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     QTreeView(parent),
  34     m_dragging(false)
  35 {
  36     setAcceptDrops(true);
  37     setUniformRowHeights(true);
  38     setSelectionMode(QAbstractItemView::SingleSelection);
  39     setEditTriggers(QAbstractItemView::NoEditTriggers);
  40     setSortingEnabled(true);
  41     setFrameStyle(QFrame::NoFrame);
  42     setDragDropMode(QAbstractItemView::DragDrop);
  43     setDropIndicatorShown(false);
  44     setAutoExpandDelay(300);
  45
  46     setVerticalScrollMode(QListView::ScrollPerPixel);
  47     setHorizontalScrollMode(QListView::ScrollPerPixel);
  48
  49     viewport()->setAttribute(Qt::WA_Hover);
  50
  51     QPalette palette = viewport()->palette();
  52     palette.setColor(viewport()->backgroundRole(), Qt::transparent);
  53     viewport()->setPalette(palette);
  54
  55     KFileItemDelegate* delegate = new KFileItemDelegate(this);
  56     setItemDelegate(delegate);
  57 }
  58
  59 SidebarTreeView::~SidebarTreeView()
  60 {
  61 }
  62
  63 bool SidebarTreeView::event(QEvent* event)
  64 {
  65     if (event->type() == QEvent::Polish) {
  66         // hide all columns except of the 'Name' column
  67         hideColumn(DolphinModel::Size);
  68         hideColumn(DolphinModel::ModifiedTime);
  69         hideColumn(DolphinModel::Permissions);
  70         hideColumn(DolphinModel::Owner);
  71         hideColumn(DolphinModel::Group);
  72         hideColumn(DolphinModel::Type);
  73         hideColumn(DolphinModel::Rating);
  74         hideColumn(DolphinModel::Tags);
  75         header()->hide();
  76     }
  77     else if (event->type() == QEvent::UpdateRequest) {
  78         // a wheel movement will scroll 1 item
  79         if (model()->rowCount() > 0) {
  80             verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
  81         }
  82     }
  83     else if (event->type() == QEvent::MetaCall) {
  84         resizeColumnToContents(DolphinModel::Name);
  85     }
  86
  87     return QTreeView::event(event);
  88 }
  89
  90 void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
  91 {
  92     DragAndDropHelper::startDrag(this, supportedActions);
  93 }
  94
  95 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
  96 {
  97     QTreeView::dragEnterEvent(event);
  98
  99     if (event->mimeData()->hasUrls()) {
 100         event->acceptProposedAction();
 101     }
 102
 103     m_dragging = true;
 104 }
 105
 106 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
 107 {
 108     QTreeView::dragLeaveEvent(event);
 109
 110     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 111     m_dragging = false;
 112     setDirtyRegion(m_dropRect);
 113 }
 114
 115 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 116 {
 117     QTreeView::dragMoveEvent(event);
 118
 119     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 120     const QModelIndex index = indexAt(event->pos());
 121     setDirtyRegion(m_dropRect);
 122     m_dropRect = visualRect(index);
 123     setDirtyRegion(m_dropRect);
 124
 125     if (event->mimeData()->hasUrls()) {
 126         // accept url drops, independently from the destination item
 127         event->acceptProposedAction();
 128     }
 129 }
 130
 131 void SidebarTreeView::dropEvent(QDropEvent* event)
 132 {
 133     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 134     if (urls.isEmpty()) {
 135         QTreeView::dropEvent(event);
 136     } else {
 137         event->acceptProposedAction();
 138         const QModelIndex index = indexAt(event->pos());
 139         if (index.isValid()) {
 140             emit urlsDropped(urls, index);
 141         }
 142     }
 143     m_dragging = false;
 144 }
 145
 146 void SidebarTreeView::paintEvent(QPaintEvent* event)
 147 {
 148     QTreeView::paintEvent(event);
 149
 150     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 151     if (m_dragging) {
 152         const QBrush& brush = palette().brush(QPalette::Normal, QPalette::Highlight);
 153         DragAndDropHelper::drawHoverIndication(this, m_dropRect, brush);
 154     }
 155 }
 156
 157 #include "sidebartreeview.moc"