src/sidebartreeview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "sidebartreeview.h"
  21
  22 #include "dolphincontroller.h"
  23 #include "dolphinmodel.h"
  24 #include "draganddrophelper.h"
  25
  26 #include <kfileitemdelegate.h>
  27 #include <QKeyEvent>
  28 #include <QPainter>
  29 #include <QHeaderView>
  30 #include <QScrollBar>
  31
  32 SidebarTreeView::SidebarTreeView(QWidget* parent) :
  33     KTreeView(parent)
  34 {
  35     setAcceptDrops(true);
  36     setUniformRowHeights(true);
  37     setSelectionMode(QAbstractItemView::SingleSelection);
  38     setEditTriggers(QAbstractItemView::NoEditTriggers);
  39     setSortingEnabled(true);
  40     setFrameStyle(QFrame::NoFrame);
  41     setDragDropMode(QAbstractItemView::DragDrop);
  42     setDropIndicatorShown(false);
  43     setAutoExpandDelay(300);
  44
  45     setVerticalScrollMode(QListView::ScrollPerPixel);
  46     setHorizontalScrollMode(QListView::ScrollPerPixel);
  47
  48     viewport()->setAttribute(Qt::WA_Hover);
  49
  50     QPalette palette = viewport()->palette();
  51     palette.setColor(viewport()->backgroundRole(), Qt::transparent);
  52     viewport()->setPalette(palette);
  53
  54     KFileItemDelegate* delegate = new KFileItemDelegate(this);
  55     setItemDelegate(delegate);
  56 }
  57
  58 SidebarTreeView::~SidebarTreeView()
  59 {
  60 }
  61
  62 bool SidebarTreeView::event(QEvent* event)
  63 {
  64     if (event->type() == QEvent::Polish) {
  65         // hide all columns except of the 'Name' column
  66         hideColumn(DolphinModel::Size);
  67         hideColumn(DolphinModel::ModifiedTime);
  68         hideColumn(DolphinModel::Permissions);
  69         hideColumn(DolphinModel::Owner);
  70         hideColumn(DolphinModel::Group);
  71         hideColumn(DolphinModel::Type);
  72         hideColumn(DolphinModel::Rating);
  73         hideColumn(DolphinModel::Tags);
  74         header()->hide();
  75     }
  76     else if (event->type() == QEvent::UpdateRequest) {
  77         // a wheel movement will scroll 1 item
  78         if (model()->rowCount() > 0) {
  79             verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
  80         }
  81     }
  82     else if (event->type() == QEvent::MetaCall) {
  83         resizeColumnToContents(DolphinModel::Name);
  84     }
  85
  86     return QTreeView::event(event);
  87 }
  88
  89 void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
  90 {
  91     DragAndDropHelper::startDrag(this, supportedActions);
  92 }
  93
  94 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
  95 {
  96     QTreeView::dragEnterEvent(event);
  97     if (event->mimeData()->hasUrls()) {
  98         event->acceptProposedAction();
  99     }
 100 }
 101
 102 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
 103 {
 104     QTreeView::dragLeaveEvent(event);
 105     setDirtyRegion(m_dropRect);
 106 }
 107
 108 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 109 {
 110     QTreeView::dragMoveEvent(event);
 111
 112     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 113     const QModelIndex index = indexAt(event->pos());
 114     setDirtyRegion(m_dropRect);
 115     m_dropRect = visualRect(index);
 116     setDirtyRegion(m_dropRect);
 117
 118     if (event->mimeData()->hasUrls()) {
 119         // accept url drops, independently from the destination item
 120         event->acceptProposedAction();
 121     }
 122 }
 123
 124 void SidebarTreeView::dropEvent(QDropEvent* event)
 125 {
 126     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 127     if (urls.isEmpty()) {
 128         QTreeView::dropEvent(event);
 129     } else {
 130         event->acceptProposedAction();
 131         const QModelIndex index = indexAt(event->pos());
 132         if (index.isValid()) {
 133             emit urlsDropped(urls, index);
 134         }
 135     }
 136 }
 137
 138 #include "sidebartreeview.moc"