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/*
* Copyright 2008-2009 Ben Boeckel <MathStuf@gmail.com>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
// Header include
#include "WorldMapItem.h"
// Sigmodr widget includes
#include "TileItem.h"
#include "WorldMapPlacement.h"
// Sigmod includes
#include <sigmod/Game.h>
#include <sigmod/Map.h>
// KDE includes
#include <KColorScheme>
// Qt includes
#include <QtCore/QtConcurrentFilter>
#include <QtGui/QGraphicsScene>
#include <QtGui/QGraphicsSceneMouseEvent>
#include <QtGui/QGraphicsSimpleTextItem>
#include <QtGui/QKeyEvent>
#include <QtGui/QPainter>
#include <QtGui/QStyleOptionGraphicsItem>
using namespace Sigmod;
using namespace Sigmodr::Widgets;
static bool isSetWorldMapItem(QGraphicsItem* item)
{
WorldMapItem* world = qgraphicsitem_cast<WorldMapItem*>(item);
return world && world->isLocked();
}
WorldMapItem::WorldMapItem(Game* game, Map* map, QGraphicsScene* parent) :
QObject(parent),
m_game(game),
m_map(map),
m_locked(false),
m_tag(new QGraphicsSimpleTextItem(this)),
m_label(new QGraphicsSimpleTextItem(this))
{
setAcceptHoverEvents(true);
setFlags(ItemIsMovable | ItemIsFocusable | ItemDoesntPropagateOpacityToChildren);
setOpacity(.5);
m_tag->setText(QString::number(m_map->id()));
m_tag->setPos(-5, -8);
m_label->hide();
mapChanged();
}
WorldMapItem::~WorldMapItem()
{
qDeleteAll(m_tiles);
}
QRectF WorldMapItem::boundingRect() const
{
return QRect(0, 0, m_map->width(), m_map->height()).adjusted(-1, -1, 1, 1);
}
void WorldMapItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
Q_UNUSED(widget)
painter->setPen(QPen(m_locked ? Qt::red : Qt::black, 2));
painter->drawRect(QRect(0, 0, m_map->width(), m_map->height()));
painter->setBrush(QBrush(Qt::yellow));
if (option->state & QStyle::State_MouseOver)
{
painter->setPen(QPen(KStatefulBrush(KColorScheme::View, KColorScheme::HoverColor).brush(QPalette::Active), 3));
painter->drawRect(boundingRect());
}
}
bool WorldMapItem::collidesWithItem(const QGraphicsItem* other, Qt::ItemSelectionMode mode) const
{
Q_UNUSED(mode)
const WorldMapItem* item = qgraphicsitem_cast<const WorldMapItem*>(other);
if (!item)
return false;
const QRectF rect = QRectF(scenePos(), QPointF(m_map->width(), m_map->height())).adjusted(1, 1, -1, -1);
const QRectF otherRect(item->scenePos(), QPointF(item->m_map->width(), item->m_map->height()));
return !rect.intersected(otherRect).isNull();
}
int WorldMapItem::type() const
{
return Type;
}
bool WorldMapItem::isLocked() const
{
return m_locked;
}
void WorldMapItem::hoverEnterEvent(QGraphicsSceneHoverEvent* event)
{
m_label->show();
QGraphicsItem::hoverEnterEvent(event);
update();
}
void WorldMapItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* event)
{
m_label->hide();
QGraphicsItem::hoverLeaveEvent(event);
update();
}
void WorldMapItem::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
QList<QGraphicsItem*> items = scene()->items();
QList<QGraphicsItem*> cItems = scene()->items(QRectF(event->scenePos() - event->buttonDownPos(Qt::LeftButton), QSizeF(m_map->width(), m_map->height())));
QtConcurrent::blockingFilter(items, isSetWorldMapItem);
QtConcurrent::blockingFilter(cItems, isSetWorldMapItem);
items.removeAll(this);
cItems.removeAll(this);
if (cItems.size())
{
WorldMapPlacement placement(QSize(m_map->width(), m_map->height()));
foreach (QGraphicsItem* item, items)
{
WorldMapItem* mapItem = qgraphicsitem_cast<WorldMapItem*>(item);
placement.addRect(QRectF(item->scenePos(), QSizeF(mapItem->m_map->width(), mapItem->m_map->height())));
}
setPos(placement.find(((QPointF(m_map->width(), m_map->height()) / 2.) + event->scenePos() - event->buttonDownPos(Qt::LeftButton)).toPoint()));
}
else
setPos(event->scenePos() - event->buttonDownPos(Qt::LeftButton));
event->accept();
moveTo(scenePos().toPoint());
update();
}
void WorldMapItem::keyPressEvent(QKeyEvent* event)
{
if (event->key() == Qt::Key_Space)
{
QList<QGraphicsItem*> items;
if (!m_locked)
{
items = scene()->items(QRectF(scenePos(), QSizeF(m_map->width(), m_map->height())));
QtConcurrent::blockingFilter(items, isSetWorldMapItem);
items.removeAll(this);
QMutableListIterator<QGraphicsItem*> i(items);
while (i.hasNext())
{
i.next();
if (!collidesWithItem(i.value()))
i.remove();
}
}
if (!items.size())
{
event->accept();
m_locked = !m_locked;
setFlag(ItemIsMovable, !m_locked);
update();
WorldMapPlacement::invalidateCache();
return;
}
}
event->ignore();
}
void WorldMapItem::moveTo(const QPoint& point)
{
m_game->setMapPosition(m_map->id(), point);
}
void WorldMapItem::mapChanged()
{
qDeleteAll(m_tiles);
m_tiles.clear();
for (int i = 0; i < m_map->tileCount(); ++i)
{
TileItem* item = new TileItem(m_map, m_map->tile(i), NULL);
item->setAcceptHoverEvents(false);
item->setFlag(ItemIsMovable, false);
item->setFlag(ItemIsSelectable, false);
addToGroup(item);
m_tiles.append(item);
connect(this, SIGNAL(maskTiles(bool)), item, SLOT(drawCollisionMask(bool)));
}
resetLabel();
}
void WorldMapItem::resetLabel()
{
m_label->setText(m_map->name());
QSizeF size = m_label->boundingRect().size() / 2 - boundingRect().size() / 2;
m_label->setPos(-size.width(), -size.height());
}
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