/**
* @brief Returns html rendered markdown of the note text
* @param notesPath for transforming relative local urls to absolute ones
* @param maxImageWidth defined maximum image width (ignored if forExport is true)
* @param forExport defines whether the export or preview stylesheet
* @return
*/
QString Note::toMarkdownHtml(QString notesPath, int maxImageWidth, bool forExport) {
hoedown_renderer *renderer =
hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 16);
hoedown_extensions extensions =
(hoedown_extensions) (HOEDOWN_EXT_BLOCK | HOEDOWN_EXT_SPAN);
hoedown_document *document = hoedown_document_new(renderer, extensions, 16);
// get the decrypted note text (or the normal note text if there isn't any)
QString str = getDecryptedNoteText();
QString windowsSlash = "";
#ifdef Q_OS_WIN32
// we need an other slash for Windows
windowsSlash = "/";
#endif
// parse for relative file urls and make them absolute
// (for example to show images under the note path)
str.replace(
QRegularExpression("\\(file:\\/\\/([^\\/].+)\\)"),
"(file://" + windowsSlash + notesPath + "/\\1)");
unsigned char *sequence = (unsigned char *) qstrdup(
str.toUtf8().constData());
qint64 length = strlen((char *) sequence);
// return an empty string if the note is empty
if (length == 0) {
return "";
}
hoedown_buffer *html = hoedown_buffer_new(length);
// render markdown html
hoedown_document_render(document, html, sequence, length);
// get markdown html
QString result = QString::fromUtf8((char *) html->data, html->size);
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
QSettings(settings);
QString fontString = settings.value("MainWindow/noteTextView.code.font")
.toString();
// set the stylesheet for the <code> blocks
QString codeStyleSheet = "";
if (fontString != "") {
// set the note text view font
QFont font;
font.fromString(fontString);
// add the font for the code block
codeStyleSheet = QString(
"pre, code { %1; }").arg(encodeCssFont(font));
}
bool darkModeColors = settings.value("darkModeColors").toBool();
QString codeBackgroundColor = darkModeColors ? "#444444" : "#f1f1f1";
// do some more code formatting
codeStyleSheet += QString(
"pre, code { padding: 16px; overflow: auto;"
" line-height: 1.45em; background-color: %1;"
" border-radius: 3px; }").arg(codeBackgroundColor);
// remove double code blocks
result.replace("<pre><code>", "<pre>")
.replace("</code></pre>", "</pre>");
if (forExport) {
// get defined body font from settings
QString bodyfontString = settings.value("MainWindow/noteTextView.font")
.toString();
// create export stylesheet
QString exportStyleSheet = "";
if (bodyfontString != "") {
QFont bodyFont;
bodyFont.fromString(bodyfontString);
exportStyleSheet = QString(
"body { %1; }").arg(encodeCssFont(bodyFont));
}
result = QString("<html><head><meta charset=\"utf-8\"/><style>"
"h1 { margin: 5px 0 20px 0; }"
"h2, h3 { margin: 10px 0 15px 0; }"
"img { max-width: 100%; }"
"a { color: #FF9137; text-decoration: none; } %1 %2"
"</style></head><body>%3</body></html>")
.arg(codeStyleSheet, exportStyleSheet, result);
} else {
// for preview
result = QString("<html><head><style>"
"h1 { margin: 5px 0 20px 0; }"
"h2, h3 { margin: 10px 0 15px 0; }"
"a { color: #FF9137; text-decoration: none; } %1"
"</style></head><body>%2</body></html>")
.arg(codeStyleSheet, result);
}
// check if width of embedded local images is too high
QRegularExpression re("<img src=\"file:\\/\\/([^\"]+)\"");
QRegularExpressionMatchIterator i = re.globalMatch(result);
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
QString fileName = match.captured(1);
#ifdef Q_OS_WIN
// remove the leading slash under Windows to get a more correct filename
QImage image(Utils::Misc::removeIfStartsWith(fileName, "/"));
#else
QImage image(fileName);
#endif
if (forExport) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
QString("<img src=\"file://%2\"").arg(fileName));
} else {
// for preview
// cap the image width at 980px or the note text view width
if (image.width() > maxImageWidth) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
QString("<img width=\"%1\" src=\"file://%2\"").arg(
QString::number(maxImageWidth), fileName));
}
}
}
// check if there is a script that wants to modify the content
QString scriptResult = ScriptingService::instance()
->callNoteToMarkdownHtmlHook(this, result);
if (!scriptResult.isEmpty()) {
result = scriptResult;
}
return result;
}
/**
* @brief Returns html rendered markdown of the note text
* @param notesPath for transforming relative local urls to absolute ones
* @return
*/
QString Note::toMarkdownHtml(QString notesPath) {
hoedown_renderer *renderer =
hoedown_html_renderer_new(HOEDOWN_HTML_USE_XHTML, 16);
hoedown_extensions extensions =
(hoedown_extensions) (HOEDOWN_EXT_BLOCK | HOEDOWN_EXT_SPAN);
hoedown_document *document = hoedown_document_new(renderer, extensions, 16);
// get the decrypted note text (or the normal note text if there isn't any)
QString str = getDecryptedNoteText();
QString windowsSlash = "";
#ifdef Q_OS_WIN32
// we need an other slash for Windows
windowsSlash = "/";
#endif
// parse for relative file urls and make them absolute
// (for example to show images under the note path)
str.replace(
QRegularExpression("\\(file:\\/\\/([^\\/].+)\\)"),
"(file://" + windowsSlash + notesPath + "/\\1)");
unsigned char *sequence = (unsigned char *) qstrdup(
str.toUtf8().constData());
qint64 length = strlen((char *) sequence);
// return an empty string if the note is empty
if (length == 0) {
return "";
}
hoedown_buffer *html = hoedown_buffer_new(length);
// render markdown html
hoedown_document_render(document, html, sequence, length);
// get markdown html
QString result = QString::fromUtf8((char *) html->data, html->size);
/* Cleanup */
free(sequence);
hoedown_buffer_free(html);
hoedown_document_free(document);
hoedown_html_renderer_free(renderer);
QSettings(settings);
QString fontString = settings.value("MainWindow/noteTextView.code.font")
.toString();
// set the stylesheet for the <code> blocks
QString codeStyleSheet = "";
if (fontString != "") {
// set the note text view font
QFont font;
font.fromString(fontString);
codeStyleSheet = "pre, code {" + encodeCssFont(font) + "}";
}
result = "<html><head>"
"<style>h1, h2, h3 { margin: 5pt 0 10pt 0; }"
"a { color: #FF9137; text-decoration: none; }" +
codeStyleSheet + "</style></head><body>" +
result + "</body></html>";
// check if width of embedded local images is too high
QRegularExpression re("<img src=\"file:\\/\\/([^\"]+)\"");
QRegularExpressionMatchIterator i = re.globalMatch(result);
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
QString fileName = match.captured(1);
QImage image(fileName);
// cap the image width at 980px
if (image.width() > 980) {
result.replace(
QRegularExpression("<img src=\"file:\\/\\/" +
QRegularExpression::escape(fileName) +
"\""),
"<img width=\"980\" src=\"file://" + fileName + "\"");
}
}
return result;
}
