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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2016 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/Sprite.hpp>
#include <SFML/Graphics/Texture.hpp>
#include <SFML/Graphics/RenderTarget.hpp>
#include <cstdlib>
namespace sf
{
////////////////////////////////////////////////////////////
Sprite::Sprite() :
m_texture (NULL),
m_textureRect()
{
}
////////////////////////////////////////////////////////////
Sprite::Sprite(const Texture& texture) :
m_texture (NULL),
m_textureRect()
{
setTexture(texture);
}
////////////////////////////////////////////////////////////
Sprite::Sprite(const Texture& texture, const IntRect& rectangle) :
m_texture (NULL),
m_textureRect()
{
setTexture(texture);
setTextureRect(rectangle);
}
////////////////////////////////////////////////////////////
void Sprite::setTexture(const Texture& texture, bool resetRect)
{
// Recompute the texture area if requested, or if there was no valid texture & rect before
if (resetRect || (!m_texture && (m_textureRect == sf::IntRect())))
setTextureRect(IntRect(0, 0, texture.getSize().x, texture.getSize().y));
// Assign the new texture
m_texture = &texture;
}
////////////////////////////////////////////////////////////
void Sprite::setTextureRect(const IntRect& rectangle)
{
if (rectangle != m_textureRect)
{
m_textureRect = rectangle;
updatePositions();
updateTexCoords();
}
}
////////////////////////////////////////////////////////////
void Sprite::setColor(const Color& color)
{
// Update the vertices' color
m_vertices[0].color = color;
m_vertices[1].color = color;
m_vertices[2].color = color;
m_vertices[3].color = color;
}
////////////////////////////////////////////////////////////
const Texture* Sprite::getTexture() const
{
return m_texture;
}
////////////////////////////////////////////////////////////
const IntRect& Sprite::getTextureRect() const
{
return m_textureRect;
}
////////////////////////////////////////////////////////////
const Color& Sprite::getColor() const
{
return m_vertices[0].color;
}
////////////////////////////////////////////////////////////
FloatRect Sprite::getLocalBounds() const
{
float width = static_cast<float>(std::abs(m_textureRect.width));
float height = static_cast<float>(std::abs(m_textureRect.height));
return FloatRect(0.f, 0.f, width, height);
}
////////////////////////////////////////////////////////////
FloatRect Sprite::getGlobalBounds() const
{
return getTransform().transformRect(getLocalBounds());
}
////////////////////////////////////////////////////////////
void Sprite::draw(RenderTarget& target, RenderStates states) const
{
if (m_texture)
{
states.transform *= getTransform();
states.texture = m_texture;
target.draw(m_vertices, 4, TriangleStrip, states);
}
}
////////////////////////////////////////////////////////////
void Sprite::updatePositions()
{
FloatRect bounds = getLocalBounds();
m_vertices[0].position = Vector2f(0, 0);
m_vertices[1].position = Vector2f(0, bounds.height);
m_vertices[2].position = Vector2f(bounds.width, 0);
m_vertices[3].position = Vector2f(bounds.width, bounds.height);
}
////////////////////////////////////////////////////////////
void Sprite::updateTexCoords()
{
float left = static_cast<float>(m_textureRect.left);
float right = left + m_textureRect.width;
float top = static_cast<float>(m_textureRect.top);
float bottom = top + m_textureRect.height;
m_vertices[0].texCoords = Vector2f(left, top);
m_vertices[1].texCoords = Vector2f(left, bottom);
m_vertices[2].texCoords = Vector2f(right, top);
m_vertices[3].texCoords = Vector2f(right, bottom);
}
} // namespace sf
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