Resource[Tree]Model: moved common functionality into base class
All functionality which is not related to a ResourceTreeModel has been moved into ResourceModel base class, allowing to share them in other resource model implementations.
This commit is contained in:
Tobias Doerffel
84
include/ResourceModel.h
Normal file
84
include/ResourceModel.h
Normal file
@@ -0,0 +1,84 @@
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/*
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* ResourceModel.h - base class for all resource models
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*
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* Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _RESOURCE_MODEL_H
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#define _RESOURCE_MODEL_H
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#include <QtCore/QAbstractItemModel>
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#include "ResourceDB.h"
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class ResourceModel : public QAbstractItemModel
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{
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Q_OBJECT
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public:
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ResourceModel( ResourceDB * _db, QObject * _parent = NULL );
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virtual ~ResourceModel()
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{
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}
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virtual QVariant data( const QModelIndex & _idx,
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int _role = Qt::DisplayRole ) const;
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virtual Qt::ItemFlags flags( const QModelIndex & _index ) const;
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virtual int columnCount( const QModelIndex & _parent = QModelIndex() ) const
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{
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return 1;
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}
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// return list of possible MIME types for items in this model
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virtual QStringList mimeTypes() const;
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// used for drag'n'drop - return proper MIME data for indexes
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virtual QMimeData * mimeData( const QModelIndexList & _indexes ) const;
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// return ResourceTreeItem belonging to a certain index
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static inline ResourceTreeItem * treeItem( const QModelIndex & _idx )
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{
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return static_cast<ResourceTreeItem *>(
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_idx.internalPointer() );
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}
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// return ResourceItem belonging to a certain index
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static inline ResourceItem * item( const QModelIndex & _idx )
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{
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return treeItem( _idx )->item();
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}
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int totalItems() const;
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int shownItems() const;
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protected:
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ResourceDB * m_db;
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signals:
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void itemsChanged();
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} ;
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#endif
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@@ -1,5 +1,5 @@
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/*
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* ResourceTreeModel.h - tree-model for ResourceDB
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* ResourceTreeModel.h - a tree model implementation for resources
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*
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* Copyright (c) 2008-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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@@ -25,62 +25,26 @@
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#ifndef _RESOURCE_TREE_MODEL_H
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#define _RESOURCE_TREE_MODEL_H
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#include <QtCore/QAbstractItemModel>
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#include "ResourceDB.h"
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#include "ResourceModel.h"
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class ResourceTreeModel : public QAbstractItemModel
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class ResourceTreeModel : public ResourceModel
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{
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Q_OBJECT
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public:
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ResourceTreeModel( ResourceDB * _db, QObject * _parent = NULL );
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virtual ~ResourceTreeModel()
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{
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}
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virtual QVariant data( const QModelIndex & _idx,
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int _role = Qt::DisplayRole ) const;
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virtual Qt::ItemFlags flags( const QModelIndex & _index ) const;
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int rowCount( const QModelIndex & _parent = QModelIndex() ) const;
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virtual int columnCount( const QModelIndex & _parent =
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QModelIndex() ) const
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{
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return 1;
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}
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virtual QModelIndex index( int _row, int _col,
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const QModelIndex & _parent = QModelIndex() ) const;
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virtual QModelIndex parent( const QModelIndex & index ) const;
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// return list of possible MIME types for items in this model
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virtual QStringList mimeTypes() const;
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// used for drag'n'drop - return proper MIME data for indexes
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virtual QMimeData * mimeData( const QModelIndexList & _indexes ) const;
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void setFilter( const QString & _s );
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// return ResourceTreeItem belonging to a certain index
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static inline ResourceTreeItem * treeItem( const QModelIndex & _idx )
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{
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return static_cast<ResourceTreeItem *>(
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_idx.internalPointer() );
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}
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// return ResourceItem belonging to a certain index
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static inline ResourceItem * item( const QModelIndex & _idx )
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{
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return treeItem( _idx )->item();
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}
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int totalItems() const;
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int shownItems() const;
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private:
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bool filterItems( ResourceTreeItem * _item,
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@@ -91,12 +55,6 @@ private:
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bool _hidden,
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bool _recursive = true );
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ResourceDB * m_db;
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signals:
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void itemsChanged( void );
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} ;
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#endif
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257
src/core/ResourceModel.cpp
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257
src/core/ResourceModel.cpp
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@@ -0,0 +1,257 @@
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/*
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* ResourceModel.cpp - implementation of ResourceModel
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*
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* Copyright (c) 2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program 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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* General Public License for more details.
|
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*
|
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* You should have received a copy of the GNU General Public
|
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* License along with this program (see COPYING); if not, write to the
|
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#include <QtGui/QPainter>
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#include "ResourceModel.h"
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#include "embed.h"
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#include "plugin.h"
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#include "string_pair_drag.h"
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ResourceModel::ResourceModel( ResourceDB * _db, QObject * _parent ) :
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QAbstractItemModel( _parent ),
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m_db( _db )
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{
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setSupportedDragActions( Qt::CopyAction );
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connect( m_db, SIGNAL( itemsChanged() ),
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this, SIGNAL( itemsChanged() ) );
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}
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QVariant ResourceModel::data( const QModelIndex & _idx, int _role ) const
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{
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static QHash<ResourceItem::Type, QPixmap> pixmapCache;
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if( _idx.isValid() )
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{
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ResourceTreeItem * treeItem = this->treeItem( _idx );
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ResourceItem * item = treeItem->item();
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if( _role == Qt::DisplayRole )
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{
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if( treeItem->parent() == m_db->topLevelNode() )
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{
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switch( item->baseDir() )
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{
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case ResourceItem::BaseWorkingDir:
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return tr( "My LMMS files" );
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case ResourceItem::BaseDataDir:
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return tr( "Shipped LMMS files" );
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case ResourceItem::BaseURL:
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return item->provider()->url();
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default:
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break;
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}
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}
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return item->name();
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}
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else if( _role == Qt::DecorationRole )
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{
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if( treeItem->parent() == m_db->topLevelNode() )
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{
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switch( item->baseDir() )
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{
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case ResourceItem::BaseWorkingDir:
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return embed::getIconPixmap( "mimetypes/folder-workingdir", 24, 24 );
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case ResourceItem::BaseDataDir:
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return embed::getIconPixmap( "mimetypes/folder-datadir", 24, 24 );
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case ResourceItem::BaseURL:
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return embed::getIconPixmap( "mimetypes/folder-web", 24, 24 );
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default:
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break;
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}
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}
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if( pixmapCache.contains( item->type() ) )
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{
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return pixmapCache[item->type()];
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}
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QPixmap pix;
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switch( item->type() )
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{
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case ResourceItem::TypeDirectory:
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pix = embed::getIconPixmap( "mimetypes/folder", 24, 24 );
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break;
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case ResourceItem::TypeSample:
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pix = embed::getIconPixmap( "mimetypes/sample", 24, 24 );
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break;
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case ResourceItem::TypePreset:
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pix = embed::getIconPixmap( "mimetypes/preset", 24, 24 );
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break;
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case ResourceItem::TypePluginSpecificResource:
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{
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// always cache plugin-specific pixmaps as their generation
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// is quite expensive compared to hash-lookup
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static QHash<QString, QPixmap> pluginPixmapCache;
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const QString ext = item->nameExtension();
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if( pluginPixmapCache.contains( ext ) )
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{
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return pluginPixmapCache[ext];
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}
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// iterate through all plugins
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QVector<plugin::descriptor> descriptors;
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plugin::getDescriptorsOfAvailPlugins( descriptors );
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for( QVector<plugin::descriptor>::iterator it = descriptors.begin();
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it != descriptors.end(); ++it )
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{
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if( it->supportsFileType( ext ) )
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{
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pix = embed::getIconPixmap( "mimetypes/unknown" );
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QPainter p( &pix );
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const QPixmap logo = it->logo->pixmap().
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scaled( 40, 40, Qt::IgnoreAspectRatio,
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Qt::SmoothTransformation );
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p.drawPixmap( ( pix.width() - logo.width() ) / 2,
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( pix.height() - logo.height() ) / 2,
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logo );
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p.end();
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pix = pix.scaled( 24, 24, Qt::IgnoreAspectRatio,
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Qt::SmoothTransformation );
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pluginPixmapCache[ext] = pix;
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return pix;
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}
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}
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return embed::getIconPixmap( "mimetypes/preset", 24, 24 );
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}
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case ResourceItem::TypeProject:
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pix = embed::getIconPixmap( "project_file", 24, 24 );
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break;
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case ResourceItem::TypeMidiFile:
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pix = embed::getIconPixmap( "mimetypes/midi", 24, 24 );
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break;
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case ResourceItem::TypeImage:
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pix = embed::getIconPixmap( "mimetypes/image", 24, 24 );
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break;
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case ResourceItem::TypePlugin:
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pix = embed::getIconPixmap( "mimetypes/plugin", 24, 24 );
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break;
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default:
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pix = embed::getIconPixmap( "mimetypes/unknown", 24, 24 );
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break;
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} // end switch( item->type() )
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pixmapCache[item->type()] = pix;
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return pix;
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} // end if( _role == Qt::DecorationRole )
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}
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return QVariant();
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}
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Qt::ItemFlags ResourceModel::flags( const QModelIndex & _index ) const
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{
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Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
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if( _index.isValid() )
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{
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switch( item( _index )->type() )
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{
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case ResourceItem::TypeSample:
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case ResourceItem::TypePreset:
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case ResourceItem::TypePluginSpecificResource:
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case ResourceItem::TypeProject:
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case ResourceItem::TypeMidiFile:
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case ResourceItem::TypeImage:
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case ResourceItem::TypePlugin:
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flags |= Qt::ItemIsDragEnabled;
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break;
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default:
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break;
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}
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}
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return flags;
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}
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QStringList ResourceModel::mimeTypes() const
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{
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return QStringList() << ResourceItem::mimeKey();
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}
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QMimeData * ResourceModel::mimeData( const QModelIndexList & _list ) const
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{
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// we'll only process first item - look whether it is valid
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if( !_list.first().isValid() )
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{
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return NULL;
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}
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// create a QMimeData object containing hash of current item
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return stringPairDrag::createMimeData( ResourceItem::mimeKey(),
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item( _list.first() )->hash() );
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}
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int ResourceModel::totalItems() const
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{
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const ResourceDB::ItemHashMap & items = m_db->items();
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int num = 0;
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foreach( const ResourceItem * i, items )
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{
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if( i->type() != ResourceItem::TypeDirectory )
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{
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++num;
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}
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}
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return num;
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}
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int ResourceModel::shownItems() const
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{
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const ResourceDB::ItemHashMap & items = m_db->items();
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int num = 0;
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foreach( const ResourceItem * i, items )
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{
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if( i->type() != ResourceItem::TypeDirectory &&
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i->isHidden( this ) == false )
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{
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++num;
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}
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}
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return num;
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}
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#include "moc_ResourceModel.cxx"
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/* vim: set tw=0 noexpandtab: */
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@@ -31,160 +31,8 @@
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ResourceTreeModel::ResourceTreeModel( ResourceDB * _db, QObject * _parent ) :
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QAbstractItemModel( _parent ),
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m_db( _db )
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ResourceModel( _db, _parent )
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{
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setSupportedDragActions( Qt::CopyAction );
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connect( m_db, SIGNAL( itemsChanged() ),
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this, SIGNAL( itemsChanged() ) );
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}
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QVariant ResourceTreeModel::data( const QModelIndex & _idx, int _role ) const
|
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{
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static QHash<ResourceItem::Type, QPixmap> pixmapCache;
|
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if( _idx.isValid() )
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{
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ResourceTreeItem * treeItem = this->treeItem( _idx );
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ResourceItem * item = treeItem->item();
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if( _role == Qt::DisplayRole )
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{
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if( treeItem->parent() == m_db->topLevelNode() )
|
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{
|
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switch( item->baseDir() )
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{
|
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case ResourceItem::BaseWorkingDir:
|
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return tr( "My LMMS files" );
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case ResourceItem::BaseDataDir:
|
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return tr( "Shipped LMMS files" );
|
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case ResourceItem::BaseURL:
|
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return item->provider()->url();
|
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default:
|
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break;
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}
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}
|
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return item->name();
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}
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else if( _role == Qt::DecorationRole )
|
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{
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if( treeItem->parent() == m_db->topLevelNode() )
|
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{
|
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switch( item->baseDir() )
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{
|
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case ResourceItem::BaseWorkingDir:
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return embed::getIconPixmap( "mimetypes/folder-workingdir", 24, 24 );
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case ResourceItem::BaseDataDir:
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return embed::getIconPixmap( "mimetypes/folder-datadir", 24, 24 );
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case ResourceItem::BaseURL:
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return embed::getIconPixmap( "mimetypes/folder-web", 24, 24 );
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default:
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break;
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}
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}
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if( pixmapCache.contains( item->type() ) )
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{
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return pixmapCache[item->type()];
|
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}
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QPixmap pix;
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switch( item->type() )
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{
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case ResourceItem::TypeDirectory:
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pix = embed::getIconPixmap( "mimetypes/folder", 24, 24 );
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break;
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case ResourceItem::TypeSample:
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pix = embed::getIconPixmap( "mimetypes/sample", 24, 24 );
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break;
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case ResourceItem::TypePreset:
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pix = embed::getIconPixmap( "mimetypes/preset", 24, 24 );
|
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break;
|
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case ResourceItem::TypePluginSpecificResource:
|
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{
|
||||
// always cache plugin-specific pixmaps as their generation
|
||||
// is quite expensive compared to hash-lookup
|
||||
static QHash<QString, QPixmap> pluginPixmapCache;
|
||||
const QString ext = item->nameExtension();
|
||||
if( pluginPixmapCache.contains( ext ) )
|
||||
{
|
||||
return pluginPixmapCache[ext];
|
||||
}
|
||||
|
||||
// iterate through all plugins
|
||||
QVector<plugin::descriptor> descriptors;
|
||||
plugin::getDescriptorsOfAvailPlugins( descriptors );
|
||||
|
||||
for( QVector<plugin::descriptor>::iterator it = descriptors.begin();
|
||||
it != descriptors.end(); ++it )
|
||||
{
|
||||
if( it->supportsFileType( ext ) )
|
||||
{
|
||||
pix = embed::getIconPixmap( "mimetypes/unknown" );
|
||||
QPainter p( &pix );
|
||||
const QPixmap logo = it->logo->pixmap().
|
||||
scaled( 40, 40, Qt::IgnoreAspectRatio,
|
||||
Qt::SmoothTransformation );
|
||||
p.drawPixmap( ( pix.width() - logo.width() ) / 2,
|
||||
( pix.height() - logo.height() ) / 2,
|
||||
logo );
|
||||
p.end();
|
||||
pix = pix.scaled( 24, 24, Qt::IgnoreAspectRatio,
|
||||
Qt::SmoothTransformation );
|
||||
pluginPixmapCache[ext] = pix;
|
||||
return pix;
|
||||
}
|
||||
}
|
||||
return embed::getIconPixmap( "mimetypes/preset", 24, 24 );
|
||||
}
|
||||
case ResourceItem::TypeProject:
|
||||
pix = embed::getIconPixmap( "project_file", 24, 24 );
|
||||
break;
|
||||
case ResourceItem::TypeMidiFile:
|
||||
pix = embed::getIconPixmap( "mimetypes/midi", 24, 24 );
|
||||
break;
|
||||
case ResourceItem::TypeImage:
|
||||
pix = embed::getIconPixmap( "mimetypes/image", 24, 24 );
|
||||
break;
|
||||
case ResourceItem::TypePlugin:
|
||||
pix = embed::getIconPixmap( "mimetypes/plugin", 24, 24 );
|
||||
break;
|
||||
default:
|
||||
pix = embed::getIconPixmap( "mimetypes/unknown", 24, 24 );
|
||||
break;
|
||||
} // end switch( item->type() )
|
||||
pixmapCache[item->type()] = pix;
|
||||
return pix;
|
||||
} // end if( _role == Qt::DecorationRole )
|
||||
}
|
||||
return QVariant();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
Qt::ItemFlags ResourceTreeModel::flags( const QModelIndex & _index ) const
|
||||
{
|
||||
Qt::ItemFlags flags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
|
||||
if( _index.isValid() )
|
||||
{
|
||||
switch( item( _index )->type() )
|
||||
{
|
||||
case ResourceItem::TypeSample:
|
||||
case ResourceItem::TypePreset:
|
||||
case ResourceItem::TypePluginSpecificResource:
|
||||
case ResourceItem::TypeProject:
|
||||
case ResourceItem::TypeMidiFile:
|
||||
case ResourceItem::TypeImage:
|
||||
case ResourceItem::TypePlugin:
|
||||
flags |= Qt::ItemIsDragEnabled;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
return flags;
|
||||
}
|
||||
|
||||
|
||||
@@ -207,7 +55,7 @@ int ResourceTreeModel::rowCount( const QModelIndex & _parent ) const
|
||||
{
|
||||
parentItem = treeItem( _parent );
|
||||
}
|
||||
return parentItem->rowCount();
|
||||
return parentItem->rowCount( this );
|
||||
}
|
||||
|
||||
|
||||
@@ -232,9 +80,9 @@ QModelIndex ResourceTreeModel::index( int _row, int _col,
|
||||
parentItem = treeItem( _parent );
|
||||
}
|
||||
|
||||
if( _row < parentItem->rowCount() )
|
||||
if( _row < parentItem->rowCount( this ) )
|
||||
{
|
||||
return createIndex( _row, _col, parentItem->getChild( _row ) );
|
||||
return createIndex( _row, _col, parentItem->getChild( _row, this ) );
|
||||
}
|
||||
return QModelIndex();
|
||||
}
|
||||
@@ -259,7 +107,7 @@ QModelIndex ResourceTreeModel::parent( const QModelIndex & _idx ) const
|
||||
int row = 0;
|
||||
if( parentItem )
|
||||
{
|
||||
row = parentItem->row();
|
||||
row = parentItem->row( this );
|
||||
}
|
||||
return createIndex( row, 0, parentItem );
|
||||
}
|
||||
@@ -267,30 +115,6 @@ QModelIndex ResourceTreeModel::parent( const QModelIndex & _idx ) const
|
||||
|
||||
|
||||
|
||||
QStringList ResourceTreeModel::mimeTypes() const
|
||||
{
|
||||
return QStringList() << ResourceItem::mimeKey();
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
QMimeData * ResourceTreeModel::mimeData( const QModelIndexList & _list ) const
|
||||
{
|
||||
// we'll only process first item - look whether it is valid
|
||||
if( !_list.first().isValid() )
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// create a QMimeData object containing hash of current item
|
||||
return stringPairDrag::createMimeData( ResourceItem::mimeKey(),
|
||||
item( _list.first() )->hash() );
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
void ResourceTreeModel::setFilter( const QString & _s )
|
||||
{
|
||||
filterItems( m_db->topLevelNode(),
|
||||
@@ -305,42 +129,6 @@ void ResourceTreeModel::setFilter( const QString & _s )
|
||||
|
||||
|
||||
|
||||
int ResourceTreeModel::totalItems() const
|
||||
{
|
||||
const ResourceDB::ItemHashMap & items = m_db->items();
|
||||
int num = 0;
|
||||
foreach( const ResourceItem * i, items )
|
||||
{
|
||||
if( i->type() != ResourceItem::TypeDirectory )
|
||||
{
|
||||
++num;
|
||||
}
|
||||
}
|
||||
return num;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
int ResourceTreeModel::shownItems() const
|
||||
{
|
||||
const ResourceDB::ItemHashMap & items = m_db->items();
|
||||
int num = 0;
|
||||
foreach( const ResourceItem * i, items )
|
||||
{
|
||||
if( i->type() != ResourceItem::TypeDirectory &&
|
||||
i->treeItem()->isHidden() == false )
|
||||
{
|
||||
++num;
|
||||
}
|
||||
}
|
||||
return num;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
bool ResourceTreeModel::filterItems( ResourceTreeItem * _item,
|
||||
const QModelIndex & _parent,
|
||||
const QStringList & _keywords )
|
||||
@@ -403,9 +191,9 @@ void ResourceTreeModel::setHidden( ResourceTreeItem * _item,
|
||||
++row;
|
||||
}
|
||||
}
|
||||
if( _item->isHidden() != _hide )
|
||||
if( _item->item() && _item->item()->isHidden( this ) != _hide )
|
||||
{
|
||||
_item->setHidden( _hide );
|
||||
_item->item()->setHidden( _hide, this );
|
||||
|
||||
/* if( _hide )
|
||||
{
|
||||
@@ -426,7 +214,4 @@ void ResourceTreeModel::setHidden( ResourceTreeItem * _item,
|
||||
|
||||
|
||||
|
||||
|
||||
#include "moc_ResourceTreeModel.cxx"
|
||||
|
||||
/* vim: set tw=0 noexpandtab: */
|
||||
|
||||
Reference in New Issue
Block a user