unit->getPosition(endOffset, &endLine, &endColumn);
181

Roberto Raggi's avatar
Roberto Raggi committed
182 183 184
        if (_line > startLine || (_line == startLine && _column >= startColumn)) {
            if (_line < endLine || (_line == endLine && _column < endColumn)) {
                _scope = scope;
185 186
            }
        }
Roberto Raggi's avatar
Roberto Raggi committed
187 188 189 190 191

        return false;
    }
};

192
class FindLocalUses: protected ASTVisitor
Roberto Raggi's avatar
Roberto Raggi committed
193 194
{
    Scope *_functionScope;
195 196
    FindScope findScope;

197
public:
198 199
    FindLocalUses(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit), hasD(false), hasQ(false)
200 201
    { }

Roberto Raggi's avatar
Roberto Raggi committed
202
    // local and external uses.
Roberto Raggi's avatar
Roberto Raggi committed
203
    SemanticInfo::LocalUseMap localUses;
204 205
    bool hasD;
    bool hasQ;
Roberto Raggi's avatar
Roberto Raggi committed
206

207
    void operator()(DeclarationAST *ast)
208
    {
Roberto Raggi's avatar
Roberto Raggi committed
209 210
        localUses.clear();

211 212 213 214 215 216 217 218 219 220 221 222 223
        if (!ast)
            return;

        if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
            if (def->symbol) {
                _functionScope = def->symbol->members();
                accept(ast);
            }
        } else if (ObjCMethodDeclarationAST *decl = ast->asObjCMethodDeclaration()) {
            if (decl->method_prototype->symbol) {
                _functionScope = decl->method_prototype->symbol->members();
                accept(ast);
            }
224 225 226 227 228 229
        }
    }

protected:
    using ASTVisitor::visit;

Roberto Raggi's avatar
Roberto Raggi committed
230
    bool findMember(Scope *scope, NameAST *ast, unsigned line, unsigned column)
231
    {
Roberto Raggi's avatar
Roberto Raggi committed
232 233 234
        if (! (ast && ast->name))
            return false;

Roberto Raggi's avatar
Roberto Raggi committed
235
        const Identifier *id = ast->name->identifier();
236 237 238 239 240

        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
241
                else if (member->line() < line || (member->line() == line && member->column() <= column)) {
Roberto Raggi's avatar
Roberto Raggi committed
242
                    localUses[member].append(SemanticInfo::Use(line, column, id->size()));
243 244 245 246 247 248 249 250
                    return true;
                }
            }
        }

        return false;
    }

251 252 253 254 255 256
    void searchUsesInTemplateArguments(NameAST *name)
    {
        if (! name)
            return;

        else if (TemplateIdAST *template_id = name->asTemplateId()) {
Roberto Raggi's avatar
Roberto Raggi committed
257
            for (TemplateArgumentListAST *it = template_id->template_argument_list; it; it = it->next) {
258
                accept(it->value);
259 260 261 262
            }
        }
    }

263
    virtual bool visit(SimpleNameAST *ast)
264 265 266
    { return findMemberForToken(ast->firstToken(), ast); }

    bool findMemberForToken(unsigned tokenIdx, NameAST *ast)
267 268
    {
        unsigned line, column;
269
        getTokenStartPosition(tokenIdx, &line, &column);
270 271 272 273 274 275 276 277 278 279 280 281

        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;
282 283 284 285 286 287
            } else if (scope->isObjCMethodScope()) {
                ObjCMethod *method = scope->owner()->asObjCMethod();
                if (findMember(method->members(), ast, line, column))
                    return false;
                else if (findMember(method->arguments(), ast, line, column))
                    return false;
288 289 290 291 292 293 294 295 296 297 298 299 300
            } 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
301
    virtual bool visit(TemplateIdAST *ast)
302
    {
Roberto Raggi's avatar
Roberto Raggi committed
303
        for (TemplateArgumentListAST *arg = ast->template_argument_list; arg; arg = arg->next)
304
            accept(arg->value);
305

Roberto Raggi's avatar
Roberto Raggi committed
306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334
        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
335
        for (NestedNameSpecifierListAST *it = ast->nested_name_specifier_list; it; it = it->next)
Roberto Raggi's avatar
Roberto Raggi committed
336
            searchUsesInTemplateArguments(it->value->class_or_namespace_name);
Roberto Raggi's avatar
Roberto Raggi committed
337

338
        searchUsesInTemplateArguments(ast->unqualified_name);
339 340 341 342 343 344
        return false;
    }

    virtual bool visit(PostfixExpressionAST *ast)
    {
        accept(ast->base_expression);
Roberto Raggi's avatar
Roberto Raggi committed
345
        for (PostfixListAST *it = ast->postfix_expression_list; it; it = it->next) {
Roberto Raggi's avatar
Roberto Raggi committed
346 347
            PostfixAST *fx = it->value;
            if (fx->asMemberAccess() != 0)
348
                continue; // skip members
Roberto Raggi's avatar
Roberto Raggi committed
349
            accept(fx);
350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381
        }
        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;
    }
382

383 384 385 386 387 388 389 390 391 392
    virtual bool visit(QtMemberDeclarationAST *ast)
    {
        if (tokenKind(ast->q_token) == T_Q_D)
            hasD = true;
        else
            hasQ = true;

        return true;
    }

393 394 395 396 397 398 399 400 401 402
    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
403
        for (SpecifierListAST *it = ast->cv_qualifier_list; it; it = it->next)
Roberto Raggi's avatar
Roberto Raggi committed
404
            accept(it->value);
405 406 407 408 409

        accept(ast->exception_specification);

        return false;
    }
410 411 412 413 414 415

    virtual bool visit(ObjCMethodPrototypeAST *ast)
    {
        accept(ast->argument_list);
        return false;
    }
416 417 418 419 420 421

    virtual bool visit(ObjCMessageArgumentDeclarationAST *ast)
    {
        accept(ast->param_name);
        return false;
    }
422 423 424
};


Roberto Raggi's avatar
Roberto Raggi committed
425 426 427 428
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    unsigned _line;
    unsigned _column;
429
    DeclarationAST *_functionDefinition;
Roberto Raggi's avatar
Roberto Raggi committed
430 431

public:
Roberto Raggi's avatar
Roberto Raggi committed
432 433
    FunctionDefinitionUnderCursor(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
Roberto Raggi's avatar
Roberto Raggi committed
434
          _line(0), _column(0)
Roberto Raggi's avatar
Roberto Raggi committed
435 436
    { }

437
    DeclarationAST *operator()(AST *ast, unsigned line, unsigned column)
Roberto Raggi's avatar
Roberto Raggi committed
438 439
    {
        _functionDefinition = 0;
Roberto Raggi's avatar
Roberto Raggi committed
440 441
        _line = line;
        _column = column;
Roberto Raggi's avatar
Roberto Raggi committed
442 443 444 445 446 447 448 449 450 451 452
        accept(ast);
        return _functionDefinition;
    }

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

        else if (FunctionDefinitionAST *def = ast->asFunctionDefinition()) {
453 454 455 456 457 458
            return checkDeclaration(def);
        }

        else if (ObjCMethodDeclarationAST *method = ast->asObjCMethodDeclaration()) {
            if (method->function_body)
                return checkDeclaration(method);
Roberto Raggi's avatar
Roberto Raggi committed
459 460 461 462 463
        }

        return true;
    }

464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480
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
481 482 483 484 485 486 487 488
};

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

public:
Roberto Raggi's avatar
Roberto Raggi committed
489 490 491
    ProcessDeclarators(TranslationUnit *translationUnit)
        : ASTVisitor(translationUnit),
          _visitFunctionDeclarator(true)
Roberto Raggi's avatar
Roberto Raggi committed
492 493 494 495 496 497 498 499 500
    { }

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

        if (ast) {
            if (ast->declarator) {
                _visitFunctionDeclarator = true;
Roberto Raggi's avatar
Roberto Raggi committed
501
                accept(ast->declarator->postfix_declarator_list);
Roberto Raggi's avatar
Roberto Raggi committed
502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523
            }

            _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;
    }
};

524 525
class FindFunctionDefinitions: protected SymbolVisitor
{
Roberto Raggi's avatar
Roberto Raggi committed
526
    const Name *_declarationName;
527 528 529 530 531 532 533 534
    QList<Function *> *_functions;

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

Roberto Raggi's avatar
Roberto Raggi committed
535
    void operator()(const Name *declarationName, Scope *globals,
536 537 538 539 540 541 542 543 544 545 546 547 548 549 550
                    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
551 552
        const Name *name = function->name();
        if (const QualifiedNameId *q = name->asQualifiedNameId())
553 554 555 556 557 558 559 560 561
            name = q->unqualifiedNameId();

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

        return false;
    }
};

con's avatar
con committed
562 563 564
} // end of anonymous namespace

CPPEditorEditable::CPPEditorEditable(CPPEditor *editor)
hjk's avatar
hjk committed
565
    : BaseTextEditorEditable(editor)
con's avatar
con committed
566
{
567
    Core::UniqueIDManager *uidm = Core::UniqueIDManager::instance();
568
    m_context << uidm->uniqueIdentifier(CppEditor::Constants::C_CPPEDITOR);
569 570
    m_context << uidm->uniqueIdentifier(ProjectExplorer::Constants::LANG_CXX);
    m_context << uidm->uniqueIdentifier(TextEditor::Constants::C_TEXTEDITOR);
con's avatar
con committed
571 572
}

573 574
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
575
    , m_currentRenameSelection(-1)
576
    , m_inRename(false)
mae's avatar
mae committed
577 578
    , m_inRenameChanged(false)
    , m_firstRenameChange(false)
con's avatar
con committed
579
{
Roberto Raggi's avatar
Roberto Raggi committed
580
    m_initialized = false;
581
    qRegisterMetaType<CppEditor::Internal::SemanticInfo>("CppEditor::Internal::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
582 583 584 585

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

con's avatar
con committed
586 587
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
588
    setCodeFoldingSupported(true);
con's avatar
con committed
589
    setCodeFoldingVisible(true);
590
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
591

Roberto Raggi's avatar
Roberto Raggi committed
592
    m_modelManager = CppTools::CppModelManagerInterface::instance();
con's avatar
con committed
593 594 595 596 597 598 599 600 601

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

CPPEditor::~CPPEditor()
{
602 603
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));

Roberto Raggi's avatar
Roberto Raggi committed
604 605
    m_semanticHighlighter->abort();
    m_semanticHighlighter->wait();
con's avatar
con committed
606 607 608 609 610 611 612 613 614 615 616 617 618
}

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);
619 620 621 622 623 624

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

625
    QTreeView *methodView = new OverviewTreeView;
con's avatar
con committed
626 627 628 629 630 631
    methodView->header()->hide();
    methodView->setItemsExpandable(false);
    m_methodCombo->setView(methodView);
    m_methodCombo->setMaxVisibleItems(20);

    m_overviewModel = new OverviewModel(this);
632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647
    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
648

Roberto Raggi's avatar
Roberto Raggi committed
649 650 651 652 653
    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
654 655 656 657 658
    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
659 660
    connect(m_methodCombo, SIGNAL(activated(int)), this, SLOT(jumpToMethod(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateMethodBoxIndex()));
661
    connect(m_methodCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateMethodBoxToolTip()));
662
    connect(document(), SIGNAL(contentsChange(int,int,int)), this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
663 664 665

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

Roberto Raggi's avatar
Roberto Raggi committed
666 667 668 669 670

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

671 672
    connect(m_semanticHighlighter, SIGNAL(changed(CppEditor::Internal::SemanticInfo)),
            this, SLOT(updateSemanticInfo(CppEditor::Internal::SemanticInfo)));
Roberto Raggi's avatar
Roberto Raggi committed
673

con's avatar
con committed
674
    QToolBar *toolBar = static_cast<QToolBar*>(editable->toolBar());
con's avatar
con committed
675
    QList<QAction*> actions = toolBar->actions();
676 677
    QWidget *w = toolBar->widgetForAction(actions.first());
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_methodCombo, 1);
con's avatar
con committed
678 679
}

680 681 682 683 684 685 686
void CPPEditor::inAllRenameSelections(EditOperation operation,
                                      const QTextEdit::ExtraSelection &currentRenameSelection,
                                      QTextCursor cursor,
                                      const QString &text)
{
    cursor.beginEditBlock();

687 688 689
    const int startOffset = cursor.selectionStart() - currentRenameSelection.cursor.anchor();
    const int endOffset = cursor.selectionEnd() - currentRenameSelection.cursor.anchor();
    const int length = endOffset - startOffset;
690 691 692 693 694

    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();
695 696 697

        s.cursor.setPosition(pos + startOffset);
        s.cursor.setPosition(pos + endOffset, QTextCursor::KeepAnchor);
698 699 700 701

        switch (operation) {
        case DeletePreviousChar:
            s.cursor.deletePreviousChar();
702
            endPos -= qMax(1, length);
703 704 705
            break;
        case DeleteChar:
            s.cursor.deleteChar();
706
            endPos -= qMax(1, length);
707 708 709
            break;
        case InsertText:
            s.cursor.insertText(text);
710
            endPos += text.length() - length;
711 712 713 714 715 716 717 718 719 720 721 722 723
            break;
        }

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

    cursor.endEditBlock();

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

mae's avatar
mae committed
724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783
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;
}

784 785
void CPPEditor::abortRename()
{
mae's avatar
mae committed
786 787
    if (m_currentRenameSelection < 0)
        return;
788
    m_renameSelections[m_currentRenameSelection].format = m_occurrencesFormat;
789
    m_currentRenameSelection = -1;
mae's avatar
mae committed
790 791
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
792 793 794
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
}

con's avatar
con committed
795 796 797 798 799
void CPPEditor::onDocumentUpdated(Document::Ptr doc)
{
    if (doc->fileName() != file()->fileName())
        return;

800 801 802
    if (doc->editorRevision() != editorRevision())
        return;

Roberto Raggi's avatar
Roberto Raggi committed
803 804 805 806 807 808 809
    if (! m_initialized) {
        m_initialized = true;

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

con's avatar
con committed
810
    m_overviewModel->rebuild(doc);
811 812
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_methodCombo->view());
    treeView->sync();
Roberto Raggi's avatar
Roberto Raggi committed
813
    updateMethodBoxIndexNow();
con's avatar
con committed
814 815
}

816 817 818
CPlusPlus::Symbol *CPPEditor::findCanonicalSymbol(const QTextCursor &cursor,
                                                  Document::Ptr doc,
                                                  const Snapshot &snapshot) const
Roberto Raggi's avatar
Roberto Raggi committed
819
{
820 821 822
    if (! doc)
        return 0;

823
    QTextCursor tc = cursor;
Roberto Raggi's avatar
Roberto Raggi committed
824 825
    int line, col;
    convertPosition(tc.position(), &line, &col);
826
    ++col; // 1-based line and 1-based column
Roberto Raggi's avatar
Roberto Raggi committed
827

828 829 830 831 832
    int pos = tc.position();
    while (document()->characterAt(pos).isLetterOrNumber() ||
           document()->characterAt(pos) == QLatin1Char('_'))
        ++pos;
    tc.setPosition(pos);
Roberto Raggi's avatar
Roberto Raggi committed
833 834 835

    ExpressionUnderCursor expressionUnderCursor;
    const QString code = expressionUnderCursor(tc);
836
    // qDebug() << "code:" << code;
Roberto Raggi's avatar
Roberto Raggi committed
837 838

    TypeOfExpression typeOfExpression;
839
    typeOfExpression.init(doc, snapshot);
Roberto Raggi's avatar
Roberto Raggi committed
840

841
    const QList<LookupItem> results = typeOfExpression(code, doc->scopeAt(line, col),
842
                                                       TypeOfExpression::Preprocess);
Roberto Raggi's avatar
Roberto Raggi committed
843

844
    NamespaceBindingPtr glo = bind(doc, snapshot);
845
    Symbol *canonicalSymbol = DeprecatedLookupContext::canonicalSymbol(results, glo.data());
846

847 848 849
    return canonicalSymbol;
}

Christian Kamm's avatar
Christian Kamm committed
850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866
const Macro *CPPEditor::findCanonicalMacro(const QTextCursor &cursor,
                                                  Document::Ptr doc) const
{
    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;
}
867 868

void CPPEditor::findUsages()
869
{
870
    if (Symbol *canonicalSymbol = markSymbols()) {
Erik Verbruggen's avatar
Erik Verbruggen committed
871
        m_modelManager->findUsages(m_lastSemanticInfo.doc, canonicalSymbol);
Christian Kamm's avatar
Christian Kamm committed
872 873
    } else if (const Macro *macro = findCanonicalMacro(textCursor(), m_lastSemanticInfo.doc)) {
        m_modelManager->findMacroUsages(*macro);
874
    }
875 876 877
}

void CPPEditor::renameUsages()
878
{
879 880 881
    renameUsagesNow();
}

882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904
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();
}

905 906
void CPPEditor::hideRenameNotification()
{
907
    setShowWarningMessage(false);
908
    Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String("CppEditor.Rename"));
909 910 911 912
}

void CPPEditor::renameUsagesNow()
{
913
    if (Symbol *canonicalSymbol = markSymbols()) {
914
        if (canonicalSymbol->identifier() != 0) {
915 916 917 918 919 920
            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()));
            }
921

Erik Verbruggen's avatar
Erik Verbruggen committed
922
            m_modelManager->renameUsages(m_lastSemanticInfo.doc, canonicalSymbol);
923
        }
924 925 926 927 928 929
    }
}

Symbol *CPPEditor::markSymbols()
{
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
930

mae's avatar
mae committed
931
    abortRename();
932 933 934 935 936

    QList<QTextEdit::ExtraSelection> selections;

    SemanticInfo info = m_lastSemanticInfo;

937 938 939
    Symbol *canonicalSymbol = findCanonicalSymbol(textCursor(), info.doc, info.snapshot);
    if (canonicalSymbol) {
        TranslationUnit *unit = info.doc->translationUnit();
940

941 942 943 944
        const QList<int> references = m_modelManager->references(canonicalSymbol, info.doc, info.snapshot);
        foreach (int index, references) {
            unsigned line, column;
            unit->getTokenPosition(index, &line, &column);
945

946 947
            if (column)
                --column;  // adjust the column position.
948

949
            const int len = unit->tokenAt(index).f.length;
950

951 952 953
            QTextCursor cursor(document()->findBlockByNumber(line - 1));
            cursor.setPosition(cursor.position() + column);
            cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
954

955 956 957 958
            QTextEdit::ExtraSelection sel;
            sel.format = m_occurrencesFormat;
            sel.cursor = cursor;
            selections.append(sel);
959
        }
Roberto Raggi's avatar
Roberto Raggi committed
960
    }
961 962 963

    setExtraSelections(CodeSemanticsSelection, selections);
    return canonicalSymbol;
Roberto Raggi's avatar
Roberto Raggi committed
964 965
}

966
void CPPEditor::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
967
{
Roberto Raggi's avatar
Roberto Raggi committed
968
    updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
mae's avatar
mae committed
969
    abortRename();
970

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
971 972 973 974 975
    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()
976
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
977
            m_currentRenameSelection = i;
mae's avatar
mae committed
978 979 980 981 982
            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());
983
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
984 985 986 987
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
988 989

    if (m_renameSelections.isEmpty())
990
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
991 992
}

993 994
void CPPEditor::onContentsChanged(int position, int charsRemoved, int charsAdded)
{
995 996
    Q_UNUSED(position)

mae's avatar
mae committed
997
    if (m_currentRenameSelection == -1 || m_inRename)
998 999
        return;

mae's avatar
mae committed
1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010
    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)
1011 1012 1013 1014 1015 1016
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

con's avatar
con committed
1017 1018 1019 1020 1021
void CPPEditor::updateFileName()
{ }

void CPPEditor::jumpToMethod(int)
{
1022
    QModelIndex index = m_proxyModel->mapToSource(m_methodCombo->view()->currentIndex());
con's avatar
con committed
1023 1024 1025 1026
    Symbol *symbol = m_overviewModel->symbolFromIndex(index);
    if (! symbol)
        return;

1027
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
1028 1029
}

1030 1031 1032 1033 1034 1035 1036 1037 1038 1039
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
1040
        updateMethodBoxIndexNow();
1041 1042 1043 1044 1045 1046 1047 1048
    }
}

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

con's avatar
con committed
1049 1050
void CPPEditor::updateMethodBoxIndex()
{
mae's avatar
mae committed
1051
    m_updateMethodBoxTimer->start();
Roberto Raggi's avatar
Roberto Raggi committed
1052 1053
}

1054
void CPPEditor::highlightUses(const QList<SemanticInfo::Use> &uses,
1055
                              const SemanticInfo &semanticInfo,
1056
                              QList<QTextEdit::ExtraSelection> *selections)
Roberto Raggi's avatar
Roberto Raggi committed
1057
{
Roberto Raggi's avatar
Roberto Raggi committed
1058
    bool isUnused = false;
Roberto Raggi's avatar
Roberto Raggi committed
1059 1060

    if (uses.size() == 1)
Roberto Raggi's avatar
Roberto Raggi committed
1061
        isUnused = true;
Roberto Raggi's avatar
Roberto Raggi committed
1062

Roberto Raggi's avatar
Roberto Raggi committed
1063
    foreach (const SemanticInfo::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
1064
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
1065

Roberto Raggi's avatar
Roberto Raggi committed
1066
        if (isUnused)
1067
            sel.format = m_occurrencesUnusedFormat;
Roberto Raggi's avatar
Roberto Raggi committed
1068
        else
1069
            sel.format = m_occurrencesFormat;
Roberto Raggi's avatar
Roberto Raggi committed
1070

1071
        const int anchor = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;