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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 : #ifndef INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
21 : #define INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
22 :
23 : #include <sal/types.h>
24 :
25 : #include <vector>
26 : #include <svx/svxdllapi.h>
27 : #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
28 :
29 :
30 : // predeclarations
31 :
32 : class Region;
33 :
34 : namespace sdr { namespace contact {
35 : class DisplayInfo;
36 : class ObjectContact;
37 : class ViewContact;
38 : class ViewObjectContactRedirector;
39 : }}
40 :
41 : namespace sdr { namespace animation {
42 : class PrimitiveAnimation;
43 : }}
44 :
45 :
46 :
47 : namespace sdr
48 : {
49 : namespace contact
50 : {
51 : class SVX_DLLPUBLIC ViewObjectContact
52 : {
53 : private:
54 : // must-exist and constant contacts
55 : ObjectContact& mrObjectContact;
56 : ViewContact& mrViewContact;
57 :
58 : // This range defines the object's BoundRect
59 : basegfx::B2DRange maObjectRange;
60 :
61 : // PrimitiveSequence of the ViewContact. This contains all necessary information
62 : // for the graphical visualisation and needs to be supported by all VCs which
63 : // can be visualized.
64 : drawinglayer::primitive2d::Primitive2DSequence mxPrimitive2DSequence;
65 :
66 : // the PrimitiveAnimation if Primitive2DSequence contains animations
67 : sdr::animation::PrimitiveAnimation* mpPrimitiveAnimation;
68 :
69 : // bitfield
70 : // This bool gets set when the object gets invalidated by ActionChanged() and
71 : // can be used from the OC to late-invalidates
72 : bool mbLazyInvalidate : 1;
73 :
74 : protected:
75 : // make redirector a protected friend, it needs to call createPrimitives as default action
76 : friend class ViewObjectContactRedirector;
77 :
78 : // Called from getPrimitive2DSequence() when vector has changed. Evaluate object animation
79 : // and setup accordingly
80 : void checkForPrimitive2DAnimations();
81 :
82 : // This method is responsible for creating the graphical visualisation data which is
83 : // stored/cached in the local primitive. Default gets view-independent Primitive
84 : // from the ViewContact using ViewContact::getViewIndependentPrimitive2DSequence(), takes care of
85 : // visibility, handles glue and ghosted.
86 : // This method will not handle included hierarchies and not check geometric visibility.
87 : virtual drawinglayer::primitive2d::Primitive2DSequence createPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const;
88 :
89 : // method for flushing Primitive2DSequence for VOC implementations
90 0 : void flushPrimitive2DSequence() { mxPrimitive2DSequence.realloc(0); }
91 :
92 : public:
93 : // basic constructor.
94 : ViewObjectContact(ObjectContact& rObjectContact, ViewContact& rViewContact);
95 : virtual ~ViewObjectContact();
96 :
97 : // access to ObjectContact
98 0 : ObjectContact& GetObjectContact() const { return mrObjectContact; }
99 :
100 : // access to ViewContact
101 0 : ViewContact& GetViewContact() const { return mrViewContact; }
102 :
103 : // get the oebject's size range
104 : const basegfx::B2DRange& getObjectRange() const;
105 :
106 : // A ViewObjectContact was deleted and shall be forgotten.
107 : void RemoveViewObjectContact(ViewObjectContact& rVOContact);
108 :
109 : // React on changes of the object of this ViewContact
110 : virtual void ActionChanged();
111 :
112 : // LazyInvalidate handling
113 : void triggerLazyInvalidate();
114 :
115 : // Check if this primitive is animated in any OC (View) which means it has
116 : // generated a PrimitiveAnimation
117 0 : bool isAnimated() const { return (0 != mpPrimitiveAnimation); }
118 :
119 : // Take some action when new objects are inserted
120 : virtual void ActionChildInserted(ViewContact& rChild);
121 :
122 : // access to the local primitive. This will ensure that the local primitive is
123 : // current in comparing the local one with a fresh created incarnation
124 : // This method will not handle included hierarchies and not check visibility.
125 : drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const;
126 :
127 : // test this VOC for visibility concerning model-view stuff like e.g. Layer
128 : virtual bool isPrimitiveVisible(const DisplayInfo& rDisplayInfo) const;
129 :
130 : // test this VOC for ghosted mode
131 : virtual bool isPrimitiveGhosted(const DisplayInfo& rDisplayInfo) const;
132 :
133 : // process this primitive: Eventually also recursively travel an existing hierarchy,
134 : // e.g. for group objects, scenes or pages. This method will test geometrical visibility.
135 : virtual drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequenceHierarchy(DisplayInfo& rDisplayInfo) const;
136 :
137 : // just process the sub-hierarchy, used as tooling from getPrimitive2DSequenceHierarchy
138 : drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequenceSubHierarchy(DisplayInfo& rDisplayInfo) const;
139 : };
140 : } // end of namespace contact
141 : } // end of namespace sdr
142 :
143 :
144 :
145 : #endif // INCLUDED_SVX_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
146 :
147 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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