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 "dolphinfileitemdelegate.h"
  24 #include "dolphinsortfilterproxymodel.h"
  25 #include "dolphinview.h"
  26 #include "dolphinviewautoscroller.h"
  27 #include "selectionmanager.h"
  28 #include "settings/dolphinsettings.h"
  29 #include "tooltips/tooltipmanager.h"
  30
  31 #include "dolphin_generalsettings.h"
  32
  33 #include <kdirlister.h>
  34 #include <kdirmodel.h>
  35 #include <kfilepreviewgenerator.h>
  36 #include <QAbstractItemView>
  37
  38 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  39                                              DolphinController* controller) :
  40     QObject(view),
  41     m_view(view),
  42     m_controller(controller),
  43     m_toolTipManager(0),
  44     m_previewGenerator(0),
  45     m_selectionManager(0),
  46     m_autoScroller(0),
  47     m_fileItemDelegate(0)
  48 {
  49     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  50
  51     // initialize tooltips
  52     if (settings->showToolTips()) {
  53         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  54         m_toolTipManager = new ToolTipManager(view, proxyModel);
  55
  56         connect(controller, SIGNAL(hideToolTip()),
  57                 m_toolTipManager, SLOT(hideTip()));
  58     }
  59
  60     // initialize preview generator
  61     m_previewGenerator = new KFilePreviewGenerator(view);
  62     m_previewGenerator->setPreviewShown(controller->dolphinView()->showPreview());
  63     connect(controller, SIGNAL(zoomLevelChanged(int)),
  64             this, SLOT(slotZoomLevelChanged()));
  65     connect(controller, SIGNAL(cancelPreviews()),
  66             this, SLOT(cancelPreviews()));
  67     connect(controller->dolphinView(), SIGNAL(showPreviewChanged()),
  68             this, SLOT(slotShowPreviewChanged()));
  69
  70     // initialize selection manager
  71     if (settings->showSelectionToggle()) {
  72         m_selectionManager = new SelectionManager(view);
  73         connect(m_selectionManager, SIGNAL(selectionChanged()),
  74                 this, SLOT(requestActivation()));
  75         connect(controller, SIGNAL(urlChanged(const KUrl&)),
  76                 m_selectionManager, SLOT(reset()));
  77     }
  78
  79     // initialize auto scroller
  80     m_autoScroller = new DolphinViewAutoScroller(view);
  81
  82     // initialize file item delegate
  83     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  84     m_fileItemDelegate->setShowToolTipWhenElided(false);
  85     view->setItemDelegate(m_fileItemDelegate);
  86
  87     // react on view property changes
  88     connect(controller->dolphinView(), SIGNAL(showHiddenFilesChanged()),
  89             this, SLOT(slotShowHiddenFilesChanged()));
  90     view->viewport()->installEventFilter(this);
  91 }
  92
  93 ViewExtensionsFactory::~ViewExtensionsFactory()
  94 {
  95 }
  96
  97 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
  98 {
  99     m_autoScroller->handleCurrentIndexChange(current, previous);
 100 }
 101
 102 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
 103 {
 104     return m_fileItemDelegate;
 105 }
 106
 107 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 108 {
 109     Q_UNUSED(watched);
 110     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 111         m_selectionManager->reset();
 112     }
 113     return false;
 114 }
 115
 116 void ViewExtensionsFactory::slotZoomLevelChanged()
 117 {
 118     m_previewGenerator->updateIcons();
 119     if (m_selectionManager != 0) {
 120         m_selectionManager->reset();
 121     }
 122 }
 123
 124 void ViewExtensionsFactory::cancelPreviews()
 125 {
 126     m_previewGenerator->cancelPreviews();
 127 }
 128
 129 void ViewExtensionsFactory::slotShowPreviewChanged()
 130 {
 131     const bool show = m_controller->dolphinView()->showPreview();
 132     m_previewGenerator->setPreviewShown(show);
 133 }
 134
 135 void ViewExtensionsFactory::slotShowHiddenFilesChanged()
 136 {
 137     DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(m_view->model());
 138     KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
 139     KDirLister* dirLister = dirModel->dirLister();
 140
 141     dirLister->stop();
 142
 143     const bool show = m_controller->dolphinView()->showHiddenFiles();
 144     dirLister->setShowingDotFiles(show);
 145
 146     const KUrl url = dirLister->url();
 147     if (url.isValid()) {
 148         dirLister->openUrl(url, KDirLister::NoFlags);
 149     }
 150 }
 151
 152 void ViewExtensionsFactory::requestActivation()
 153 {
 154     m_controller->requestActivation();
 155 }
 156
 157 #include "viewextensionsfactory.moc"
 158