a6cf6ac1f6
Change-Id: I0cbdb2ee46600559d9a37f09b574d484e72a0e0d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/142133 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
109 lines
4.4 KiB
C++
109 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <svx/e3dsceneupdater.hxx>
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#include <drawinglayer/geometry/viewinformation3d.hxx>
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#include <svx/obj3d.hxx>
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#include <svx/scene3d.hxx>
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#include <svx/sdr/contact/viewcontactofe3dscene.hxx>
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E3DModifySceneSnapRectUpdater::E3DModifySceneSnapRectUpdater(const SdrObject* pObject)
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: mpScene(nullptr)
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{
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// Secure old 3D transformation stack before modification
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const E3dObject* pE3dObject = DynCastE3dObject(pObject);
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if(!pE3dObject)
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return;
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mpScene = pE3dObject->getRootE3dSceneFromE3dObject();
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if(nullptr == mpScene || mpScene->getRootE3dSceneFromE3dObject() != mpScene)
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return;
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// if there is a scene and it's the outmost scene, get current 3D range
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const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact());
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const basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D());
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if(aAllContentRange.isEmpty())
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{
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// no content, nothing to do
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mpScene = nullptr;
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}
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else
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{
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// secure current 3D transformation stack
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mpViewInformation3D = rVCScene.getViewInformation3D(aAllContentRange);
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}
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}
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E3DModifySceneSnapRectUpdater::~E3DModifySceneSnapRectUpdater()
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{
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if(!(mpScene && mpViewInformation3D))
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return;
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// after changing parts of the scene, use the secured last 3d transformation stack and the new content
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// range to calculate a new, eventually expanded or shrunk, 2D geometry for the scene and apply it.
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// Get new content range
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const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact());
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basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D());
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// only change when there is still content; else let scene stay at old SnapRect
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if(aAllContentRange.isEmpty())
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return;
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// check if object transform of scene has changed
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if(mpViewInformation3D->getObjectTransformation() != mpScene->GetTransform())
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{
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// If Yes, it needs to be updated since it's - for historical reasons -
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// part of the basic 3d transformation stack of the scene
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mpViewInformation3D = drawinglayer::geometry::ViewInformation3D(
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mpScene->GetTransform(), // replace object transformation with new local transform
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mpViewInformation3D->getOrientation(),
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mpViewInformation3D->getProjection(),
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mpViewInformation3D->getDeviceToView(),
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mpViewInformation3D->getViewTime(),
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mpViewInformation3D->getExtendedInformationSequence());
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}
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// transform content range to scene-relative coordinates using old 3d transformation stack
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aAllContentRange.transform(mpViewInformation3D->getObjectToView());
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// build 2d relative content range
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basegfx::B2DRange aSnapRange(
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aAllContentRange.getMinX(), aAllContentRange.getMinY(),
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aAllContentRange.getMaxX(), aAllContentRange.getMaxY());
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// transform to 2D world coordinates using scene's 2D transformation
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aSnapRange.transform(rVCScene.getObjectTransformation());
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// snap to (old) integer
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const tools::Rectangle aNewSnapRect(
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sal_Int32(floor(aSnapRange.getMinX())), sal_Int32(floor(aSnapRange.getMinY())),
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sal_Int32(ceil(aSnapRange.getMaxX())), sal_Int32(ceil(aSnapRange.getMaxY())));
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// set as new SnapRect and invalidate bound volume
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if(mpScene->GetSnapRect() != aNewSnapRect)
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{
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mpScene->SetSnapRect(aNewSnapRect);
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mpScene->InvalidateBoundVolume();
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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