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/*****************************************************************************
* Copyright (C) 2007 by Peter Penz <peter.penz@gmx.at> *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
* This library 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 *
* Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public License *
* along with this library; see the file COPYING.LIB. If not, write to *
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
* Boston, MA 02110-1301, USA. *
*****************************************************************************/
#include "kdiroperatordetailview_p.h"
#include <kdirlister.h>
#include <kdirmodel.h>
#include <kdebug.h>
#include <QtCore/QEvent>
#include <QtCore/QTimer>
#include <QtGui/QAbstractProxyModel>
#include <QtGui/QApplication>
#include <QtGui/QHeaderView>
#include <QtGui/QListView>
#include <QtGui/QResizeEvent>
#include <QtGui/QScrollBar>
KDirOperatorDetailView::KDirOperatorDetailView(QWidget *parent) :
QTreeView(parent),
m_resizeColumns(true), m_hideDetailColumns(false)
{
setRootIsDecorated(false);
setSortingEnabled(true);
setUniformRowHeights(true);
setDragDropMode(QListView::DragOnly);
setSelectionBehavior(QAbstractItemView::SelectRows);
setEditTriggers(QAbstractItemView::NoEditTriggers);
setVerticalScrollMode(QListView::ScrollPerPixel);
setHorizontalScrollMode(QListView::ScrollPerPixel);
}
KDirOperatorDetailView::~KDirOperatorDetailView()
{
}
void KDirOperatorDetailView::setModel(QAbstractItemModel *model)
{
if (model->rowCount() == 0) {
// The model is empty. Assure that the columns get automatically resized
// until the loading has been finished.
QAbstractProxyModel *proxyModel = static_cast<QAbstractProxyModel*>(model);
KDirModel *dirModel = static_cast<KDirModel*>(proxyModel->sourceModel());
connect(dirModel->dirLister(), SIGNAL(completed()),
this, SLOT(resetResizing()));
} else {
resetResizing();
}
connect(model, SIGNAL(layoutChanged()), this, SLOT(slotLayoutChanged()));
QTreeView::setModel(model);
}
bool KDirOperatorDetailView::setViewMode(KFile::FileView viewMode)
{
bool tree = false;
if (KFile::isDetailView(viewMode)) {
m_hideDetailColumns = false;
} else if (KFile::isTreeView(viewMode)) {
m_hideDetailColumns = true;
tree = true;
} else if (KFile::isDetailTreeView(viewMode)) {
m_hideDetailColumns = false;
tree = true;
} else {
return false;
}
setRootIsDecorated(tree);
setItemsExpandable(tree);
// This allows to have a horizontal scrollbar in case this view is used as
// a plain treeview instead of cutting off filenames, especially useful when
// using KDirOperator in horizontally limited parts of an app.
if( tree && m_hideDetailColumns ) {
header()->setResizeMode( QHeaderView::ResizeToContents );
header()->setStretchLastSection( false );
}
return true;
}
bool KDirOperatorDetailView::event(QEvent *event)
{
if (event->type() == QEvent::Polish) {
QHeaderView *headerView = header();
headerView->setResizeMode(QHeaderView::Interactive);
headerView->setStretchLastSection(true);
headerView->setMovable(false);
setColumnHidden(KDirModel::Size, m_hideDetailColumns);
setColumnHidden(KDirModel::ModifiedTime, m_hideDetailColumns);
hideColumn(KDirModel::Type);
hideColumn(KDirModel::Permissions);
hideColumn(KDirModel::Owner);
hideColumn(KDirModel::Group);
}
else if (event->type() == QEvent::UpdateRequest) {
// A wheel movement will scroll 4 items
if (model()->rowCount())
verticalScrollBar()->setSingleStep((sizeHintForRow(0) / 3) * 4);
}
return QTreeView::event(event);
}
void KDirOperatorDetailView::dragEnterEvent(QDragEnterEvent *event)
{
if (event->mimeData()->hasUrls()) {
event->acceptProposedAction();
}
}
void KDirOperatorDetailView::resizeEvent(QResizeEvent *event)
{
QTreeView::resizeEvent(event);
slotLayoutChanged();
}
void KDirOperatorDetailView::mousePressEvent(QMouseEvent *event)
{
QTreeView::mousePressEvent(event);
const QModelIndex index = indexAt(event->pos());
if (!index.isValid() || (index.column() != KDirModel::Name)) {
const Qt::KeyboardModifiers modifiers = QApplication::keyboardModifiers();
if (!(modifiers & Qt::ShiftModifier) && !(modifiers & Qt::ControlModifier)) {
clearSelection();
}
}
}
void KDirOperatorDetailView::currentChanged(const QModelIndex& current, const QModelIndex& previous)
{
QTreeView::currentChanged(current, previous);
}
void KDirOperatorDetailView::resetResizing()
{
QTimer::singleShot(300, this, SLOT(disableColumnResizing()));
}
void KDirOperatorDetailView::disableColumnResizing()
{
m_resizeColumns = false;
}
void KDirOperatorDetailView::slotLayoutChanged()
{
if (m_resizeColumns) {
QHeaderView *headerView = header();
headerView->resizeSections(QHeaderView::ResizeToContents);
// calculate the required width for all columns except the name column
int requiredWidth = 0;
const int count = headerView->count();
for (int i = 1; i < count; ++i) {
requiredWidth += headerView->sectionSize(i);
}
// try to stretch the name column if enough width is available
int oldNameColumnWidth = headerView->sectionSize(KDirModel::Name);
int nameColumnWidth = viewport()->width() - requiredWidth;
if (nameColumnWidth < oldNameColumnWidth) {
nameColumnWidth = oldNameColumnWidth;
}
headerView->resizeSection(KDirModel::Name, nameColumnWidth);
}
}
// kate: space-indent on; indent-width 4; replace-tabs on;
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