basetexteditor.cpp 195 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2 3 4
**
** This file is part of Qt Creator
**
hjk's avatar
hjk committed
5
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
con's avatar
con committed
6
**
7
** Contact: Nokia Corporation (qt-info@nokia.com)
con's avatar
con committed
8
**
9
** Commercial Usage
10
**
11 12 13 14
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
15
**
16
** GNU Lesser General Public License Usage
17
**
18 19 20 21 22 23
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24
**
25
** If you are unsure which license is appropriate for your use, please
hjk's avatar
hjk committed
26
** contact the sales department at http://qt.nokia.com/contact.
con's avatar
con committed
27
**
28
**************************************************************************/
hjk's avatar
hjk committed
29

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

con's avatar
con committed
32
#include "basetextdocument.h"
33
#include "basetextdocumentlayout.h"
con's avatar
con committed
34
#include "basetexteditor_p.h"
35
#include "behaviorsettings.h"
con's avatar
con committed
36
#include "codecselector.h"
37
#include "completionsettings.h"
38
#include "completionsupport.h"
39
#include "tabsettings.h"
40 41
#include "texteditorconstants.h"
#include "texteditorplugin.h"
42
#include "syntaxhighlighter.h"
43 44
#include "tooltip.h"
#include "tipcontents.h"
45
#include "indenter.h"
con's avatar
con committed
46

47
#include <aggregation/aggregate.h>
48
#include <coreplugin/actionmanager/actionmanager.h>
49 50
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/command.h>
con's avatar
con committed
51 52
#include <coreplugin/coreconstants.h>
#include <coreplugin/editormanager/editormanager.h>
53
#include <coreplugin/icore.h>
54
#include <coreplugin/manhattanstyle.h>
55
#include <coreplugin/uniqueidmanager.h>
56
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
57 58
#include <find/basetextfind.h>
#include <utils/linecolumnlabel.h>
hjk's avatar
hjk committed
59
#include <utils/qtcassert.h>
60
#include <utils/stylehelper.h>
con's avatar
con committed
61 62 63 64 65 66

#include <QtCore/QCoreApplication>
#include <QtCore/QTextCodec>
#include <QtCore/QFile>
#include <QtCore/QDebug>
#include <QtCore/QTimer>
67
#include <QtCore/QTimeLine>
68
#include <QtCore/QTime>
con's avatar
con committed
69 70 71 72 73 74 75 76 77 78 79 80 81
#include <QtGui/QAbstractTextDocumentLayout>
#include <QtGui/QApplication>
#include <QtGui/QKeyEvent>
#include <QtGui/QLabel>
#include <QtGui/QLayout>
#include <QtGui/QPainter>
#include <QtGui/QPrinter>
#include <QtGui/QPrintDialog>
#include <QtGui/QScrollBar>
#include <QtGui/QShortcut>
#include <QtGui/QStyle>
#include <QtGui/QSyntaxHighlighter>
#include <QtGui/QTextCursor>
82
#include <QtGui/QTextDocumentFragment>
con's avatar
con committed
83 84 85 86
#include <QtGui/QTextBlock>
#include <QtGui/QTextLayout>
#include <QtGui/QToolBar>
#include <QtGui/QInputDialog>
87
#include <QtGui/QMenu>
con's avatar
con committed
88

89 90
//#define DO_FOO

con's avatar
con committed
91 92 93 94
using namespace TextEditor;
using namespace TextEditor::Internal;

namespace TextEditor {
95
namespace Internal {
con's avatar
con committed
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130

class TextEditExtraArea : public QWidget {
    BaseTextEditor *textEdit;
public:
    TextEditExtraArea(BaseTextEditor *edit):QWidget(edit) {
        textEdit = edit;
        setAutoFillBackground(true);
    }
public:

    QSize sizeHint() const {
        return QSize(textEdit->extraAreaWidth(), 0);
    }
protected:
    void paintEvent(QPaintEvent *event){
        textEdit->extraAreaPaintEvent(event);
    }
    void mousePressEvent(QMouseEvent *event){
        textEdit->extraAreaMouseEvent(event);
    }
    void mouseMoveEvent(QMouseEvent *event){
        textEdit->extraAreaMouseEvent(event);
    }
    void mouseReleaseEvent(QMouseEvent *event){
        textEdit->extraAreaMouseEvent(event);
    }
    void leaveEvent(QEvent *event){
        textEdit->extraAreaLeaveEvent(event);
    }

    void wheelEvent(QWheelEvent *event) {
        QCoreApplication::sendEvent(textEdit->viewport(), event);
    }
};

131 132
} // namespace Internal
} // namespace TextEditor
con's avatar
con committed
133

134 135 136 137
ITextEditor *BaseTextEditor::openEditorAt(const QString &fileName, int line, int column,
                                 const QString &editorKind,
                                 Core::EditorManager::OpenEditorFlags flags,
                                 bool *newEditor)
con's avatar
con committed
138
{
139
    Core::EditorManager *editorManager = Core::EditorManager::instance();
140
    editorManager->cutForwardNavigationHistory();
141
    editorManager->addCurrentPositionToNavigationHistory();
142
    Core::IEditor *editor = editorManager->openEditor(fileName, editorKind,
143
            flags, newEditor);
con's avatar
con committed
144 145 146 147 148
    TextEditor::ITextEditor *texteditor = qobject_cast<TextEditor::ITextEditor *>(editor);
    if (texteditor) {
        texteditor->gotoLine(line, column);
        return texteditor;
    }
149

con's avatar
con committed
150 151 152
    return 0;
}

153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
static void convertToPlainText(QString &txt)
{
    QChar *uc = txt.data();
    QChar *e = uc + txt.size();

    for (; uc != e; ++uc) {
        switch (uc->unicode()) {
        case 0xfdd0: // QTextBeginningOfFrame
        case 0xfdd1: // QTextEndOfFrame
        case QChar::ParagraphSeparator:
        case QChar::LineSeparator:
            *uc = QLatin1Char('\n');
            break;
        case QChar::Nbsp:
            *uc = QLatin1Char(' ');
            break;
        default:
            ;
        }
    }
}

con's avatar
con committed
175 176 177
BaseTextEditor::BaseTextEditor(QWidget *parent)
    : QPlainTextEdit(parent)
{
178
    d = new BaseTextEditorPrivate;
con's avatar
con committed
179 180 181 182 183
    d->q = this;
    d->m_extraArea = new TextEditExtraArea(this);
    d->m_extraArea->setMouseTracking(true);
    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);

184
    d->m_overlay = new TextEditorOverlay(this);
185
    d->m_snippetOverlay = new TextEditorOverlay(this);
186
    d->m_searchResultOverlay = new TextEditorOverlay(this);
187
    d->m_refactorOverlay = new RefactorOverlay(this);
188

con's avatar
con committed
189 190 191 192 193 194 195 196 197 198
    d->setupDocumentSignals(d->m_document);

    d->m_lastScrollPos = -1;

    // from RESEARCH

    setLayoutDirection(Qt::LeftToRight);
    viewport()->setMouseTracking(true);
    d->extraAreaSelectionAnchorBlockNumber
        = d->extraAreaToggleMarkBlockNumber
mae's avatar
mae committed
199
        = d->extraAreaHighlightFoldedBlockNumber
con's avatar
con committed
200 201
        = -1;

mae's avatar
mae committed
202
    d->visibleFoldedBlockNumber = d->suggestedVisibleFoldedBlockNumber = -1;
con's avatar
con committed
203 204 205 206 207 208 209 210 211 212 213

    connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(slotUpdateExtraAreaWidth()));
    connect(this, SIGNAL(modificationChanged(bool)), this, SLOT(slotModificationChanged(bool)));
    connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(slotCursorPositionChanged()));
    connect(this, SIGNAL(updateRequest(QRect, int)), this, SLOT(slotUpdateRequest(QRect, int)));
    connect(this, SIGNAL(selectionChanged()), this, SLOT(slotSelectionChanged()));

//     (void) new QShortcut(tr("CTRL+L"), this, SLOT(centerCursor()), 0, Qt::WidgetShortcut);
//     (void) new QShortcut(tr("F9"), this, SLOT(slotToggleMark()), 0, Qt::WidgetShortcut);
//     (void) new QShortcut(tr("F11"), this, SLOT(slotToggleBlockVisible()));

214 215 216 217
#ifdef DO_FOO
    (void) new QShortcut(tr("CTRL+D"), this, SLOT(doFoo()));
#endif

con's avatar
con committed
218 219 220 221 222 223 224 225 226 227

    // parentheses matcher
    d->m_formatRange = true;
    d->m_matchFormat.setForeground(Qt::red);
    d->m_rangeFormat.setBackground(QColor(0xb4, 0xee, 0xb4));
    d->m_mismatchFormat.setBackground(Qt::magenta);
    d->m_parenthesesMatchingTimer = new QTimer(this);
    d->m_parenthesesMatchingTimer->setSingleShot(true);
    connect(d->m_parenthesesMatchingTimer, SIGNAL(timeout()), this, SLOT(_q_matchParentheses()));

228 229 230 231
    d->m_highlightBlocksTimer = new QTimer(this);
    d->m_highlightBlocksTimer->setSingleShot(true);
    connect(d->m_highlightBlocksTimer, SIGNAL(timeout()), this, SLOT(_q_highlightBlocks()));

232 233 234 235 236
    d->m_requestAutoCompletionTimer = new QTimer(this);
    d->m_requestAutoCompletionTimer->setSingleShot(true);
    d->m_requestAutoCompletionTimer->setInterval(500);
    connect(d->m_requestAutoCompletionTimer, SIGNAL(timeout()), this, SLOT(_q_requestAutoCompletion()));

237
    d->m_animator = 0;
con's avatar
con committed
238 239 240 241

    d->m_searchResultFormat.setBackground(QColor(0xffef0b));

    slotUpdateExtraAreaWidth();
con's avatar
con committed
242
    updateHighlights();
con's avatar
con committed
243 244
    setFrameStyle(QFrame::NoFrame);

245 246 247 248
    d->m_delayedUpdateTimer = new QTimer(this);
    d->m_delayedUpdateTimer->setSingleShot(true);
    connect(d->m_delayedUpdateTimer, SIGNAL(timeout()), viewport(), SLOT(update()));

con's avatar
con committed
249 250
    connect(Core::EditorManager::instance(), SIGNAL(currentEditorChanged(Core::IEditor*)),
            this, SLOT(currentEditorChanged(Core::IEditor*)));
mae's avatar
mae committed
251 252

    d->m_moveLineUndoHack = false;
con's avatar
con committed
253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283
}

BaseTextEditor::~BaseTextEditor()
{
    delete d;
    d = 0;
}

QString BaseTextEditor::mimeType() const
{
    return d->m_document->mimeType();
}

void BaseTextEditor::setMimeType(const QString &mt)
{
    d->m_document->setMimeType(mt);
}

void BaseTextEditor::print(QPrinter *printer)
{
    const bool oldFullPage =  printer->fullPage();
    printer->setFullPage(true);
    QPrintDialog *dlg = new QPrintDialog(printer, this);
    dlg->setWindowTitle(tr("Print Document"));
    if (dlg->exec() == QDialog::Accepted) {
        d->print(printer);
    }
    printer->setFullPage(oldFullPage);
    delete dlg;
}

mae's avatar
mae committed
284
static int foldBoxWidth(const QFontMetrics &fm)
285 286 287 288 289
{
    const int lineSpacing = fm.lineSpacing();
    return lineSpacing + lineSpacing%2 + 1;
}

con's avatar
con committed
290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462
static void printPage(int index, QPainter *painter, const QTextDocument *doc,
                      const QRectF &body, const QRectF &titleBox,
                      const QString &title)
{
    painter->save();

    painter->translate(body.left(), body.top() - (index - 1) * body.height());
    QRectF view(0, (index - 1) * body.height(), body.width(), body.height());

    QAbstractTextDocumentLayout *layout = doc->documentLayout();
    QAbstractTextDocumentLayout::PaintContext ctx;

    painter->setFont(QFont(doc->defaultFont()));
    QRectF box = titleBox.translated(0, view.top());
    int dpix = painter->device()->logicalDpiX();
    int dpiy = painter->device()->logicalDpiY();
    int mx = 5 * dpix / 72.0;
    int my = 2 * dpiy / 72.0;
    painter->fillRect(box.adjusted(-mx, -my, mx, my), QColor(210, 210, 210));
    if (!title.isEmpty())
        painter->drawText(box, Qt::AlignCenter, title);
    const QString pageString = QString::number(index);
    painter->drawText(box, Qt::AlignRight, pageString);

    painter->setClipRect(view);
    ctx.clip = view;
    // don't use the system palette text as default text color, on HP/UX
    // for example that's white, and white text on white paper doesn't
    // look that nice
    ctx.palette.setColor(QPalette::Text, Qt::black);

    layout->draw(painter, ctx);

    painter->restore();
}

void BaseTextEditorPrivate::print(QPrinter *printer)
{
    QTextDocument *doc = q->document();

    QString title = q->displayName();
    if (title.isEmpty())
        printer->setDocName(title);


    QPainter p(printer);

    // Check that there is a valid device to print to.
    if (!p.isActive())
        return;

    doc = doc->clone(doc);

    QTextOption opt = doc->defaultTextOption();
    opt.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
    doc->setDefaultTextOption(opt);

    (void)doc->documentLayout(); // make sure that there is a layout


    QColor background = q->palette().color(QPalette::Base);
    bool backgroundIsDark = background.value() < 128;

    for (QTextBlock srcBlock = q->document()->firstBlock(), dstBlock = doc->firstBlock();
         srcBlock.isValid() && dstBlock.isValid();
         srcBlock = srcBlock.next(), dstBlock = dstBlock.next()) {


        QList<QTextLayout::FormatRange> formatList = srcBlock.layout()->additionalFormats();
        if (backgroundIsDark) {
            // adjust syntax highlighting colors for better contrast
            for (int i = formatList.count() - 1; i >=0; --i) {
                QTextCharFormat &format = formatList[i].format;
                if (format.background().color() == background) {
                    QBrush brush = format.foreground();
                    QColor color = brush.color();
                    int h,s,v,a;
                    color.getHsv(&h, &s, &v, &a);
                    color.setHsv(h, s, qMin(128, v), a);
                    brush.setColor(color);
                    format.setForeground(brush);
                }
                format.setBackground(Qt::white);
            }
        }

        dstBlock.layout()->setAdditionalFormats(formatList);
    }

    QAbstractTextDocumentLayout *layout = doc->documentLayout();
    layout->setPaintDevice(p.device());

    int dpiy = p.device()->logicalDpiY();
    int margin = (int) ((2/2.54)*dpiy); // 2 cm margins

    QTextFrameFormat fmt = doc->rootFrame()->frameFormat();
    fmt.setMargin(margin);
    doc->rootFrame()->setFrameFormat(fmt);

    QRectF pageRect(printer->pageRect());
    QRectF body = QRectF(0, 0, pageRect.width(), pageRect.height());
    QFontMetrics fontMetrics(doc->defaultFont(), p.device());

    QRectF titleBox(margin,
                    body.top() + margin
                    - fontMetrics.height()
                    - 6 * dpiy / 72.0,
                    body.width() - 2*margin,
                    fontMetrics.height());
    doc->setPageSize(body.size());

    int docCopies;
    int pageCopies;
    if (printer->collateCopies() == true){
        docCopies = 1;
        pageCopies = printer->numCopies();
    } else {
        docCopies = printer->numCopies();
        pageCopies = 1;
    }

    int fromPage = printer->fromPage();
    int toPage = printer->toPage();
    bool ascending = true;

    if (fromPage == 0 && toPage == 0) {
        fromPage = 1;
        toPage = doc->pageCount();
    }
    // paranoia check
    fromPage = qMax(1, fromPage);
    toPage = qMin(doc->pageCount(), toPage);

    if (printer->pageOrder() == QPrinter::LastPageFirst) {
        int tmp = fromPage;
        fromPage = toPage;
        toPage = tmp;
        ascending = false;
    }

    for (int i = 0; i < docCopies; ++i) {

        int page = fromPage;
        while (true) {
            for (int j = 0; j < pageCopies; ++j) {
                if (printer->printerState() == QPrinter::Aborted
                    || printer->printerState() == QPrinter::Error)
                    goto UserCanceled;
                printPage(page, &p, doc, body, titleBox, title);
                if (j < pageCopies - 1)
                    printer->newPage();
            }

            if (page == toPage)
                break;

            if (ascending)
                ++page;
            else
                --page;

            printer->newPage();
        }

        if ( i < docCopies - 1)
            printer->newPage();
    }

UserCanceled:
    delete doc;
}


463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479
int BaseTextEditorPrivate::visualIndent(const QTextBlock &block) const
{
    if (!block.isValid())
        return 0;
    const QTextDocument *document = block.document();
    int i = 0;
    while (i < block.length()) {
        if (!document->characterAt(block.position() + i).isSpace()) {
            QTextCursor cursor(block);
            cursor.setPosition(block.position() + i);
            return q->cursorRect(cursor).x();
        }
        ++i;
    }

    return 0;
}
con's avatar
con committed
480 481 482 483 484 485

ITextMarkable *BaseTextEditor::markableInterface() const
{
    return baseTextDocument()->documentMarker();
}

486
BaseTextEditorEditable *BaseTextEditor::editableInterface() const
con's avatar
con committed
487 488 489 490 491 492 493 494 495 496 497 498 499 500
{
    if (!d->m_editable) {
        d->m_editable = const_cast<BaseTextEditor*>(this)->createEditableInterface();
        connect(this, SIGNAL(textChanged()),
                d->m_editable, SIGNAL(contentsChanged()));
        connect(this, SIGNAL(changed()),
                d->m_editable, SIGNAL(changed()));
    }
    return d->m_editable;
}


void BaseTextEditor::currentEditorChanged(Core::IEditor *editor)
{
501
    if (editor == editableInterface()) {
con's avatar
con committed
502 503
        if (d->m_document->hasDecodingError()) {
            Core::EditorManager::instance()->showEditorInfoBar(QLatin1String(Constants::SELECT_ENCODING),
504 505
                tr("<b>Error:</b> Could not decode \"%1\" with \"%2\"-encoding. Editing not possible.")
                    .arg(displayName()).arg(QString::fromLatin1(d->m_document->codec()->name())),
con's avatar
con committed
506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539
                tr("Select Encoding"),
                this, SLOT(selectEncoding()));
        }
    }
}

void BaseTextEditor::selectEncoding()
{
    BaseTextDocument *doc = d->m_document;
    CodecSelector codecSelector(this, doc);

    switch (codecSelector.exec()) {
    case CodecSelector::Reload:
        doc->reload(codecSelector.selectedCodec());
        setReadOnly(d->m_document->hasDecodingError());
        if (doc->hasDecodingError())
            currentEditorChanged(Core::EditorManager::instance()->currentEditor());
        else
            Core::EditorManager::instance()->hideEditorInfoBar(QLatin1String(Constants::SELECT_ENCODING));
        break;
    case CodecSelector::Save:
        doc->setCodec(codecSelector.selectedCodec());
        Core::EditorManager::instance()->saveEditor(editableInterface());
        break;
    case CodecSelector::Cancel:
        break;
    }
}

void BaseTextEditor::triggerCompletions()
{
    emit requestAutoCompletion(editableInterface(), true);
}

Roberto Raggi's avatar
Roberto Raggi committed
540 541 542 543 544
void BaseTextEditor::triggerQuickFix()
{
    emit requestQuickFix(editableInterface());
}

545 546 547 548 549 550
QString BaseTextEditor::msgTextTooLarge(quint64 size)
{
    return tr("The text is too large to be displayed (%1 MB).").
           arg(size >> 20);
}

con's avatar
con committed
551 552
bool BaseTextEditor::createNew(const QString &contents)
{
553 554 555 556 557
    if (contents.size() > Core::EditorManager::maxTextFileSize()) {
        setPlainText(msgTextTooLarge(contents.size()));
        document()->setModified(false);
        return false;
    }
con's avatar
con committed
558 559 560 561 562 563 564 565 566 567 568 569 570 571 572
    setPlainText(contents);
    document()->setModified(false);
    return true;
}

bool BaseTextEditor::open(const QString &fileName)
{
    if (d->m_document->open(fileName)) {
        moveCursor(QTextCursor::Start);
        setReadOnly(d->m_document->hasDecodingError());
        return true;
    }
    return false;
}

573 574 575
/*
  Collapses the first comment in a file, if there is only whitespace above
  */
mae's avatar
mae committed
576
void BaseTextEditorPrivate::foldLicenseHeader()
577 578
{
    QTextDocument *doc = q->document();
579
    BaseTextDocumentLayout *documentLayout = qobject_cast<BaseTextDocumentLayout*>(doc->documentLayout());
580 581 582
    QTC_ASSERT(documentLayout, return);
    QTextBlock block = doc->firstBlock();
    const TabSettings &ts = m_document->tabSettings();
583
    while (block.isValid() && block.isVisible()) {
584
        QString text = block.text();
mae's avatar
mae committed
585 586 587 588 589 590 591 592 593
        if (BaseTextDocumentLayout::canFold(block) && block.next().isVisible()) {
            if (text.trimmed().startsWith(QLatin1String("/*"))) {
                BaseTextDocumentLayout::doFoldOrUnfold(block, false);
                moveCursorVisible();
                documentLayout->requestUpdate();
                documentLayout->emitDocumentSizeChanged();
                break;
            }
        }
594 595 596 597 598 599
        if (ts.firstNonSpace(text) < text.size())
            break;
        block = block.next();
    }
}

600 601 602 603 604 605 606
const Utils::ChangeSet &BaseTextEditor::changeSet() const
{
    return d->m_changeSet;
}

void BaseTextEditor::setChangeSet(const Utils::ChangeSet &changeSet)
{
Roberto Raggi's avatar
Roberto Raggi committed
607 608
    using namespace Utils;

609
    d->m_changeSet = changeSet;
Roberto Raggi's avatar
Roberto Raggi committed
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636

    foreach (const ChangeSet::EditOp &op, changeSet.operationList()) {
        // ### TODO: process the edit operation

        switch (op.type) {
        case ChangeSet::EditOp::Replace:
            break;

        case ChangeSet::EditOp::Move:
            break;

        case ChangeSet::EditOp::Insert:
            break;

        case ChangeSet::EditOp::Remove:
            break;

        case ChangeSet::EditOp::Flip:
            break;

        case ChangeSet::EditOp::Copy:
            break;

        default:
            break;
        } // switch
    }
637 638
}

639
Core::IFile *BaseTextEditor::file()
con's avatar
con committed
640 641 642 643 644 645
{
    return d->m_document;
}

void BaseTextEditor::editorContentsChange(int position, int charsRemoved, int charsAdded)
{
646 647 648
    if (d->m_animator)
        d->m_animator->finish();

con's avatar
con committed
649
    d->m_contentsChanged = true;
650
    QTextDocument *doc = document();
con's avatar
con committed
651 652 653 654 655 656

    // Keep the line numbers and the block information for the text marks updated
    if (charsRemoved != 0) {
        d->updateMarksLineNumber();
        d->updateMarksBlock(document()->findBlock(position));
    } else {
657 658
        const QTextBlock posBlock = doc->findBlock(position);
        const QTextBlock nextBlock = doc->findBlock(position + charsAdded);
con's avatar
con committed
659 660 661 662 663 664 665 666
        if (posBlock != nextBlock) {
            d->updateMarksLineNumber();
            d->updateMarksBlock(posBlock);
            d->updateMarksBlock(nextBlock);
        } else {
            d->updateMarksBlock(posBlock);
        }
    }
667

668 669 670 671 672 673 674 675 676
    if (d->m_snippetOverlay->isVisible()) {
        QTextCursor cursor = textCursor();
        cursor.setPosition(position);
        if (!d->m_snippetOverlay->hasCursorInSelection(cursor)) {
            d->m_snippetOverlay->hide();
            d->m_snippetOverlay->clear();
        }
    }

677
    if (doc->isRedoAvailable())
678
        emit editableInterface()->contentsChangedBecauseOfUndo();
con's avatar
con committed
679 680 681 682
}

void BaseTextEditor::slotSelectionChanged()
{
mae's avatar
mae committed
683 684 685
    if (d->m_inBlockSelectionMode && !textCursor().hasSelection()) {
        d->m_inBlockSelectionMode = false;
        d->m_blockSelection.clear();
con's avatar
con committed
686
        viewport()->update();
mae's avatar
mae committed
687 688
    }

689 690
    if (!d->m_selectBlockAnchor.isNull() && !textCursor().hasSelection())
        d->m_selectBlockAnchor = QTextCursor();
691 692 693

    // Clear any link which might be showing when the selection changes
    clearLink();
con's avatar
con committed
694 695
}

696 697 698
void BaseTextEditor::gotoBlockStart()
{
    QTextCursor cursor = textCursor();
699
    if (TextBlockUserData::findPreviousOpenParenthesis(&cursor, false)) {
700
        setTextCursor(cursor);
701 702
        _q_matchParentheses();
    }
703 704 705 706 707
}

void BaseTextEditor::gotoBlockEnd()
{
    QTextCursor cursor = textCursor();
708
    if (TextBlockUserData::findNextClosingParenthesis(&cursor, false)) {
709
        setTextCursor(cursor);
710 711
        _q_matchParentheses();
    }
712 713 714 715 716
}

void BaseTextEditor::gotoBlockStartWithSelection()
{
    QTextCursor cursor = textCursor();
717
    if (TextBlockUserData::findPreviousOpenParenthesis(&cursor, true)) {
718
        setTextCursor(cursor);
719 720
        _q_matchParentheses();
    }
721 722 723 724 725
}

void BaseTextEditor::gotoBlockEndWithSelection()
{
    QTextCursor cursor = textCursor();
726
    if (TextBlockUserData::findNextClosingParenthesis(&cursor, true)) {
727
        setTextCursor(cursor);
728 729 730 731
        _q_matchParentheses();
    }
}

mae's avatar
mae committed
732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754

void BaseTextEditor::gotoLineStart()
{
    handleHomeKey(false);
}

void BaseTextEditor::gotoLineStartWithSelection()
{
    handleHomeKey(true);
}

void BaseTextEditor::gotoLineEnd()
{
    moveCursor(QTextCursor::EndOfLine);
}

void BaseTextEditor::gotoLineEndWithSelection()
{
    moveCursor(QTextCursor::EndOfLine, QTextCursor::KeepAnchor);
}

void BaseTextEditor::gotoNextLine()
{
755
    moveCursor(QTextCursor::Down);
mae's avatar
mae committed
756 757 758 759
}

void BaseTextEditor::gotoNextLineWithSelection()
{
760
    moveCursor(QTextCursor::Down, QTextCursor::KeepAnchor);
mae's avatar
mae committed
761 762 763 764
}

void BaseTextEditor::gotoPreviousLine()
{
765
    moveCursor(QTextCursor::Up);
mae's avatar
mae committed
766 767 768 769
}

void BaseTextEditor::gotoPreviousLineWithSelection()
{
770
    moveCursor(QTextCursor::Up, QTextCursor::KeepAnchor);
mae's avatar
mae committed
771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814
}

void BaseTextEditor::gotoPreviousCharacter()
{
    moveCursor(QTextCursor::PreviousCharacter);
}

void BaseTextEditor::gotoPreviousCharacterWithSelection()
{
    moveCursor(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
}

void BaseTextEditor::gotoNextCharacter()
{
    moveCursor(QTextCursor::NextCharacter);
}

void BaseTextEditor::gotoNextCharacterWithSelection()
{
    moveCursor(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
}

void BaseTextEditor::gotoPreviousWord()
{
    moveCursor(QTextCursor::PreviousWord);
}

void BaseTextEditor::gotoPreviousWordWithSelection()
{
    moveCursor(QTextCursor::PreviousWord, QTextCursor::KeepAnchor);
}

void BaseTextEditor::gotoNextWord()
{
    moveCursor(QTextCursor::NextWord);
}

void BaseTextEditor::gotoNextWordWithSelection()
{
    moveCursor(QTextCursor::NextWord, QTextCursor::KeepAnchor);
}



815 816
static QTextCursor flippedCursor(const QTextCursor &cursor)
{
817 818 819 820
    QTextCursor flipped = cursor;
    flipped.clearSelection();
    flipped.setPosition(cursor.anchor(), QTextCursor::KeepAnchor);
    return flipped;
821 822
}

823 824 825 826 827 828 829 830 831 832 833 834 835
void BaseTextEditor::selectBlockUp()
{
    QTextCursor cursor = textCursor();
    if (!cursor.hasSelection())
        d->m_selectBlockAnchor = cursor;
    else
        cursor.setPosition(cursor.selectionStart());


    if (!TextBlockUserData::findPreviousOpenParenthesis(&cursor, false))
        return;
    if (!TextBlockUserData::findNextClosingParenthesis(&cursor, true))
        return;
836 837
    setTextCursor(flippedCursor(cursor));
    _q_matchParentheses();
838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859
}

void BaseTextEditor::selectBlockDown()
{
    QTextCursor tc = textCursor();
    QTextCursor cursor = d->m_selectBlockAnchor;

    if (!tc.hasSelection() || cursor.isNull())
        return;
    tc.setPosition(tc.selectionStart());

    forever {
        QTextCursor ahead = cursor;
        if (!TextBlockUserData::findPreviousOpenParenthesis(&ahead, false))
            break;
        if (ahead.position() <= tc.position())
            break;
        cursor = ahead;
    }
    if ( cursor != d->m_selectBlockAnchor)
        TextBlockUserData::findNextClosingParenthesis(&cursor, true);

860 861
    setTextCursor(flippedCursor(cursor));
    _q_matchParentheses();
862 863
}

864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923
void BaseTextEditor::copyLineUp()
{
    copyLineUpDown(true);
}

void BaseTextEditor::copyLineDown()
{
    copyLineUpDown(false);
}

void BaseTextEditor::copyLineUpDown(bool up)
{
    QTextCursor cursor = textCursor();
    QTextCursor move = cursor;
    move.beginEditBlock();

    bool hasSelection = cursor.hasSelection();

    if (hasSelection) {
        move.setPosition(cursor.selectionStart());
        move.movePosition(QTextCursor::StartOfBlock);
        move.setPosition(cursor.selectionEnd(), QTextCursor::KeepAnchor);
        move.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
    } else {
        move.movePosition(QTextCursor::StartOfBlock);
        move.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
    }

    QString text = move.selectedText();

    if (up) {
        move.setPosition(cursor.selectionStart());
        move.movePosition(QTextCursor::StartOfBlock);
        move.insertBlock();
        move.movePosition(QTextCursor::Left);
    } else {
        move.movePosition(QTextCursor::EndOfBlock);
        if (move.atBlockStart()) {
            move.movePosition(QTextCursor::NextBlock);
            move.insertBlock();
            move.movePosition(QTextCursor::Left);
        } else {
            move.insertBlock();
        }
    }

    int start = move.position();
    move.clearSelection();
    move.insertText(text);
    int end = move.position();

    move.setPosition(start);
    move.setPosition(end, QTextCursor::KeepAnchor);

    indent(document(), move, QChar::Null);
    move.endEditBlock();

    setTextCursor(move);
}

924
void BaseTextEditor::joinLines()
925
{
926 927 928
    QTextCursor cursor = textCursor();
    QTextCursor start = cursor;
    QTextCursor end = cursor;
929

930 931
    start.setPosition(cursor.selectionStart());
    end.setPosition(cursor.selectionEnd() - 1);
932

933
    int lineCount = qMax(1, end.blockNumber() - start.blockNumber());
934

935 936 937 938 939 940 941
    cursor.beginEditBlock();
    cursor.setPosition(cursor.selectionStart());
    while (lineCount--) {
        cursor.movePosition(QTextCursor::NextBlock);
        cursor.movePosition(QTextCursor::StartOfBlock);
        cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
        QString cutLine = cursor.selectedText();
942

943 944 945 946 947 948 949 950 951 952 953 954 955
        // Collapse leading whitespaces to one or insert whitespace
        cutLine.replace(QRegExp("^\\s*"), " ");
        cursor.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
        cursor.removeSelectedText();

        cursor.movePosition(QTextCursor::PreviousBlock);
        cursor.movePosition(QTextCursor::EndOfBlock);

        cursor.insertText(cutLine);
    }
    cursor.endEditBlock();

    setTextCursor(cursor);
956 957
}

958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980
void BaseTextEditor::insertLineAbove()
{
    QTextCursor cursor = textCursor();
    cursor.beginEditBlock();
    cursor.movePosition(QTextCursor::PreviousBlock, QTextCursor::MoveAnchor);
    cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::MoveAnchor);
    cursor.insertBlock();
    indent(document(), cursor, QChar::Null);
    cursor.endEditBlock();
    setTextCursor(cursor);
}

void BaseTextEditor::insertLineBelow()
{
    QTextCursor cursor = textCursor();
    cursor.beginEditBlock();
    cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::MoveAnchor);
    cursor.insertBlock();
    indent(document(), cursor, QChar::Null);
    cursor.endEditBlock();
    setTextCursor(cursor);
}

981 982 983 984 985 986 987 988 989 990 991 992 993 994
void BaseTextEditor::moveLineUp()
{
    moveLineUpDown(true);
}

void BaseTextEditor::moveLineDown()
{
    moveLineUpDown(false);
}

void BaseTextEditor::moveLineUpDown(bool up)
{
    QTextCursor cursor = textCursor();
    QTextCursor move = cursor;
995

mae's avatar
mae committed
996
    move.setVisualNavigation(false); // this opens folded items instead of destroying them
997

998 999 1000 1001
    if (d->m_moveLineUndoHack)
        move.joinPreviousEditBlock();
    else
        move.beginEditBlock();
1002 1003 1004 1005 1006 1007 1008

    bool hasSelection = cursor.hasSelection();

    if (cursor.hasSelection()) {
        move.setPosition(cursor.selectionStart());
        move.movePosition(QTextCursor::StartOfBlock);
        move.setPosition(cursor.selectionEnd(), QTextCursor::KeepAnchor);
1009
        move.movePosition(move.atBlockStart() ? QTextCursor::Left: QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
1010 1011 1012 1013 1014
    } else {
        move.movePosition(QTextCursor::StartOfBlock);
        move.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
    }
    QString text = move.selectedText();
1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031

    RefactorMarkers affectedMarkers;
    RefactorMarkers nonAffectedMarkers;
    QList<int> markerOffsets;

    foreach (const RefactorMarker &marker, d->m_refactorOverlay->markers()) {
        //test if marker is part of the selection to be moved
        if ((move.selectionStart() <= marker.cursor.position()) && (move.selectionEnd() >= marker.cursor.position())) {
            affectedMarkers.append(marker);
            //remember the offset of markers in text
            int offset = marker.cursor.position() - move.selectionStart();
            markerOffsets.append(offset);
        } else {
            nonAffectedMarkers.append(marker);
        }
    }

1032 1033
    move.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
    move.removeSelectedText();
1034

1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048
    if (up) {
        move.movePosition(QTextCursor::PreviousBlock);
        move.insertBlock();
        move.movePosition(QTextCursor::Left);
    } else {
        move.movePosition(QTextCursor::EndOfBlock);
        if (move.atBlockStart()) { // empty block
            move.movePosition(QTextCursor::NextBlock);
            move.insertBlock();
            move.movePosition(QTextCursor::Left);
        } else {
            move.insertBlock();
        }
    }
1049

1050 1051 1052 1053
    int start = move.position();
    move.clearSelection();
    move.insertText(text);
    int end = move.position();
1054

1055 1056 1057 1058 1059
    if (hasSelection) {
        move.setPosition(start);
        move.setPosition(end, QTextCursor::KeepAnchor);
    }

1060 1061 1062 1063 1064 1065 1066
    //update positions of affectedMarkers
    for (int i=0;i < affectedMarkers.count(); i++) {
        int newPosition = start + markerOffsets.at(i);
        affectedMarkers[i].cursor.setPosition(newPosition);
    }
    d->m_refactorOverlay->setMarkers(nonAffectedMarkers + affectedMarkers);

mae's avatar
mae committed
1067
    reindent(document(), move);
1068 1069
    move.endEditBlock();

1070
    setTextCursor(move);
1071
    d->m_moveLineUndoHack = true;
1072
}
1073

1074 1075
void BaseTextEditor::cleanWhitespace()
{
1076
    d->m_document->cleanWhitespace(textCursor());
1077
}
1078

con's avatar
con committed
1079 1080
void BaseTextEditor::keyPressEvent(QKeyEvent *e)
{
1081
    viewport()->setCursor(Qt::BlankCursor);
1082
    ToolTip::instance()->hide();
1083

1084
    d->m_moveLineUndoHack = false;
mae's avatar
mae committed
1085
    d->clearVisibleFoldedBlock();
con's avatar
con committed
1086 1087

    if (e->key() == Qt::Key_Escape) {
1088 1089 1090 1091 1092 1093 1094 1095 1096
        if (d->m_snippetOverlay->isVisible()) {
            e->accept();
            d->m_snippetOverlay->hide();
            d->m_snippetOverlay->clear();
            QTextCursor cursor = textCursor();
            cursor.clearSelection();
            setTextCursor(cursor);
            return;
        }
con's avatar
con committed
1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107
    }

    bool ro = isReadOnly();

    if (d->m_inBlockSelectionMode) {
        if (e == QKeySequence::Cut) {
            if (!ro) {
                cut();
                e->accept();
                return;
            }
1108
        } else if (e == QKeySequence::Delete || e->key() == Qt::Key_Backspace) {
con's avatar
con committed
1109 1110 1111 1112 1113
            if (!ro) {
                d->removeBlockSelection();
                e->accept();
                return;
            }
1114 1115 1116 1117 1118
        } else if (e == QKeySequence::Paste) {
            if (!ro) {
                d->removeBlockSelection();
                // continue
            }
con's avatar
con committed
1119 1120 1121 1122 1123 1124 1125 1126 1127
        }
    }


    if (!ro
        && (e == QKeySequence::InsertParagraphSeparator
            || (!d->m_lineSeparatorsAllowed && e == QKeySequence::InsertLineSeparator))
        ) {

1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138
        if (d->m_snippetOverlay->isVisible()) {
            e->accept();
            d->m_snippetOverlay->hide();
            d->m_snippetOverlay->clear();
            QTextCursor cursor = textCursor();
            cursor.movePosition(QTextCursor::EndOfBlock);
            setTextCursor(cursor);
            return;
        }


con's avatar
con committed
1139 1140 1141
        QTextCursor cursor = textCursor();
        if (d->m_inBlockSelectionMode)
            cursor.clearSelection();
1142
        const TabSettings &ts = d->m_document->tabSettings();
mae's avatar
mae committed
1143 1144
        cursor.beginEditBlock();

1145
        int extraBlocks = paragraphSeparatorAboutToBeInserted(cursor); // virtual
mae's avatar
mae committed
1146

1147
        if (ts.m_autoIndent) {
1148
            cursor.insertBlock();
con's avatar
con committed
1149
            indent(document(), cursor, QChar::Null);
1150 1151
        } else {
            cursor.insertBlock();
1152 1153 1154

            // After inserting the block, to avoid duplicating whitespace on the same line
            const QString previousBlockText = cursor.block().previous().text();
1155
            cursor.insertText(ts.indentationString(previousBlockText));
con's avatar
con committed
1156
        }
mae's avatar
mae committed
1157
        cursor.endEditBlock();
con's avatar
con committed
1158
        e->accept();
1159 1160 1161 1162 1163 1164 1165 1166 1167 1168

        if (extraBlocks > 0) {
            QTextCursor ensureVisible = cursor;
            while (extraBlocks > 0) {
                --extraBlocks;
                ensureVisible.movePosition(QTextCursor::NextBlock);
            }
            setTextCursor(ensureVisible);
        }

con's avatar
con committed
1169 1170
        setTextCursor(cursor);
        return;
1171 1172 1173
    } else if (!ro
               && (e == QKeySequence::MoveToStartOfBlock
                   || e == QKeySequence::SelectStartOfBlock)){
mae's avatar
mae committed
1174 1175 1176 1177
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier)) {
            e->accept();
            return;
        }
1178 1179 1180 1181 1182 1183
        handleHomeKey(e == QKeySequence::SelectStartOfBlock);
        e->accept();
        return;
    } else if (!ro
               && (e == QKeySequence::MoveToStartOfLine
                   || e == QKeySequence::SelectStartOfLine)){
mae's avatar
mae committed
1184 1185 1186 1187
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier)) {
                e->accept();
                return;
        }
1188 1189 1190 1191 1192 1193 1194 1195
        QTextCursor cursor = textCursor();
        if (QTextLayout *layout = cursor.block().layout()) {
            if (layout->lineForTextPosition(cursor.position() - cursor.block().position()).lineNumber() == 0) {
                handleHomeKey(e == QKeySequence::SelectStartOfLine);
                e->accept();
                return;
            }
        }
1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212
    } else if (!ro
               && e == QKeySequence::DeleteStartOfWord
               && d->m_document->tabSettings().m_autoIndent
               && !textCursor().hasSelection()){
        e->accept();
        QTextCursor c = textCursor();
        int pos = c.position();
        c.movePosition(QTextCursor::PreviousWord);
        int targetpos = c.position();
        forever {
            handleBackspaceKey();
            int cpos = textCursor().position();
            if (cpos == pos || cpos <= targetpos)
                break;
            pos = cpos;
        }
        return;
con's avatar
con committed
1213 1214 1215 1216
    } else switch (e->key()) {


#if 0
1217 1218 1219 1220
    case Qt::Key_Dollar: {
            d->m_overlay->setVisible(!d->m_overlay->isVisible());
            d->m_overlay->setCursor(textCursor());
            e->accept();
con's avatar
con committed
1221 1222 1223 1224 1225
        return;

    } break;
#endif
    case Qt::Key_Tab:
Joel Nordell's avatar
Joel Nordell committed
1226
    case Qt::Key_Backtab: {
con's avatar
con committed
1227
        if (ro) break;
1228 1229 1230 1231 1232
        if (d->m_snippetOverlay->isVisible() && !d->m_snippetOverlay->isEmpty()) {
            d->snippetTabOrBacktab(e->key() == Qt::Key_Tab);
            e->accept();
            return;
        }
Joel Nordell's avatar
Joel Nordell committed
1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243
        QTextCursor cursor = textCursor();
        int newPosition;
        if (d->m_document->tabSettings().tabShouldIndent(document(), cursor, &newPosition)) {
            if (newPosition != cursor.position() && !cursor.hasSelection()) {
                cursor.setPosition(newPosition);
                setTextCursor(cursor);
            }
            indent(document(), cursor, QChar::Null);
        } else {
            indentOrUnindent(e->key() == Qt::Key_Tab);
        }
con's avatar
con committed
1244 1245
        e->accept();
        return;
Joel Nordell's avatar
Joel Nordell committed
1246
    } break;
con's avatar
con committed
1247 1248
    case Qt::Key_Backspace:
        if (ro) break;
1249
        if ((e->modifiers() & (Qt::ControlModifier
con's avatar
con committed
1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270
                               | Qt::ShiftModifier
                               | Qt::AltModifier
                               | Qt::MetaModifier)) == Qt::NoModifier
            && !textCursor().hasSelection()) {
            handleBackspaceKey();
            e->accept();
            return;
        }
        break;
    case Qt::Key_Up:
    case Qt::Key_Down:
        if (e->modifiers() & Qt::ControlModifier) {
            verticalScrollBar()->triggerAction(
                    e->key() == Qt::Key_Up ? QAbstractSlider::SliderSingleStepSub :
                                             QAbstractSlider::SliderSingleStepAdd);
            e->accept();
            return;
        }
        // fall through
    case Qt::Key_Right:
    case Qt::Key_Left:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1271
#ifndef Q_WS_MAC
con's avatar
con committed
1272
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier)) {
mae's avatar
mae committed
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285
            int diff_row = 0;
            int diff_col = 0;
            if (e->key() == Qt::Key_Up)
                diff_row = -1;
            else if (e->key() == Qt::Key_Down)
                diff_row = 1;
            else if (e->key() == Qt::Key_Left)
                diff_col = -1;
            else if (e->key() == Qt::Key_Right)
                diff_col = 1;
            handleBlockSelection(diff_row, diff_col);
            e->accept();
            return;
mae's avatar
mae committed
1286 1287 1288 1289 1290 1291 1292
        } else {
            // leave block selection mode
            if (d->m_inBlockSelectionMode) {
                d->m_inBlockSelectionMode = false;
                d->m_blockSelection.clear();
                viewport()->update();
            }
con's avatar
con committed
1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318
        }
#endif
        break;
    case Qt::Key_PageUp:
    case Qt::Key_PageDown:
        if (e->modifiers() == Qt::ControlModifier) {
            verticalScrollBar()->triggerAction(
                    e->key() == Qt::Key_PageUp ? QAbstractSlider::SliderPageStepSub :
                                                 QAbstractSlider::SliderPageStepAdd);
            e->accept();
            return;
        }
        break;

    default:
        break;
    }

    if (d->m_inBlockSelectionMode) {
        QString text = e->text();
        if (!text.isEmpty() && (text.at(0).isPrint() || text.at(0) == QLatin1Char('\t'))) {
            d->removeBlockSelection(text);
            goto skip_event;
        }
    }

mae's avatar
mae committed
1319 1320 1321 1322 1323 1324 1325
    if (e->key() == Qt::Key_H && e->modifiers() ==
#ifdef Q_OS_DARWIN
        Qt::MetaModifier
#else
        Qt::ControlModifier
#endif
        ) {
1326 1327 1328 1329 1330
        universalHelper();
        e->accept();
        return;
    }

1331 1332
    if (d->m_snippetOverlay->isVisible()
        && (e->key() == Qt::Key_Delete || e->key() == Qt::Key_Backspace)) {
1333
        d->snippetCheckCursor(textCursor());
1334
    }
1335

mae's avatar
mae committed
1336 1337
    if (ro || e->text().isEmpty() || !e->text().at(0).isPrint()) {
        QPlainTextEdit::keyPressEvent(e);
mae's avatar
mae committed
1338
    } else if ((e->modifiers() & (Qt::ControlModifier|Qt::AltModifier)) != Qt::ControlModifier){
mae's avatar
mae committed
1339 1340
        QTextCursor cursor = textCursor();
        QString text = e->text();
1341
        QString autoText = autoComplete(cursor, text);
1342

mae's avatar
mae committed
1343 1344
        QChar electricChar;
        if (d->m_document->tabSettings().m_autoIndent) {
1345
            foreach (QChar c, text) {
mae's avatar
mae committed
1346 1347 1348 1349 1350