ground/openpilotgcs/src/plugins/coreplugin/fileiconprovider.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       fileiconprovider.h
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
   6  *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
   7  * @addtogroup GCSPlugins GCS Plugins
   8  * @{
   9  * @addtogroup CorePlugin Core Plugin
  10  * @{
  11  * @brief The Core GCS plugin
  12  *****************************************************************************/
  13 /*
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 3 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful, but
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  21  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  22  * for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License along
  25  * with this program; if not, write to the Free Software Foundation, Inc.,
  26  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  27  */
  28
  29 #ifndef FILEICONPROVIDER_H
  30 #define FILEICONPROVIDER_H
  31
  32 #include <coreplugin/core_global.h>
  33
  34 #include <QtCore/QFileInfo>
  35 #include <QtCore/QPair>
  36 #include <QtGui/QFileIconProvider>
  37 #include <QtGui/QIcon>
  38 #include <QtGui/QStyle>
  39
  40 namespace Core {
  41 class MimeType;
  42
  43 class CORE_EXPORT FileIconProvider {
  44 public: ~FileIconProvider(); // used to clear the cache
  45     QIcon icon(const QFileInfo &fileInfo);
  46
  47     QPixmap overlayIcon(QStyle::StandardPixmap baseIcon, const QIcon &overlayIcon, const QSize &size) const;
  48     void registerIconOverlayForSuffix(const QIcon &icon, const QString &suffix);
  49     void registerIconOverlayForMimeType(const QIcon &icon, const MimeType &mimeType);
  50
  51     static FileIconProvider *instance();
  52
  53 private:
  54     QIcon iconForSuffix(const QString &suffix) const;
  55
  56     // mapping of file ending to icon
  57     // TODO: Check if this is really faster than a QHash
  58     mutable QList<QPair<QString, QIcon> > m_cache;
  59
  60     QFileIconProvider m_systemIconProvider;
  61     QIcon m_unknownFileIcon;
  62
  63     // singleton pattern
  64     FileIconProvider();
  65     static FileIconProvider *m_instance;
  66 };
  67 } // namespace Core
  68
  69 #endif // FILEICONPROVIDER_H