selectionBox.cpp

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/*
 * selectionBox.cpp
 *
 *  Created on: Feb 23, 2012
 *      Author: sushil
 */


#include <selectionBox.h>

void OgreGFX::SelectionBox::convertAndReadyCorners(float left, float top, float right, float bottom){

        left = left * 2 - 1;
        right = right * 2 - 1;
        top = 1 - top * 2;
        bottom = 1 - bottom * 2;
        clear();
        begin("", Ogre::RenderOperation::OT_LINE_STRIP);
        position(left, top, -1);
        position(right, top, -1);
        position(right, bottom, -1);
        position(left, bottom, -1);
        position(left, top, -1);
        end();
        setBoundingBox(Ogre::AxisAlignedBox::BOX_INFINITE);
}

void OgreGFX::SelectionBox::setCorners(const Ogre::Vector2& topLeft, const Ogre::Vector2& bottomRight)
{
        this->convertAndReadyCorners(topLeft.x, topLeft.y, bottomRight.x, bottomRight.y);
}

OgreGFX::SelectionBox::SelectionBox(const Ogre::String& name) : Ogre::ManualObject(name){
        Ogre::ManualObject::setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY);
        Ogre::ManualObject::setUseIdentityProjection(true);
        Ogre::ManualObject::setUseIdentityView(true);
        Ogre::ManualObject::setQueryFlags(0);
}

OgreGFX::SelectionBox::~SelectionBox(void){

}

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