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Diffstat (limited to 'basegfx/source/tools/tools.cxx')
| -rw-r--r-- | basegfx/source/tools/tools.cxx | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/basegfx/source/tools/tools.cxx b/basegfx/source/tools/tools.cxx deleted file mode 100644 index d7bdbccbe3..0000000000 --- a/basegfx/source/tools/tools.cxx +++ /dev/null @@ -1,127 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_basegfx.hxx" - -#include "basegfx/tools/tools.hxx" -#include "basegfx/range/b2drange.hxx" - -#include <algorithm> - - -namespace basegfx -{ - namespace tools - { - namespace - { - inline double distance( const double& nX, - const double& nY, - const ::basegfx::B2DVector& rNormal, - const double& nC ) - { - return nX*rNormal.getX() + nY*rNormal.getY() - nC; - } - - void moveLineOutsideRect( ::basegfx::B2DPoint& io_rStart, - ::basegfx::B2DPoint& io_rEnd, - const ::basegfx::B2DVector& rMoveDirection, - const ::basegfx::B2DRange& rFitTarget ) - { - // calc c for normal line form equation n x - c = 0 - const double nC( rMoveDirection.scalar( io_rStart ) ); - - // calc maximum orthogonal distance for all four bound - // rect corners to the line - const double nMaxDistance( ::std::max( - 0.0, - ::std::max( - distance(rFitTarget.getMinX(), - rFitTarget.getMinY(), - rMoveDirection, - nC), - ::std::max( - distance(rFitTarget.getMinX(), - rFitTarget.getMaxY(), - rMoveDirection, - nC), - ::std::max( - distance(rFitTarget.getMaxX(), - rFitTarget.getMinY(), - rMoveDirection, - nC), - distance(rFitTarget.getMaxX(), - rFitTarget.getMaxY(), - rMoveDirection, - nC) ) ) ) ) ); - - // now move line points, such that the bound rect - // points are all either 'on' or on the negative side - // of the half-plane - io_rStart += nMaxDistance*rMoveDirection; - io_rEnd += nMaxDistance*rMoveDirection; - } - } - - void infiniteLineFromParallelogram( ::basegfx::B2DPoint& io_rLeftTop, - ::basegfx::B2DPoint& io_rLeftBottom, - ::basegfx::B2DPoint& io_rRightTop, - ::basegfx::B2DPoint& io_rRightBottom, - const ::basegfx::B2DRange& rFitTarget ) - { - // For the top and bottom border line of the - // parallelogram, we determine the distance to all four - // corner points of the bound rect (tl, tr, bl, br). When - // using the unit normal form for lines (n x - c = 0), and - // choosing n to point 'outwards' the parallelogram, then - // all bound rect corner points having positive distance - // to the line lie outside the extended gradient rect, and - // thus, the corresponding border line must be moved the - // maximum distance outwards. - - // don't use the top and bottom border line direction, and - // calculate the normal from them. Instead, use the - // vertical lines (lt - lb or rt - rb), as they more - // faithfully represent the direction of the - // to-be-generated infinite line - ::basegfx::B2DVector aDirectionVertical( io_rLeftTop - io_rLeftBottom ); - aDirectionVertical.normalize(); - - const ::basegfx::B2DVector aNormalTop( aDirectionVertical ); - const ::basegfx::B2DVector aNormalBottom( -aDirectionVertical ); - - // now extend parallelogram, such that the bound rect - // point are included - moveLineOutsideRect( io_rLeftTop, io_rRightTop, aNormalTop, rFitTarget ); - moveLineOutsideRect( io_rLeftBottom, io_rRightBottom, aNormalBottom, rFitTarget ); - } - } -} - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |