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