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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* texture.cc
*
* Sat Jun 4 21:18:11 CEST 2016
* Copyright 2016 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "texture.h"
namespace GUI
{
Texture::Texture(ImageCache& image_cache, const std::string& filename,
std::size_t x, std::size_t y,
std::size_t width, std::size_t height)
: ScopedImageBorrower(image_cache, filename)
, _x(x)
, _y(y)
, _width(width>image.width()?image.width():width)
, _height(height>image.height()?image.height():height)
{
}
size_t Texture::width() const
{
return _width;
}
size_t Texture::height() const
{
return _height;
}
const Colour& Texture::getPixel(size_t x, size_t y) const
{
if(x > _width || y > _height)
{
return outOfRange;
}
return image.getPixel(x + _x, y + _y);
}
const std::uint8_t* Texture::line(std::size_t y, std::size_t x_offset) const
{
return image.line(y + _y) + _x * 4 + x_offset * 4;
}
bool Texture::hasAlpha() const
{
return true;
}
} // GUI::
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