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
  44     setVerticalScrollMode(QListView::ScrollPerPixel);
  45     setHorizontalScrollMode(QListView::ScrollPerPixel);
  46
  47     viewport()->setAttribute(Qt::WA_Hover);
  48
  49     QPalette palette = viewport()->palette();
  50     palette.setColor(viewport()->backgroundRole(), Qt::transparent);
  51     viewport()->setPalette(palette);
  52
  53     KFileItemDelegate* delegate = new KFileItemDelegate(this);
  54     setItemDelegate(delegate);
  55 }
  56
  57 SidebarTreeView::~SidebarTreeView()
  58 {
  59 }
  60
  61 bool SidebarTreeView::event(QEvent* event)
  62 {
  63     if (event->type() == QEvent::Polish) {
  64         // hide all columns except of the 'Name' column
  65         hideColumn(DolphinModel::Size);
  66         hideColumn(DolphinModel::ModifiedTime);
  67         hideColumn(DolphinModel::Permissions);
  68         hideColumn(DolphinModel::Owner);
  69         hideColumn(DolphinModel::Group);
  70         hideColumn(DolphinModel::Type);
  71         hideColumn(DolphinModel::Rating);
  72         hideColumn(DolphinModel::Tags);
  73         header()->hide();
  74     }
  75     else if (event->type() == QEvent::UpdateRequest) {
  76         // a wheel movement will scroll 1 item
  77         if (model()->rowCount() > 0) {
  78             verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
  79         }
  80     }
  81
  82     return KTreeView::event(event);
  83 }
  84
  85 void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
  86 {
  87     DragAndDropHelper::startDrag(this, supportedActions);
  88 }
  89
  90 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
  91 {
  92     KTreeView::dragEnterEvent(event);
  93     if (event->mimeData()->hasUrls()) {
  94         event->acceptProposedAction();
  95     }
  96 }
  97
  98 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
  99 {
 100     KTreeView::dragLeaveEvent(event);
 101     setDirtyRegion(m_dropRect);
 102 }
 103
 104 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 105 {
 106     KTreeView::dragMoveEvent(event);
 107
 108     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 109     const QModelIndex index = indexAt(event->pos());
 110     setDirtyRegion(m_dropRect);
 111     m_dropRect = visualRect(index);
 112     setDirtyRegion(m_dropRect);
 113
 114     if (event->mimeData()->hasUrls()) {
 115         // accept url drops, independently from the destination item
 116         event->acceptProposedAction();
 117     }
 118 }
 119
 120 void SidebarTreeView::dropEvent(QDropEvent* event)
 121 {
 122     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 123     if (urls.isEmpty()) {
 124         KTreeView::dropEvent(event);
 125     } else {
 126         event->acceptProposedAction();
 127         const QModelIndex index = indexAt(event->pos());
 128         if (index.isValid()) {
 129             emit urlsDropped(urls, index);
 130         }
 131     }
 132 }
 133
 134 #include "sidebartreeview.moc"