OgreText.h

//-
//URL TO FREE OGRE TEXT CLASS http://www.ogre3d.org/tikiwiki/tiki-index.php?page=Simple+text&structure=Cookbook

//----------------------------------------------------------------------------
// Lonewolff
//
// Filename:    OgreText.h
// Description: Class for simple text in Ogre (Version 040507:18.30)
//-----------------------------------------------------------------------------


/*
How to make the program run:

OgreText *textItem=new OgreText;
textItem->setText("Hello World!");    // Text to be displayed
                                        // Now it is possible to use the Ogre::String as parameter too
textItem->setPos(0.1f,0.1f);        // Text position, using relative co-ordinates
textItem->setCol(1.0f,1.0f,1.0f,0.5f);    // Text colour (Red, Green, Blue, Alpha)



delete textItem;    // Must do this or there will be memory leaks

*/

#include <OGRE/Ogre.h>
 
#include "OgreTextAreaOverlayElement.h"
#include "OgreStringConverter.h"
 
using namespace Ogre;
 
#ifndef __OgreText_H__
#define __OgreText_H__
 
class OgreText
{
public:
    OgreText()
    {
        olm=OverlayManager::getSingletonPtr();
        if(init==0)
        {
        panel=static_cast<OverlayContainer*>(olm->createOverlayElement("Panel","GUI"));
            panel->setMetricsMode(Ogre::GMM_PIXELS);
            panel->setPosition(0,0);
            panel->setDimensions(1.0f,1.0f);
            overlay=olm->create("GUI_OVERLAY");
            overlay->add2D(panel);
        }
        ++(this->init);
        szElement="element_"+StringConverter::toString(init);
        overlay=olm->getByName("GUI_OVERLAY");
        panel=static_cast<OverlayContainer*>(olm->getOverlayElement("GUI"));
        textArea=static_cast<TextAreaOverlayElement*>(olm->createOverlayElement("TextArea",szElement));
        panel->addChild(textArea);
        overlay->show();
    }
    ~OgreText()
    {
        szElement="element_"+StringConverter::toString(init);
        olm->destroyOverlayElement(szElement);
        --(this->init);
        if(init==0)
        {
            olm->destroyOverlayElement("GUI");
            olm->destroy("GUI_OVERLAY");
        }
    }
    void setText(char *szString)
    {
        textArea->setCaption(szString);
        textArea->setDimensions(1.0f,1.0f);
        textArea->setMetricsMode(Ogre::GMM_RELATIVE);
        textArea->setFontName("BlueHighway");
        textArea->setCharHeight(0.03f);
    }
    void setText(String szString) // now You can use Ogre::String as text
    {
        textArea->setCaption(szString);
        textArea->setDimensions(1.0f,1.0f);
        textArea->setMetricsMode(Ogre::GMM_RELATIVE);
        textArea->setFontName("BlueHighway");
        textArea->setCharHeight(0.03f);
    }
    void setPos(float x,float y)
    {
        textArea->setPosition(x,y);
    }
    void setCol(float R,float G,float B,float I)
    {
        textArea->setColour(Ogre::ColourValue(R,G,B,I));
    }
private:
    OverlayManager *olm;
    OverlayContainer *panel ;
    Overlay *overlay;
    TextAreaOverlayElement *textArea;
    static int init;
    String szElement;
};

 
int OgreText::init=0;


#endif