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/*
* 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 :
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