kde/dolphin
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dolphin/src/dolphincolumnwidget.cpp
Peter Penz 3a27f30799 * clear the selection toggle when zooming in or out 
* clear the selection toggle when using the scroll wheel (this is only a temporary workaround until Qt-issue #200665 has been fixed)

BUG: 159737

svn path=/trunk/KDE/kdebase/apps/; revision=797808
2008-04-16 21:08:09 +00:00

473 lines
15 KiB
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/***************************************************************************
* Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at> *
* *
* 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 "dolphincolumnwidget.h"
#include "dolphinmodel.h"
#include "dolphincolumnview.h"
#include "dolphincontroller.h"
#include "dolphindirlister.h"
#include "dolphinsortfilterproxymodel.h"
#include "dolphinsettings.h"
#include "dolphin_columnmodesettings.h"
#include "dolphin_generalsettings.h"
#include "draganddrophelper.h"
#include "selectionmanager.h"
#include "tooltipmanager.h"
#include <kcolorscheme.h>
#include <kdirlister.h>
#include <kfileitem.h>
#include <kio/previewjob.h>
#include <kiconeffect.h>
#include <kjob.h>
#include <kmimetyperesolver.h>
#include <konqmimedata.h>
#include "iconmanager.h"
#include <QApplication>
#include <QClipboard>
#include <QPainter>
#include <QPoint>
DolphinColumnWidget::DolphinColumnWidget(QWidget* parent,
DolphinColumnView* columnView,
const KUrl& url) :
QListView(parent),
m_active(true),
m_view(columnView),
m_selectionManager(0),
m_url(url),
m_childUrl(),
m_font(),
m_decorationSize(),
m_dirLister(0),
m_dolphinModel(0),
m_proxyModel(0),
m_iconManager(0),
m_dropRect()
{
setMouseTracking(true);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
setSelectionBehavior(SelectItems);
setSelectionMode(QAbstractItemView::ExtendedSelection);
setDragDropMode(QAbstractItemView::DragDrop);
setDropIndicatorShown(false);
setSelectionRectVisible(true);
setEditTriggers(QAbstractItemView::NoEditTriggers);
setVerticalScrollMode(QListView::ScrollPerPixel);
setHorizontalScrollMode(QListView::ScrollPerPixel);
// apply the column mode settings to the widget
const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
Q_ASSERT(settings != 0);
if (settings->useSystemFont()) {
m_font = KGlobalSettings::generalFont();
} else {
m_font = QFont(settings->fontFamily(),
settings->fontSize(),
settings->fontWeight(),
settings->italicFont());
}
const int iconSize = settings->iconSize();
setDecorationSize(QSize(iconSize, iconSize));
KFileItemDelegate* delegate = new KFileItemDelegate(this);
setItemDelegate(delegate);
activate();
connect(this, SIGNAL(viewportEntered()),
m_view->m_controller, SLOT(emitViewportEntered()));
connect(this, SIGNAL(entered(const QModelIndex&)),
this, SLOT(slotEntered(const QModelIndex&)));
//m_dirLister = new DolphinDirLister(); TODO
m_dirLister = new KDirLister();
m_dirLister->setAutoUpdate(true);
m_dirLister->setMainWindow(window());
m_dirLister->setDelayedMimeTypes(true);
const bool showHiddenFiles = m_view->m_controller->dolphinView()->showHiddenFiles();
m_dirLister->setShowingDotFiles(showHiddenFiles);
m_dolphinModel = new DolphinModel(this);
m_dolphinModel->setDirLister(m_dirLister);
m_dolphinModel->setDropsAllowed(DolphinModel::DropOnDirectory);
m_proxyModel = new DolphinSortFilterProxyModel(this);
m_proxyModel->setSourceModel(m_dolphinModel);
m_proxyModel->setFilterCaseSensitivity(Qt::CaseInsensitive);
const DolphinView* dolphinView = m_view->m_controller->dolphinView();
m_proxyModel->setSorting(dolphinView->sorting());
m_proxyModel->setSortOrder(dolphinView->sortOrder());
setModel(m_proxyModel);
const bool useSelManager = KGlobalSettings::singleClick() &&
DolphinSettings::instance().generalSettings()->showSelectionToggle();
if (useSelManager) {
m_selectionManager = new SelectionManager(this);
connect(m_selectionManager, SIGNAL(selectionChanged()),
this, SLOT(requestActivation()));
connect(m_view->m_controller, SIGNAL(urlChanged(const KUrl&)),
m_selectionManager, SLOT(reset()));
}
new KMimeTypeResolver(this, m_dolphinModel);
m_iconManager = new IconManager(this, m_proxyModel);
m_iconManager->setShowPreview(m_view->m_controller->dolphinView()->showPreview());
if (DolphinSettings::instance().generalSettings()->showToolTips()) {
new ToolTipManager(this, m_proxyModel);
}
m_dirLister->openUrl(url, KDirLister::NoFlags);
connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
this, SLOT(updateFont()));
}
DolphinColumnWidget::~DolphinColumnWidget()
{
delete m_proxyModel;
m_proxyModel = 0;
delete m_dolphinModel;
m_dolphinModel = 0;
m_dirLister = 0; // deleted by m_dolphinModel
}
void DolphinColumnWidget::setDecorationSize(const QSize& size)
{
setIconSize(size);
m_decorationSize = size;
doItemsLayout();
if (m_iconManager != 0) {
m_iconManager->updatePreviews();
}
if (m_selectionManager != 0) {
m_selectionManager->reset();
}
}
void DolphinColumnWidget::setActive(bool active)
{
if (m_active == active) {
return;
}
m_active = active;
if (active) {
activate();
} else {
deactivate();
}
}
void DolphinColumnWidget::reload()
{
m_dirLister->stop();
m_dirLister->openUrl(m_url, KDirLister::Reload);
}
void DolphinColumnWidget::setSorting(DolphinView::Sorting sorting)
{
m_proxyModel->setSorting(sorting);
}
void DolphinColumnWidget::setSortOrder(Qt::SortOrder order)
{
m_proxyModel->setSortOrder(order);
}
void DolphinColumnWidget::setShowHiddenFiles(bool show)
{
if (show != m_dirLister->showingDotFiles()) {
m_dirLister->setShowingDotFiles(show);
m_dirLister->stop();
m_dirLister->openUrl(m_url, KDirLister::Reload);
}
}
void DolphinColumnWidget::setShowPreview(bool show)
{
m_iconManager->setShowPreview(show);
m_dirLister->stop();
m_dirLister->openUrl(m_url, KDirLister::Reload);
}
void DolphinColumnWidget::updateBackground()
{
// TODO: The alpha-value 150 is copied from DolphinView::setActive(). When
// cleaning up the cut-indication of DolphinColumnWidget with the code from
// DolphinView a common helper-class should be available which can be shared
// by all view implementations -> no hardcoded value anymore
const QPalette::ColorRole role = viewport()->backgroundRole();
QColor color = viewport()->palette().color(role);
color.setAlpha((m_active && m_view->m_active) ? 255 : 150);
QPalette palette = viewport()->palette();
palette.setColor(role, color);
viewport()->setPalette(palette);
update();
}
void DolphinColumnWidget::setNameFilter(const QString& nameFilter)
{
m_proxyModel->setFilterRegExp(nameFilter);
}
void DolphinColumnWidget::editItem(const KFileItem& item)
{
const QModelIndex dirIndex = m_dolphinModel->indexForItem(item);
const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
if (proxyIndex.isValid()) {
edit(proxyIndex);
}
}
QStyleOptionViewItem DolphinColumnWidget::viewOptions() const
{
QStyleOptionViewItem viewOptions = QListView::viewOptions();
viewOptions.font = m_font;
viewOptions.decorationSize = m_decorationSize;
viewOptions.showDecorationSelected = true;
return viewOptions;
}
void DolphinColumnWidget::startDrag(Qt::DropActions supportedActions)
{
DragAndDropHelper::startDrag(this, supportedActions);
}
void DolphinColumnWidget::dragEnterEvent(QDragEnterEvent* event)
{
if (event->mimeData()->hasUrls()) {
event->acceptProposedAction();
}
}
void DolphinColumnWidget::dragLeaveEvent(QDragLeaveEvent* event)
{
QListView::dragLeaveEvent(event);
setDirtyRegion(m_dropRect);
}
void DolphinColumnWidget::dragMoveEvent(QDragMoveEvent* event)
{
QListView::dragMoveEvent(event);
// TODO: remove this code when the issue #160611 is solved in Qt 4.4
const QModelIndex index = indexAt(event->pos());
setDirtyRegion(m_dropRect);
m_dropRect.setSize(QSize()); // set as invalid
if (index.isValid()) {
m_view->m_controller->setItemView(this);
const KFileItem item = m_view->m_controller->itemForIndex(index);
if (!item.isNull() && item.isDir()) {
m_dropRect = visualRect(index);
}
}
setDirtyRegion(m_dropRect);
if (event->mimeData()->hasUrls()) {
// accept url drops, independently from the destination item
event->acceptProposedAction();
}
}
void DolphinColumnWidget::dropEvent(QDropEvent* event)
{
const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
if (!urls.isEmpty()) {
const QModelIndex index = indexAt(event->pos());
m_view->m_controller->setItemView(this);
const KFileItem item = m_view->m_controller->itemForIndex(index);
m_view->m_controller->indicateDroppedUrls(urls,
url(),
item);
event->acceptProposedAction();
}
QListView::dropEvent(event);
}
void DolphinColumnWidget::paintEvent(QPaintEvent* event)
{
if (!m_childUrl.isEmpty()) {
// indicate the shown URL of the next column by highlighting the shown folder item
const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_childUrl);
const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
if (proxyIndex.isValid() && !selectionModel()->isSelected(proxyIndex)) {
const QRect itemRect = visualRect(proxyIndex);
QPainter painter(viewport());
QColor color = KColorScheme(QPalette::Active, KColorScheme::View).foreground().color();
color.setAlpha(32);
painter.setPen(Qt::NoPen);
painter.setBrush(color);
painter.drawRect(itemRect);
}
}
QListView::paintEvent(event);
}
void DolphinColumnWidget::mousePressEvent(QMouseEvent* event)
{
requestActivation();
QListView::mousePressEvent(event);
}
void DolphinColumnWidget::keyPressEvent(QKeyEvent* event)
{
QListView::keyPressEvent(event);
requestActivation();
m_view->m_controller->handleKeyPressEvent(event);
}
void DolphinColumnWidget::contextMenuEvent(QContextMenuEvent* event)
{
if (!m_active) {
m_view->requestActivation(this);
Q_ASSERT(m_view->m_controller->itemView() == this);
m_view->m_controller->triggerUrlChangeRequest(m_url);
}
QListView::contextMenuEvent(event);
const QModelIndex index = indexAt(event->pos());
if (index.isValid() || m_active) {
// Only open a context menu above an item or if the mouse is above
// the active column.
const QPoint pos = m_view->viewport()->mapFromGlobal(event->globalPos());
Q_ASSERT(m_view->m_controller->itemView() == this);
m_view->m_controller->triggerContextMenuRequest(pos);
}
}
void DolphinColumnWidget::wheelEvent(QWheelEvent* event)
{
if (m_selectionManager != 0) {
m_selectionManager->reset();
}
// let Ctrl+wheel events propagate to the DolphinView for icon zooming
if (event->modifiers() & Qt::ControlModifier) {
event->ignore();
return;
}
QListView::wheelEvent(event);
}
void DolphinColumnWidget::leaveEvent(QEvent* event)
{
QListView::leaveEvent(event);
// if the mouse is above an item and moved very fast outside the widget,
// no viewportEntered() signal might be emitted although the mouse has been moved
// above the viewport
m_view->m_controller->emitViewportEntered();
}
void DolphinColumnWidget::selectionChanged(const QItemSelection& selected, const QItemSelection& deselected)
{
QListView::selectionChanged(selected, deselected);
QItemSelectionModel* selModel = m_view->selectionModel();
selModel->select(selected, QItemSelectionModel::Select);
selModel->select(deselected, QItemSelectionModel::Deselect);
}
void DolphinColumnWidget::slotEntered(const QModelIndex& index)
{
m_view->m_controller->setItemView(this);
m_view->m_controller->emitItemEntered(index);
}
void DolphinColumnWidget::requestActivation()
{
m_view->m_controller->setItemView(this);
m_view->m_controller->requestActivation();
if (!m_active) {
m_view->requestActivation(this);
m_view->m_controller->triggerUrlChangeRequest(m_url);
selectionModel()->clear();
}
}
void DolphinColumnWidget::updateFont()
{
const ColumnModeSettings* settings = DolphinSettings::instance().columnModeSettings();
Q_ASSERT(settings != 0);
if (settings->useSystemFont()) {
m_font = KGlobalSettings::generalFont();
}
}
void DolphinColumnWidget::activate()
{
setFocus(Qt::OtherFocusReason);
// TODO: Connecting to the signal 'activated()' is not possible, as kstyle
// does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is
// necessary connecting the signal 'singleClick()' or 'doubleClick'.
if (KGlobalSettings::singleClick()) {
connect(this, SIGNAL(clicked(const QModelIndex&)),
m_view->m_controller, SLOT(triggerItem(const QModelIndex&)));
} else {
connect(this, SIGNAL(doubleClicked(const QModelIndex&)),
m_view->m_controller, SLOT(triggerItem(const QModelIndex&)));
}
if (selectionModel() && selectionModel()->currentIndex().isValid())
selectionModel()->setCurrentIndex(selectionModel()->currentIndex(), QItemSelectionModel::SelectCurrent);
updateBackground();
}
void DolphinColumnWidget::deactivate()
{
clearFocus();
// TODO: Connecting to the signal 'activated()' is not possible, as kstyle
// does not forward the single vs. doubleclick to it yet (KDE 4.1?). Hence it is
// necessary connecting the signal 'singleClick()' or 'doubleClick'.
if (KGlobalSettings::singleClick()) {
disconnect(this, SIGNAL(clicked(const QModelIndex&)),
m_view->m_controller, SLOT(triggerItem(const QModelIndex&)));
} else {
disconnect(this, SIGNAL(doubleClicked(const QModelIndex&)),
m_view->m_controller, SLOT(triggerItem(const QModelIndex&)));
}
const QModelIndex current = selectionModel()->currentIndex();
selectionModel()->clear();
selectionModel()->setCurrentIndex(current, QItemSelectionModel::NoUpdate);
updateBackground();
}
#include "dolphincolumnwidget.moc"
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