New TexturedBox class.

1 files changed, 136 insertions, 0 deletions

diff --git a/plugingui/texturedbox.cc b/plugingui/texturedbox.cc
new file mode 100644
index 0000000..02f695c
--- /dev/null
+++ b/plugingui/texturedbox.cc
@@ -0,0 +1,136 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            texturedbox.cc
+ *
+ *  Sun Jun  5 12:22:15 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 "texturedbox.h"
+
+#include <cassert>
+
+namespace GUI
+{
+
+TexturedBox::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)
+	: seg_a(image_cache, filename, x0            , y0            , dx1, dy1)
+	, seg_b(image_cache, filename, x0 + dx1      , y0            , dx2, dy1)
+	, seg_c(image_cache, filename, x0 + dx1 + dx2, y0            , dx3, dy1)
+	, seg_d(image_cache, filename, x0            , y0 + dy1      , dx1, dy2)
+	, seg_e(image_cache, filename, x0 + dx1      , y0 + dy1      , dx2, dy2)
+	, seg_f(image_cache, filename, x0 + dx1 + dx2, y0 + dy1      , dx3, dy2)
+	, seg_g(image_cache, filename, x0            , y0 + dy1 + dy2, dx1, dy3)
+	, seg_h(image_cache, filename, x0 + dx1      , y0 + dy1 + dy2, dx2, dy3)
+	, seg_i(image_cache, filename, x0 + dx1 + dx2, y0 + dy1 + dy2, dx3, dy3)
+	, _x(x0)
+	, _y(y0)
+	, dx1(dx1)
+	, dx2(dx2)
+	, dx3(dx3)
+	, dy1(dy1)
+	, dy2(dy2)
+	, dy3(dy3)
+{
+}
+
+std::size_t TexturedBox::width() const
+{
+	return _width;
+}
+
+std::size_t TexturedBox::height() const
+{
+	return _height;
+}
+
+void TexturedBox::setSize(std::size_t width, std::size_t height)
+{
+	_width = width;
+	_height = height;
+}
+
+const Colour& TexturedBox::getPixel(std::size_t x, std::size_t y) const
+{
+	assert(x < _width);
+	assert(y < _height);
+
+	if(y < dy1) // row 1
+	{
+		if(x < dx1) // col 1
+		{
+			return seg_a.getPixel(x, y);
+		}
+		else if(x < (_width - dx3)) // col 2
+		{
+			float scale = (float)(x - dx1) / (float)(_width - dx1 - dx3);
+			assert(seg_b.width() == dx2);
+			return seg_b.getPixel(scale * dx2, y);
+		}
+		else // col 3
+		{
+			return seg_c.getPixel(x - (_width - dx3), y);
+		}
+	}
+	else if(y < (_height - dy3)) // row 2
+	{
+		if(x < dx1) // col 1
+		{
+			// TODO: Apply vertical scale
+			float scale = (float)(y - dy1) / (float)(_height - dy1 - dy3);
+			return seg_d.getPixel(x, scale * dy2);
+		}
+		else if(x < (_width - dx3)) // col 2
+		{
+			float scale_x = (float)(x - dx1) / (float)(_width - dx1 - dx3);
+			float scale_y = (float)(y - dy1) / (float)(_height - dy1 - dy3);
+			return seg_e.getPixel(scale_x * dx2, scale_y * dy2);
+		}
+		else // col 3
+		{
+			float scale = (float)(y - dy1) / (float)(_height - dy1 - dy3);
+			return seg_f.getPixel(x - (_width - dx3), scale * dy2);
+		}
+	}
+	else // row 3
+	{
+		if(x < dx1) // col 1
+		{
+			return seg_g.getPixel(x, y - (_height - dy3));
+		}
+		else if(x < (_width - dx3)) // col 2
+		{
+			float scale = (float)(x - dx1) / (float)(_width - dx1 - dx3);
+			return seg_h.getPixel(scale * dx2, y - (_height - dy3));
+		}
+		else // col 3
+		{
+			return seg_i.getPixel(x - (_width - dx3), y - (_height - dy3));
+		}
+	}
+
+	return outOfRange;
+}
+
+} // GUI::