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/*
render/primitives.h
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#ifndef __INCLUDED_RENDER_PRIMITIVES_H__
#define __INCLUDED_RENDER_PRIMITIVES_H__
#include "auxiliary/functions.h"
#include "math/vector2f.h"
#include "render/gl.h"
#include "render/text.h"
#include "render/textures.h"
namespace render
{
/// drawing primitives for the user interface
namespace primitives
{
/// draw a border
inline void border(math::Vector2f const &location, math::Vector2f const &size)
{
using namespace render::gl;
begin(LineLoop);
vertex(location.x +1 , location.y);
vertex(location.x + size.x, location.y);
vertex(location.x + size.x, location.y + size.y -1);
vertex(location.x +1, location.y + size.y - 1);
end();
}
/// draw a rectangle
inline void rectangle(math::Vector2f const &location, math::Vector2f const &size)
{
using namespace render::gl;
begin(Quads);
vertex(location.x +1 , location.y);
vertex(location.x + size.x, location.y);
vertex(location.x + size.x, location.y + size.y -1);
vertex(location.x +1, location.y + size.y - 1);
end();
}
/// draw a rectangular bitmap
inline void bitmap(math::Vector2f const &location, math::Vector2f const &size, std::string const &texture)
{
using namespace render::gl;
render::Textures::bind("bitmaps/" + texture);
gl::enable(GL_TEXTURE_2D);
begin(Quads);
glTexCoord2f(0.0f, 0.0f);
vertex(location.x +1 , location.y);
glTexCoord2f(1.0f, 0.0f);
vertex(location.x + size.x, location.y);
glTexCoord2f(1.0f, 1.0f);
vertex(location.x + size.x, location.y + size.y -1);
glTexCoord2f(0.0f, 1.0f);
vertex(location.x +1, location.y + size.y - 1);
end();
gl::disable(GL_TEXTURE_2D);
}
/// draw one line of centered text
inline void text_centered(math::Vector2f const &location, math::Vector2f const &size, std::string const &text)
{
Text::setfont("gui", 14, 24);
gl::enable(GL_TEXTURE_2D);
math::Vector2f v(location);
v.x += (size.x - aux::text_strip(text).size() * Text::fontwidth()) /2.0f;
v.y += (size.y - Text::fontheight()) / 2.0f;
Text::draw(v.x, v.y, text);
gl::disable(GL_TEXTURE_2D);
}
}
}
#endif // __INCLUDED_RENDER_PRIMITIVES_H__
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