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