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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:51:28 +0000
commit940b4d1848e8c70ab7642901a68594e8016caffc (patch)
treeeb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /vcl/inc/pdf/Matrix3.hxx
parentInitial commit. (diff)
downloadlibreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz
libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
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.hxx54
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diff --git a/vcl/inc/pdf/Matrix3.hxx b/vcl/inc/pdf/Matrix3.hxx
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+/* -*- 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 <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;
+};
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */