glutSolidSphere was not declared in this scope error

hey i am compiling the file which i have attached to this post and i am getting the following error..i dont knw wats wrong with it...please help

main.cpp:308: error: 'glutSolidSphere' was not declared in this scope

I am not so familiar with OpenGL, but I guess you need some glut library / header.
because glutSolidSphere doesnt seem to be Qt function...

yeah my problem is i dont knw to translate glutSolidSphere & glutSolidCube line to QT.....so can someone please guide me through how to do it...thank you

Code:

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void AntiAliasWidget::drawBasketBaloon()
{
        glPushMatrix();                    //Save the current transformation state
        glTranslatef(_height*1.7f-7.0f, 5.0f, -2.0f); //Move to the center of the baloon
        glColor3f(0.5f, 0.5f, 1.0f);
        glutSolidSphere(0.4f, 200, 200);
        glPopMatrix();                     //Undo the move to the center of the baloon
        glPushMatrix();                    //Save the current transformation state
        glTranslatef(_height*1.7f-7.0f, 4.0f, -2.0f); //Move to the center of the light
        glColor3f(1.0f, 0.7f, 0.0f);
        glutSolidCube(0.2f);
        glBegin(GL_LINES);
        glColor3f(0.0f, 0.0f, 0.0f);   //Set color of the bar to black
        glVertex3f(0.0f, 0.7f, 0.0f);
        glVertex3f(0.1f, 0.0f, 0.1f);
        glVertex3f(0.0f, 0.7f, 0.0f);
        glVertex3f(0.1f, 0.0f, -0.1f);
        glVertex3f(0.0f, 0.7f, 0.0f);
        glVertex3f(-0.1f, 0.0f, 0.1f);
        glVertex3f(0.0f, 0.7f, 0.0f);
        glVertex3f(-0.1f, 0.0f, -0.1f);
        glEnd();
        glPopMatrix();                     //Undo the move to the center of the baloon
        glFlush();
}

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