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122 lines
3.9 KiB
122 lines
3.9 KiB
/*
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Copyright (C) 2012 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef FM_FOLDERMODEL_H
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#define FM_FOLDERMODEL_H
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#include "libfmqtglobals.h"
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#include <QAbstractListModel>
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#include <QIcon>
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#include <QImage>
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#include <libfm/fm.h>
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#include <QList>
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#include <QVector>
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#include <QLinkedList>
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#include <QPair>
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#include "foldermodelitem.h"
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namespace Fm {
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class LIBFM_QT_API FolderModel : public QAbstractListModel {
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Q_OBJECT
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public:
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enum Role {
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FileInfoRole = Qt::UserRole
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};
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enum ColumnId {
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ColumnFileName,
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ColumnFileType,
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ColumnFileSize,
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ColumnFileMTime,
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ColumnFileOwner,
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NumOfColumns
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};
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public:
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FolderModel();
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virtual ~FolderModel();
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FmFolder* folder() {
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return folder_;
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}
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void setFolder(FmFolder* new_folder);
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FmPath* path() {
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return folder_ ? fm_folder_get_path(folder_) : NULL;
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}
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int rowCount(const QModelIndex & parent = QModelIndex()) const;
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int columnCount (const QModelIndex & parent) const;
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QVariant data(const QModelIndex & index, int role) const;
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QVariant headerData(int section, Qt::Orientation orientation, int role) const;
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QModelIndex index(int row, int column, const QModelIndex & parent = QModelIndex()) const;
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QModelIndex parent( const QModelIndex & index ) const;
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// void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
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Qt::ItemFlags flags(const QModelIndex & index) const;
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virtual QStringList mimeTypes() const;
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virtual QMimeData* mimeData(const QModelIndexList & indexes) const;
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virtual Qt::DropActions supportedDropActions() const;
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virtual bool dropMimeData(const QMimeData* data, Qt::DropAction action, int row, int column, const QModelIndex& parent);
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FmFileInfo* fileInfoFromIndex(const QModelIndex& index) const;
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FolderModelItem* itemFromIndex(const QModelIndex& index) const;
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QImage thumbnailFromIndex(const QModelIndex& index, int size);
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void cacheThumbnails(int size);
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void releaseThumbnails(int size);
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Q_SIGNALS:
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void thumbnailLoaded(const QModelIndex& index, int size);
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public Q_SLOTS:
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void updateIcons();
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protected:
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static void onStartLoading(FmFolder* folder, gpointer user_data);
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static void onFinishLoading(FmFolder* folder, gpointer user_data);
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static void onFilesAdded(FmFolder* folder, GSList* files, gpointer user_data);
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static void onFilesChanged(FmFolder* folder, GSList* files, gpointer user_data);
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static void onFilesRemoved(FmFolder* folder, GSList* files, gpointer user_data);
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static void onThumbnailLoaded(FmThumbnailLoader *res, gpointer user_data);
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void insertFiles(int row, FmFileInfoList* files);
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void removeAll();
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QList<FolderModelItem>::iterator findItemByPath(FmPath* path, int* row);
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QList<FolderModelItem>::iterator findItemByName(const char* name, int* row);
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QList<FolderModelItem>::iterator findItemByFileInfo(FmFileInfo* info, int* row);
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private:
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FmFolder* folder_;
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// FIXME: should we use a hash table here so item lookup becomes much faster?
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QList<FolderModelItem> items;
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// record what size of thumbnails we should cache in an array of <size, refCount> pairs.
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QVector<QPair<int, int> > thumbnailRefCounts;
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QLinkedList<FmThumbnailLoader*> thumbnailResults;
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};
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}
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#endif // FM_FOLDERMODEL_H
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