src/viewextensionsfactory.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 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 "viewextensionsfactory.h"
  21
  22 #include "dolphincontroller.h"
  23 #include "dolphinsortfilterproxymodel.h"
  24 #include "dolphinview.h"
  25 #include "dolphinviewautoscroller.h"
  26 #include "selectionmanager.h"
  27 #include "settings/dolphinsettings.h"
  28 #include "tooltips/tooltipmanager.h"
  29
  30 #include "dolphin_generalsettings.h"
  31
  32 #include <kfilepreviewgenerator.h>
  33 #include <QAbstractItemView>
  34
  35 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  36                                              DolphinController* controller) :
  37     QObject(view),
  38     m_controller(controller),
  39     m_toolTipManager(0),
  40     m_previewGenerator(0),
  41     m_selectionManager(0),
  42     m_autoScroller(0)
  43 {
  44     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  45
  46     // initialize tooltips
  47     if (settings->showToolTips()) {
  48         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  49         m_toolTipManager = new ToolTipManager(view, proxyModel);
  50
  51         connect(controller, SIGNAL(hideToolTip()),
  52                 m_toolTipManager, SLOT(hideTip()));
  53     }
  54
  55     // initialize preview generator
  56     m_previewGenerator = new KFilePreviewGenerator(view);
  57     m_previewGenerator->setPreviewShown(controller->dolphinView()->showPreview());
  58     connect(controller, SIGNAL(zoomLevelChanged(int)),
  59             this, SLOT(slotZoomLevelChanged()));
  60     connect(controller, SIGNAL(cancelPreviews()),
  61             this, SLOT(cancelPreviews()));
  62     connect(controller->dolphinView(), SIGNAL(showPreviewChanged()),
  63             this, SLOT(slotShowPreviewChanged()));
  64
  65     // initialize selection manager
  66     if (settings->showSelectionToggle()) {
  67         m_selectionManager = new SelectionManager(view);
  68         connect(m_selectionManager, SIGNAL(selectionChanged()),
  69                 this, SLOT(requestActivation()));
  70         connect(controller, SIGNAL(urlChanged(const KUrl&)),
  71                 m_selectionManager, SLOT(reset()));
  72     }
  73
  74     // initialize auto scroller
  75     m_autoScroller = new DolphinViewAutoScroller(view);
  76     connect(controller, SIGNAL(currentIndexChanged(QModelIndex, QModelIndex)),
  77             m_autoScroller, SLOT(handleCurrentIndexChanged(QModelIndex, QModelIndex)));
  78
  79     view->viewport()->installEventFilter(this);
  80 }
  81
  82 ViewExtensionsFactory::~ViewExtensionsFactory()
  83 {
  84 }
  85
  86 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
  87 {
  88     m_autoScroller->handleCurrentIndexChange(current, previous);
  89 }
  90
  91 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
  92 {
  93     Q_UNUSED(watched);
  94     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
  95         m_selectionManager->reset();
  96     }
  97     return false;
  98 }
  99
 100 void ViewExtensionsFactory::slotZoomLevelChanged()
 101 {
 102     m_previewGenerator->updateIcons();
 103     if (m_selectionManager != 0) {
 104         m_selectionManager->reset();
 105     }
 106 }
 107
 108 void ViewExtensionsFactory::cancelPreviews()
 109 {
 110     m_previewGenerator->cancelPreviews();
 111 }
 112
 113 void ViewExtensionsFactory::slotShowPreviewChanged()
 114 {
 115     const bool show = m_controller->dolphinView()->showPreview();
 116     m_previewGenerator->setPreviewShown(show);
 117 }
 118
 119 void ViewExtensionsFactory::requestActivation()
 120 {
 121     m_controller->requestActivation();
 122 }
 123
 124 #include "viewextensionsfactory.moc"
 125