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Diffstat (limited to 'src/persp3d-reference.cpp')
| -rw-r--r-- | src/persp3d-reference.cpp | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/persp3d-reference.cpp b/src/persp3d-reference.cpp new file mode 100644 index 000000000..cbd855c31 --- /dev/null +++ b/src/persp3d-reference.cpp @@ -0,0 +1,175 @@ +/* + * The reference corresponding to the inkscape:perspectiveID attribute + * + * Copyright (C) 2007 Johan Engelen + * Copyright (C) 2007 Maximilian Albert + * + * Released under GNU GPL, read the file 'COPYING' for more information. + */ + +#include "persp3d-reference.h" +#include "persp3d.h" +#include "uri.h" + +// for testing: +#include "xml/repr.h" +#include "box3d.h" + +static void persp3dreference_href_changed(SPObject *old_ref, SPObject *ref, Persp3DReference *persp3dref); +static void persp3dreference_delete_self(SPObject *deleted, Persp3DReference *persp3dref); +static void persp3dreference_source_modified(SPObject *iSource, guint flags, Persp3DReference *persp3dref); + +Persp3DReference::Persp3DReference(SPObject* i_owner) : URIReference(i_owner) +{ + owner=i_owner; + /** + if (owner) { + g_print ("Owner of newly created Persp3DReference is box #%d ", SP_BOX3D(owner)->my_counter); + g_print ("(no ID yet because we are calling from box3d_init()...\n"); + } + **/ + persp_href = NULL; + persp_repr = NULL; + persp = NULL; + _changed_connection = changedSignal().connect(sigc::bind(sigc::ptr_fun(persp3dreference_href_changed), this)); // listening to myself, this should be virtual instead +} + +Persp3DReference::~Persp3DReference(void) +{ + _changed_connection.disconnect(); // to do before unlinking + + quit_listening(); + unlink(); +} + +bool +Persp3DReference::_acceptObject(SPObject *obj) const +{ + return SP_IS_PERSP3D(obj); + /* effic: Don't bother making this an inline function: _acceptObject is a virtual function, + typically called from a context where the runtime type is not known at compile time. */ +} + +/*** +void +Persp3DReference::link(char *to) +{ + if ( to == NULL ) { + quit_listening(); + unlink(); + } else { + if ( !persp_href || ( strcmp(to, persp_href) != 0 ) ) { + g_free(persp_href); + persp_href = g_strdup(to); + try { + attach(Inkscape::URI(to)); + } catch (Inkscape::BadURIException &e) { + // TODO: Proper error handling as per + // http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing. + // + g_warning("%s", e.what()); + detach(); + } + } + } +} +***/ + +void +Persp3DReference::unlink(void) +{ + g_free(persp_href); + persp_href = NULL; + detach(); +} + +void +Persp3DReference::start_listening(Persp3D* to) +{ + if ( to == NULL ) { + return; + } + persp = to; + persp_repr = SP_OBJECT_REPR(to); + _delete_connection = to->connectDelete(sigc::bind(sigc::ptr_fun(&persp3dreference_delete_self), this)); + _modified_connection = to->connectModified(sigc::bind<2>(sigc::ptr_fun(&persp3dreference_source_modified), this)); + //box3d_start_listening_to_persp_change (SP_BOX3D(this->owner), to); +} + +void +Persp3DReference::quit_listening(void) +{ + if ( persp == NULL ) { + return; + } + _modified_connection.disconnect(); + _delete_connection.disconnect(); + persp_repr = NULL; + persp = NULL; +} + +static void +persp3dreference_href_changed(SPObject */*old_ref*/, SPObject */*ref*/, Persp3DReference *persp3dref) +{ + //g_print ("persp3dreference_href_changed:\n"); + persp3dref->quit_listening(); + /** + if (SP_IS_PERSP3D(persp3dref->getObject())){ + g_print ("referenced object is a perspective\n"); + } else { + g_print ("referenced object is NOT a perspective!!!!\n"); + } + **/ + Persp3D *refobj = SP_PERSP3D(persp3dref->getObject()); + if ( refobj ) { + persp3dref->start_listening(refobj); + //g_print (" start listening to %s\n", SP_OBJECT_REPR(refobj)->attribute("id")); + } + + /** + if (persp3dref->owner) { + g_print ("Requesting display update of owner box #%d (%s) from persp3dreference_href_changed()\n", + SP_BOX3D(persp3dref->owner)->my_counter, + SP_OBJECT_REPR(persp3dref->owner)->attribute("id")); + } + **/ + persp3dref->owner->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); +} + +static void +persp3dreference_delete_self(SPObject */*deleted*/, Persp3DReference *persp3dref) +{ + g_print ("persp3dreference_delete_self; FIXME: Can we leave this to the parent URIReference?\n"); + if (persp3dref->owner) { + g_print ("Deleting box #%d (%s) (?) from Persp3DReference\n", + SP_BOX3D(persp3dref->owner)->my_counter, + SP_OBJECT_REPR(persp3dref->owner)->attribute("id")); + } + persp3dref->owner->deleteObject(); +} + +static void +persp3dreference_source_modified(SPObject *iSource, guint flags, Persp3DReference *persp3dref) +{ + /** + g_print ("persp3dreference_source_modified; FIXME: Can we leave this to the parent URIReference?\n"); + if (persp3dref->owner) { + g_print ("Requesting display update of box #%d (%s) from persp3dreference_source_modified\n", + SP_BOX3D(persp3dref->owner)->my_counter, + SP_OBJECT_REPR(persp3dref->owner)->attribute("id")); + } + **/ + persp3dref->owner->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG); +} + + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : |