File indexing completed on 2024-06-16 05:01:29

 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
 
    This file is part of the Trojita Qt IMAP e-mail client,
    http://trojita.flaska.net/
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of
    the License or (at your option) version 3 or any later version
    accepted by the membership of KDE e.V. (or its successor approved
    by the membership of KDE e.V.), which shall act as a proxy
    defined in Section 14 of version 3 of the license.
 
    This program 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 #ifndef MSGLISTVIEW_H
 #define MSGLISTVIEW_H
 
 #include <QHeaderView>
 #include <QTreeView>
 #include "Imap/Model/FavoriteTagsModel.h"
 
 class QSignalMapper;
 
 namespace Imap {
 namespace Mailbox {
 class PrettyMsgListModel;
 }
 }
 
 namespace Gui {
 
 /** @short A slightly tweaked QTreeView optimized for showing a list of messages in one mailbox
 
 The optimizations (or rather modifications) include:
 - automatically expanding a whole subtree when root item is expanded
 - setting up reasonable size hints for all columns
 */
 class MsgListView : public QTreeView
 {
     Q_OBJECT
 public:
     explicit MsgListView(QWidget *parent, Imap::Mailbox::FavoriteTagsModel *m_favoriteTagsModel);
     virtual ~MsgListView() {}
     void setModel(QAbstractItemModel *model);
     void setAutoActivateAfterKeyNavigation(bool enabled);
     void updateActionsAfterRestoredState();
     virtual int sizeHintForColumn(int column) const;
     QHeaderView::ResizeMode resizeModeForColumn(const int column) const;
 protected:
     void keyPressEvent(QKeyEvent *ke);
     void keyReleaseEvent(QKeyEvent *ke);
     virtual void startDrag(Qt::DropActions supportedActions);
     bool event(QEvent *event);
     /** @short Returns a list of all selected and related (collapsed) message indexes for column 0 */
     QModelIndexList selectedTree() const;
 private slots:
     void slotFixSize();
     /** @short Expand all items below current root index */
     void slotExpandWholeSubtree(const QModelIndex &rootIndex);
     /** @short Update header actions for showing/hiding columns */
     void slotUpdateHeaderActions();
     /** @short Show/hide a corresponding column */
     void slotHeaderSectionVisibilityToggled(int section);
     /** @short Get ThreadingMsgListModel index and call the next handler */
     void slotMsgListModelRowsAboutToBeRemoved(const QModelIndex &parent, int start, int end);
     /** @short Keep the cursor in place for better keyboard usability */
     void slotThreadingMsgListModelRowAboutToBeRemoved(const QModelIndex &index);
     /** @short Pick up the change of the sort critera */
     void slotHandleSortCriteriaChanged(int column, Qt::SortOrder order);
     /** @short conditionally emits activated(currentIndex()) for keyboard events */
     void slotCurrentActivated();
     void slotHandleNewColumns(int oldCount, int newCount);
 private:
     /** @short Try to move the cursor to next message */
     void setCurrentIndexToNextValid(const QModelIndex &current);
     static Imap::Mailbox::PrettyMsgListModel *findPrettyMsgListModel(QAbstractItemModel *model);
 
     QSignalMapper *headerFieldsMapper;
     QTimer *m_naviActivationTimer;
     bool m_autoActivateAfterKeyNavigation;
     bool m_autoResizeSections;
 
     friend class MainWindow; // needs access to slotHandleNewColumns
 };
 
 }
 
 #endif // MSGLISTVIEW_H