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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "selectionindicator.h"
#include <QPen>
#include <QGraphicsScene>
namespace QmlDesigner {
SelectionIndicator::SelectionIndicator(LayerItem *layerItem)
: m_layerItem(layerItem)
{
}
SelectionIndicator::~SelectionIndicator()
{
clear();
}
void SelectionIndicator::show()
{
foreach (QGraphicsPolygonItem *item, m_indicatorShapeHash)
item->show();
}
void SelectionIndicator::hide()
{
foreach (QGraphicsPolygonItem *item, m_indicatorShapeHash)
item->hide();
}
void SelectionIndicator::clear()
{
if (m_layerItem) {
foreach (QGraphicsItem *item, m_indicatorShapeHash) {
m_layerItem->scene()->removeItem(item);
delete item;
}
}
m_indicatorShapeHash.clear();
}
//static void alignVertices(QPolygonF &polygon, double factor)
//{
// QMutableVectorIterator<QPointF> iterator(polygon);
// while (iterator.hasNext()) {
// QPointF &vertex = iterator.next();
// vertex.setX(std::floor(vertex.x()) + factor);
// vertex.setY(std::floor(vertex.y()) + factor);
// }
//
//}
void SelectionIndicator::setItems(const QList<FormEditorItem*> &itemList)
{
clear();
foreach (FormEditorItem *item, itemList) {
if (!item->qmlItemNode().isValid())
continue;
QGraphicsPolygonItem *newSelectionIndicatorGraphicsItem = new QGraphicsPolygonItem(m_layerItem.data());
m_indicatorShapeHash.insert(item, newSelectionIndicatorGraphicsItem);
QPolygonF boundingRectInSceneSpace(item->mapToScene(item->qmlItemNode().instanceBoundingRect()));
// alignVertices(boundingRectInSceneSpace, 0.5 / item->formEditorView()->widget()->zoomAction()->zoomLevel());
QPolygonF boundingRectInLayerItemSpace = m_layerItem->mapFromScene(boundingRectInSceneSpace);
newSelectionIndicatorGraphicsItem->setPolygon(boundingRectInLayerItemSpace);
newSelectionIndicatorGraphicsItem->setFlag(QGraphicsItem::ItemIsSelectable, false);
QPen pen;
pen.setColor(QColor(108, 141, 221));
newSelectionIndicatorGraphicsItem->setPen(pen);
newSelectionIndicatorGraphicsItem->setCursor(m_cursor);
}
}
void SelectionIndicator::updateItems(const QList<FormEditorItem*> &itemList)
{
foreach (FormEditorItem *item, itemList) {
if (m_indicatorShapeHash.contains(item)) {
QGraphicsPolygonItem *indicatorGraphicsItem = m_indicatorShapeHash.value(item);
QPolygonF boundingRectInSceneSpace(item->mapToScene(item->qmlItemNode().instanceBoundingRect()));
// alignVertices(boundingRectInSceneSpace, 0.5 / item->formEditorView()->widget()->zoomAction()->zoomLevel());
QPolygonF boundingRectInLayerItemSpace = m_layerItem->mapFromScene(boundingRectInSceneSpace);
indicatorGraphicsItem->setPolygon(boundingRectInLayerItemSpace);
}
}
}
void SelectionIndicator::setCursor(const QCursor &cursor)
{
m_cursor = cursor;
foreach (QGraphicsItem *item, m_indicatorShapeHash)
item->setCursor(cursor);
}
}
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