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Diffstat (limited to 'src/2geom/viewbox.cpp')
| -rw-r--r-- | src/2geom/viewbox.cpp | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/src/2geom/viewbox.cpp b/src/2geom/viewbox.cpp deleted file mode 100644 index 69bd0c487..000000000 --- a/src/2geom/viewbox.cpp +++ /dev/null @@ -1,133 +0,0 @@ -/** - * \file - * \brief Convenience class for SVG viewBox handling - *//* - * Authors: - * Krzysztof Kosiński <tweenk.pl@gmail.com> - * - * Copyright (C) 2013 Authors - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - */ - -#include <2geom/transforms.h> -#include <2geom/viewbox.h> - -namespace Geom { - -/** Convert an align specification to coordinate fractions. */ -Point align_factors(Align g) { - Point p; - switch (g) { - case ALIGN_XMIN_YMIN: - p[X] = 0.0; - p[Y] = 0.0; - break; - case ALIGN_XMID_YMIN: - p[X] = 0.5; - p[Y] = 0.0; - break; - case ALIGN_XMAX_YMIN: - p[X] = 1.0; - p[Y] = 0.0; - break; - case ALIGN_XMIN_YMID: - p[X] = 0.0; - p[Y] = 0.5; - break; - case ALIGN_XMID_YMID: - p[X] = 0.5; - p[Y] = 0.5; - break; - case ALIGN_XMAX_YMID: - p[X] = 1.0; - p[Y] = 0.5; - break; - case ALIGN_XMIN_YMAX: - p[X] = 0.0; - p[Y] = 1.0; - break; - case ALIGN_XMID_YMAX: - p[X] = 0.5; - p[Y] = 1.0; - break; - case ALIGN_XMAX_YMAX: - p[X] = 1.0; - p[Y] = 1.0; - break; - default: - break; - } - return p; -} - -/** Obtain transformation from the viewbox to the specified viewport. */ -Affine ViewBox::transformTo(Geom::Rect const &viewport) const -{ - if (!_box) { - return Geom::Affine::identity(); - } - - // 1. translate viewbox to origin - Geom::Affine total = Translate(-_box->min()); - - // 2. compute scale - Geom::Point vdims = viewport.dimensions(); - Geom::Point bdims = _box->dimensions(); - Geom::Scale scale(vdims[X] / bdims[X], vdims[Y] / bdims[Y]); - - if (_align == ALIGN_NONE) { - // apply non-uniform scale - // = Scale(_box->dimensions()).inverse() * Scale(viewport.dimensions()) - total *= scale * Translate(viewport.min()); - } else { - double uscale = 0; - if (_expansion == EXPANSION_MEET) { - uscale = std::min(scale[X], scale[Y]); - } else { - uscale = std::max(scale[X], scale[Y]); - } - scale = Scale(uscale); - - // compute offset for align - Geom::Point offset = bdims * scale - vdims; - offset *= Scale(align_factors(_align)); - total *= Translate(-offset); - } - - return total; -} - -} // namespace Geom - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |