From 5a068e585429c9aabfbb36f7c9f028c0acc578aa Mon Sep 17 00:00:00 2001 From: Tomaž Vajngerl Date: Mon, 30 Dec 2019 20:38:21 +0100 Subject: pdf: extract Matrix3 to it's own files MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Ic855b01d8b812e4604b266427c4f646cd1625b86 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/86036 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl --- vcl/inc/pdf/Matrix3.hxx | 54 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 vcl/inc/pdf/Matrix3.hxx (limited to 'vcl/inc/pdf') diff --git a/vcl/inc/pdf/Matrix3.hxx b/vcl/inc/pdf/Matrix3.hxx new file mode 100644 index 000000000000..c36332015c13 --- /dev/null +++ b/vcl/inc/pdf/Matrix3.hxx @@ -0,0 +1,54 @@ +/* -*- 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/. + * + */ + +#ifndef INCLUDED_VCL_INC_PDF_MATRIX3_HXX +#define INCLUDED_VCL_INC_PDF_MATRIX3_HXX + +#include +#include + +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; +}; +} + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit