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magic/select/selCreate.c

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/* selCreate.c -
*
* This file provides routines to make selections by copying
* things into a special cell named "__SELECT__".
*
* *********************************************************************
* * Copyright (C) 1985, 1990 Regents of the University of California. *
* * Permission to use, copy, modify, and distribute this *
* * software and its documentation for any purpose and without *
* * fee is hereby granted, provided that the above copyright *
* * notice appear in all copies. The University of California *
* * makes no representations about the suitability of this *
* * software for any purpose. It is provided "as is" without *
* * express or implied warranty. Export of this software outside *
* * of the United States of America may require an export license. *
* *********************************************************************
*/
#ifndef lint
static char rcsid[] __attribute__ ((unused)) = "$Header: /usr/cvsroot/magic-8.0/select/selCreate.c,v 1.10 2010/06/24 12:37:56 tim Exp $";
#endif /* not lint */
#include <stdio.h>
#include <string.h>
#include "utils/magic.h"
#include "utils/malloc.h"
#include "utils/geometry.h"
#include "tiles/tile.h"
#include "utils/hash.h"
#include "database/database.h"
#include "windows/windows.h"
#include "dbwind/dbwind.h"
#include "utils/undo.h"
#include "commands/commands.h"
#include "select/selInt.h"
#include "select/select.h"
#include "drc/drc.h"
#include "utils/main.h"
#include "utils/signals.h"
/* Two cells worth of information are kept around by the selection
* module. SelectDef and SelectUse are for the cells whose contents
* are the current selection. Select2Def and Select2Use provide a
* temporary working space for procedures that manipulate the selection.
* for example, Select2Def is used to hold nets or regions while they
* are being extracted by SelectRegion or SelectNet. Once completely
* extracted, information is copied to SelectDef. Changes to
* SelectDef are undo-able and redo-able (so that the undo package
* can deal with selection changes), but changes to Select2Def are
* not undo-able (undoing is always disabled when the cell is modified).
*/
global CellDef *SelectDef, *Select2Def;
global CellUse *SelectUse, *Select2Use;
/* The CellDef below points to the definition FROM which the selection
* is extracted. This is the root definition of a window. Everything
* in the selection must have come from the same place, so we clear the
* selection whenever the user tries to select from a new hierarchy.
*/
CellDef *SelectRootDef = NULL;
/* The CellUse below is the last use selected by SelectUse. It is
* kept around to support the "replace" feature of SelectUse.
*
* Procedures which deselect a cell must reset this to null if they
* happen to deselect this usage. (Danger Will Robinson)
*/
global CellUse *selectLastUse = NULL;
/*
* ----------------------------------------------------------------------------
*
* SelectInit --
*
* This procedure initializes the selection code by creating
* the selection cells.
*
* Results:
* None.
*
* Side effects:
* The select cells are created if they don't already exist.
* Selection undo-ing is also initialized.
*
* ----------------------------------------------------------------------------
*/
void
SelectInit()
{
static bool initialized = FALSE;
if (initialized) return;
else initialized = TRUE;
/* Create the working cells used internally to this module to
* hold selected information. Don't allow any of this to be
* undone, or else it could invalidate all the pointers we
* keep around to the cells.
*/
UndoDisable();
SelectDef = DBCellLookDef("__SELECT__");
if (SelectDef == (CellDef *) NULL)
{
SelectDef = DBCellNewDef("__SELECT__");
ASSERT(SelectDef != (CellDef *) NULL, "SelectInit");
DBCellSetAvail(SelectDef);
SelectDef->cd_flags |= CDINTERNAL;
TTMaskZero(&SelectDef->cd_types);
}
SelectUse = DBCellNewUse(SelectDef, (char *) NULL);
DBSetTrans(SelectUse, &GeoIdentityTransform);
SelectUse->cu_expandMask = CU_DESCEND_SPECIAL; /* This is always expanded. */
SelectUse->cu_flags = 0; /* never locked down */
Select2Def = DBCellLookDef("__SELECT2__");
if (Select2Def == (CellDef *) NULL)
{
Select2Def = DBCellNewDef("__SELECT2__");
ASSERT(Select2Def != (CellDef *) NULL, "SelectInit");
DBCellSetAvail(Select2Def);
Select2Def->cd_flags |= CDINTERNAL;
}
Select2Use = DBCellNewUse(Select2Def, (char *) NULL);
DBSetTrans(Select2Use, &GeoIdentityTransform);
Select2Use->cu_expandMask = CU_DESCEND_SPECIAL; /* This is always expanded. */
Select2Use->cu_flags = 0; /* never locked down */
UndoEnable();
SelUndoInit();
}
/*
* ----------------------------------------------------------------------------
*
* SelectClear --
*
* This procedure clears the current selection.
*
* Results:
* None.
*
* Side effects:
* All information is removed from the select cell, and selection
* information is also taken off the screen.
*
* ----------------------------------------------------------------------------
*/
/* The variables below are used to record information about subcells that
* must be cleared from the select cell.
*/
#define MAXUSES 30
static CellUse *(selDeleteUses[MAXUSES]);
static int selNDelete;
void
SelectClear()
{
SearchContext scx;
Rect r, expand;
extern int selClearFunc(); /* Forward declaration. */
if (SelectRootDef == NULL) return;
scx.scx_area = SelectDef->cd_bbox;
expand = scx.scx_area;
/* Special handling when the cell is flagged as a net selection */
if (SelectUse->cu_flags & CU_SELECT_NET)
{
SelNetRememberForUndo((CellDef *)NULL, (Point *)NULL,
TT_SPACE, FALSE, FALSE);
SelectUse->cu_flags = 0;
DBCellClearDef(SelectDef);
}
else
{
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
SelectUse->cu_flags = 0;
/* Erase all the paint from the select cell. */
DBEraseMask(SelectDef, &TiPlaneRect, &DBAllButSpaceBits);
/* For the line below to work, paint tables need to be set up correctly! */
/* DBErase(SelectDef, &TiPlaneRect, TT_SPACE); */
/* Erase all of the labels from the select cell. */
(void) DBEraseLabel(SelectDef, &TiPlaneRect, &DBAllTypeBits, &expand);
/* Erase all of the subcells from the select cell. This is a bit tricky,
* because we can't erase the subcells while searching for them (it will
* cause problems for the database). The code below first grabs up a
* few subcells, then deletes them, then grabs up a few more, then deletes
* them, and so on until done.
*/
scx.scx_use = SelectUse;
scx.scx_trans = GeoIdentityTransform;
while (TRUE)
{
int i;
selNDelete = 0;
(void) DBCellSrArea(&scx, selClearFunc, (ClientData) NULL);
for (i = 0; i < selNDelete; i += 1)
{
DBUnLinkCell(selDeleteUses[i], SelectDef);
DBDeleteCell(selDeleteUses[i]);
(void) DBCellDeleteUse(selDeleteUses[i]);
}
if (selNDelete < MAXUSES) break;
}
selectLastUse = NULL;
SelRememberForUndo(FALSE, SelectRootDef, &scx.scx_area);
}
TTMaskZero(&SelectDef->cd_types);
/* Reset the transform, if we have been moving the selection around */
GeoTransRect(&SelectUse->cu_transform, &expand, &r);
SelectUse->cu_transform = GeoIdentityTransform;
/* Erase the selection from the screen. */
DBWHLRedraw(SelectRootDef, &r, TRUE);
DBReComputeBbox(SelectDef);
DBWAreaChanged(SelectDef, &expand, DBW_ALLWINDOWS,
(TileTypeBitMask *) NULL);
}
/* Search function to help clear subcells from the selection. It just
* records information about several subcells (up to MAXUSES).
*/
int
selClearFunc(scx)
SearchContext *scx; /* Describes a cell that was found. */
{
selDeleteUses[selNDelete] = scx->scx_use;
selNDelete += 1;
if (selNDelete == MAXUSES) return 1;
else return 2;
}
/*
* ----------------------------------------------------------------------------
*
* selIntersectPaintFunc2 ---
*
* ----------------------------------------------------------------------------
*/
int
selIntersectPaintFunc2(tile, rect)
Tile *tile; /* The tile to copy paint from. */
Rect *rect; /* Area to clip to */
{
Rect r;
TiToRect(tile, &r);
GEOCLIP(&r, rect); /* Clip out the intersection area */
DBPaint(SelectDef, &r, TiGetTypeExact(tile)); /* Paint back into SelectDef */
return 0; /* Keep the search going. */
}
/*
* ----------------------------------------------------------------------------
*
* selIntersectPaintFunc --
*
* Erase paint of types in rMask from the area of the tile.
*
* ----------------------------------------------------------------------------
*/
int
selIntersectPaintFunc(tile)
Tile *tile; /* The tile to copy paint from. */
{
TileTypeBitMask tMask;
Rect r;
int pNum;
TiToRect(tile, &r);
for (pNum = 0; pNum < DBNumPlanes; pNum++)
{
DBSrPaintArea((Tile *)NULL, Select2Def->cd_planes[pNum], &r,
&DBAllButSpaceAndDRCBits, selIntersectPaintFunc2,
(ClientData)&r);
}
return 0; /* Keep the search going. */
}
/*
* ----------------------------------------------------------------------------
*
* SelectIntersect --
*
* This procedure selects all information that falls in a given area
* and contains the intersection of all the supplied types.
*
* Results:
* None.
*
* Side effects:
* The indicated information is added to the select cell, and
* outlined on the screen. Only information of particular
* types, and in expanded cells (according to xMask) is
* selected.
*
* ----------------------------------------------------------------------------
*/
void
SelectIntersect(scx, type, xMask, negate)
SearchContext *scx; /* Describes the area in which material
* is to be selected. The resulting
* coordinates should map to the coordinates
* of EditRootDef. The cell use should be
* the root of a window.
*/
TileType type; /* Indicates which layer to intersect with
* the current selection.
*/
int xMask; /* Indicates window (or windows) where cells
* must be expanded for their contents to be
* considered. 0 means treat everything as
* expanded.
*/
bool negate; /* If true, search on NOT(type) */
{
TileTypeBitMask tMask, rMask;
TileType s, t;
int plane;
SearchContext scx2;
/* The source definition may not change */
if (SelectRootDef != scx->scx_use->cu_def) return;
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
/* Copy SelectDef contents (paint only) into Select2Def */
DBCellClearDef(Select2Def);
scx2.scx_use = SelectUse;
scx2.scx_area = SelectUse->cu_bbox;
GeoTransTrans(&GeoIdentityTransform, &SelectUse->cu_transform, &scx2.scx_trans);
DBCellCopyAllPaint(&scx2, &DBAllButSpaceAndDRCBits, CU_DESCEND_NO_LOCK,
Select2Use);
/* Clear the original selection */
DBCellClearDef(SelectDef);
/* Select all paint of type "type" and copy into SelectDef */
TTMaskSetOnlyType(&tMask, type);
plane = DBPlane(type);
(void) DBCellCopyAllPaint(scx, &tMask, xMask, SelectUse);
/* Scan Select2Def for all geometry inside the area of "type", and */
/* copy back to SelectDef as "type" */
if (negate)
{
TTMaskCom(&tMask);
TTMaskAndMask(&tMask, &DBPlaneTypes[plane]);
}
DBSrPaintArea((Tile *)NULL, SelectDef->cd_planes[plane],
&scx->scx_area, &tMask, selIntersectPaintFunc, (ClientData)NULL);
if (negate) TTMaskSetOnlyType(&tMask, type); /* Restore original mask */
DBEraseMask(SelectDef, &TiPlaneRect, &tMask);
/* Display the new selection. */
SelRememberForUndo(FALSE, SelectRootDef, &scx->scx_area);
DBReComputeBbox(SelectDef);
DBWHLRedraw(SelectRootDef, &scx->scx_area, TRUE);
DBWAreaChanged(SelectDef, &SelectDef->cd_extended, DBW_ALLWINDOWS,
&DBAllButSpaceBits);
}
/*
* ----------------------------------------------------------------------------
*
* SelectArea --
*
* This procedure selects all information of given types that
* falls in a given area.
*
* Results:
* None.
*
* Side effects:
* The indicated information is added to the select cell, and
* outlined on the screen. Only information of particular
* types, and in expanded cells (according to xMask) is
* selected.
*
* ----------------------------------------------------------------------------
*/
void
SelectArea(scx, types, xMask, globmatch)
SearchContext *scx; /* Describes the area in which material
* is to be selected. The resulting
* coordinates should map to the coordinates
* of EditRootDef. The cell use should be
* the root of a window.
*/
TileTypeBitMask *types; /* Indicates which layers to select. Can
* include L_CELL and L_LABELS to select
* labels and unexpanded subcells. If L_LABELS
* is specified then all labels touching the
* area are selected. If L_LABELS isn't
* specified, then only labels attached to
* selected material are selected.
*/
int xMask; /* Indicates window (or windows) where cells
* must be expanded for their contents to be
* considered. 0 means treat everything as
* expanded.
*/
char *globmatch; /* If non-NULL, and if L_LABELS is among the
* selection types, then do glob-style matching
* of any labels against this string.
*/
{
Rect labelArea, cellArea;
/* If the source definition is changing, clear the old selection. */
if (SelectRootDef != scx->scx_use->cu_def)
{
if (SelectRootDef != NULL)
SelectClear();
SelectRootDef = scx->scx_use->cu_def;
SelSetDisplay(SelectUse, SelectRootDef);
}
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
/* Select paint. */
(void) DBCellCopyAllPaint(scx, types, xMask, SelectUse);
SelectDef->cd_types = *types; /* Remember what types were requested */
/* Select labels. */
if (TTMaskHasType(types, L_LABEL))
{
if (globmatch != NULL)
DBCellCopyGlobLabels(scx, &DBAllTypeBits, xMask, SelectUse, &labelArea,
globmatch);
else
DBCellCopyAllLabels(scx, &DBAllTypeBits, xMask, SelectUse, &labelArea);
}
else (void) DBCellCopyAllLabels(scx, types, xMask, SelectUse, &labelArea);
/* Select unexpanded cell uses. */
if (TTMaskHasType(types, L_CELL))
(void) DBCellCopyAllCells(scx, xMask, SelectUse, &cellArea);
else
{
cellArea.r_xbot = 0;
cellArea.r_xtop = -1;
}
/* Display the new selection. */
(void) GeoIncludeAll(&scx->scx_area, &labelArea);
(void) GeoIncludeAll(&cellArea, &labelArea);
SelRememberForUndo(FALSE, SelectRootDef, &labelArea);
DBReComputeBbox(SelectDef);
DBWHLRedraw(SelectRootDef, &labelArea, TRUE);
DBWAreaChanged(SelectDef, &SelectDef->cd_extended, DBW_ALLWINDOWS,
&DBAllButSpaceBits);
}
/*
* ----------------------------------------------------------------------------
*
* selFindChunk --
*
* This is a recursive procedure to find the largest chunk of
* material in a particular area. It locates a rectangular
* area of given materials whose minimum dimension is as
* large as possible, and whose maximum dimension is also as
* large as possible (but minimum dimension is more important).
* Furthermore, the chunk must lie within a particular area and
* must contain a given area.
*
* Results:
* None.
*
* Side effects:
* None.
*
* ----------------------------------------------------------------------------
*/
#define MAX_RECURSION_LEVEL 22
void
selFindChunk(plane, wrongTypes, searchArea, containedArea, bestMin,
bestMax, bestChunk, level)
Plane *plane; /* Plane on which to hunt for chunk. */
TileTypeBitMask *wrongTypes; /* Types that are not allowed to be
* part of the chunk.
*/
Rect *searchArea; /* Largest allowable size for the
* chunk. Note: don't overestimate
* this or the procedure will take a
* long time! (it processes every
* tile in this area).
*/
Rect *containedArea; /* The chunk returned must contain
* this entire area.
*/
int *bestMin; /* Largest minimum dimension seen so
* far: skip any chunks that can't
* match this. Updated by this
* procedure.
*/
int *bestMax; /* Largest maximum dimension seen
* so far.
*/
Rect *bestChunk; /* Filled in with largest chunk seen
* so far, if we find one better than
* bestMin and bestMax.
*/
int level; /* Recursion level (to avoid worst-
* case scenarios)
*/
{
Rect smaller;
int min, max;
extern int selChunkFunc();
Rect wrong;
if (level == MAX_RECURSION_LEVEL) return;
/* If the search area is already smaller than the chunk to beat,
* there's no point in even examining this chunk.
*/
min = searchArea->r_xtop - searchArea->r_xbot;
max = searchArea->r_ytop - searchArea->r_ybot;
if (min > max)
{
int tmp;
tmp = min; min = max; max = tmp;
}
if (min < *bestMin) return;
if ((min == *bestMin) && (max <= *bestMax)) return;
/* At each stage, search the area that's left for material of the
* wrong type.
*/
if (DBSrPaintArea((Tile *) NULL, plane, searchArea, wrongTypes,
selChunkFunc, (ClientData) &wrong) == 0)
{
/* The area contains nothing but material of the right type,
* so it is now the "chunk to beat".
*/
*bestMin = min;
*bestMax = max;
*bestChunk = *searchArea;
return;
}
if (SigInterruptPending)
return;
/* At this point the current search area contains some material of
* the wrong type. We have to reduce the search area to exclude this
* material. There are two ways that this can be done while still
* producing areas that contain containedArea. Try both of those,
* and repeat the whole thing recursively on the smaller areas.
*/
/* First, try reducing the x-range. */
smaller = *searchArea;
if (wrong.r_xbot >= containedArea->r_xtop)
smaller.r_xtop = wrong.r_xbot;
else if (wrong.r_xtop <= containedArea->r_xbot)
smaller.r_xbot = wrong.r_xtop;
else goto tryY; /* Bad material overlaps containedArea in x. */
selFindChunk(plane, wrongTypes, &smaller, containedArea,
bestMin, bestMax, bestChunk, level + 1);
/* Also try reducing the y-range to see if that works better. */
tryY: smaller = *searchArea;
if (wrong.r_ybot >= containedArea->r_ytop)
smaller.r_ytop = wrong.r_ybot;
else if (wrong.r_ytop <= containedArea->r_ybot)
smaller.r_ybot = wrong.r_ytop;
else return; /* Bad material overlaps containedArea in y. */
selFindChunk(plane, wrongTypes, &smaller, containedArea,
bestMin, bestMax, bestChunk, level + 1);
}
/* Search function to find split tiles in the area of interest.
*/
int
selSplitFunc(tile, cxp)
Tile *tile;
TreeContext *cxp;
{
SearchContext *scx = cxp->tc_scx;
Rect *area = (Rect *) cxp->tc_filter->tf_arg;
Rect locarea;
if (IsSplit(tile))
{
TiToRect(tile, &locarea);
GeoTransRect(&scx->scx_trans, &locarea, area);
return 1;
}
return 0;
}
/* This procedure is called for each tile of the wrong type in an
* area that is supposed to contain only tiles of other types. It
* just returns the area of the wrong material and aborts the search.
*/
int
selChunkFunc(tile, wrong)
Tile *tile; /* The offending tile. */
Rect *wrong; /* Place to store the tile's area. */
{
TiToRect(tile, wrong);
return 1; /* Abort the search. */
}
/*
* ----------------------------------------------------------------------------
*
* SelectChunk --
*
* This procedure selects a single rectangular chunk of
* homogeneous material.
*
* Results:
* None.
*
* Side effects:
* More material is added to the select cell and displayed
* on the screen. This procedure finds the largest rectangular
* chunk of material "type" that contains the area given in
* in scx. The material need not all be in one cell, but it
* must all be in cells that are expanded according to "xMask".
* If pArea is given, the rectangle it points to is filled in
* with the area of the chunk that was selected.
*
* ----------------------------------------------------------------------------
*/
void
SelectChunk(scx, type, xMask, pArea, less)
SearchContext *scx; /* Area to tree-search for material. The
* transform must map to root coordinates
* of the edit cell.
*/
TileType type; /* The type of material to be considered. */
int xMask; /* Indicates window (or windows) where cells
* must be expanded for their contents to be
* considered. 0 means treat everything as
* expanded.
*/
Rect *pArea; /* If non-NULL, gets filled in with the area
* of the selection.
*/
bool less;
{
#define INITIALSIZE 10
SearchContext newscx;
TileTypeBitMask wrongTypes, typeMask;
TileType ttype;
Rect bestChunk;
int bestMin, bestMax, width, height;
extern int selSplitFunc(); /* Forward reference. */
/* If the source definition is changing, clear the old selection. */
if (SelectRootDef != scx->scx_use->cu_def)
{
if (SelectRootDef != NULL)
SelectClear();
SelectRootDef = scx->scx_use->cu_def;
SelSetDisplay(SelectUse, SelectRootDef);
}
/* The chunk is computed iteratively. First extract a small
* region (defined by INITIALSIZE) into Select2Def. Then find
* the largest chunk in the region. If the chunk touches a
* side of the region, then extract a larger region and try
* again. Keep making the region larger and larger until we
* eventually find a region that completely contains the chunk
* with space left over around the edges.
*/
UndoDisable();
TTMaskSetOnlyType(&typeMask, type);
/* Stacked types containing "type" need to be added to the mask */
if (DBIsContact(type)) DBMaskAddStacking(&typeMask);
TTMaskCom2(&wrongTypes, &typeMask);
newscx = *scx;
/* If the tile under the area of interest is a split tile, */
/* then we use that tile as the chunk. This routine should */
/* work like the while() loop underneath, looking for the */
/* largest split tile, but this is a minor enhancement. */
/* *However*, if it is done, the functions */
/* DBCellCopyManhattanPaint()/dbCopyManhattanPaint() should */
/* be reconsidered. */
if (DBTreeSrTiles(&newscx, &typeMask, 0, selSplitFunc,
(ClientData)&bestChunk) != 0)
{
goto chunkdone;
}
bestMin = bestMax = 0;
bestChunk = GeoNullRect;
GEO_EXPAND(&newscx.scx_area, INITIALSIZE, &newscx.scx_area);
while (TRUE)
{
/* Extract a bunch of junk. */
DBCellClearDef(Select2Def);
DBCellCopyManhattanPaint(&newscx, &typeMask, xMask, Select2Use);
/* Now find the best chunk in the area. */
selFindChunk(Select2Def->cd_planes[DBPlane(type)],
&wrongTypes, &newscx.scx_area, &scx->scx_area,
&bestMin, &bestMax, &bestChunk, 0);
if (GEO_RECTNULL(&bestChunk))
{
/* No chunk was found, so return. */
UndoEnable();
if (pArea != NULL) *pArea = bestChunk;
return;
}
/* If the chunk is completely inside the area we yanked, then we're
* done.
*/
if (GEO_SURROUND_STRONG(&newscx.scx_area, &bestChunk)) break;
/* The chunk extends to the edge of the area. Any place that the
* chunk touches an edge, move that edge out by a factor of two.
* Any place it doesn't touch, move the edge in to be just one
* unit out from the chunk.
*/
width = newscx.scx_area.r_xtop - newscx.scx_area.r_xbot;
height = newscx.scx_area.r_ytop - newscx.scx_area.r_ybot;
if (bestChunk.r_xbot == newscx.scx_area.r_xbot)
newscx.scx_area.r_xbot -= width;
else newscx.scx_area.r_xbot = bestChunk.r_xbot - 1;
if (bestChunk.r_ybot == newscx.scx_area.r_ybot)
newscx.scx_area.r_ybot -= height;
else newscx.scx_area.r_ybot= bestChunk.r_ybot - 1;
if (bestChunk.r_xtop == newscx.scx_area.r_xtop)
newscx.scx_area.r_xtop += width;
else newscx.scx_area.r_xtop = bestChunk.r_xtop + 1;
if (bestChunk.r_ytop == newscx.scx_area.r_ytop)
newscx.scx_area.r_ytop += height;
else newscx.scx_area.r_ytop = bestChunk.r_ytop + 1;
}
chunkdone:
/* Flag the cell as a chunk selection so we can treat */
/* the contents differently when doing a move op. */
SelectUse->cu_flags |= CU_SELECT_CHUNK;
UndoEnable();
if (less)
{
SelRemoveArea(&bestChunk, &typeMask, NULL);
}
else
{
newscx.scx_area = bestChunk;
/* Remove any stacked contact types for SelectArea */
if (DBIsContact(type))
TTMaskSetOnlyType(&typeMask, type);
SelectArea(&newscx, &typeMask, xMask, NULL);
}
if (pArea != NULL) *pArea = bestChunk;
}
/*
* ----------------------------------------------------------------------------
*
* SelectRegion --
*
* Select an entire region of material, no matter what its
* shape.
*
* Results:
* None.
*
* Side effects:
* This procedure traces out the region consisting entirely
* of type "type", and selects all that material. The search
* starts from "type" material under scx and continues outward
* to get all material in all cells connected to the area under
* scx by material of type "type". If pArea is specified, then
* the rectangle that it points to is filled in with the bounding
* box of the region that was selected.
*
* ----------------------------------------------------------------------------
*/
void
SelectRegion(scx, type, xMask, pArea, less)
SearchContext *scx; /* Area to tree-search for material. The
* transform must map to EditRoot coordinates.
*/
TileType type; /* The type of material to be considered. */
int xMask; /* Indicates window (or windows) where cells
* must be expanded for their contents to be
* considered. 0 means treat everything as
* expanded.
*/
Rect *pArea; /* If non-NULL, points to rectangle to be
* filled in with region's bounding box.
*/
bool less;
{
TileTypeBitMask connections[TT_MAXTYPES];
int i;
SearchContext scx2;
/* If the source definition is changing, clear the old selection. */
if (SelectRootDef != scx->scx_use->cu_def)
{
if (SelectRootDef != NULL)
SelectClear();
SelectRootDef = scx->scx_use->cu_def;
SelSetDisplay(SelectUse, SelectRootDef);
}
/* Set up a connection table that allows only a particular type
* of material to be considered in the region.
*/
for (i=0; i<DBNumTypes; i+=1)
TTMaskZero(&connections[i]);
TTMaskSetType(&connections[type], type);
/* Clear out the temporary selection cell and yank all of the
* connected paint into it.
*/
UndoDisable();
DBCellClearDef(Select2Def);
DBTreeCopyConnect(scx, &connections[type], xMask, connections,
&TiPlaneRect, SelectDoLabels, Select2Use);
UndoEnable();
/* Now transfer what we found into the main selection cell. Pick
* up all the labels that correspond to the selected material.
*/
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
if (less)
{
(void) SelRemoveSel2();
}
else
{
scx2.scx_use = Select2Use;
scx2.scx_area = Select2Def->cd_bbox;
scx2.scx_trans = GeoIdentityTransform;
DBCellCopyAllPaint(&scx2, &DBAllButSpaceAndDRCBits,
0, SelectUse);
DBCellCopyAllLabels(&scx2, &DBAllTypeBits, CU_DESCEND_SPECIAL, SelectUse,
(Rect *) NULL);
}
/* Display the new selection. */
SelRememberForUndo(FALSE, SelectRootDef, &Select2Def->cd_bbox);
DBReComputeBbox(SelectDef);
DBComputeUseBbox(SelectUse);
DBWHLRedraw(SelectRootDef, &Select2Def->cd_extended, TRUE);
DBWAreaChanged(SelectDef, &Select2Def->cd_extended, DBW_ALLWINDOWS,
&DBAllButSpaceBits);
if (pArea != NULL) *pArea = Select2Def->cd_extended;
}
/*
* ----------------------------------------------------------------------------
*
* SelectNet --
*
* This procedure selects an entire electrically-connected net.
*
* Results:
* None.
*
* Side effects:
* Starting from material of type "type" under scx, this procedure
* finds and highlights all material in all expanded cells that
* is electrically-connected to the starting material through a
* chain of expanded cells. If pArea is specified, then the
* rectangle that it points to is filled in with the bounding box
* of the net that was selected.
*
* ----------------------------------------------------------------------------
*/
void
SelectNet(scx, type, xMask, pArea, less)
SearchContext *scx; /* Area to tree-search for material. The
* transform must map to EditRoot coordinates.
*/
TileType type; /* The type of material to be considered. */
int xMask; /* Indicates window (or windows) where cells
* must be expanded for their contents to be
* considered. 0 means treat everything as
* expanded.
*/
Rect *pArea; /* If non-NULL, points to rectangle to be
* filled in with net's bounding box.
*/
bool less; /* Whether to remove material from the
* selection using SelDeleteSel2
*/
{
TileTypeBitMask mask;
SearchContext scx2;
Point savePoint = scx->scx_area.r_ll;
/* If the source definition is changing, clear the old selection. */
if (SelectRootDef != scx->scx_use->cu_def)
{
if (SelectRootDef != NULL)
SelectClear();
SelectRootDef = scx->scx_use->cu_def;
SelSetDisplay(SelectUse, SelectRootDef);
}
TTMaskZero(&mask);
// Make sure that SelectNet() matches connection-compatible
// types with the type passed to the routine.
// TTMaskSetType(&mask, type);
TTMaskSetMask(&mask, &DBConnectTbl[type]);
UndoDisable();
DBCellClearDef(Select2Def);
DBTreeCopyConnect(scx, &mask, xMask, DBConnectTbl,
&TiPlaneRect, SelectDoLabels, Select2Use);
UndoEnable();
/* Network undo method added by Nishit and Tim, July 8-10, 2004 */
SelNetRememberForUndo(SelectRootDef, &savePoint, type, less, TRUE);
/* Now transfer what we found into the main selection cell. Pick
* up all the labels that correspond to the selected material.
*/
UndoDisable();
if (less)
{
(void) SelRemoveSel2();
}
else
{
scx2.scx_use = Select2Use;
scx2.scx_area = Select2Def->cd_bbox;
scx2.scx_trans = GeoIdentityTransform;
DBCellCopyAllPaint(&scx2, &DBAllButSpaceAndDRCBits,
0, SelectUse);
DBCellCopyAllLabels(&scx2, &DBAllTypeBits, CU_DESCEND_SPECIAL, SelectUse,
(Rect *) NULL);
}
/* Set the cell use flags to mark this as a net selection, */
/* so we can treat it differently when it comes time to */
/* unselect it. */
SelectUse->cu_flags |= CU_SELECT_NET;
UndoEnable();
DBReComputeBbox(SelectDef);
DBComputeUseBbox(SelectUse);
DBWHLRedraw(SelectRootDef, &Select2Def->cd_extended, TRUE);
DBWAreaChanged(SelectDef, &Select2Def->cd_extended, DBW_ALLWINDOWS,
&DBAllButSpaceBits);
if (pArea != NULL) *pArea = Select2Def->cd_extended;
}
/*
* ----------------------------------------------------------------------------
*
* SelectCell --
*
* Select a subcell by making a copy of it in the __SELECT__ cell.
*
* Results:
* None.
*
* Side effects:
* The given use is copied into the selection. If replace is TRUE,
* then the last subcell to be selected via this procedure is
* deselected.
*
* ----------------------------------------------------------------------------
*/
void
SelectCell(use, rootDef, trans, replace)
CellUse *use; /* Cell use to be selected. */
CellDef *rootDef; /* Root definition of window in which selection
* is being made.
*/
Transform *trans; /* Transform from the coordinates of use's
* definition to the coordinates of rootDef.
*/
bool replace; /* TRUE means deselect the last cell selected
* by this procedure, if it's still selected.
*/
{
CellUse *newUse;
/* If the source definition is changing, clear the old selection. */
if (SelectRootDef != rootDef)
{
if (SelectRootDef != NULL)
SelectClear();
SelectRootDef = rootDef;
SelSetDisplay(SelectUse, SelectRootDef);
}
/* Deselect the last cell selected, if requested. */
if (replace && (selectLastUse != NULL))
{
Rect area;
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
area = selectLastUse->cu_bbox;
DBUnLinkCell(selectLastUse, SelectDef);
DBDeleteCell(selectLastUse);
(void) DBCellDeleteUse(selectLastUse);
SelRememberForUndo(FALSE, SelectRootDef, &area);
DBWHLRedraw(SelectRootDef, &area, TRUE);
selectLastUse = (CellUse *)NULL;
}
/* When creating a new use, try to re-use the id from the old
* one. Only create a new one if the old id can't be used.
*/
newUse = DBCellNewUse(use->cu_def, (char *) use->cu_id);
if (!DBLinkCell(newUse, SelectDef))
{
freeMagic((char *) newUse->cu_id);
newUse->cu_id = NULL;
(void) DBLinkCell(newUse, SelectDef);
}
DBSetArray(use, newUse);
DBSetTrans(newUse, trans);
newUse->cu_expandMask = use->cu_expandMask;
newUse->cu_flags = use->cu_flags;
/* If this cell is already selected, there's nothing more to do.
* Since we didn't change the selection here, be sure NOT to remember
* it for future deselection!
*/
if (DBCellFindDup(newUse, SelectDef) != NULL)
{
DBUnLinkCell(newUse, SelectDef);
(void) DBCellDeleteUse(newUse);
selectLastUse = (CellUse *) NULL;
return;
}
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
DBPlaceCell(newUse, SelectDef);
selectLastUse = newUse;
SelRememberForUndo(FALSE, SelectRootDef, &newUse->cu_bbox);
DBReComputeBbox(SelectDef);
DBWHLRedraw(SelectRootDef, &newUse->cu_bbox, TRUE);
DBWAreaChanged(SelectDef, &newUse->cu_bbox, DBW_ALLWINDOWS,
&DBAllButSpaceBits);
}
/*
* ----------------------------------------------------------------------------
*
* SelectAndCopy1 --
*
* This procedure takes the contents of SelectDef, and makes a
* copy of them in the edit cell. Unlike SelectAndCopy2, the
* original selection is unchanged, and SelectDef is not cleared.
* This allows the implementation of "drag and drop" selections.
*
* Results:
* None.
*
* Side effects:
* The selection is augmented with what's in Select2Def. The caller
* should normally have cleared the selection before calling us.
* The edit cell is modified to include everything that was in
* Select2Def.
*
* ----------------------------------------------------------------------------
*/
void
SelectAndCopy1()
{
SearchContext scx;
Rect editArea;
TileTypeBitMask mask;
/* Just copy the information in Select2Def twice, once into the
* edit cell and once into the main selection cell.
*/
scx.scx_use = SelectUse;
scx.scx_area = SelectUse->cu_bbox;
GeoTransTrans(&SelectUse->cu_transform, &RootToEditTransform, &scx.scx_trans);
TTMaskAndMask3(&mask, &DBAllButSpaceAndDRCBits, &DBActiveLayerBits);
(void) DBCellCopyAllPaint(&scx, &mask, CU_DESCEND_SPECIAL, EditCellUse);
(void) DBCellCopyAllLabels(&scx, &DBActiveLayerBits, CU_DESCEND_SPECIAL,
EditCellUse, (Rect *) NULL);
(void) DBCellCopyAllCells(&scx, CU_DESCEND_SPECIAL, EditCellUse, (Rect *) NULL);
GeoTransRect(&scx.scx_trans, &scx.scx_area, &editArea);
DBAdjustLabels(EditCellUse->cu_def, &editArea);
DBWAreaChanged(EditCellUse->cu_def, &editArea, DBW_ALLWINDOWS,
(TileTypeBitMask *) NULL);
DRCCheckThis(EditCellUse->cu_def, TT_CHECKPAINT, &editArea);
DBReComputeBbox(EditCellUse->cu_def);
}
/*
* ----------------------------------------------------------------------------
*
* SelectAndCopy2 --
*
* This procedure is intended for use only within the selection
* module. It takes what's in Select2Def, makes a copy of it in the
* edit cell, and makes the copy the selection. It's used, for
* example, by the transformation and copying routines.
*
* Results:
* None.
*
* Side effects:
* The selection is augmented with what's in Select2Def. The caller
* should normally have cleared the selection before calling us.
* The edit cell is modified to include everything that was in
* Select2Def.
*
* ----------------------------------------------------------------------------
*/
void
SelectAndCopy2(newSourceDef)
CellDef *newSourceDef; /* The new selection is to be
* associated with this cell in the
* user's layout.
*/
{
SearchContext scx;
Rect editArea, labelArea, expanded;
int plane;
int (*savedPaintPlane)();
extern int selACPaintFunc(); /* Forward reference. */
extern int selACCellFunc();
/* Just copy the information in Select2Def twice, once into the
* edit cell and once into the main selection cell.
*/
scx.scx_use = Select2Use;
scx.scx_area = Select2Use->cu_bbox;
scx.scx_trans = RootToEditTransform;
savedPaintPlane = DBNewPaintPlane(DBPaintPlaneActive);
(void) DBCellCopyAllPaint(&scx, &DBAllButSpaceAndDRCBits, CU_DESCEND_SPECIAL,
EditCellUse);
DBNewPaintPlane(savedPaintPlane);
(void) DBCellCopyAllLabels(&scx, &DBAllTypeBits, CU_DESCEND_SPECIAL, EditCellUse,
(Rect *) NULL);
(void) DBCellCopyAllCells(&scx, CU_DESCEND_SPECIAL, EditCellUse, (Rect *) NULL);
GeoTransRect(&scx.scx_trans, &scx.scx_area, &editArea);
DBAdjustLabels(EditCellUse->cu_def, &editArea);
DBWAreaChanged(EditCellUse->cu_def, &editArea, DBW_ALLWINDOWS,
(TileTypeBitMask *) NULL);
DRCCheckThis(EditCellUse->cu_def, TT_CHECKPAINT, &editArea);
DBReComputeBbox(EditCellUse->cu_def);
SelectRootDef = newSourceDef;
SelSetDisplay(SelectUse, SelectRootDef);
SelRememberForUndo(TRUE, (CellDef *) NULL, (Rect *) NULL);
scx.scx_trans = GeoIdentityTransform;
/* In copying stuff into SelectUse, we have to be careful. The problem
* is that the stuff now in the edit cell may have switched layers.
* (for example, Select2Def might have diff, which got painted
* over poly in the edit cell to form transistor). As a result, we
* use Select2Def to figure out what areas of what planes to put into
* SelectUse, but use the actual tile types from the edit cell.
*/
for (plane = PL_SELECTBASE; plane < DBNumPlanes; plane++)
{
(void) DBSrPaintArea((Tile *) NULL, Select2Def->cd_planes[plane],
&TiPlaneRect, &DBAllButSpaceAndDRCBits, selACPaintFunc,
(ClientData) plane);
DBMergeNMTiles(Select2Def->cd_planes[plane], &TiPlaneRect,
(PaintUndoInfo *)NULL);
}
(void) DBCellCopyAllLabels(&scx, &DBAllTypeBits, CU_DESCEND_SPECIAL,
SelectUse, NULL);
/* We also have to be careful about copying subcells into the
* main selection cell. It might not have been possible to copy
* a subcell into the edit cell (above), because the copying
* would have formed a circularity. In that case, we need to
* drop that subcell from the new selection. The code below just
* copies those that are still in the edit cell.
*/
(void) SelEnumCells(TRUE, (bool *) NULL, &scx, selACCellFunc,
(ClientData) NULL);
DBReComputeBbox(SelectDef);
DBComputeUseBbox(SelectUse);
/* A little hack here: don't do explicit redisplay of the selection,
* or record a very large redisplay area for undo-ing. It's not
* necessary since the layout redisplay also redisplays the highlights.
* If we do it too, then we're just double-displaying and wasting
* time. (note: must record something for undo-ing in order to get
* SelectRootDef set right... just don't pass a redisplay area).
*/
SelRememberForUndo(FALSE, SelectRootDef, (Rect *) NULL);
DBWAreaChanged(SelectDef, &SelectDef->cd_extended, DBW_ALLWINDOWS,
(TileTypeBitMask *) NULL);
}
/* Structure to hold information about an edit area, which may be
* a triangular region.
*/
typedef struct {
Rect *editClip;
TileType ttype;
} acparg;
/* Utility function: for each tile, copy information over its area from
* the given edit cell plane to SelectDef. Always return 0 to keep the
* search alive.
*/
int
selACPaintFunc(tile, plane)
Tile *tile; /* Tile in Select2Def. */
int plane; /* Index of plane this tile came from. */
{
Rect area, editArea;
acparg selACarg;
int selACPaintFunc2(); /* Forward reference. */
TiToRect(tile, &area);
/* we want editClip in root coordinates. . . */
selACarg.editClip = &area;
GeoTransRect(&RootToEditTransform, &area, &editArea);
selACarg.ttype = TiGetTypeExact(tile);
if (IsSplit(tile))
{
DBSrPaintNMArea((Tile *) NULL, EditCellUse->cu_def->cd_planes[plane],
selACarg.ttype, &editArea, &DBAllButSpaceAndDRCBits,
selACPaintFunc2, (ClientData) &selACarg);
}
else
(void) DBSrPaintArea((Tile *) NULL, EditCellUse->cu_def->cd_planes[plane],
&editArea, &DBAllButSpaceAndDRCBits, selACPaintFunc2,
(ClientData) &selACarg);
return 0;
}
/* Second-level paint function: just paint the overlap between
* tile and editClip into SelectDef.
*
* This function is like dbCopyAllPaint() but differs just enough
* that a separate function is required. However, much of the code
* could be shared between the two functions if it were properly
* broken out into subroutines.
*/
int
selACPaintFunc2(tile, selACarg)
Tile *tile; /* Tile in edit cell. */
acparg *selACarg; /* Contains edit-cell area to clip to
* before painting into selection.
*/
{
Rect *editClip = selACarg->editClip;
Rect area, selArea;
TileType type = TiGetTypeExact(tile);
TileTypeBitMask tmask, *rmask;
TileType ttype, rtype;
TileType dinfo = selACarg->ttype & (TT_DIAGONAL | TT_DIRECTION | TT_SIDE);
TiToRect(tile, &area);
GeoTransRect(&EditToRootTransform, &area, &selArea);
if ((dinfo & TT_DIAGONAL) || (type & TT_DIAGONAL))
{
/* If the select area is triangular, then we need to */
/* clip in a more complicated manner. */
/* Likewise if the edit cell tile is triangular and */
/* the select area not. */
Point points[5];
Rect rrect, orect;
int np, i, j;
ttype = (selACarg->ttype & TT_SIDE) ? ((selACarg->ttype & TT_RIGHTMASK) >> 14) :
selACarg->ttype & TT_LEFTMASK;
if (type & TT_DIAGONAL)
rtype = (type & TT_SIDE) ? SplitRightType(tile) :
SplitLeftType(tile);
else
rtype = type;
if (rtype >= DBNumUserLayers)
{
rmask = DBResidueMask(rtype);
if (TTMaskHasType(rmask, ttype))
rtype = ttype;
}
TTMaskSetOnlyType(&tmask, rtype);
type = (dinfo & TT_SIDE) ? (rtype << 14) : rtype;
type |= dinfo;
if (dinfo & TT_DIAGONAL)
GrClipTriangle(editClip, &selArea, TRUE, dinfo, points, &np);
else
GrClipTriangle(&selArea, editClip, TRUE, type, points, &np);
if (np == 0)
return 0;
if (np >= 3)
{
for (i = 0; i < np; i++)
{
j = (i + 1) % np;
if (points[i].p_x != points[j].p_x && points[i].p_y !=
points[j].p_y)
{
/* Break out the triangle */
rrect.r_xbot = points[i].p_x;
rrect.r_xtop = points[j].p_x;
rrect.r_ybot = points[i].p_y;
rrect.r_ytop = points[j].p_y;
GeoCanonicalRect(&rrect, &selArea);
break;
}
}
if (i == np) /* Exactly one Manhattan rectangle */
{
rrect.r_xbot = points[0].p_x;
rrect.r_xtop = points[2].p_x;
rrect.r_ybot = points[0].p_y;
rrect.r_ytop = points[2].p_y;
GeoCanonicalRect(&rrect, &selArea);
type = rtype;
}
else if (np >= 4) /* Process extra rectangles in the area */
{
/* "orect" is the bounding box of the polygon returned */
/* by ClipTriangle. */
orect.r_xtop = orect.r_xbot = points[0].p_x;
orect.r_ytop = orect.r_ybot = points[0].p_y;
for (i = 0; i < np; i++)
GeoIncludePoint(&points[i], &orect);
/* Rectangle to left or right */
rrect.r_ybot = orect.r_ybot;
rrect.r_ytop = orect.r_ytop;
if (selArea.r_xbot > orect.r_xbot)
{
rrect.r_xbot = orect.r_xbot;
rrect.r_xtop = selArea.r_xbot;
}
else if (selArea.r_xtop < orect.r_xtop)
{
rrect.r_xtop = orect.r_xtop;
rrect.r_xbot = selArea.r_xtop;
}
else
goto topbottom;
DBPaintValid(SelectDef, &rrect, &tmask, 0);
topbottom:
/* Rectangle to top or bottom */
rrect.r_xbot = selArea.r_xbot;
rrect.r_xtop = selArea.r_xtop;
if (selArea.r_ybot > orect.r_ybot)
{
rrect.r_ybot = orect.r_ybot;
rrect.r_ytop = selArea.r_ybot;
}
else if (selArea.r_ytop < orect.r_ytop)
{
rrect.r_ytop = orect.r_ytop;
rrect.r_ybot = selArea.r_ytop;
}
else
goto splitdone;
DBPaintValid(SelectDef, &rrect, &tmask, 0);
}
}
}
else
{
ttype = selACarg->ttype;
if (type & TT_DIAGONAL)
rtype = (type & TT_SIDE) ? SplitRightType(tile) : SplitLeftType(tile);
else
rtype = type;
if (rtype >= DBNumUserLayers)
{
rmask = DBResidueMask(rtype);
if (TTMaskHasType(rmask, ttype))
rtype = ttype;
}
TTMaskSetOnlyType(&tmask, rtype);
}
GeoClip(&selArea, editClip); /* editClip already in root coords */
splitdone:
DBPaintValid(SelectDef, &selArea, &tmask, type);
return 0;
}
/* Cell search function: invoked for each subcell in Select2Def that's
* also in the edit cell. Make a copy of the cell in SelectDef.
*/
int
selACCellFunc(selUse, realUse)
CellUse *selUse; /* Use to be copied into SelectDef. This
* is the instance inside Select2Def.
*/
CellUse *realUse; /* The cellUse (in the edit cell) corresponding
* to selUse. We need this in order to use its
* instance id and expand mask in the selection.
*/
{
CellUse *newUse;
newUse = DBCellNewUse(selUse->cu_def, realUse->cu_id);
if (!DBLinkCell(newUse, SelectDef))
{
freeMagic((char *) newUse->cu_id);
newUse->cu_id = NULL;
(void) DBLinkCell(newUse, SelectDef);
}
newUse->cu_expandMask = realUse->cu_expandMask;
newUse->cu_flags = realUse->cu_flags;
DBSetArray(selUse, newUse);
DBSetTrans(newUse, &selUse->cu_transform);
DBPlaceCell(newUse, SelectDef);
return 0;
}
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