84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
|
|
* CDE - Common Desktop Environment
|
|
*
|
|
* Copyright (c) 1993-2012, The Open Group. All rights reserved.
|
|
*
|
|
* These libraries and programs are free software; you can
|
|
* redistribute them and/or modify them under the terms of the GNU
|
|
* Lesser General Public License as published by the Free Software
|
|
* Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* These libraries and programs are distributed in the hope that
|
|
* they will be useful, but WITHOUT ANY WARRANTY; without even the
|
|
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
* PURPOSE. See the GNU Lesser General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with these libraries and programs; if not, write
|
|
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
|
|
* Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
/* $XConsortium: Resolver.h /main/4 1996/06/11 17:08:28 cde-hal $ */
|
|
#ifndef _Resolver_h
|
|
#define _Resolver_h
|
|
|
|
class Element;
|
|
class Symbol;
|
|
class FeatureSet;
|
|
class PathTable;
|
|
class Renderer;
|
|
class ResolverStack;
|
|
|
|
#include "SSPath.h"
|
|
#include "ResolverStack.h"
|
|
#include "dti_excs/Exceptions.hh"
|
|
|
|
|
|
/* **************************************************************
|
|
|
|
the Resolver is responsible for taking input from the NodeParser,
|
|
getting a feature set from the Style Sheet and passing it on to a
|
|
Renderer
|
|
|
|
- get Element input from NodeParser
|
|
- consult Style Sheet PathTable to get raw FeatureSet
|
|
- evaluate feature set to resolve variables and expressions
|
|
- merge with parent complete feature set to get complete feature
|
|
set
|
|
- pass data to Renderer (Element, localFeatures, completeFeatures)
|
|
|
|
* ************************************************************** */
|
|
|
|
|
|
|
|
class Resolver : public Destructable
|
|
{
|
|
public:
|
|
Resolver(PathTable& pTable, Renderer& r);
|
|
virtual ~Resolver();
|
|
|
|
// beginElement returns a non-zero value if element is to be ignored
|
|
unsigned int beginElement(Element*);
|
|
void data(const char* data, unsigned int data_length);
|
|
void endElement(const Symbol&);
|
|
|
|
// called before any data
|
|
virtual void Begin();
|
|
// called after all data
|
|
virtual void End();
|
|
|
|
private:
|
|
SSPath f_path ;
|
|
PathTable &f_pathTable;
|
|
|
|
// NOTE: this one could be a pointer so we can change them on the fly
|
|
Renderer &f_Renderer;
|
|
|
|
ResolverStack f_resolverStack;
|
|
};
|
|
|
|
#endif /* _Resolver_h */
|
|
/* DO NOT ADD ANY LINES AFTER THIS #endif */
|