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core/DesktopEditor/graphics/Matrix.cpp
Alexander Trofimov 76ee07f61c [copyright] Update copyright header
Co-authored-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
Co-committed-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
2026-05-14 08:23:56 +00:00

329 lines
9.3 KiB
C++

/*
* Copyright (C) Ascensio System SIA, 2009-2026
*
* This program is a free software product. You can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License (AGPL)
* version 3 as published by the Free Software Foundation, together with the
* additional terms provided in the LICENSE file.
*
* This program is distributed WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
* details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
*
* You can contact Ascensio System SIA by email at info@onlyoffice.com
* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
* LV-1050, Latvia, European Union.
*
* The interactive user interfaces in modified versions of the Program
* are required to display Appropriate Legal Notices in accordance with
* Section 5 of the GNU AGPL version 3.
*
* No trademark rights are granted under this License.
*
* All non-code elements of the Product, including illustrations,
* icon sets, and technical writing content, are licensed under the
* Creative Commons Attribution-ShareAlike 4.0 International License:
* https://creativecommons.org/licenses/by-sa/4.0/legalcode
*
* This license applies only to such non-code elements and does not
* modify or replace the licensing terms applicable to the Program's
* source code, which remains licensed under the GNU Affero General
* Public License v3.
*
* SPDX-License-Identifier: AGPL-3.0-only
*/
#include "Matrix_private.h"
namespace Aggplus
{
CMatrix::CMatrix(double m11, double m12, double m21, double m22, double dx, double dy)
{
m_internal = new CMatrix_private();
m_internal->m_agg_mtx.sx = m11;
m_internal->m_agg_mtx.shy = m12;
m_internal->m_agg_mtx.shx = m21;
m_internal->m_agg_mtx.sy = m22;
m_internal->m_agg_mtx.tx = dx;
m_internal->m_agg_mtx.ty = dy;
}
CMatrix::CMatrix(const CMatrix& oSrc)
{
m_internal = new CMatrix_private();
m_internal->m_agg_mtx = oSrc.m_internal->m_agg_mtx;
}
CMatrix::CMatrix()
{
m_internal = new CMatrix_private();
}
CMatrix::~CMatrix()
{
RELEASEOBJECT(m_internal);
}
void CMatrix::Translate(double offsetX, double offsetY, MatrixOrder order)
{
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_translation(offsetX, offsetY));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_translation(offsetX, offsetY));
}
}
void CMatrix::Scale(double scaleX, double scaleY, MatrixOrder order)
{
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_scaling(scaleX, scaleY));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_scaling(scaleX, scaleY));
}
}
void CMatrix::Shear(double shearX, double shearY, MatrixOrder order)
{
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_skewing(shearX, shearY));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_skewing(shearX, shearY));
}
}
void CMatrix::TransformVectors(PointF* pts, int count) const
{
// Store matrix to an array [6] of double
double M[6]; m_internal->m_agg_mtx.store_to(M);
for (int i = 0; i < count; ++i)
{
double x = pts[i].X;
double y = pts[i].Y;
m_internal->m_agg_mtx.transform(&x, &y);
pts[i].X = (float)(x-M[4]);
pts[i].Y = (float)(y-M[5]);
}
}
void CMatrix::TransformPoints(PointF* pts, int count) const
{
for (int i = 0; i < count; ++i)
{
double x = pts[i].X;
double y = pts[i].Y;
m_internal->m_agg_mtx.transform(&x, &y);
pts[i].X = (float)x;
pts[i].Y = (float)y;
}
}
void CMatrix::TransformPoint(double& x, double& y) const
{
m_internal->m_agg_mtx.transform(&x, &y);
}
void CMatrix::Rotate(double angle, MatrixOrder order)
{
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
}
void CMatrix::RotateAt(double angle, const PointF &center, MatrixOrder order)
{
Translate(-center.X, -center.Y, order);
if(order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
Translate(center.X, center.Y, order);
return;
}
void CMatrix::RotateAt(double angle, double x, double y, MatrixOrder order)
{
Translate(-x, -y, order);
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
else
{
m_internal->m_agg_mtx.multiply(agg::trans_affine_rotation(agg::deg2rad(angle)));
}
Translate(x, y, order);
}
void CMatrix::Multiply(const CMatrix* matrix, MatrixOrder order)
{
if (order == MatrixOrderPrepend)
{
m_internal->m_agg_mtx.premultiply(matrix->m_internal->m_agg_mtx);
}
else
{
m_internal->m_agg_mtx.multiply(matrix->m_internal->m_agg_mtx);
}
}
double CMatrix::OffsetX() const
{
return m_internal->m_agg_mtx.tx;
}
double CMatrix::OffsetY() const
{
return m_internal->m_agg_mtx.ty;
}
double CMatrix::sx() const
{
return m_internal->m_agg_mtx.sx;
}
double CMatrix::sy() const
{
return m_internal->m_agg_mtx.sy;
}
double CMatrix::shx() const
{
return m_internal->m_agg_mtx.shx;
}
double CMatrix::shy() const
{
return m_internal->m_agg_mtx.shy;
}
double CMatrix::tx() const
{
return m_internal->m_agg_mtx.tx;
}
double CMatrix::ty() const
{
return m_internal->m_agg_mtx.ty;
}
double CMatrix::rotation()
{
return m_internal->m_agg_mtx.rotation();
}
void CMatrix::SetElements(const double& sx, const double& shy, const double& shx, const double& sy, const double& tx, const double& ty)
{
m_internal->m_agg_mtx.sx = sx;
m_internal->m_agg_mtx.shy = shy;
m_internal->m_agg_mtx.shx = shx;
m_internal->m_agg_mtx.sy = sy;
m_internal->m_agg_mtx.tx = tx;
m_internal->m_agg_mtx.ty = ty;
}
Status CMatrix::GetElements(REAL* m) const
{
double M[6]; m_internal->m_agg_mtx.store_to(M);
m[0]=(REAL)M[0];
m[1]=(REAL)M[1];
m[2]=(REAL)M[2];
m[3]=(REAL)M[3];
m[4]=(REAL)M[4];
m[5]=(REAL)M[5];
return Ok;
}
Status CMatrix::GetElements(double* m) const
{
m_internal->m_agg_mtx.store_to(m);
return Ok;
}
void CMatrix::Reset()
{
m_internal->m_agg_mtx.reset();
}
double CMatrix::Determinant() const
{
return m_internal->m_agg_mtx.determinant();
}
const CMatrix& CMatrix::operator=(const CMatrix& Src)
{
m_internal->m_agg_mtx = Src.m_internal->m_agg_mtx;
return *this;
}
Status CMatrix::Invert()
{
double d = m_internal->m_agg_mtx.determinant();
if (0.0001 >= fabs(d))
return InvalidParameter;
m_internal->m_agg_mtx.invert();
return Ok;
}
//Temp
//Used in X_BrushLinearGradient constructor
double CMatrix::z_Rotation() const
{
return agg::rad2deg(m_internal->m_agg_mtx.rotation());
}
void CMatrix::TransformPoints( PointF* dst, const PointF* src, int count ) const
{
agg::trans_affine& m = m_internal->m_agg_mtx;
for(int i = 0; i < count; ++i)
{
double x = src[i].X * m.sx + src[i].Y * m.shx + m.tx;
double y = src[i].Y * m.sy + src[i].X * m.shy + m.ty;
dst[i].X = (float)x;
dst[i].Y = (float)y;
}
}
bool CMatrix::IsIdentity(const double& eps) const
{
return m_internal->m_agg_mtx.is_identity(eps);
}
bool CMatrix::IsIdentity2(const double& eps) const
{
agg::trans_affine& m = m_internal->m_agg_mtx;
return agg::is_equal_eps(m.sx, 1.0, eps) &&
agg::is_equal_eps(m.shy, 0.0, eps) &&
agg::is_equal_eps(m.shx, 0.0, eps) &&
agg::is_equal_eps(m.sy, 1.0, eps);
}
bool CMatrix::IsEqual(const CMatrix* mm1, const CMatrix* mm2, const double& eps, bool bIsOnlyMain)
{
agg::trans_affine& m1 = mm1->m_internal->m_agg_mtx;
agg::trans_affine& m2 = mm2->m_internal->m_agg_mtx;
bool bMain = fabs(m1.sx - m2.sx) < eps &&
fabs(m1.sy - m2.sy) < eps &&
fabs(m1.shx - m2.shx) < eps &&
fabs(m1.shy - m2.shy) < eps;
if (!bMain || bIsOnlyMain)
return bMain;
return fabs(m1.tx - m2.tx) < eps && fabs(m1.ty - m2.ty) < eps;
}
}