include/svx/sdr/contact/viewobjectcontact.hxx

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