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/***************************************************************************
* Copyright 2010 Stefan Majewsky <majewsky@gmx.net> *
* *
* This program 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 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library 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 "scene.h"
#include "scene_p.h"
#include <QEvent>
#include <QGraphicsTextItem>
#include <QGraphicsView>
#include <QStyleOptionGraphicsItem>
Tagaro::Scene::Private::Private(KGameRenderer* backgroundRenderer, const QString& backgroundSpriteKey, Tagaro::Scene* parent)
: KGameRendererClient(backgroundRenderer, backgroundSpriteKey)
, m_parent(parent)
, m_mainView(0)
, m_renderSize() //constructed with invalid size (as documented)
, m_adjustingSceneRect(false)
{
connect(parent, SIGNAL(sceneRectChanged(QRectF)), parent, SLOT(_k_updateSceneRect(QRectF)));
}
Tagaro::Scene::Scene(QObject* parent)
: QGraphicsScene(parent)
, d(new Private(0, QString(), this))
{
}
Tagaro::Scene::Scene(KGameRenderer* backgroundRenderer, const QString& backgroundSpriteKey, QObject* parent)
: QGraphicsScene(parent)
, d(new Private(backgroundRenderer, backgroundSpriteKey, this))
{
}
Tagaro::Scene::~Scene()
{
delete d;
}
//BEGIN scene rect stuff
QGraphicsView* Tagaro::Scene::mainView() const
{
return d->m_mainView;
}
void Tagaro::Scene::setMainView(QGraphicsView* mainView)
{
if (d->m_mainView == mainView)
{
return;
}
//remove connections to old main view
if (d->m_mainView)
{
d->m_mainView->removeEventFilter(this);
}
//connect to new main view
if ((d->m_mainView = mainView))
{
d->m_mainView->setScene(this);
d->m_mainView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
d->m_mainView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
d->_k_resetSceneRect();
d->m_mainView->installEventFilter(this);
}
}
bool Tagaro::Scene::Private::_k_resetSceneRect()
{
//force correct scene rect if necessary
if (m_mainView && !m_adjustingSceneRect)
{
m_adjustingSceneRect = true;
m_parent->setSceneRect(m_mainView->rect());
m_mainView->setTransform(QTransform());
m_adjustingSceneRect = false;
return true;
}
return false;
}
bool Tagaro::Scene::eventFilter(QObject* watched, QEvent* event)
{
if (watched == d->m_mainView && event->type() == QEvent::Resize)
{
d->_k_resetSceneRect();
}
return QGraphicsScene::eventFilter(watched, event);
}
void Tagaro::Scene::Private::_k_updateSceneRect(const QRectF& rect)
{
if (!_k_resetSceneRect())
{
//The condition ensures that updateRenderSize() gets only called once
//with the correct scene rect if the scene rect has to be reset.
updateRenderSize(rect.size().toSize());
}
}
//END scene rect stuff
//BEGIN background brush stuff
KGameRendererClient* Tagaro::Scene::backgroundBrushClient() const
{
return d;
}
QSize Tagaro::Scene::backgroundBrushRenderSize() const
{
return d->m_renderSize;
}
void Tagaro::Scene::setBackgroundBrushRenderSize(const QSize& size)
{
if (d->m_renderSize != size)
{
d->m_renderSize = size;
d->updateRenderSize(sceneRect().size().toSize());
}
}
void Tagaro::Scene::Private::updateRenderSize(const QSize& sceneSize)
{
setRenderSize(m_renderSize.isValid() ? m_renderSize : sceneSize);
}
void Tagaro::Scene::Private::receivePixmap(const QPixmap& pixmap)
{
m_parent->setBackgroundBrush(pixmap);
}
//END background brush stuff
#include "moc_scene.cpp"
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