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Diffstat (limited to 'dggui/texture.cc')
-rw-r--r-- | dggui/texture.cc | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/dggui/texture.cc b/dggui/texture.cc new file mode 100644 index 0000000..8cd7040 --- /dev/null +++ b/dggui/texture.cc @@ -0,0 +1,72 @@ +/* -*- 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:: |