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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 _SDR_CONTACT_VIEWOBJECTCONTACT_HXX
21 : #define _SDR_CONTACT_VIEWOBJECTCONTACT_HXX
22 :
23 : #include <sal/types.h>
24 :
25 : #include <vector>
26 : #include <tools/gen.hxx>
27 : #include "svx/svxdllapi.h"
28 : #include <drawinglayer/primitive2d/baseprimitive2d.hxx>
29 :
30 : //////////////////////////////////////////////////////////////////////////////
31 : // predeclarations
32 :
33 : class Region;
34 :
35 : namespace sdr { namespace contact {
36 : class DisplayInfo;
37 : class ObjectContact;
38 : class ViewContact;
39 : class ViewObjectContactRedirector;
40 : }}
41 :
42 : namespace sdr { namespace animation {
43 : class PrimitiveAnimation;
44 : }}
45 :
46 : //////////////////////////////////////////////////////////////////////////////
47 :
48 : namespace sdr
49 : {
50 : namespace contact
51 : {
52 : class SVX_DLLPUBLIC ViewObjectContact
53 : {
54 : private:
55 : // must-exist and constant contacts
56 : ObjectContact& mrObjectContact;
57 : ViewContact& mrViewContact;
58 :
59 : // This range defines the object's BoundRect
60 : basegfx::B2DRange maObjectRange;
61 :
62 : // PrimitiveSequence of the ViewContact. This contains all necessary information
63 : // for the graphical visualisation and needs to be supported by all VCs which
64 : // can be visualized.
65 : drawinglayer::primitive2d::Primitive2DSequence mxPrimitive2DSequence;
66 :
67 : // the PrimitiveAnimation if Primitive2DSequence contains animations
68 : sdr::animation::PrimitiveAnimation* mpPrimitiveAnimation;
69 :
70 : // bitfield
71 : // This bool gets set when the object gets invalidated by ActionChanged() and
72 : // can be used from the OC to late-invalidates
73 : unsigned mbLazyInvalidate : 1;
74 :
75 : protected:
76 : // make redirector a protected friend, it needs to call createPrimitives as default action
77 : friend class ViewObjectContactRedirector;
78 :
79 : // Called from getPrimitive2DSequence() when vector has changed. Evaluate object animation
80 : // and setup accordingly
81 : void checkForPrimitive2DAnimations();
82 :
83 : // This method is responsible for creating the graphical visualisation data which is
84 : // stored/cached in the local primitive. Default gets view-independent Primitive
85 : // from the ViewContact using ViewContact::getViewIndependentPrimitive2DSequence(), takes care of
86 : // visibility, handles glue and ghosted.
87 : // This method will not handle included hierarchies and not check geometric visibility.
88 : virtual drawinglayer::primitive2d::Primitive2DSequence createPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const;
89 :
90 : // method for flushing Primitive2DSequence for VOC implementations
91 : void flushPrimitive2DSequence() { mxPrimitive2DSequence.realloc(0); }
92 :
93 : public:
94 : // basic constructor.
95 : ViewObjectContact(ObjectContact& rObjectContact, ViewContact& rViewContact);
96 : virtual ~ViewObjectContact();
97 :
98 : // access to ObjectContact
99 0 : ObjectContact& GetObjectContact() const { return mrObjectContact; }
100 :
101 : // access to ViewContact
102 244 : ViewContact& GetViewContact() const { return mrViewContact; }
103 :
104 : // get the oebject's size range
105 : const basegfx::B2DRange& getObjectRange() const;
106 :
107 : // A ViewObjectContact was deleted and shall be forgotten.
108 : void RemoveViewObjectContact(ViewObjectContact& rVOContact);
109 :
110 : // React on changes of the object of this ViewContact
111 : virtual void ActionChanged();
112 :
113 : // LazyInvalidate handling
114 : void triggerLazyInvalidate();
115 :
116 : // Check if this primitive is animated in any OC (View) which means it has
117 : // generated a PrimitiveAnimation
118 : bool isAnimated() const { return (0 != mpPrimitiveAnimation); }
119 :
120 : // Take some action when new objects are inserted
121 : virtual void ActionChildInserted(ViewContact& rChild);
122 :
123 : // access to the local primitive. This will ensure that the local primitive is
124 : // current in comparing the local one with a fresh created incarnation
125 : // This method will not handle included hierarchies and not check visibility.
126 : drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequence(const DisplayInfo& rDisplayInfo) const;
127 :
128 : // test this VOC for visibility concerning model-view stuff like e.g. Layer
129 : virtual bool isPrimitiveVisible(const DisplayInfo& rDisplayInfo) const;
130 :
131 : // test this VOC for ghosted mode
132 : virtual bool isPrimitiveGhosted(const DisplayInfo& rDisplayInfo) const;
133 :
134 : // process this primitive: Eventually also recursively travel an existing hierarchy,
135 : // e.g. for group objects, scenes or pages. This method will test geometrical visibility.
136 : virtual drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequenceHierarchy(DisplayInfo& rDisplayInfo) const;
137 :
138 : // just process the sub-hierarchy, used as tooling from getPrimitive2DSequenceHierarchy
139 : drawinglayer::primitive2d::Primitive2DSequence getPrimitive2DSequenceSubHierarchy(DisplayInfo& rDisplayInfo) const;
140 : };
141 : } // end of namespace contact
142 : } // end of namespace sdr
143 :
144 : //////////////////////////////////////////////////////////////////////////////
145 :
146 : #endif //_SDR_CONTACT_VIEWOBJECTCONTACT_HXX
147 :
148 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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