88 lines
2.1 KiB
C++
88 lines
2.1 KiB
C++
/*
|
|
* This file Copyright (C) 2009-2015 Mnemosyne LLC
|
|
*
|
|
* It may be used under the GNU GPL versions 2 or 3
|
|
* or any future license endorsed by Mnemosyne LLC.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#ifndef QTR_UTILS_H
|
|
#define QTR_UTILS_H
|
|
|
|
#include <cctype> // isxdigit()
|
|
|
|
#include <QRect>
|
|
#include <QString>
|
|
|
|
class QAbstractItemView;
|
|
class QColor;
|
|
class QHeaderView;
|
|
class QIcon;
|
|
|
|
class Utils
|
|
{
|
|
public:
|
|
static QIcon guessMimeIcon (const QString& filename);
|
|
// Test if string is UTF-8 or not
|
|
static bool isValidUtf8 (const char * s);
|
|
|
|
static QString removeTrailingDirSeparator (const QString& path);
|
|
|
|
static void narrowRect (QRect& rect, int dx1, int dx2, Qt::LayoutDirection direction)
|
|
{
|
|
if (direction == Qt::RightToLeft)
|
|
qSwap (dx1, dx2);
|
|
rect.adjust (dx1, 0, -dx2, 0);
|
|
}
|
|
|
|
static int measureViewItem (QAbstractItemView * view, const QString& text);
|
|
static int measureHeaderItem (QHeaderView * view, const QString& text);
|
|
|
|
static QColor getFadedColor (const QColor& color);
|
|
|
|
template<typename DialogT, typename... ArgsT>
|
|
static void
|
|
openDialog (QPointer<DialogT>& dialog, ArgsT&&... args)
|
|
{
|
|
if (dialog.isNull ())
|
|
{
|
|
dialog = new DialogT (std::forward<ArgsT> (args)...);
|
|
dialog->setAttribute (Qt::WA_DeleteOnClose);
|
|
dialog->show ();
|
|
}
|
|
else
|
|
{
|
|
dialog->raise ();
|
|
dialog->activateWindow ();
|
|
}
|
|
}
|
|
|
|
///
|
|
/// URLs
|
|
///
|
|
|
|
static bool isMagnetLink (const QString& s)
|
|
{
|
|
return s.startsWith (QString::fromUtf8 ("magnet:?"));
|
|
}
|
|
|
|
static bool isHexHashcode (const QString& s)
|
|
{
|
|
if (s.length() != 40)
|
|
return false;
|
|
for (const QChar ch: s) if (!isxdigit (ch.unicode())) return false;
|
|
return true;
|
|
}
|
|
|
|
static bool isUriWithSupportedScheme (const QString& s)
|
|
{
|
|
static const QString ftp = QString::fromUtf8 ("ftp://");
|
|
static const QString http = QString::fromUtf8 ("http://");
|
|
static const QString https = QString::fromUtf8 ("https://");
|
|
return s.startsWith(http) || s.startsWith(https) || s.startsWith(ftp);
|
|
}
|
|
};
|
|
|
|
#endif // QTR_UTILS_H
|