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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:06:44 +0000 |
commit | ed5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch) | |
tree | 7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /vcl/inc/pdf/Matrix3.hxx | |
parent | Initial commit. (diff) | |
download | libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip |
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vcl/inc/pdf/Matrix3.hxx')
-rw-r--r-- | vcl/inc/pdf/Matrix3.hxx | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/vcl/inc/pdf/Matrix3.hxx b/vcl/inc/pdf/Matrix3.hxx new file mode 100644 index 000000000..795b2af4b --- /dev/null +++ b/vcl/inc/pdf/Matrix3.hxx @@ -0,0 +1,51 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#pragma once + +#include <vcl/dllapi.h> +#include <tools/gen.hxx> + +namespace vcl::pdf +{ +// matrix helper class +// TODO: use basegfx matrix class instead or derive from it + +/* for sparse matrices of the form (2D linear transformations) + * f[0] f[1] 0 + * f[2] f[3] 0 + * f[4] f[5] 1 + */ +class Matrix3 +{ + double f[6]; + + void set(const double* pn) + { + for (int i = 0; i < 6; i++) + f[i] = pn[i]; + } + +public: + Matrix3(); + + void skew(double alpha, double beta); + void scale(double sx, double sy); + void rotate(double angle); + void translate(double tx, double ty); + void invert(); + + double get(size_t i) const { return f[i]; } + + Point transform(const Point& rPoint) const; +}; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |