src/views/zoomlevelinfo.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "zoomlevelinfo.h"
  21 #include <kiconloader.h>
  22 #include <QSize>
  23
  24 int ZoomLevelInfo::minimumLevel()
  25 {
  26     return 0;
  27 }
  28
  29 int ZoomLevelInfo::maximumLevel()
  30 {
  31     return 16;
  32 }
  33
  34 int ZoomLevelInfo::iconSizeForZoomLevel(int level)
  35 {
  36     int size = KIconLoader::SizeMedium;
  37     switch (level) {
  38     case 0:  size = KIconLoader::SizeSmall; break;
  39     case 1:  size = KIconLoader::SizeSmallMedium; break;
  40     case 2:  size = KIconLoader::SizeMedium; break;
  41     case 3:  size = KIconLoader::SizeLarge; break;
  42     case 4:  size = KIconLoader::SizeHuge; break;
  43     default: size = KIconLoader::SizeHuge + ((level - 4) << 4);
  44     }
  45     return size;
  46 }
  47
  48 int ZoomLevelInfo::zoomLevelForIconSize(const QSize& size)
  49 {
  50     int level = 0;
  51     switch (size.height()) {
  52     case KIconLoader::SizeSmall:       level = 0; break;
  53     case KIconLoader::SizeSmallMedium: level = 1; break;
  54     case KIconLoader::SizeMedium:      level = 2; break;
  55     case KIconLoader::SizeLarge:       level = 3; break;
  56     case KIconLoader::SizeHuge:        level = 4; break;
  57     default: level = 4 + ((size.height() - KIconLoader::SizeHuge) >> 4);
  58     }
  59     return level;
  60 }