basetexteditor.h 23.8 KB
Newer Older
1
/**************************************************************************
con's avatar
con committed
2
3
4
**
** This file is part of Qt Creator
**
5
** Copyright (c) 2009 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
31
32
33
34
#ifndef BASETEXTEDITOR_H
#define BASETEXTEDITOR_H

#include "itexteditable.h"

35
36
#include <find/ifindsupport.h>

con's avatar
con committed
37
#include <QtGui/QPlainTextEdit>
38
#include <QtGui/QTextBlockUserData>
con's avatar
con committed
39
40

QT_BEGIN_NAMESPACE
41
class QKeyEvent;
con's avatar
con committed
42
class QToolBar;
43
class QTimeLine;
con's avatar
con committed
44
45
QT_END_NAMESPACE

46
47
namespace Utils {
    class LineColumnLabel;
48
    class ChangeSet;
con's avatar
con committed
49
50
51
52
53
54
}

namespace TextEditor {

namespace Internal {
    class BaseTextEditorPrivate;
55
    class TextEditorOverlay;
con's avatar
con committed
56
57
58
59
60
61
62
63
}

class ITextMark;
class ITextMarkable;

class TextEditorActionHandler;
class BaseTextDocument;
class FontSettings;
64
struct BehaviorSettings;
65
struct DisplaySettings;
con's avatar
con committed
66
struct StorageSettings;
67
struct TabSettings;
con's avatar
con committed
68
69
70

struct Parenthesis;
typedef QVector<Parenthesis> Parentheses;
71

con's avatar
con committed
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
struct TEXTEDITOR_EXPORT Parenthesis
{
    enum Type { Opened, Closed };

    inline Parenthesis() : type(Opened), pos(-1) {}
    inline Parenthesis(Type t, QChar c, int position)
        : type(t), chr(c), pos(position) {}
    Type type;
    QChar chr;
    int pos;
    static int collapseAtPos(const Parentheses &parentheses, QChar *character = 0);
    static int closeCollapseAtPos(const Parentheses &parentheses);
    static bool hasClosingCollapse(const Parentheses &parentheses);
};


88
89
class TEXTEDITOR_EXPORT TextBlockUserData : public QTextBlockUserData
{
con's avatar
con committed
90
91
92
93
94
95
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
public:

    enum CollapseMode { NoCollapse , CollapseThis, CollapseAfter };
    enum ClosingCollapseMode { NoClosingCollapse, ClosingCollapse, ClosingCollapseAtEnd };

    inline TextBlockUserData()
        : m_collapseIncludesClosure(false),
          m_collapseMode(NoCollapse),
          m_closingCollapseMode(NoClosingCollapse),
          m_collapsed(false),
          m_ifdefedOut(false) {}
    ~TextBlockUserData();

    inline TextMarks marks() const { return m_marks; }
    inline void addMark(ITextMark *mark) { m_marks += mark; }
    inline bool removeMark(ITextMark *mark) { return m_marks.removeAll(mark); }
    inline bool hasMark(ITextMark *mark) const { return m_marks.contains(mark); }
    inline void clearMarks() { m_marks.clear(); }
    inline void documentClosing() { Q_FOREACH(ITextMark *tm, m_marks) { tm->documentClosing(); } m_marks.clear();}

    inline CollapseMode collapseMode() const { return (CollapseMode)m_collapseMode; }
    inline void setCollapseMode(CollapseMode c) { m_collapseMode = c; }

    inline void setClosingCollapseMode(ClosingCollapseMode c) { m_closingCollapseMode = c; }
    inline ClosingCollapseMode closingCollapseMode() const { return (ClosingCollapseMode) m_closingCollapseMode; }

    inline bool hasClosingCollapse() const { return closingCollapseMode() != NoClosingCollapse; }
    inline bool hasClosingCollapseAtEnd() const { return closingCollapseMode() == ClosingCollapseAtEnd; }
    inline bool hasClosingCollapseInside() const { return closingCollapseMode() == ClosingCollapse; }

    inline void setCollapsed(bool b) { m_collapsed = b; }
    inline bool collapsed() const { return m_collapsed; }

    inline void setCollapseIncludesClosure(bool b) { m_collapseIncludesClosure = b; }
    inline bool collapseIncludesClosure() const { return m_collapseIncludesClosure; }

    inline void setParentheses(const Parentheses &parentheses) { m_parentheses = parentheses; }
    inline void clearParentheses() { m_parentheses.clear(); }
    inline const Parentheses &parentheses() const { return m_parentheses; }
    inline bool hasParentheses() const { return !m_parentheses.isEmpty(); }
130
    int braceDepthDelta() const;
con's avatar
con committed
131
132
133
134
135

    inline bool setIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = true; return !result; }
    inline bool clearIfdefedOut() { bool result = m_ifdefedOut; m_ifdefedOut = false; return result;}
    inline bool ifdefedOut() const { return m_ifdefedOut; }

136
    inline static TextBlockUserData *canCollapse(const QTextBlock &block) {
con's avatar
con committed
137
138
139
        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
        if (!data || data->collapseMode() != CollapseAfter) {
            data = static_cast<TextBlockUserData*>(block.next().userData());
mae's avatar
mae committed
140
            if (!data || data->collapseMode() != TextBlockUserData::CollapseThis)
con's avatar
con committed
141
142
                data = 0;
        }
mae's avatar
mae committed
143
144
        if (data && data->m_ifdefedOut)
            data = 0;
con's avatar
con committed
145
146
147
        return data;
    }

148
149
    inline static bool hasCollapseAfter(const QTextBlock & block)
    {
150
        if (!block.isValid()) {
mae's avatar
mae committed
151
152
            return false;
        } else if (block.next().isValid()) {
153
            TextBlockUserData *data = static_cast<TextBlockUserData*>(block.next().userData());
154
155
156
157
158
159
            if (data && data->collapseMode() == TextBlockUserData::CollapseThis &&  !data->m_ifdefedOut)
                return true;
        }
        return false;
    }

con's avatar
con committed
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
    inline static bool hasClosingCollapse(const QTextBlock &block) {
        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
        return (data && data->hasClosingCollapse());
    }

    inline static bool hasClosingCollapseAtEnd(const QTextBlock &block) {
        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
        return (data && data->hasClosingCollapseAtEnd());
    }

    inline static bool hasClosingCollapseInside(const QTextBlock &block) {
        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
        return (data && data->hasClosingCollapseInside());
    }

    static QTextBlock testCollapse(const QTextBlock& block);
    static void doCollapse(const QTextBlock& block, bool visible);

178
    int collapseAtPos(QChar *character = 0) const;
con's avatar
con committed
179
180
181
182
183
184

    enum MatchType { NoMatch, Match, Mismatch  };
    static MatchType checkOpenParenthesis(QTextCursor *cursor, QChar c);
    static MatchType checkClosedParenthesis(QTextCursor *cursor, QChar c);
    static MatchType matchCursorBackward(QTextCursor *cursor);
    static MatchType matchCursorForward(QTextCursor *cursor);
185
186
    static bool findPreviousOpenParenthesis(QTextCursor *cursor, bool select = false);
    static bool findNextClosingParenthesis(QTextCursor *cursor, bool select = false);
con's avatar
con committed
187

mae's avatar
mae committed
188
    static bool findPreviousBlockOpenParenthesis(QTextCursor *cursor, bool checkStartPosition = false);
189
190
    static bool findNextBlockClosingParenthesis(QTextCursor *cursor);

con's avatar
con committed
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219

private:
    TextMarks m_marks;
    uint m_collapseIncludesClosure : 1;
    uint m_collapseMode : 4;
    uint m_closingCollapseMode : 4;
    uint m_collapsed : 1;
    uint m_ifdefedOut : 1;
    Parentheses m_parentheses;
};


class TEXTEDITOR_EXPORT TextEditDocumentLayout : public QPlainTextDocumentLayout
{
    Q_OBJECT

public:
    TextEditDocumentLayout(QTextDocument *doc);
    ~TextEditDocumentLayout();

    QRectF blockBoundingRect(const QTextBlock &block) const;

    static void setParentheses(const QTextBlock &block, const Parentheses &parentheses);
    static void clearParentheses(const QTextBlock &block) { setParentheses(block, Parentheses());}
    static Parentheses parentheses(const QTextBlock &block);
    static bool hasParentheses(const QTextBlock &block);
    static bool setIfdefedOut(const QTextBlock &block);
    static bool clearIfdefedOut(const QTextBlock &block);
    static bool ifdefedOut(const QTextBlock &block);
220
221
222
223
    static int braceDepthDelta(const QTextBlock &block);
    static int braceDepth(const QTextBlock &block);
    static void setBraceDepth(QTextBlock &block, int depth);
    static void changeBraceDepth(QTextBlock &block, int delta);
con's avatar
con committed
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243

    static TextBlockUserData *testUserData(const QTextBlock &block) {
        return static_cast<TextBlockUserData*>(block.userData());
    }
    static TextBlockUserData *userData(const QTextBlock &block) {
        TextBlockUserData *data = static_cast<TextBlockUserData*>(block.userData());
        if (!data && block.isValid())
            const_cast<QTextBlock &>(block).setUserData((data = new TextBlockUserData));
        return data;
    }


    void emitDocumentSizeChanged() { emit documentSizeChanged(documentSize()); }
    int lastSaveRevision;
    bool hasMarks;
};


class BaseTextEditorEditable;

244
245
246
247
248
249
250
class TEXTEDITOR_EXPORT BaseTextEditorAnimator : public QObject
{
    Q_OBJECT

public:
    BaseTextEditorAnimator(QObject *parent);

251
252
    inline void setPosition(int position) { m_position = position; }
    inline int position() const { return m_position; }
253
254
255
256
257
258

    void setData(QFont f, QPalette pal, const QString &text);

    void draw(QPainter *p, const QPointF &pos);
    QRectF rect() const;

259
260
    inline qreal value() const { return m_value; }
    inline QPointF lastDrawPos() const { return m_lastDrawPos; }
261
262
263

    void finish();

mae's avatar
mae committed
264
265
    bool isRunning() const;

266
signals:
267
    void updateRequest(int position, QPointF lastPos, QRectF rect);
268
269
270
271
272
273
274
275
276


private slots:
    void step(qreal v);

private:
    QTimeLine *m_timeline;
    qreal m_value;
    int m_position;
277
    QPointF m_lastDrawPos;
278
279
280
281
282
283
284
    QFont m_font;
    QPalette m_palette;
    QString m_text;
    QSizeF m_size;
};


285
class TEXTEDITOR_EXPORT BaseTextEditor : public QPlainTextEdit
con's avatar
con committed
286
287
288
289
290
291
292
{
    Q_OBJECT

public:
    BaseTextEditor(QWidget *parent);
    ~BaseTextEditor();

293
    static ITextEditor *openEditorAt(const QString &fileName, int line, int column = 0,
294
                                     const QString &editorId = QString());
con's avatar
con committed
295

296
297
298
    const Utils::ChangeSet &changeSet() const;
    void setChangeSet(const Utils::ChangeSet &changeSet);

con's avatar
con committed
299
300
301
302
303
304
305
306
307
308
    // EditorInterface
    Core::IFile * file();
    bool createNew(const QString &contents);
    bool open(const QString &fileName = QString());
    QByteArray saveState() const;
    bool restoreState(const QByteArray &state);
    QString displayName() const;

    // ITextEditor

309
    void gotoLine(int line, int column = 0);
con's avatar
con committed
310
311
312
313
314
315
316
317
318
319

    int position(
        ITextEditor::PositionOperation posOp = ITextEditor::Current
        , int at = -1) const;
    void convertPosition(int pos, int *line, int *column) const;

    ITextEditable *editableInterface() const;
    ITextMarkable *markableInterface() const;

    virtual void triggerCompletions();
Roberto Raggi's avatar
Roberto Raggi committed
320
    virtual void triggerQuickFix();
con's avatar
con committed
321
322
323
324
325
326
327
328
329
330

    QChar characterAt(int pos) const;

    void print(QPrinter *);

    void setSuggestedFileName(const QString &suggestedFileName);
    QString mimeType() const;
    void setMimeType(const QString &mt);


331
332
    void appendStandardContextMenuActions(QMenu *menu);

con's avatar
con committed
333
334
335
336
337
338
339
340
341
342
343
    // Works only in conjunction with a syntax highlighter that puts
    // parentheses into text block user data
    void setParenthesesMatchingEnabled(bool b);
    bool isParenthesesMatchingEnabled() const;

    void setHighlightCurrentLine(bool b);
    bool highlightCurrentLine() const;

    void setLineNumbersVisible(bool b);
    bool lineNumbersVisible() const;

344

con's avatar
con committed
345
346
347
348
349
350
351
352
353
354
355
356
    void setMarksVisible(bool b);
    bool marksVisible() const;

    void setRequestMarkEnabled(bool b);
    bool requestMarkEnabled() const;

    void setLineSeparatorsAllowed(bool b);
    bool lineSeparatorsAllowed() const;

    void setCodeFoldingVisible(bool b);
    bool codeFoldingVisible() const;

357
358
359
    void setCodeFoldingSupported(bool b);
    bool codeFoldingSupported() const;

360
361
362
    void setMouseNavigationEnabled(bool b);
    bool mouseNavigationEnabled() const;

363
364
365
    void setScrollWheelZoomingEnabled(bool b);
    bool scrollWheelZoomingEnabled() const;

con's avatar
con committed
366
367
368
369
370
371
372
373
374
375
376
377
378
379
    void setRevisionsVisible(bool b);
    bool revisionsVisible() const;

    void setVisibleWrapColumn(int column);
    int visibleWrapColumn() const;

    void setActionHack(QObject *);
    QObject *actionHack() const;

    void setTextCodec(QTextCodec *codec);
    QTextCodec *textCodec() const;

    void setReadOnly(bool b);

380
381
    void setTextCursor(const QTextCursor &cursor);

382
383
    void insertCodeSnippet(const QString &snippet);

con's avatar
con committed
384
385
386
public slots:
    void setDisplayName(const QString &title);

mae's avatar
mae committed
387
388
    virtual void paste();
    virtual void cut();
con's avatar
con committed
389
390
391

    void zoomIn(int range = 1);
    void zoomOut(int range = 1);
mae's avatar
mae committed
392
    void zoomReset();
con's avatar
con committed
393

394
    void cutLine();
con's avatar
con committed
395
396
397
398
399
400
    void deleteLine();
    void unCollapseAll();
    void collapse();
    void expand();
    void selectEncoding();

401
402
403
404
405
    void gotoBlockStart();
    void gotoBlockEnd();
    void gotoBlockStartWithSelection();
    void gotoBlockEndWithSelection();

406
407
408
    void selectBlockUp();
    void selectBlockDown();

409
410
411
    void moveLineUp();
    void moveLineDown();

412
413
414
    void copyLineUp();
    void copyLineDown();

415
    void joinLines();
416

417
418
    void cleanWhitespace();

con's avatar
con committed
419
420
421
422
423
424
425
426
427
428
429
signals:
    void changed();

    // ITextEditor
    void contentsChanged();

protected:
    bool event(QEvent *e);
    void keyPressEvent(QKeyEvent *e);
    void wheelEvent(QWheelEvent *e);
    void changeEvent(QEvent *e);
430
    void focusInEvent(QFocusEvent *e);
mae's avatar
mae committed
431
    void focusOutEvent(QFocusEvent *e);
con's avatar
con committed
432

mae's avatar
mae committed
433
434
    void showEvent(QShowEvent *);

con's avatar
con committed
435
436
437
438
439
    // reimplemented to support block selection
    QMimeData *createMimeDataFromSelection() const;
    bool canInsertFromMimeData(const QMimeData *source) const;
    void insertFromMimeData(const QMimeData *source);

440
441
442
private:
    void maybeSelectLine();

con's avatar
con committed
443
444
public:
    void duplicateFrom(BaseTextEditor *editor);
445

con's avatar
con committed
446
447
448
449
450
451
452
453
454
455
456
457
protected:
    BaseTextDocument *baseTextDocument() const;
    void setBaseTextDocument(BaseTextDocument *doc);

    void setDefaultPath(const QString &defaultPath);

    virtual BaseTextEditorEditable *createEditableInterface() = 0;

private slots:
    void editorContentsChange(int position, int charsRemoved, int charsAdded);
    void memorizeCursorPosition();
    void restoreCursorPosition();
458
    void highlightSearchResults(const QString &txt, Find::IFindSupport::FindFlags findFlags);
con's avatar
con committed
459
460
461
462
463
464
    void setFindScope(const QTextCursor &);
    void currentEditorChanged(Core::IEditor *editor);

private:
    Internal::BaseTextEditorPrivate *d;
    friend class Internal::BaseTextEditorPrivate;
465
    friend class Internal::TextEditorOverlay;
con's avatar
con committed
466
467
468
469
470
471

public:
    QWidget *extraArea() const;
    virtual int extraAreaWidth(int *markWidthPtr = 0) const;
    virtual void extraAreaPaintEvent(QPaintEvent *);
    virtual void extraAreaLeaveEvent(QEvent *);
472
    virtual void extraAreaMouseEvent(QMouseEvent *);
con's avatar
con committed
473
474
475
476
477
478
479
480

    const TabSettings &tabSettings() const;
    const DisplaySettings &displaySettings() const;

    void markBlocksAsChanged(QList<int> blockNumbers);

    void ensureCursorVisible();

481
482
483
484
485
    enum ExtraSelectionKind {
        CurrentLineSelection,
        ParenthesesMatchingSelection,
        CodeWarningsSelection,
        CodeSemanticsSelection,
Roberto Raggi's avatar
Roberto Raggi committed
486
        UnusedSymbolSelection,
hjk's avatar
hjk committed
487
        FakeVimSelection,
Roberto Raggi's avatar
Roberto Raggi committed
488
        OtherSelection,
489
        SnippetPlaceholderSelection,
490
491
492
493
        NExtraSelectionKinds
    };
    void setExtraSelections(ExtraSelectionKind kind, const QList<QTextEdit::ExtraSelection> &selections);
    QList<QTextEdit::ExtraSelection> extraSelections(ExtraSelectionKind kind) const;
494
    QString extraSelectionTooltip(int pos) const;
con's avatar
con committed
495

496
497
498
499
500
501
    struct BlockRange
    {
        BlockRange() : first(0), last(-1) {}
        BlockRange(int first_position, int last_position)
          : first(first_position), last(last_position)
        {}
con's avatar
con committed
502
503
504
505
506
507
        int first;
        int last;
        inline bool isNull() const { return last < first; }
    };

    // the blocks list must be sorted
508
    void setIfdefedOutBlocks(const QList<BlockRange> &blocks);
con's avatar
con committed
509
510

public slots:
511
    virtual void format();
512
    virtual void rewrapParagraph();
513
514
    virtual void unCommentSelection();
    virtual void setFontSettings(const TextEditor::FontSettings &);
mae's avatar
mae committed
515
    void setFontSettingsIfVisible(const TextEditor::FontSettings &);
con's avatar
con committed
516
517
    virtual void setTabSettings(const TextEditor::TabSettings &);
    virtual void setDisplaySettings(const TextEditor::DisplaySettings &);
518
    virtual void setBehaviorSettings(const TextEditor::BehaviorSettings &);
519
    virtual void setStorageSettings(const TextEditor::StorageSettings &);
con's avatar
con committed
520
521
522
523
524
525
526
527
528

protected:
    bool viewportEvent(QEvent *event);

    void resizeEvent(QResizeEvent *);
    void paintEvent(QPaintEvent *);
    void timerEvent(QTimerEvent *);
    void mouseMoveEvent(QMouseEvent *);
    void mousePressEvent(QMouseEvent *);
529
530
531
    void mouseReleaseEvent(QMouseEvent *);
    void leaveEvent(QEvent *);
    void keyReleaseEvent(QKeyEvent *);
con's avatar
con committed
532

533
public:
534
    // Returns true if key triggers an indent.
con's avatar
con committed
535
    virtual bool isElectricCharacter(const QChar &ch) const;
536
protected:
537
538
539
540
    // Returns the text to complete at the cursor position, or an empty string
    virtual QString autoComplete(QTextCursor &cursor, const QString &text) const;
    // Handles backspace. When returning true, backspace processing is stopped
    virtual bool autoBackspace(QTextCursor &cursor);
541
542
    // Hook to insert special characters on enter. Returns the number of extra blocks inserted.
    virtual int paragraphSeparatorAboutToBeInserted(QTextCursor &cursor);
con's avatar
con committed
543
544
545
546
    // Indent a text block based on previous line. Default does nothing
    virtual void indentBlock(QTextDocument *doc, QTextBlock block, QChar typedChar);
    // Indent at cursor. Calls indentBlock for selection or current line.
    virtual void indent(QTextDocument *doc, const QTextCursor &cursor, QChar typedChar);
mae's avatar
mae committed
547
548
    // Reindent at cursor. Selection will be adjusted according to the indentation change of the first block
    virtual void reindent(QTextDocument *doc, const QTextCursor &cursor);
con's avatar
con committed
549

550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
    virtual bool contextAllowsAutoParentheses(const QTextCursor &cursor, const QString &textToInsert = QString()) const;

    // Returns true if the cursor is inside a comment.
    virtual bool isInComment(const QTextCursor &cursor) const;

    virtual QString insertMatchingBrace(const QTextCursor &tc, const QString &text, const QChar &la, int *skippedChars) const;

    // Returns the text that needs to be inserted
    virtual QString insertParagraphSeparator(const QTextCursor &tc) const;

    static void countBracket(QChar open, QChar close, QChar c, int *errors, int *stillopen);

    static void countBrackets(QTextCursor cursor, int from, int end, QChar open, QChar close,
                              int *errors, int *stillopen);

565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
    struct Link
    {
        Link(const QString &fileName = QString(),
             int line = 0,
             int column = 0)
            : pos(-1)
            , length(-1)
            , fileName(fileName)
            , line(line)
            , column(column)
        {}

        bool isValid() const
        { return !(pos == -1 || length == -1); }

580
581
582
        bool operator==(const Link &other) const
        { return pos == other.pos && length == other.length; }

583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
        int pos;           // Link position
        int length;        // Link length

        QString fileName;  // Target file
        int line;          // Target line
        int column;        // Target column
    };

    /*!
       Reimplement this function to enable code navigation.

       \a resolveTarget is set to true when the target of the link is relevant
       (it isn't until the link is used).
     */
    virtual Link findLinkAt(const QTextCursor &, bool resolveTarget = true);

    /*!
       Reimplement this function if you want to customize the way a link is
Tobias Hunger's avatar
Tobias Hunger committed
601
       opened. Returns whether the link was opened successfully.
602
603
604
     */
    virtual bool openLink(const Link &link);

con's avatar
con committed
605
606
607
608
609
610
611
612
protected slots:
    virtual void slotUpdateExtraAreaWidth();
    virtual void slotModificationChanged(bool);
    virtual void slotUpdateRequest(const QRect &r, int dy);
    virtual void slotCursorPositionChanged();
    virtual void slotUpdateBlockNotify(const QTextBlock &);

signals:
mae's avatar
mae committed
613
614
    void requestFontZoom(int zoom);
    void requestZoomReset();
con's avatar
con committed
615
    void requestBlockUpdate(const QTextBlock &);
616
617
    void requestAutoCompletion(TextEditor::ITextEditable *editor, bool forced);
    void requestQuickFix(TextEditor::ITextEditable *editor);
con's avatar
con committed
618
619
620
621
622

private:
    void indentOrUnindent(bool doIndent);
    void handleHomeKey(bool anchor);
    void handleBackspaceKey();
623
    void moveLineUpDown(bool up);
624
    void copyLineUpDown(bool up);
625
    void saveCurrentCursorPositionForNavigation();
626
    void updateCurrentLineHighlight();
con's avatar
con committed
627

628
629
630
631
632
    void drawFoldingMarker(QPainter *painter, const QPalette &pal,
                           const QRect &rect,
                           bool expanded,
                           bool active,
                           bool hovered) const;
633

con's avatar
con committed
634
    void toggleBlockVisible(const QTextBlock &block);
635
    QRect collapseBox();
con's avatar
con committed
636
637
638

    QTextBlock collapsedBlockAt(const QPoint &pos, QRect *box = 0) const;

639
    void updateLink(QMouseEvent *e);
640
641
    void showLink(const Link &);
    void clearLink();
mae's avatar
mae committed
642

643
644
    void universalHelper(); // test function for development

con's avatar
con committed
645
646
647
    // parentheses matcher
private slots:
    void _q_matchParentheses();
648
    void _q_highlightBlocks();
con's avatar
con committed
649
    void slotSelectionChanged();
650
    void _q_animateUpdate(int position, QPointF lastPos, QRectF rect);
con's avatar
con committed
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
};


class TEXTEDITOR_EXPORT BaseTextEditorEditable
  : public ITextEditable
{
    Q_OBJECT
    friend class BaseTextEditor;
public:
    BaseTextEditorEditable(BaseTextEditor *editor);
    ~BaseTextEditorEditable();

    inline BaseTextEditor *editor() const { return e; }

    // EditorInterface
    inline QWidget *widget() { return e; }
    inline Core::IFile * file() { return e->file(); }
    inline bool createNew(const QString &contents) { return e->createNew(contents); }
    inline bool open(const QString &fileName = QString())
    {
        return e->open(fileName);
    }
    inline QString displayName() const { return e->displayName(); }
    inline void setDisplayName(const QString &title) { e->setDisplayName(title); }

    inline QByteArray saveState() const { return e->saveState(); }
    inline bool restoreState(const QByteArray &state) { return e->restoreState(state); }
con's avatar
con committed
678
    QWidget *toolBar();
con's avatar
con committed
679
680
681
682
683
684

    // ITextEditor
    int find(const QString &string) const;

    int currentLine() const;
    int currentColumn() const;
685
    void gotoLine(int line, int column = 0) { e->gotoLine(line, column); }
con's avatar
con committed
686
687
688
689
690
691
692
693
694
695
696
697
698

    inline int position(
        ITextEditor::PositionOperation posOp = ITextEditor::Current
        , int at = -1) const { return e->position(posOp, at); }
    inline void convertPosition(int pos, int *line, int *column) const { e->convertPosition(pos, line, column); }
    QRect cursorRect(int pos = -1) const;

    QString contents() const;
    QString selectedText() const;
    QString textAt(int pos, int length) const;
    inline QChar characterAt(int pos) const { return e->characterAt(pos); }

    inline void triggerCompletions() { e->triggerCompletions(); } // slot?
Roberto Raggi's avatar
Roberto Raggi committed
699
700
    inline void triggerQuickFix() { e->triggerQuickFix(); } // slot?

con's avatar
con committed
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
    inline ITextMarkable *markableInterface() { return e->markableInterface(); }

    void setContextHelpId(const QString &id) { m_contextHelpId = id; }
    QString contextHelpId() const; // from IContext

    inline void setTextCodec(QTextCodec *codec) { e->setTextCodec(codec); }
    inline QTextCodec *textCodec() const { return e->textCodec(); }


    // ITextEditable
    void remove(int length);
    void insert(const QString &string);
    void replace(int length, const QString &string);
    void setCurPos(int pos);
    void select(int toPos);

private slots:
    void updateCursorPosition();

private:
    BaseTextEditor *e;
    mutable QString m_contextHelpId;
    QToolBar *m_toolBar;
724
    Utils::LineColumnLabel *m_cursorPositionLabel;
con's avatar
con committed
725
726
727
728
729
};

} // namespace TextEditor

#endif // BASETEXTEDITOR_H