| 1 | // |
| 2 | // filelistmodel.cpp - A ROM chooser |
| 3 | // |
| 4 | // by James Hammons |
| 5 | // (C) 2010 Underground Software |
| 6 | // |
| 7 | // JLH = James Hammons <jlhamm@acm.org> |
| 8 | // |
| 9 | // Who When What |
| 10 | // --- ---------- ------------------------------------------------------------- |
| 11 | // JLH 02/01/2010 Created this file |
| 12 | // JLH 07/05/2011 Fixed model to not reset itself with each new row insertion |
| 13 | // JLH 07/07/2011 Added code to help the built-in keyboard based auto-search |
| 14 | // of the QListView class |
| 15 | // |
| 16 | |
| 17 | // Note that we have to put in convenience functions to the model for adding data |
| 18 | // and calling reset() to tell the view(s) that the model has changed. So that much |
| 19 | // should be simple. According to the docs, we have to reimplement flags() in the |
| 20 | // QAbstractListModel subclass, but in the example given below they don't. Not sure |
| 21 | // if it's necessary or not. |
| 22 | |
| 23 | #include "filelistmodel.h" |
| 24 | |
| 25 | #include "filedb.h" |
| 26 | |
| 27 | |
| 28 | FileListModel::FileListModel(QObject * parent/*= 0*/): QAbstractListModel(parent) |
| 29 | { |
| 30 | } |
| 31 | |
| 32 | int FileListModel::rowCount(const QModelIndex & /*parent = QModelIndex()*/) const |
| 33 | { |
| 34 | return list.size(); |
| 35 | } |
| 36 | |
| 37 | QVariant FileListModel::data(const QModelIndex & index, int role) const |
| 38 | { |
| 39 | if (role == FLM_LABEL) |
| 40 | return list.at(index.row()).label; |
| 41 | else if (role == FLM_INDEX) |
| 42 | return (uint)list.at(index.row()).dbIndex; |
| 43 | else if (role == FLM_FILENAME) |
| 44 | return list.at(index.row()).filename; |
| 45 | else if (role == FLM_FILESIZE) |
| 46 | return (uint)list.at(index.row()).fileSize; |
| 47 | else if (role == FLM_UNIVERSALHDR) |
| 48 | return (uint)list.at(index.row()).hasUniversalHeader; |
| 49 | else if (role == FLM_FILETYPE) |
| 50 | return (uint)list.at(index.row()).fileType; |
| 51 | else if (role == FLM_CRC) |
| 52 | return (uint)list.at(index.row()).crc; |
| 53 | else if (role == Qt::DisplayRole) |
| 54 | { |
| 55 | // The QListView uses this role to do keyboard based searching, |
| 56 | // so we help it along by giving it what it needs to do the job. :-) |
| 57 | unsigned long dbIndex = list.at(index.row()).dbIndex; |
| 58 | QString filename = list.at(index.row()).filename; |
| 59 | QString nameToMatch; |
| 60 | |
| 61 | // Pull name from file DB, otherwise, use the filename... |
| 62 | if (dbIndex != 0xFFFFFFFF) |
| 63 | nameToMatch = romList[dbIndex].name; |
| 64 | else |
| 65 | { |
| 66 | int lastSlashPos = filename.lastIndexOf('/'); |
| 67 | nameToMatch = filename.mid(lastSlashPos + 1); |
| 68 | } |
| 69 | |
| 70 | return nameToMatch; |
| 71 | } |
| 72 | |
| 73 | return QVariant(); |
| 74 | } |
| 75 | |
| 76 | QVariant FileListModel::headerData(int/* section*/, Qt::Orientation/* orientation*/, int role/*= Qt::DisplayRole*/) const |
| 77 | { |
| 78 | // This seems more like what we want... |
| 79 | if (role == Qt::SizeHintRole) |
| 80 | return QSize(1, 1); |
| 81 | |
| 82 | return QVariant(); |
| 83 | } |
| 84 | |
| 85 | void FileListModel::AddData(unsigned long index, QString str, QImage img, unsigned long size) |
| 86 | { |
| 87 | // Assuming that both QString and QImage have copy constructors, this should work. |
| 88 | FileListData data; |
| 89 | |
| 90 | data.dbIndex = index; |
| 91 | data.fileSize = size; |
| 92 | data.filename = str; |
| 93 | data.label = img; |
| 94 | |
| 95 | // Let's try this: |
| 96 | beginInsertRows(QModelIndex(), list.size(), list.size()); |
| 97 | list.push_back(data); |
| 98 | endInsertRows(); |
| 99 | } |
| 100 | |
| 101 | void FileListModel::AddData(unsigned long index, QString str, QImage img, unsigned long size, bool univHdr, uint32_t type, uint32_t fileCrc) |
| 102 | { |
| 103 | // Assuming that both QString and QImage have copy constructors, this should work. |
| 104 | FileListData data; |
| 105 | |
| 106 | data.dbIndex = index; |
| 107 | data.fileSize = size; |
| 108 | data.filename = str; |
| 109 | data.label = img; |
| 110 | data.hasUniversalHeader = univHdr; |
| 111 | data.fileType = type; |
| 112 | data.crc = fileCrc; |
| 113 | |
| 114 | // Let's try this: |
| 115 | beginInsertRows(QModelIndex(), list.size(), list.size()); |
| 116 | list.push_back(data); |
| 117 | endInsertRows(); |
| 118 | } |
| 119 | |
| 120 | void FileListModel::ClearData(void) |
| 121 | { |
| 122 | if (list.size() == 0) |
| 123 | return; |
| 124 | |
| 125 | beginResetModel(); |
| 126 | list.clear(); |
| 127 | endResetModel(); |
| 128 | } |
| 129 | |
| 130 | //FileListData FileListModel::GetData(const QModelIndex & index) const |
| 131 | //{ |
| 132 | // return list.at(index.row()); |
| 133 | //} |