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/*
* Copyright (c) 2010 Kevin Smith
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Roster/QtTreeWidget.h"
#include <boost/smart_ptr/make_shared.hpp>
#include "Swiften/Base/Platform.h"
#include "Swift/Controllers/Roster/ContactRosterItem.h"
#include "Swift/Controllers/Roster/GroupRosterItem.h"
#include "Swift/Controllers/UIEvents/UIEventStream.h"
#include "Swift/Controllers/UIEvents/RequestChatUIEvent.h"
#include "QtSwiftUtil.h"
namespace Swift {
QtTreeWidget::QtTreeWidget(UIEventStream* eventStream, QWidget* parent) : QTreeView(parent) {
eventStream_ = eventStream;
model_ = new RosterModel(this);
setModel(model_);
delegate_ = new RosterDelegate(this);
setItemDelegate(delegate_);
setHeaderHidden(true);
#ifdef SWIFT_PLATFORM_MACOSX
setAlternatingRowColors(true);
#endif
setVerticalScrollMode(QAbstractItemView::ScrollPerPixel);
expandAll();
setAnimated(true);
setIndentation(0);
setRootIsDecorated(true);
connect(this, SIGNAL(activated(const QModelIndex&)), this, SLOT(handleItemActivated(const QModelIndex&)));
connect(model_, SIGNAL(itemExpanded(const QModelIndex&, bool)), this, SLOT(handleModelItemExpanded(const QModelIndex&, bool)));
connect(this, SIGNAL(expanded(const QModelIndex&)), this, SLOT(handleExpanded(const QModelIndex&)));
connect(this, SIGNAL(collapsed(const QModelIndex&)), this, SLOT(handleCollapsed(const QModelIndex&)));
connect(this, SIGNAL(clicked(const QModelIndex&)), this, SLOT(handleClicked(const QModelIndex&)));
}
QtTreeWidget::~QtTreeWidget() {
delete model_;
delete delegate_;
}
void QtTreeWidget::setRosterModel(Roster* roster) {
roster_ = roster;
model_->setRoster(roster);
expandAll();
}
QtTreeWidgetItem* QtTreeWidget::getRoot() {
return treeRoot_;
}
void QtTreeWidget::handleClicked(const QModelIndex& index) {
GroupRosterItem* item = dynamic_cast<GroupRosterItem*>(static_cast<RosterItem*>(index.internalPointer()));
if (item) {
setExpanded(index, !isExpanded(index));
}
currentChanged(index, QModelIndex());
}
QModelIndexList QtTreeWidget::getSelectedIndexes() const {
// Not using selectedIndexes(), because this seems to cause a crash in Qt (4.7.0) in the
// QModelIndexList destructor.
// This is a workaround posted in http://www.qtcentre.org/threads/16933 (although this case
// was resolved by linking against the debug libs, ours isn't, and we're not alone)
QItemSelection ranges = selectionModel()->selection();
QModelIndexList selectedIndexList;
for (int i = 0; i < ranges.count(); ++i) {
QModelIndex parent = ranges.at(i).parent();
int right = ranges.at(i).model()->columnCount(parent) - 1;
if (ranges.at(i).left() == 0 && ranges.at(i).right() == right) {
for (int r = ranges.at(i).top(); r <= ranges.at(i).bottom(); ++r) {
selectedIndexList.append(ranges.at(i).model()->index(r, 0, parent));
}
}
}
return selectedIndexList;
}
void QtTreeWidget::currentChanged(const QModelIndex& current, const QModelIndex& previous) {
RosterItem* item = NULL;
QModelIndexList selectedIndexList = getSelectedIndexes();
if (selectedIndexList.empty() || !selectedIndexList[0].isValid()) {
/* I didn't quite understand why using current didn't seem to work here.*/
}
else if (current.isValid()) {
item = static_cast<RosterItem*>(current.internalPointer());
item = dynamic_cast<ContactRosterItem*>(item);
}
onSomethingSelectedChanged(item);
QTreeView::currentChanged(current, previous);
}
void QtTreeWidget::handleItemActivated(const QModelIndex& index) {
RosterItem* item = static_cast<RosterItem*>(index.internalPointer());
ContactRosterItem* contact = dynamic_cast<ContactRosterItem*>(item);
if (contact) {
eventStream_->send(boost::shared_ptr<UIEvent>(new RequestChatUIEvent(contact->getJID())));
}
}
void QtTreeWidget::handleExpanded(const QModelIndex& index) {
GroupRosterItem* item = dynamic_cast<GroupRosterItem*>(static_cast<RosterItem*>(index.internalPointer()));
if (item) {
item->setExpanded(true);
}
}
void QtTreeWidget::handleCollapsed(const QModelIndex& index) {
GroupRosterItem* item = dynamic_cast<GroupRosterItem*>(static_cast<RosterItem*>(index.internalPointer()));
if (item) {
item->setExpanded(false);
}
}
void QtTreeWidget::handleModelItemExpanded(const QModelIndex& index, bool shouldExpand) {
if (!index.isValid()) {
return;
}
bool alreadyRight = this->isExpanded(index) == shouldExpand;
if (alreadyRight) {
return;
}
setExpanded(index, shouldExpand);
}
void QtTreeWidget::drawBranches(QPainter*, const QRect&, const QModelIndex&) const {
}
void QtTreeWidget::show() {
QWidget::show();
}
}
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Swift