/*************************************************************************
 * Copyright (c) 2011 AT&T Intellectual Property 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors: Details at https://graphviz.org
 *************************************************************************/

#include <cgraph/alloc.h>
#include <glcomp/glcomplabel.h>
#include <glcomp/glcompfont.h>
#include <glcomp/glcompset.h>
#include <glcomp/glutils.h>

static void glCompLabelDraw(void *label) {
  glCompLabel *p = label;
  glCompCommon ref;
  ref = p->common;
  glCompCalcWidget((glCompCommon *)p->common.parent, &p->common, &ref);
  /*draw background */
  if (!p->transparent) {
    glCompSetColor(&p->common.color);
    glBegin(GL_QUADS);
    glVertex3d(ref.refPos.x, ref.refPos.y, ref.refPos.z);
    glVertex3d(ref.refPos.x + ref.width, ref.refPos.y, ref.refPos.z);
    glVertex3d(ref.refPos.x + ref.width, ref.refPos.y + ref.height,
               ref.refPos.z);
    glVertex3d(ref.refPos.x, ref.refPos.y + ref.height, ref.refPos.z);
    glEnd();
  }
  glCompRenderText(p->common.font, (glCompObj *)p);
}

glCompLabel *glCompLabelNew(glCompObj *par, char *text) {
    glCompLabel *p = gv_alloc(sizeof(glCompLabel));
    glCompInitCommon((glCompObj*)p, par, 0, 0);
    p->objType = glLabelObj;
    p->transparent=1;

    p->text = gv_strdup(text);
    p->common.font = glNewFontFromParent ((glCompObj*)p, text);
    p->common.functions.draw = glCompLabelDraw;

    return p;
}
