1 files changed, 323 insertions, 0 deletions
diff --git a/kig/objects/object_calcer.cpp b/kig/objects/object_calcer.cpp
new file mode 100644
index 00000000..40545ed1
--- /dev/null
+++ b/kig/objects/object_calcer.cpp
@@ -0,0 +1,323 @@
+// Copyright (C)  2003  Dominique Devriese <devriese@kde.org>
+
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+// 02110-1301, USA.
+
+#include "object_calcer.h"
+
+#include "object_holder.h"
+#include "object_imp.h"
+#include "object_type.h"
+#include "../misc/coordinate.h"
+#include "common.h"
+
+#include <algorithm>
+#include <set>
+
+void ObjectTypeCalcer::calc( const KigDocument& doc )
+{
+  Args a;
+  a.reserve( mparents.size() );
+  std::transform( mparents.begin(), mparents.end(),
+                  std::back_inserter( a ), std::mem_fun( &ObjectCalcer::imp ) );
+  ObjectImp* n = mtype->calc( a, doc );
+  delete mimp;
+  mimp = n;
+}
+
+ObjectTypeCalcer::ObjectTypeCalcer( const ObjectType* type, 
+      const std::vector<ObjectCalcer*>& parents, bool sort )
+  : mparents( ( sort )?type->sortArgs( parents ):parents ), mtype( type ), mimp( 0 )
+{
+  std::for_each( mparents.begin(), mparents.end(),
+                 std::bind2nd( std::mem_fun( &ObjectCalcer::addChild ), this ) );
+}
+
+ObjectCalcer::~ObjectCalcer()
+{
+}
+
+ObjectConstCalcer::ObjectConstCalcer( ObjectImp* imp )
+  : mimp( imp )
+{
+}
+
+ObjectConstCalcer::~ObjectConstCalcer()
+{
+  delete mimp;
+}
+
+const ObjectImp* ObjectConstCalcer::imp() const
+{
+  return mimp;
+}
+
+void ObjectConstCalcer::calc( const KigDocument& )
+{
+}
+
+std::vector<ObjectCalcer*> ObjectConstCalcer::parents() const
+{
+  // we have no parents..
+  return std::vector<ObjectCalcer*>();
+}
+
+void ObjectCalcer::ref()
+{
+  ++refcount;
+}
+
+void ObjectCalcer::deref()
+{
+  if ( --refcount <= 0 ) delete this;
+}
+
+void intrusive_ptr_add_ref( ObjectCalcer* p )
+{
+  p->ref();
+}
+
+void intrusive_ptr_release( ObjectCalcer* p )
+{
+  p->deref();
+}
+
+const ObjectImp* ObjectTypeCalcer::imp() const
+{
+  return mimp;
+}
+
+std::vector<ObjectCalcer*> ObjectTypeCalcer::parents() const
+{
+  return mparents;
+}
+
+void ObjectCalcer::addChild( ObjectCalcer* c )
+{
+  mchildren.push_back( c );
+  ref();
+}
+
+void ObjectCalcer::delChild( ObjectCalcer* c )
+{
+  std::vector<ObjectCalcer*>::iterator i = std::find( mchildren.begin(), mchildren.end(), c );
+  assert( i != mchildren.end() );
+
+  mchildren.erase( i );
+  deref();
+}
+
+ObjectTypeCalcer::~ObjectTypeCalcer()
+{
+  std::for_each( mparents.begin(), mparents.end(),
+                 std::bind2nd( std::mem_fun( &ObjectCalcer::delChild ), this ) );
+  delete mimp;
+}
+
+const ObjectType* ObjectTypeCalcer::type() const
+{
+  return mtype;
+}
+
+ObjectPropertyCalcer::ObjectPropertyCalcer( ObjectCalcer* parent, int propid )
+  : mimp( 0 ), mparent( parent ), mpropid( propid )
+{
+  // Some weird C++ thing prevents me from calling protected members
+  // of ObjectCalcer on mparent.. This is an ugly workaround..
+  ( mparent->*&ObjectCalcer::addChild )( this );
+  //mparent->addChild( this );
+}
+
+ObjectPropertyCalcer::~ObjectPropertyCalcer()
+{
+  // Some weird C++ thing prevents me from calling protected members
+  // of ObjectCalcer on mparent.. This is an ugly workaround..
+  ( mparent->*&ObjectCalcer::delChild )( this );
+  //mparent->delChild( this );
+  delete mimp;
+}
+
+const ObjectImp* ObjectPropertyCalcer::imp() const
+{
+  return mimp;
+}
+
+std::vector<ObjectCalcer*> ObjectPropertyCalcer::parents() const
+{
+  std::vector<ObjectCalcer*> ret;
+  ret.push_back( mparent );
+  return ret;
+}
+
+void ObjectPropertyCalcer::calc( const KigDocument& doc )
+{
+  ObjectImp* n = mparent->imp()->property( mpropid, doc );
+  delete mimp;
+  mimp = n;
+}
+
+ObjectImp* ObjectConstCalcer::switchImp( ObjectImp* newimp )
+{
+  ObjectImp* ret = mimp;
+  mimp = newimp;
+  return ret;
+}
+
+std::vector<ObjectCalcer*> ObjectCalcer::children() const
+{
+  return mchildren;
+}
+
+const ObjectImpType* ObjectPropertyCalcer::impRequirement(
+  ObjectCalcer*, const std::vector<ObjectCalcer*>& ) const
+{
+  return mparent->imp()->impRequirementForProperty( mpropid );
+}
+
+const ObjectImpType* ObjectConstCalcer::impRequirement(
+  ObjectCalcer*, const std::vector<ObjectCalcer*>& ) const
+{
+  assert( false );
+  return ObjectImp::stype();
+}
+
+const ObjectImpType* ObjectTypeCalcer::impRequirement(
+ ObjectCalcer* o, const std::vector<ObjectCalcer*>& os ) const
+{
+  Args args;
+  args.reserve( mparents.size() );
+  std::transform(
+    os.begin(), os.end(),
+    std::back_inserter( args ),
+    std::mem_fun( &ObjectCalcer::imp ) );
+  assert( std::find( args.begin(), args.end(), o->imp() ) != args.end() );
+  return mtype->impRequirement( o->imp(), args );
+}
+
+int ObjectPropertyCalcer::propId() const
+{
+  return mpropid;
+}
+
+void ObjectConstCalcer::setImp( ObjectImp* newimp )
+{
+  delete switchImp( newimp );
+}
+
+void ObjectTypeCalcer::setParents( const std::vector<ObjectCalcer*> np )
+{
+  std::for_each( np.begin(), np.end(),
+                 std::bind2nd( std::mem_fun( &ObjectCalcer::addChild ), this ) );
+  std::for_each( mparents.begin(), mparents.end(),
+                 std::bind2nd( std::mem_fun( &ObjectCalcer::delChild ), this ) );
+  mparents = np;
+}
+
+void ObjectTypeCalcer::setType( const ObjectType* t )
+{
+  mtype = t;
+}
+
+bool ObjectCalcer::canMove() const
+{
+  return false;
+}
+
+bool ObjectCalcer::isFreelyTranslatable() const
+{
+  return false;
+}
+
+Coordinate ObjectCalcer::moveReferencePoint() const
+{
+  assert( false );
+  return Coordinate::invalidCoord();
+}
+
+void ObjectCalcer::move( const Coordinate&, const KigDocument& )
+{
+  assert( false );
+}
+
+bool ObjectTypeCalcer::canMove() const
+{
+  return mtype->canMove( *this );
+}
+
+bool ObjectTypeCalcer::isFreelyTranslatable() const
+{
+  return mtype->isFreelyTranslatable( *this );
+}
+
+Coordinate ObjectTypeCalcer::moveReferencePoint() const
+{
+  return mtype->moveReferencePoint( *this );
+}
+
+void ObjectTypeCalcer::move( const Coordinate& to, const KigDocument& doc )
+{
+  // we need to check if type can in fact move, because this check is
+  // not done for us in all circumstances ( e.g. LineABType::move uses
+  // move on its parents to move them ), and the ObjectType's depend
+  // on move only being called if canMove() returns true..
+  if ( mtype->canMove( *this ) )
+    mtype->move( *this, to, doc );
+}
+
+ObjectCalcer* ObjectPropertyCalcer::parent() const
+{
+  return mparent;
+}
+
+ObjectCalcer::ObjectCalcer()
+  : refcount( 0 )
+{
+}
+
+std::vector<ObjectCalcer*> ObjectCalcer::movableParents() const
+{
+  return std::vector<ObjectCalcer*>();
+}
+
+std::vector<ObjectCalcer*> ObjectTypeCalcer::movableParents() const
+{
+  return mtype->movableParents( *this );
+}
+
+bool ObjectConstCalcer::isDefinedOnOrThrough( const ObjectCalcer* ) const
+{
+  return false;
+}
+
+bool ObjectPropertyCalcer::isDefinedOnOrThrough( const ObjectCalcer* o ) const
+{
+  return o == mparent &&
+    mparent->imp()->isPropertyDefinedOnOrThroughThisImp( propId() );
+}
+
+bool ObjectTypeCalcer::isDefinedOnOrThrough( const ObjectCalcer* o ) const
+{
+  Args args;
+  args.reserve( mparents.size() );
+  std::transform(
+    mparents.begin(), mparents.end(),
+    std::back_inserter( args ),
+    std::mem_fun( &ObjectCalcer::imp ) );
+  if ( std::find( args.begin(), args.end(), o->imp() ) == args.end() )
+    return false;
+
+  return mtype->isDefinedOnOrThrough( o->imp(), args );
+}
+