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pcmanfm-qt-packaging/libfm-qt/proxyfoldermodel.h

111 lines
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/*
<one line to give the library's name and an idea of what it does.>
Copyright (C) 2012 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef FM_PROXYFOLDERMODEL_H
#define FM_PROXYFOLDERMODEL_H
#include "libfmqtglobals.h"
#include <QSortFilterProxyModel>
#include <libfm/fm.h>
#include <QList>
namespace Fm {
// a proxy model used to sort and filter FolderModel
class FolderModelItem;
class ProxyFolderModel;
class LIBFM_QT_API ProxyFolderModelFilter {
public:
virtual bool filterAcceptsRow(const ProxyFolderModel* model, FmFileInfo* info) const = 0;
virtual ~ProxyFolderModelFilter() {}
};
class LIBFM_QT_API ProxyFolderModel : public QSortFilterProxyModel {
Q_OBJECT
public:
public:
explicit ProxyFolderModel(QObject * parent = 0);
virtual ~ProxyFolderModel();
// only Fm::FolderModel is allowed for being sourceModel
virtual void setSourceModel(QAbstractItemModel* model);
void setShowHidden(bool show);
bool showHidden() {
return showHidden_;
}
void setFolderFirst(bool folderFirst);
bool folderFirst() {
return folderFirst_;
}
void setSortCaseSensitivity(Qt::CaseSensitivity cs) {
QSortFilterProxyModel::setSortCaseSensitivity(cs);
Q_EMIT sortFilterChanged();
}
bool showThumbnails() {
return showThumbnails_;
}
void setShowThumbnails(bool show);
int thumbnailSize() {
return thumbnailSize_;
}
void setThumbnailSize(int size);
FmFileInfo* fileInfoFromIndex(const QModelIndex& index) const;
virtual void sort(int column, Qt::SortOrder order = Qt::AscendingOrder);
virtual QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const;
void addFilter(ProxyFolderModelFilter* filter);
void removeFilter(ProxyFolderModelFilter* filter);
Q_SIGNALS:
void sortFilterChanged();
protected Q_SLOTS:
void onThumbnailLoaded(const QModelIndex& srcIndex, int size);
protected:
bool filterAcceptsRow(int source_row, const QModelIndex & source_parent) const;
bool lessThan(const QModelIndex & left, const QModelIndex & right) const;
// void reloadAllThumbnails();
private:
private:
bool showHidden_;
bool folderFirst_;
bool showThumbnails_;
int thumbnailSize_;
QList<ProxyFolderModelFilter*> filters_;
};
}
#endif // FM_PROXYFOLDERMODEL_H