cppeditor.cpp 48.3 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
26
** contact the sales department at http://www.qtsoftware.com/contact.
con's avatar
con committed
27
**
28
**************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30 31 32 33 34 35
#include "cppeditor.h"
#include "cppeditorconstants.h"
#include "cppplugin.h"
#include "cpphighlighter.h"

#include <AST.h>
36
#include <Control.h>
con's avatar
con committed
37 38 39 40 41 42 43
#include <Token.h>
#include <Scope.h>
#include <Symbols.h>
#include <Names.h>
#include <Control.h>
#include <CoreTypes.h>
#include <Literals.h>
44
#include <PrettyPrinter.h>
con's avatar
con committed
45
#include <Semantic.h>
46
#include <SymbolVisitor.h>
47
#include <TranslationUnit.h>
con's avatar
con committed
48 49 50 51 52
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/LookupContext.h>
#include <cplusplus/Overview.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/SimpleLexer.h>
53
#include <cplusplus/TokenUnderCursor.h>
con's avatar
con committed
54 55 56 57 58
#include <cplusplus/TypeOfExpression.h>
#include <cpptools/cppmodelmanagerinterface.h>

#include <coreplugin/icore.h>
#include <coreplugin/uniqueidmanager.h>
59
#include <coreplugin/actionmanager/actionmanager.h>
con's avatar
con committed
60 61
#include <coreplugin/editormanager/ieditor.h>
#include <coreplugin/editormanager/editormanager.h>
62
#include <utils/uncommentselection.h>
63
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
64 65 66 67 68 69 70 71 72 73
#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>
74
#include <QtCore/QStack>
con's avatar
con committed
75
#include <QtGui/QAction>
76
#include <QtGui/QHeaderView>
con's avatar
con committed
77 78 79 80 81 82
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
#include <QtGui/QTreeView>
83
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
84

85 86
#include <sstream>

con's avatar
con committed
87 88 89
using namespace CPlusPlus;
using namespace CppEditor::Internal;

Roberto Raggi's avatar
Roberto Raggi committed
90 91 92 93
enum {
    UPDATE_METHOD_BOX_INTERVAL = 150
};

con's avatar
con committed
94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112
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
113
class FindUses: protected ASTVisitor
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
{
    Scope *_functionScope;

    class FindScope: protected SymbolVisitor
    {
        TranslationUnit *_unit;
        Scope *_scope;
        unsigned _line;
        unsigned _column;

    public:
        Scope *operator()(unsigned line, unsigned column,
                          Symbol *root, TranslationUnit *unit)
        {
            _unit = unit;
            _scope = 0;
            _line = line;
            _column = column;
            accept(root);
            return _scope;
        }

    private:
        using SymbolVisitor::visit;

        virtual bool preVisit(Symbol *)
        { return ! _scope; }

        virtual bool visit(Block *block)
        { return processScope(block->members()); }

        virtual bool visit(Function *function)
        { return processScope(function->members()); }

        bool processScope(Scope *scope)
        {
            if (_scope || ! scope)
                return false;

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

                if (_scope)
                    return false;
            }

            unsigned startOffset = scope->owner()->startOffset();
            unsigned endOffset = scope->owner()->endOffset();

            unsigned startLine, startColumn;
            unsigned endLine, endColumn;

            _unit->getPosition(startOffset, &startLine, &startColumn);
            _unit->getPosition(endOffset, &endLine, &endColumn);

            if (_line > startLine || (_line == startLine && _column >= startColumn)) {
                if (_line < endLine || (_line == endLine && _column < endColumn)) {
                    _scope = scope;
                }
            }

            return false;
        }
    };

public:
Roberto Raggi's avatar
Roberto Raggi committed
180
    FindUses(Control *control)
181 182 183 184
        : ASTVisitor(control)
    { }

    struct Use {
Roberto Raggi's avatar
Roberto Raggi committed
185
        NameAST *name;
186 187 188 189 190 191
        unsigned line;
        unsigned column;
        unsigned length;

        Use(){}

Roberto Raggi's avatar
Roberto Raggi committed
192
        Use(NameAST *name, unsigned line, unsigned column, unsigned length)
193 194 195
                : name(name), line(line), column(column), length(length) {}
    };

Roberto Raggi's avatar
Roberto Raggi committed
196 197
    typedef QHash<Symbol *, QList<Use> > LocalUseMap;
    typedef QHashIterator<Symbol *, QList<Use> > LocalUseIterator;
198

Roberto Raggi's avatar
Roberto Raggi committed
199 200
    typedef QHash<Identifier *, QList<Use> > ExternalUseMap;
    typedef QHashIterator<Identifier *, QList<Use> > ExternalUseIterator;
201

Roberto Raggi's avatar
Roberto Raggi committed
202 203 204 205 206
    // local and external uses.
    LocalUseMap localUses;
    ExternalUseMap externalUses;

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

211 212 213 214 215 216 217 218 219
        if (ast && ast->symbol) {
            _functionScope = ast->symbol->members();
            accept(ast);
        }
    }

protected:
    using ASTVisitor::visit;

Roberto Raggi's avatar
Roberto Raggi committed
220
    bool findMember(Scope *scope, NameAST *ast, unsigned line, unsigned column)
221
    {
Roberto Raggi's avatar
Roberto Raggi committed
222 223 224 225
        if (! (ast && ast->name))
            return false;

        Identifier *id = ast->name->identifier();
226 227 228 229 230

        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
231
                else if (member->line() < line || (member->line() == line && member->column() <= column)) {
232
                    //qDebug() << "*** found member:" << member->line() << member->column() << member->name()->identifier()->chars();
Roberto Raggi's avatar
Roberto Raggi committed
233
                    localUses[member].append(Use(ast, line, column, id->size()));
234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269
                    return true;
                }
            }
        }

        return false;
    }

    virtual bool visit(SimpleNameAST *ast)
    {
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        FindScope findScope;

        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();
        }

Roberto Raggi's avatar
Roberto Raggi committed
270 271
        Identifier *id = identifier(ast->identifier_token);
        externalUses[id].append(Use(ast, line, column, id->size()));
272 273 274 275

        return false;
    }

Roberto Raggi's avatar
Roberto Raggi committed
276
    virtual bool visit(TemplateIdAST *ast)
277
    {
Roberto Raggi's avatar
Roberto Raggi committed
278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331
        unsigned line, column;
        getTokenStartPosition(ast->firstToken(), &line, &column);

        FindScope findScope;

        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();
        }

        Identifier *id = identifier(ast->identifier_token);
        externalUses[id].append(Use(ast, line, column, id->size()));

        for (TemplateArgumentListAST *arg = ast->template_arguments; arg; arg = arg->next)
            accept(arg);

        return false;
    }

    virtual bool visit(QualifiedNameAST *ast)
    {
        if (! ast->global_scope_token) {
            if (ast->nested_name_specifier) {
                accept(ast->nested_name_specifier->class_or_namespace_name);

                for (NestedNameSpecifierAST *it = ast->nested_name_specifier->next; it; it = it->next) {
                    if (NameAST *class_or_namespace_name = it->class_or_namespace_name) {
                        if (TemplateIdAST *template_id = class_or_namespace_name->asTemplateId()) {
                            for (TemplateArgumentListAST *arg = template_id->template_arguments; arg; arg = arg->next)
                                accept(arg);
                        }
                    }
                }
            }

            accept(ast->unqualified_name);
        }

332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376
        return false;
    }

    virtual bool visit(PostfixExpressionAST *ast)
    {
        accept(ast->base_expression);
        for (PostfixAST *it = ast->postfix_expressions; it; it = it->next) {
            if (it->asMemberAccess() != 0)
                continue; // skip members
            accept(it);
        }
        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;
    }
};


Roberto Raggi's avatar
Roberto Raggi committed
377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463
class FunctionDefinitionUnderCursor: protected ASTVisitor
{
    QTextCursor _textCursor;
    unsigned _line;
    unsigned _column;
    FunctionDefinitionAST *_functionDefinition;

public:
    FunctionDefinitionUnderCursor(Control *control)
        : ASTVisitor(control)
    { }

    FunctionDefinitionAST *operator()(AST *ast, const QTextCursor &tc)
    {
        _functionDefinition = 0;
        _textCursor = tc;
        _line = tc.blockNumber() + 1;
        _column = tc.columnNumber() + 1;
        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:
    ProcessDeclarators(Control *control)
            : ASTVisitor(control), _visitFunctionDeclarator(true)
    { }

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

        if (ast) {
            if (ast->declarator) {
                _visitFunctionDeclarator = true;
                accept(ast->declarator->postfix_declarators);
            }

            _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;
    }
};

464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
class FindFunctionDefinitions: protected SymbolVisitor
{
    Name *_declarationName;
    QList<Function *> *_functions;

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

    void operator()(Name *declarationName, Scope *globals,
                    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)
    {
        Name *name = function->name();
        if (QualifiedNameId *q = name->asQualifiedNameId())
            name = q->unqualifiedNameId();

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

        return false;
    }
};

502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606
class SimplifyDeclarations: protected ASTVisitor
{
    CPPEditor *_editor;
    Document::Ptr _doc;
    QByteArray _source;
    QTextCursor _textCursor;
    unsigned _line;
    unsigned _column;

public:
    SimplifyDeclarations(CPPEditor *ed, Document::Ptr doc)
        : ASTVisitor(doc->control()), _editor(ed),
          _doc(doc), _source(doc->source())
    { }

    void operator()(QTextCursor tc)
    {
        _textCursor = tc;

        _line = _textCursor.blockNumber() + 1;
        _column = _textCursor.columnNumber() + 1;

        accept(_doc->translationUnit()->ast());
    }

protected:
    QByteArray text(unsigned firstToken, unsigned lastToken) const
    {
        const unsigned begin = tokenAt(firstToken).begin();
        const unsigned end = tokenAt(lastToken - 1).end();
        return _source.mid(begin, end - begin);
    }

    virtual bool visit(SimpleDeclarationAST *ast)
    {
        if (! ast->decl_specifier_seq) {
            // e.g a ctor/dtor or a cast-function-id.
            return true;
        } if (! ast->declarators) {
            // e.g.
            // struct foo { int a; };
            return true;
        } else if (! ast->declarators->next) {
            // e.g.
            // int a;
            return true;
        }

        unsigned startLine, startColumn;
        unsigned endLine, endColumn;

        getTokenStartPosition(ast->firstToken(), &startLine, &startColumn);
        getTokenEndPosition(ast->lastToken() - 1, &endLine, &endColumn);

        if (_line < startLine || (_line == startLine && _column < startColumn))
            return true;
        else if (_line > endLine || (_line == endLine && _column >= endColumn))
            return true;

        unsigned beginOfDeclSpecifiers = ast->decl_specifier_seq->firstToken();
        unsigned endOfDeclSpecifiers = 0;

        for (SpecifierAST *spec = ast->decl_specifier_seq; spec; spec = spec->next) {
            if (spec->asClassSpecifier() != 0) {
                // e.g.
                // struct foo { int a; } x, y, z;
                return true;
            } else if (! spec->next)
                endOfDeclSpecifiers = spec->lastToken();
        }

        const QByteArray declSpecifiers =
                text(beginOfDeclSpecifiers, endOfDeclSpecifiers);

        QByteArray code;
        for (DeclaratorListAST *it = ast->declarators; it; it = it->next) {
            DeclaratorAST *decl = it->declarator;

            const QByteArray declaratorText = text(decl->firstToken(), decl->lastToken());
            code += declSpecifiers;
            code += ' ';
            code += declaratorText;
            code += ';';
            code += '\n';
        }

        const QString refactoredCode = QString::fromUtf8(code);

        QTextCursor tc = _textCursor;
        tc.beginEditBlock();
        tc.setPosition(tc.document()->findBlockByNumber(startLine - 1).position() + startColumn - 1);
        int startPos = tc.position();
        tc.setPosition(tc.document()->findBlockByNumber(endLine - 1).position() + endColumn - 1,
                       QTextCursor::KeepAnchor);
        tc.removeSelectedText();
        tc.insertText(refactoredCode);
        tc.setPosition(startPos);
        tc.setPosition(tc.position() + refactoredCode.length(), QTextCursor::KeepAnchor);
        _editor->indentInsertedText(tc);
        tc.endEditBlock();

        return true;
    }
};

con's avatar
con committed
607 608
} // end of anonymous namespace

609
static QualifiedNameId *qualifiedNameIdForSymbol(Symbol *s, const LookupContext &context)
con's avatar
con committed
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643
{
    Name *symbolName = s->name();
    if (! symbolName)
        return 0; // nothing to do.

    QVector<Name *> names;

    for (Scope *scope = s->scope(); scope; scope = scope->enclosingScope()) {
        if (scope->isClassScope() || scope->isNamespaceScope()) {
            if (scope->owner() && scope->owner()->name()) {
                Name *ownerName = scope->owner()->name();
                if (QualifiedNameId *q = ownerName->asQualifiedNameId()) {
                    for (unsigned i = 0; i < q->nameCount(); ++i) {
                        names.prepend(q->nameAt(i));
                    }
                } else {
                    names.prepend(ownerName);
                }
            }
        }
    }

    if (QualifiedNameId *q = symbolName->asQualifiedNameId()) {
        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
644
    : BaseTextEditorEditable(editor)
con's avatar
con committed
645
{
646 647 648 649
    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
650 651
}

652 653
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
654
    , m_mouseNavigationEnabled(true)
655
    , m_showingLink(false)
con's avatar
con committed
656 657 658
{
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
659
    setCodeFoldingSupported(true);
con's avatar
con committed
660
    setCodeFoldingVisible(true);
661
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
662 663 664 665 666 667 668 669 670 671 672 673 674 675 676

#ifdef WITH_TOKEN_MOVE_POSITION
    new QShortcut(QKeySequence::MoveToPreviousWord, this, SLOT(moveToPreviousToken()),
                  /*ambiguousMember=*/ 0, Qt::WidgetShortcut);

    new QShortcut(QKeySequence::MoveToNextWord, this, SLOT(moveToNextToken()),
                  /*ambiguousMember=*/ 0, Qt::WidgetShortcut);

    new QShortcut(QKeySequence::DeleteStartOfWord, this, SLOT(deleteStartOfToken()),
                  /*ambiguousMember=*/ 0, Qt::WidgetShortcut);

    new QShortcut(QKeySequence::DeleteEndOfWord, this, SLOT(deleteEndOfToken()),
                  /*ambiguousMember=*/ 0, Qt::WidgetShortcut);
#endif

677 678
    m_modelManager = ExtensionSystem::PluginManager::instance()
        ->getObject<CppTools::CppModelManagerInterface>();
con's avatar
con committed
679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700

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

CPPEditor::~CPPEditor()
{
}

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);
701 702 703 704 705 706

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

707
    QTreeView *methodView = new OverviewTreeView;
con's avatar
con committed
708 709 710 711 712 713
    methodView->header()->hide();
    methodView->setItemsExpandable(false);
    m_methodCombo->setView(methodView);
    m_methodCombo->setMaxVisibleItems(20);

    m_overviewModel = new OverviewModel(this);
714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729
    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
730

Roberto Raggi's avatar
Roberto Raggi committed
731 732 733 734 735
    m_updateMethodBoxTimer = new QTimer(this);
    m_updateMethodBoxTimer->setSingleShot(true);
    m_updateMethodBoxTimer->setInterval(UPDATE_METHOD_BOX_INTERVAL);
    connect(m_updateMethodBoxTimer, SIGNAL(timeout()), this, SLOT(updateMethodBoxIndexNow()));

con's avatar
con committed
736 737
    connect(m_methodCombo, SIGNAL(activated(int)), this, SLOT(jumpToMethod(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateMethodBoxIndex()));
738
    connect(m_methodCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateMethodBoxToolTip()));
con's avatar
con committed
739 740 741 742 743

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

    QToolBar *toolBar = editable->toolBar();
    QList<QAction*> actions = toolBar->actions();
744 745
    QWidget *w = toolBar->widgetForAction(actions.first());
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_methodCombo, 1);
con's avatar
con committed
746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847
}

int CPPEditor::previousBlockState(QTextBlock block) const
{
    block = block.previous();
    if (block.isValid()) {
        int state = block.userState();

        if (state != -1)
            return state;
    }
    return 0;
}

QTextCursor CPPEditor::moveToPreviousToken(QTextCursor::MoveMode mode) const
{
    SimpleLexer tokenize;
    QTextCursor c(textCursor());
    QTextBlock block = c.block();
    int column = c.columnNumber();

    for (; block.isValid(); block = block.previous()) {
        const QString textBlock = block.text();
        QList<SimpleToken> tokens = tokenize(textBlock, previousBlockState(block));

        if (! tokens.isEmpty()) {
            tokens.prepend(SimpleToken());

            for (int index = tokens.size() - 1; index != -1; --index) {
                const SimpleToken &tk = tokens.at(index);
                if (tk.position() < column) {
                    c.setPosition(block.position() + tk.position(), mode);
                    return c;
                }
            }
        }

        column = INT_MAX;
    }

    c.movePosition(QTextCursor::Start, mode);
    return c;
}

QTextCursor CPPEditor::moveToNextToken(QTextCursor::MoveMode mode) const
{
    SimpleLexer tokenize;
    QTextCursor c(textCursor());
    QTextBlock block = c.block();
    int column = c.columnNumber();

    for (; block.isValid(); block = block.next()) {
        const QString textBlock = block.text();
        QList<SimpleToken> tokens = tokenize(textBlock, previousBlockState(block));

        if (! tokens.isEmpty()) {
            for (int index = 0; index < tokens.size(); ++index) {
                const SimpleToken &tk = tokens.at(index);
                if (tk.position() > column) {
                    c.setPosition(block.position() + tk.position(), mode);
                    return c;
                }
            }
        }

        column = -1;
    }

    c.movePosition(QTextCursor::End, mode);
    return c;
}

void CPPEditor::moveToPreviousToken()
{
    setTextCursor(moveToPreviousToken(QTextCursor::MoveAnchor));
}

void CPPEditor::moveToNextToken()
{
    setTextCursor(moveToNextToken(QTextCursor::MoveAnchor));
}

void CPPEditor::deleteStartOfToken()
{
    QTextCursor c = moveToPreviousToken(QTextCursor::KeepAnchor);
    c.removeSelectedText();
    setTextCursor(c);
}

void CPPEditor::deleteEndOfToken()
{
    QTextCursor c = moveToNextToken(QTextCursor::KeepAnchor);
    c.removeSelectedText();
    setTextCursor(c);
}

void CPPEditor::onDocumentUpdated(Document::Ptr doc)
{
    if (doc->fileName() != file()->fileName())
        return;

    m_overviewModel->rebuild(doc);
848 849
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_methodCombo->view());
    treeView->sync();
Roberto Raggi's avatar
Roberto Raggi committed
850
    updateMethodBoxIndexNow();
con's avatar
con committed
851 852
}

853 854 855 856 857 858 859
void CPPEditor::reformatDocument()
{
    using namespace CPlusPlus;

    QByteArray source = toPlainText().toUtf8();

    Control control;
860
    StringLiteral *fileId = control.findOrInsertStringLiteral("<file>");
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880
    TranslationUnit unit(&control, fileId);
    unit.setQtMocRunEnabled(true);
    unit.setSource(source.constData(), source.length());
    unit.parse();
    if (! unit.ast())
        return;

    std::ostringstream s;

    TranslationUnitAST *ast = unit.ast()->asTranslationUnit();
    PrettyPrinter pp(&control, s);
    pp(ast, source);

    const std::string str = s.str();
    QTextCursor c = textCursor();
    c.setPosition(0);
    c.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
    c.insertText(QString::fromUtf8(str.c_str(), str.length()));
}

881 882 883 884 885 886 887
void CPPEditor::simplifyDeclarations()
{
    Snapshot snapshot = m_modelManager->snapshot();
    const QByteArray plainText = toPlainText().toUtf8();
    const QString fileName = file()->fileName();
    const QByteArray preprocessedCode = snapshot.preprocessedCode(plainText, fileName);
    Document::Ptr doc = snapshot.documentFromSource(preprocessedCode, fileName);
888
    doc->check();
889 890 891 892 893

    SimplifyDeclarations simplify(this, doc);
    simplify(textCursor());
}

con's avatar
con committed
894 895 896 897 898
void CPPEditor::updateFileName()
{ }

void CPPEditor::jumpToMethod(int)
{
899
    QModelIndex index = m_proxyModel->mapToSource(m_methodCombo->view()->currentIndex());
con's avatar
con committed
900 901 902 903
    Symbol *symbol = m_overviewModel->symbolFromIndex(index);
    if (! symbol)
        return;

904
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
905 906
}

907 908 909 910 911 912 913 914 915 916
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
917
        updateMethodBoxIndexNow();
918 919 920 921 922 923 924 925
    }
}

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

con's avatar
con committed
926 927
void CPPEditor::updateMethodBoxIndex()
{
Roberto Raggi's avatar
Roberto Raggi committed
928 929 930
    m_updateMethodBoxTimer->start(UPDATE_METHOD_BOX_INTERVAL);
}

Roberto Raggi's avatar
Roberto Raggi committed
931 932 933 934 935 936
static void highlightUses(QTextDocument *doc,
                          const QTextCharFormat &format,
                          TranslationUnit *translationUnit,
                          const QList<FindUses::Use> &uses,
                          QList<QTextEdit::ExtraSelection> *selections)
{
Roberto Raggi's avatar
Roberto Raggi committed
937 938 939
    if (uses.size() <= 1)
        return;

Roberto Raggi's avatar
Roberto Raggi committed
940
    foreach (const FindUses::Use &use, uses) {
Roberto Raggi's avatar
Roberto Raggi committed
941
        NameAST *name = use.name;
Roberto Raggi's avatar
Roberto Raggi committed
942 943 944 945 946 947 948 949 950 951 952 953
        bool generated = false;

        for (unsigned tk = name->firstToken(), end = name->lastToken(); tk != end; ++tk) {
            if (translationUnit->tokenAt(tk).generated) {
                generated = true;
                break;
            }
        }

        if (! generated) {
            unsigned startLine, startColumn;
            unsigned endLine, endColumn;
Roberto Raggi's avatar
Roberto Raggi committed
954 955 956 957 958

            unsigned identifier_token = name->firstToken();

            translationUnit->getTokenStartPosition(identifier_token, &startLine, &startColumn);
            translationUnit->getTokenEndPosition(identifier_token, &endLine, &endColumn);
Roberto Raggi's avatar
Roberto Raggi committed
959 960 961 962 963 964 965 966 967 968 969 970 971

            QTextEdit::ExtraSelection sel;
            sel.cursor = QTextCursor(doc);
            sel.cursor.setPosition(doc->findBlockByNumber(startLine - 1).position() + startColumn - 1);
            sel.cursor.setPosition(doc->findBlockByLineNumber(endLine - 1).position() + endColumn - 1,
                                   QTextCursor::KeepAnchor);
            sel.format = format;

            selections->append(sel);
        }
    }
}

Roberto Raggi's avatar
Roberto Raggi committed
972 973 974 975
void CPPEditor::updateMethodBoxIndexNow()
{
    m_updateMethodBoxTimer->stop();

con's avatar
con committed
976 977 978 979 980
    int line = 0, column = 0;
    convertPosition(position(), &line, &column);

    QModelIndex lastIndex;

981
    const int rc = m_overviewModel->rowCount();
con's avatar
con committed
982 983 984
    for (int row = 0; row < rc; ++row) {
        const QModelIndex index = m_overviewModel->index(row, 0, QModelIndex());
        Symbol *symbol = m_overviewModel->symbolFromIndex(index);
985
        if (symbol && symbol->line() > unsigned(line))
con's avatar
con committed
986 987 988 989
            break;
        lastIndex = index;
    }

990 991
    QList<QTextEdit::ExtraSelection> selections;

con's avatar
con committed
992 993
    if (lastIndex.isValid()) {
        bool blocked = m_methodCombo->blockSignals(true);
994
        m_methodCombo->setCurrentIndex(m_proxyModel->mapFromSource(lastIndex).row());
995
        updateMethodBoxToolTip();
con's avatar
con committed
996 997
        (void) m_methodCombo->blockSignals(blocked);
    }
998

Roberto Raggi's avatar
Roberto Raggi committed
999 1000 1001
    const Snapshot snapshot = m_modelManager->snapshot();
    const QByteArray preprocessedCode = snapshot.preprocessedCode(toPlainText(), file()->fileName());
    Document::Ptr doc = snapshot.documentFromSource(preprocessedCode, file()->fileName());
1002
    doc->check();
Roberto Raggi's avatar
Roberto Raggi committed
1003 1004 1005 1006 1007 1008 1009 1010
    Control *control = doc->control();
    TranslationUnit *translationUnit = doc->translationUnit();
    AST *ast = translationUnit->ast();

    FunctionDefinitionUnderCursor functionDefinitionUnderCursor(control);
    FunctionDefinitionAST *currentFunctionDefinition = functionDefinitionUnderCursor(ast, textCursor());

    QTextCharFormat format;
1011
    format.setBackground(Qt::lightGray);
Roberto Raggi's avatar
Roberto Raggi committed
1012 1013 1014 1015 1016

    FindUses useTable(control);
    useTable(currentFunctionDefinition);

    FindUses::LocalUseIterator it(useTable.localUses);
1017 1018
    while (it.hasNext()) {
        it.next();
Roberto Raggi's avatar
Roberto Raggi committed
1019
        const QList<FindUses::Use> &uses = it.value();
1020 1021

        bool good = false;
Roberto Raggi's avatar
Roberto Raggi committed
1022
        foreach (const FindUses::Use &use, uses) {
1023 1024 1025 1026
            unsigned l = line;
            unsigned c = column + 1; // convertCursorPosition() returns a 0-based column number.
            if (l == use.line && c >= use.column && c <= (use.column + use.length)) {
                good = true;
Roberto Raggi's avatar
Roberto Raggi committed
1027 1028 1029
                break;
            }
        }
1030 1031

        if (! good)
Roberto Raggi's avatar
Roberto Raggi committed
1032
            continue;
1033

Roberto Raggi's avatar
Roberto Raggi committed
1034 1035
        highlightUses(document(), format, translationUnit, uses, &selections);
        break; // done
Roberto Raggi's avatar
Roberto Raggi committed
1036
    }
1037

Roberto Raggi's avatar
Roberto Raggi committed
1038 1039 1040 1041
    FindUses::ExternalUseIterator it2(useTable.externalUses);
    while (it2.hasNext()) {
        it2.next();
        const QList<FindUses::Use> &uses = it2.value();
1042

Roberto Raggi's avatar
Roberto Raggi committed
1043 1044 1045 1046 1047 1048 1049
        bool good = false;
        foreach (const FindUses::Use &use, uses) {
            unsigned l = line;
            unsigned c = column + 1; // convertCursorPosition() returns a 0-based column number.
            if (l == use.line && c >= use.column && c <= (use.column + use.length)) {
                good = true;
                break;
1050 1051
            }
        }
Roberto Raggi's avatar
Roberto Raggi committed
1052 1053 1054 1055 1056 1057

        if (! good)
            continue;

        highlightUses(document(), format, translationUnit, uses, &selections);
        break; // done
1058 1059 1060
    }

    setExtraSelections(CodeSemanticsSelection, selections);
con's avatar
con committed
1061 1062
}

1063 1064 1065 1066 1067
void CPPEditor::updateMethodBoxToolTip()
{
    m_methodCombo->setToolTip(m_methodCombo->currentText());
}

con's avatar
con committed
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
static bool isCompatible(Name *name, Name *otherName)
{
    if (NameId *nameId = name->asNameId()) {
        if (TemplateNameId *otherTemplId = otherName->asTemplateNameId())
            return nameId->identifier()->isEqualTo(otherTemplId->identifier());
    } else if (TemplateNameId *templId = name->asTemplateNameId()) {
        if (NameId *otherNameId = otherName->asNameId())
            return templId->identifier()->isEqualTo(otherNameId->identifier());
    }

    return name->isEqualTo(otherName);
}

static bool isCompatible(Function *definition, Symbol *declaration, QualifiedNameId *declarationName)
{
1083
    Function *declTy = declaration->type()->asFunctionType();
con's avatar
con committed
1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127
    if (! declTy)
        return false;

    Name *definitionName = definition->name();
    if (QualifiedNameId *q = definitionName->asQualifiedNameId()) {
        if (! isCompatible(q->unqualifiedNameId(), declaration->name()))
            return false;
        else if (q->nameCount() > declarationName->nameCount())
            return false;
        else if (declTy->argumentCount() != definition->argumentCount())
            return false;
        else if (declTy->isConst() != definition->isConst())
            return false;
        else if (declTy->isVolatile() != definition->isVolatile())
            return false;

        for (unsigned i = 0; i < definition->argumentCount(); ++i) {
            Symbol *arg = definition->argumentAt(i);
            Symbol *otherArg = declTy->argumentAt(i);
            if (! arg->type().isEqualTo(otherArg->type()))
                return false;
        }

        for (unsigned i = 0; i != q->nameCount(); ++i) {
            Name *n = q->nameAt(q->nameCount() - i - 1);
            Name *m = declarationName->nameAt(declarationName->nameCount() - i - 1);
            if (! isCompatible(n, m))
                return false;
        }
        return true;
    } else {
        // ### TODO: implement isCompatible for unqualified name ids.
    }
    return false;
}

void CPPEditor::switchDeclarationDefinition()
{
    int line = 0, column = 0;
    convertPosition(position(), &line, &column);

    if (!m_modelManager)
        return;

1128 1129 1130
    const Snapshot snapshot = m_modelManager->snapshot();

    Document::Ptr doc = snapshot.value(file()->fileName());
con's avatar
con committed
1131 1132 1133 1134 1135 1136 1137
    if (!doc)
        return;
    Symbol *lastSymbol = doc->findSymbolAt(line, column);
    if (!lastSymbol || !lastSymbol->scope())
        return;

    Function *f = lastSymbol->asFunction();
1138
    if (!f) {
con's avatar
con committed
1139
        Scope *fs = lastSymbol->scope();
1140
        if (!fs->isFunctionScope())
con's avatar
con committed
1141 1142 1143 1144 1145 1146 1147
            fs = fs->enclosingFunctionScope();
        if (fs)
            f = fs->owner()->asFunction();
    }

    if (f) {
        TypeOfExpression typeOfExpression;
1148
        typeOfExpression.setSnapshot(m_modelManager->snapshot());
con's avatar
con committed
1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164
        QList<TypeOfExpression::Result> resolvedSymbols = typeOfExpression(QString(), doc, lastSymbol);
        const LookupContext &context = typeOfExpression.lookupContext();

        QualifiedNameId *q = qualifiedNameIdForSymbol(f, context);
        QList<Symbol *> symbols = context.resolve(q);

        Symbol *declaration = 0;
        foreach (declaration, symbols) {
            if (isCompatible(f, declaration, q))
                break;
        }

        if (! declaration && ! symbols.isEmpty())
            declaration = symbols.first();

        if (declaration)
1165
            openCppEditorAt(linkToSymbol(declaration));
1166
    } else if (lastSymbol->type()->isFunctionType()) {
con's avatar
con committed
1167
        if (Symbol *def = findDefinition(lastSymbol))
1168
            openCppEditorAt(linkToSymbol(def));
con's avatar
con committed
1169 1170 1171
    }
}

1172 1173
CPPEditor::Link CPPEditor::findLinkAt(const QTextCursor &cursor,
                                      bool lookupDefinition)
con's avatar
con committed
1174
{
1175
    Link link;
1176

con's avatar
con committed
1177
    if (!m_modelManager)
1178
        return link;
con's avatar
con committed
1179

1180
    const Snapshot snapshot = m_modelManager->snapshot();
con's avatar
con committed
1181
    int line = 0, column = 0;
1182
    convertPosition(cursor.position(), &line, &column);
1183
    Document::Ptr doc = snapshot.value(file()->fileName());
con's avatar
con committed
1184
    if (!doc)
1185
        return link;
1186

1187
    QTextCursor tc = cursor;
1188

1189 1190 1191 1192 1193 1194 1195
    // Make sure we're not at the start of a word
    {
        const QChar c = characterAt(tc.position());
        if (c.isLetter() || c == QLatin1Char('_'))
            tc.movePosition(QTextCursor::Right);
    }

1196
    static TokenUnderCursor tokenUnderCursor;
1197 1198 1199 1200

    QTextBlock block;
    const SimpleToken tk = tokenUnderCursor(tc, &block);

1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213
    // Handle include directives
    if (tk.is(T_STRING_LITERAL) || tk.is(T_ANGLE_STRING_LITERAL)) {
        const unsigned lineno = cursor.blockNumber() + 1;
        foreach (const Document::Include &incl, doc->includes()) {
            if (incl.line() == lineno && incl.resolved()) {
                link.fileName = incl.fileName();
                link.pos = cursor.block().position() + tk.position() + 1;
                link.length = tk.length() - 2;
                return link;
            }
        }
    }

1214 1215 1216
    if (tk.isNot(T_IDENTIFIER))
        return link;

1217 1218 1219 1220 1221
    // Find the last symbol up to the cursor position
    Symbol *lastSymbol = doc->findSymbolAt(line, column);
    if (!lastSymbol)
        return link;

1222 1223
    const int nameStart = tk.position();
    const int nameLength = tk.length();
1224
    const int endOfName = block.position() + nameStart + nameLength;
1225 1226

    const QString name = block.text().mid(nameStart, nameLength);
1227
    tc.setPosition(endOfName);
1228 1229

    // Evaluate the type of the expression under the cursor
con's avatar
con committed
1230 1231 1232
    ExpressionUnderCursor expressionUnderCursor;
    const QString expression = expressionUnderCursor(tc);
    TypeOfExpression typeOfExpression;
1233
    typeOfExpression.setSnapshot(snapshot);
con's avatar
con committed
1234 1235 1236 1237
    QList<TypeOfExpression::Result> resolvedSymbols =
            typeOfExpression(expression, doc, lastSymbol);

    if (!resolvedSymbols.isEmpty()) {
1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251
        TypeOfExpression::Result result = resolvedSymbols.first();

        if (result.first->isForwardClassDeclarationType()) {
            while (! resolvedSymbols.isEmpty()) {
                TypeOfExpression::Result r = resolvedSymbols.takeFirst();

                if (! r.first->isForwardClassDeclarationType()) {
                    result = r;
                    break;
                }
            }
        }

        if (Symbol *symbol = result.second) {
con's avatar
con committed
1252
            Symbol *def = 0;
1253
            if (lookupDefinition && !lastSymbol->isFunction())
con's avatar
con committed
1254 1255
                def = findDefinition(symbol);

1256
            link = linkToSymbol(def ? def : symbol);
1257
            link.pos = block.position() + nameStart;
1258 1259
            link.length = nameLength;
            return link;
con's avatar
con committed
1260 1261 1262 1263 1264 1265 1266

        // This would jump to the type of a name
#if 0
        } else if (NamedType *namedType = firstType->asNamedType()) {
            QList<Symbol *> candidates = context.resolve(namedType->name());
            if (!candidates.isEmpty()) {
                Symbol *s = candidates.takeFirst();
1267
                openCppEditorAt(s->fileName(), s->line(), s->column());
con's avatar
con committed
1268 1269 1270 1271
            }
#endif
        }
    } else {
1272
        // Handle macro uses
Roberto Raggi's avatar
Roberto Raggi committed
1273 1274 1275
        foreach (const Document::MacroUse use, doc->macroUses()) {
            if (use.contains(endOfName - 1)) {
                const Macro &macro = use.macro();
1276
                link.fileName = macro.fileName();
1277 1278 1279 1280
                link.line = macro.line();
                link.pos = use.begin();
                link.length = use.end() - use.begin();
                return link;
Roberto Raggi's avatar
Roberto Raggi committed
1281 1282
            }
        }
con's avatar
con committed
1283
    }
1284

1285
    return link;
1286 1287 1288 1289
}

void CPPEditor::jumpToDefinition()
{
1290
    openCppEditorAt(findLinkAt(textCursor()));
con's avatar
con committed
1291 1292
}

1293
Symbol *CPPEditor::findDefinition(Symbol *symbol)
con's avatar
con committed
1294
{
1295 1296
    if (symbol->isFunction())
        return 0; // symbol is a function definition.
con's avatar
con committed
1297

1298
    Function *funTy = symbol->type()->asFunctionType();
1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324
    if (! funTy)
        return 0; // symbol does not have function type.

    Name *name = symbol->name();
    if (! name)
        return 0; // skip anonymous functions!

    if (QualifiedNameId *q = name->asQualifiedNameId())
        name = q->unqualifiedNameId();

    // map from file names to function definitions.
    QMap<QString, QList<Function *> > functionDefinitions;

    // find function definitions.
    FindFunctionDefinitions findFunctionDefinitions;

    // save the current snapshot
    const Snapshot snapshot = m_modelManager->snapshot();

    foreach (Document::Ptr doc, snapshot) {
        if (Scope *globals = doc->globalSymbols()) {
            QList<Function *> *localFunctionDefinitions =
                    &functionDefinitions[doc->fileName()];

            findFunctionDefinitions(name, globals,
                                    localFunctionDefinitions);
con's avatar
con committed
1325 1326 1327
        }
    }

1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
    // a dummy document.
    Document::Ptr expressionDocument = Document::create("<empty>");

    QMapIterator<QString, QList<Function *> > it(functionDefinitions);
    while (it.hasNext()) {
        it.next();

        // get the instance of the document.
        Document::Ptr thisDocument = snapshot.value(it.key());

        foreach (Function *f, it.value()) {
            // create a lookup context
            const LookupContext context(f, expressionDocument,
                                        thisDocument, snapshot);

            // search the matching definition for the function declaration `symbol'.
            foreach (Symbol *s, context.resolve(f->name())) {
                if (s == symbol)
                    return f;
con's avatar
con committed
1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357
            }
        }
    }

    return 0;
}

bool CPPEditor::isElectricCharacter(const QChar &ch) const
{
    if (ch == QLatin1Char('{') ||
        ch == QLatin1Char('}') ||
1358
        ch == QLatin1Char('#')) {
con's avatar
con committed
1359 1360 1361 1362 1363
        return true;
    }
    return false;
}

1364 1365 1366 1367 1368
void CPPEditor::indentInsertedText(const QTextCursor &tc)
{
    indent(tc.document(), tc, QChar::Null);
}

con's avatar
con committed
1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403
// Indent a code line based on previous
template <class Iterator>
static void indentCPPBlock(const CPPEditor::TabSettings &ts,
                           const QTextBlock &block,
                           const Iterator &programBegin,
                           const Iterator &programEnd,
                           QChar typedChar)
{
    typedef typename SharedTools::Indenter<Iterator> Indenter;
    Indenter &indenter = Indenter::instance();
    indenter.setIndentSize(ts.m_indentSize);
    indenter.setTabSize(ts.m_tabSize);

    const TextEditor::TextBlockIterator current(block);
    const int indent = indenter.indentForBottomLine(current, programBegin, programEnd, typedChar);
    ts.indentLine(block, indent);
}

void CPPEditor::indentBlock(QTextDocument *doc, QTextBlock block, QChar typedChar)
{
    const TextEditor::TextBlockIterator begin(doc->begin());
    const TextEditor::TextBlockIterator end(block.next());

    indentCPPBlock(tabSettings(), block, begin, end, typedChar);
}

void CPPEditor::contextMenuEvent(QContextMenuEvent *e)
{
    QMenu *menu = createStandardContextMenu();

    // Remove insert unicode control character
    QAction *lastAction = menu->actions().last();
    if (lastAction->menu() && QLatin1String(lastAction->menu()->metaObject()->className()) == QLatin1String("QUnicodeControlCharacterMenu"))
        menu->removeAction(lastAction);

1404
    Core::ActionContainer *mcontext =
1405
        Core::ICore::instance()->actionManager()->actionContainer(CppEditor::Constants::M_CONTEXT);
con's avatar
con committed
1406 1407 1408 1409 1410
    QMenu *contextMenu = mcontext->menu();

    foreach (QAction *action, contextMenu->actions())
        menu->addAction(action);

1411 1412 1413 1414
    QAction *simplifyDeclarations = new QAction(tr("Simplify Declarations"), menu);
    connect(simplifyDeclarations, SIGNAL(triggered()), this, SLOT(simplifyDeclarations()));
    menu->addAction(simplifyDeclarations);

con's avatar
con committed
1415 1416 1417 1418
    menu->exec(e->globalPos());
    delete menu;
}

1419 1420
void CPPEditor::mouseMoveEvent(QMouseEvent *e)
{
1421
    bool linkFound = false;
1422

1423
    if (m_mouseNavigationEnabled && e->modifiers() & Qt::ControlModifier) {
1424 1425 1426
        // Link emulation behaviour for 'go to definition'
        const QTextCursor cursor = cursorForPosition(e->pos());

1427 1428 1429 1430 1431 1432 1433 1434
        // Check that the mouse was actually on the text somewhere
        bool onText = cursorRect(cursor).right() >= e->x();
        if (!onText) {
            QTextCursor nextPos = cursor;
            nextPos.movePosition(QTextCursor::Right);
            onText = cursorRect(nextPos).right() >= e->x();
        }

1435
        const Link link = findLinkAt(cursor, false);
1436 1437

        if (onText && !link.fileName.isEmpty()) {
1438 1439
            showLink(link);
            linkFound = true;
1440 1441 1442
        }
    }

1443 1444
    if (!linkFound)
        clearLink();
1445 1446 1447 1448 1449 1450 1451 1452 1453 1454

    TextEditor::BaseTextEditor::mouseMoveEvent(e);
}

void CPPEditor::mouseReleaseEvent(QMouseEvent *e)
{
    if (e->modifiers() & Qt::ControlModifier && !(e->modifiers() & Qt::ShiftModifier)
        && e->button() == Qt::LeftButton) {

        const QTextCursor cursor = cursorForPosition(e->pos());
1455
        if (openCppEditorAt(findLinkAt(cursor))) {
1456
            clearLink();
1457 1458 1459 1460 1461 1462 1463 1464
            e->accept();
            return;
        }
    }

    TextEditor::BaseTextEditor::mouseReleaseEvent(e);
}

1465 1466 1467 1468 1469 1470
void CPPEditor::leaveEvent(QEvent *e)
{
    clearLink();
    TextEditor::BaseTextEditor::leaveEvent(e);
}