/* -*- 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/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
namespace drawinglayer::primitive2d
{ /** CropPrimitive2D class
Caution: Due to old constraints (old core definitions) the crop distances describe how the uncropped content is defined relative to the current object size. This means that maTransformation describes the current object size (the part of the object visible with the crop applied). To get the original size and orientation of the uncropped content it is necessary to calc back from the current situation (maTransformation) using the crop values to get to the uncropped original content.
Thus a transformation has to be calculated which will be applied to the already existing content to get it to the uncropped state and then this is masked with the current state (mask polygon created from unit polygon and maTransformation).
At least in this primitive the units of the crop values are already in the local coordinate system; in the core these distances are defined relative to the object content size (PrefMapMode and PrefSize of the content)...
Of course this is a primitive, so feel free to just ignore all that stuff and use the automatically generated decomposition. Sigh.
*/ class CropPrimitive2D final : public GroupPrimitive2D
{ private: // the transformation already applied to the child geometry
basegfx::B2DHomMatrix maTransformation;
// the crop offsets relative to the range of the unrotated content double mfCropLeft; double mfCropTop; double mfCropRight; double mfCropBottom;
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