/src/libreoffice/vcl/inc/pdf/Matrix3.hxx
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1 | | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ |
2 | | /* |
3 | | * This file is part of the LibreOffice project. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
6 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
7 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. |
8 | | * |
9 | | */ |
10 | | |
11 | | #pragma once |
12 | | |
13 | | #include <basegfx/point/b2dpoint.hxx> |
14 | | #include <tools/gen.hxx> |
15 | | |
16 | | namespace vcl::pdf |
17 | | { |
18 | | // matrix helper class |
19 | | // TODO: use basegfx matrix class instead or derive from it |
20 | | |
21 | | /* for sparse matrices of the form (2D linear transformations) |
22 | | * f[0] f[1] 0 |
23 | | * f[2] f[3] 0 |
24 | | * f[4] f[5] 1 |
25 | | */ |
26 | | class Matrix3 |
27 | | { |
28 | | double f[6]; |
29 | | |
30 | | void set(const double* pn) |
31 | 507k | { |
32 | 3.55M | for (int i = 0; i < 6; i++) |
33 | 3.04M | f[i] = pn[i]; |
34 | 507k | } |
35 | | |
36 | | public: |
37 | | Matrix3(); |
38 | | |
39 | | void skew(double alpha, double beta); |
40 | | void scale(double sx, double sy); |
41 | | void rotate(double angle); |
42 | | void translate(double tx, double ty); |
43 | | void invert(); |
44 | | |
45 | 315k | double get(size_t i) const { return f[i]; } |
46 | | |
47 | | Point transform(const Point& rPoint) const; |
48 | | basegfx::B2DPoint transform(const basegfx::B2DPoint& rPoint) const; |
49 | | }; |
50 | | } |
51 | | |
52 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |