New TexturedBox class.

1 files changed, 118 insertions, 0 deletions

diff --git a/plugingui/texturedbox.h b/plugingui/texturedbox.h
new file mode 100644
index 0000000..51aead5
--- /dev/null
+++ b/plugingui/texturedbox.h
@@ -0,0 +1,118 @@
+/* -*- 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;
+
+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 _x;
+	std::size_t _y;
+	std::size_t _width{100};
+	std::size_t _height{100};
+	std::size_t dx1;
+	std::size_t dx2;
+	std::size_t dx3;
+	std::size_t dy1;
+	std::size_t dy2;
+	std::size_t dy3;
+
+	Colour outOfRange{0.0f, 0.0f, 0.0f, 0.0f};
+};
+
+} // GUI::