cppeditor.cpp 66.9 KB
Newer Older
hjk's avatar
hjk committed
1
/****************************************************************************
con's avatar
con committed
2
**
3
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
hjk's avatar
hjk committed
4
** Contact: http://www.qt-project.org/legal
con's avatar
con committed
5
**
hjk's avatar
hjk committed
6
** This file is part of Qt Creator.
con's avatar
con committed
7
**
hjk's avatar
hjk committed
8 9 10 11 12 13 14
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
15
**
16
** GNU Lesser General Public License Usage
hjk's avatar
hjk committed
17 18 19 20 21 22 23 24 25
** 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.
**
** In addition, as a special exception, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
con's avatar
con committed
26 27
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
hjk's avatar
hjk committed
28
****************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30
#include "cppeditor.h"
31

32
#include "cppautocompleter.h"
con's avatar
con committed
33
#include "cppeditorconstants.h"
34
#include "cppeditorplugin.h"
35
#include "cppfollowsymbolundercursor.h"
con's avatar
con committed
36
#include "cpphighlighter.h"
37
#include "cpppreprocessordialog.h"
Leandro Melo's avatar
Leandro Melo committed
38
#include "cppquickfixassistant.h"
Roberto Raggi's avatar
Roberto Raggi committed
39

40 41 42
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/icore.h>
43
#include <cpptools/cpptoolseditorsupport.h>
Roberto Raggi's avatar
Roberto Raggi committed
44
#include <cpptools/cpptoolsplugin.h>
45
#include <cpptools/cpptoolsconstants.h>
46
#include <cpptools/cppchecksymbols.h>
Christian Kamm's avatar
Christian Kamm committed
47
#include <cpptools/cppcodeformatter.h>
48
#include <cpptools/cppcompletionassistprovider.h>
49 50
#include <cpptools/cpphighlightingsupport.h>
#include <cpptools/cpplocalsymbols.h>
51
#include <cpptools/cppqtstyleindenter.h>
52
#include <cpptools/cpptoolsreuse.h>
53 54
#include <cpptools/doxygengenerator.h>
#include <cpptools/cpptoolssettings.h>
55
#include <cpptools/symbolfinder.h>
56 57 58 59
#include <cpptools/cppmodelmanager.h>
#include <projectexplorer/session.h>
#include <projectexplorer/projectnodes.h>
#include <projectexplorer/nodesvisitor.h>
con's avatar
con committed
60
#include <texteditor/basetextdocument.h>
61
#include <texteditor/basetextdocumentlayout.h>
62 63 64
#include <texteditor/codeassist/basicproposalitem.h>
#include <texteditor/codeassist/basicproposalitemlistmodel.h>
#include <texteditor/codeassist/genericproposal.h>
con's avatar
con committed
65
#include <texteditor/fontsettings.h>
66
#include <texteditor/refactoroverlay.h>
67 68 69 70 71 72 73

#include <utils/qtcassert.h>

#include <cplusplus/ASTPath.h>
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/OverviewModel.h>
#include <cplusplus/BackwardsScanner.h>
con's avatar
con committed
74

75 76
#include <QDebug>
#include <QTimer>
77
#include <QPointer>
78 79 80 81 82 83 84 85
#include <QSignalMapper>
#include <QAction>
#include <QHeaderView>
#include <QMenu>
#include <QTextEdit>
#include <QComboBox>
#include <QTreeView>
#include <QSortFilterProxyModel>
86
#include <QToolButton>
con's avatar
con committed
87

Roberto Raggi's avatar
Roberto Raggi committed
88
enum {
89
    UPDATE_OUTLINE_INTERVAL = 500,
90 91
    UPDATE_USES_INTERVAL = 500,
    UPDATE_FUNCTION_DECL_DEF_LINK_INTERVAL = 200
Roberto Raggi's avatar
Roberto Raggi committed
92 93
};

Roberto Raggi's avatar
Roberto Raggi committed
94
using namespace CPlusPlus;
95
using namespace CppTools;
Roberto Raggi's avatar
Roberto Raggi committed
96 97
using namespace CppEditor::Internal;

con's avatar
con committed
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();
113 114 115 116
    }

    void adjustWidth()
    {
hjk's avatar
hjk committed
117
        const int w = Core::ICore::mainWindow()->geometry().width();
118 119 120 121 122 123 124 125
        setMaximumWidth(w);
        setMinimumWidth(qMin(qMax(sizeHintForColumn(0), minimumSizeHint().width()), w));
    }
};

class OverviewCombo : public QComboBox
{
public:
126
    OverviewCombo(QWidget *parent = 0) : QComboBox(parent), m_skipNextHide(false)
127 128
    {}

129 130 131 132 133 134 135 136 137 138 139
    bool eventFilter(QObject* object, QEvent* event)
    {
        if (event->type() == QEvent::MouseButtonPress && object == view()->viewport()) {
            QMouseEvent* mouseEvent = static_cast<QMouseEvent*>(event);
            QModelIndex index = view()->indexAt(mouseEvent->pos());
            if (!view()->visualRect(index).contains(mouseEvent->pos()))
                m_skipNextHide = true;
        }
        return false;
    }

140 141 142 143
    void showPopup()
    {
        static_cast<OverviewTreeView *>(view())->adjustWidth();
        QComboBox::showPopup();
con's avatar
con committed
144
    }
145 146 147 148 149 150 151 152 153 154 155

    virtual void hidePopup()
    {
        if (m_skipNextHide)
            m_skipNextHide = false;
        else
            QComboBox::hidePopup();
    }

private:
    bool m_skipNextHide;
con's avatar
con committed
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
class OverviewProxyModel : public QSortFilterProxyModel
{
    Q_OBJECT
public:
    OverviewProxyModel(CPlusPlus::OverviewModel *sourceModel, QObject *parent) :
        QSortFilterProxyModel(parent),
        m_sourceModel(sourceModel)
    {
        setSourceModel(m_sourceModel);
    }

    bool filterAcceptsRow(int sourceRow,const QModelIndex &sourceParent) const
    {
        // ignore generated symbols, e.g. by macro expansion (Q_OBJECT)
        const QModelIndex sourceIndex = m_sourceModel->index(sourceRow, 0, sourceParent);
        CPlusPlus::Symbol *symbol = m_sourceModel->symbolFromIndex(sourceIndex);
        if (symbol && symbol->isGenerated())
            return false;

        return QSortFilterProxyModel::filterAcceptsRow(sourceRow, sourceParent);
    }
private:
    CPlusPlus::OverviewModel *m_sourceModel;
};

183 184
class FindFunctionDefinitions: protected SymbolVisitor
{
Roberto Raggi's avatar
Roberto Raggi committed
185
    const Name *_declarationName;
186 187 188 189 190 191 192 193
    QList<Function *> *_functions;

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

Roberto Raggi's avatar
Roberto Raggi committed
194
    void operator()(const Name *declarationName, Scope *globals,
195 196 197 198 199
                    QList<Function *> *functions)
    {
        _declarationName = declarationName;
        _functions = functions;

Roberto Raggi's avatar
Roberto Raggi committed
200 201
        for (unsigned i = 0; i < globals->memberCount(); ++i) {
            accept(globals->memberAt(i));
202 203 204 205 206 207 208 209
        }
    }

protected:
    using SymbolVisitor::visit;

    virtual bool visit(Function *function)
    {
Roberto Raggi's avatar
Roberto Raggi committed
210 211
        const Name *name = function->name();
        if (const QualifiedNameId *q = name->asQualifiedNameId())
212
            name = q->name();
213 214 215 216 217 218 219 220

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

        return false;
    }
};

221
struct CanonicalSymbol
222
{
223
    CPPEditorWidget *editor;
224 225 226
    TypeOfExpression typeOfExpression;
    SemanticInfo info;

227
    CanonicalSymbol(CPPEditorWidget *editor, const SemanticInfo &info)
Erik Verbruggen's avatar
Erik Verbruggen committed
228
        : editor(editor), info(info)
229 230
    {
        typeOfExpression.init(info.doc, info.snapshot);
231
        typeOfExpression.setExpandTemplates(true);
232 233 234 235 236 237 238
    }

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

239
    static inline bool isIdentifierChar(const QChar &ch)
240 241 242 243
    {
        return ch.isLetterOrNumber() || ch == QLatin1Char('_');
    }

244 245 246 247 248
    Scope *getScopeAndExpression(const QTextCursor &cursor, QString *code)
    {
        return getScopeAndExpression(editor, info, cursor, code);
    }

249
    static Scope *getScopeAndExpression(CPPEditorWidget *editor, const SemanticInfo &info,
250 251
                                        const QTextCursor &cursor,
                                        QString *code)
252
    {
253
        if (!info.doc)
254 255 256 257 258 259 260 261 262 263
            return 0;

        QTextCursor tc = cursor;
        int line, col;
        editor->convertPosition(tc.position(), &line, &col);
        ++col; // 1-based line and 1-based column

        QTextDocument *document = editor->document();

        int pos = tc.position();
264

265 266
        if (!isIdentifierChar(document->characterAt(pos)))
            if (!(pos > 0 && isIdentifierChar(document->characterAt(pos - 1))))
267 268 269
                return 0;

        while (isIdentifierChar(document->characterAt(pos)))
270 271 272
            ++pos;
        tc.setPosition(pos);

273 274 275 276 277 278 279 280 281 282 283
        ExpressionUnderCursor expressionUnderCursor;
        *code = expressionUnderCursor(tc);
        return info.doc->scopeAt(line, col);
    }

    Symbol *operator()(const QTextCursor &cursor)
    {
        QString code;

        if (Scope *scope = getScopeAndExpression(cursor, &code))
            return operator()(scope, code);
284

285 286 287 288 289 290 291 292
        return 0;
    }

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

Nikolai Kosjar's avatar
Nikolai Kosjar committed
293 294
    static Symbol *canonicalSymbol(Scope *scope, const QString &code,
                                   TypeOfExpression &typeOfExpression)
295
    {
296 297
        const QList<LookupItem> results =
                typeOfExpression(code.toUtf8(), scope, TypeOfExpression::Preprocess);
298

Roberto Raggi's avatar
Roberto Raggi committed
299 300
        for (int i = results.size() - 1; i != -1; --i) {
            const LookupItem &r = results.at(i);
301
            Symbol *decl = r.declaration();
Roberto Raggi's avatar
Roberto Raggi committed
302

303
            if (!(decl && decl->enclosingScope()))
Roberto Raggi's avatar
Roberto Raggi committed
304 305
                break;

306
            if (Class *classScope = r.declaration()->enclosingScope()->asClass()) {
307 308 309 310 311 312
                const Identifier *declId = decl->identifier();
                const Identifier *classId = classScope->identifier();

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

313
                if (Function *funTy = r.declaration()->type()->asFunctionType()) {
314 315 316 317
                    if (funTy->isVirtual())
                        return r.declaration();
                }
            }
Roberto Raggi's avatar
Roberto Raggi committed
318 319 320
        }

        for (int i = 0; i < results.size(); ++i) {
321 322 323 324 325 326 327 328
            const LookupItem &r = results.at(i);

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

        return 0;
    }
329

330 331
};

332 333 334
/// Check if previous line is a CppStyle Doxygen Comment
bool isPreviousLineCppStyleComment(const QTextCursor &cursor)
{
Orgad Shaneh's avatar
Orgad Shaneh committed
335 336 337
    const QTextBlock &currentBlock = cursor.block();
    if (!currentBlock.isValid())
        return false;
338

Orgad Shaneh's avatar
Orgad Shaneh committed
339 340 341
    const QTextBlock &actual = currentBlock.previous();
    if (!actual.isValid())
        return false;
342

Orgad Shaneh's avatar
Orgad Shaneh committed
343 344 345
    const QString text = actual.text().trimmed();
    if (text.startsWith(QLatin1String("///")) || text.startsWith(QLatin1String("//!")))
        return true;
346

Orgad Shaneh's avatar
Orgad Shaneh committed
347
    return false;
348 349 350 351 352
}

/// Check if next line is a CppStyle Doxygen Comment
bool isNextLineCppStyleComment(const QTextCursor &cursor)
{
Orgad Shaneh's avatar
Orgad Shaneh committed
353 354 355
    const QTextBlock &currentBlock = cursor.block();
    if (!currentBlock.isValid())
        return false;
356

Orgad Shaneh's avatar
Orgad Shaneh committed
357 358 359
    const QTextBlock &actual = currentBlock.next();
    if (!actual.isValid())
        return false;
360

Orgad Shaneh's avatar
Orgad Shaneh committed
361 362 363
    const QString text = actual.text().trimmed();
    if (text.startsWith(QLatin1String("///")) || text.startsWith(QLatin1String("//!")))
        return true;
364

Orgad Shaneh's avatar
Orgad Shaneh committed
365
    return false;
366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394
}

/// Check if line is a CppStyle Doxygen comment and the cursor is after the comment
bool isCursorAfterCppComment(const QTextCursor &cursor, const QTextDocument *doc)
{
    QTextCursor cursorFirstNonBlank(cursor);
    cursorFirstNonBlank.movePosition(QTextCursor::StartOfLine);
    while (doc->characterAt(cursorFirstNonBlank.position()).isSpace()
           && cursorFirstNonBlank.movePosition(QTextCursor::NextCharacter)) {
    }

    const QTextBlock& block = cursorFirstNonBlank.block();
    const QString text = block.text().trimmed();
    if (text.startsWith(QLatin1String("///")) || text.startsWith(QLatin1String("//!")))
        return (cursor.position() >= cursorFirstNonBlank.position() + 3);

    return false;
}

bool isCppStyleContinuation(const QTextCursor& cursor)
{
    return (isPreviousLineCppStyleComment(cursor) || isNextLineCppStyleComment(cursor));
}

DoxygenGenerator::DocumentationStyle doxygenStyle(const QTextCursor &cursor,
                                                  const QTextDocument *doc)
{
    const int pos = cursor.position();

395
    QString comment = QString(doc->characterAt(pos - 3))
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
            + doc->characterAt(pos - 2)
            + doc->characterAt(pos - 1);

    if (comment == QLatin1String("/**"))
        return CppTools::DoxygenGenerator::JavaStyle;
    else if (comment == QLatin1String("/*!"))
        return CppTools::DoxygenGenerator::QtStyle;
    else if (comment == QLatin1String("///"))
        return CppTools::DoxygenGenerator::CppStyleA;
    else
        return CppTools::DoxygenGenerator::CppStyleB;
}

bool handleDoxygenCppStyleContinuation(QTextCursor &cursor,
                                       QKeyEvent *e)
{
    const int blockPos = cursor.positionInBlock();
    const QString &text = cursor.block().text();
    int offset = 0;
    for (; offset < blockPos; ++offset) {
        if (!text.at(offset).isSpace())
            break;
    }

    // If the line does not start with the comment we don't
    // consider it as a continuation. Handles situations like:
    // void d(); ///<enter>
    if (!(text.trimmed().startsWith(QLatin1String("///"))
Orgad Shaneh's avatar
Orgad Shaneh committed
424 425 426
          || text.startsWith(QLatin1String("//!")))) {
        return false;
    }
427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499

    QString newLine(QLatin1Char('\n'));
    newLine.append(QString(offset, QLatin1Char(' '))); // indent correctly

    const QString commentMarker = text.mid(offset, 3);
    newLine.append(commentMarker);

    cursor.insertText(newLine);
    e->accept();
    return true;
}

bool handleDoxygenContinuation(QTextCursor &cursor,
                               QKeyEvent *e,
                               const QTextDocument *doc,
                               const bool enableDoxygen,
                               const bool leadingAsterisks)
{
    // It might be a continuation if:
    // a) current line starts with /// or //! and cursor is positioned after the comment
    // b) current line is in the middle of a multi-line Qt or Java style comment

    if (enableDoxygen && !cursor.atEnd() && isCursorAfterCppComment(cursor, doc))
        return handleDoxygenCppStyleContinuation(cursor, e);

    if (!leadingAsterisks)
        return false;

    // We continue the comment if the cursor is after a comment's line asterisk and if
    // there's no asterisk immediately after the cursor (that would already be considered
    // a leading asterisk).
    int offset = 0;
    const int blockPos = cursor.positionInBlock();
    const QString &text = cursor.block().text();
    for (; offset < blockPos; ++offset) {
        if (!text.at(offset).isSpace())
            break;
    }

    if (offset < blockPos
            && (text.at(offset) == QLatin1Char('*')
                || (offset < blockPos - 1
                    && text.at(offset) == QLatin1Char('/')
                    && text.at(offset + 1) == QLatin1Char('*')))) {
        int followinPos = blockPos;
        for (; followinPos < text.length(); ++followinPos) {
            if (!text.at(followinPos).isSpace())
                break;
        }
        if (followinPos == text.length()
                || text.at(followinPos) != QLatin1Char('*')) {
            QString newLine(QLatin1Char('\n'));
            QTextCursor c(cursor);
            c.movePosition(QTextCursor::StartOfBlock);
            c.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, offset);
            newLine.append(c.selectedText());
            if (text.at(offset) == QLatin1Char('/')) {
                newLine.append(QLatin1String(" *"));
            } else {
                int start = offset;
                while (offset < blockPos && text.at(offset) == QLatin1Char('*'))
                    ++offset;
                newLine.append(QString(offset - start, QLatin1Char('*')));
            }
            cursor.insertText(newLine);
            e->accept();
            return true;
        }
    }

    return false;
}

con's avatar
con committed
500 501
} // end of anonymous namespace

502 503
CPPEditor::CPPEditor(CPPEditorWidget *editor)
    : BaseTextEditor(editor)
con's avatar
con committed
504
{
505 506 507
    m_context.add(CppEditor::Constants::C_CPPEDITOR);
    m_context.add(ProjectExplorer::Constants::LANG_CXX);
    m_context.add(TextEditor::Constants::C_TEXTEDITOR);
con's avatar
con committed
508 509
}

510 511
Q_GLOBAL_STATIC(CppTools::SymbolFinder, symbolFinder)

512 513
CPPEditorWidget::CPPEditorWidget(QWidget *parent)
    : TextEditor::BaseTextEditorWidget(parent)
514
    , m_currentRenameSelection(NoCurrentRenameSelection)
515
    , m_inRename(false)
mae's avatar
mae committed
516 517
    , m_inRenameChanged(false)
    , m_firstRenameChange(false)
518
    , m_objcEnabled(false)
519
    , m_commentsSettings(CppTools::CppToolsSettings::instance()->commentsSettings())
520
    , m_followSymbolUnderCursor(new FollowSymbolUnderCursor(this))
con's avatar
con committed
521
{
522
    qRegisterMetaType<SemanticInfo>("CppTools::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
523

con's avatar
con committed
524 525
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
526
    setCodeFoldingSupported(true);
527
    setIndenter(new CppTools::CppQtStyleIndenter);
528
    setAutoCompleter(new CppAutoCompleter);
dt's avatar
dt committed
529

530
    baseTextDocument()->setSyntaxHighlighter(new CppHighlighter);
con's avatar
con committed
531

532
    m_modelManager = CppModelManagerInterface::instance();
con's avatar
con committed
533
    if (m_modelManager) {
534 535 536 537 538
        CppEditorSupport *editorSupport = m_modelManager->cppEditorSupport(editor());
        connect(editorSupport, SIGNAL(documentUpdated()),
                this, SLOT(onDocumentUpdated()));
        connect(editorSupport, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
                this, SLOT(updateSemanticInfo(CppTools::SemanticInfo)));
Robert Loehning's avatar
Robert Loehning committed
539 540
        connect(editorSupport, SIGNAL(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)),
                this, SLOT(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)));
con's avatar
con committed
541
    }
542

543
    m_highlightRevision = 0;
Nikolai Kosjar's avatar
Nikolai Kosjar committed
544 545 546 547
    connect(&m_highlightWatcher, SIGNAL(resultsReadyAt(int,int)),
            SLOT(highlightSymbolUsages(int,int)));
    connect(&m_highlightWatcher, SIGNAL(finished()),
            SLOT(finishHighlightSymbolUsages()));
548 549 550 551

    m_referencesRevision = 0;
    m_referencesCursorPosition = 0;
    connect(&m_referencesWatcher, SIGNAL(finished()), SLOT(markSymbolsNow()));
552 553 554 555 556 557 558

    connect(this, SIGNAL(refactorMarkerClicked(TextEditor::RefactorMarker)),
            this, SLOT(onRefactorMarkerClicked(TextEditor::RefactorMarker)));

    m_declDefLinkFinder = new FunctionDeclDefLinkFinder(this);
    connect(m_declDefLinkFinder, SIGNAL(foundLink(QSharedPointer<FunctionDeclDefLink>)),
            this, SLOT(onFunctionDeclDefLinkFound(QSharedPointer<FunctionDeclDefLink>)));
559 560 561 562 563

    connect(CppTools::CppToolsSettings::instance(),
            SIGNAL(commentsSettingsChanged(CppTools::CommentsSettings)),
            this,
            SLOT(onCommentsSettingsChanged(CppTools::CommentsSettings)));
con's avatar
con committed
564 565
}

566
CPPEditorWidget::~CPPEditorWidget()
con's avatar
con committed
567
{
568
    if (m_modelManager)
569
        m_modelManager->deleteCppEditorSupport(editor());
con's avatar
con committed
570 571
}

572
TextEditor::BaseTextEditor *CPPEditorWidget::createEditor()
con's avatar
con committed
573
{
574
    CPPEditor *editable = new CPPEditor(this);
con's avatar
con committed
575 576 577 578
    createToolBar(editable);
    return editable;
}

579
void CPPEditorWidget::createToolBar(CPPEditor *editor)
con's avatar
con committed
580
{
581
    m_outlineCombo = new OverviewCombo;
Kai Koehne's avatar
Kai Koehne committed
582
    m_outlineCombo->setMinimumContentsLength(22);
583 584

    // Make the combo box prefer to expand
Kai Koehne's avatar
Kai Koehne committed
585
    QSizePolicy policy = m_outlineCombo->sizePolicy();
586
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
Kai Koehne's avatar
Kai Koehne committed
587
    m_outlineCombo->setSizePolicy(policy);
588

Kai Koehne's avatar
Kai Koehne committed
589 590
    QTreeView *outlineView = new OverviewTreeView;
    outlineView->header()->hide();
591
    outlineView->setItemsExpandable(true);
Kai Koehne's avatar
Kai Koehne committed
592
    m_outlineCombo->setView(outlineView);
593
    m_outlineCombo->setMaxVisibleItems(40);
594
    outlineView->viewport()->installEventFilter(m_outlineCombo);
con's avatar
con committed
595

Kai Koehne's avatar
Kai Koehne committed
596 597
    m_outlineModel = new OverviewModel(this);
    m_proxyModel = new OverviewProxyModel(m_outlineModel, this);
598
    if (CppEditorPlugin::instance()->sortedOutline())
599 600
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
Kai Koehne's avatar
Kai Koehne committed
601
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedOutline()
602 603
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
Kai Koehne's avatar
Kai Koehne committed
604
    m_outlineCombo->setModel(m_proxyModel);
605

Kai Koehne's avatar
Kai Koehne committed
606 607
    m_outlineCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort Alphabetically"), m_outlineCombo);
608
    m_sortAction->setCheckable(true);
Kai Koehne's avatar
Kai Koehne committed
609
    m_sortAction->setChecked(sortedOutline());
610 611
    connect(m_sortAction, SIGNAL(toggled(bool)),
            CppEditorPlugin::instance(), SLOT(setSortedOutline(bool)));
Kai Koehne's avatar
Kai Koehne committed
612
    m_outlineCombo->addAction(m_sortAction);
con's avatar
con committed
613

614 615 616 617 618
    m_updateOutlineTimer = new QTimer(this);
    m_updateOutlineTimer->setSingleShot(true);
    m_updateOutlineTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
    connect(m_updateOutlineTimer, SIGNAL(timeout()), this, SLOT(updateOutlineNow()));

Kai Koehne's avatar
Kai Koehne committed
619 620 621 622
    m_updateOutlineIndexTimer = new QTimer(this);
    m_updateOutlineIndexTimer->setSingleShot(true);
    m_updateOutlineIndexTimer->setInterval(UPDATE_OUTLINE_INTERVAL);
    connect(m_updateOutlineIndexTimer, SIGNAL(timeout()), this, SLOT(updateOutlineIndexNow()));
Roberto Raggi's avatar
Roberto Raggi committed
623

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
624 625 626 627 628
    m_updateUsesTimer = new QTimer(this);
    m_updateUsesTimer->setSingleShot(true);
    m_updateUsesTimer->setInterval(UPDATE_USES_INTERVAL);
    connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

629 630 631
    m_updateFunctionDeclDefLinkTimer = new QTimer(this);
    m_updateFunctionDeclDefLinkTimer->setSingleShot(true);
    m_updateFunctionDeclDefLinkTimer->setInterval(UPDATE_FUNCTION_DECL_DEF_LINK_INTERVAL);
Nikolai Kosjar's avatar
Nikolai Kosjar committed
632 633
    connect(m_updateFunctionDeclDefLinkTimer, SIGNAL(timeout()),
            this, SLOT(updateFunctionDeclDefLinkNow()));
634

Kai Koehne's avatar
Kai Koehne committed
635 636 637
    connect(m_outlineCombo, SIGNAL(activated(int)), this, SLOT(jumpToOutlineElement(int)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateOutlineIndex()));
    connect(m_outlineCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateOutlineToolTip()));
con's avatar
con committed
638

639 640
    // set up slots to document changes
    updateContentsChangedSignal();
con's avatar
con committed
641

642 643 644
    // set up function declaration - definition link
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(updateFunctionDeclDefLink()));
    connect(this, SIGNAL(textChanged()), this, SLOT(updateFunctionDeclDefLink()));
Roberto Raggi's avatar
Roberto Raggi committed
645 646 647 648 649

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

650 651 652 653
    QToolButton *hashButton = new QToolButton(this);
    hashButton->setText(QLatin1String("#"));
    connect(hashButton, SIGNAL(clicked()), this, SLOT(showPreProcessorWidget()));
    editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, hashButton);
654
    editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, m_outlineCombo);
con's avatar
con committed
655 656
}

657
void CPPEditorWidget::paste()
mae's avatar
mae committed
658
{
659
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
660
        BaseTextEditorWidget::paste();
mae's avatar
mae committed
661 662 663 664
        return;
    }

    startRename();
665
    BaseTextEditorWidget::paste();
mae's avatar
mae committed
666 667 668
    finishRename();
}

669
void CPPEditorWidget::cut()
mae's avatar
mae committed
670
{
671
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
672
        BaseTextEditorWidget::cut();
mae's avatar
mae committed
673 674 675 676
        return;
    }

    startRename();
677
    BaseTextEditorWidget::cut();
mae's avatar
mae committed
678 679 680
    finishRename();
}

681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701
void CPPEditorWidget::selectAll()
{
    // if we are currently renaming a symbol
    // and the cursor is over that symbol, select just that symbol
    if (m_currentRenameSelection != NoCurrentRenameSelection) {
        QTextCursor cursor = textCursor();
        int selectionBegin = m_currentRenameSelectionBegin.position();
        int selectionEnd = m_currentRenameSelectionEnd.position();

        if (cursor.position() >= selectionBegin
                && cursor.position() <= selectionEnd) {
            cursor.setPosition(selectionBegin);
            cursor.setPosition(selectionEnd, QTextCursor::KeepAnchor);
            setTextCursor(cursor);
            return;
        }
    }

    BaseTextEditorWidget::selectAll();
}

702
void CPPEditorWidget::setMimeType(const QString &mt)
703
{
704
    const QString &filePath = editor()->document()->filePath();
705 706 707 708 709 710 711 712
    const QString &projectFile = ProjectExplorer::SessionManager::value(
                QLatin1String(Constants::CPP_PREPROCESSOR_PROJECT_PREFIX) + filePath).toString();
    const QByteArray &additionalDirectives = ProjectExplorer::SessionManager::value(
                projectFile + QLatin1Char(',') + filePath).toByteArray();

    QSharedPointer<SnapshotUpdater> updater
            = m_modelManager->cppEditorSupport(editor())->snapshotUpdater();
    updater->setEditorDefines(additionalDirectives);
713

714
    BaseTextEditorWidget::setMimeType(mt);
715 716
    setObjCEnabled(mt == QLatin1String(CppTools::Constants::OBJECTIVE_C_SOURCE_MIMETYPE)
                   || mt == QLatin1String(CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE));
717 718
}

719
void CPPEditorWidget::setObjCEnabled(bool onoff)
720 721 722 723
{
    m_objcEnabled = onoff;
}

724
bool CPPEditorWidget::isObjCEnabled() const
725 726
{ return m_objcEnabled; }

727
void CPPEditorWidget::startRename()
mae's avatar
mae committed
728 729 730 731
{
    m_inRenameChanged = false;
}

732
void CPPEditorWidget::finishRename()
mae's avatar
mae committed
733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762
{
    if (!m_inRenameChanged)
        return;

    m_inRename = true;

    QTextCursor cursor = textCursor();
    cursor.joinPreviousEditBlock();

    cursor.setPosition(m_currentRenameSelectionEnd.position());
    cursor.setPosition(m_currentRenameSelectionBegin.position(), QTextCursor::KeepAnchor);
    m_renameSelections[m_currentRenameSelection].cursor = cursor;
    QString text = cursor.selectedText();

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        if (i == m_currentRenameSelection)
            continue;
        QTextEdit::ExtraSelection &s = m_renameSelections[i];
        int pos = s.cursor.selectionStart();
        s.cursor.removeSelectedText();
        s.cursor.insertText(text);
        s.cursor.setPosition(pos, QTextCursor::KeepAnchor);
    }

    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
    cursor.endEditBlock();

    m_inRename = false;
}

763
void CPPEditorWidget::abortRename()
764
{
765
    if (m_currentRenameSelection <= NoCurrentRenameSelection)
mae's avatar
mae committed
766
        return;
767
    m_renameSelections[m_currentRenameSelection].format = m_occurrencesFormat;
768
    m_currentRenameSelection = NoCurrentRenameSelection;
mae's avatar
mae committed
769 770
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
771
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
772

773
    semanticRehighlight(/* force = */ true);
774 775
}

776 777 778
/// \brief Called by \c CppEditorSupport when the document corresponding to the
///        file in this editor is updated.
void CPPEditorWidget::onDocumentUpdated()
con's avatar
con committed
779
{
780
    m_updateOutlineTimer->start();
con's avatar
con committed
781 782
}

783
const Macro *CPPEditorWidget::findCanonicalMacro(const QTextCursor &cursor, Document::Ptr doc) const
Christian Kamm's avatar
Christian Kamm committed
784
{
785
    if (!doc)
Christian Kamm's avatar
Christian Kamm committed
786 787 788 789 790
        return 0;

    int line, col;
    convertPosition(cursor.position(), &line, &col);

791 792 793 794 795 796
    if (const Macro *macro = doc->findMacroDefinitionAt(line)) {
        QTextCursor macroCursor = cursor;
        const QByteArray name = identifierUnderCursor(&macroCursor).toLatin1();
        if (macro->name() == name)
            return macro;
    } else if (const Document::MacroUse *use = doc->findMacroUseAt(cursor.position())) {
Christian Kamm's avatar
Christian Kamm committed
797
        return &use->macro();
798
    }
Christian Kamm's avatar
Christian Kamm committed
799 800 801

    return 0;
}
802

803
void CPPEditorWidget::findUsages()
804
{
805 806 807
    if (!m_modelManager)
        return;

808
    SemanticInfo info = m_lastSemanticInfo;
809
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
810
    info.snapshot.insert(info.doc);
811

812
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
Christian Kamm's avatar
Christian Kamm committed
813
        m_modelManager->findMacroUsages(*macro);
814 815 816 817 818
    } else {
        CanonicalSymbol cs(this, info);
        Symbol *canonicalSymbol = cs(textCursor());
        if (canonicalSymbol)
            m_modelManager->findUsages(canonicalSymbol, cs.context());
819
    }
820 821
}

822

823
void CPPEditorWidget::renameUsagesNow(const QString &replacement)
824
{
825 826 827
    if (!m_modelManager)
        return;

828
    SemanticInfo info = m_lastSemanticInfo;
829
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
830 831
    info.snapshot.insert(info.doc);

832 833 834 835 836 837 838 839
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
        m_modelManager->renameMacroUsages(*macro, replacement);
    } else {
        CanonicalSymbol cs(this, info);
        if (Symbol *canonicalSymbol = cs(textCursor()))
            if (canonicalSymbol->identifier() != 0)
                m_modelManager->renameUsages(canonicalSymbol, cs.context(), replacement);
    }
840 841
}

842
void CPPEditorWidget::renameUsages()
843
{
844 845 846
    renameUsagesNow();
}

847
void CPPEditorWidget::markSymbolsNow()
848
{
849 850 851 852 853 854
    if (m_references.isCanceled())
        return;
    else if (m_referencesCursorPosition != position())
        return;
    else if (m_referencesRevision != editorRevision())
        return;
855

856 857 858
    const SemanticInfo info = m_lastSemanticInfo;
    TranslationUnit *unit = info.doc->translationUnit();
    const QList<int> result = m_references.result();
859 860 861

    QList<QTextEdit::ExtraSelection> selections;

862 863 864
    foreach (int index, result) {
        unsigned line, column;
        unit->getTokenPosition(index, &line, &column);
865

866 867
        if (column)
            --column;  // adjust the column position.
868

869
        const int len = unit->tokenAt(index).f.length;
870

871 872 873
        QTextCursor cursor(document()->findBlockByNumber(line - 1));
        cursor.setPosition(cursor.position() + column);
        cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
874

875 876 877 878
        QTextEdit::ExtraSelection sel;
        sel.format = m_occurrencesFormat;
        sel.cursor = cursor;
        selections.append(sel);
879

Roberto Raggi's avatar
Roberto Raggi committed
880
    }
881 882

    setExtraSelections(CodeSemanticsSelection, selections);
Roberto Raggi's avatar
Roberto Raggi committed
883 884
}

Nikolai Kosjar's avatar
Nikolai Kosjar committed
885 886
static QList<int> lazyFindReferences(Scope *scope, QString code, Document::Ptr doc,
                                     Snapshot snapshot)
887 888
{
    TypeOfExpression typeOfExpression;
889 890
    snapshot.insert(doc);
    typeOfExpression.init(doc, snapshot);
891 892
    // make possible to instantiate templates
    typeOfExpression.setExpandTemplates(true);
893
    if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression))
Nikolai Kosjar's avatar
Nikolai Kosjar committed
894 895
        return CppModelManagerInterface::instance()->references(canonicalSymbol,
                                                                typeOfExpression.context());
896 897 898
    return QList<int>();
}

899
void CPPEditorWidget::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
900 901 902
{
    abortRename();

903
    if (!info.doc)
904 905
        return;

906 907 908 909 910 911 912
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
        QList<QTextEdit::ExtraSelection> selections;

        //Macro definition
        if (macro->fileName() == info.doc->fileName()) {
            QTextCursor cursor(document());
            cursor.setPosition(macro->offset());
Nikolai Kosjar's avatar
Nikolai Kosjar committed
913 914
            cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor,
                                macro->name().length());
915 916 917 918 919 920 921 922

            QTextEdit::ExtraSelection sel;
            sel.format = m_occurrencesFormat;
            sel.cursor = cursor;
            selections.append(sel);
        }

        //Other macro uses
923
        foreach (const Document::MacroUse &use, info.doc->macroUses()) {
924 925 926 927 928 929 930 931 932 933 934 935 936 937 938
            if (use.macro().line() != macro->line()
                    || use.macro().offset() != macro->offset()
                    || use.macro().length() != macro->length()
                    || use.macro().fileName() != macro->fileName())
                continue;

            QTextCursor cursor(document());
            cursor.setPosition(use.begin());
            cursor.setPosition(use.end(), QTextCursor::KeepAnchor);

            QTextEdit::ExtraSelection sel;
            sel.format = m_occurrencesFormat;
            sel.cursor = cursor;
            selections.append(sel);
        }
939

940 941 942 943 944 945 946 947
        setExtraSelections(CodeSemanticsSelection, selections);
    } else {
        CanonicalSymbol cs(this, info);
        QString expression;
        if (Scope *scope = cs.getScopeAndExpression(this, info, tc, &expression)) {
            m_references.cancel();
            m_referencesRevision = info.revision;
            m_referencesCursorPosition = position();
Nikolai Kosjar's avatar
Nikolai Kosjar committed
948 949
            m_references = QtConcurrent::run(&lazyFindReferences, scope, expression, info.doc,
                                             info.snapshot);
950 951 952 953
            m_referencesWatcher.setFuture(m_references);
        } else {
            const QList<QTextEdit::ExtraSelection> selections = extraSelections(CodeSemanticsSelection);

954
            if (!selections.isEmpty())
955 956
                setExtraSelections(CodeSemanticsSelection, QList<QTextEdit::ExtraSelection>());
        }
957 958 959
    }
}

960
void CPPEditorWidget::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
961
{
962 963 964
    if (!m_modelManager)
        return;

965 966
    CppEditorSupport *edSup = m_modelManager->cppEditorSupport(editor());
    updateSemanticInfo(edSup->recalculateSemanticInfo(/* emitSignalWhenFinished = */ false));
mae's avatar
mae committed
967
    abortRename();
968

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
969 970 971 972 973
    QTextCursor c = textCursor();

    for (int i = 0; i < m_renameSelections.size(); ++i) {
        QTextEdit::ExtraSelection s = m_renameSelections.at(i);
        if (c.position() >= s.cursor.anchor()
974
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
975
            m_currentRenameSelection = i;
mae's avatar
mae committed
976 977 978 979
            m_firstRenameChange = true;
            m_currentRenameSelectionBegin = QTextCursor(c.document()->docHandle(),
                                                        m_renameSelections[i].cursor.selectionStart());
            m_currentRenameSelectionEnd = QTextCursor(c.document()->docHandle(),
Nikolai Kosjar's avatar
Nikolai Kosjar committed
980
                                                      m_renameSelections[i].cursor.selectionEnd());
981
            m_renameSelections[i].format = m_occurrenceRenameFormat;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
982 983 984 985
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
986 987

    if (m_renameSelections.isEmpty())
988
        renameUsages();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
989 990
}

991
void CPPEditorWidget::onContentsChanged(int position, int charsRemoved, int charsAdded)
992
{
993
    if (m_currentRenameSelection == NoCurrentRenameSelection || m_inRename)
994 995
        return;

mae's avatar
mae committed
996 997 998
    if (position + charsAdded == m_currentRenameSelectionBegin.position()) {
        // we are inserting at the beginning of the rename selection => expand
        m_currentRenameSelectionBegin.setPosition(position);
Nikolai Kosjar's avatar
Nikolai Kosjar committed
999 1000
        m_renameSelections[m_currentRenameSelection].cursor.setPosition(position,
                                                                        QTextCursor::KeepAnchor);
mae's avatar
mae committed
1001 1002
    }

Nikolai Kosjar's avatar
Nikolai Kosjar committed
1003 1004
    // the condition looks odd, but keep in mind that the begin
    // and end cursors do move automatically
mae's avatar
mae committed
1005 1006 1007 1008
    m_inRenameChanged = (position >= m_currentRenameSelectionBegin.position()
                         && position + charsAdded <= m_currentRenameSelectionEnd.position());

    if (!m_inRenameChanged)
1009 1010 1011 1012 1013 1014
        abortRename();

    if (charsRemoved > 0)
        updateUses();
}

1015 1016 1017 1018 1019 1020 1021
void CPPEditorWidget::jumpToOutlineElement(int index)
{
    QModelIndex modelIndex = m_outlineCombo->view()->currentIndex();
    // When the user clicks on an item in the combo box,
    // the view's currentIndex is updated, so we want to use that.
    // When the scroll wheel was used on the combo box,
    // the view's currentIndex is not updated,
1022
    // but the passed index to this function is correct.
1023 1024 1025 1026 1027 1028 1029 1030
    // So, if the view has a current index, we reset it, to be able
    // to distinguish wheel events later
    if (modelIndex.isValid())
        m_outlineCombo->view()->setCurrentIndex(QModelIndex());
    else
        modelIndex = m_proxyModel->index(index, 0); // toplevel index
    QModelIndex sourceIndex = m_proxyModel->mapToSource(modelIndex);
    Symbol *symbol = m_outlineModel->symbolFromIndex(sourceIndex);
1031
    if (!symbol)
con's avatar
con committed
1032 1033
        return;

1034
    openCppEditorAt(linkToSymbol(symbol));
con's avatar
con committed
1035 1036