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 // TODO: Remove this check when 4.3.2 is released and KDE requires it... this
  47 //       check avoids a division by zero happening on versions before 4.3.1.
  48 //       Right now KDE in theory can be shipped with Qt 4.3.0 and above.
  49 //       ereslibre
  50 #if (QT_VERSION >= QT_VERSION_CHECK(4, 3, 2) || defined(QT_KDE_QT_COPY))
  51     setVerticalScrollMode(QListView::ScrollPerPixel);
  52     setHorizontalScrollMode(QListView::ScrollPerPixel);
  53 #endif
  54
  55     viewport()->setAttribute(Qt::WA_Hover);
  56
  57     QPalette palette = viewport()->palette();
  58     palette.setColor(viewport()->backgroundRole(), Qt::transparent);
  59     viewport()->setPalette(palette);
  60
  61     KFileItemDelegate* delegate = new KFileItemDelegate(this);
  62     setItemDelegate(delegate);
  63 }
  64
  65 SidebarTreeView::~SidebarTreeView()
  66 {
  67 }
  68
  69 bool SidebarTreeView::event(QEvent* event)
  70 {
  71     if (event->type() == QEvent::Polish) {
  72         // hide all columns except of the 'Name' column
  73         hideColumn(DolphinModel::Size);
  74         hideColumn(DolphinModel::ModifiedTime);
  75         hideColumn(DolphinModel::Permissions);
  76         hideColumn(DolphinModel::Owner);
  77         hideColumn(DolphinModel::Group);
  78         hideColumn(DolphinModel::Type);
  79         hideColumn(DolphinModel::Rating);
  80         hideColumn(DolphinModel::Tags);
  81         header()->hide();
  82     }
  83     else if (event->type() == QEvent::UpdateRequest) {
  84         // TODO: Remove this check when 4.3.2 is released and KDE requires it... this
  85         //       check avoids a division by zero happening on versions before 4.3.1.
  86         //       Right now KDE in theory can be shipped with Qt 4.3.0 and above.
  87         //       ereslibre
  88 #if (QT_VERSION >= QT_VERSION_CHECK(4, 3, 2) || defined(QT_KDE_QT_COPY))
  89         // a wheel movement will scroll 1 item
  90         if (model()->rowCount() > 0) {
  91             verticalScrollBar()->setSingleStep(sizeHintForRow(0) / 3);
  92         }
  93 #endif
  94     }
  95     else if (event->type() == QEvent::MetaCall) {
  96         resizeColumnToContents(DolphinModel::Name);
  97     }
  98
  99     return QTreeView::event(event);
 100 }
 101
 102 void SidebarTreeView::startDrag(Qt::DropActions supportedActions)
 103 {
 104     DragAndDropHelper::startDrag(this, supportedActions);
 105 }
 106
 107 void SidebarTreeView::dragEnterEvent(QDragEnterEvent* event)
 108 {
 109     QTreeView::dragEnterEvent(event);
 110
 111     if (event->mimeData()->hasUrls()) {
 112         event->acceptProposedAction();
 113     }
 114
 115     m_dragging = true;
 116 }
 117
 118 void SidebarTreeView::dragLeaveEvent(QDragLeaveEvent* event)
 119 {
 120     QTreeView::dragLeaveEvent(event);
 121
 122     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 123     m_dragging = false;
 124     setDirtyRegion(m_dropRect);
 125 }
 126
 127 void SidebarTreeView::dragMoveEvent(QDragMoveEvent* event)
 128 {
 129     QTreeView::dragMoveEvent(event);
 130
 131     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 132     const QModelIndex index = indexAt(event->pos());
 133     setDirtyRegion(m_dropRect);
 134     m_dropRect = visualRect(index);
 135     setDirtyRegion(m_dropRect);
 136
 137     if (event->mimeData()->hasUrls()) {
 138         // accept url drops, independently from the destination item
 139         event->acceptProposedAction();
 140     }
 141 }
 142
 143 void SidebarTreeView::dropEvent(QDropEvent* event)
 144 {
 145     const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
 146     if (urls.isEmpty()) {
 147         QTreeView::dropEvent(event);
 148     } else {
 149         event->acceptProposedAction();
 150         const QModelIndex index = indexAt(event->pos());
 151         if (index.isValid()) {
 152             emit urlsDropped(urls, index);
 153         }
 154     }
 155     m_dragging = false;
 156 }
 157
 158 void SidebarTreeView::paintEvent(QPaintEvent* event)
 159 {
 160     QTreeView::paintEvent(event);
 161
 162     // TODO: remove this code when the issue #160611 is solved in Qt 4.4
 163     if (m_dragging) {
 164         const QBrush& brush = palette().brush(QPalette::Normal, QPalette::Highlight);
 165         DragAndDropHelper::drawHoverIndication(this, m_dropRect, brush);
 166     }
 167 }
 168
 169 #include "sidebartreeview.moc"