/usr/include/OverlayUnidraw/indexmixins.h is in ivtools-dev 1.2.11a1-2.
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* Copyright (c) 1998-1999 Vectaport Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* implementation of gs, pts, and pic indexing
*/
#ifndef indexmixins_h
#define indexmixins_h
#include <Unidraw/enter-scope.h>
class Graphic;
class MultiLineObj;
class OverlaysComp;
class Picture;
//: mixin for graphic-state indexing mechanism used by OverlayIdrawComp, etc..
// When a tree of graphical components is saved to disk (translated to ASCII), the
// graphic states are output first as 'gs' records, to allow for replicated graphic
// states to appear only once in a file. When reading these documents back in,
// the istream constructor of OverlayIdrawComp (and other top-level components) uses
// this mixin to manage a table of graphic states, building it up as each 'gs'
// record is read, and accessing entries for each ":gs id" field found in subsequent
// records.
class IndexedGsMixin {
public:
IndexedGsMixin();
void grow_indexed_gs(Graphic*);
// add graphic state to table.
Graphic* get_indexed_gs(int id);
// retrieve graphic state by 'id'.
void reset_indexed_gs();
// reset graphic state table.
protected:
Picture* _gslist;
};
//: mixin for point-list indexing mechanism used by OverlayIdrawComp, etc..
// When a tree of graphical components is saved to disk (translated to ASCII), it is
// possible to enable the output of point-lists first as 'pts' records, to allow
// for compression of replicated point lists within a single document. When reading
// these documents back in, the istream constructor of OverlayIdrawComp (and other
// top-level components) uses this mixin to manage a table of point lists, building
// it up as each 'pts' record is read, and accessing entries for each ":pts id" field
// found in subsequent records.
class IndexedPtsMixin {
public:
IndexedPtsMixin();
void grow_indexed_pts(MultiLineObj*);
// add point list to table.
MultiLineObj* get_indexed_pts(int id);
// retrieve point list by 'id'.
void reset_indexed_pts();
// reset point list table.
protected:
MultiLineObj** _ptsbuf;
int _ptsnum;
int _ptslen;
};
//: mixin for composite-graphic (pic) indexing mechanism used by OverlayIdrawComp, etc..
// When a tree of graphical components is saved to disk (translated to ASCII), it is
// possible to enable the output of common composite-graphics as 'pic' records,
// to allow for compression of replicated composite-graphics within a single document.
// When reading these documents back in, the istream constructor of OverlayIdrawComp
// (and other top-level components) uses this mixin to manage a table of pics,
// building it up as each 'pic' record is read, and accessing entries for each
// ":pics id" field found in subsequent records.
class IndexedPicMixin {
public:
IndexedPicMixin();
void grow_indexed_pic(OverlaysComp*);
// add pic to table.
OverlaysComp* get_indexed_pic(int id);
// retrieve pic by 'id'.
void reset_indexed_pic();
// reset pic table.
protected:
OverlaysComp** _picbuf;
int _picnum;
int _piclen;
};
#endif
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