1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 // MARKER(update_precomp.py): autogen include statement, do not remove 25 #include "precompiled_svx.hxx" 26 #include <svx/e3dsceneupdater.hxx> 27 #include <drawinglayer/geometry/viewinformation3d.hxx> 28 #include <svx/obj3d.hxx> 29 #include <svx/scene3d.hxx> 30 #include <svx/sdr/contact/viewcontactofe3dscene.hxx> 31 32 ////////////////////////////////////////////////////////////////////////////// 33 34 E3DModifySceneSnapRectUpdater::E3DModifySceneSnapRectUpdater(const SdrObject* pObject) 35 : mpScene(0), 36 mpViewInformation3D(0) 37 { 38 // Secure old 3D transformation stack before modification 39 if(pObject) 40 { 41 const E3dObject* pE3dObject = dynamic_cast< const E3dObject* >(pObject); 42 43 if(pE3dObject) 44 { 45 mpScene = pE3dObject->GetScene(); 46 47 if(mpScene && mpScene->GetScene() == mpScene) 48 { 49 // if there is a scene and it's the outmost scene, get current 3D range 50 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact()); 51 const basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D()); 52 53 if(aAllContentRange.isEmpty()) 54 { 55 // no content, nothing to do 56 mpScene = 0; 57 } 58 else 59 { 60 // secure current 3D transformation stack 61 mpViewInformation3D = new drawinglayer::geometry::ViewInformation3D(rVCScene.getViewInformation3D(aAllContentRange)); 62 } 63 } 64 } 65 } 66 } 67 68 E3DModifySceneSnapRectUpdater::~E3DModifySceneSnapRectUpdater() 69 { 70 if(mpScene && mpViewInformation3D) 71 { 72 // after changing parts of the scene, use the secured last 3d transformation stack and the new content 73 // range to calculate a new, eventually expanded or shrunk, 2D geometry for the scene and apply it. 74 // Get new content range 75 const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact()); 76 basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D()); 77 78 // only change when there is still content; else let scene stay at old SnapRect 79 if(!aAllContentRange.isEmpty()) 80 { 81 // check if object transform of scene has changed 82 if(mpViewInformation3D->getObjectTransformation() != mpScene->GetTransform()) 83 { 84 // If Yes, it needs to be updated since it's - for historical reasons - 85 // part of the basic 3d transformation stack of the scene 86 drawinglayer::geometry::ViewInformation3D* pNew = new drawinglayer::geometry::ViewInformation3D( 87 mpScene->GetTransform(), // replace object transformation with new local transform 88 mpViewInformation3D->getOrientation(), 89 mpViewInformation3D->getProjection(), 90 mpViewInformation3D->getDeviceToView(), 91 mpViewInformation3D->getViewTime(), 92 mpViewInformation3D->getExtendedInformationSequence()); 93 delete mpViewInformation3D; 94 mpViewInformation3D = pNew; 95 } 96 97 // transform content range to scene-relative coordinates using old 3d transformation stack 98 aAllContentRange.transform(mpViewInformation3D->getObjectToView()); 99 100 // build 2d relative content range 101 basegfx::B2DRange aSnapRange( 102 aAllContentRange.getMinX(), aAllContentRange.getMinY(), 103 aAllContentRange.getMaxX(), aAllContentRange.getMaxY()); 104 105 // transform to 2D world coordiantes using scene's 2D transformation 106 aSnapRange.transform(rVCScene.getObjectTransformation()); 107 108 // snap to (old) integer 109 const Rectangle aNewSnapRect( 110 sal_Int32(floor(aSnapRange.getMinX())), sal_Int32(floor(aSnapRange.getMinY())), 111 sal_Int32(ceil(aSnapRange.getMaxX())), sal_Int32(ceil(aSnapRange.getMaxY()))); 112 113 // set as new SnapRect and invalidate bound volume 114 if(mpScene->GetSnapRect() != aNewSnapRect) 115 { 116 mpScene->SetSnapRect(aNewSnapRect); 117 mpScene->InvalidateBoundVolume(); 118 } 119 } 120 } 121 122 delete mpViewInformation3D; 123 } 124 125 ////////////////////////////////////////////////////////////////////////////// 126 // eof 127