cppeditor.cpp 68.5 KB
Newer Older
hjk's avatar
hjk committed
1
/****************************************************************************
con's avatar
con committed
2
**
3
** Copyright (C) 2014 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

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

    const QString commentMarker = text.mid(offset, 3);
    newLine.append(commentMarker);
433
    newLine.append(QLatin1Char(' '));
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

    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('/')) {
485
                newLine.append(QLatin1String(" * "));
486 487 488 489 490
            } else {
                int start = offset;
                while (offset < blockPos && text.at(offset) == QLatin1Char('*'))
                    ++offset;
                newLine.append(QString(offset - start, QLatin1Char('*')));
491
                newLine.append(QLatin1Char(' '));
492 493 494 495 496 497 498 499 500 501
            }
            cursor.insertText(newLine);
            e->accept();
            return true;
        }
    }

    return false;
}

con's avatar
con committed
502 503
} // end of anonymous namespace

504 505
CPPEditor::CPPEditor(CPPEditorWidget *editor)
    : BaseTextEditor(editor)
con's avatar
con committed
506
{
507 508 509
    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
510 511
}

512 513
Q_GLOBAL_STATIC(CppTools::SymbolFinder, symbolFinder)

514
CPPEditorWidget::CPPEditorWidget(QWidget *parent)
515
    : TextEditor::BaseTextEditorWidget(new CPPEditorDocument(), parent)
con's avatar
con committed
516
{
517
    baseTextDocument()->setIndenter(new CppTools::CppQtStyleIndenter);
518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
    ctor();
}

CPPEditorWidget::CPPEditorWidget(CPPEditorWidget *other)
    : TextEditor::BaseTextEditorWidget(other)
{
    ctor();
}

void CPPEditorWidget::ctor()
{
    m_currentRenameSelection = NoCurrentRenameSelection;
    m_inRename = false;
    m_inRenameChanged = false;
    m_firstRenameChange = false;
    m_objcEnabled = false;
    m_commentsSettings = CppTools::CppToolsSettings::instance()->commentsSettings();
    m_followSymbolUnderCursor.reset(new FollowSymbolUnderCursor(this));
    m_preprocessorButton = 0;

538
    qRegisterMetaType<SemanticInfo>("CppTools::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
539

con's avatar
con committed
540 541
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
542
    setCodeFoldingSupported(true);
543
    setAutoCompleter(new CppAutoCompleter);
dt's avatar
dt committed
544

545
    m_modelManager = CppModelManagerInterface::instance();
con's avatar
con committed
546
    if (m_modelManager) {
547 548 549 550 551
        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
552 553
        connect(editorSupport, SIGNAL(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)),
                this, SLOT(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)));
con's avatar
con committed
554
    }
555

556
    m_highlightRevision = 0;
Nikolai Kosjar's avatar
Nikolai Kosjar committed
557 558 559 560
    connect(&m_highlightWatcher, SIGNAL(resultsReadyAt(int,int)),
            SLOT(highlightSymbolUsages(int,int)));
    connect(&m_highlightWatcher, SIGNAL(finished()),
            SLOT(finishHighlightSymbolUsages()));
561 562 563 564

    m_referencesRevision = 0;
    m_referencesCursorPosition = 0;
    connect(&m_referencesWatcher, SIGNAL(finished()), SLOT(markSymbolsNow()));
565 566 567 568 569 570 571

    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>)));
572 573 574 575 576

    connect(CppTools::CppToolsSettings::instance(),
            SIGNAL(commentsSettingsChanged(CppTools::CommentsSettings)),
            this,
            SLOT(onCommentsSettingsChanged(CppTools::CommentsSettings)));
577 578 579 580 581 582 583

    connect(baseTextDocument(), SIGNAL(filePathChanged(QString,QString)),
            this, SLOT(onFilePathChanged()));
    connect(baseTextDocument(), SIGNAL(mimeTypeChanged()),
            this, SLOT(onMimeTypeChanged()));
    onFilePathChanged();
    onMimeTypeChanged();
con's avatar
con committed
584 585
}

586
CPPEditorWidget::~CPPEditorWidget()
con's avatar
con committed
587
{
588
    if (m_modelManager)
589
        m_modelManager->deleteCppEditorSupport(editor());
con's avatar
con committed
590 591
}

592
TextEditor::BaseTextEditor *CPPEditorWidget::createEditor()
con's avatar
con committed
593
{
594
    CPPEditor *editable = new CPPEditor(this);
con's avatar
con committed
595 596 597 598
    createToolBar(editable);
    return editable;
}

599
void CPPEditorWidget::createToolBar(CPPEditor *editor)
con's avatar
con committed
600
{
601
    m_outlineCombo = new OverviewCombo;
Kai Koehne's avatar
Kai Koehne committed
602
    m_outlineCombo->setMinimumContentsLength(22);
603 604

    // Make the combo box prefer to expand
Kai Koehne's avatar
Kai Koehne committed
605
    QSizePolicy policy = m_outlineCombo->sizePolicy();
606
    policy.setHorizontalPolicy(QSizePolicy::Expanding);
Kai Koehne's avatar
Kai Koehne committed
607
    m_outlineCombo->setSizePolicy(policy);
608

Kai Koehne's avatar
Kai Koehne committed
609 610
    QTreeView *outlineView = new OverviewTreeView;
    outlineView->header()->hide();
611
    outlineView->setItemsExpandable(true);
Kai Koehne's avatar
Kai Koehne committed
612
    m_outlineCombo->setView(outlineView);
613
    m_outlineCombo->setMaxVisibleItems(40);
614
    outlineView->viewport()->installEventFilter(m_outlineCombo);
con's avatar
con committed
615

Kai Koehne's avatar
Kai Koehne committed
616 617
    m_outlineModel = new OverviewModel(this);
    m_proxyModel = new OverviewProxyModel(m_outlineModel, this);
618
    if (CppEditorPlugin::instance()->sortedOutline())
619 620
        m_proxyModel->sort(0, Qt::AscendingOrder);
    else
Kai Koehne's avatar
Kai Koehne committed
621
        m_proxyModel->sort(-1, Qt::AscendingOrder); // don't sort yet, but set column for sortedOutline()
622 623
    m_proxyModel->setDynamicSortFilter(true);
    m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
Kai Koehne's avatar
Kai Koehne committed
624
    m_outlineCombo->setModel(m_proxyModel);
625

Kai Koehne's avatar
Kai Koehne committed
626 627
    m_outlineCombo->setContextMenuPolicy(Qt::ActionsContextMenu);
    m_sortAction = new QAction(tr("Sort Alphabetically"), m_outlineCombo);
628
    m_sortAction->setCheckable(true);
Kai Koehne's avatar
Kai Koehne committed
629
    m_sortAction->setChecked(sortedOutline());
630 631
    connect(m_sortAction, SIGNAL(toggled(bool)),
            CppEditorPlugin::instance(), SLOT(setSortedOutline(bool)));
Kai Koehne's avatar
Kai Koehne committed
632
    m_outlineCombo->addAction(m_sortAction);
con's avatar
con committed
633

634 635 636 637 638
    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
639 640 641 642
    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
643

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
644 645 646 647 648
    m_updateUsesTimer = new QTimer(this);
    m_updateUsesTimer->setSingleShot(true);
    m_updateUsesTimer->setInterval(UPDATE_USES_INTERVAL);
    connect(m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

649 650 651
    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
652 653
    connect(m_updateFunctionDeclDefLinkTimer, SIGNAL(timeout()),
            this, SLOT(updateFunctionDeclDefLinkNow()));
654

Kai Koehne's avatar
Kai Koehne committed
655 656 657
    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
658

659
    // set up slots to document changes
660 661
    connect(document(), SIGNAL(contentsChange(int,int,int)),
            this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
662

663 664 665
    // 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
666 667 668 669 670

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

671 672 673 674 675 676 677
    m_preprocessorButton = new QToolButton(this);
    m_preprocessorButton->setText(QLatin1String("#"));
    Core::Command *cmd = Core::ActionManager::command(Constants::OPEN_PREPROCESSOR_DIALOG);
    connect(cmd, SIGNAL(keySequenceChanged()), this, SLOT(updatePreprocessorButtonTooltip()));
    updatePreprocessorButtonTooltip();
    connect(m_preprocessorButton, SIGNAL(clicked()), this, SLOT(showPreProcessorWidget()));
    editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, m_preprocessorButton);
678
    editor->insertExtraToolBarWidget(TextEditor::BaseTextEditor::Left, m_outlineCombo);
con's avatar
con committed
679 680
}

681
void CPPEditorWidget::paste()
mae's avatar
mae committed
682
{
683
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
684
        BaseTextEditorWidget::paste();
mae's avatar
mae committed
685 686 687 688
        return;
    }

    startRename();
689
    BaseTextEditorWidget::paste();
mae's avatar
mae committed
690 691 692
    finishRename();
}

693
void CPPEditorWidget::cut()
mae's avatar
mae committed
694
{
695
    if (m_currentRenameSelection == NoCurrentRenameSelection) {
696
        BaseTextEditorWidget::cut();
mae's avatar
mae committed
697 698 699 700
        return;
    }

    startRename();
701
    BaseTextEditorWidget::cut();
mae's avatar
mae committed
702 703 704
    finishRename();
}

705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725
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();
}

726
void CPPEditorWidget::setObjCEnabled(bool onoff)
727 728 729 730
{
    m_objcEnabled = onoff;
}

731
bool CPPEditorWidget::isObjCEnabled() const
732 733
{ return m_objcEnabled; }

734
void CPPEditorWidget::startRename()
mae's avatar
mae committed
735 736 737 738
{
    m_inRenameChanged = false;
}

739
void CPPEditorWidget::finishRename()
mae's avatar
mae committed
740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769
{
    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;
}

770
void CPPEditorWidget::abortRename()
771
{
772
    if (m_currentRenameSelection <= NoCurrentRenameSelection)
mae's avatar
mae committed
773
        return;
774 775
    m_renameSelections[m_currentRenameSelection].format
            = baseTextDocument()->fontSettings().toTextCharFormat(TextEditor::C_OCCURRENCES);
776
    m_currentRenameSelection = NoCurrentRenameSelection;
mae's avatar
mae committed
777 778
    m_currentRenameSelectionBegin = QTextCursor();
    m_currentRenameSelectionEnd = QTextCursor();
779
    setExtraSelections(CodeSemanticsSelection, m_renameSelections);
780

781
    semanticRehighlight(/* force = */ true);
782 783
}

784 785 786
/// \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
787
{
788
    m_updateOutlineTimer->start();
con's avatar
con committed
789 790
}

791
const Macro *CPPEditorWidget::findCanonicalMacro(const QTextCursor &cursor, Document::Ptr doc) const
Christian Kamm's avatar
Christian Kamm committed
792
{
793
    if (!doc)
Christian Kamm's avatar
Christian Kamm committed
794 795 796 797 798
        return 0;

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

799 800 801
    if (const Macro *macro = doc->findMacroDefinitionAt(line)) {
        QTextCursor macroCursor = cursor;
        const QByteArray name = identifierUnderCursor(&macroCursor).toLatin1();
802
        if (macro->name() == name)
803 804
            return macro;
    } else if (const Document::MacroUse *use = doc->findMacroUseAt(cursor.position())) {
805
        return &use->macro();
806
    }
Christian Kamm's avatar
Christian Kamm committed
807 808 809

    return 0;
}
810

811
void CPPEditorWidget::findUsages()
812
{
813 814 815
    if (!m_modelManager)
        return;

816
    SemanticInfo info = m_lastSemanticInfo;
817
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
818
    info.snapshot.insert(info.doc);
819

820
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
Christian Kamm's avatar
Christian Kamm committed
821
        m_modelManager->findMacroUsages(*macro);
822 823 824 825 826
    } else {
        CanonicalSymbol cs(this, info);
        Symbol *canonicalSymbol = cs(textCursor());
        if (canonicalSymbol)
            m_modelManager->findUsages(canonicalSymbol, cs.context());
827
    }
828 829
}

830

831
void CPPEditorWidget::renameUsagesNow(const QString &replacement)
832
{
833 834 835
    if (!m_modelManager)
        return;

836
    SemanticInfo info = m_lastSemanticInfo;
837
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
838 839
    info.snapshot.insert(info.doc);

840 841 842 843 844 845 846 847
    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);
    }
848 849
}

850
void CPPEditorWidget::renameUsages()
851
{
852 853 854
    renameUsagesNow();
}

855
void CPPEditorWidget::markSymbolsNow()
856
{
857 858 859 860 861 862
    if (m_references.isCanceled())
        return;
    else if (m_referencesCursorPosition != position())
        return;
    else if (m_referencesRevision != editorRevision())
        return;
863

864 865 866
    const SemanticInfo info = m_lastSemanticInfo;
    TranslationUnit *unit = info.doc->translationUnit();
    const QList<int> result = m_references.result();
867 868 869

    QList<QTextEdit::ExtraSelection> selections;

870 871 872
    foreach (int index, result) {
        unsigned line, column;
        unit->getTokenPosition(index, &line, &column);
873

874 875
        if (column)
            --column;  // adjust the column position.
876

877
        const int len = unit->tokenAt(index).f.length;
878

879 880 881
        QTextCursor cursor(document()->findBlockByNumber(line - 1));
        cursor.setPosition(cursor.position() + column);
        cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
882

883
        QTextEdit::ExtraSelection sel;
884
        sel.format = baseTextDocument()->fontSettings().toTextCharFormat(TextEditor::C_OCCURRENCES);
885 886
        sel.cursor = cursor;
        selections.append(sel);
887

Roberto Raggi's avatar
Roberto Raggi committed
888
    }
889 890

    setExtraSelections(CodeSemanticsSelection, selections);
Roberto Raggi's avatar
Roberto Raggi committed
891 892
}

Nikolai Kosjar's avatar
Nikolai Kosjar committed
893 894
static QList<int> lazyFindReferences(Scope *scope, QString code, Document::Ptr doc,
                                     Snapshot snapshot)
895 896
{
    TypeOfExpression typeOfExpression;
897 898
    snapshot.insert(doc);
    typeOfExpression.init(doc, snapshot);
899 900
    // make possible to instantiate templates
    typeOfExpression.setExpandTemplates(true);
901
    if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression))
Nikolai Kosjar's avatar
Nikolai Kosjar committed
902 903
        return CppModelManagerInterface::instance()->references(canonicalSymbol,
                                                                typeOfExpression.context());
904 905 906
    return QList<int>();
}

907
void CPPEditorWidget::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
908 909 910
{
    abortRename();

911
    if (!info.doc)
912
        return;
913 914
    const QTextCharFormat &occurrencesFormat
            = baseTextDocument()->fontSettings().toTextCharFormat(TextEditor::C_OCCURRENCES);
915 916 917 918 919 920 921
    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
922 923
            cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor,
                                macro->name().length());
924 925

            QTextEdit::ExtraSelection sel;
926
            sel.format = occurrencesFormat;
927 928 929 930 931
            sel.cursor = cursor;
            selections.append(sel);
        }

        //Other macro uses
932
        foreach (const Document::MacroUse &use, info.doc->macroUses()) {
933 934 935 936 937 938 939 940 941 942 943
            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;
944
            sel.format = occurrencesFormat;
945 946 947
            sel.cursor = cursor;
            selections.append(sel);
        }
948

949 950 951 952 953 954 955 956
        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
957 958
            m_references = QtConcurrent::run(&lazyFindReferences, scope, expression, info.doc,
                                             info.snapshot);
959 960 961 962
            m_referencesWatcher.setFuture(m_references);
        } else {
            const QList<QTextEdit::ExtraSelection> selections = extraSelections(CodeSemanticsSelection);

963
            if (!selections.isEmpty())
964 965
                setExtraSelections(CodeSemanticsSelection, QList<QTextEdit::ExtraSelection>());
        }
966 967 968
    }
}

969
void CPPEditorWidget::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
970
{
971 972 973
    if (!m_modelManager)
        return;

974 975
    CppEditorSupport *edSup = m_modelManager->cppEditorSupport(editor());
    updateSemanticInfo(edSup->recalculateSemanticInfo(/* emitSignalWhenFinished = */ false));
mae's avatar
mae committed
976
    abortRename();
977

Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
978 979 980 981 982
    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()
983
                && c.position() <= s.cursor.position()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
984
            m_currentRenameSelection = i;
mae's avatar
mae committed
985 986 987 988
            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
989
                                                      m_renameSelections[i].cursor.selectionEnd());
990 991
            m_renameSelections[i].format
                    = baseTextDocument()->fontSettings().toTextCharFormat(TextEditor::C_OCCURRENCES_RENAME);;
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
992 993 994 995
            setExtraSelections(CodeSemanticsSelection, m_renameSelections);
            break;
        }
    }
996 997

    if (m_renameSelections.isEmpty())
998
        renameUsages();