engine/components/graphics/discsectionrenderer/discsectionrenderercomponent.cpp

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/******************************************************************************
 * This file is part of the Gluon Development Platform
 * Copyright (C) 2010 Kim Jung Nissen <jungnissen@gmail.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "discsectionrenderercomponent.h"

#include "graphics/meshes/discsectionmesh.h"
#include "graphics/item.h"
#include "engine/gameobject.h"
#include "engine/asset.h"

#include <QMimeData>

#include <cmath>

REGISTER_OBJECTTYPE( GluonEngine, DiscSectionRendererComponent )

using namespace GluonEngine;

class DiscSectionRendererComponent::DiscSectionRendererComponentPrivate
{
    public:
        DiscSectionRendererComponentPrivate()
        {
            item = 0;
            mesh = 0;
            texture = 0;
            nbPoints = 3;
            radius = 5.0f;
            degrees  = 90.0f;
            arcCenter = M_PI / 2.0f;
            color.setRgb( 255, 255, 255 );
        }

        GluonGraphics::Item* item;
        GluonGraphics::DiscSectionMesh* mesh;

        GluonEngine::Asset* texture;

        uint nbPoints;
        float radius;
        float degrees;
        float arcCenter;
        QColor color;
};

DiscSectionRendererComponent::DiscSectionRendererComponent( QObject* parent )
    : Component( parent )
    , d( new DiscSectionRendererComponentPrivate )
{

}

DiscSectionRendererComponent::DiscSectionRendererComponent( const DiscSectionRendererComponent& other )
    : Component( other )
    , d( other.d )
{
}

DiscSectionRendererComponent::~DiscSectionRendererComponent()
{
    delete d;
}

QString
DiscSectionRendererComponent::category() const
{
    return QString( "Graphics Rendering" );
}

void DiscSectionRendererComponent::initialize()
{
    if( !d->item )
    {
        d->mesh = new GluonGraphics::DiscSectionMesh( gameObject()->position(), d->radius, d->nbPoints, d->degrees, d->arcCenter, d->color, this );
        d->item = new GluonGraphics::Item( d->mesh, this );
        d->item->setColor( d->color );
    }

    if( d->texture )
    {
        if( !d->texture->isLoaded() )
            d->texture->load();

        const QMimeData* data = d->texture->data();
        if( data->hasImage() )
        {
            d->mesh->setTexture( data->imageData().value<QImage>() );
        }
    }
}

void DiscSectionRendererComponent::start()
{
}

void DiscSectionRendererComponent::draw( int timeLapse )
{
    Q_UNUSED( timeLapse )

    if( d->item )
    {
        d->item->setMatrix( gameObject()->transform() );
    }
}

void DiscSectionRendererComponent::cleanup()
{
    if( d->item )
    {
        delete d->item;
        d->item = 0;
        d->mesh = 0;
    }
}

float DiscSectionRendererComponent::radius()
{
    return d->radius;
}

void DiscSectionRendererComponent::setRadius( float newRadius )
{
    d->radius = newRadius;
    if( gameObject() )
        setDiscSection( gameObject()->position(), d->radius, d->nbPoints, d->degrees, d->arcCenter, d->color );
}

uint DiscSectionRendererComponent::nbPoints()
{
    return d->nbPoints;
}

void DiscSectionRendererComponent::setNbPoints( uint newNbPoints )
{
    d->nbPoints = newNbPoints;
    if( gameObject() )
        setDiscSection( gameObject()->position(), d->radius, d->nbPoints, d->degrees, d->arcCenter, d->color );
}

void DiscSectionRendererComponent::setDiscSection( QVector3D position, float radius, uint nbPoints, float degrees, float arcCenter, QColor color )
{
    if( d->mesh )
        d->mesh->setDiscSection( position, radius, nbPoints, degrees, arcCenter, color );
}

float DiscSectionRendererComponent::degrees()
{
    return d->degrees;
}

void DiscSectionRendererComponent::setDegrees( float newDegrees )
{
    if( newDegrees > 359.9f )
    {
        d->degrees = 359.9f;
    }
    else if( newDegrees == 0 )
    {
        d->degrees = 1;
    }
    else
    {
        d->degrees = newDegrees;
    }

    if( gameObject() )
        setDiscSection( gameObject()->position(), d->radius, d->nbPoints, d->degrees, d->arcCenter, d->color );
}

void DiscSectionRendererComponent::setColor( const QColor& color )
{
    d->color = color;
    if( d->mesh )
    {
        d->mesh->setColor( color );
    }
}

void DiscSectionRendererComponent::setColor( int r, int g, int b, int a )
{
    setColor( QColor( r, g, b, a ) );
}

QColor DiscSectionRendererComponent::color()
{
    return d->color;
}

Asset* DiscSectionRendererComponent::texture()
{
    return d->texture;
}

void DiscSectionRendererComponent::setTexture( Asset* asset )
{
    d->texture = asset;

    if( asset )
    {
        if( d->mesh && asset->isLoaded() )
        {
            d->mesh->setTexture( asset->data()->imageData().value<QImage>() );
        }
    }
}

float DiscSectionRendererComponent::arcCenter()
{
    return d->arcCenter * ( 180.0f / M_PI );
}

void DiscSectionRendererComponent::setArcCenter( float newArcCenter )
{
    if( newArcCenter > 359.9f )
    {
        newArcCenter = 359.9f;
    }
    else if( newArcCenter == 0 )
    {
        newArcCenter = 1;
    }
    else
    {
        newArcCenter = newArcCenter;
    }

    d->arcCenter = newArcCenter * ( M_PI / 180.0f );

    if( gameObject() )
        setDiscSection( gameObject()->position(), d->radius, d->nbPoints, d->degrees, d->arcCenter, d->color );
}

Q_EXPORT_PLUGIN2( gluon_component_discsectionrenderer, GluonEngine::DiscSectionRendererComponent );

#include "discsectionrenderercomponent.moc"

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