cppeditor.cpp 37.1 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
8
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
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
26
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
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
74
#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>
#include <QtGui/QAction>
75
#include <QtGui/QHeaderView>
con's avatar
con committed
76
77
78
79
80
81
#include <QtGui/QLayout>
#include <QtGui/QMenu>
#include <QtGui/QShortcut>
#include <QtGui/QTextEdit>
#include <QtGui/QComboBox>
#include <QtGui/QTreeView>
82
#include <QtGui/QSortFilterProxyModel>
con's avatar
con committed
83

84
85
#include <sstream>

con's avatar
con committed
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
using namespace CPlusPlus;
using namespace CppEditor::Internal;

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()));
    }
};

108
109
110
111
112
113
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
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;
    }
};

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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
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
251
252
} // end of anonymous namespace

253
static QualifiedNameId *qualifiedNameIdForSymbol(Symbol *s, const LookupContext &context)
con's avatar
con committed
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
{
    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
288
    : BaseTextEditorEditable(editor)
con's avatar
con committed
289
{
290
291
292
293
    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
294
295
}

296
297
CPPEditor::CPPEditor(QWidget *parent)
    : TextEditor::BaseTextEditor(parent)
298
    , m_mouseNavigationEnabled(true)
299
    , m_showingLink(false)
con's avatar
con committed
300
301
302
{
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
303
    setCodeFoldingSupported(true);
con's avatar
con committed
304
    setCodeFoldingVisible(true);
305
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320

#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

321
322
    m_modelManager = ExtensionSystem::PluginManager::instance()
        ->getObject<CppTools::CppModelManagerInterface>();
con's avatar
con committed
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344

    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);
345
346
347
348
349
350

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

351
    QTreeView *methodView = new OverviewTreeView;
con's avatar
con committed
352
353
354
355
356
357
    methodView->header()->hide();
    methodView->setItemsExpandable(false);
    m_methodCombo->setView(methodView);
    m_methodCombo->setMaxVisibleItems(20);

    m_overviewModel = new OverviewModel(this);
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
    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
374
375
376

    connect(m_methodCombo, SIGNAL(activated(int)), this, SLOT(jumpToMethod(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateMethodBoxIndex()));
377
    connect(m_methodCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateMethodBoxToolTip()));
con's avatar
con committed
378
379
380
381
382

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

    QToolBar *toolBar = editable->toolBar();
    QList<QAction*> actions = toolBar->actions();
383
384
    QWidget *w = toolBar->widgetForAction(actions.first());
    static_cast<QHBoxLayout*>(w->layout())->insertWidget(0, m_methodCombo, 1);
con's avatar
con committed
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
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
}

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);
487
488
489
    OverviewTreeView *treeView = static_cast<OverviewTreeView *>(m_methodCombo->view());
    treeView->sync();
    updateMethodBoxIndex();
con's avatar
con committed
490
491
}

492
493
494
495
496
497
498
void CPPEditor::reformatDocument()
{
    using namespace CPlusPlus;

    QByteArray source = toPlainText().toUtf8();

    Control control;
499
    StringLiteral *fileId = control.findOrInsertStringLiteral("<file>");
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
    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()));
}

520
521
522
523
524
525
526
527
528
529
530
531
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);

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

con's avatar
con committed
532
533
534
535
536
void CPPEditor::updateFileName()
{ }

void CPPEditor::jumpToMethod(int)
{
537
    QModelIndex index = m_proxyModel->mapToSource(m_methodCombo->view()->currentIndex());
con's avatar
con committed
538
539
540
541
    Symbol *symbol = m_overviewModel->symbolFromIndex(index);
    if (! symbol)
        return;

542
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
543
544
}

545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
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);
        updateMethodBoxIndex();
    }
}

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

con's avatar
con committed
564
565
566
567
568
569
570
void CPPEditor::updateMethodBoxIndex()
{
    int line = 0, column = 0;
    convertPosition(position(), &line, &column);

    QModelIndex lastIndex;

571
    const int rc = m_overviewModel->rowCount();
con's avatar
con committed
572
573
574
    for (int row = 0; row < rc; ++row) {
        const QModelIndex index = m_overviewModel->index(row, 0, QModelIndex());
        Symbol *symbol = m_overviewModel->symbolFromIndex(index);
575
        if (symbol && symbol->line() > unsigned(line))
con's avatar
con committed
576
577
578
579
            break;
        lastIndex = index;
    }

580
581
    QList<QTextEdit::ExtraSelection> selections;

con's avatar
con committed
582
583
    if (lastIndex.isValid()) {
        bool blocked = m_methodCombo->blockSignals(true);
584
        m_methodCombo->setCurrentIndex(m_proxyModel->mapFromSource(lastIndex).row());
585
        updateMethodBoxToolTip();
con's avatar
con committed
586
587
        (void) m_methodCombo->blockSignals(blocked);
    }
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603

#ifdef QTCREATOR_WITH_ADVANCED_HIGHLIGHTER
    Snapshot snapshot = m_modelManager->snapshot();
    Document::Ptr thisDocument = snapshot.value(file()->fileName());
    if (! thisDocument)
        return;

    if (Symbol *symbol = thisDocument->findSymbolAt(line, column)) {
        QTextCursor tc = textCursor();
        tc.movePosition(QTextCursor::EndOfWord);

        ExpressionUnderCursor expressionUnderCursor;

        const QString expression = expressionUnderCursor(tc);
        //qDebug() << "expression:" << expression;

604
605
606
        Snapshot snapshot;
        snapshot.insert(thisDocument->fileName(), thisDocument);

607
        TypeOfExpression typeOfExpression;
608
        typeOfExpression.setSnapshot(snapshot);
609
610
611
612
613
614
615
616
617
618
619
620
621

        const QList<TypeOfExpression::Result> results =
                typeOfExpression(expression, thisDocument, symbol, TypeOfExpression::Preprocess);

        LookupContext context = typeOfExpression.lookupContext();

        foreach (const TypeOfExpression::Result &result, results) {
            FullySpecifiedType ty = result.first;
            Symbol *symbol = result.second;

            if (file()->fileName() != symbol->fileName())
                continue;

622
623
624
            else if (symbol->isGenerated())
                continue;

Roberto Raggi's avatar
Roberto Raggi committed
625
626
627
            else if (symbol->isBlock())
                continue;

628
629
630
631
632
633
            if (symbol) {
                int column = symbol->column();

                if (column != 0)
                    --column;

634
635
636
                if (symbol->isGenerated())
                    column = 0;

637
638
                QTextCursor c(document()->findBlockByNumber(symbol->line() - 1));
                c.setPosition(c.position() + column);
639
640
641
642
643
644
645
646
647
648
649
650
651

                const QString text = c.block().text();

                int i = column;
                for (; i < text.length(); ++i) {
                    const QChar &ch = text.at(i);

                    if (ch == QLatin1Char('*') || ch == QLatin1Char('&'))
                        c.movePosition(QTextCursor::NextCharacter);
                    else
                        break;
                }

652
653
654
655
656
657
658
659
660
661
662
663
664
665
                c.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);

                QTextEdit::ExtraSelection sel;
                sel.cursor = c;
                sel.format.setBackground(Qt::darkYellow);

                selections.append(sel);
                //break;
            }
        }
    }

    setExtraSelections(CodeSemanticsSelection, selections);
#endif // QTCREATOR_WITH_ADVANCED_HIGHLIGHTER
con's avatar
con committed
666
667
}

668
669
670
671
672
void CPPEditor::updateMethodBoxToolTip()
{
    m_methodCombo->setToolTip(m_methodCombo->currentText());
}

con's avatar
con committed
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
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)
{
688
    Function *declTy = declaration->type()->asFunctionType();
con's avatar
con committed
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
    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;

733
734
735
    const Snapshot snapshot = m_modelManager->snapshot();

    Document::Ptr doc = snapshot.value(file()->fileName());
con's avatar
con committed
736
737
738
739
740
741
742
    if (!doc)
        return;
    Symbol *lastSymbol = doc->findSymbolAt(line, column);
    if (!lastSymbol || !lastSymbol->scope())
        return;

    Function *f = lastSymbol->asFunction();
743
    if (!f) {
con's avatar
con committed
744
        Scope *fs = lastSymbol->scope();
745
        if (!fs->isFunctionScope())
con's avatar
con committed
746
747
748
749
750
751
752
            fs = fs->enclosingFunctionScope();
        if (fs)
            f = fs->owner()->asFunction();
    }

    if (f) {
        TypeOfExpression typeOfExpression;
753
        typeOfExpression.setSnapshot(m_modelManager->snapshot());
con's avatar
con committed
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
        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)
770
            openCppEditorAt(linkToSymbol(declaration));
771
    } else if (lastSymbol->type()->isFunctionType()) {
con's avatar
con committed
772
        if (Symbol *def = findDefinition(lastSymbol))
773
            openCppEditorAt(linkToSymbol(def));
con's avatar
con committed
774
775
776
    }
}

777
778
CPPEditor::Link CPPEditor::findLinkAt(const QTextCursor &cursor,
                                      bool lookupDefinition)
con's avatar
con committed
779
{
780
    Link link;
781

con's avatar
con committed
782
    if (!m_modelManager)
783
        return link;
con's avatar
con committed
784

785
    const Snapshot snapshot = m_modelManager->snapshot();
con's avatar
con committed
786
    int line = 0, column = 0;
787
    convertPosition(cursor.position(), &line, &column);
788
    Document::Ptr doc = snapshot.value(file()->fileName());
con's avatar
con committed
789
    if (!doc)
790
        return link;
791

792
    QTextCursor tc = cursor;
793

794
795
796
797
798
799
800
    // 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);
    }

801
    static TokenUnderCursor tokenUnderCursor;
802
803
804
805

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

806
807
808
809
810
811
812
813
814
815
816
817
818
    // 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;
            }
        }
    }

819
820
821
    if (tk.isNot(T_IDENTIFIER))
        return link;

822
823
824
825
826
    // Find the last symbol up to the cursor position
    Symbol *lastSymbol = doc->findSymbolAt(line, column);
    if (!lastSymbol)
        return link;

827
828
    const int nameStart = tk.position();
    const int nameLength = tk.length();
829
    const int endOfName = block.position() + nameStart + nameLength;
830
831

    const QString name = block.text().mid(nameStart, nameLength);
832
    tc.setPosition(endOfName);
833
834

    // Evaluate the type of the expression under the cursor
con's avatar
con committed
835
836
837
    ExpressionUnderCursor expressionUnderCursor;
    const QString expression = expressionUnderCursor(tc);
    TypeOfExpression typeOfExpression;
838
    typeOfExpression.setSnapshot(snapshot);
con's avatar
con committed
839
840
841
842
    QList<TypeOfExpression::Result> resolvedSymbols =
            typeOfExpression(expression, doc, lastSymbol);

    if (!resolvedSymbols.isEmpty()) {
843
844
845
846
847
848
849
850
851
852
853
854
855
856
        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
857
            Symbol *def = 0;
858
            if (lookupDefinition && !lastSymbol->isFunction())
con's avatar
con committed
859
860
                def = findDefinition(symbol);

861
            link = linkToSymbol(def ? def : symbol);
862
            link.pos = block.position() + nameStart;
863
864
            link.length = nameLength;
            return link;
con's avatar
con committed
865
866
867
868
869
870
871

        // 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();
872
                openCppEditorAt(s->fileName(), s->line(), s->column());
con's avatar
con committed
873
874
875
876
            }
#endif
        }
    } else {
877
        // Handle macro uses
Roberto Raggi's avatar
Roberto Raggi committed
878
879
880
        foreach (const Document::MacroUse use, doc->macroUses()) {
            if (use.contains(endOfName - 1)) {
                const Macro &macro = use.macro();
881
                link.fileName = macro.fileName();
882
883
884
885
                link.line = macro.line();
                link.pos = use.begin();
                link.length = use.end() - use.begin();
                return link;
Roberto Raggi's avatar
Roberto Raggi committed
886
887
            }
        }
con's avatar
con committed
888
    }
889

890
    return link;
891
892
893
894
}

void CPPEditor::jumpToDefinition()
{
895
    openCppEditorAt(findLinkAt(textCursor()));
con's avatar
con committed
896
897
}

898
Symbol *CPPEditor::findDefinition(Symbol *symbol)
con's avatar
con committed
899
{
900
901
    if (symbol->isFunction())
        return 0; // symbol is a function definition.
con's avatar
con committed
902

903
    Function *funTy = symbol->type()->asFunctionType();
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
    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
930
931
932
        }
    }

933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
    // 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
952
953
954
955
956
957
958
959
960
961
962
            }
        }
    }

    return 0;
}

bool CPPEditor::isElectricCharacter(const QChar &ch) const
{
    if (ch == QLatin1Char('{') ||
        ch == QLatin1Char('}') ||
963
        ch == QLatin1Char('#')) {
con's avatar
con committed
964
965
966
967
968
        return true;
    }
    return false;
}

969
970
971
972
973
void CPPEditor::indentInsertedText(const QTextCursor &tc)
{
    indent(tc.document(), tc, QChar::Null);
}

con's avatar
con committed
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
// 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);

1009
    Core::ActionContainer *mcontext =
1010
        Core::ICore::instance()->actionManager()->actionContainer(CppEditor::Constants::M_CONTEXT);
con's avatar
con committed
1011
1012
1013
1014
1015
    QMenu *contextMenu = mcontext->menu();

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

1016
1017
1018
1019
    QAction *simplifyDeclarations = new QAction(tr("Simplify Declarations"), menu);
    connect(simplifyDeclarations, SIGNAL(triggered()), this, SLOT(simplifyDeclarations()));
    menu->addAction(simplifyDeclarations);

con's avatar
con committed
1020
1021
1022
1023
    menu->exec(e->globalPos());
    delete menu;
}

1024
1025
void CPPEditor::mouseMoveEvent(QMouseEvent *e)
{
1026
    bool linkFound = false;
1027

1028
    if (m_mouseNavigationEnabled && e->modifiers() & Qt::ControlModifier) {
1029
1030
1031
        // Link emulation behaviour for 'go to definition'
        const QTextCursor cursor = cursorForPosition(e->pos());

1032
1033
1034
1035
1036
1037
1038
1039
        // 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();
        }

1040
        const Link link = findLinkAt(cursor, false);
1041
1042

        if (onText && !link.fileName.isEmpty()) {
1043
1044
            showLink(link);
            linkFound = true;
1045
1046
1047
        }
    }

1048
1049
    if (!linkFound)
        clearLink();
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059

    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());
1060
        if (openCppEditorAt(findLinkAt(cursor))) {
1061
            clearLink();
1062
1063
1064
1065
1066
1067
1068
1069
            e->accept();
            return;
        }
    }

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

1070
1071
1072
1073
1074
1075
void CPPEditor::leaveEvent(QEvent *e)
{
    clearLink();
    TextEditor::BaseTextEditor::leaveEvent(e);
}

1076
1077
1078
void CPPEditor::keyReleaseEvent(QKeyEvent *e)
{
    // Clear link emulation when Ctrl is released
1079
1080
    if (e->key() == Qt::Key_Control)
        clearLink();
1081
1082

    TextEditor::BaseTextEditor::keyReleaseEvent(e);
1083
1084
}

1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
void CPPEditor::showLink(const Link &link)
{
    QTextEdit::ExtraSelection sel;
    sel.cursor = textCursor();
    sel.cursor.setPosition(link.pos);
    sel.cursor.setPosition(link.pos + link.length, QTextCursor::KeepAnchor);
    sel.format = m_linkFormat;
    sel.format.setFontUnderline(true);
    setExtraSelections(OtherSelection, QList<QTextEdit::ExtraSelection>() << sel);
    viewport()->setCursor(Qt::PointingHandCursor);
    m_showingLink = true;
}

void CPPEditor::clearLink()
{
    if (!m_showingLink)
        return;

    setExtraSelections(OtherSelection, QList<QTextEdit::ExtraSelection>());
    viewport()->setCursor(Qt::IBeamCursor);
    m_showingLink = false;
}

con's avatar
con committed
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
QList<int> CPPEditorEditable::context() const
{
    return m_context;
}

Core::IEditor *CPPEditorEditable::duplicate(QWidget *parent)
{
    CPPEditor *newEditor = new CPPEditor(parent);
    newEditor->duplicateFrom(editor());
    CppPlugin::instance()->initializeEditor(newEditor);
    return newEditor->editableInterface();
}

const char *CPPEditorEditable::kind() const
{
    return CppEditor::Constants::CPPEDITOR_KIND;
}

void CPPEditor::setFontSettings(const TextEditor::FontSettings &fs)
{
    TextEditor::BaseTextEditor::setFontSettings(fs);
1129
    CppHighlighter *highlighter = qobject_cast<CppHighlighter*>(baseTextDocument()->syntaxHighlighter());
con's avatar
con committed
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
    if (!highlighter)
        return;

    static QVector<QString> categories;
    if (categories.isEmpty()) {
        categories << QLatin1String(TextEditor::Constants::C_NUMBER)
                   << QLatin1String(TextEditor::Constants::C_STRING)
                   << QLatin1String(TextEditor::Constants::C_TYPE)
                   << QLatin1String(TextEditor::Constants::C_KEYWORD)
                   << QLatin1String(TextEditor::Constants::C_OPERATOR)
                   << QLatin1String(TextEditor::Constants::C_PREPROCESSOR)
                   << QLatin1String(TextEditor::Constants::C_LABEL)
Roberto Raggi's avatar
Roberto Raggi committed
1142
1143
1144
                   << QLatin1String(TextEditor::Constants::C_COMMENT)
                   << QLatin1String(TextEditor::Constants::C_DOXYGEN_COMMENT)
                   << QLatin1String(TextEditor::Constants::C_DOXYGEN_TAG);
con's avatar
con committed
1145
1146
1147
1148
1149
    }

    const QVector<QTextCharFormat> formats = fs.toTextCharFormats(categories);
    highlighter->setFormats(formats.constBegin(), formats.constEnd());
    highlighter->rehighlight();
1150
1151

    m_linkFormat = fs.toTextCharFormat(QLatin1String(TextEditor::Constants::C_LINK));
con's avatar
con committed
1152
1153
}

1154
1155
1156
1157
1158
void CPPEditor::setDisplaySettings(const TextEditor::DisplaySettings &ds)
{
    TextEditor::BaseTextEditor::setDisplaySettings(ds);
    m_mouseNavigationEnabled = ds.m_mouseNavigation;
}
con's avatar
con committed
1159
1160
1161

void CPPEditor::unCommentSelection()
{
1162
    Core::Utils::unCommentSelection(this);
con's avatar
con committed
1163
1164
}

1165
CPPEditor::Link CPPEditor::linkToSymbol(CPlusPlus::Symbol *symbol)
1166
{
1167
1168
1169
1170
    const QString fileName = QString::fromUtf8(symbol->fileName(),
                                               symbol->fileNameLength());
    unsigned line = symbol->line();
    unsigned column = symbol->column();
1171

1172
1173
    if (column)
        --column;
1174

1175
    if (symbol->isGenerated())
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
1176
        column = 0;
1177

1178
    return Link(fileName, line, column);
1179
1180
}

1181
bool CPPEditor::openCppEditorAt(const Link &link)
1182
{
1183
    if (link.fileName.isEmpty())
1184
1185
        return false;

1186
    if (baseTextDocument()->fileName() == link.fileName) {
1187
1188
        Core::EditorManager *editorManager = Core::EditorManager::instance();
        editorManager->addCurrentPositionToNavigationHistory();
1189
        gotoLine(link.line, link.column);
1190
1191
1192
1193
        setFocus();
        return true;
    }

1194
1195
1196
    return TextEditor::BaseTextEditor::openEditorAt(link.fileName,
                                                    link.line,
                                                    link.column,
1197
                                                    Constants::C_CPPEDITOR);
con's avatar
con committed
1198
}