forked from KDE/kdiff3
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathdifftextwindow.cpp
More file actions
2168 lines (1859 loc) · 70.9 KB
/
difftextwindow.cpp
File metadata and controls
2168 lines (1859 loc) · 70.9 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
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
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
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
283
284
285
286
287
288
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
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
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
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
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
637
638
639
640
641
642
643
644
645
646
647
648
649
650
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
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
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
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
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
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
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
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* KDiff3 - Text Diff And Merge Tool
*
* SPDX-FileCopyrightText: 2002-2011 Joachim Eibl, joachim.eibl at gmx.de
* SPDX-FileCopyrightText: 2018-2020 Michael Reeves reeves.87@gmail.com
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "difftextwindow.h"
#include "FileNameLineEdit.h"
#include "LineRef.h"
#include "RLPainter.h"
#include "SourceData.h"
#include "TypeUtils.h"
#include "Utils.h"
#include "common.h" // for getAtomic, max3, min3
#include "defmac.h"
#include "kdiff3.h"
#include "Logging.h"
#include "merger.h"
#include "options.h"
#include "progress.h"
#include "selection.h"
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <memory>
#include <utility>
#include <vector>
#include <KLocalizedString>
#include <KMessageBox>
#include <QClipboard>
#include <QDir>
#include <QDragEnterEvent>
#include <QFileDialog>
#include <QLabel>
#include <QLayout>
#include <QLineEdit>
#include <QMenu>
#include <QMimeData>
#include <QPainter>
#include <QPushButton>
#include <QRunnable>
#include <QScrollBar>
#include <QStatusBar>
#include <QTextCodec>
#include <QTextLayout>
#include <QThreadPool>
#include <QToolTip>
#include <QUrl>
#include <QtMath>
QScrollBar* DiffTextWindow::mVScrollBar = nullptr;
QList<RecalcWordWrapRunnable*> DiffTextWindow::s_runnables; //Used in startRunables and recalWordWrap
class RecalcWordWrapRunnable : public QRunnable
{
private:
static QAtomicInt s_runnableCount;
DiffTextWindow* m_pDTW;
int m_visibleTextWidth;
QtSizeType m_cacheIdx;
public:
static QAtomicInt s_maxNofRunnables;
RecalcWordWrapRunnable(DiffTextWindow* p, int visibleTextWidth, QtSizeType cacheIdx)
: m_pDTW(p), m_visibleTextWidth(visibleTextWidth), m_cacheIdx(cacheIdx)
{
setAutoDelete(true);
s_runnableCount.fetchAndAddOrdered(1);
}
void run() override
{
m_pDTW->recalcWordWrapHelper(0, m_visibleTextWidth, m_cacheIdx);
int newValue = s_runnableCount.fetchAndAddOrdered(-1) - 1;
g_pProgressDialog->setCurrent(s_maxNofRunnables - getAtomic(s_runnableCount));
if(newValue == 0)
{
Q_EMIT m_pDTW->finishRecalcWordWrap(m_visibleTextWidth);
}
}
};
QAtomicInt RecalcWordWrapRunnable::s_runnableCount = 0;
QAtomicInt RecalcWordWrapRunnable::s_maxNofRunnables = 0;
class WrapLineCacheData
{
public:
WrapLineCacheData() = default;
WrapLineCacheData(int d3LineIdx, int textStart, int textLength)
: m_d3LineIdx(d3LineIdx), m_textStart(textStart), m_textLength(textLength) {}
[[nodiscard]] qint32 d3LineIdx() const { return m_d3LineIdx; }
[[nodiscard]] qint32 textStart() const { return m_textStart; }
[[nodiscard]] qint32 textLength() const { return m_textLength; }
private:
qint32 m_d3LineIdx = 0;
qint32 m_textStart = 0;
qint32 m_textLength = 0;
};
class DiffTextWindowData
{
public:
explicit DiffTextWindowData(DiffTextWindow* p)
{
m_pDiffTextWindow = p;
#if defined(Q_OS_WIN)
m_eLineEndStyle = eLineEndStyleDos;
#else
m_eLineEndStyle = eLineEndStyleUnix;
#endif
}
QString getString(LineIndex d3lIdx);
QString getLineString(int line);
void writeLine(
RLPainter& p, const LineData* pld,
const DiffList* pLineDiff1, const DiffList* pLineDiff2, const LineRef& line,
const ChangeFlags whatChanged, const ChangeFlags whatChanged2, const LineRef& srcLineIdx,
int wrapLineOffset, int wrapLineLength, bool bWrapLine, const QRect& invalidRect);
void draw(RLPainter& p, const QRect& invalidRect, const int beginLine, const LineRef& endLine);
void myUpdate(int afterMilliSecs);
[[nodiscard]] int leftInfoWidth() const { return 4 + m_lineNumberWidth; } // Number of information columns on left side
int convertLineOnScreenToLineInSource(int lineOnScreen, e_CoordType coordType, bool bFirstLine);
void prepareTextLayout(QTextLayout& textLayout, int visibleTextWidth = -1);
[[nodiscard]] bool isThreeWay() const { return KDiff3App::isTripleDiff(); };
const QString& getFileName() { return m_filename; }
const Diff3LineVector* getDiff3LineVector() { return mDiff3LineVector; }
const QSharedPointer<Options>& getOptions() { return m_pOptions; }
private:
//TODO: Remove friend classes after creating accessors. Please don't add new classes here
friend DiffTextWindow;
DiffTextWindow* m_pDiffTextWindow;
QTextCodec* m_pTextCodec = nullptr;
e_LineEndStyle m_eLineEndStyle;
std::shared_ptr<LineDataVector> m_pLineData;
LineCount m_size = 0;
QString m_filename;
bool m_bWordWrap = false;
int m_delayedDrawTimer = 0;
const Diff3LineVector* mDiff3LineVector = nullptr;
Diff3WrapLineVector m_diff3WrapLineVector;
const ManualDiffHelpList* m_pManualDiffHelpList = nullptr;
QList<QVector<WrapLineCacheData>> m_wrapLineCacheList;
QSharedPointer<Options> m_pOptions;
QColor m_cThis;
QColor m_cDiff1;
QColor m_cDiff2;
QColor m_cDiffBoth;
int m_fastSelectorLine1 = 0;
int m_fastSelectorNofLines = 0;
e_SrcSelector m_winIdx = e_SrcSelector::None;
int m_firstLine = 0;
int m_oldFirstLine = -1;
int m_horizScrollOffset = 0;
int m_lineNumberWidth = 0;
QAtomicInt m_maxTextWidth = -1;
Selection m_selection;
int m_scrollDeltaX = 0;
int m_scrollDeltaY = 0;
bool m_bMyUpdate = false;
bool m_bSelectionInProgress = false;
QPoint m_lastKnownMousePos;
QSharedPointer<SourceData> sourceData;
};
void DiffTextWindow::setSourceData(const QSharedPointer<SourceData>& inData) { d->sourceData = inData; }
bool DiffTextWindow::isThreeWay() const { return d->isThreeWay(); };
const QString& DiffTextWindow::getFileName() const { return d->getFileName(); }
e_SrcSelector DiffTextWindow::getWindowIndex() const { return d->m_winIdx; };
const QString DiffTextWindow::getEncodingDisplayString() const { return d->m_pTextCodec != nullptr ? QLatin1String(d->m_pTextCodec->name()) : QString(); }
e_LineEndStyle DiffTextWindow::getLineEndStyle() const { return d->m_eLineEndStyle; }
const Diff3LineVector* DiffTextWindow::getDiff3LineVector() const { return d->getDiff3LineVector(); }
qint32 DiffTextWindow::getLineNumberWidth() const { return (int)floor(log10((double)std::max(d->m_size, 1))) + 1; }
DiffTextWindow::DiffTextWindow(DiffTextWindowFrame* pParent,
const QSharedPointer<Options>& pOptions,
e_SrcSelector winIdx,
KDiff3App &app)
: QWidget(pParent)
, m_app(app)
{
setObjectName(QString("DiffTextWindow%1").arg((int)winIdx));
setAttribute(Qt::WA_OpaquePaintEvent);
setUpdatesEnabled(false);
d = std::make_unique<DiffTextWindowData>(this);
setFocusPolicy(Qt::ClickFocus);
setAcceptDrops(true);
d->m_pOptions = pOptions;
init(QString(""), nullptr, d->m_eLineEndStyle, nullptr, 0, nullptr, nullptr);
setMinimumSize(QSize(20, 20));
setUpdatesEnabled(true);
d->m_bWordWrap = false;
d->m_winIdx = winIdx;
setFont(d->getOptions()->defaultFont());
}
DiffTextWindow::~DiffTextWindow() = default;
void DiffTextWindow::init(
const QString& filename,
QTextCodec* pTextCodec,
e_LineEndStyle eLineEndStyle,
const std::shared_ptr<LineDataVector> &pLineData,
LineCount size,
const Diff3LineVector* pDiff3LineVector,
const ManualDiffHelpList* pManualDiffHelpList)
{
reset();
d->m_filename = filename;
d->m_pLineData = pLineData;
d->m_size = size;
d->mDiff3LineVector = pDiff3LineVector;
d->m_diff3WrapLineVector.clear();
d->m_pManualDiffHelpList = pManualDiffHelpList;
d->m_firstLine = 0;
d->m_oldFirstLine = -1;
d->m_horizScrollOffset = 0;
d->m_scrollDeltaX = 0;
d->m_scrollDeltaY = 0;
d->m_bMyUpdate = false;
d->m_fastSelectorLine1 = 0;
d->m_fastSelectorNofLines = 0;
d->m_lineNumberWidth = 0;
d->m_maxTextWidth = -1;
d->m_pTextCodec = pTextCodec;
d->m_eLineEndStyle = eLineEndStyle;
update();
}
void DiffTextWindow::setupConnections(const KDiff3App* app)
{
assert(qobject_cast<DiffTextWindowFrame*>(parent()) != nullptr);
chk_connect(this, &DiffTextWindow::firstLineChanged, dynamic_cast<DiffTextWindowFrame*>(parent()), &DiffTextWindowFrame::setFirstLine);
chk_connect(this, &DiffTextWindow::newSelection, app, &KDiff3App::slotSelectionStart);
chk_connect(this, &DiffTextWindow::selectionEnd, app, &KDiff3App::slotSelectionEnd);
chk_connect(this, &DiffTextWindow::scrollDiffTextWindow, app, &KDiff3App::scrollDiffTextWindow);
chk_connect_q(this, &DiffTextWindow::finishRecalcWordWrap, app, &KDiff3App::slotFinishRecalcWordWrap);
chk_connect(this, &DiffTextWindow::finishDrop, app, &KDiff3App::slotFinishDrop);
chk_connect(this, &DiffTextWindow::statusBarMessage, app, &KDiff3App::slotStatusMsg);
chk_connect(app, &KDiff3App::showWhiteSpaceToggled, this, static_cast<void (DiffTextWindow::*)(void)>(&DiffTextWindow::update));
chk_connect(app, &KDiff3App::showLineNumbersToggled, this, static_cast<void (DiffTextWindow::*)(void)>(&DiffTextWindow::update));
chk_connect(app, &KDiff3App::doRefresh, this, &DiffTextWindow::slotRefresh);
chk_connect(app, &KDiff3App::selectAll, this, &DiffTextWindow::slotSelectAll);
chk_connect(app, &KDiff3App::copy, this, &DiffTextWindow::slotCopy);
connections.push_back(KDiff3App::allowCopy.connect(boost::bind(&DiffTextWindow::canCopy, this)));
connections.push_back(KDiff3App::getSelection.connect(boost::bind(&DiffTextWindow::getSelection, this)));
}
void DiffTextWindow::reset()
{
d->m_pLineData = nullptr;
d->m_size = 0;
d->mDiff3LineVector = nullptr;
d->m_filename = "";
d->m_diff3WrapLineVector.clear();
}
void DiffTextWindow::slotRefresh()
{
setFont(d->getOptions()->defaultFont());
update();
}
void DiffTextWindow::slotSelectAll()
{
LineRef l;
int p = 0; // needed as dummy return values
if(hasFocus())
{
setSelection(0, 0, getNofLines(), 0, l, p);
}
}
void DiffTextWindow::slotCopy()
{
if(!hasFocus())
return;
const QString curSelection = getSelection();
if(!curSelection.isEmpty())
{
QApplication::clipboard()->setText(curSelection, QClipboard::Clipboard);
}
}
void DiffTextWindow::setPaintingAllowed(bool bAllowPainting)
{
if(updatesEnabled() != bAllowPainting)
{
setUpdatesEnabled(bAllowPainting);
if(bAllowPainting)
update();
}
}
void DiffTextWindow::dragEnterEvent(QDragEnterEvent* dragEnterEvent)
{
dragEnterEvent->setAccepted(dragEnterEvent->mimeData()->hasUrls() || dragEnterEvent->mimeData()->hasText());
}
void DiffTextWindow::dropEvent(QDropEvent* dropEvent)
{
dropEvent->accept();
if(dropEvent->mimeData()->hasUrls())
{
QList<QUrl> urlList = dropEvent->mimeData()->urls();
if(m_app.canContinue() && !urlList.isEmpty())
{
QString filename = Utils::urlToString(urlList.first());
d->sourceData->setFilename(filename);
Q_EMIT finishDrop();
}
}
else if(dropEvent->mimeData()->hasText())
{
QString text = dropEvent->mimeData()->text();
if(m_app.canContinue())
{
QString error;
error = d->sourceData->setData(text);
if(!error.isEmpty())
{
KMessageBox::error(this, error);
}
Q_EMIT finishDrop();
}
}
}
void DiffTextWindow::printWindow(RLPainter& painter, const QRect& view, const QString& headerText, int line, const LineCount linesPerPage, const QColor& fgColor)
{
QRect clipRect = view;
clipRect.setTop(0);
painter.setClipRect(clipRect);
painter.translate(view.left(), 0);
QFontMetrics fm = painter.fontMetrics();
{
int lineHeight = fm.height() + fm.ascent();
const QRectF headerRect(0, 5, view.width(), 3 * (lineHeight));
QTextOption options;
options.setWrapMode(QTextOption::WordWrap);
// TODO: transition to Qt::LayoutDirectionAuto
options.setTextDirection(Qt::LeftToRight);
static_cast<QPainter&>(painter).drawText(headerRect, headerText, options);
painter.setPen(fgColor);
painter.drawLine(0, view.top() - 2, view.width(), view.top() - 2);
}
painter.translate(0, view.top());
print(painter, view, line, linesPerPage);
painter.resetTransform();
}
void DiffTextWindow::setFirstLine(QtNumberType firstLine)
{
int fontHeight = fontMetrics().lineSpacing();
LineRef newFirstLine = std::max(0, firstLine);
int deltaY = fontHeight * (d->m_firstLine - newFirstLine);
d->m_firstLine = newFirstLine;
if(d->m_bSelectionInProgress && d->m_selection.isValidFirstLine())
{
LineRef line;
int pos;
convertToLinePos(d->m_lastKnownMousePos.x(), d->m_lastKnownMousePos.y(), line, pos);
d->m_selection.end(line, pos);
update();
}
else
{
scroll(0, deltaY);
}
Q_EMIT firstLineChanged(d->m_firstLine);
}
int DiffTextWindow::getFirstLine()
{
return d->m_firstLine;
}
void DiffTextWindow::setHorizScrollOffset(int horizScrollOffset)
{
int fontWidth = Utils::getHorizontalAdvance(fontMetrics(), '0');
int xOffset = d->leftInfoWidth() * fontWidth;
int deltaX = d->m_horizScrollOffset - std::max(0, horizScrollOffset);
d->m_horizScrollOffset = std::max(0, horizScrollOffset);
if(d->m_bSelectionInProgress && d->m_selection.isValidFirstLine())
{
LineRef line;
int pos;
convertToLinePos(d->m_lastKnownMousePos.x(), d->m_lastKnownMousePos.y(), line, pos);
d->m_selection.end(line, pos);
}
else
{
QRect r(xOffset, 0, width(), height());
if(d->getOptions()->m_bRightToLeftLanguage)
{
deltaX = -deltaX;
r = QRect(width() - xOffset - 2, 0, -(width()), height()).normalized();
}
scroll(deltaX, 0, r);
}
update();
}
int DiffTextWindow::getMaxTextWidth()
{
if(d->m_bWordWrap)
{
return getVisibleTextAreaWidth();
}
else if(getAtomic(d->m_maxTextWidth) < 0)
{
d->m_maxTextWidth = 0;
QTextLayout textLayout(QString(), font(), this);
for(int i = 0; i < d->m_size; ++i)
{
textLayout.clearLayout();
textLayout.setText(d->getString(i));
d->prepareTextLayout(textLayout);
if(textLayout.maximumWidth() > getAtomic(d->m_maxTextWidth))
d->m_maxTextWidth = qCeil(textLayout.maximumWidth());
}
}
return getAtomic(d->m_maxTextWidth);
}
//FIXME:not 64-bit size safe
LineCount DiffTextWindow::getNofLines()
{
return d->m_bWordWrap ? d->m_diff3WrapLineVector.size() : d->getDiff3LineVector()->size();
}
LineIndex DiffTextWindow::convertLineToDiff3LineIdx(LineRef line)
{
if(line.isValid() && d->m_bWordWrap && d->m_diff3WrapLineVector.size() > 0)
return d->m_diff3WrapLineVector[std::min((LineRef::LineType)line, d->m_diff3WrapLineVector.size() - 1)].diff3LineIndex;
else
return line;
}
LineRef DiffTextWindow::convertDiff3LineIdxToLine(LineIndex d3lIdx)
{
if(d->m_bWordWrap && d->getDiff3LineVector() != nullptr && d->getDiff3LineVector()->size() > 0)
return (*d->getDiff3LineVector())[std::min(d3lIdx, d->getDiff3LineVector()->size() - 1)]->sumLinesNeededForDisplay();
else
return d3lIdx;
}
/** Returns a line number where the linerange [line, line+nofLines] can
be displayed best. If it fits into the currently visible range then
the returned value is the current firstLine.
*/
int getBestFirstLine(int line, int nofLines, int firstLine, int visibleLines)
{
int newFirstLine = firstLine;
if(line < firstLine || line + nofLines + 2 > firstLine + visibleLines)
{
if(nofLines > visibleLines || nofLines <= (2 * visibleLines / 3 - 1))
newFirstLine = line - visibleLines / 3;
else
newFirstLine = line - (visibleLines - nofLines);
}
return newFirstLine;
}
void DiffTextWindow::setFastSelectorRange(int line1, int nofLines)
{
d->m_fastSelectorLine1 = line1;
d->m_fastSelectorNofLines = nofLines;
if(isVisible())
{
int newFirstLine = getBestFirstLine(
convertDiff3LineIdxToLine(d->m_fastSelectorLine1),
convertDiff3LineIdxToLine(d->m_fastSelectorLine1 + d->m_fastSelectorNofLines) - convertDiff3LineIdxToLine(d->m_fastSelectorLine1),
d->m_firstLine,
getNofVisibleLines());
if(newFirstLine != d->m_firstLine)
{
scrollVertically(newFirstLine - d->m_firstLine);
}
update();
}
}
/*
Takes the line number estimated from mouse position and converts it to the actual line in
the file. Then sets the status message accordingly.
emits lineClicked signal.
*/
void DiffTextWindow::showStatusLine(const LineRef lineFromPos)
{
int d3lIdx = convertLineToDiff3LineIdx(lineFromPos);
if(d->getDiff3LineVector() != nullptr && d3lIdx >= 0 && d3lIdx < (int)d->getDiff3LineVector()->size())
{
const Diff3Line* pD3l = (*d->getDiff3LineVector())[d3lIdx];
if(pD3l != nullptr)
{
LineRef actualLine = pD3l->getLineInFile(d->m_winIdx);
QString message;
if(actualLine.isValid())
message = i18n("File %1: Line %2", d->m_filename, actualLine + 1);
else
message = i18n("File %1: Line not available", d->m_filename);
Q_EMIT statusBarMessage(message);
Q_EMIT lineClicked(d->m_winIdx, actualLine);
}
}
}
void DiffTextWindow::scrollVertically(QtNumberType deltaY)
{
mVScrollBar->setValue(mVScrollBar->value() + deltaY);
}
void DiffTextWindow::focusInEvent(QFocusEvent* e)
{
Q_EMIT gotFocus();
QWidget::focusInEvent(e);
}
void DiffTextWindow::mousePressEvent(QMouseEvent* e)
{
qCInfo(kdiffDiffTextWindow) << "mousePressEvent triggered";
if(e->button() == Qt::LeftButton)
{
LineRef line;
int pos;
convertToLinePos(e->x(), e->y(), line, pos);
qCInfo(kdiffDiffTextWindow) << "Left Button detected,";
qCDebug(kdiffDiffTextWindow) << "line = " << line << ", pos = " << pos;
int fontWidth = Utils::getHorizontalAdvance(fontMetrics(), '0');
int xOffset = d->leftInfoWidth() * fontWidth;
if((!d->getOptions()->m_bRightToLeftLanguage && e->x() < xOffset) || (d->getOptions()->m_bRightToLeftLanguage && e->x() > width() - xOffset))
{
Q_EMIT setFastSelectorLine(convertLineToDiff3LineIdx(line));
d->m_selection.reset(); // Disable current d->m_selection
}
else
{ // Selection
resetSelection();
d->m_selection.start(line, pos);
d->m_selection.end(line, pos);
d->m_bSelectionInProgress = true;
d->m_lastKnownMousePos = e->pos();
showStatusLine(line);
}
}
}
void DiffTextWindow::mouseDoubleClickEvent(QMouseEvent* e)
{
qCInfo(kdiffDiffTextWindow) << "Mouse Double Clicked";
qCDebug(kdiffDiffTextWindow) << "d->m_lastKnownMousePos = " << d->m_lastKnownMousePos << ", e->pos() = " << e->pos();
qCDebug(kdiffDiffTextWindow) << "d->m_bSelectionInProgress = " << d->m_bSelectionInProgress;
d->m_bSelectionInProgress = false;
d->m_lastKnownMousePos = e->pos();
if(e->button() == Qt::LeftButton)
{
LineRef line;
int pos;
convertToLinePos(e->x(), e->y(), line, pos);
qCInfo(kdiffDiffTextWindow) << "Left Button detected,";
qCDebug(kdiffDiffTextWindow) << "line = " << line << ", pos = " << pos;
// Get the string data of the current line
QString s;
if(d->m_bWordWrap)
{
if(!line.isValid() || line >= (int)d->m_diff3WrapLineVector.size())
return;
const Diff3WrapLine& d3wl = d->m_diff3WrapLineVector[line];
s = d->getString(d3wl.diff3LineIndex).mid(d3wl.wrapLineOffset, d3wl.wrapLineLength);
}
else
{
if(!line.isValid() || line >= (int)d->getDiff3LineVector()->size())
return;
s = d->getString(line);
}
if(!s.isEmpty())
{
int pos1, pos2;
Utils::calcTokenPos(s, pos, pos1, pos2);
resetSelection();
d->m_selection.start(line, pos1);
d->m_selection.end(line, pos2);
update();
// Q_EMIT d->m_selectionEnd() happens in the mouseReleaseEvent.
showStatusLine(line);
}
}
}
void DiffTextWindow::mouseReleaseEvent(QMouseEvent* e)
{
qCInfo(kdiffDiffTextWindow) << "Mouse Released";
qCDebug(kdiffDiffTextWindow) << "d->m_lastKnownMousePos = " << d->m_lastKnownMousePos << ", e->pos() = " << e->pos();
qCDebug(kdiffDiffTextWindow) << "d->m_bSelectionInProgress = " << d->m_bSelectionInProgress;
d->m_bSelectionInProgress = false;
d->m_lastKnownMousePos = e->pos();
if(d->m_delayedDrawTimer)
killTimer(d->m_delayedDrawTimer);
d->m_delayedDrawTimer = 0;
if(d->m_selection.isValidFirstLine())
{
qCInfo(kdiffDiffTextWindow) << "Ending selection.";
Q_EMIT selectionEnd();
}
d->m_scrollDeltaX = 0;
d->m_scrollDeltaY = 0;
}
void DiffTextWindow::mouseMoveEvent(QMouseEvent* e)
{//Handles selection highlighting.
LineRef line;
int pos;
qCInfo(kdiffDiffTextWindow) << "Mouse Moved";
qCDebug(kdiffDiffTextWindow) << "d->m_lastKnownMousePos = " << d->m_lastKnownMousePos << ", e->pos() = " << e->pos();
convertToLinePos(e->x(), e->y(), line, pos);
d->m_lastKnownMousePos = e->pos();
qCDebug(kdiffDiffTextWindow) << "line = " << line << ", pos = " << pos;
if(d->m_selection.isValidFirstLine())
{
qCDebug(kdiffDiffTextWindow) << "d->m_selection.isValidFirstLine() = " << d->m_selection.isValidFirstLine();
d->m_selection.end(line, pos);
showStatusLine(line);
// Scroll because mouse moved out of the window
const QFontMetrics& fm = fontMetrics();
int fontWidth = Utils::getHorizontalAdvance(fm, '0');
int deltaX = 0;
int deltaY = 0;
if(!d->getOptions()->m_bRightToLeftLanguage)
{
if(e->x() < d->leftInfoWidth() * fontWidth) deltaX = -1 - abs(e->x() - d->leftInfoWidth() * fontWidth) / fontWidth;
if(e->x() > width()) deltaX = +1 + abs(e->x() - width()) / fontWidth;
}
else
{
if(e->x() > width() - 1 - d->leftInfoWidth() * fontWidth) deltaX = +1 + abs(e->x() - (width() - 1 - d->leftInfoWidth() * fontWidth)) / fontWidth;
if(e->x() < fontWidth) deltaX = -1 - abs(e->x() - fontWidth) / fontWidth;
}
if(e->y() < 0) deltaY = -1 - (int)std::pow<int, int>(e->y(), 2) / (int)std::pow(fm.lineSpacing(), 2);
if(e->y() > height()) deltaY = 1 + (int)std::pow(e->y() - height(), 2) / (int)std::pow(fm.lineSpacing(), 2);
if((deltaX != 0 && d->m_scrollDeltaX != deltaX) || (deltaY != 0 && d->m_scrollDeltaY != deltaY))
{
d->m_scrollDeltaX = deltaX;
d->m_scrollDeltaY = deltaY;
Q_EMIT scrollDiffTextWindow(deltaX, deltaY);
if(d->m_delayedDrawTimer)
killTimer(d->m_delayedDrawTimer);
d->m_delayedDrawTimer = startTimer(50);
}
else
{
d->m_scrollDeltaX = deltaX;
d->m_scrollDeltaY = deltaY;
d->myUpdate(0);
}
}
}
void DiffTextWindow::wheelEvent(QWheelEvent* pWheelEvent)
{
QPoint delta = pWheelEvent->angleDelta();
//Block diagonal scrolling easily generated unintentionally with track pads.
if(delta.y() != 0 && abs(delta.y()) > abs(delta.x()) && mVScrollBar != nullptr)
{
pWheelEvent->accept();
QCoreApplication::postEvent(mVScrollBar, new QWheelEvent(*pWheelEvent));
}
}
void DiffTextWindowData::myUpdate(int afterMilliSecs)
{
if(m_delayedDrawTimer)
m_pDiffTextWindow->killTimer(m_delayedDrawTimer);
m_bMyUpdate = true;
m_delayedDrawTimer = m_pDiffTextWindow->startTimer(afterMilliSecs);
}
void DiffTextWindow::timerEvent(QTimerEvent*)
{
killTimer(d->m_delayedDrawTimer);
d->m_delayedDrawTimer = 0;
if(d->m_bMyUpdate)
{
int fontHeight = fontMetrics().lineSpacing();
if(d->m_selection.getOldLastLine().isValid())
{
int lastLine;
int firstLine;
if(d->m_selection.getOldFirstLine().isValid())
{
firstLine = min3(d->m_selection.getOldFirstLine(), d->m_selection.getLastLine(), d->m_selection.getOldLastLine());
lastLine = max3(d->m_selection.getOldFirstLine(), d->m_selection.getLastLine(), d->m_selection.getOldLastLine());
}
else
{
firstLine = std::min(d->m_selection.getLastLine(), d->m_selection.getOldLastLine());
lastLine = std::max(d->m_selection.getLastLine(), d->m_selection.getOldLastLine());
}
int y1 = (firstLine - d->m_firstLine) * fontHeight;
int y2 = std::min(height(), (lastLine - d->m_firstLine + 1) * fontHeight);
if(y1 < height() && y2 > 0)
{
QRect invalidRect = QRect(0, y1 - 1, width(), y2 - y1 + fontHeight); // Some characters in exotic exceed the regular bottom.
update(invalidRect);
}
}
d->m_bMyUpdate = false;
}
if(d->m_scrollDeltaX != 0 || d->m_scrollDeltaY != 0)
{
d->m_selection.end(d->m_selection.getLastLine() + d->m_scrollDeltaY, d->m_selection.getLastPos() + d->m_scrollDeltaX);
Q_EMIT scrollDiffTextWindow(d->m_scrollDeltaX, d->m_scrollDeltaY);
killTimer(d->m_delayedDrawTimer);
d->m_delayedDrawTimer = startTimer(50);
}
}
void DiffTextWindow::resetSelection()
{
qCInfo(kdiffDiffTextWindow) << "Resetting Selection";
d->m_selection.reset();
update();
}
void DiffTextWindow::convertToLinePos(int x, int y, LineRef& line, int& pos)
{
const QFontMetrics& fm = fontMetrics();
int fontHeight = fm.lineSpacing();
int yOffset = -d->m_firstLine * fontHeight;
line = (y - yOffset) / fontHeight;
if(line.isValid() && (!d->getOptions()->wordWrapOn() || line < d->m_diff3WrapLineVector.count()))
{
QString s = d->getLineString(line);
QTextLayout textLayout(s, font(), this);
d->prepareTextLayout(textLayout);
pos = textLayout.lineAt(0).xToCursor(x - textLayout.position().x());
}
else
pos = -1;
}
class FormatRangeHelper
{
private:
QFont m_font;
QPen m_pen;
QColor m_background;
int m_currentPos;
QVector<QTextLayout::FormatRange> m_formatRanges;
public:
inline operator QVector<QTextLayout::FormatRange>() { return m_formatRanges; }
FormatRangeHelper()
{
m_pen = QColor(Qt::black);
m_background = QColor(Qt::white);
m_currentPos = 0;
}
void setFont(const QFont& f)
{
m_font = f;
}
void setPen(const QPen& pen)
{
m_pen = pen;
}
void setBackground(const QColor& background)
{
m_background = background;
}
void next()
{
if(m_formatRanges.isEmpty() || m_formatRanges.back().format.foreground().color() != m_pen.color() || m_formatRanges.back().format.background().color() != m_background)
{
QTextLayout::FormatRange fr;
fr.length = 1;
fr.start = m_currentPos;
fr.format.setForeground(m_pen.color());
fr.format.setBackground(m_background);
m_formatRanges.append(fr);
}
else
{
++m_formatRanges.back().length;
}
++m_currentPos;
}
};
void DiffTextWindowData::prepareTextLayout(QTextLayout& textLayout, int visibleTextWidth)
{
QTextOption textOption;
textOption.setTabStopDistance(QFontMetricsF(m_pDiffTextWindow->font()).horizontalAdvance(' ') * m_pOptions->m_tabSize);
if(m_pOptions->m_bShowWhiteSpaceCharacters)
textOption.setFlags(QTextOption::ShowTabsAndSpaces);
if(m_pOptions->m_bRightToLeftLanguage)
{
textOption.setAlignment(Qt::AlignRight); // only relevant for multi line text layout
}
if(visibleTextWidth >= 0)
textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
textLayout.setTextOption(textOption);
if(m_pOptions->m_bShowWhiteSpaceCharacters)
{
// This additional format is only necessary for the tab arrow
QVector<QTextLayout::FormatRange> formats;
QTextLayout::FormatRange formatRange;
formatRange.start = 0;
formatRange.length = textLayout.text().length();
formatRange.format.setFont(m_pDiffTextWindow->font());
formats.append(formatRange);
textLayout.setFormats(formats);
}
textLayout.beginLayout();
int leading = m_pDiffTextWindow->fontMetrics().leading();
int height = 0;
int fontWidth = Utils::getHorizontalAdvance(m_pDiffTextWindow->fontMetrics(), '0');
int xOffset = leftInfoWidth() * fontWidth - m_horizScrollOffset;
int textWidth = visibleTextWidth;
if(textWidth < 0)
textWidth = m_pDiffTextWindow->width() - xOffset;
int indentation = 0;
while(true)
{
QTextLine line = textLayout.createLine();
if(!line.isValid())
break;
height += leading;
//if ( !bFirstLine )
// indentation = Utils::getHorizontalAdvance(m_pDiffTextWindow->fontMetrics(), (' ')) * m_pOptions->m_tabSize;
if(visibleTextWidth >= 0)
{
line.setLineWidth(visibleTextWidth - indentation);
line.
3E26
setPosition(QPointF(indentation, height));
height += qCeil(line.height());
//bFirstLine = false;
}
else // only one line
{
line.setPosition(QPointF(indentation, height));
break;
}
}
textLayout.endLayout();
if(m_pOptions->m_bRightToLeftLanguage)
textLayout.setPosition(QPointF(textWidth - textLayout.maximumWidth(), 0));
else
textLayout.setPosition(QPointF(xOffset, 0));
}
/*
Don't try to use invalid rect to block drawing of lines based on there apparent horizontal dementions.
This does not always work for very long lines being scrolled horizontally. (Causes blanking of diff text area)
*/
void DiffTextWindowData::writeLine(
RLPainter& p,
const LineData* pld,
const DiffList* pLineDiff1,
const DiffList* pLineDiff2,
const LineRef& line,
const ChangeFlags whatChanged,
const ChangeFlags whatChanged2,
const LineRef& srcLineIdx,
int wrapLineOffset,
int wrapLineLength,
bool bWrapLine,
const QRect& invalidRect)
{
QFont normalFont = p.font();
const QFontMetrics& fm = p.fontMetrics();
int fontHeight = fm.lineSpacing();
int fontAscent = fm.ascent();
int fontWidth = Utils::getHorizontalAdvance(fm, '0');
int xOffset = 0;
int yOffset = (line - m_firstLine) * fontHeight;
int fastSelectorLine1 = m_pDiffTextWindow->convertDiff3LineIdxToLine(m_fastSelectorLine1);
int fastSelectorLine2 = m_pDiffTextWindow->convertDiff3LineIdxToLine(m_fastSelectorLine1 + m_fastSelectorNofLines) - 1;
bool bFastSelectionRange = (line >= fastSelectorLine1 && line <= fastSelectorLine2);
QColor bgColor = m_pOptions->backgroundColor();
QColor diffBgColor = m_pOptions->diffBackgroundColor();