cppeditor.cpp 39.8 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"
33 34
#include "cppcanonicalsymbol.h"
#include "cppdocumentationcommenthelper.h"
con's avatar
con committed
35
#include "cppeditorconstants.h"
36
#include "cppeditoroutline.h"
37
#include "cppeditorplugin.h"
38
#include "cppfollowsymbolundercursor.h"
con's avatar
con committed
39
#include "cpphighlighter.h"
40
#include "cpplocalrenaming.h"
41
#include "cpppreprocessordialog.h"
Leandro Melo's avatar
Leandro Melo committed
42
#include "cppquickfixassistant.h"
Roberto Raggi's avatar
Roberto Raggi committed
43

44 45
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/actionmanager.h>
46

47
#include <cpptools/cppchecksymbols.h>
Christian Kamm's avatar
Christian Kamm committed
48
#include <cpptools/cppcodeformatter.h>
49
#include <cpptools/cppcompletionassistprovider.h>
50
#include <cpptools/cpphighlightingsupport.h>
Nikolai Kosjar's avatar
Nikolai Kosjar committed
51
#include <cpptools/cppmodelmanagerinterface.h>
52 53 54
#include <cpptools/cppsemanticinfo.h>
#include <cpptools/cpptoolseditorsupport.h>
#include <cpptools/cpptoolsplugin.h>
55
#include <cpptools/cpptoolsreuse.h>
56
#include <cpptools/symbolfinder.h>
57 58 59

#include <projectexplorer/session.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

#include <utils/qtcassert.h>

#include <cplusplus/ASTPath.h>
71
#include <cplusplus/BackwardsScanner.h>
72 73
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/OverviewModel.h>
con's avatar
con committed
74

75
#include <QAction>
76
#include <QFutureWatcher>
77
#include <QMenu>
78 79 80 81
#include <QPointer>
#include <QSignalMapper>
#include <QTextEdit>
#include <QTimer>
82
#include <QToolButton>
con's avatar
con committed
83

Roberto Raggi's avatar
Roberto Raggi committed
84
enum {
85 86
    UPDATE_USES_INTERVAL = 500,
    UPDATE_FUNCTION_DECL_DEF_LINK_INTERVAL = 200
Roberto Raggi's avatar
Roberto Raggi committed
87 88
};

Roberto Raggi's avatar
Roberto Raggi committed
89
using namespace CPlusPlus;
90
using namespace CppTools;
Roberto Raggi's avatar
Roberto Raggi committed
91 92
using namespace CppEditor::Internal;

con's avatar
con committed
93 94
namespace {

95 96 97 98 99 100 101 102
QTimer *newSingleShotTimer(QObject *parent, int msecInterval)
{
    QTimer *timer = new QTimer(parent);
    timer->setSingleShot(true);
    timer->setInterval(msecInterval);
    return timer;
}

con's avatar
con committed
103 104
} // end of anonymous namespace

105 106 107
namespace CppEditor {
namespace Internal {

108
CPPEditor::CPPEditor()
con's avatar
con committed
109
{
110 111 112
    m_context.add(CppEditor::Constants::C_CPPEDITOR);
    m_context.add(ProjectExplorer::Constants::LANG_CXX);
    m_context.add(TextEditor::Constants::C_TEXTEDITOR);
113
    setDuplicateSupported(true);
114
    setCommentStyle(Utils::CommentDefinition::CppStyle);
115 116 117
    setCompletionAssistProvider([this] () -> TextEditor::CompletionAssistProvider * {
        return CppModelManagerInterface::instance()->cppEditorSupport(this)->completionAssistProvider();
    });
118
    setAutoCompleter(new CppAutoCompleter);
con's avatar
con committed
119 120
}

121 122
Q_GLOBAL_STATIC(CppTools::SymbolFinder, symbolFinder)

123
class CppEditorWidgetPrivate
124 125
{
public:
126
    CppEditorWidgetPrivate(CppEditorWidget *q);
127 128

public:
129
    CppEditorWidget *q;
130 131 132 133

    QPointer<CppTools::CppModelManagerInterface> m_modelManager;

    CPPEditorDocument *m_cppEditorDocument;
134 135
    CppEditorOutline *m_cppEditorOutline;

136 137
    CppDocumentationCommentHelper m_cppDocumentationCommentHelper;

138 139 140 141
    QTimer *m_updateUsesTimer;
    QTimer *m_updateFunctionDeclDefLinkTimer;
    QHash<int, QTextCharFormat> m_semanticHighlightFormatMap;

142
    CppLocalRenaming m_localRenaming;
143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160

    CppTools::SemanticInfo m_lastSemanticInfo;
    QList<TextEditor::QuickFixOperation::Ptr> m_quickFixes;

    QScopedPointer<QFutureWatcher<TextEditor::HighlightingResult> > m_highlightWatcher;
    unsigned m_highlightRevision; // the editor revision that requested the highlight

    QScopedPointer<QFutureWatcher<QList<int> > > m_referencesWatcher;
    unsigned m_referencesRevision;
    int m_referencesCursorPosition;

    FunctionDeclDefLinkFinder *m_declDefLinkFinder;
    QSharedPointer<FunctionDeclDefLink> m_declDefLink;

    QScopedPointer<FollowSymbolUnderCursor> m_followSymbolUnderCursor;
    QToolButton *m_preprocessorButton;
};

161
CppEditorWidgetPrivate::CppEditorWidgetPrivate(CppEditorWidget *q)
162 163
    : q(q)
    , m_modelManager(CppModelManagerInterface::instance())
164
    , m_cppEditorDocument(qobject_cast<CPPEditorDocument *>(q->textDocument()))
165
    , m_cppEditorOutline(new CppEditorOutline(q))
166
    , m_cppDocumentationCommentHelper(q)
167
    , m_localRenaming(q)
168 169 170 171 172 173 174 175 176
    , m_highlightRevision(0)
    , m_referencesRevision(0)
    , m_referencesCursorPosition(0)
    , m_declDefLinkFinder(new FunctionDeclDefLinkFinder(q))
    , m_followSymbolUnderCursor(new FollowSymbolUnderCursor(q))
    , m_preprocessorButton(0)
{
}

177 178
CppEditorWidget::CppEditorWidget(TextEditor::BaseTextDocumentPtr doc)
    : TextEditor::BaseTextEditorWidget(0)
179
{
180
    setTextDocument(doc);
181
    d.reset(new CppEditorWidgetPrivate(this));
182

183
    qRegisterMetaType<SemanticInfo>("CppTools::SemanticInfo");
Roberto Raggi's avatar
Roberto Raggi committed
184

con's avatar
con committed
185 186
    setParenthesesMatchingEnabled(true);
    setMarksVisible(true);
187
    setCodeFoldingSupported(true);
188
    setRevisionsVisible(true);
dt's avatar
dt committed
189

190 191
    if (d->m_modelManager) {
        CppEditorSupport *editorSupport = d->m_modelManager->cppEditorSupport(editor());
192 193 194 195
        connect(editorSupport, SIGNAL(documentUpdated()),
                this, SLOT(onDocumentUpdated()));
        connect(editorSupport, SIGNAL(semanticInfoUpdated(CppTools::SemanticInfo)),
                this, SLOT(updateSemanticInfo(CppTools::SemanticInfo)));
Eike Ziller's avatar
Eike Ziller committed
196 197
        connect(editorSupport, SIGNAL(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)),
                this, SLOT(highlighterStarted(QFuture<TextEditor::HighlightingResult>*,uint)));
con's avatar
con committed
198
    }
199

200 201 202
    connect(this, SIGNAL(refactorMarkerClicked(TextEditor::RefactorMarker)),
            this, SLOT(onRefactorMarkerClicked(TextEditor::RefactorMarker)));

203
    connect(d->m_declDefLinkFinder, SIGNAL(foundLink(QSharedPointer<FunctionDeclDefLink>)),
204
            this, SLOT(onFunctionDeclDefLinkFound(QSharedPointer<FunctionDeclDefLink>)));
205

206
    connect(textDocument(), SIGNAL(filePathChanged(QString,QString)),
207
            this, SLOT(onFilePathChanged()));
208 209 210 211 212

    connect(&d->m_localRenaming, SIGNAL(finished()),
            this, SLOT(onLocalRenamingFinished()));
    connect(&d->m_localRenaming, SIGNAL(processKeyPressNormally(QKeyEvent*)),
            this, SLOT(onLocalRenamingProcessKeyPressNormally(QKeyEvent*)));
con's avatar
con committed
213

214
    // Tool bar creation
215
    d->m_updateUsesTimer = newSingleShotTimer(this, UPDATE_USES_INTERVAL);
216 217
    connect(d->m_updateUsesTimer, SIGNAL(timeout()), this, SLOT(updateUsesNow()));

218
    d->m_updateFunctionDeclDefLinkTimer = newSingleShotTimer(this, UPDATE_FUNCTION_DECL_DEF_LINK_INTERVAL);
219
    connect(d->m_updateFunctionDeclDefLinkTimer, SIGNAL(timeout()),
Nikolai Kosjar's avatar
Nikolai Kosjar committed
220
            this, SLOT(updateFunctionDeclDefLinkNow()));
221

222 223
    connect(this, SIGNAL(cursorPositionChanged()),
            d->m_cppEditorOutline, SLOT(updateIndex()));
con's avatar
con committed
224

225
    // set up slots to document changes
226 227
    connect(document(), SIGNAL(contentsChange(int,int,int)),
            this, SLOT(onContentsChanged(int,int,int)));
con's avatar
con committed
228

229 230 231
    // 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
232 233 234 235 236

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

237 238
    d->m_preprocessorButton = new QToolButton(this);
    d->m_preprocessorButton->setText(QLatin1String("#"));
239 240 241
    Core::Command *cmd = Core::ActionManager::command(Constants::OPEN_PREPROCESSOR_DIALOG);
    connect(cmd, SIGNAL(keySequenceChanged()), this, SLOT(updatePreprocessorButtonTooltip()));
    updatePreprocessorButtonTooltip();
242
    connect(d->m_preprocessorButton, SIGNAL(clicked()), this, SLOT(showPreProcessorWidget()));
243 244
    insertExtraToolBarWidget(TextEditor::BaseTextEditorWidget::Left, d->m_preprocessorButton);
    insertExtraToolBarWidget(TextEditor::BaseTextEditorWidget::Left, d->m_cppEditorOutline->widget());
con's avatar
con committed
245 246
}

247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264
CppEditorWidget::~CppEditorWidget()
{
    if (d->m_modelManager)
        d->m_modelManager->deleteCppEditorSupport(editor());
}

CPPEditorDocument *CppEditorWidget::cppEditorDocument() const
{
    return d->m_cppEditorDocument;
}

CppEditorOutline *CppEditorWidget::outline() const
{
    return d->m_cppEditorOutline;
}

TextEditor::BaseTextEditor *CppEditorWidget::createEditor()
{
265
    return new CPPEditor;
266 267
}

268
void CppEditorWidget::paste()
mae's avatar
mae committed
269
{
270
    if (d->m_localRenaming.handlePaste())
mae's avatar
mae committed
271 272
        return;

273
    BaseTextEditorWidget::paste();
mae's avatar
mae committed
274 275
}

276
void CppEditorWidget::cut()
mae's avatar
mae committed
277
{
278
    if (d->m_localRenaming.handlePaste())
mae's avatar
mae committed
279 280
        return;

281
    BaseTextEditorWidget::cut();
mae's avatar
mae committed
282 283
}

284
void CppEditorWidget::selectAll()
285
{
286
    if (d->m_localRenaming.handleSelectAll())
mae's avatar
mae committed
287
        return;
288

289
    BaseTextEditorWidget::selectAll();
290 291
}

292 293
/// \brief Called by \c CppEditorSupport when the document corresponding to the
///        file in this editor is updated.
294
void CppEditorWidget::onDocumentUpdated()
con's avatar
con committed
295
{
296
    d->m_cppEditorOutline->update();
con's avatar
con committed
297 298
}

299
const Macro *CppEditorWidget::findCanonicalMacro(const QTextCursor &cursor, Document::Ptr doc) const
Christian Kamm's avatar
Christian Kamm committed
300
{
301
    if (!doc)
Christian Kamm's avatar
Christian Kamm committed
302 303 304 305 306
        return 0;

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

307 308
    if (const Macro *macro = doc->findMacroDefinitionAt(line)) {
        QTextCursor macroCursor = cursor;
309
        const QByteArray name = identifierUnderCursor(&macroCursor).toUtf8();
310
        if (macro->name() == name)
311 312
            return macro;
    } else if (const Document::MacroUse *use = doc->findMacroUseAt(cursor.position())) {
313
        return &use->macro();
314
    }
Christian Kamm's avatar
Christian Kamm committed
315 316 317

    return 0;
}
318

319
void CppEditorWidget::findUsages()
320
{
321
    if (!d->m_modelManager)
322 323
        return;

324
    SemanticInfo info = d->m_lastSemanticInfo;
325
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
326
    info.snapshot.insert(info.doc);
327

328
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
329
        d->m_modelManager->findMacroUsages(*macro);
330
    } else {
331
        CanonicalSymbol cs(this, info.doc, info.snapshot);
332 333
        Symbol *canonicalSymbol = cs(textCursor());
        if (canonicalSymbol)
334
            d->m_modelManager->findUsages(canonicalSymbol, cs.context());
335
    }
336 337
}

338
void CppEditorWidget::renameUsages(const QString &replacement)
339
{
340
    if (!d->m_modelManager)
341 342
        return;

343
    SemanticInfo info = d->m_lastSemanticInfo;
344
    info.snapshot = CppModelManagerInterface::instance()->snapshot();
345 346
    info.snapshot.insert(info.doc);

347
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
348
        d->m_modelManager->renameMacroUsages(*macro, replacement);
349
    } else {
350
        CanonicalSymbol cs(this, info.doc, info.snapshot);
351 352
        if (Symbol *canonicalSymbol = cs(textCursor()))
            if (canonicalSymbol->identifier() != 0)
353
                d->m_modelManager->renameUsages(canonicalSymbol, cs.context(), replacement);
354
    }
355 356
}

357
void CppEditorWidget::markSymbolsNow()
358
{
359 360 361 362 363
    QTC_ASSERT(d->m_referencesWatcher, return);
    if (!d->m_referencesWatcher->isCanceled()
            && d->m_referencesCursorPosition == position()
            && d->m_referencesRevision == editorRevision()) {
        const SemanticInfo info = d->m_lastSemanticInfo;
Erik Verbruggen's avatar
Erik Verbruggen committed
364
        TranslationUnit *unit = info.doc->translationUnit();
365
        const QList<int> result = d->m_referencesWatcher->result();
366

Erik Verbruggen's avatar
Erik Verbruggen committed
367
        QList<QTextEdit::ExtraSelection> selections;
368

Erik Verbruggen's avatar
Erik Verbruggen committed
369 370 371
        foreach (int index, result) {
            unsigned line, column;
            unit->getTokenPosition(index, &line, &column);
372

Erik Verbruggen's avatar
Erik Verbruggen committed
373 374
            if (column)
                --column;  // adjust the column position.
375

376
            const int len = unit->tokenAt(index).utf16chars();
377

Erik Verbruggen's avatar
Erik Verbruggen committed
378 379 380
            QTextCursor cursor(document()->findBlockByNumber(line - 1));
            cursor.setPosition(cursor.position() + column);
            cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
381

Erik Verbruggen's avatar
Erik Verbruggen committed
382
            QTextEdit::ExtraSelection sel;
383
            sel.format = textCharFormat(TextEditor::C_OCCURRENCES);
Erik Verbruggen's avatar
Erik Verbruggen committed
384 385 386
            sel.cursor = cursor;
            selections.append(sel);
        }
387

Erik Verbruggen's avatar
Erik Verbruggen committed
388
        setExtraSelections(CodeSemanticsSelection, selections);
Roberto Raggi's avatar
Roberto Raggi committed
389
    }
390
    d->m_referencesWatcher.reset();
Roberto Raggi's avatar
Roberto Raggi committed
391 392
}

Nikolai Kosjar's avatar
Nikolai Kosjar committed
393 394
static QList<int> lazyFindReferences(Scope *scope, QString code, Document::Ptr doc,
                                     Snapshot snapshot)
395 396
{
    TypeOfExpression typeOfExpression;
397 398
    snapshot.insert(doc);
    typeOfExpression.init(doc, snapshot);
399 400
    // make possible to instantiate templates
    typeOfExpression.setExpandTemplates(true);
401
    if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression))
Nikolai Kosjar's avatar
Nikolai Kosjar committed
402 403
        return CppModelManagerInterface::instance()->references(canonicalSymbol,
                                                                typeOfExpression.context());
404 405 406
    return QList<int>();
}

407
void CppEditorWidget::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
408
{
409
    d->m_localRenaming.stop();
410

411
    if (!info.doc)
412
        return;
413
    const QTextCharFormat &occurrencesFormat = textCharFormat(TextEditor::C_OCCURRENCES);
414 415 416 417 418 419
    if (const Macro *macro = findCanonicalMacro(textCursor(), info.doc)) {
        QList<QTextEdit::ExtraSelection> selections;

        //Macro definition
        if (macro->fileName() == info.doc->fileName()) {
            QTextCursor cursor(document());
420
            cursor.setPosition(macro->utf16CharOffset());
Nikolai Kosjar's avatar
Nikolai Kosjar committed
421
            cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor,
422
                                macro->nameToQString().size());
423 424

            QTextEdit::ExtraSelection sel;
425
            sel.format = occurrencesFormat;
426 427 428 429 430
            sel.cursor = cursor;
            selections.append(sel);
        }

        //Other macro uses
431
        foreach (const Document::MacroUse &use, info.doc->macroUses()) {
432 433
            const Macro &useMacro = use.macro();
            if (useMacro.line() != macro->line()
434
                    || useMacro.utf16CharOffset() != macro->utf16CharOffset()
435 436
                    || useMacro.length() != macro->length()
                    || useMacro.fileName() != macro->fileName())
437 438 439
                continue;

            QTextCursor cursor(document());
440 441
            cursor.setPosition(use.utf16charsBegin());
            cursor.setPosition(use.utf16charsEnd(), QTextCursor::KeepAnchor);
442 443

            QTextEdit::ExtraSelection sel;
444
            sel.format = occurrencesFormat;
445 446 447
            sel.cursor = cursor;
            selections.append(sel);
        }
448

449 450
        setExtraSelections(CodeSemanticsSelection, selections);
    } else {
451
        CanonicalSymbol cs(this, info.doc, info.snapshot);
452
        QString expression;
453
        if (Scope *scope = cs.getScopeAndExpression(tc, &expression)) {
454 455 456 457 458 459 460 461 462
            if (d->m_referencesWatcher)
                d->m_referencesWatcher->cancel();
            d->m_referencesWatcher.reset(new QFutureWatcher<QList<int> >);
            connect(d->m_referencesWatcher.data(), SIGNAL(finished()), SLOT(markSymbolsNow()));

            d->m_referencesRevision = info.revision;
            d->m_referencesCursorPosition = position();
            d->m_referencesWatcher->setFuture(
                QtConcurrent::run(&lazyFindReferences, scope, expression, info.doc, info.snapshot));
463 464 465
        } else {
            const QList<QTextEdit::ExtraSelection> selections = extraSelections(CodeSemanticsSelection);

466
            if (!selections.isEmpty())
467 468
                setExtraSelections(CodeSemanticsSelection, QList<QTextEdit::ExtraSelection>());
        }
469 470 471
    }
}

472
void CppEditorWidget::renameSymbolUnderCursor()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
473
{
474
    if (!d->m_modelManager)
475 476
        return;

477 478
    CppEditorSupport *ces = d->m_modelManager->cppEditorSupport(editor());
    updateSemanticInfo(ces->recalculateSemanticInfo());
479

480 481
    if (!d->m_localRenaming.start()) // Rename local symbol
        renameUsages(); // Rename non-local symbol or macro
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
482 483
}

484
void CppEditorWidget::onContentsChanged(int position, int charsRemoved, int charsAdded)
485
{
486 487
    Q_UNUSED(position)
    Q_UNUSED(charsAdded)
488 489 490 491 492

    if (charsRemoved > 0)
        updateUses();
}

493
void CppEditorWidget::updatePreprocessorButtonTooltip()
494
{
495
    QTC_ASSERT(d->m_preprocessorButton, return);
496 497
    Core::Command *cmd = Core::ActionManager::command(Constants::OPEN_PREPROCESSOR_DIALOG);
    QTC_ASSERT(cmd, return);
498
    d->m_preprocessorButton->setToolTip(cmd->action()->toolTip());
499 500
}

501
QList<QTextEdit::ExtraSelection> CppEditorWidget::createSelectionsFromUses(
502
        const QList<SemanticInfo::Use> &uses)
Roberto Raggi's avatar
Roberto Raggi committed
503
{
504 505
    QList<QTextEdit::ExtraSelection> result;
    const bool isUnused = uses.size() == 1;
Roberto Raggi's avatar
Roberto Raggi committed
506

Roberto Raggi's avatar
Roberto Raggi committed
507
    foreach (const SemanticInfo::Use &use, uses) {
508 509
        if (use.isInvalid())
            continue;
Roberto Raggi's avatar
Roberto Raggi committed
510

511
        QTextEdit::ExtraSelection sel;
Roberto Raggi's avatar
Roberto Raggi committed
512
        if (isUnused)
513
            sel.format = textCharFormat(TextEditor::C_OCCURRENCES_UNUSED);
Roberto Raggi's avatar
Roberto Raggi committed
514
        else
515
            sel.format = textCharFormat(TextEditor::C_OCCURRENCES);
Roberto Raggi's avatar
Roberto Raggi committed
516

517 518
        const int position = document()->findBlockByNumber(use.line - 1).position() + use.column - 1;
        const int anchor = position + use.length;
Roberto Raggi's avatar
Roberto Raggi committed
519

520
        sel.cursor = QTextCursor(document());
Roberto Raggi's avatar
Roberto Raggi committed
521 522
        sel.cursor.setPosition(anchor);
        sel.cursor.setPosition(position, QTextCursor::KeepAnchor);
Roberto Raggi's avatar
Roberto Raggi committed
523

524
        result.append(sel);
Roberto Raggi's avatar
Roberto Raggi committed
525
    }
526 527

    return result;
Roberto Raggi's avatar
Roberto Raggi committed
528 529
}

530
void CppEditorWidget::updateUses()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
531
{
532
    // Block premature semantic info calculation when editor is created.
533 534
    if (d->m_modelManager && d->m_modelManager->cppEditorSupport(editor())->initialized())
        d->m_updateUsesTimer->start();
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
535 536
}

537
void CppEditorWidget::updateUsesNow()
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
538
{
539
    if (d->m_localRenaming.isActive())
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
540 541
        return;

Roberto Raggi's avatar
Roberto Raggi committed
542
    semanticRehighlight();
con's avatar
con committed
543 544
}

545
void CppEditorWidget::highlightSymbolUsages(int from, int to)
546
{
547
    if (editorRevision() != d->m_highlightRevision)
548 549
        return; // outdated

550
    else if (!d->m_highlightWatcher || d->m_highlightWatcher->isCanceled())
551 552
        return; // aborted

553
    TextEditor::SyntaxHighlighter *highlighter = textDocument()->syntaxHighlighter();
554
    QTC_ASSERT(highlighter, return);
555

556
    TextEditor::SemanticHighlighter::incrementalApplyExtraAdditionalFormats(
557
                highlighter, d->m_highlightWatcher->future(), from, to, d->m_semanticHighlightFormatMap);
558 559
}

560
void CppEditorWidget::finishHighlightSymbolUsages()
561
{
562 563 564 565
    QTC_ASSERT(d->m_highlightWatcher, return);
    if (!d->m_highlightWatcher->isCanceled()
            && editorRevision() == d->m_highlightRevision
            && !d->m_lastSemanticInfo.doc.isNull()) {
566
        TextEditor::SyntaxHighlighter *highlighter = textDocument()->syntaxHighlighter();
Erik Verbruggen's avatar
Erik Verbruggen committed
567 568 569
        QTC_CHECK(highlighter);
        if (highlighter)
            TextEditor::SemanticHighlighter::clearExtraAdditionalFormatsUntilEnd(highlighter,
570
                d->m_highlightWatcher->future());
Erik Verbruggen's avatar
Erik Verbruggen committed
571
    }
572
    d->m_highlightWatcher.reset();
573 574
}

575
void CppEditorWidget::switchDeclarationDefinition(bool inNextSplit)
con's avatar
con committed
576
{
577
    if (!d->m_modelManager)
con's avatar
con committed
578 579
        return;

580
    if (!d->m_lastSemanticInfo.doc)
581
        return;
con's avatar
con committed
582

583 584 585 586
    // Find function declaration or definition under cursor
    Function *functionDefinitionSymbol = 0;
    Symbol *functionDeclarationSymbol = 0;

587
    ASTPath astPathFinder(d->m_lastSemanticInfo.doc);
588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605
    const QList<AST *> astPath = astPathFinder(textCursor());

    for (int i = 0, size = astPath.size(); i < size; ++i) {
        AST *ast = astPath.at(i);
        if (FunctionDefinitionAST *functionDefinitionAST = ast->asFunctionDefinition()) {
            if ((functionDefinitionSymbol = functionDefinitionAST->symbol))
                break; // Function definition found!
        } else if (SimpleDeclarationAST *simpleDeclaration = ast->asSimpleDeclaration()) {
            if (List<Symbol *> *symbols = simpleDeclaration->symbols) {
                if (Symbol *symbol = symbols->value) {
                    if (symbol->isDeclaration() && symbol->type()->isFunctionType()) {
                        functionDeclarationSymbol = symbol;
                        break; // Function declaration found!
                    }
                }
            }
        }
    }
con's avatar
con committed
606

607
    // Link to function definition/declaration
608
    CppEditorWidget::Link symbolLink;
609 610
    if (functionDeclarationSymbol) {
        symbolLink = linkToSymbol(symbolFinder()
611
            ->findMatchingDefinition(functionDeclarationSymbol, d->m_modelManager->snapshot()));
612
    } else if (functionDefinitionSymbol) {
613 614
        const Snapshot snapshot = d->m_modelManager->snapshot();
        LookupContext context(d->m_lastSemanticInfo.doc, snapshot);
615 616 617 618 619 620 621 622
        ClassOrNamespace *binding = context.lookupType(functionDefinitionSymbol);
        const QList<LookupItem> declarations = context.lookup(functionDefinitionSymbol->name(),
            functionDefinitionSymbol->enclosingScope());

        QList<Symbol *> best;
        foreach (const LookupItem &r, declarations) {
            if (Symbol *decl = r.declaration()) {
                if (Function *funTy = decl->type()->asFunctionType()) {
623
                    if (funTy->match(functionDefinitionSymbol)) {
624 625 626 627
                        if (decl != functionDefinitionSymbol && binding == r.binding())
                            best.prepend(decl);
                        else
                            best.append(decl);
628 629
                    }
                }
630 631
            }
        }
632

633 634 635
        if (best.isEmpty())
            return;
        symbolLink = linkToSymbol(best.first());
con's avatar
con committed
636
    }
637 638 639 640

    // Open Editor at link position
    if (symbolLink.hasValidTarget())
        openCppEditorAt(symbolLink, inNextSplit != alwaysOpenLinksInNextSplit());
con's avatar
con committed
641 642
}

643
QString CppEditorWidget::identifierUnderCursor(QTextCursor *macroCursor)
644 645 646 647 648 649
{
    macroCursor->movePosition(QTextCursor::StartOfWord);
    macroCursor->movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);
    return macroCursor->selectedText();
}

650
CppEditorWidget::Link CppEditorWidget::findLinkAt(const QTextCursor &cursor, bool resolveTarget,
651
                                                  bool inNextSplit)
con's avatar
con committed
652
{
653
    if (!d->m_modelManager)
654
        return Link();
655

656 657 658 659 660
    return d->m_followSymbolUnderCursor->findLink(cursor, resolveTarget,
                                                  d->m_modelManager->snapshot(),
                                                  d->m_lastSemanticInfo.doc,
                                                  symbolFinder(),
                                                  inNextSplit);
con's avatar
con committed
661 662
}

663
unsigned CppEditorWidget::editorRevision() const
664 665 666 667
{
    return document()->revision();
}

668
bool CppEditorWidget::isOutdated() const
669
{
670
    if (d->m_lastSemanticInfo.revision != editorRevision())
671 672 673 674 675
        return true;

    return false;
}

676
SemanticInfo CppEditorWidget::semanticInfo() const
Roberto Raggi's avatar
Roberto Raggi committed
677
{
678
    return d->m_lastSemanticInfo;
Roberto Raggi's avatar
Roberto Raggi committed
679 680
}

681
bool CppEditorWidget::event(QEvent *e)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
682 683 684
{
    switch (e->type()) {
    case QEvent::ShortcutOverride:
685
        // handle escape manually if a rename is active
686
        if (static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape && d->m_localRenaming.isActive()) {
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
687 688 689 690 691 692 693 694
            e->accept();
            return true;
        }
        break;
    default:
        break;
    }

695
    return BaseTextEditorWidget::event(e);
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
696 697
}

698
void CppEditorWidget::performQuickFix(int index)
699
{
700
    TextEditor::QuickFixOperation::Ptr op = d->m_quickFixes.at(index);
701
    op->perform();
702 703
}

704
void CppEditorWidget::contextMenuEvent(QContextMenuEvent *e)
con's avatar
con committed
705
{
Roberto Raggi's avatar
Roberto Raggi committed
706 707 708
    // ### enable
    // updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));

709
    QPointer<QMenu> menu(new QMenu(this));
con's avatar
con committed
710

Eike Ziller's avatar
Eike Ziller committed
711
    Core::ActionContainer *mcontext = Core::ActionManager::actionContainer(Constants::M_CONTEXT);
con's avatar
con committed
712 713
    QMenu *contextMenu = mcontext->menu();

714
    QMenu *quickFixMenu = new QMenu(tr("&Refactor"), menu);
Nikolai Kosjar's avatar
Nikolai Kosjar committed
715 716
    quickFixMenu->addAction(Core::ActionManager::command(
                                Constants::RENAME_SYMBOL_UNDER_CURSOR)->action());
717 718 719

    QSignalMapper mapper;
    connect(&mapper, SIGNAL(mapped(int)), this, SLOT(performQuickFix(int)));
720
    if (!isOutdated()) {
Leandro Melo's avatar
Leandro Melo committed
721 722 723 724
        TextEditor::IAssistInterface *interface =
            createAssistInterface(TextEditor::QuickFix, TextEditor::ExplicitlyInvoked);
        if (interface) {
            QScopedPointer<TextEditor::IAssistProcessor> processor(
725
                        CppEditorPlugin::instance()->quickFixProvider()->createProcessor());
Leandro Melo's avatar
Leandro Melo committed
726 727 728 729 730 731 732 733 734
            QScopedPointer<TextEditor::IAssistProposal> proposal(processor->perform(interface));
            if (!proposal.isNull()) {
                TextEditor::BasicProposalItemListModel *model =
                        static_cast<TextEditor::BasicProposalItemListModel *>(proposal->model());
                for (int index = 0; index < model->size(); ++index) {
                    TextEditor::BasicProposalItem *item =
                            static_cast<TextEditor::BasicProposalItem *>(model->proposalItem(index));
                    TextEditor::QuickFixOperation::Ptr op =
                            item->data().value<TextEditor::QuickFixOperation::Ptr>();
735
                    d->m_quickFixes.append(op);
Leandro Melo's avatar
Leandro Melo committed
736 737 738 739 740
                    QAction *action = quickFixMenu->addAction(op->description());
                    mapper.setMapping(action, index);
                    connect(action, SIGNAL(triggered()), &mapper, SLOT(map()));
                }
                delete model;
741 742 743 744
            }
        }
    }

745
    foreach (QAction *action, contextMenu->actions()) {
con's avatar
con committed
746
        menu->addAction(action);
747
        if (action->objectName() == QLatin1String(Constants::M_REFACTORING_MENU_INSERTION_POINT))
748 749
            menu->addMenu(quickFixMenu);
    }
con's avatar
con committed
750

751 752
    appendStandardContextMenuActions(menu);

con's avatar
con committed
753
    menu->exec(e->globalPos());
754 755
    if (!menu)
        return;
756
    d->m_quickFixes.clear();
con's avatar
con committed
757 758 759
    delete menu;
}

760
void CppEditorWidget::keyPressEvent(QKeyEvent *e)
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
761
{
762
    if (d->m_localRenaming.handleKeyPressEvent(e))
763 764
        return;

765 766 767 768
    if (d->m_cppDocumentationCommentHelper.handleKeyPressEvent(e))
        return;

    TextEditor::BaseTextEditorWidget::keyPressEvent(e);
Thorbjørn Lindeijer's avatar
Thorbjørn Lindeijer committed
769 770
}

771
Core::IEditor *CPPEditor::duplicate()
con's avatar
con committed
772
{
773
    CppEditorWidget *newEditor = new CppEditorWidget(editorWidget()->textDocumentPtr());
774
    CppEditorPlugin::instance()->initializeEditor(newEditor);
775
    return newEditor->editor();
con's avatar
con committed
776 777
}

778
bool CPPEditor::open(QString *errorString, const QString &fileName, const QString &realFileName)
dt's avatar
dt committed
779
{
780 781
    if (!TextEditor::BaseTextEditor::open(errorString, fileName, realFileName))
        return false;
782
    textDocument()->setMimeType(Core::MimeDatabase::findByFile(QFileInfo(fileName)).type());
783
    return true;
dt's avatar
dt committed
784 785
}

786
void CppEditorWidget::applyFontSettings()
con's avatar
con committed
787
{
788
    const TextEditor::FontSettings &fs = textDocument()->fontSettings();
Erik Verbruggen's avatar
Erik Verbruggen committed
789

790
    d->m_semanticHighlightFormatMap[CppHighlightingSupport::TypeUse] =
791
            fs.toTextCharFormat(TextEditor::C_TYPE);
792
    d->m_semanticHighlightFormatMap[CppHighlightingSupport::LocalUse] =