#include "support/convert.h"
#include "support/debug.h"
-#include "support/foreach.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/lyxalgo.h"
#include <QLocale>
#include <QPalette>
#include <QSet>
+#include <QTextLayout>
+#include <QTextDocument>
+#include <QToolTip>
#include <algorithm>
#include <fstream>
// Everything from the start of the input to
// the start of the match.
- parse_filter(string(what[-1].first, what[-1].second));
+ parse_filter(string(it, what[0].first));
// Increment the iterator to the end of the match.
it += distance(it, what[0].second);
}
+QString formatToolTip(QString text, int em)
+{
+ // 1. QTooltip activates word wrapping only if mightBeRichText()
+ // is true. So we convert the text to rich text.
+ //
+ // 2. The default width is way too small. Setting the width is tricky; first
+ // one has to compute the ideal width, and then force it with special
+ // html markup.
+
+ // do nothing if empty or already formatted
+ if (text.isEmpty() || text.startsWith(QString("<html>")))
+ return text;
+ // Convert to rich text if it is not already
+ if (!Qt::mightBeRichText(text))
+ text = Qt::convertFromPlainText(text, Qt::WhiteSpaceNormal);
+ // Compute desired width in pixels
+ QFont const font = QToolTip::font();
+ int const px_width = em * QFontMetrics(font).width("M");
+ // Determine the ideal width of the tooltip
+ QTextDocument td("");
+ td.setHtml(text);
+ td.setDefaultFont(QToolTip::font());
+ td.setTextWidth(px_width);
+ double best_width = td.idealWidth();
+ // Set the line wrapping with appropriate width
+ return QString("<html><body><table><tr>"
+ "<td align=justify width=%1>%2</td>"
+ "</tr></table></body></html>")
+ .arg(QString::number(int(best_width) + 1), text);
+ return text;
+}
+
+
+QString qtHtmlToPlainText(QString const & html)
+{
+ if (!Qt::mightBeRichText(html))
+ return html;
+ QTextDocument td;
+ td.setHtml(html);
+ return td.toPlainText();
+}
+
+
} // namespace lyx