#include "textbox.h"
#include "gpl_assert.h"

Textbox::Textbox() :  Game_object(/* red = */ 0.0,
                                  /* green = */ 0.0,
                                  /* blue = */ 0.0
                           )
{
        m_text = "";
        m_size = 0.1;
        m_space = 10;
        register_member_variable("text", &m_text);
        register_member_variable("size", &m_size);
        register_member_variable("space", &m_space);
        m_object_type_name = "Textbox";
        m_h = (int) (100 * m_size) + 1;
        m_w = m_space;
}

void 
Textbox::build_display_list()
{
    assert(m_display_list);

    glNewList(m_display_list, GL_COMPILE);
    glMatrixMode(GL_MODELVIEW);
    glColor3f(m_red, m_green, m_blue);
    double cur_x = m_x;

    for (unsigned int i = 0; i < m_text.length(); i++)
    {
        glPushMatrix();
        glTranslated(cur_x, m_y, 0);
        glScaled(m_size, m_size, 1);
        glutStrokeCharacter(GLUT_STROKE_ROMAN, m_text[i]);
        glPopMatrix();
        cur_x += (glutStrokeWidth(GLUT_STROKE_ROMAN,m_text[i])+m_space)*m_size;
    }
    glEndList();


    // update our height & width in case our size has changed
    m_h = (int) (100 * m_size) + 1;
    m_w = (int) cur_x - m_x;
}