KPimTextEdit

texthtmlbuilder.cpp
1/*
2 SPDX-FileCopyrightText: 2020-2025 Laurent Montel <montel@kde.org>
3 based on code from Stephen Kelly <steveire@gmail.com>
4
5 SPDX-License-Identifier: LGPL-2.0-or-later
6*/
7
8#include "texthtmlbuilder.h"
9using namespace Qt::Literals::StringLiterals;
10
11#include <QDebug>
12#include <QList>
13#include <QTextDocument>
14
15namespace KPIMTextEdit
16{
17class TextHTMLBuilderPrivate
18{
19public:
20 TextHTMLBuilderPrivate(TextHTMLBuilder *b)
21 : q_ptr(b)
22 {
23 }
24
25 QList<QTextListFormat::Style> currentListItemStyles;
26 QString mText;
27
28 TextHTMLBuilder *const q_ptr;
29
30 Q_DECLARE_PUBLIC(TextHTMLBuilder)
31};
32}
33
34using namespace KPIMTextEdit;
35TextHTMLBuilder::TextHTMLBuilder()
36 : AbstractMarkupBuilder()
37 , d_ptr(new TextHTMLBuilderPrivate(this))
38{
39}
40
41TextHTMLBuilder::~TextHTMLBuilder()
42{
43 delete d_ptr;
44}
45
46void TextHTMLBuilder::beginStrong()
47{
48 Q_D(TextHTMLBuilder);
49 d->mText.append(QStringLiteral("<strong>"));
50}
51
52void TextHTMLBuilder::endStrong()
53{
54 Q_D(TextHTMLBuilder);
55 d->mText.append(QStringLiteral("</strong>"));
56}
57
58void TextHTMLBuilder::beginEmph()
59{
60 Q_D(TextHTMLBuilder);
61 d->mText.append(QStringLiteral("<em>"));
62}
63
64void TextHTMLBuilder::endEmph()
65{
66 Q_D(TextHTMLBuilder);
67 d->mText.append(QStringLiteral("</em>"));
68}
69
70void TextHTMLBuilder::beginUnderline()
71{
72 Q_D(TextHTMLBuilder);
73 d->mText.append(QStringLiteral("<u>"));
74}
75
76void TextHTMLBuilder::endUnderline()
77{
78 Q_D(TextHTMLBuilder);
79 d->mText.append(QStringLiteral("</u>"));
80}
81
82void TextHTMLBuilder::beginStrikeout()
83{
84 Q_D(TextHTMLBuilder);
85 d->mText.append(QStringLiteral("<s>"));
86}
87
88void TextHTMLBuilder::endStrikeout()
89{
90 Q_D(TextHTMLBuilder);
91 d->mText.append(QStringLiteral("</s>"));
92}
93
94void TextHTMLBuilder::beginForeground(const QBrush &brush)
95{
96 Q_D(TextHTMLBuilder);
97 d->mText.append(QStringLiteral("<span style=\"color:%1;\">").arg(brush.color().name()));
98}
99
100void TextHTMLBuilder::endForeground()
101{
102 Q_D(TextHTMLBuilder);
103 d->mText.append(QStringLiteral("</span>"));
104}
105
106void TextHTMLBuilder::beginBackground(const QBrush &brush)
107{
108 Q_D(TextHTMLBuilder);
109 d->mText.append(QStringLiteral("<span style=\"background-color:%1;\">").arg(brush.color().name()));
110}
111
112void TextHTMLBuilder::endBackground()
113{
114 Q_D(TextHTMLBuilder);
115 d->mText.append(QStringLiteral("</span>"));
116}
117
118void TextHTMLBuilder::beginAnchor(const QString &href, const QString &name)
119{
120 Q_D(TextHTMLBuilder);
121 if (!href.isEmpty()) {
122 if (!name.isEmpty()) {
123 d->mText.append(QStringLiteral("<a href=\"%1\" name=\"%2\">").arg(href, name));
124 } else {
125 d->mText.append(QStringLiteral("<a href=\"%1\">").arg(href));
126 }
127 } else {
128 if (!name.isEmpty()) {
129 d->mText.append(QStringLiteral("<a name=\"%1\">").arg(name));
130 }
131 }
132}
133
134void TextHTMLBuilder::endAnchor()
135{
136 Q_D(TextHTMLBuilder);
137 d->mText.append(QStringLiteral("</a>"));
138}
139
140void TextHTMLBuilder::beginFontFamily(const QString &family)
141{
142 Q_D(TextHTMLBuilder);
143 d->mText.append(QStringLiteral("<span style=\"font-family:%1;\">").arg(family));
144}
145
146void TextHTMLBuilder::endFontFamily()
147{
148 Q_D(TextHTMLBuilder);
149 d->mText.append(QStringLiteral("</span>"));
150}
151
152void TextHTMLBuilder::beginFontPointSize(int size)
153{
154 Q_D(TextHTMLBuilder);
155 d->mText.append(QStringLiteral("<span style=\"font-size:%1pt;\">").arg(QString::number(size)));
156}
157
158void TextHTMLBuilder::endFontPointSize()
159{
160 Q_D(TextHTMLBuilder);
161 d->mText.append(QStringLiteral("</span>"));
162}
163
164void TextHTMLBuilder::beginParagraph(Qt::Alignment al, qreal topMargin, qreal bottomMargin, qreal leftMargin, qreal rightMargin, bool leftToRightText)
165{
166 Q_D(TextHTMLBuilder);
167 // Don't put paragraph tags inside li tags. Qt bug reported.
168 // if (currentListItemStyles.size() != 0)
169 // {
170 QString styleString;
171 styleString.append(QStringLiteral("margin-top:%1;").arg(topMargin));
172 styleString.append(QStringLiteral("margin-bottom:%1;").arg(bottomMargin));
173 styleString.append(QStringLiteral("margin-left:%1;").arg(leftMargin));
174 styleString.append(QStringLiteral("margin-right:%1;").arg(rightMargin));
175
176 // Using == doesn't work here.
177 // Using bitwise comparison because an alignment can contain a vertical and
178 // a
179 // horizontal part.
180 if (al & Qt::AlignRight) {
181 d->mText.append(QStringLiteral("<p align=\"right\" "));
182 } else if (al & Qt::AlignHCenter) {
183 d->mText.append(QStringLiteral("<p align=\"center\" "));
184 } else if (al & Qt::AlignJustify) {
185 d->mText.append(QStringLiteral("<p align=\"justify\" "));
186 } else if (al & Qt::AlignLeft) {
187 d->mText.append(QStringLiteral("<p"));
188 } else {
189 d->mText.append(QStringLiteral("<p"));
190 }
191 // Bug in grantlee => style is not defined
192 if (!styleString.isEmpty()) {
193 d->mText.append(QStringLiteral(" style=\"") + styleString + QLatin1Char('"'));
194 }
195 if (leftToRightText) {
196 d->mText.append(QStringLiteral(" dir='rtl'"));
197 }
198 d->mText.append(QLatin1Char('>'));
199 // }
200}
201
202void TextHTMLBuilder::beginHeader(int level)
203{
204 Q_D(TextHTMLBuilder);
205 switch (level) {
206 case 1:
207 d->mText.append(QStringLiteral("<h1>"));
208 break;
209 case 2:
210 d->mText.append(QStringLiteral("<h2>"));
211 break;
212 case 3:
213 d->mText.append(QStringLiteral("<h3>"));
214 break;
215 case 4:
216 d->mText.append(QStringLiteral("<h4>"));
217 break;
218 case 5:
219 d->mText.append(QStringLiteral("<h5>"));
220 break;
221 case 6:
222 d->mText.append(QStringLiteral("<h6>"));
223 break;
224 default:
225 break;
226 }
227}
228
229void TextHTMLBuilder::endHeader(int level)
230{
231 Q_D(TextHTMLBuilder);
232 switch (level) {
233 case 1:
234 d->mText.append(QStringLiteral("</h1>"));
235 break;
236 case 2:
237 d->mText.append(QStringLiteral("</h2>"));
238 break;
239 case 3:
240 d->mText.append(QStringLiteral("</h3>"));
241 break;
242 case 4:
243 d->mText.append(QStringLiteral("</h4>"));
244 break;
245 case 5:
246 d->mText.append(QStringLiteral("</h5>"));
247 break;
248 case 6:
249 d->mText.append(QStringLiteral("</h6>"));
250 break;
251 default:
252 break;
253 }
254}
255
256void TextHTMLBuilder::endParagraph()
257{
258 Q_D(TextHTMLBuilder);
259 d->mText.append(QStringLiteral("</p>\n"));
260}
261
262void TextHTMLBuilder::addNewline()
263{
264 Q_D(TextHTMLBuilder);
265 d->mText.append(QStringLiteral("<p>&nbsp;"));
266}
267
268void TextHTMLBuilder::insertHorizontalRule(int width)
269{
270 Q_D(TextHTMLBuilder);
271 if (width != -1) {
272 d->mText.append(QStringLiteral("<hr width=\"%1\" />\n").arg(width));
273 }
274 d->mText.append(QStringLiteral("<hr />\n"));
275}
276
277void TextHTMLBuilder::insertImage(const QString &src, qreal width, qreal height)
278{
279 Q_D(TextHTMLBuilder);
280 d->mText.append(QStringLiteral("<img src=\"%1\" ").arg(src));
281 if (width != 0) {
282 d->mText.append(QStringLiteral("width=\"%2\" ").arg(width));
283 }
284 if (height != 0) {
285 d->mText.append(QStringLiteral("height=\"%2\" ").arg(height));
286 }
287 d->mText.append(QStringLiteral("/>"));
288}
289
290void TextHTMLBuilder::beginList(QTextListFormat::Style type)
291{
292 Q_D(TextHTMLBuilder);
293 d->currentListItemStyles.append(type);
294 switch (type) {
295 case QTextListFormat::ListDisc:
296 d->mText.append(QStringLiteral("<ul type=\"disc\">\n"));
297 break;
298 case QTextListFormat::ListCircle:
299 d->mText.append(QStringLiteral("\n<ul type=\"circle\">\n"));
300 break;
301 case QTextListFormat::ListSquare:
302 d->mText.append(QStringLiteral("\n<ul type=\"square\">\n"));
303 break;
304 case QTextListFormat::ListDecimal:
305 d->mText.append(QStringLiteral("\n<ol type=\"1\">\n"));
306 break;
307 case QTextListFormat::ListLowerAlpha:
308 d->mText.append(QStringLiteral("\n<ol type=\"a\">\n"));
309 break;
310 case QTextListFormat::ListUpperAlpha:
311 d->mText.append(QStringLiteral("\n<ol type=\"A\">\n"));
312 break;
313 case QTextListFormat::ListLowerRoman:
314 d->mText.append(QStringLiteral("\n<ol type=\"i\">\n"));
315 break;
316 case QTextListFormat::ListUpperRoman:
317 d->mText.append(QStringLiteral("\n<ol type=\"I\">\n"));
318 break;
319 default:
320 break;
321 }
322}
323void TextHTMLBuilder::endList()
324{
325 Q_D(TextHTMLBuilder);
326 switch (d->currentListItemStyles.last()) {
327 case QTextListFormat::ListDisc:
328 case QTextListFormat::ListCircle:
329 case QTextListFormat::ListSquare:
330 d->mText.append(QStringLiteral("</ul>\n"));
331 break;
332 case QTextListFormat::ListDecimal:
333 case QTextListFormat::ListLowerAlpha:
334 case QTextListFormat::ListUpperAlpha:
335 case QTextListFormat::ListLowerRoman:
336 case QTextListFormat::ListUpperRoman:
337 d->mText.append(QStringLiteral("</ol>\n"));
338 break;
339 default:
340 break;
341 }
342 d->currentListItemStyles.removeLast();
343}
344void TextHTMLBuilder::beginListItem()
345{
346 Q_D(TextHTMLBuilder);
347 d->mText.append(QStringLiteral("<li>"));
348}
349
350void TextHTMLBuilder::endListItem()
351{
352 Q_D(TextHTMLBuilder);
353 d->mText.append(QStringLiteral("</li>\n"));
354}
355
356void TextHTMLBuilder::beginSuperscript()
357{
358 Q_D(TextHTMLBuilder);
359 d->mText.append(QStringLiteral("<sup>"));
360}
361
362void TextHTMLBuilder::endSuperscript()
363{
364 Q_D(TextHTMLBuilder);
365 d->mText.append(QStringLiteral("</sup>"));
366}
367
368void TextHTMLBuilder::beginSubscript()
369{
370 Q_D(TextHTMLBuilder);
371 d->mText.append(QStringLiteral("<sub>"));
372}
373
374void TextHTMLBuilder::endSubscript()
375{
376 Q_D(TextHTMLBuilder);
377 d->mText.append(QStringLiteral("</sub>"));
378}
379
380void TextHTMLBuilder::beginTable(qreal cellpadding, qreal cellspacing, const QString &width)
381{
382 Q_D(TextHTMLBuilder);
383 d->mText.append(QStringLiteral("<table cellpadding=\"%1\" cellspacing=\"%2\" "
384 "width=\"%3\" border=\"1\">")
385 .arg(cellpadding)
386 .arg(cellspacing)
387 .arg(width));
388}
389
390void TextHTMLBuilder::beginTableRow()
391{
392 Q_D(TextHTMLBuilder);
393 d->mText.append(QStringLiteral("<tr>"));
394}
395
396void TextHTMLBuilder::beginTableHeaderCell(const QString &width, int colspan, int rowspan)
397{
398 Q_D(TextHTMLBuilder);
399 d->mText.append(QStringLiteral("<th width=\"%1\" colspan=\"%2\" rowspan=\"%3\">").arg(width).arg(colspan).arg(rowspan));
400}
401
402void TextHTMLBuilder::beginTableCell(const QString &width, int colspan, int rowspan)
403{
404 Q_D(TextHTMLBuilder);
405 d->mText.append(QStringLiteral("<td width=\"%1\" colspan=\"%2\" rowspan=\"%3\">").arg(width).arg(colspan).arg(rowspan));
406}
407
408void TextHTMLBuilder::endTable()
409{
410 Q_D(TextHTMLBuilder);
411 d->mText.append(QStringLiteral("</table>"));
412}
413
414void TextHTMLBuilder::endTableRow()
415{
416 Q_D(TextHTMLBuilder);
417 d->mText.append(QStringLiteral("</tr>"));
418}
419
420void TextHTMLBuilder::endTableHeaderCell()
421{
422 Q_D(TextHTMLBuilder);
423 d->mText.append(QStringLiteral("</th>"));
424}
425
426void TextHTMLBuilder::endTableCell()
427{
428 Q_D(TextHTMLBuilder);
429 d->mText.append(QStringLiteral("</td>"));
430}
431
432void TextHTMLBuilder::appendLiteralText(const QString &text)
433{
434 Q_D(TextHTMLBuilder);
435 const QString textEscaped = text.toHtmlEscaped();
436 QString textEscapedResult;
437 for (int i = 0, total = textEscaped.length(); i < total; ++i) {
438 const QChar c = textEscaped.at(i);
439
440 if (c == QLatin1Char(' ')) {
441 if (i == 0) {
442 textEscapedResult += QStringLiteral("&nbsp;");
443 } else {
444 if (i + 1 < textEscaped.length() && (textEscaped.at(i + 1) == QLatin1Char(' '))) {
445 textEscapedResult += QStringLiteral("&nbsp;");
446 } else {
447 textEscapedResult += c;
448 }
449 }
450 } else if (c == QLatin1Char('\t')) {
451 textEscapedResult += QStringLiteral("&nbsp;&nbsp;&nbsp; ");
452 } else {
453 textEscapedResult += c;
454 }
455 }
456 d->mText.append(textEscapedResult);
457}
458
459void TextHTMLBuilder::appendRawText(const QString &text)
460{
461 Q_D(TextHTMLBuilder);
462 d->mText.append(text);
463}
464
465QString TextHTMLBuilder::getResult()
466{
467 Q_D(TextHTMLBuilder);
468 auto ret = d->mText;
469 d->mText.clear();
470 return ret;
471}
472
473void KPIMTextEdit::TextHTMLBuilder::addSingleBreakLine()
474{
475 Q_D(TextHTMLBuilder);
476 d->mText.append("<br />"_L1);
477}
KPIMTextEdit::AbstractMarkupBuilder
Interface for creating marked-up text output.
Definition abstractmarkupbuilder.h:37
KPIMTextEdit::TextHTMLBuilder
The TextHTMLBuilder creates a clean html markup output.
Definition texthtmlbuilder.h:86
KPIMTextEdit::TextHTMLBuilder::beginTableCell
void beginTableCell(const QString &width, int colspan, int rowspan) override
Begin a new table cell.
Definition texthtmlbuilder.cpp:402
KPIMTextEdit::TextHTMLBuilder::beginEmph
void beginEmph() override
Begin an emphasised element in the markup.
Definition texthtmlbuilder.cpp:58
KPIMTextEdit::TextHTMLBuilder::beginTable
void beginTable(qreal cellpadding, qreal cellspacing, const QString &width) override
Begin a table element.
Definition texthtmlbuilder.cpp:380
KPIMTextEdit::TextHTMLBuilder::appendRawText
void appendRawText(const QString &text) override
Append text without escaping.
Definition texthtmlbuilder.cpp:459
KPIMTextEdit::TextHTMLBuilder::beginSubscript
void beginSubscript() override
Begin a subscript element.
Definition texthtmlbuilder.cpp:368
KPIMTextEdit::TextHTMLBuilder::beginSuperscript
void beginSuperscript() override
Begin a superscript element.
Definition texthtmlbuilder.cpp:356
KPIMTextEdit::TextHTMLBuilder::beginTableRow
void beginTableRow() override
Begin a new table row.
Definition texthtmlbuilder.cpp:390
KPIMTextEdit::TextHTMLBuilder::endParagraph
void endParagraph() override
Close the paragraph in the markup.
Definition texthtmlbuilder.cpp:256
KPIMTextEdit::TextHTMLBuilder::endSuperscript
void endSuperscript() override
End superscript element.
Definition texthtmlbuilder.cpp:362
KPIMTextEdit::TextHTMLBuilder::getResult
QString getResult() override
Return the fully marked up result of the building process.
Definition texthtmlbuilder.cpp:465
KPIMTextEdit::TextHTMLBuilder::beginAnchor
void beginAnchor(const QString &href={}, const QString &name={}) override
Begin a url anchor element in the markup.
Definition texthtmlbuilder.cpp:118
KPIMTextEdit::TextHTMLBuilder::endStrong
void endStrong() override
Close the bold element in the markup.
Definition texthtmlbuilder.cpp:52
KPIMTextEdit::TextHTMLBuilder::endList
void endList() override
Close the list.
Definition texthtmlbuilder.cpp:323
KPIMTextEdit::TextHTMLBuilder::endAnchor
void endAnchor() override
Close the anchor element.
Definition texthtmlbuilder.cpp:134
KPIMTextEdit::TextHTMLBuilder::beginListItem
void beginListItem() override
Begin a new list item in the markup.
Definition texthtmlbuilder.cpp:344
KPIMTextEdit::TextHTMLBuilder::endTable
void endTable() override
End a table element.
Definition texthtmlbuilder.cpp:408
KPIMTextEdit::TextHTMLBuilder::beginForeground
void beginForeground(const QBrush &brush) override
Begin a decorarated foreground element in the markup (A text color) using brush.
Definition texthtmlbuilder.cpp:94
KPIMTextEdit::TextHTMLBuilder::endBackground
void endBackground() override
Close the decorarated background element in the markup.
Definition texthtmlbuilder.cpp:112
KPIMTextEdit::TextHTMLBuilder::beginBackground
void beginBackground(const QBrush &brush) override
Begin a decorarated background element in the markup (A text background color) using brush.
Definition texthtmlbuilder.cpp:106
KPIMTextEdit::TextHTMLBuilder::appendLiteralText
void appendLiteralText(const QString &text) override
Reimplemented from AbstractMarkupBuilder.
Definition texthtmlbuilder.cpp:432
KPIMTextEdit::TextHTMLBuilder::beginStrikeout
void beginStrikeout() override
Begin a struck out element in the markup.
Definition texthtmlbuilder.cpp:82
KPIMTextEdit::TextHTMLBuilder::beginHeader
void beginHeader(int level) override
Begin a new header element.
Definition texthtmlbuilder.cpp:202
KPIMTextEdit::TextHTMLBuilder::endHeader
void endHeader(int level) override
End a header element.
Definition texthtmlbuilder.cpp:229
KPIMTextEdit::TextHTMLBuilder::beginParagraph
void beginParagraph(Qt::Alignment al=Qt::AlignLeft, qreal topMargin=0.0, qreal bottomMargin=0.0, qreal leftMargin=0.0, qreal rightMargin=0.0, bool leftToRightText=false) override
Begin a new paragraph.
Definition texthtmlbuilder.cpp:164
KPIMTextEdit::TextHTMLBuilder::endTableHeaderCell
void endTableHeaderCell() override
End a table header cell.
Definition texthtmlbuilder.cpp:420
KPIMTextEdit::TextHTMLBuilder::beginTableHeaderCell
void beginTableHeaderCell(const QString &width, int colspan, int rowspan) override
Begin a new table header cell.
Definition texthtmlbuilder.cpp:396
KPIMTextEdit::TextHTMLBuilder::endFontFamily
void endFontFamily() override
End font family element.
Definition texthtmlbuilder.cpp:146
KPIMTextEdit::TextHTMLBuilder::endStrikeout
void endStrikeout() override
Close the struck out element in the markup.
Definition texthtmlbuilder.cpp:88
KPIMTextEdit::TextHTMLBuilder::endFontPointSize
void endFontPointSize() override
End font point size element.
Definition texthtmlbuilder.cpp:158
KPIMTextEdit::TextHTMLBuilder::insertHorizontalRule
void insertHorizontalRule(int width=-1) override
Insert a horizontal rule into the markup.
Definition texthtmlbuilder.cpp:268
KPIMTextEdit::TextHTMLBuilder::endTableCell
void endTableCell() override
End a table cell.
Definition texthtmlbuilder.cpp:426
KPIMTextEdit::TextHTMLBuilder::endForeground
void endForeground() override
Close the decorarated foreground element in the markup.
Definition texthtmlbuilder.cpp:100
KPIMTextEdit::TextHTMLBuilder::insertImage
void insertImage(const QString &src, qreal width, qreal height) override
Insert a new image element into the markup.
Definition texthtmlbuilder.cpp:277
KPIMTextEdit::TextHTMLBuilder::beginStrong
void beginStrong() override
Begin a bold element in the markup.
Definition texthtmlbuilder.cpp:46
KPIMTextEdit::TextHTMLBuilder::beginUnderline
void beginUnderline() override
Begin an underlined element in the markup.
Definition texthtmlbuilder.cpp:70
KPIMTextEdit::TextHTMLBuilder::beginList
void beginList(QTextListFormat::Style type) override
Begin a new list element in the markup.
Definition texthtmlbuilder.cpp:290
KPIMTextEdit::TextHTMLBuilder::beginFontFamily
void beginFontFamily(const QString &family) override
Begin a new font family element in the markup.
Definition texthtmlbuilder.cpp:140
KPIMTextEdit::TextHTMLBuilder::endUnderline
void endUnderline() override
Close the underlined element in the markup.
Definition texthtmlbuilder.cpp:76
KPIMTextEdit::TextHTMLBuilder::beginFontPointSize
void beginFontPointSize(int size) override
Begin a new font point size.
Definition texthtmlbuilder.cpp:152
KPIMTextEdit::TextHTMLBuilder::endTableRow
void endTableRow() override
End a table row.
Definition texthtmlbuilder.cpp:414
KPIMTextEdit::TextHTMLBuilder::endEmph
void endEmph() override
Close the emphasised element in the markup.
Definition texthtmlbuilder.cpp:64
KPIMTextEdit::TextHTMLBuilder::addNewline
void addNewline() override
Add a newline to the markup.
Definition texthtmlbuilder.cpp:262
KPIMTextEdit::TextHTMLBuilder::endSubscript
void endSubscript() override
End subscript element.
Definition texthtmlbuilder.cpp:374
KPIMTextEdit::TextHTMLBuilder::endListItem
void endListItem() override
End the list item.
Definition texthtmlbuilder.cpp:350
QBrush::color
const QColor & color() const const
QColor::name
QString name(NameFormat format) const const
QString::append
QString & append(QChar ch)
QString::at
const QChar at(qsizetype position) const const
QString::isEmpty
bool isEmpty() const const
QString::length
qsizetype length() const const
QString::number
QString number(double n, char format, int precision)
QString::toHtmlEscaped
QString toHtmlEscaped() const const
Qt::Alignment
typedef Alignment
Q_D
Q_D(Todo)
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