Muldersoft/LameXP
Muldersoft/LameXP
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Rewrote FileListModel class to use a QHash map internally. This should speed-up the lookup, especially when adding a huge number of files.

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This commit is contained in:
LoRd_MuldeR 2012-05-04 16:39:02 +02:00
parent 5d69b91c5b
commit b00b527897
2 changed files with 54 additions and 44 deletions
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97
src/Model_FileList.cpp
View File

@ -32,6 +32,7 @@
#define EXPAND(STR) QString(STR).leftJustified(96, ' ')
#define CHECK_HDR(STR,NAM) (!(STR).compare((NAM), Qt::CaseInsensitive))
#define MAKE_KEY(PATH) (QDir::fromNativeSeparators(PATH).toLower())
////////////////////////////////////////////////////////////
// Constructor & Destructor
@ -68,10 +69,10 @@ QVariant FileListModel::data(const QModelIndex &index, int role) const
switch(index.column())
{
case 0:
return m_fileList.at(index.row()).fileName();
return m_fileStore.value(m_fileList.at(index.row())).fileName();
break;
case 1:
return QDir::toNativeSeparators(m_fileList.at(index.row()).filePath());
return QDir::toNativeSeparators(m_fileStore.value(m_fileList.at(index.row())).filePath());
break;
default:
return QVariant();
@ -136,33 +137,28 @@ QVariant FileListModel::headerData(int section, Qt::Orientation orientation, int
void FileListModel::addFile(const QString &filePath)
{
QFileInfo fileInfo(filePath);
const QString key = MAKE_KEY(fileInfo.canonicalFilePath());
for(int i = 0; i < m_fileList.count(); i++)
if(!m_fileStore.contains(key))
{
if(m_fileList.at(i).filePath().compare(fileInfo.canonicalFilePath(), Qt::CaseInsensitive) == 0)
{
return;
}
beginInsertRows(QModelIndex(), m_fileList.count(), m_fileList.count());
m_fileStore.insert(key, AudioFileModel(fileInfo.canonicalFilePath(), fileInfo.baseName()));
m_fileList.append(key);
endInsertRows();
}
beginResetModel();
m_fileList.append(AudioFileModel(fileInfo.canonicalFilePath(), fileInfo.baseName()));
endResetModel();
}
void FileListModel::addFile(const AudioFileModel &file)
{
for(int i = 0; i < m_fileList.count(); i++)
{
if(m_fileList.at(i).filePath().compare(file.filePath(), Qt::CaseInsensitive) == 0)
{
return;
}
}
const QString key = MAKE_KEY(file.filePath());
beginResetModel();
m_fileList.append(file);
endResetModel();
if(!m_fileStore.contains(key))
{
beginInsertRows(QModelIndex(), m_fileList.count(), m_fileList.count());
m_fileStore.insert(key, file);
m_fileList.append(key);
endInsertRows();
}
}
bool FileListModel::removeFile(const QModelIndex &index)
@ -170,6 +166,7 @@ bool FileListModel::removeFile(const QModelIndex &index)
if(index.row() >= 0 && index.row() < m_fileList.count())
{
beginResetModel();
m_fileStore.remove(m_fileList.at(index.row()));
m_fileList.removeAt(index.row());
endResetModel();
return true;
@ -184,6 +181,7 @@ void FileListModel::clearFiles(void)
{
beginResetModel();
m_fileList.clear();
m_fileStore.clear();
endResetModel();
}
@ -216,15 +214,21 @@ AudioFileModel FileListModel::getFile(const QModelIndex &index)
AudioFileModel &FileListModel::operator[] (const QModelIndex &index)
{
return m_fileList[index.row()];
const QString key = m_fileList.at(index.row());
return m_fileStore[key];
}
bool FileListModel::setFile(const QModelIndex &index, const AudioFileModel &audioFile)
{
if(index.row() >= 0 && index.row() < m_fileList.count())
{
const QString oldKey = m_fileList.at(index.row());
const QString newKey = MAKE_KEY(audioFile.filePath());
beginResetModel();
m_fileList.replace(index.row(), audioFile);
m_fileList.replace(index.row(), newKey);
m_fileStore.remove(oldKey);
m_fileStore.insert(newKey, audioFile);
endResetModel();
return true;
}
@ -242,13 +246,15 @@ int FileListModel::exportToCsv(const QString &outFile)
for(int i = 0; i < nFiles; i++)
{
if(m_fileList.at(i).filePosition() > 0) havePosition = true;
if(!m_fileList.at(i).fileName().isEmpty()) haveTitle = true;
if(!m_fileList.at(i).fileArtist().isEmpty()) haveArtist = true;
if(!m_fileList.at(i).fileAlbum().isEmpty()) haveAlbum = true;
if(!m_fileList.at(i).fileGenre().isEmpty()) haveGenre = true;
if(m_fileList.at(i).fileYear() > 0) haveYear = true;
if(!m_fileList.at(i).fileComment().isEmpty()) haveComment = true;
AudioFileModel current = m_fileStore.value(m_fileList.at(i));
if(current.filePosition() > 0) havePosition = true;
if(!current.fileName().isEmpty()) haveTitle = true;
if(!current.fileArtist().isEmpty()) haveArtist = true;
if(!current.fileAlbum().isEmpty()) haveAlbum = true;
if(!current.fileGenre().isEmpty()) haveGenre = true;
if(current.fileYear() > 0) haveYear = true;
if(!current.fileComment().isEmpty()) haveComment = true;
}
if(!(haveTitle || haveArtist || haveAlbum || haveGenre || haveYear || haveComment))
@ -284,14 +290,15 @@ int FileListModel::exportToCsv(const QString &outFile)
for(int i = 0; i < nFiles; i++)
{
QStringList line;
AudioFileModel current = m_fileStore.value(m_fileList.at(i));
if(havePosition) line << QString::number(m_fileList.at(i).filePosition());
if(haveTitle) line << m_fileList.at(i).fileName().trimmed();
if(haveArtist) line << m_fileList.at(i).fileArtist().trimmed();
if(haveAlbum) line << m_fileList.at(i).fileAlbum().trimmed();
if(haveGenre) line << m_fileList.at(i).fileGenre().trimmed();
if(haveYear) line << QString::number(m_fileList.at(i).fileYear());
if(haveComment) line << m_fileList.at(i).fileComment().trimmed();
if(havePosition) line << QString::number(current.filePosition());
if(haveTitle) line << current.fileName().trimmed();
if(haveArtist) line << current.fileArtist().trimmed();
if(haveAlbum) line << current.fileAlbum().trimmed();
if(haveGenre) line << current.fileGenre().trimmed();
if(haveYear) line << QString::number(current.fileYear());
if(haveComment) line << current.fileComment().trimmed();
if(file.write(line.replaceInStrings(";", ",").join(";").append("\r\n").toUtf8()) < 1)
{
@ -431,6 +438,8 @@ int FileListModel::importFromCsv(QWidget *parent, const QString &inFile)
continue;
}
const QString key = m_fileList[i];
for(int j = 0; j < nCols; j++)
{
if(ignore[j])
@ -441,38 +450,38 @@ int FileListModel::importFromCsv(QWidget *parent, const QString &inFile)
{
bool ok = false;
unsigned int temp = data.at(j).trimmed().toUInt(&ok);
if(ok) m_fileList[i].setFilePosition(temp);
if(ok) m_fileStore[key].setFilePosition(temp);
}
else if(CHECK_HDR(header.at(j), "TITLE"))
{
QString temp = data.at(j).trimmed();
if(!temp.isEmpty()) m_fileList[i].setFileName(temp);
if(!temp.isEmpty()) m_fileStore[key].setFileName(temp);
}
else if(CHECK_HDR(header.at(j), "ARTIST"))
{
QString temp = data.at(j).trimmed();
if(!temp.isEmpty()) m_fileList[i].setFileArtist(temp);
if(!temp.isEmpty()) m_fileStore[key].setFileArtist(temp);
}
else if(CHECK_HDR(header.at(j), "ALBUM"))
{
QString temp = data.at(j).trimmed();
if(!temp.isEmpty()) m_fileList[i].setFileAlbum(temp);
if(!temp.isEmpty()) m_fileStore[key].setFileAlbum(temp);
}
else if(CHECK_HDR(header.at(j), "GENRE"))
{
QString temp = data.at(j).trimmed();
if(!temp.isEmpty()) m_fileList[i].setFileGenre(temp);
if(!temp.isEmpty()) m_fileStore[key].setFileGenre(temp);
}
else if(CHECK_HDR(header.at(j), "YEAR"))
{
bool ok = false;
unsigned int temp = data.at(j).trimmed().toUInt(&ok);
if(ok) m_fileList[i].setFileYear(temp);
if(ok) m_fileStore[key].setFileYear(temp);
}
else if(CHECK_HDR(header.at(j), "COMMENT"))
{
QString temp = data.at(j).trimmed();
if(!temp.isEmpty()) m_fileList[i].setFileComment(temp);
if(!temp.isEmpty()) m_fileStore[key].setFileComment(temp);
}
else
{

3
src/Model_FileList.h
View File

@ -70,7 +70,8 @@ public slots:
void addFile(const AudioFileModel &file);
private:
QList<AudioFileModel> m_fileList;
QList<QString> m_fileList;
QHash<QString, AudioFileModel> m_fileStore;
const QIcon m_fileIcon;
static bool checkArray(const bool *a, const bool val, size_t len);