MailJDTourDownloadDocsQualityTestsCoverage

Which source lines and branches the tests execute. Lines 91.5 %, branches 75.0 % (minimum 85 % and 72 %). main @ 399ffe3d · 21 October 2026 · pipeline 7238.

GCC Code Coverage Report

Directory: src/
Coverage: low: ≥ 0% medium: ≥ 75.0% high: ≥ 90.0%
Coverage Exec / Excl / Total
Lines: 97.4% 184 / 0 / 189
Functions: 100.0% 18 / 0 / 18
Branches: 80.2% 291 / 0 / 363
presentation/ComposeHighlighter.cpp
Line Branch Exec Source
1 #include "ComposeHighlighter.h"
2
3 #include "data/ComposeDocumentFormat.h"
4
5 #include <QElapsedTimer>
6 #include <QRegularExpression>
7 #include <QTextBlock>
8 #include <QTextBoundaryFinder>
9 #include <QTextCursor>
10 #include <QTextDocument>
11 #include <QTextTable>
12 #include <cmath>
13
14 using namespace ComposeDocumentFormat;
15
16 namespace {
17
18 64 qreal relativeLuminance(const QColor &color) {
19 192 const auto channel = [](qreal value) {
20
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 192 return value <= 0.03928 ? value / 12.92 : std::pow((value + 0.055) / 1.055, 2.4);
21 };
22 64 const QColor rgb = color.toRgb();
23 64 return 0.2126 * channel(rgb.redF()) + 0.7152 * channel(rgb.greenF()) + 0.0722 * channel(rgb.blueF());
24 }
25
26 } // namespace
27
28
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 197 ComposeHighlighter::ComposeHighlighter(QTextDocument *document) : QSyntaxHighlighter(document) {}
29
30 160 void ComposeHighlighter::setPalette(const Palette &palette) {
31 160 m_palette = palette;
32 160 rehighlightAll();
33 160 }
34
35 160 void ComposeHighlighter::setBaseFontPointSize(qreal points) {
36
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 160 if (qFuzzyCompare(m_basePoints, points)) return;
37 160 m_basePoints = points;
38 160 rehighlightAll();
39 }
40
41 226 void ComposeHighlighter::setSpellCheck(SpellCheck check, const QString &language) {
42 226 m_spellCheck = std::move(check);
43 226 m_language = language;
44 226 m_misspellings.clear();
45 226 rehighlightAll();
46 226 }
47
48 547 void ComposeHighlighter::rehighlightAll() {
49 547 QTextDocument *doc = document();
50
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 547 if (!doc || doc->characterCount() <= GraduallyFromCharacters) {
51
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 546 m_next = QTextCursor();
52 546 rehighlight();
53 546 return;
54 }
55 1 const bool running = !m_next.isNull();
56
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 1 m_next = QTextCursor(doc); // (again) from the first block
57
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 1 if (!running) rehighlightSlice();
58 }
59
60 176 void ComposeHighlighter::rehighlightSlice() {
61
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 176 if (m_next.isNull() || m_next.document() != document()) {
62 ✗ m_next = QTextCursor();
63 1 return;
64 }
65 176 QElapsedTimer slice;
66 176 slice.start();
67
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 176 QTextBlock block = m_next.block();
68
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 4176 while (block.isValid() && slice.elapsed() < SliceBudgetMs) {
69
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 4000 rehighlightBlock(block);
70
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 4000 block = block.next();
71 }
72
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 176 if (!block.isValid()) {
73
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 1 m_next = QTextCursor();
74 1 return;
75 }
76
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 175 m_next.setPosition(block.position());
77
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 175 QTimer::singleShot(0, this, &ComposeHighlighter::rehighlightSlice);
78 }
79
80 439 void ComposeHighlighter::setCaret(int position, bool typing) {
81 439 const bool wasTyping = m_typing;
82 439 m_caret = position;
83 439 m_typing = typing;
84
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 439 if (wasTyping && !typing && document()) rehighlightBlock(document()->findBlock(position));
85 439 }
86
87 28 void ComposeHighlighter::typingPaused() {
88
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 28 if (!m_typing) return;
89 28 m_typing = false;
90
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 28 if (document() && m_caret >= 0) rehighlightBlock(document()->findBlock(m_caret));
91 }
92
93 31 qreal ComposeHighlighter::contrast(const QColor &a, const QColor &b) {
94 31 const qreal la = relativeLuminance(a), lb = relativeLuminance(b);
95 31 return (qMax(la, lb) + 0.05) / (qMin(la, lb) + 0.05);
96 }
97
98 3 QColor ComposeHighlighter::readableOn(const QColor &color, const QColor &surface, qreal ratio) {
99
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 3 if (!color.isValid() || !surface.isValid() || contrast(color, surface) >= ratio) return color;
100 2 const bool darkSurface = relativeLuminance(surface) < 0.5;
101 2 QColor hsl = color.toHsl();
102 // Shift lightness away from the surface in small steps.
103
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 26 for (int step = 0; step < 40; ++step) {
104
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 26 const qreal lightness = qBound(0.0, hsl.lightnessF() + (darkSurface ? 0.025 : -0.025), 1.0);
105
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 26 hsl.setHslF(hsl.hslHueF() < 0 ? 0 : hsl.hslHueF(), hsl.hslSaturationF(), lightness);
106
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 26 if (contrast(hsl, surface) >= ratio) break;
107 }
108 2 return hsl.toRgb();
109 }
110
111 9935 QList<ComposeHighlighter::Word> ComposeHighlighter::checkableWords(const QString &text) {
112 9935 QList<Word> words;
113 // URLs and mail addresses are whole tokens between spaces.
114 9935 QList<QPair<int, int>> skipped;
115
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 9947 static const QRegularExpression token(QStringLiteral("\\S+"));
116
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 61941 for (auto it = token.globalMatch(text); it.hasNext();) {
117
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 52006 const auto match = it.next();
118
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 52006 const QString value = match.captured();
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 104118 if (value.contains(QLatin1String("://")) || value.startsWith(QLatin1String("www."), Qt::CaseInsensitive) ||
120
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 104118 (value.indexOf(QLatin1Char('@')) > 0 && value.indexOf(QLatin1Char('@')) < value.size() - 1))
121
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 109 skipped.append({int(match.capturedStart()), int(match.capturedEnd())});
122 61941 }
123
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 9935 QTextBoundaryFinder finder(QTextBoundaryFinder::Word, text);
124 9935 int start = 0;
125 while (true) {
126
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 106249 const int end = int(finder.toNextBoundary());
127
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 106249 if (end < 0) break;
128
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 96314 if (finder.boundaryReasons() & QTextBoundaryFinder::EndOfItem) {
129
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 52107 const QString word = text.mid(start, end - start);
130 52107 bool letters = false, digits = false, lower = false;
131
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 313909 for (const QChar c : word) {
132 261802 letters |= c.isLetter();
133 261802 digits |= c.isDigit();
134 261802 lower |= c.isLower();
135 }
136 52107 bool inSkipped = false;
137
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 53640 for (const auto &range : std::as_const(skipped)) inSkipped |= start >= range.first && end <= range.second;
138 // All-caps words (abbreviations) and words with digits are left alone.
139
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 52107 if (letters && !digits && lower && word.size() > 1 && !inSkipped) words.append({start, end - start});
140 52107 }
141 96314 start = end;
142 96314 }
143 9935 return words;
144 9935 }
145
146 119 QList<ComposeHighlighter::Word> ComposeHighlighter::misspellings(const QTextBlock &block) const {
147
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 119 return m_misspellings.value(block.blockNumber());
148 }
149
150 13793 void ComposeHighlighter::highlightBlock(const QString &text) {
151 13793 highlightStructure(text);
152 13793 highlightSpelling(text);
153 13793 }
154
155 13793 void ComposeHighlighter::highlightStructure(const QString &text) {
156
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 13793 const QTextBlock block = currentBlock();
157 13793 const int length = int(text.size());
158
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 13793 const int heading = block.blockFormat().headingLevel();
159
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 13793 const qreal base = m_basePoints > 0 ? m_basePoints : (document() ? document()->defaultFont().pointSizeF() : 10);
160
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 13793 if (heading > 0) {
161
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 30 QTextCharFormat format;
162
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 30 format.setFontWeight(QFont::Bold);
163
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 30 format.setFontPointSize(base * (heading == 1 ? 1.6 : heading == 2 ? 1.3 : 1.1));
164
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 30 setFormat(0, length, format);
165 30 }
166
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 13793 if (isCodeBlock(block)) {
167
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 3 QTextCharFormat format;
168
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 6 format.setFontFamilies({QStringLiteral("monospace")});
169
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 3 format.setFontFixedPitch(true);
170
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 3 if (m_palette.codeBackground.isValid()) format.setBackground(m_palette.codeBackground);
171
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 3 setFormat(0, length, format);
172 3 return;
173 3 }
174
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 13790 if (quoteLevel(block) > 0 || region(block) == QuoteRegion) {
175
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 9 QTextCharFormat format;
176
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 9 if (m_palette.secondary.isValid()) format.setForeground(m_palette.secondary);
177
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 9 setFormat(0, length, format);
178 9 }
179
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 13790 if (QTextTable *table = QTextCursor(block).currentTable()) {
180
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 185 const QTextTableCell cell = table->cellAt(block.position());
181
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 185 if (cell.isValid() && cell.row() < table->format().headerRowCount()) {
182 ✗ QTextCharFormat format;
183 ✗ format.setFontWeight(QFont::Bold);
184 ✗ setFormat(0, length, format);
185 ✗ }
186 185 }
187
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 32134 for (auto it = block.begin(); !it.atEnd(); ++it) {
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 18344 const QTextFragment fragment = it.fragment();
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 18344 if (!fragment.isValid()) continue;
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 18344 const QTextCharFormat source = fragment.charFormat();
191
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 18344 const int start = fragment.position() - block.position();
192
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 18344 if (isInlineCode(source)) {
193
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 2 QTextCharFormat format = this->format(start);
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 4 format.setFontFamilies({QStringLiteral("monospace")});
195
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 2 format.setFontFixedPitch(true);
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 2 if (m_palette.codeBackground.isValid()) format.setBackground(m_palette.codeBackground);
197
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 2 setFormat(start, fragment.length(), format);
198 2 }
199
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 18345 if (m_palette.dark && source.hasProperty(QTextFormat::ForegroundBrush) && !source.isAnchor() &&
200 1 m_palette.surface.isValid()) {
201
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 1 const QColor shown = readableOn(source.foreground().color(), m_palette.surface);
202
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 1 if (shown != source.foreground().color()) {
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 1 QTextCharFormat format = this->format(start);
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 1 format.setForeground(shown);
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 1 setFormat(start, fragment.length(), format);
206 1 }
207 }
208 18344 }
209 10 }
210
211 13793 void ComposeHighlighter::highlightSpelling(const QString &text) {
212
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 13793 const QTextBlock block = currentBlock();
213 13793 QList<Word> found;
214
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 23810 const bool skipBlock = !m_spellCheck || isCodeBlock(block) || quoteLevel(block) > 0 ||
215
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 23810 region(block) == QuoteRegion || region(block) == SignatureRegion;
216
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 13793 if (!skipBlock) {
217
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 19864 const QString language = block.blockFormat().stringProperty(LanguageProperty).isEmpty()
218
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 9932 ? m_language : block.blockFormat().stringProperty(LanguageProperty);
219
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 9932 const int caretInBlock = m_caret - block.position();
220 // Inline code and links are not checked: their ranges in one pass over
221 // the block's fragments (a cursor per word cost more than the check).
222 9932 QList<std::pair<int, int>> skipped;
223
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 18807 for (auto it = block.begin(); !it.atEnd(); ++it) {
224
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 8875 const QTextFragment fragment = it.fragment();
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 8875 if (fragment.isValid() && (isInlineCode(fragment.charFormat()) || fragment.charFormat().isAnchor()))
226
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 3 skipped.append({fragment.position() - block.position(), fragment.position() - block.position() + fragment.length()});
227 }
228 43052 const auto inSkipped = [&skipped](int offset) {
229
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 43055 for (const auto &[from, to] : skipped)
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 5 if (offset >= from && offset < to) return true;
231 43050 return false;
232 9932 };
233
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 53255 for (const Word &word : checkableWords(text)) {
234 // The word being typed is not judged before the pause.
235
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 77948 if (m_typing && caretInBlock >= word.start && caretInBlock <= word.start + word.length) continue;
236 // As the cursor read it: the format of the word's first character.
237
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 43052 if (inSkipped(word.start)) continue;
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 43050 if (!m_spellCheck(text.mid(word.start, word.length), language)) continue;
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 8427 found.append(word);
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 8427 QTextCharFormat format = this->format(word.start);
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 8427 format.setUnderlineStyle(QTextCharFormat::WaveUnderline);
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 8427 format.setUnderlineColor(m_palette.spellError.isValid() ? m_palette.spellError : QColor(Qt::red));
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 8427 setFormat(word.start, word.length, format);
244 18359 }
245 9932 }
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 13793 if (found.isEmpty()) m_misspellings.remove(block.blockNumber());
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 8187 else m_misspellings.insert(block.blockNumber(), found);
248 13793 }
249