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Diffstat (limited to 'dggui/texturedbox.h')
| -rw-r--r-- | dggui/texturedbox.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/dggui/texturedbox.h b/dggui/texturedbox.h new file mode 100644 index 0000000..7aa3967 --- /dev/null +++ b/dggui/texturedbox.h @@ -0,0 +1,119 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * texturedbox.h + * + * Sun Jun 5 12:22:14 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. + */ +#pragma once + +#include "drawable.h" +#include "imagecache.h" +#include "texture.h" + +namespace GUI +{ + +class TexturedBox + : public Drawable +{ +public: + //! Draw a box from 9 image segments nested inside the same image. + //! An image says more than a thousand words: + //! .----------------------------------------. + //! | (x0, y0) | + //! | \ dx1 dx2 dx3 | + //! | .-----+-----------+-----. \ | + //! | dy1 | A | <--B--> | C | | | + //! | +-----+-----------+-----+ | | + //! | | /|\ | /|\ | /|\ | | h | + //! | | | | | | | | | e | + //! | dy2 | D | <--E--> | F | > i | + //! | | | | | | | | | g | + //! | | \|/ | \|/ | \|/ | | h | + //! | +-----+-----------+-----+ | t | + //! | dy3 | G | <--H--> | I | | | + //! | `-----+-----------+-----` / | + //! | | + //! | \___________ ___________/ | + //! | V | + //! | width | + //! `----------------------------------------` + //! + //! \param image_cache A reference to the image cache object. + //! \param filename The filename of the texture image to use. + //! \param (x0, y0) is coordinate of the upper left corner of the A segment. + //! \param (width, height) is the total rendered size of the Box. + //! \param dx1 is the width of the A, C and F segments. + //! \param dx2 is the width of the B, E and H segments. + //! \param dx3 is the width of the C, F and I segments. + //! \param dy1 is the height of the A, B and C segments. + //! \param dy2 is the height of the D, E and F segments. + //! \param dy3 is the height of the G, G and I segments. + //! + //! Segments A, C, G and I are drawn with no stretch. + //! Segments B and H are stretched horizontally to fill the + //! gaps between A, C and G, I so that resulting width is 'width' + //! Segments D and F are stretched vertically to fill the + //! gaps between A, G and C, I so that resulting height is 'height' + //! Segment E will be stretched both horizontally and vertically + //! to fill the inner space between B, H and D, F. + TexturedBox(ImageCache& image_cache, const std::string& filename, + std::size_t x0, std::size_t y0, + std::size_t dx1, std::size_t dx2, std::size_t dx3, + std::size_t dy1, std::size_t dy2, std::size_t dy3); + + // From Drawable: + std::size_t width() const override; + std::size_t height() const override; + + void setSize(std::size_t width, std::size_t height); + + const Colour& getPixel(std::size_t x, std::size_t y) const override; + const std::uint8_t* line(std::size_t y, + std::size_t x_offset = 0) const override; + bool hasAlpha() const override; + +private: + Texture seg_a; + Texture seg_b; + Texture seg_c; + Texture seg_d; + Texture seg_e; + Texture seg_f; + Texture seg_g; + Texture seg_h; + Texture seg_i; + + std::size_t dx1; + std::size_t dx2; + std::size_t dx3; + std::size_t dy1; + std::size_t dy2; + std::size_t dy3; + std::size_t _width{100}; + std::size_t _height{100}; + + Colour outOfRange{0.0f, 0.0f, 0.0f, 0.0f}; +}; + +} // GUI:: |