src/sp-tref-reference.cpp

   1 /*
   2  * The reference corresponding to href of <tref> element.
   3  *
   4  * Copyright (C) 2007 Gail Banaszkiewicz
   5  *
   6  * This file was created based on sp-use-reference.cpp
   7  *
   8  * Released under GNU GPL, read the file 'COPYING' for more information.
   9  */
  10
  11 //#include "enums.h"
  12 #include "sp-tref-reference.h"
  13
  14 #include "sp-text.h"
  15 #include "sp-tref.h"
  16 #include "sp-tspan.h"
  17
  18
  19
  20 bool SPTRefReference::_acceptObject(SPObject * const obj) const
  21 {
  22     SPObject *owner = getOwner();
  23     if (SP_IS_TREF(owner))
  24         return sp_tref_reference_allowed(SP_TREF(getOwner()), obj);
  25     else
  26         return false;
  27 }
  28
  29
  30 void SPTRefReference::updateObserver()
  31 {
  32     SPObject *referred = getObject();
  33
  34     if (referred) {
  35         if (subtreeObserved) {
  36             subtreeObserved->removeObserver(*this);
  37             delete subtreeObserved;
  38         }
  39
  40         subtreeObserved = new Inkscape::XML::Subtree(*SP_OBJECT_REPR(referred));
  41         subtreeObserved->addObserver(*this);
  42     }
  43 }
  44
  45
  46 void SPTRefReference::notifyChildAdded(Inkscape::XML::Node &/*node*/, Inkscape::XML::Node &/*child*/,
  47                                        Inkscape::XML::Node */*prev*/)
  48 {
  49     SPObject *owner = getOwner();
  50
  51     if (owner && SP_IS_TREF(owner)) {
  52         sp_tref_update_text(SP_TREF(owner));
  53     }
  54 }
  55
  56
  57 void SPTRefReference::notifyChildRemoved(Inkscape::XML::Node &/*node*/, Inkscape::XML::Node &/*child*/,
  58                                          Inkscape::XML::Node */*prev*/)
  59 {
  60     SPObject *owner = getOwner();
  61
  62     if (owner && SP_IS_TREF(owner)) {
  63         sp_tref_update_text(SP_TREF(owner));
  64     }
  65 }
  66
  67
  68 void SPTRefReference::notifyChildOrderChanged(Inkscape::XML::Node &/*node*/, Inkscape::XML::Node &/*child*/,
  69                                               Inkscape::XML::Node */*old_prev*/, Inkscape::XML::Node */*new_prev*/)
  70 {
  71     SPObject *owner = getOwner();
  72
  73     if (owner && SP_IS_TREF(owner)) {
  74         sp_tref_update_text(SP_TREF(owner));
  75     }
  76 }
  77
  78
  79 void SPTRefReference::notifyContentChanged(Inkscape::XML::Node &/*node*/,
  80                                            Inkscape::Util::ptr_shared<char> /*old_content*/,
  81                                            Inkscape::Util::ptr_shared<char> /*new_content*/)
  82 {
  83     SPObject *owner = getOwner();
  84
  85     if (owner && SP_IS_TREF(owner)) {
  86         sp_tref_update_text(SP_TREF(owner));
  87     }
  88 }
  89
  90
  91 void SPTRefReference::notifyAttributeChanged(Inkscape::XML::Node &/*node*/, GQuark /*name*/,
  92                                              Inkscape::Util::ptr_shared<char> /*old_value*/,
  93                                              Inkscape::Util::ptr_shared<char> /*new_value*/)
  94 {
  95     // Do nothing - tref only cares about textual content
  96 }
  97
  98
  99 /*
 100   Local Variables:
 101   mode:c++
 102   c-file-style:"stroustrup"
 103   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 104   indent-tabs-mode:nil
 105   fill-column:99
 106   End:
 107 */
 108 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :