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1 : : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : : /*
3 : : * This file is part of the LibreOffice project.
4 : : *
5 : : * This Source Code Form is subject to the terms of the Mozilla Public
6 : : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : : *
9 : : * This file incorporates work covered by the following license notice:
10 : : *
11 : : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : : * contributor license agreements. See the NOTICE file distributed
13 : : * with this work for additional information regarding copyright
14 : : * ownership. The ASF licenses this file to you under the Apache
15 : : * License, Version 2.0 (the "License"); you may not use this file
16 : : * except in compliance with the License. You may obtain a copy of
17 : : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : : */
19 : :
20 : : #include <svx/e3dsceneupdater.hxx>
21 : : #include <drawinglayer/geometry/viewinformation3d.hxx>
22 : : #include <svx/obj3d.hxx>
23 : : #include <svx/scene3d.hxx>
24 : : #include <svx/sdr/contact/viewcontactofe3dscene.hxx>
25 : :
26 : : //////////////////////////////////////////////////////////////////////////////
27 : :
28 : 75 : E3DModifySceneSnapRectUpdater::E3DModifySceneSnapRectUpdater(const SdrObject* pObject)
29 : : : mpScene(0),
30 : 75 : mpViewInformation3D(0)
31 : : {
32 : : // Secure old 3D transformation stack before modification
33 [ + - ]: 75 : if(pObject)
34 : : {
35 [ - + ]: 75 : const E3dObject* pE3dObject = dynamic_cast< const E3dObject* >(pObject);
36 : :
37 [ + - ]: 75 : if(pE3dObject)
38 : : {
39 : 75 : mpScene = pE3dObject->GetScene();
40 : :
41 [ + - ][ + - ]: 75 : if(mpScene && mpScene->GetScene() == mpScene)
[ + - ]
42 : : {
43 : : // if there is a scene and it's the outmost scene, get current 3D range
44 [ + - ]: 75 : const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact());
45 [ + - ]: 75 : const basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D());
46 : :
47 [ + - ][ - + ]: 75 : if(aAllContentRange.isEmpty())
48 : : {
49 : : // no content, nothing to do
50 : 0 : mpScene = 0;
51 : : }
52 : : else
53 : : {
54 : : // secure current 3D transformation stack
55 [ + - ][ + - ]: 75 : mpViewInformation3D = new drawinglayer::geometry::ViewInformation3D(rVCScene.getViewInformation3D(aAllContentRange));
[ + - ]
56 : : }
57 : : }
58 : : }
59 : : }
60 : 75 : }
61 : :
62 : 75 : E3DModifySceneSnapRectUpdater::~E3DModifySceneSnapRectUpdater()
63 : : {
64 [ + - ][ + - ]: 75 : if(mpScene && mpViewInformation3D)
65 : : {
66 : : // after changing parts of the scene, use the secured last 3d transformation stack and the new content
67 : : // range to calculate a new, eventually expanded or shrunk, 2D geometry for the scene and apply it.
68 : : // Get new content range
69 [ + - ]: 75 : const sdr::contact::ViewContactOfE3dScene& rVCScene = static_cast< sdr::contact::ViewContactOfE3dScene& >(mpScene->GetViewContact());
70 [ + - ]: 75 : basegfx::B3DRange aAllContentRange(rVCScene.getAllContentRange3D());
71 : :
72 : : // only change when there is still content; else let scene stay at old SnapRect
73 [ + - ][ + - ]: 75 : if(!aAllContentRange.isEmpty())
74 : : {
75 : : // check if object transform of scene has changed
76 [ + - ][ + - ]: 75 : if(mpViewInformation3D->getObjectTransformation() != mpScene->GetTransform())
[ + - ][ + + ]
77 : : {
78 : : // If Yes, it needs to be updated since it's - for historical reasons -
79 : : // part of the basic 3d transformation stack of the scene
80 : : drawinglayer::geometry::ViewInformation3D* pNew = new drawinglayer::geometry::ViewInformation3D(
81 : 14 : mpScene->GetTransform(), // replace object transformation with new local transform
82 : 14 : mpViewInformation3D->getOrientation(),
83 : 14 : mpViewInformation3D->getProjection(),
84 : 14 : mpViewInformation3D->getDeviceToView(),
85 : 14 : mpViewInformation3D->getViewTime(),
86 [ + - ][ + - ]: 14 : mpViewInformation3D->getExtendedInformationSequence());
[ + - ][ + - ]
[ + - ][ + - ]
[ + - ][ + - ]
87 [ + - ][ + - ]: 14 : delete mpViewInformation3D;
88 : 14 : mpViewInformation3D = pNew;
89 : : }
90 : :
91 : : // transform content range to scene-relative coordinates using old 3d transformation stack
92 [ + - ][ + - ]: 75 : aAllContentRange.transform(mpViewInformation3D->getObjectToView());
93 : :
94 : : // build 2d relative content range
95 : : basegfx::B2DRange aSnapRange(
96 : : aAllContentRange.getMinX(), aAllContentRange.getMinY(),
97 [ + - ][ + - ]: 75 : aAllContentRange.getMaxX(), aAllContentRange.getMaxY());
[ + - ][ + - ]
[ + - ]
98 : :
99 : : // transform to 2D world coordiantes using scene's 2D transformation
100 [ + - ][ + - ]: 75 : aSnapRange.transform(rVCScene.getObjectTransformation());
101 : :
102 : : // snap to (old) integer
103 : : const Rectangle aNewSnapRect(
104 [ + - ][ + - ]: 75 : sal_Int32(floor(aSnapRange.getMinX())), sal_Int32(floor(aSnapRange.getMinY())),
105 [ + - ][ + - ]: 150 : sal_Int32(ceil(aSnapRange.getMaxX())), sal_Int32(ceil(aSnapRange.getMaxY())));
[ + - ]
106 : :
107 : : // set as new SnapRect and invalidate bound volume
108 [ + - ][ + - ]: 75 : if(mpScene->GetSnapRect() != aNewSnapRect)
[ + + ]
109 : : {
110 [ + - ]: 63 : mpScene->SetSnapRect(aNewSnapRect);
111 [ + - ]: 75 : mpScene->InvalidateBoundVolume();
112 : : }
113 : : }
114 : : }
115 : :
116 [ + - ]: 75 : delete mpViewInformation3D;
117 : 75 : }
118 : :
119 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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