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/*
* Copyright (C) 2005-2012 Team XBMC
* http://www.xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "AutoSwitch.h"
#include "settings/Settings.h"
#include "settings/GUISettings.h"
#include "guilib/GUIWindowManager.h"
#include "FileItem.h"
#include "guilib/Key.h"
#define METHOD_BYFOLDERS 0
#define METHOD_BYFILES 1
#define METHOD_BYTHUMBPERCENT 2
#define METHOD_BYFILECOUNT 3
#define METHOD_BYFOLDERTHUMBS 4
CAutoSwitch::CAutoSwitch(void)
{}
CAutoSwitch::~CAutoSwitch(void)
{}
/// \brief Generic function to add a layer of transparency to the calling window
/// \param vecItems Vector of FileItems passed from the calling window
int CAutoSwitch::GetView(const CFileItemList &vecItems)
{
int iSortMethod = -1;
int iPercent = 0;
int iCurrentWindow = g_windowManager.GetActiveWindow();
bool bHideParentFolderItems = !g_guiSettings.GetBool("filelists.showparentdiritems");
switch (iCurrentWindow)
{
case WINDOW_MUSIC_FILES:
{
iSortMethod = METHOD_BYFOLDERTHUMBS;
iPercent = 50;
}
break;
case WINDOW_VIDEO_FILES:
{
iSortMethod = METHOD_BYTHUMBPERCENT;
iPercent = 50; // 50% of thumbs -> use thumbs.
}
break;
case WINDOW_PICTURES:
{
iSortMethod = METHOD_BYFILECOUNT;
}
break;
case WINDOW_PROGRAMS:
{
iSortMethod = METHOD_BYTHUMBPERCENT;
iPercent = 50; // 50% of thumbs -> use thumbs.
}
break;
default:
{
if(MetadataPercentage(vecItems) > 0.25)
return DEFAULT_VIEW_INFO;
else
return DEFAULT_VIEW_LIST;
}
break;
}
bool bThumbs = false;
switch (iSortMethod)
{
case METHOD_BYFOLDERS:
bThumbs = ByFolders(vecItems);
break;
case METHOD_BYFILES:
bThumbs = ByFiles(bHideParentFolderItems, vecItems);
break;
case METHOD_BYTHUMBPERCENT:
bThumbs = ByThumbPercent(bHideParentFolderItems, iPercent, vecItems);
break;
case METHOD_BYFILECOUNT:
bThumbs = ByFileCount(vecItems);
break;
case METHOD_BYFOLDERTHUMBS:
bThumbs = ByFolderThumbPercentage(bHideParentFolderItems, iPercent, vecItems);
break;
}
// the GUIViewControl object will default down to small icons if a big icon
// view is not available.
return bThumbs ? DEFAULT_VIEW_BIG_ICONS : DEFAULT_VIEW_LIST;
}
/// \brief Auto Switch method based on the current directory \e containing ALL folders and \e atleast one non-default thumb
/// \param vecItems Vector of FileItems
bool CAutoSwitch::ByFolders(const CFileItemList& vecItems)
{
bool bThumbs = false;
// is the list all folders?
if (vecItems.GetFolderCount() == vecItems.Size())
{
// test for thumbs
for (int i = 0; i < vecItems.Size(); i++)
{
const CFileItemPtr pItem = vecItems[i];
if (pItem->HasThumbnail())
{
bThumbs = true;
break;
}
}
}
return bThumbs;
}
/// \brief Auto Switch method based on the current directory \e not containing ALL files and \e atleast one non-default thumb
/// \param bHideParentDirItems - are we not counting the ".." item?
/// \param vecItems Vector of FileItems
bool CAutoSwitch::ByFiles(bool bHideParentDirItems, const CFileItemList& vecItems)
{
bool bThumbs = false;
int iCompare = 0;
// parent directorys are visible, incrememt
if (!bHideParentDirItems)
{
iCompare = 1;
}
// confirm the list is not just files and folderback
if (vecItems.GetFolderCount() > iCompare)
{
// test for thumbs
for (int i = 0; i < vecItems.Size(); i++)
{
const CFileItemPtr pItem = vecItems[i];
if (pItem->HasThumbnail())
{
bThumbs = true;
break;
}
}
}
return bThumbs;
}
/// \brief Auto Switch method based on the percentage of non-default thumbs \e in the current directory
/// \param iPercent Percent of non-default thumbs to autoswitch on
/// \param vecItems Vector of FileItems
bool CAutoSwitch::ByThumbPercent(bool bHideParentDirItems, int iPercent, const CFileItemList& vecItems)
{
bool bThumbs = false;
int iNumThumbs = 0;
int iNumItems = vecItems.Size();
if (!bHideParentDirItems)
{
iNumItems--;
}
if (iNumItems <= 0) return false;
for (int i = 0; i < vecItems.Size(); i++)
{
const CFileItemPtr pItem = vecItems[i];
if (pItem->HasThumbnail())
{
iNumThumbs++;
float fTempPercent = ( (float)iNumThumbs / (float)iNumItems ) * (float)100;
if (fTempPercent >= (float)iPercent)
{
bThumbs = true;
break;
}
}
}
return bThumbs;
}
/// \brief Auto Switch method based on whether there is more than 25% files.
/// \param iPercent Percent of non-default thumbs to autoswitch on
bool CAutoSwitch::ByFileCount(const CFileItemList& vecItems)
{
if (vecItems.Size() == 0) return false;
float fPercent = (float)vecItems.GetFileCount() / vecItems.Size();
return (fPercent > 0.25);
}
// returns true if:
// 1. Have more than 75% folders and
// 2. Have more than percent folders with thumbs
bool CAutoSwitch::ByFolderThumbPercentage(bool hideParentDirItems, int percent, const CFileItemList &vecItems)
{
int numItems = vecItems.Size();
if (!hideParentDirItems)
numItems--;
if (numItems <= 0) return false;
int fileCount = vecItems.GetFileCount();
if (fileCount > 0.25f * numItems) return false;
int numThumbs = 0;
for (int i = 0; i < vecItems.Size(); i++)
{
const CFileItemPtr item = vecItems[i];
if (item->m_bIsFolder && item->HasThumbnail())
{
numThumbs++;
if (numThumbs >= 0.01f * percent * (numItems - fileCount))
return true;
}
}
return false;
}
float CAutoSwitch::MetadataPercentage(const CFileItemList &vecItems)
{
int count = 0;
int total = vecItems.Size();
for (int i = 0; i < vecItems.Size(); i++)
{
const CFileItemPtr item = vecItems[i];
if(item->HasMusicInfoTag()
|| item->HasVideoInfoTag()
|| item->HasPictureInfoTag()
|| item->HasProperty("Addon.ID"))
count++;
if(item->IsParentFolder())
total--;
}
return (float)count / total;
}
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