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
  25 #include <kfileitemdelegate.h>
  26 #include <QKeyEvent>
  27 #include <QPainter>
  28 #include <QHeaderView>
  29 #include <QScrollBar>
  30
  31 SidebarTreeView::SidebarTreeView(QWidget* parent) :
  32     QTreeView(parent),
  33     m_dragging(false)
  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     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 QTreeView::event(event);
  83 }
  84
  85 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
  86 {
  87     if (event->mimeData()->hasUrls()) {
  88         event->acceptProposedAction();
  89     }
  90     QTreeView::dragEnterEvent(event);
  91     m_dragging = true;
  92 }
  93
  94 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
  95 {
  96     QTreeView::dragLeaveEvent(event);
  97
  98     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
  99     m_dragging = false;
 100     setDirtyRegion(m_dropRect);
 101 }
 102
 103 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 104 {
 105     QTreeView::dragMoveEvent(event);
 106
 107     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 108     const QModelIndex index = indexAt(event->pos());
 109     setDirtyRegion(m_dropRect);
 110     m_dropRect = visualRect(index);
 111     setDirtyRegion(m_dropRect);
 112 }
 113
 114 void SidebarTreeView::dropEvent(QDropEvent* event)
 115 {
 116     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 117     if (urls.isEmpty()) {
 118         QTreeView::dropEvent(event);
 119     } else {
 120         event->acceptProposedAction();
 121         const QModelIndex index = indexAt(event->pos());
 122         if (index.isValid()) {
 123             emit urlsDropped(urls, index);
 124         }
 125     }
 126     m_dragging = false;
 127 }
 128
 129 void SidebarTreeView::paintEvent(QPaintEvent* event)
 130 {
 131     QTreeView::paintEvent(event);
 132
 133     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 134     if (m_dragging) {
 135         const QBrush& brush = palette().brush(QPalette::Normal, QPalette::Highlight);
 136         DolphinController::drawHoverIndication(viewport(), m_dropRect, brush);
 137     }
 138 }
 139
 140 #include "sidebartreeview.moc"