Merged very early alpha-version of Dolphin 2.0

Dolphin 2.0 will get a new view-engine with the
following improvements:
- Better performance
- Animated transitions
- No clipped filenames due to dynamic item-sizes
- Grouping support for all view-modes
- Non-rectangular selection areas
- Simplified code for better maintenance

More details will be provided in a blog-entry during
the next days.

Please note that the code is in a very
early alpha-stage and although the most tricky parts
have been implemented already very basic things like
drag and drop or selections have not been pushed yet.
Those things are rather trivial to implement but this
still will take some time.

1 files changed, 0 insertions, 278 deletions

diff --git a/src/views/selectionmanager.cpp b/src/views/selectionmanager.cpp
deleted file mode 100644
index 7a9e81412..000000000
--- a/src/views/selectionmanager.cpp
+++ /dev/null
@@ -1,278 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2008 by Peter Penz <[email protected]>             *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
-
-#include "selectionmanager.h"
-
-#include "dolphinmodel.h"
-#include "dolphin_generalsettings.h"
-#include "selectiontoggle.h"
-#include "settings/dolphinsettings.h"
-#include <KDirModel>
-#include <KGlobalSettings>
-#include <KIconEffect>
-
-#include <QAbstractButton>
-#include <QAbstractItemView>
-#include <QAbstractProxyModel>
-#include <QApplication>
-#include <QModelIndex>
-#include <QPainter>
-#include <QPaintEvent>
-#include <QRect>
-#include <QTimeLine>
-
-SelectionManager::SelectionManager(QAbstractItemView* parent) :
-    QObject(parent),
-    m_view(parent),
-    m_toggle(0),
-    m_connected(false),
-    m_appliedPointingHandCursor(false)
-{
-    connect(parent, SIGNAL(entered(const QModelIndex&)),
-            this, SLOT(slotEntered(const QModelIndex&)));
-    connect(parent, SIGNAL(viewportEntered()),
-            this, SLOT(slotViewportEntered()));
-
-    const GeneralSettings* settings = DolphinSettings::instance().generalSettings();
-    if (settings->showSelectionToggle()) {
-        m_toggle = new SelectionToggle(m_view->viewport());
-        m_toggle->setCheckable(true);
-        m_toggle->hide();
-        connect(m_toggle, SIGNAL(clicked(bool)),
-                this, SLOT(setItemSelected(bool)));
-        m_toggle->installEventFilter(this);
-    }
-
-    m_view->viewport()->installEventFilter(this);
-}
-
-SelectionManager::~SelectionManager()
-{
-}
-
-bool SelectionManager::eventFilter(QObject* watched, QEvent* event)
-{
-    if (watched == m_view->viewport()) {
-        switch (event->type()) {
-        case QEvent::Leave:
-            if (m_toggle) {
-                m_toggle->hide();
-            }
-            restoreCursor();
-            break;
-
-        case QEvent::MouseButtonPress: {
-            // Set the toggle invisible, if a mouse button has been pressed
-            // outside the toggle boundaries. This e.g. assures, that the toggle
-            // gets invisible during dragging items.
-            if (m_toggle) {
-                const QRect toggleBounds(m_toggle->mapToGlobal(QPoint(0, 0)), m_toggle->size());
-                m_toggle->setVisible(toggleBounds.contains(QCursor::pos()));
-            }
-            break;
-        }
-
-        default:
-            break;
-        }
-    } else if (watched == m_toggle) {
-        switch (event->type()) {
-        case QEvent::Enter:
-            QApplication::changeOverrideCursor(Qt::ArrowCursor);
-            break;
-
-        case QEvent::Leave:
-            QApplication::changeOverrideCursor(Qt::PointingHandCursor);
-            break;
-
-        default:
-            break;
-        }
-    }
-
-    return QObject::eventFilter(watched, event);
-}
-
-void SelectionManager::reset()
-{
-    if (m_toggle) {
-        m_toggle->reset();
-    }
-}
-
-void SelectionManager::slotEntered(const QModelIndex& index)
-{
-    const bool isSelectionCandidate = index.isValid() &&
-                                      (index.column() == DolphinModel::Name) &&
-                                      (QApplication::mouseButtons() == Qt::NoButton);
-
-    restoreCursor();
-    if (isSelectionCandidate && KGlobalSettings::singleClick()) {
-        applyPointingHandCursor();
-    }
-
-    if (isSelectionCandidate) {
-        if (!m_connected) {
-            connect(m_view->model(), SIGNAL(rowsRemoved(const QModelIndex&, int, int)),
-                    this, SLOT(slotRowsRemoved(const QModelIndex&, int, int)));
-            connect(m_view->selectionModel(),
-                    SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
-                    this,
-                    SLOT(slotSelectionChanged(const QItemSelection&, const QItemSelection&)));
-            m_connected = true;
-        }
-    } else {
-        disconnect(m_view->model(), SIGNAL(rowsRemoved(const QModelIndex&, int, int)),
-                   this, SLOT(slotRowsRemoved(const QModelIndex&, int, int)));
-        disconnect(m_view->selectionModel(),
-                   SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
-                   this,
-                   SLOT(slotSelectionChanged(const QItemSelection&, const QItemSelection&)));
-        m_connected = false;
-    }
-
-    if (!m_toggle) {
-        return;
-    }
-
-    m_toggle->hide();
-    if (isSelectionCandidate) {
-        m_toggle->setUrl(urlForIndex(index));
-
-        // Increase the size of the toggle for large items
-        const int iconHeight = m_view->iconSize().height();
-
-        int toggleSize = KIconLoader::SizeSmall;
-        if (iconHeight >= KIconLoader::SizeEnormous) {
-            toggleSize = KIconLoader::SizeMedium;
-        } else if (iconHeight >= KIconLoader::SizeLarge) {
-            toggleSize = KIconLoader::SizeSmallMedium;
-        }
-
-        // Add a small invisible margin, if the item-height is nearly
-        // equal to the toggleSize (#169494).
-        const QRect rect = m_view->visualRect(index);
-        int margin = (rect.height() - toggleSize) / 2;
-        if (margin > 4) {
-            margin = 0;
-        }
-        toggleSize += 2 * margin;
-        m_toggle->setMargin(margin);
-        m_toggle->resize(toggleSize, toggleSize);
-        m_toggle->move(rect.topLeft());
-
-        QItemSelectionModel* selModel = m_view->selectionModel();
-        m_toggle->setChecked(selModel->isSelected(index));
-        m_toggle->show();
-    } else {
-        m_toggle->setUrl(KUrl());
-    }
-}
-
-void SelectionManager::slotViewportEntered()
-{
-    if (m_toggle) {
-        m_toggle->hide();
-    }
-    restoreCursor();
-}
-
-void SelectionManager::setItemSelected(bool selected)
-{
-    emit selectionChanged();
-
-    if (m_toggle && !m_toggle->url().isEmpty()) {
-        const QModelIndex index = indexForUrl(m_toggle->url());
-        if (index.isValid()) {
-            QItemSelectionModel* selModel = m_view->selectionModel();
-            if (selected) {
-                selModel->select(index, QItemSelectionModel::Select);
-            } else {
-                selModel->select(index, QItemSelectionModel::Deselect);
-            }
-            selModel->setCurrentIndex(index, QItemSelectionModel::Current);
-        }
-    }
-}
-
-void SelectionManager::slotRowsRemoved(const QModelIndex& parent, int start, int end)
-{
-    Q_UNUSED(parent);
-    Q_UNUSED(start);
-    Q_UNUSED(end);
-    if (m_toggle) {
-        m_toggle->hide();
-    }
-    restoreCursor();
-}
-
-void SelectionManager::slotSelectionChanged(const QItemSelection& selected,
-                                            const QItemSelection& deselected)
-{
-    // The selection has been changed outside the scope of the selection manager
-    // (e. g. by the rubberband or the "Select All" action). Take care updating
-    // the state of the toggle button.
-    if (m_toggle && !m_toggle->url().isEmpty()) {
-        const QModelIndex index = indexForUrl(m_toggle->url());
-        if (index.isValid()) {
-            if (selected.contains(index)) {
-                m_toggle->setChecked(true);
-            }
-
-            if (deselected.contains(index)) {
-                m_toggle->setChecked(false);
-            }
-        }
-    }
-}
-
-KUrl SelectionManager::urlForIndex(const QModelIndex& index) const
-{
-    QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(m_view->model());
-    KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
-    const QModelIndex dirIndex = proxyModel->mapToSource(index);
-    return dirModel->itemForIndex(dirIndex).url();
-}
-
-const QModelIndex SelectionManager::indexForUrl(const KUrl& url) const
-{
-    QAbstractProxyModel* proxyModel = static_cast<QAbstractProxyModel*>(m_view->model());
-    KDirModel* dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
-    const QModelIndex dirIndex = dirModel->indexForUrl(url);
-    return proxyModel->mapFromSource(dirIndex);
-}
-
-
-void SelectionManager::applyPointingHandCursor()
-{
-    if (!m_appliedPointingHandCursor) {
-        QApplication::setOverrideCursor(QCursor(Qt::PointingHandCursor));
-        m_appliedPointingHandCursor = true;
-    }
-}
-
-void SelectionManager::restoreCursor()
-{
-    if (m_appliedPointingHandCursor) {
-        QApplication::restoreOverrideCursor();
-        m_appliedPointingHandCursor = false;
-    }
-}
-
-#include "selectionmanager.moc"