basetexteditor.cpp 179 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"
con's avatar
con committed
42

43
#include <aggregation/aggregate.h>
44
#include <coreplugin/actionmanager/actionmanager.h>
45 46
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/command.h>
con's avatar
con committed
47 48
#include <coreplugin/coreconstants.h>
#include <coreplugin/editormanager/editormanager.h>
49
#include <coreplugin/icore.h>
50
#include <coreplugin/manhattanstyle.h>
51
#include <extensionsystem/pluginmanager.h>
con's avatar
con committed
52 53
#include <find/basetextfind.h>
#include <utils/linecolumnlabel.h>
hjk's avatar
hjk committed
54
#include <utils/qtcassert.h>
55
#include <utils/stylehelper.h>
con's avatar
con committed
56 57 58 59 60 61

#include <QtCore/QCoreApplication>
#include <QtCore/QTextCodec>
#include <QtCore/QFile>
#include <QtCore/QDebug>
#include <QtCore/QTimer>
62
#include <QtCore/QTimeLine>
con's avatar
con committed
63 64 65 66 67 68 69 70 71 72 73 74 75
#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>
76
#include <QtGui/QTextDocumentFragment>
con's avatar
con committed
77 78 79 80 81
#include <QtGui/QTextBlock>
#include <QtGui/QTextLayout>
#include <QtGui/QToolBar>
#include <QtGui/QToolTip>
#include <QtGui/QInputDialog>
82
#include <QtGui/QMenu>
con's avatar
con committed
83 84 85 86

using namespace TextEditor;
using namespace TextEditor::Internal;

mae's avatar
mae committed
87 88 89 90 91 92 93 94 95 96
namespace {
    class Locker {
        bool *m_bool;
    public:
        inline Locker(bool *b):m_bool(b){ *m_bool = true; }
        inline ~Locker() { *m_bool = false; }
    };
}


con's avatar
con committed
97 98

namespace TextEditor {
99
namespace Internal {
con's avatar
con committed
100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134

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);
    }
};

135 136
} // namespace Internal
} // namespace TextEditor
con's avatar
con committed
137

138

con's avatar
con committed
139
ITextEditor *BaseTextEditor::openEditorAt(const QString &fileName,
140 141
                                          int line,
                                          int column,
142 143
                                          const QString &editorKind,
                                          bool *newEditor)
con's avatar
con committed
144
{
145
    Core::EditorManager *editorManager = Core::EditorManager::instance();
146
    editorManager->addCurrentPositionToNavigationHistory();
147 148
    Core::IEditor *editor = editorManager->openEditor(fileName, editorKind,
            Core::EditorManager::IgnoreNavigationHistory, newEditor);
con's avatar
con committed
149 150 151 152 153
    TextEditor::ITextEditor *texteditor = qobject_cast<TextEditor::ITextEditor *>(editor);
    if (texteditor) {
        texteditor->gotoLine(line, column);
        return texteditor;
    }
154

con's avatar
con committed
155 156 157
    return 0;
}

158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
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
180 181 182
BaseTextEditor::BaseTextEditor(QWidget *parent)
    : QPlainTextEdit(parent)
{
183
    d = new BaseTextEditorPrivate;
con's avatar
con committed
184 185 186 187 188
    d->q = this;
    d->m_extraArea = new TextEditExtraArea(this);
    d->m_extraArea->setMouseTracking(true);
    setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);

189
    d->m_overlay = new TextEditorOverlay(this);
190
    d->m_snippetOverlay = new TextEditorOverlay(this);
191 192
    d->m_searchResultOverlay = new TextEditorOverlay(this);

con's avatar
con committed
193 194 195 196 197 198 199 200 201 202 203 204 205
    d->setupDocumentSignals(d->m_document);
    d->setupDocumentSignals(d->m_document);

    d->m_lastScrollPos = -1;
    setCursorWidth(2);

    // from RESEARCH

    setLayoutDirection(Qt::LeftToRight);
    viewport()->setMouseTracking(true);
    d->extraAreaSelectionAnchorBlockNumber
        = d->extraAreaToggleMarkBlockNumber
        = d->extraAreaHighlightCollapseBlockNumber
206
        = d->extraAreaHighlightCollapseColumn
con's avatar
con committed
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230
        = -1;

    d->visibleCollapsedBlockNumber = d->suggestedVisibleCollapsedBlockNumber = -1;

    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()));


    // 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()));

231 232 233 234
    d->m_highlightBlocksTimer = new QTimer(this);
    d->m_highlightBlocksTimer->setSingleShot(true);
    connect(d->m_highlightBlocksTimer, SIGNAL(timeout()), this, SLOT(_q_highlightBlocks()));

235
    d->m_animator = 0;
con's avatar
con committed
236 237 238 239

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

    slotUpdateExtraAreaWidth();
con's avatar
con committed
240
    updateHighlights();
con's avatar
con committed
241 242
    setFrameStyle(QFrame::NoFrame);

243 244 245 246
    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
247 248
    connect(Core::EditorManager::instance(), SIGNAL(currentEditorChanged(Core::IEditor*)),
            this, SLOT(currentEditorChanged(Core::IEditor*)));
mae's avatar
mae committed
249 250 251

    d->m_inKeyPressEvent = false;
    d->m_moveLineUndoHack = false;
con's avatar
con committed
252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282
}

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;
}

283 284 285 286 287 288
static int collapseBoxWidth(const QFontMetrics &fm)
{
    const int lineSpacing = fm.lineSpacing();
    return lineSpacing + lineSpacing%2 + 1;
}

con's avatar
con committed
289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461
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;
}


462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478
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
479 480 481 482 483 484

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

485
void BaseTextEditor::maybeEmitContentsChangedBecauseOfUndo()
486
{
mae's avatar
mae committed
487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502
    if (!d->m_inKeyPressEvent) {

        // i.e. the document was changed outside key press event
        // Possible with undo, cut, paste, etc.
        if (d->m_snippetOverlay->isVisible()) {

            d->m_snippetOverlay->hide();
            d->m_snippetOverlay->clear();
            QTextCursor cursor = textCursor();
            cursor.clearSelection();
            setTextCursor(cursor);
            return;
        }

    }
    if (document()->isRedoAvailable()) {
503
        emit editableInterface()->contentsChangedBecauseOfUndo();
mae's avatar
mae committed
504
    }
505 506
}

507
BaseTextEditorEditable *BaseTextEditor::editableInterface() const
con's avatar
con committed
508 509 510 511 512
{
    if (!d->m_editable) {
        d->m_editable = const_cast<BaseTextEditor*>(this)->createEditableInterface();
        connect(this, SIGNAL(textChanged()),
                d->m_editable, SIGNAL(contentsChanged()));
513
        connect(this, SIGNAL(textChanged()),
514
                this, SLOT(maybeEmitContentsChangedBecauseOfUndo()));
con's avatar
con committed
515 516 517 518 519 520 521 522 523
        connect(this, SIGNAL(changed()),
                d->m_editable, SIGNAL(changed()));
    }
    return d->m_editable;
}


void BaseTextEditor::currentEditorChanged(Core::IEditor *editor)
{
524
    if (editor == editableInterface()) {
con's avatar
con committed
525 526
        if (d->m_document->hasDecodingError()) {
            Core::EditorManager::instance()->showEditorInfoBar(QLatin1String(Constants::SELECT_ENCODING),
527 528
                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
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562
                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
563 564 565 566 567
void BaseTextEditor::triggerQuickFix()
{
    emit requestQuickFix(editableInterface());
}

con's avatar
con committed
568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
bool BaseTextEditor::createNew(const QString &contents)
{
    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;
}

585 586 587 588 589 590
/*
  Collapses the first comment in a file, if there is only whitespace above
  */
void BaseTextEditorPrivate::collapseLicenseHeader()
{
    QTextDocument *doc = q->document();
591
    BaseTextDocumentLayout *documentLayout = qobject_cast<BaseTextDocumentLayout*>(doc->documentLayout());
592 593 594
    QTC_ASSERT(documentLayout, return);
    QTextBlock block = doc->firstBlock();
    const TabSettings &ts = m_document->tabSettings();
595
    while (block.isValid() && block.isVisible()) {
596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614
        TextBlockUserData *data = TextBlockUserData::canCollapse(block);
        if (data && block.next().isVisible()) {
            QChar character;
            static_cast<TextBlockUserData*>(data)->collapseAtPos(&character);
            if (character != QLatin1Char('+'))
                break; // not a comment
            TextBlockUserData::doCollapse(block, false);
            moveCursorVisible();
            documentLayout->requestUpdate();
            documentLayout->emitDocumentSizeChanged();
            break;
        }
        QString text = block.text();
        if (ts.firstNonSpace(text) < text.size())
            break;
        block = block.next();
    }
}

615 616 617 618 619 620 621
const Utils::ChangeSet &BaseTextEditor::changeSet() const
{
    return d->m_changeSet;
}

void BaseTextEditor::setChangeSet(const Utils::ChangeSet &changeSet)
{
Roberto Raggi's avatar
Roberto Raggi committed
622 623
    using namespace Utils;

624
    d->m_changeSet = changeSet;
Roberto Raggi's avatar
Roberto Raggi committed
625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651

    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
    }
652 653
}

654
Core::IFile *BaseTextEditor::file()
con's avatar
con committed
655 656 657 658 659 660
{
    return d->m_document;
}

void BaseTextEditor::editorContentsChange(int position, int charsRemoved, int charsAdded)
{
661 662 663
    if (d->m_animator)
        d->m_animator->finish();

664

con's avatar
con committed
665
    d->m_contentsChanged = true;
666
    QTextDocument *doc = document();
con's avatar
con committed
667 668 669 670 671 672

    // Keep the line numbers and the block information for the text marks updated
    if (charsRemoved != 0) {
        d->updateMarksLineNumber();
        d->updateMarksBlock(document()->findBlock(position));
    } else {
673 674
        const QTextBlock posBlock = doc->findBlock(position);
        const QTextBlock nextBlock = doc->findBlock(position + charsAdded);
con's avatar
con committed
675 676 677 678 679 680 681 682
        if (posBlock != nextBlock) {
            d->updateMarksLineNumber();
            d->updateMarksBlock(posBlock);
            d->updateMarksBlock(nextBlock);
        } else {
            d->updateMarksBlock(posBlock);
        }
    }
683 684

    if (doc->isRedoAvailable())
685
        emit editableInterface()->contentsChangedBecauseOfUndo();
con's avatar
con committed
686 687 688 689 690 691 692 693 694 695 696
}


void BaseTextEditor::slotSelectionChanged()
{
    bool changed = (d->m_inBlockSelectionMode != d->m_lastEventWasBlockSelectionEvent);
    d->m_inBlockSelectionMode = d->m_lastEventWasBlockSelectionEvent;
    if (changed || d->m_inBlockSelectionMode)
        viewport()->update();
    if (!d->m_inBlockSelectionMode)
        d->m_blockSelectionExtraX = 0;
697 698
    if (!d->m_selectBlockAnchor.isNull() && !textCursor().hasSelection())
        d->m_selectBlockAnchor = QTextCursor();
699 700 701

    // Clear any link which might be showing when the selection changes
    clearLink();
con's avatar
con committed
702 703
}

704 705 706
void BaseTextEditor::gotoBlockStart()
{
    QTextCursor cursor = textCursor();
707
    if (TextBlockUserData::findPreviousOpenParenthesis(&cursor, false)) {
708
        setTextCursor(cursor);
709 710
        _q_matchParentheses();
    }
711 712 713 714 715
}

void BaseTextEditor::gotoBlockEnd()
{
    QTextCursor cursor = textCursor();
716
    if (TextBlockUserData::findNextClosingParenthesis(&cursor, false)) {
717
        setTextCursor(cursor);
718 719
        _q_matchParentheses();
    }
720 721 722 723 724
}

void BaseTextEditor::gotoBlockStartWithSelection()
{
    QTextCursor cursor = textCursor();
725
    if (TextBlockUserData::findPreviousOpenParenthesis(&cursor, true)) {
726
        setTextCursor(cursor);
727 728
        _q_matchParentheses();
    }
729 730 731 732 733
}

void BaseTextEditor::gotoBlockEndWithSelection()
{
    QTextCursor cursor = textCursor();
734
    if (TextBlockUserData::findNextClosingParenthesis(&cursor, true)) {
735
        setTextCursor(cursor);
736 737 738 739
        _q_matchParentheses();
    }
}

mae's avatar
mae committed
740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822

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()
{
    moveCursor(QTextCursor::NextRow);
}

void BaseTextEditor::gotoNextLineWithSelection()
{
    moveCursor(QTextCursor::NextRow, QTextCursor::KeepAnchor);
}

void BaseTextEditor::gotoPreviousLine()
{
    moveCursor(QTextCursor::PreviousRow);
}

void BaseTextEditor::gotoPreviousLineWithSelection()
{
    moveCursor(QTextCursor::PreviousRow, QTextCursor::KeepAnchor);
}

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);
}



823 824
static QTextCursor flippedCursor(const QTextCursor &cursor)
{
825 826 827 828
    QTextCursor flipped = cursor;
    flipped.clearSelection();
    flipped.setPosition(cursor.anchor(), QTextCursor::KeepAnchor);
    return flipped;
829 830
}

831 832 833 834 835 836 837 838 839 840 841 842 843
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;
844 845
    setTextCursor(flippedCursor(cursor));
    _q_matchParentheses();
846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867
}

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);

868 869
    setTextCursor(flippedCursor(cursor));
    _q_matchParentheses();
870 871
}

872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931
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);
}

932
void BaseTextEditor::joinLines()
933
{
934 935 936
    QTextCursor cursor = textCursor();
    QTextCursor start = cursor;
    QTextCursor end = cursor;
937

938 939
    start.setPosition(cursor.selectionStart());
    end.setPosition(cursor.selectionEnd() - 1);
940

941
    int lineCount = qMax(1, end.blockNumber() - start.blockNumber());
942

943 944 945 946 947 948 949
    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();
950

951 952 953 954 955 956 957 958 959 960 961 962 963
        // 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);
964 965
}

966 967 968 969 970 971 972 973 974 975 976 977 978 979
void BaseTextEditor::moveLineUp()
{
    moveLineUpDown(true);
}

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

void BaseTextEditor::moveLineUpDown(bool up)
{
    QTextCursor cursor = textCursor();
    QTextCursor move = cursor;
980 981 982

    move.setVisualNavigation(false); // this opens collapsed items instead of destroying them

983 984 985 986
    if (d->m_moveLineUndoHack)
        move.joinPreviousEditBlock();
    else
        move.beginEditBlock();
987 988 989 990 991 992 993

    bool hasSelection = cursor.hasSelection();

    if (cursor.hasSelection()) {
        move.setPosition(cursor.selectionStart());
        move.movePosition(QTextCursor::StartOfBlock);
        move.setPosition(cursor.selectionEnd(), QTextCursor::KeepAnchor);
994
        move.movePosition(move.atBlockStart() ? QTextCursor::Left: QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
995 996 997 998 999 1000 1001
    } else {
        move.movePosition(QTextCursor::StartOfBlock);
        move.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
    }
    QString text = move.selectedText();
    move.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor);
    move.removeSelectedText();
1002

1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016
    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();
        }
    }
1017

1018 1019 1020 1021
    int start = move.position();
    move.clearSelection();
    move.insertText(text);
    int end = move.position();
1022

1023 1024 1025 1026 1027
    if (hasSelection) {
        move.setPosition(start);
        move.setPosition(end, QTextCursor::KeepAnchor);
    }

mae's avatar
mae committed
1028
    reindent(document(), move);
1029 1030
    move.endEditBlock();

1031
    setTextCursor(move);
1032
    d->m_moveLineUndoHack = true;
1033
}
1034

1035 1036
void BaseTextEditor::cleanWhitespace()
{
1037
    d->m_document->cleanWhitespace(textCursor());
1038
}
1039

con's avatar
con committed
1040 1041
void BaseTextEditor::keyPressEvent(QKeyEvent *e)
{
mae's avatar
mae committed
1042 1043
    Locker inKeyPressEvent(&d->m_inKeyPressEvent);

1044 1045 1046
    viewport()->setCursor(Qt::BlankCursor);
    QToolTip::hideText();

1047
    d->m_moveLineUndoHack = false;
con's avatar
con committed
1048 1049 1050 1051 1052 1053
    d->clearVisibleCollapsedBlock();

    QKeyEvent *original_e = e;
    d->m_lastEventWasBlockSelectionEvent = false;

    if (e->key() == Qt::Key_Escape) {
1054 1055 1056 1057 1058 1059 1060 1061 1062
        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
1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073
    }

    bool ro = isReadOnly();

    if (d->m_inBlockSelectionMode) {
        if (e == QKeySequence::Cut) {
            if (!ro) {
                cut();
                e->accept();
                return;
            }
1074
        } else if (e == QKeySequence::Delete || e->key() == Qt::Key_Backspace) {
con's avatar
con committed
1075 1076 1077 1078 1079
            if (!ro) {
                d->removeBlockSelection();
                e->accept();
                return;
            }
1080 1081 1082 1083 1084
        } else if (e == QKeySequence::Paste) {
            if (!ro) {
                d->removeBlockSelection();
                // continue
            }
con's avatar
con committed
1085 1086 1087 1088 1089 1090 1091 1092 1093
        }
    }


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

1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104
        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
1105 1106 1107
        QTextCursor cursor = textCursor();
        if (d->m_inBlockSelectionMode)
            cursor.clearSelection();
1108
        const TabSettings &ts = d->m_document->tabSettings();
mae's avatar
mae committed
1109 1110
        cursor.beginEditBlock();

1111
        int extraBlocks = paragraphSeparatorAboutToBeInserted(cursor); // virtual
mae's avatar
mae committed
1112

1113
        if (ts.m_autoIndent) {
1114
            cursor.insertBlock();
con's avatar
con committed
1115
            indent(document(), cursor, QChar::Null);
1116 1117
        } else {
            cursor.insertBlock();
1118 1119 1120

            // After inserting the block, to avoid duplicating whitespace on the same line
            const QString previousBlockText = cursor.block().previous().text();
1121
            cursor.insertText(ts.indentationString(previousBlockText));
con's avatar
con committed
1122
        }
mae's avatar
mae committed
1123
        cursor.endEditBlock();
con's avatar
con committed
1124
        e->accept();
1125 1126 1127 1128 1129 1130 1131 1132 1133 1134

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

con's avatar
con committed
1135 1136
        setTextCursor(cursor);
        return;
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157
    } else if (!ro
               && (e == QKeySequence::MoveToStartOfBlock
                   || e == QKeySequence::SelectStartOfBlock)){
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier))
            d->m_lastEventWasBlockSelectionEvent = true;
        handleHomeKey(e == QKeySequence::SelectStartOfBlock);
        e->accept();
        return;
    } else if (!ro
               && (e == QKeySequence::MoveToStartOfLine
                   || e == QKeySequence::SelectStartOfLine)){
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier))
            d->m_lastEventWasBlockSelectionEvent = true;
        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;
            }
        }
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174
    } 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
1175 1176 1177 1178
    } else switch (e->key()) {


#if 0
1179 1180 1181 1182
    case Qt::Key_Dollar: {
            d->m_overlay->setVisible(!d->m_overlay->isVisible());
            d->m_overlay->setCursor(textCursor());
            e->accept();
con's avatar
con committed
1183 1184 1185 1186 1187
        return;

    } break;
#endif
    case Qt::Key_Tab:
Joel Nordell's avatar
Joel Nordell committed
1188
    case Qt::Key_Backtab: {
con's avatar
con committed
1189
        if (ro) break;
1190 1191 1192 1193 1194
        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
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
        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
1206 1207
        e->accept();
        return;
Joel Nordell's avatar
Joel Nordell committed
1208
    } break;
con's avatar
con committed
1209 1210
    case Qt::Key_Backspace:
        if (ro) break;
1211
        if ((e->modifiers() & (Qt::ControlModifier
con's avatar
con committed
1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230
                               | 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
1231
    case Qt::Key_End:
con's avatar
con committed
1232 1233
    case Qt::Key_Right:
    case Qt::Key_Left:
Oswald Buddenhagen's avatar
Oswald Buddenhagen committed
1234
#ifndef Q_WS_MAC
con's avatar
con committed
1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286
        if ((e->modifiers() & (Qt::AltModifier | Qt::ShiftModifier)) == (Qt::AltModifier | Qt::ShiftModifier)) {

            d->m_lastEventWasBlockSelectionEvent = true;

            if (d->m_inBlockSelectionMode) {
                if (e->key() == Qt::Key_Right && textCursor().atBlockEnd()) {
                    d->m_blockSelectionExtraX++;
                    viewport()->update();
                    e->accept();
                    return;
                } else if (e->key() == Qt::Key_Left && d->m_blockSelectionExtraX > 0) {
                    d->m_blockSelectionExtraX--;
                    e->accept();
                    viewport()->update();
                    return;
                }
            }

            e = new QKeyEvent(
                e->type(),
                e->key(),
                e->modifiers() & ~Qt::AltModifier,
                e->text(),
                e->isAutoRepeat(),
                e->count()
                );
        }
#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
1287 1288 1289 1290 1291 1292 1293
    if (e->key() == Qt::Key_H && e->modifiers() ==
#ifdef Q_OS_DARWIN
        Qt::MetaModifier
#else
        Qt::ControlModifier
#endif
        ) {
1294 1295 1296 1297 1298
        universalHelper();
        e->accept();
        return;
    }

1299 1300
    if (d->m_snippetOverlay->isVisible()
        && (e->key() == Qt::Key_Delete || e->key() == Qt::Key_Backspace)) {
1301
        d->snippetCheckCursor(textCursor());
1302
    }
1303

mae's avatar
mae committed
1304 1305
    if (ro || e->text().isEmpty() || !e->text().at(0).isPrint()) {
        QPlainTextEdit::keyPressEvent(e);
mae's avatar
mae committed
1306
    } else if ((e->modifiers() & (Qt::ControlModifier|Qt::AltModifier)) != Qt::ControlModifier){
mae's avatar
mae committed
1307 1308
        QTextCursor cursor = textCursor();
        QString text = e->text();
1309
        QString autoText = autoComplete(cursor, text);
1310

mae's avatar
mae committed
1311 1312
        QChar electricChar;
        if (d->m_document->tabSettings().m_autoIndent) {
1313
            foreach (QChar c, text) {
mae's avatar
mae committed
1314 1315 1316 1317 1318 1319
                if (isElectricCharacter(c)) {
                    electricChar = c;
                    break;
                }
            }
        }
1320

1321 1322 1323
        if (d->m_snippetOverlay->isVisible())
            d->snippetCheckCursor(cursor);

1324 1325
        bool doEditBlock = !(electricChar.isNull() && autoText.isEmpty());
        if (doEditBlock)
mae's avatar
mae committed
1326
            cursor.beginEditBlock();
1327

mae's avatar
mae committed
1328
        cursor.insertText(text);
1329

1330
        if (!autoText.isEmpty()) {
mae's avatar
mae committed
1331 1332 1333 1334
            int pos = cursor.position();
            cursor.insertText(autoText);
            cursor.setPosition(pos);
        }
1335
        if (!electricChar.isNull() && contextAllowsElectricCharacters(cursor))
mae's avatar
mae committed
1336
            indent(document(), cursor, electricChar);
1337 1338

        if (doEditBlock)
mae's avatar
mae committed
1339
            cursor.endEditBlock();
1340

mae's avatar
mae committed
1341 1342
        setTextCursor(cursor);
    }
con's avatar
con committed
1343 1344 1345

skip_event:
    if (!ro && e->key() == Qt::Key_Delete && d->m_parenthesesMatchingEnabled)
1346 1347
        d->m_parenthesesMatchingTimer->start(50);

con's avatar
con committed
1348 1349 1350 1351 1352 1353 1354 1355

    if (!ro && d->m_contentsChanged && !e->text().isEmpty() && e->text().at(0).isPrint())
        emit requestAutoCompletion(editableInterface(), false);

    if (e != original_e)
        delete e;
}

mae's avatar
mae committed
1356
void BaseTextEditor::insertCodeSnippet(const QTextCursor &cursor_arg, const QString &snippet)
1357
{
1358 1359 1360 1361 1362
    if ((snippet.count('$') % 2) != 0) {
        qWarning() << "invalid snippet";
        return;
    }

mae's avatar
mae committed
1363 1364 1365 1366 1367 1368 1369
    QList<QTextEdit::ExtraSelection> selections;

    QTextCursor cursor = cursor_arg;
    cursor.beginEditBlock();
    cursor.removeSelectedText();
    const int startCursorPosition = cursor.position();

1370
    int pos = 0;
mae's avatar
mae committed
1371 1372
    QMap<int, int> positions;

1373
    while (pos < snippet.size()) {
1374
        if (snippet.at(pos) != QChar::ObjectReplacementCharacter) {
1375 1376
            const int start = pos;
            do { ++pos; }