fabb63ff5f
Change-Id: I8fbe02547d5045cfdb5021720b10ddd10106209a Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155750 Tested-by: Jenkins Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/* -*- 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 <basegfx/point/b2dpoint.hxx>
|
|
#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;
|
|
basegfx::B2DPoint transform(const basegfx::B2DPoint& rPoint) const;
|
|
};
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|