fontforge-20201107/fontforge/fontviewbase.c

/* -*- coding: utf-8 -*- */
/* Copyright (C) 2000-2012 by George Williams */
/*
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:

 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.

 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.

 * The name of the author may not be used to endorse or promote products
 * derived from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <fontforge-config.h>

#include "autohint.h"
#include "autosave.h"
#include "baseviews.h"
#include "bitmapchar.h"
#include "bvedit.h"
#include "chardata.h"
#include "cvundoes.h"
#include "encoding.h"
#include "fontforge.h"
#include "fvcomposite.h"
#include "fvfonts.h"
#include "gfile.h"
#include "gio.h"
#include "gresource.h"
#include "groups.h"
#include "namelist.h"
#include "psfont.h"
#include "pua.h"
#include "scripting.h"
#include "sfd.h"
#include "spiro.h"
#include "splineoverlap.h"
#include "splinesaveafm.h"
#include "splineutil.h"
#include "splineutil2.h"
#include "ustring.h"
#include "utype.h"

#include <math.h>
#include <unistd.h>

static FontViewBase *fv_list=NULL;

extern int onlycopydisplayed;
float joinsnap=0;

static int SCUnselectedDependents(FontViewBase *fv, SplineChar *sc) {
    struct splinecharlist *dep;

    if ( sc == NULL )
return( false );

    for ( dep=sc->dependents; dep!=NULL; dep=dep->next ) {
	if ( !fv->selected[fv->map->backmap[dep->sc->orig_pos]] )
return( true );
	if ( SCUnselectedDependents(fv,dep->sc))
return( true );
    }
return( false );
}

static int BCUnselectedDependents(FontViewBase *fv, BDFChar *bc) {
    struct bdfcharlist *dep;

    if ( bc == NULL )
return( false );

    for ( dep=bc->dependents; dep!=NULL; dep=dep->next ) {
	if ( !fv->selected[fv->map->backmap[dep->bc->orig_pos]] )
return( true );
	if ( BCUnselectedDependents(fv,dep->bc))
return( true );
    }
return( false );
}

static int UnselectedDependents(FontViewBase *fv,int gid) {
    int ret = false;
    BDFFont *bdf;

    if ( onlycopydisplayed && fv->active_bitmap == NULL ) {
	ret = SCUnselectedDependents( fv,fv->sf->glyphs[gid] );
    } else if ( onlycopydisplayed ) {
	ret = BCUnselectedDependents( fv,fv->active_bitmap->glyphs[gid] );
    } else {
	ret = SCUnselectedDependents( fv,fv->sf->glyphs[gid] );
	for ( bdf=fv->sf->cidmaster?fv->sf->cidmaster->bitmaps:fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next )
	    ret |= BCUnselectedDependents( fv,bdf->glyphs[gid] );
    }
return( ret );
}

void FVClear(FontViewBase *fv) {
    int i;
    BDFFont *bdf;
    int refstate = 0;
    char *buts[6];
    int yes, unsel, gid;
    /* refstate==0 => ask, refstate==1 => clearall, refstate==-1 => skip all */

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] && (gid=fv->map->map[i])!=-1 ) {
	/* If we are messing with the outline character, check for dependencies */
	if ( refstate<=0 && ( unsel = UnselectedDependents( fv,gid ))) {
	    if ( refstate==0 ) {
		buts[0] = _("_Yes");
		buts[1] = _("Yes to _All");
		buts[2] = _("_Unlink All");
		buts[3] = _("No _to All");
		buts[4] = _("_No");
		buts[5] = NULL;
		yes = ff_ask(_("Bad Reference"),(const char **) buts,2,4,_("You are attempting to clear %.30s which is referred to by\nanother character. Are you sure you want to clear it?"),fv->sf->glyphs[gid]->name);
		if ( yes==1 )
		    refstate = 1;
		else if ( yes==2 )
		    refstate = -2;
		else if ( yes==3 )
		    refstate = -1;
		else if ( yes==4 )
    continue;
	    }
	    if ( refstate==-2 ) {
		if ( onlycopydisplayed && fv->active_bitmap == NULL )
		    UnlinkThisReference( fv,fv->sf->glyphs[gid],fv->active_layer );
		else if ( onlycopydisplayed && fv->active_bitmap != NULL )
		    BCUnlinkThisReference( fv,fv->active_bitmap->glyphs[gid] );
		else {
		    UnlinkThisReference(fv,fv->sf->glyphs[gid],fv->active_layer);
		    for ( bdf=fv->sf->cidmaster?fv->sf->cidmaster->bitmaps:fv->sf->bitmaps; bdf!=NULL; bdf = bdf->next )
			BCUnlinkThisReference( fv,bdf->glyphs[gid] );
		}
	    } else if ( refstate == -1 )
    continue;
	}

	if ( onlycopydisplayed && fv->active_bitmap==NULL ) {
	    SCClearAll(fv->sf->glyphs[gid],fv->active_layer);
	} else if ( onlycopydisplayed ) {
	    BCClearAll(fv->active_bitmap->glyphs[gid]);
	} else {
	    SCClearAll(fv->sf->glyphs[gid],fv->active_layer);
	    for ( bdf=fv->sf->cidmaster?fv->sf->cidmaster->bitmaps:fv->sf->bitmaps; bdf!=NULL; bdf = bdf->next )
		BCClearAll(bdf->glyphs[gid]);
	}
    }
}

void FVClearBackground(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    int i, gid;

    if ( onlycopydisplayed && fv->active_bitmap!=NULL )
return;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && sf->glyphs[gid]!=NULL ) {
	SCClearBackground(sf->glyphs[gid]);
    }
}

void FVCopyFgtoBg(FontViewBase *fv) {
    int i, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		fv->sf->glyphs[gid]!=NULL )
	    SCCopyLayerToLayer(fv->sf->glyphs[gid],fv->active_layer,ly_back,true);
}

void FVUnlinkRef(FontViewBase *fv) {
    int i,layer, first, last, gid;
    SplineChar *sc;
    RefChar *rf, *next;
    BDFFont *bdf;
    BDFChar *bdfc;
    BDFRefChar *head, *cur;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && (sc = fv->sf->glyphs[gid])!=NULL) {
	if (( fv->active_bitmap==NULL || !onlycopydisplayed ) &&
		sc->layers[fv->active_layer].refs!=NULL) {
	    SCPreserveLayer(sc,fv->active_layer,false);
	    if ( sc->parent->multilayer ) {
		first = ly_fore;
		last = sc->layer_cnt-1;
	    } else
		first = last = fv->active_layer;
	    for ( layer=first; layer<=last; ++layer ) {
		for ( rf=sc->layers[layer].refs; rf!=NULL ; rf=next ) {
		    next = rf->next;
		    SCRefToSplines(sc,rf,layer);
		}
	    }
	    SCCharChangedUpdate( sc,fv->active_layer );
	}

	for ( bdf = fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next ) {
	    if ( bdf != fv->active_bitmap && onlycopydisplayed )
	continue;

	    bdfc = gid==-1 || gid>=bdf->glyphcnt? NULL : bdf->glyphs[gid];
	    if ( bdfc != NULL && bdfc->refs != NULL ) {
		BCMergeReferences( bdfc,bdfc,0,0 );
		for ( head = bdfc->refs; head != NULL; ) {
		    cur = head; head = cur->next; free( cur );
		}
		bdfc->refs = NULL;
		BCCharChangedUpdate(bdfc);
	    }
	}
    }
}

void FVUndo(FontViewBase *fv) {
    int i,j,layer,first,last, gid;
    MMSet *mm = fv->sf->mm;
    int was_blended = mm!=NULL && mm->normal==fv->sf;
    BDFFont *bdf;
    BDFChar *bdfc;

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		fv->sf->glyphs[gid]!=NULL && !fv->sf->glyphs[gid]->ticked) {
	    if ( fv->active_bitmap==NULL || !onlycopydisplayed ) {
		SplineChar *sc = fv->sf->glyphs[gid];
		if ( sc->parent->multilayer ) {
		    first = ly_fore;
		    last = sc->layer_cnt-1;
		} else
		    first = last = fv->active_layer;
		for ( layer=first; layer<=last; ++layer ) {
		    if ( sc->layers[layer].undoes!=NULL ) {
			SCDoUndo(sc,layer);
			if ( was_blended ) {
			    for ( j=0; j<mm->instance_count; ++j )
				SCDoUndo(mm->instances[j]->glyphs[gid],layer);
			}
		    }
		}
		sc->ticked = true;
	    }
	    for ( bdf=fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next ) {
		if ( bdf != fv->active_bitmap && onlycopydisplayed )
	    continue;

	    	bdfc = bdf->glyphs[gid];
	    	if ( bdfc != NULL && bdfc->undoes != NULL )
	    	    BCDoUndo( bdfc );
	    }
	}
}

void FVRedo(FontViewBase *fv) {
    int i,j,layer,first,last, gid;
    MMSet *mm = fv->sf->mm;
    int was_blended = mm!=NULL && mm->normal==fv->sf;
    BDFFont *bdf;
    BDFChar *bdfc;

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		fv->sf->glyphs[gid]!=NULL && !fv->sf->glyphs[gid]->ticked) {
	    if ( fv->active_bitmap==NULL || !onlycopydisplayed ) {
		SplineChar *sc = fv->sf->glyphs[gid];
		if ( sc->parent->multilayer ) {
		    first = ly_fore;
		    last = sc->layer_cnt-1;
		} else
		    first = last = fv->active_layer;
		for ( layer=first; layer<=last; ++layer ) {
		    if ( sc->layers[layer].redoes!=NULL ) {
			SCDoRedo(sc,layer);
			if ( was_blended ) {
			    for ( j=0; j<mm->instance_count; ++j )
				SCDoRedo(mm->instances[j]->glyphs[gid],layer);
			}
		    }
		}
		sc->ticked = true;
	    }
	    for ( bdf=fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next ) {
		if ( bdf != fv->active_bitmap && onlycopydisplayed )
	    continue;

	    	bdfc = bdf->glyphs[gid];
	    	if ( bdfc != NULL && bdfc->redoes != NULL )
	    	    BCDoRedo( bdfc );
	    }
	}
}

void FVJoin(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    int i,changed,gid;

    if ( onlycopydisplayed && fv->active_bitmap!=NULL )
return;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && sf->glyphs[gid]!=NULL ) {
	SCPreserveLayer(sf->glyphs[gid],fv->active_layer,false);
	sf->glyphs[gid]->layers[fv->active_layer].splines = SplineSetJoin(sf->glyphs[gid]->layers[fv->active_layer].splines,true,joinsnap,&changed);
	if ( changed )
	    SCCharChangedUpdate(sf->glyphs[gid],fv->active_layer);
    }
}

static void LinkEncToGid(FontViewBase *fv,int enc, int gid) {
    EncMap *map = fv->map;
    int old_gid;
    int flags = -1;
    int j;

    if ( map->map[enc]!=-1 && map->map[enc]!=gid ) {
	SplineFont *sf = fv->sf;
	old_gid = map->map[enc];
	for ( j=0; j<map->enccount; ++j )
	    if ( j!=enc && map->map[j]==old_gid )
	break;
	/* If the glyph is used elsewhere in the encoding then reusing this */
	/* slot causes no problems */
	if ( j==map->enccount ) {
	    /* However if this is the only use and the glyph is interesting */
	    /*  then add it to the unencoded area. If it is uninteresting we*/
	    /*  can just get rid of it */
	    if ( SCWorthOutputting(sf->glyphs[old_gid]) )
		SFAddEncodingSlot(sf,old_gid);
	    else
		SFRemoveGlyph(sf,sf->glyphs[old_gid]);
	}
    }
    map->map[enc] = gid;
    if ( map->backmap[gid]==-1 )
	map->backmap[gid] = enc;
    if ( map->enc!=&custom ) {
	int uni = UniFromEnc(enc,map->enc);
	AltUniAdd(fv->sf->glyphs[gid],uni);
    }
}

void FVSameGlyphAs(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    RefChar *base = CopyContainsRef(sf);
    int i;
    EncMap *map = fv->map;

    if ( base==NULL || fv->cidmaster!=NULL )
return;
    for ( i=0; i<map->enccount; ++i ) if ( fv->selected[i] ) {
	LinkEncToGid(fv,i,base->orig_pos);
    }
}

void FVBuildDuplicate(FontViewBase *fv) {
    const int *pua = fv->sf->uni_interp==ui_trad_chinese ? cns14pua : fv->sf->uni_interp==ui_ams ? amspua : NULL;
    int i, cnt=0, gid;
    SplineChar dummy;
    const unichar_t *pt;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] )
	++cnt;
    ff_progress_start_indicator(10,_("Building duplicate encodings"),
	_("Building duplicate encodings"),NULL,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] ) {
	SplineChar *sc;
	int baseuni = 0;
	if ( (gid = fv->map->map[i])==-1 || (sc = fv->sf->glyphs[gid])==NULL )
	    sc = SCBuildDummy(&dummy,fv->sf,fv->map,i);
	if ( pua!=NULL && sc->unicodeenc>=0xe000 && sc->unicodeenc<=0xf8ff )
	    baseuni = pua[sc->unicodeenc-0xe000];
	if ( baseuni==0 && ( pt = SFGetAlternate(fv->sf,sc->unicodeenc,sc,false))!=NULL &&
		pt[0]!='\0' && pt[1]=='\0' )
	    baseuni = pt[0];

	if ( baseuni!=0 && (gid = SFFindExistingSlot(fv->sf,baseuni,NULL))!=-1 )
	    LinkEncToGid(fv,i,gid);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void TransHints(StemInfo *stem,real mul1, real off1, real mul2, real off2, int round_to_int ) {
    HintInstance *hi;

    for ( ; stem!=NULL; stem=stem->next ) {
	stem->start = stem->start*mul1 + off1;
	stem->width *= mul1;
	if ( round_to_int ) {
	    stem->start = rint(stem->start);
	    stem->width = rint(stem->width);
	}
	if ( mul1<0 ) {
	    stem->start += stem->width;
	    stem->width = -stem->width;
	}
	for ( hi=stem->where; hi!=NULL; hi=hi->next ) {
	    hi->begin = hi->begin*mul2 + off2;
	    hi->end = hi->end*mul2 + off2;
	    if ( round_to_int ) {
		hi->begin = rint(hi->begin);
		hi->end = rint(hi->end);
	    }
	    if ( mul2<0 ) {
		double temp = hi->begin;
		hi->begin = hi->end;
		hi->end = temp;
	    }
	}
    }
}

/* added by akryukov 01/01/2008 to enable resizing and flipping DStem hints */
void TransDStemHints( DStemInfo *ds,real xmul,real xoff,real ymul,real yoff,int round_to_int ) {
    HintInstance *hi;
    double dmul, temp;

    for ( ; ds!=NULL; ds=ds->next ) {
	ds->left.x = xmul*ds->left.x + xoff;
	ds->left.y = ymul*ds->left.y + yoff;
	ds->right.x = xmul*ds->right.x + xoff;
	ds->right.y = ymul*ds->right.y + yoff;
	if ( round_to_int ) {
	    ds->left.x = rint( ds->left.x );
            ds->left.y = rint( ds->left.y );
	    ds->right.x = rint( ds->right.x );
            ds->right.y = rint( ds->right.y );
	}

	if (( xmul < 0 && ymul > 0 ) || ( xmul > 0 && ymul < 0 ))
	    ds->unit.y = -ds->unit.y;
        ds->unit.x *= fabs( xmul ); ds->unit.y *= fabs( ymul );
        dmul = sqrt( pow( ds->unit.x,2 ) + pow( ds->unit.y,2 ));
        ds->unit.x /= dmul; ds->unit.y /= dmul;
        if ( xmul < 0 ) dmul = -dmul;

	for ( hi=ds->where; hi!=NULL; hi=hi->next ) {
	    if ( dmul > 0 ) {
	        hi->begin = hi->begin * dmul;
	        hi->end = hi->end * dmul;
            } else {
                temp = hi->begin;
	        hi->begin = hi->end * dmul;
	        hi->end = temp * dmul;
            }
	}
    }
}

void VrTrans(struct vr *vr,real transform[6]) {
    /* I'm interested in scaling and skewing. I think translation should */
    /*  not affect these guys (they are offsets, so offsets should be */
    /*  unchanged by translation */
    double x,y;

    x = vr->xoff; y=vr->yoff;
    vr->xoff = rint(transform[0]*x + transform[1]*y);
    vr->yoff = rint(transform[2]*x + transform[3]*y);
    x = vr->h_adv_off; y=vr->v_adv_off;
    vr->h_adv_off = rint(transform[0]*x + transform[1]*y);
    vr->v_adv_off = rint(transform[2]*x + transform[3]*y);
}

void BackgroundImageTransform(SplineChar *sc, ImageList *img,real transform[6]) {
    if ( transform[1]==0 && transform[2]==0 && transform[0]>0 && transform[3]>0 ) {
	img->xoff = transform[0]*img->xoff + transform[4];
	img->yoff = transform[3]*img->yoff + transform[5];
	if (( img->xscale *= transform[0])<0 ) img->xscale = -img->xscale;
	if (( img->yscale *= transform[3])<0 ) img->yscale = -img->yscale;
	img->bb.minx = img->xoff; img->bb.maxy = img->yoff;
	img->bb.maxx = img->xoff + GImageGetWidth(img->image)*img->xscale;
	img->bb.miny = img->yoff - GImageGetHeight(img->image)*img->yscale;
    } else {
	/* Don't support rotating, flipping or skewing images */
	;
    }
    SCOutOfDateBackground(sc);
}

static void GV_Trans(struct glyphvariants *gv,real transform[6], int is_v) {
    int i;

    if ( gv==NULL )
return;
    gv->italic_correction = rint(gv->italic_correction*transform[0]);
    is_v = 3*is_v;
    for ( i=0; i<gv->part_cnt; ++i ) {
	gv->parts[i].startConnectorLength = rint( gv->parts[i].startConnectorLength*transform[is_v] );
	gv->parts[i].endConnectorLength = rint( gv->parts[i].endConnectorLength*transform[is_v] );
	gv->parts[i].fullAdvance = rint( gv->parts[i].fullAdvance*transform[is_v] );
    }
}

static void MKV_Trans(struct mathkernvertex *mkv,real transform[6]) {
    int i;

    for ( i=0; i<mkv->cnt; ++i ) {
	mkv->mkd[i].kern  = rint( mkv->mkd[i].kern  *transform[0]);
	mkv->mkd[i].height= rint( mkv->mkd[i].height*transform[0]);
    }
}

static void MK_Trans(struct mathkern *mk,real transform[6]) {
    if ( mk==NULL )
return;
    MKV_Trans(&mk->top_right,transform);
    MKV_Trans(&mk->top_left ,transform);
    MKV_Trans(&mk->bottom_right,transform);
    MKV_Trans(&mk->bottom_left ,transform);
}

static void MATH_Trans(struct MATH *math,real transform[6]) {
    if ( math==NULL )
return;
    math->DelimitedSubFormulaMinHeight = rint( math->DelimitedSubFormulaMinHeight*transform[3]);
    math->DisplayOperatorMinHeight = rint( math->DisplayOperatorMinHeight*transform[3]);
    math->MathLeading = rint( math->MathLeading*transform[3]);
    math->AxisHeight = rint( math->AxisHeight*transform[3]);
    math->AccentBaseHeight = rint( math->AccentBaseHeight*transform[3]);
    math->FlattenedAccentBaseHeight = rint( math->FlattenedAccentBaseHeight*transform[3]);
    math->SubscriptShiftDown = rint( math->SubscriptShiftDown*transform[3]);
    math->SubscriptTopMax = rint( math->SubscriptTopMax*transform[3]);
    math->SubscriptBaselineDropMin = rint( math->SubscriptBaselineDropMin*transform[3]);
    math->SuperscriptShiftUp = rint( math->SuperscriptShiftUp*transform[3]);
    math->SuperscriptShiftUpCramped = rint( math->SuperscriptShiftUpCramped*transform[3]);
    math->SuperscriptBottomMin = rint( math->SuperscriptBottomMin*transform[3]);
    math->SuperscriptBaselineDropMax = rint( math->SuperscriptBaselineDropMax*transform[3]);
    math->SubSuperscriptGapMin = rint( math->SubSuperscriptGapMin*transform[3]);
    math->SuperscriptBottomMaxWithSubscript = rint( math->SuperscriptBottomMaxWithSubscript*transform[3]);
    /* SpaceAfterScript is horizontal and is below */
    math->UpperLimitGapMin = rint( math->UpperLimitGapMin*transform[3]);
    math->UpperLimitBaselineRiseMin = rint( math->UpperLimitBaselineRiseMin*transform[3]);
    math->LowerLimitGapMin = rint( math->LowerLimitGapMin*transform[3]);
    math->LowerLimitBaselineDropMin = rint( math->LowerLimitBaselineDropMin*transform[3]);
    math->StackTopShiftUp = rint( math->StackTopShiftUp*transform[3]);
    math->StackTopDisplayStyleShiftUp = rint( math->StackTopDisplayStyleShiftUp*transform[3]);
    math->StackBottomShiftDown = rint( math->StackBottomShiftDown*transform[3]);
    math->StackBottomDisplayStyleShiftDown = rint( math->StackBottomDisplayStyleShiftDown*transform[3]);
    math->StackGapMin = rint( math->StackGapMin*transform[3]);
    math->StackDisplayStyleGapMin = rint( math->StackDisplayStyleGapMin*transform[3]);
    math->StretchStackTopShiftUp = rint( math->StretchStackTopShiftUp*transform[3]);
    math->StretchStackBottomShiftDown = rint( math->StretchStackBottomShiftDown*transform[3]);
    math->StretchStackGapAboveMin = rint( math->StretchStackGapAboveMin*transform[3]);
    math->StretchStackGapBelowMin = rint( math->StretchStackGapBelowMin*transform[3]);
    math->FractionNumeratorShiftUp = rint( math->FractionNumeratorShiftUp*transform[3]);
    math->FractionNumeratorDisplayStyleShiftUp = rint( math->FractionNumeratorDisplayStyleShiftUp*transform[3]);
    math->FractionDenominatorShiftDown = rint( math->FractionDenominatorShiftDown*transform[3]);
    math->FractionDenominatorDisplayStyleShiftDown = rint( math->FractionDenominatorDisplayStyleShiftDown*transform[3]);
    math->FractionNumeratorGapMin = rint( math->FractionNumeratorGapMin*transform[3]);
    math->FractionNumeratorDisplayStyleGapMin = rint( math->FractionNumeratorDisplayStyleGapMin*transform[3]);
    math->FractionRuleThickness = rint( math->FractionRuleThickness*transform[3]);
    math->FractionDenominatorGapMin = rint( math->FractionDenominatorGapMin*transform[3]);
    math->FractionDenominatorDisplayStyleGapMin = rint( math->FractionDenominatorDisplayStyleGapMin*transform[3]);
    /* SkewedFractionHorizontalGap is horizontal and is below */
    math->SkewedFractionVerticalGap = rint( math->SkewedFractionVerticalGap*transform[3]);
    math->OverbarVerticalGap = rint( math->OverbarVerticalGap*transform[3]);
    math->OverbarRuleThickness = rint( math->OverbarRuleThickness*transform[3]);
    math->OverbarExtraAscender = rint( math->OverbarExtraAscender*transform[3]);
    math->UnderbarVerticalGap = rint( math->UnderbarVerticalGap*transform[3]);
    math->UnderbarRuleThickness = rint( math->UnderbarRuleThickness*transform[3]);
    math->UnderbarExtraDescender = rint( math->UnderbarExtraDescender*transform[3]);
    math->RadicalVerticalGap = rint( math->RadicalVerticalGap*transform[3]);
    math->RadicalDisplayStyleVerticalGap = rint( math->RadicalDisplayStyleVerticalGap*transform[3]);
    math->RadicalRuleThickness = rint( math->RadicalRuleThickness*transform[3]);
    math->RadicalExtraAscender = rint( math->RadicalExtraAscender*transform[3]);
    math->RadicalDegreeBottomRaisePercent = rint( math->RadicalDegreeBottomRaisePercent*transform[3]);

    /* Horizontals */
    math->SpaceAfterScript = rint( math->SpaceAfterScript*transform[0]);
    math->SkewedFractionHorizontalGap = rint( math->SkewedFractionHorizontalGap*transform[0]);
    math->RadicalKernBeforeDegree = rint( math->RadicalKernBeforeDegree*transform[0]);
    math->RadicalKernAfterDegree = rint( math->RadicalKernAfterDegree*transform[0]);

    /* This number is the same for both horizontal and vertical connections */
    /*  Use the vertical amount as a) will probably be the same and */
    /*   b) most are vertical anyway */
    math->RadicalKernAfterDegree = rint( math->RadicalKernAfterDegree*transform[0]);
}

static void KCTrans(KernClass *kc,double scale) {
    /* Again these are offsets, so I don't apply translation */
    int i;

    for ( i=kc->first_cnt*kc->second_cnt-1; i>=0; --i )
	kc->offsets[i] = rint(scale*kc->offsets[i]);
}

static void SCTransLayer(FontViewBase *fv, SplineChar *sc, int flags, int i, real transform[6], uint8 *sel) {
    int j;
    RefChar *refs;
    real t[6];
    ImageList *img;

    SplinePointListTransform(sc->layers[i].splines,transform,tpt_AllPoints);
    for ( refs = sc->layers[i].refs; refs!=NULL; refs=refs->next ) {
	if ( (sel!=NULL && sel[fv->map->backmap[refs->sc->orig_pos]]) ||
		(flags&fvt_partialreftrans)) {
	    /* if the character referred to is selected then it's going to */
	    /*  be scaled too (or will have been) so we don't want to scale */
	    /*  it twice */
	    t[4] = refs->transform[4]*transform[0] +
			refs->transform[5]*transform[2] +
			/*transform[4]*/0;
	    t[5] = refs->transform[4]*transform[1] +
			refs->transform[5]*transform[3] +
			/*transform[5]*/0;
	    t[0] = refs->transform[4]; t[1] = refs->transform[5];
	    refs->transform[4] = t[4];
	    refs->transform[5] = t[5];
	    /* Now update the splines to match */
	    t[4] -= t[0]; t[5] -= t[1];
	    if ( t[4]!=0 || t[5]!=0 ) {
		t[0] = t[3] = 1; t[1] = t[2] = 0;
		for ( j=0; j<refs->layer_cnt; ++j )
		    SplinePointListTransform(refs->layers[j].splines,t,tpt_AllPoints);
	    }
	} else {
	    for ( j=0; j<refs->layer_cnt; ++j )
		SplinePointListTransform(refs->layers[j].splines,transform,tpt_AllPoints);
	    t[0] = refs->transform[0]*transform[0] +
			refs->transform[1]*transform[2];
	    t[1] = refs->transform[0]*transform[1] +
			refs->transform[1]*transform[3];
	    t[2] = refs->transform[2]*transform[0] +
			refs->transform[3]*transform[2];
	    t[3] = refs->transform[2]*transform[1] +
			refs->transform[3]*transform[3];
	    t[4] = refs->transform[4]*transform[0] +
			refs->transform[5]*transform[2] +
			transform[4];
	    t[5] = refs->transform[4]*transform[1] +
			refs->transform[5]*transform[3] +
			transform[5];
	    memcpy(refs->transform,t,sizeof(t));
	}
	RefCharFindBounds(refs);
    }
    for ( img = sc->layers[i].images; img!=NULL; img=img->next )
	BackgroundImageTransform(sc, img, transform);
}

/* If sel is specified then we decide how to transform references based on */
/*  whether the refered glyph is selected. (If we tranform a reference that */
/*  is selected we are, in effect, transforming it twice -- since the glyph */
/*  itself will be transformed -- so instead we just transform the offsets */
/*  of the reference */
/* If sel is NULL then we transform the reference */
/* if flags&fvt_partialreftrans then we always just transform the offsets */
void FVTrans(FontViewBase *fv,SplineChar *sc,real transform[6], uint8 *sel,
	enum fvtrans_flags flags) {
    AnchorPoint *ap;
    int i,first,last;
    KernPair *kp;
    PST *pst;

    if ( sc->blended ) {
	int j;
	MMSet *mm = sc->parent->mm;
	for ( j=0; j<mm->instance_count; ++j )
	    FVTrans(fv,mm->instances[j]->glyphs[sc->orig_pos],transform,sel,flags);
    }

    if (!(flags & fvt_nopreserve)) {
	if ( flags&fvt_alllayers ) {
	    for ( i=0; i<sc->layer_cnt; ++i )
		SCPreserveLayer(sc,i,fv->active_layer==i);
	} else if ( fv->sf->multilayer )
	    SCPreserveState(sc,true);
	else
	    SCPreserveLayer(sc,fv->active_layer,true);
    }
    if ( !(flags&fvt_dontmovewidth) )
	if ( transform[0]>0 && transform[3]>0 && transform[1]==0 && transform[2]==0 ) {
	    int widthset = sc->widthset;
	    SCSynchronizeWidth(sc,sc->width*transform[0]+transform[4],sc->width,fv);
	    if ( !(flags&fvt_dontsetwidth) ) sc->widthset = widthset;
	    sc->vwidth = sc->vwidth*transform[3]+transform[5];
	}
    if ( flags & fvt_scalepstpos ) {
	for ( kp=sc->kerns; kp!=NULL; kp=kp->next )
	    kp->off = rint(kp->off*transform[0]);
	for ( kp=sc->vkerns; kp!=NULL; kp=kp->next )
	    kp->off = rint(kp->off*transform[3]);
	for ( pst = sc->possub; pst!=NULL; pst=pst->next ) {
	    if ( pst->type == pst_position )
		VrTrans(&pst->u.pos,transform);
	    else if ( pst->type==pst_pair ) {
		VrTrans(&pst->u.pair.vr[0],transform);
		VrTrans(&pst->u.pair.vr[1],transform);
	    } else if ( pst->type == pst_lcaret ) {
		int j;
		for ( j=0; j<pst->u.lcaret.cnt; ++j )
		    pst->u.lcaret.carets[j] = rint(pst->u.lcaret.carets[j]*transform[0]+transform[4]);
	    }
	}
    }

    if ( sc->tex_height!=TEX_UNDEF )
	sc->tex_height = rint(sc->tex_height*transform[3]);
    if ( sc->tex_depth !=TEX_UNDEF )
	sc->tex_depth  = rint(sc->tex_depth *transform[3]);
    if ( sc->italic_correction!=TEX_UNDEF )
	sc->italic_correction = rint(sc->italic_correction *transform[0]);
    if ( sc->top_accent_horiz !=TEX_UNDEF )
	sc->top_accent_horiz  = rint(sc->top_accent_horiz *transform[0]);
    GV_Trans(sc->vert_variants ,transform, true);
    GV_Trans(sc->horiz_variants,transform, false);
    MK_Trans(sc->mathkern,transform);

    for ( ap=sc->anchor; ap!=NULL; ap=ap->next )
	ApTransform(ap,transform);
    if ( flags&fvt_alllayers ) {
	first = 0;
	last = sc->layer_cnt-1;
    } else if ( sc->parent->multilayer ) {
	first = ly_fore;
	last = sc->layer_cnt-1;
    } else
	first = last = fv->active_layer;
    for ( i=first; i<=last; ++i )
	SCTransLayer(fv,sc,flags,i,transform,sel);
    if ( transform[1]==0 && transform[2]==0 ) {
	if ( transform[0]==1 && transform[3]==1 &&
		transform[5]==0 && transform[4]!=0 &&
		sc->unicodeenc!=-1 && sc->unicodeenc<0x10000 &&
		isalpha(sc->unicodeenc)) {
	    SCUndoSetLBearingChange(sc,(int) rint(transform[4]));
	    SCSynchronizeLBearing(sc,transform[4],fv->active_layer);	/* this moves the hints */
	} else {
	    TransHints(sc->hstem,transform[3],transform[5],transform[0],transform[4],flags&fvt_round_to_int);
	    TransHints(sc->vstem,transform[0],transform[4],transform[3],transform[5],flags&fvt_round_to_int);
	    TransDStemHints(sc->dstem,transform[0],transform[4],transform[3],transform[5],flags&fvt_round_to_int);
	}
    }
    /*if ( flags&fvt_round_to_int )*/
    if ( (flags&fvt_round_to_int) && (!sc->inspiro || !hasspiro())) {
    	/* Rounding the spiros might be a bad idea. */
	/* Not rounding the spiros is also a bad idea. */
	/* Not sure which is worse */
	/* Barry thinks rounding them is a bad idea. */
	SCRound2Int(sc,fv->active_layer,1.0);
    }
    if ( !(flags&fvt_noupdate) )
	SCCharChangedUpdate(sc,fv->active_layer);
}

void FVTransFunc(void *_fv,real transform[6],int otype, BVTFunc *bvts,
	enum fvtrans_flags flags ) {
    FontViewBase *fv = _fv;
    real transx = transform[4], transy=transform[5];
    DBounds bb;
    BasePoint base;
    int i, cnt=0, gid;
    BDFFont *bdf;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;


    ff_progress_start_indicator(10,_("Transforming..."),_("Transforming..."),0,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 &&
	    SCWorthOutputting(fv->sf->glyphs[gid]) &&
	    !fv->sf->glyphs[gid]->ticked ) {
	SplineChar *sc = fv->sf->glyphs[gid];

	if ( onlycopydisplayed && fv->active_bitmap!=NULL ) {
	    if ( fv->active_bitmap->glyphs[gid]!=NULL )
		BCTrans(fv->active_bitmap,fv->active_bitmap->glyphs[gid],bvts,fv);
	} else {
	    if ( otype==1 ) {
		SplineCharFindBounds(sc,&bb);
		base.x = (bb.minx+bb.maxx)/2;
		base.y = (bb.miny+bb.maxy)/2;
		transform[4]=transx+base.x-
		    (transform[0]*base.x+transform[2]*base.y);
		transform[5]=transy+base.y-
		    (transform[1]*base.x+transform[3]*base.y);
	    }
	    FVTrans(fv,sc,transform,fv->selected,flags);
	    if ( !onlycopydisplayed ) {
		for ( bdf = fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next )
		    if ( gid<bdf->glyphcnt && bdf->glyphs[gid]!=NULL )
			BCTrans(bdf,bdf->glyphs[gid],bvts,fv);
	    }
	}
	sc->ticked = true;
	if ( !ff_progress_next())
    break;
    }
    if ( flags&fvt_dogrid ) {
	SFPreserveGuide(fv->sf);
	SplinePointListTransform(fv->sf->grid.splines,transform,tpt_AllPoints);
    }
    ff_progress_end_indicator();

    if ( flags&fvt_scalekernclasses ) {
	KernClass *kc;
	SplineFont *sf = fv->cidmaster!=NULL ? fv->cidmaster : fv->sf;
	for ( kc=sf->kerns; kc!=NULL; kc=kc->next )
	    KCTrans(kc,transform[0]);
	for ( kc=sf->vkerns; kc!=NULL; kc=kc->next )
	    KCTrans(kc,transform[3]);
	if ( sf->MATH!=NULL )
	    MATH_Trans(sf->MATH,transform);
    }
}

void FVReencode(FontViewBase *fv,Encoding *enc) {
    EncMap *map;

    if ( enc==&custom )
	fv->map->enc = &custom;
    else {
	map = EncMapFromEncoding(fv->sf,enc);
	fv->selected = realloc(fv->selected,map->enccount);
	memset(fv->selected,0,map->enccount);
	EncMapFree(fv->map);
	if (fv->sf != NULL && fv->map == fv->sf->map) { fv->sf->map = map; }
	fv->map = map;
    }
    if ( fv->normal!=NULL ) {
	EncMapFree(fv->normal);
	if (fv->sf != NULL && fv->normal == fv->sf->map) { fv->sf->map = NULL; }
	fv->normal = NULL;
    }
    SFReplaceEncodingBDFProps(fv->sf,fv->map);
    FVSetTitle(fv);
    FontViewReformatOne(fv);
}

void FVOverlap(FontViewBase *fv,enum overlap_type ot) {
    int i, cnt=0, layer, first, last, gid;
    SplineChar *sc;

    /* We know it's more likely that we'll find a problem in the overlap code */
    /*  than anywhere else, so let's save the current state against a crash */
    DoAutoSaves();

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;

    ff_progress_start_indicator(10,_("Removing overlaps..."),_("Removing overlaps..."),0,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 &&
	    SCWorthOutputting((sc=fv->sf->glyphs[gid])) &&
	    !sc->ticked ) {
	sc->ticked = true;
#if 0
	// We await testing on the necessity of this operation.
	if ( !SCRoundToCluster(sc,ly_all,false,.03,.12))
	    SCPreserveLayer(sc,fv->active_layer,false);
#else
	    SCPreserveLayer(sc,fv->active_layer,false);
#endif // 0
	MinimumDistancesFree(sc->md);
	if ( sc->parent->multilayer ) {
	    first = ly_fore;
	    last = sc->layer_cnt-1;
	} else
	    first = last = fv->active_layer;
	for ( layer = first; layer<=last; ++layer )
	    sc->layers[layer].splines = SplineSetRemoveOverlap(sc,sc->layers[layer].splines,ot);
	SCCharChangedUpdate(sc,fv->active_layer);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVAddExtrema(FontViewBase *fv, int force_adding ) {
    int i, cnt=0, layer, first, last, gid;
    SplineChar *sc;
    SplineFont *sf = fv->sf;
    int emsize = sf->ascent+sf->descent;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Adding points at Extrema..."),_("Adding points at Extrema..."),0,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 &&
	    SCWorthOutputting((sc = fv->sf->glyphs[gid])) &&
	    !sc->ticked) {
	sc->ticked = true;
	if ( sc->parent->multilayer ) {
	    first = ly_fore;
	    last = sc->layer_cnt-1;
	} else
	    first = last = fv->active_layer;
	for ( layer = first; layer<=last; ++layer ) {
	    SCPreserveLayer(sc,layer,false);
	    SplineCharAddExtrema(sc, sc->layers[layer].splines,
		force_adding? ae_all : ae_only_good, emsize);
	}
	SCCharChangedUpdate(sc,fv->active_layer);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVCanonicalStart(FontViewBase *fv) {
    int i, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 )
	    SPLsStartToLeftmost(fv->sf->glyphs[gid],fv->active_layer);
}

void FVCanonicalContours(FontViewBase *fv) {
    int i, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 )
	    CanonicalContours(fv->sf->glyphs[gid],fv->active_layer);
}

void FVRound2Int(FontViewBase *fv,real factor) {
    int i, cnt=0, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Rounding to integer..."),_("Rounding to integer..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];

	SCPreserveLayer(sc,fv->active_layer,false);
	SCRound2Int( sc,fv->active_layer,factor);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVCluster(FontViewBase *fv) {
    int i, cnt=0, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Rounding to integer..."),_("Rounding to integer..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SCRoundToCluster(fv->sf->glyphs[gid],ly_all,false,.1,.5);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVCorrectDir(FontViewBase *fv) {
    int i, cnt=0, changed, refchanged, preserved, layer, first, last, gid;
    int askedall=-1, asked;
    RefChar *ref, *next;
    SplineChar *sc;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Correcting Direction..."),_("Correcting Direction..."),0,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting((sc=fv->sf->glyphs[gid])) &&
	    !sc->ticked ) {
	sc->ticked = true;
	changed = refchanged = preserved = false;
	asked = askedall;
	if ( sc->parent->multilayer ) {
	    first = ly_fore;
	    last = sc->layer_cnt-1;
	} else
	    first = last = fv->active_layer;
	for ( layer = first; layer<=last; ++layer ) {
	    for ( ref=sc->layers[layer].refs; ref!=NULL; ref=next ) {
		next = ref->next;
		if ( ref->transform[0]*ref->transform[3]<0 ||
			(ref->transform[0]==0 && ref->transform[1]*ref->transform[2]>0)) {
		    if ( asked==-1 ) {
			char *buts[5];
			buts[0] = _("Unlink All");
			buts[1] = _("Unlink");
			buts[2] = _("_Cancel");
			buts[3] = NULL;
			asked = ff_ask(_("Flipped Reference"),(const char **) buts,0,2,_("%.50s contains a flipped reference. This cannot be corrected as is. Would you like me to unlink it and then correct it?"), sc->name );
			if ( asked==3 )
return;
			else if ( asked==2 )
	    break;
			else if ( asked==0 )
			    askedall = 0;
		    }
		    if ( asked==0 || asked==1 ) {
			if ( !preserved ) {
			    preserved = refchanged = true;
			    SCPreserveLayer(sc,layer,false);
			}
			SCRefToSplines(sc,ref,layer);
		    }
		}
	    }

	    if ( !preserved && sc->layers[layer].splines!=NULL ) {
		SCPreserveLayer(sc,layer,false);
		preserved = true;
	    }
	    sc->layers[layer].splines = SplineSetsCorrect(sc->layers[layer].splines,&changed);
	}
	if ( changed || refchanged )
	    SCCharChangedUpdate(sc,fv->active_layer);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void _FVSimplify(FontViewBase *fv,struct simplifyinfo *smpl) {
    int i, cnt=0, layer, first, last, gid;
    SplineChar *sc;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Simplifying..."),_("Simplifying..."),0,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i )
	if ( (gid=fv->map->map[i])!=-1 && SCWorthOutputting((sc=fv->sf->glyphs[gid])) &&
		fv->selected[i] && !sc->ticked ) {
	    sc->ticked = true;
	    SCPreserveLayer(sc,fv->active_layer,false);
	    if ( sc->parent->multilayer ) {
		first = ly_fore;
		last = sc->layer_cnt-1;
	    } else
		first = last = fv->active_layer;
	    for ( layer = first; layer<=last; ++layer )
		sc->layers[layer].splines = SplineCharSimplify(sc,sc->layers[layer].splines,smpl);
	    SCCharChangedUpdate(sc,fv->active_layer);
	    if ( !ff_progress_next())
    break;
	}
    ff_progress_end_indicator();
}

void FVAutoHint(FontViewBase *fv) {
    int i, cnt=0, gid;
    BlueData *bd = NULL, _bd;
    SplineChar *sc;

    if ( fv->sf->mm==NULL ) {
	QuickBlues(fv->sf,fv->active_layer,&_bd);
	bd = &_bd;
    }

    /* Tick the ones we don't want to AH, untick the ones that need AH */
    for ( gid = 0; gid<fv->sf->glyphcnt; ++gid ) if ( (sc = fv->sf->glyphs[gid])!=NULL )
	sc->ticked = true;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(sc = fv->sf->glyphs[gid]) ) {
	    ++cnt;
	    sc->ticked = false;
	}
    ff_progress_start_indicator(10,_("Auto Hinting Font..."),_("Auto Hinting Font..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	sc = fv->sf->glyphs[gid];
	sc->manualhints = false;
	/* Hint undoes are done in _SplineCharAutoHint */
	SFSCAutoHint(sc,fv->active_layer,bd);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
    FVRefreshAll(fv->sf);
}

void FVAutoHintSubs(FontViewBase *fv) {
    int i, cnt=0, gid;

    if ( fv->sf->mm!=NULL && fv->sf->mm->apple )
return;
    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Finding Substitution Points..."),_("Finding Substitution Points..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];
	SCFigureHintMasks(sc,fv->active_layer);
	SCUpdateAll(sc);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVAutoCounter(FontViewBase *fv) {
    int i, cnt=0, gid;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Finding Counter Masks..."),_("Finding Counter Masks..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];
	SCFigureCounterMasks(sc);
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVDontAutoHint(FontViewBase *fv) {
    int i, gid;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];
	sc->manualhints = true;
    }
}

static int AllGlyphsSelected(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    int gid, enc;
    SplineChar *sc;

    for ( gid=0; gid<sf->glyphcnt; ++gid ) if ( (sc = sf->glyphs[gid])!=NULL )
	sc->ticked = false;

    for ( enc=0; enc<fv->map->enccount; ++enc ) {
	if ( fv->selected[enc] && (gid=fv->map->map[enc])!=-1 &&
		(sc = sf->glyphs[gid])!=NULL )
	    sc->ticked = true;
    }
    for ( gid=0; gid<sf->glyphcnt; ++gid ) if ( (sc = sf->glyphs[gid])!=NULL )
	if ( !sc->ticked )
return( false );

return( true );
}

static int AnySelectedHints(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    int gid, enc;
    SplineChar *sc;

    for ( enc=0; enc<fv->map->enccount; ++enc ) {
	if ( fv->selected[enc] && (gid=fv->map->map[enc])!=-1 &&
		(sc = sf->glyphs[gid])!=NULL &&
		(sc->hstem!=NULL || sc->vstem!=NULL || sc->dstem!=NULL ))
return( true );		/* A glyph with hints! */
    }

return( false );
}

void CIDSetEncMap(FontViewBase *fv, SplineFont *new ) {
    int gcnt = new->glyphcnt;

    if ( fv->cidmaster!=NULL && gcnt!=fv->sf->glyphcnt ) {
	int i;
	if ( fv->map->encmax<gcnt ) {
	    fv->map->map = realloc(fv->map->map,gcnt*sizeof(int32));
	    fv->map->backmap = realloc(fv->map->backmap,gcnt*sizeof(int32));
	    fv->map->backmax = fv->map->encmax = gcnt;
	}
	for ( i=0; i<gcnt; ++i )
	    fv->map->map[i] = fv->map->backmap[i] = i;
	if ( gcnt<fv->map->enccount )
	    memset(fv->selected+gcnt,0,fv->map->enccount-gcnt);
	else {
	    free(fv->selected);
	    fv->selected = calloc(gcnt,sizeof(uint8));
	}
	fv->map->enccount = gcnt;
    }
    fv->sf = new;
    new->fv = fv;
    FVSetTitle(fv);
    FontViewReformatOne(fv);
}

void FVInsertInCID(FontViewBase *fv,SplineFont *sf) {
    SplineFont *cidmaster = fv->cidmaster;
    SplineFont **subs;
    int i;

    subs = malloc((cidmaster->subfontcnt+1)*sizeof(SplineFont *));
    for ( i=0; i<cidmaster->subfontcnt && cidmaster->subfonts[i]!=fv->sf; ++i )
	subs[i] = cidmaster->subfonts[i];
    subs[i] = sf;
    if ( sf->uni_interp == ui_none || sf->uni_interp == ui_unset )
	sf->uni_interp = cidmaster->uni_interp;
    for ( ; i<cidmaster->subfontcnt ; ++i )
	subs[i+1] = cidmaster->subfonts[i];
    ++cidmaster->subfontcnt;
    free(cidmaster->subfonts);
    cidmaster->subfonts = subs;
    cidmaster->changed = true;
    sf->cidmaster = cidmaster;

    CIDSetEncMap( fv,sf);
}

static void ClearFpgmPrepCvt(SplineFont *sf) {
    struct ttf_table *tab, *prev = NULL, *next;

    for ( tab = sf->ttf_tables; tab!=NULL ; tab=next ) {
	next = tab->next;
	if ( tab->tag==CHR('c','v','t',' ') ||
		tab->tag==CHR('f','p','g','m') ||
		tab->tag==CHR('p','r','e','p') ) {
	    if ( prev==NULL )
		sf->ttf_tables = next;
	    else
		prev->next = next;
	    tab->next = NULL;
	    TtfTablesFree(tab);
	} else
	    prev = tab;
    }
}

void FVAutoInstr(FontViewBase *fv) {
    BlueData bd;
    int i, cnt=0, gid;
    GlobalInstrCt gic;

    /* If all glyphs are selected, then no legacy hint will remain after */
    /*  instructing, so we might as well clear all the legacy tables too */
    /* (This way the auto hinter won't complain if they existed) */
    if ( fv->sf->ttf_tables!=NULL && AllGlyphsSelected(fv))
	ClearFpgmPrepCvt(fv->sf);
    if ( fv->sf->private==NULL && !no_windowing_ui )
	ff_post_notice( _("Things could be better..."), _("You will get better instructions if you fill in the Private dictionary, Element->Font Info->Private, for the font"));
    if ( !no_windowing_ui && !AnySelectedHints(fv))
	ff_post_notice(_("Things could be better..."), _("The selected glyphs have no hints. FontForge will not produce many instructions."));

    QuickBlues(fv->sf,fv->active_layer,&bd);

    InitGlobalInstrCt(&gic,fv->sf,fv->active_layer,&bd);

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Auto Instructing Font..."),_("Auto Instructing Font..."),0,cnt,1);

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];
	NowakowskiSCAutoInstr(&gic,sc);
	if ( !ff_progress_next())
    break;
    }

    FreeGlobalInstrCt(&gic);

    ff_progress_end_indicator();
}

void FVClearInstrs(FontViewBase *fv) {
    SplineChar *sc;
    int i, gid;

    if ( !SFCloseAllInstrs(fv->sf))
return;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting((sc = fv->sf->glyphs[gid])) ) {
	if ( sc->ttf_instrs_len!=0 ) {
	    free(sc->ttf_instrs);
	    sc->ttf_instrs = NULL;
	    sc->ttf_instrs_len = 0;
	    sc->instructions_out_of_date = false;
	    SCCharChangedUpdate(sc,ly_none);
	    sc->complained_about_ptnums = false;
	}
    }
}

void FVClearHints(FontViewBase *fv) {
    int i, gid;

    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] &&
	    (gid = fv->map->map[i])!=-1 && SCWorthOutputting(fv->sf->glyphs[gid]) ) {
	SplineChar *sc = fv->sf->glyphs[gid];
	sc->manualhints = true;
	SCPreserveHints(sc,fv->active_layer);
	SCClearHints(sc);
	SCUpdateAll(sc);
    }
}

FontViewBase *ViewPostScriptFont(const char *filename,int openflags) {
    SplineFont *sf = LoadSplineFont(filename,openflags);
    extern NameList *force_names_when_opening;
    if ( sf==NULL )
return( NULL );
    if ( sf->fv==NULL && force_names_when_opening!=NULL )
	SFRenameGlyphsToNamelist(sf,force_names_when_opening );
return( FontViewCreate(sf,openflags&of_hidewindow));	/* Always make a new view now */
}

static int tester(SplineChar *sc, struct lookup_subtable *sub) {
    PST *pst;
    KernPair *kp;
    int isv;
    AnchorPoint *ap;

    if ( sc==NULL )
return( false );

    for ( ap=sc->anchor; ap!=NULL; ap=ap->next )
	if ( ap->anchor->subtable == sub )
return( true );
    for ( pst=sc->possub; pst!=NULL; pst=pst->next )
	if ( pst->subtable==sub )
return( true );
    for ( isv=0; isv<2; ++isv )
	for ( kp = isv ? sc->vkerns : sc->kerns; kp!=NULL; kp=kp->next )
	    if ( kp->subtable == sub )
return( true );

return( false );
}

int FVBParseSelectByPST(FontViewBase *fv,struct lookup_subtable *sub,
	int search_type) {
    int i;
    SplineFont *sf;
    int first;
    int gid;

    sf = fv->sf;
    first = -1;
    if ( search_type==1 ) {	/* Select results */
	for ( i=0; i<fv->map->enccount; ++i ) {
	    gid=fv->map->map[i];
	    if ( (fv->selected[i] = tester(gid==-1?NULL:sf->glyphs[gid],sub)) && first==-1 )
		first = i;
	}
    } else if ( search_type==2) {/* merge results */
	for ( i=0; i<fv->map->enccount; ++i ) if ( !fv->selected[i] ) {
	    gid=fv->map->map[i];
	    if ( (fv->selected[i] = tester(gid==-1?NULL:sf->glyphs[gid],sub)) && first==-1 )
		first = i;
	}
    } else {			/* restrict selection */
	for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] ) {
	    gid=fv->map->map[i];
	    if ( (fv->selected[i] = tester(gid==-1?NULL:sf->glyphs[gid],sub)) && first==-1 )
		first = i;
	}
    }
return( first );
}

void FVBuildAccent(FontViewBase *fv,int onlyaccents) {
    int i, cnt=0, gid;
    SplineChar dummy;
    SplineChar *sc;

    for ( i=0; i<fv->map->enccount; ++i )
	if ( fv->selected[i] && (gid = fv->map->map[i])!=-1 &&
		SCWorthOutputting(fv->sf->glyphs[gid]) )
	    ++cnt;
    ff_progress_start_indicator(10,_("Building accented glyphs"),
	    _("Building accented glyphs"),NULL,cnt,1);

    SFUntickAll(fv->sf);
    for ( i=0; i<fv->map->enccount; ++i ) if ( fv->selected[i] ) {
	gid = fv->map->map[i];
	sc = NULL;
	if ( gid!=-1 ) {
	    sc = fv->sf->glyphs[gid];
	    if ( sc!=NULL && sc->ticked )
    continue;
	}
	if ( sc==NULL )
	    sc = SCBuildDummy(&dummy,fv->sf,fv->map,i);
	else if ( !no_windowing_ui && sc->unicodeenc == 0x00c5 /* Aring */ &&
		sc->layers[fv->active_layer].splines!=NULL ) {
	    char *buts[3];
	    buts[0] = _("_Yes");
	    buts[1] = _("_No");
	    buts[2] = NULL;
	    if ( ff_ask(U_("Replace Å"),(const char **) buts,0,1,U_("Are you sure you want to replace Å?\nThe ring will not join to the A."))==1 )
    continue;
	}
	if ( SFIsSomethingBuildable(fv->sf,sc,fv->active_layer,onlyaccents) ) {
	    sc = SFMakeChar(fv->sf,fv->map,i);
	    sc->ticked = true;
	    SCBuildComposit(fv->sf,sc,fv->active_layer,fv->active_bitmap,onlycopydisplayed,onlyaccents);
	}
	if ( !ff_progress_next())
    break;
    }
    ff_progress_end_indicator();
}

void FVAddUnencoded(FontViewBase *fv, int cnt) {
    int i;
    EncMap *map = fv->map;

    if ( fv->normal!=NULL ) {
	/* If it's compacted, lose the base encoding and the fact that it's */
	/*  compact and make it be custom. That's what Alexey Kryukov asked */
	/*  for */
	EncMapFree(fv->normal);
	// If fv->normal happens to be fv->sf->map, freeing it leaves an invalid pointer in the splinefont.
	// So we tell the splinefont to use the fontview map.
	if (fv->sf != NULL && fv->normal == fv->sf->map) { fv->sf->map = NULL; }
	fv->normal = NULL;
	fv->map->enc = &custom;
	FVSetTitle(fv);
    }
    if ( fv->cidmaster ) {
	SplineFont *sf = fv->sf;
	FontViewBase *fvs;
	if ( sf->glyphcnt+cnt>=sf->glyphmax )
	    sf->glyphs = realloc(sf->glyphs,(sf->glyphmax = sf->glyphcnt+cnt+10)*sizeof(SplineChar *));
	memset(sf->glyphs+sf->glyphcnt,0,cnt*sizeof(SplineChar *));
	for ( fvs=sf->fv; fvs!=NULL; fvs=fvs->nextsame ) {
	    EncMap *map = fvs->map;
	    if ( map->enccount+cnt>=map->encmax )
		map->map = realloc(map->map,(map->encmax += cnt+10)*sizeof(int));
	    if ( sf->glyphcnt+cnt>=map->backmax )
		map->backmap = realloc(map->backmap,(map->backmax += cnt+10)*sizeof(int));
	    for ( i=map->enccount; i<map->enccount+cnt; ++i )
		map->map[i] = map->backmap[i] = i;
	    fvs->selected = realloc(fvs->selected,(map->enccount+cnt));
	    memset(fvs->selected+map->enccount,0,cnt);
	    map->enccount += cnt;
	}
	sf->glyphcnt += cnt;
	FontViewReformatAll(fv->sf);
    } else {
	if ( map->enccount+cnt>=map->encmax )
	    map->map = realloc(map->map,(map->encmax += cnt+10)*sizeof(int));
	for ( i=map->enccount; i<map->enccount+cnt; ++i )
	    map->map[i] = -1;
	fv->selected = realloc(fv->selected,(map->enccount+cnt));
	memset(fv->selected+map->enccount,0,cnt);
	map->enccount += cnt;
	FontViewReformatOne(fv);
	FVDisplayEnc(fv,map->enccount-cnt);
    }
}

void FVRemoveUnused(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    EncMap *map = fv->map;
    int oldcount = map->enccount;
    int gid, i;
    int flags = -1;

    for ( i=map->enccount-1;
            i>=map->enc->char_cnt &&
                ((gid=map->map[i])==-1 || !SCWorthOutputting(sf->glyphs[gid]));
	    --i ) {
	if ( gid!=-1 )
	    SFRemoveGlyph(sf,sf->glyphs[gid]);
	map->enccount = i;
    }
    /* We reduced the encoding, so don't really need to reallocate the selection */
    /*  array. It's just bigger than it needs to be. */
    if ( oldcount!=map->enccount )
	FontViewReformatOne(fv);
}

void FVCompact(FontViewBase *fv) {
    int oldcount = fv->map->enccount;

    if ( fv->normal!=NULL ) {
	EncMapFree(fv->map);
	if (fv->sf != NULL && fv->sf->map == fv->map) { fv->sf->map = fv->normal ; }
	fv->map = fv->normal;
	fv->normal = NULL;
	fv->selected = realloc(fv->selected,fv->map->enccount);
	memset(fv->selected,0,fv->map->enccount);
    } else {
	/* We reduced the encoding, so don't really need to reallocate the selection */
	/*  array. It's just bigger than it needs to be. */
	fv->normal = EncMapCopy(fv->map);
	CompactEncMap(fv->map,fv->sf);
	fv->sf->map = fv->map;
    }
    if ( oldcount!=fv->map->enccount )
	FontViewReformatOne(fv);
    FVSetTitle(fv);
}

void FVDetachGlyphs(FontViewBase *fv) {
    int i, j, gid;
    EncMap *map = fv->map;
    int altered = false;
    SplineFont *sf = fv->sf;

    for ( i=0; i<map->enccount; ++i ) if ( fv->selected[i] && (gid=map->map[i])!=-1 ) {
	altered = true;
	map->map[i] = -1;
	if ( map->backmap[gid]==i ) {
	    for ( j=map->enccount-1; j>=0 && map->map[j]!=gid; --j );
	    map->backmap[gid] = j;
	}
	if ( sf->glyphs[gid]!=NULL && sf->glyphs[gid]->altuni != NULL && map->enc!=&custom )
	    AltUniRemove(sf->glyphs[gid],UniFromEnc(i,map->enc));
    }
    if ( altered )
	FVRefreshAll(sf);
}

void FVDetachAndRemoveGlyphs(FontViewBase *fv) {
    int i, j, gid;
    EncMap *map = fv->map;
    SplineFont *sf = fv->sf;
    int flags = -1;
    int changed = false, altered = false;
    FontViewBase *fvs;

    for ( i=0; i<map->enccount; ++i ) if ( fv->selected[i] && (gid=map->map[i])!=-1 ) {
	altered = true;
	map->map[i] = -1;
	if ( map->backmap[gid]==i ) {
	    for ( j=map->enccount-1; j>=0 && map->map[j]!=gid; --j );
	    map->backmap[gid] = j;
	    if ( j==-1 ) {
		SFRemoveGlyph(sf,sf->glyphs[gid]);
		changed = true;
	    } else if ( sf->glyphs[gid]!=NULL && sf->glyphs[gid]->altuni != NULL && map->enc!=&custom )
		AltUniRemove(sf->glyphs[gid],UniFromEnc(i,map->enc));
	}
    }
    if ( changed && !fv->sf->changed ) {
	fv->sf->changed = true;
	for ( fvs=sf->fv; fvs!=NULL; fvs=fvs->nextsame )
	    FVSetTitle(fvs);
    }
    if ( altered )
	FVRefreshAll(sf);
}

void FVMetricsCenter(FontViewBase *fv,int docenter) {
    int i, gid;
    SplineChar *sc;
    DBounds bb;
    IBounds ib;
    real transform[6], itransform[6];
    BVTFunc bvts[2];
    BDFFont *bdf;

    memset(transform,0,sizeof(transform));
    memset(itransform,0,sizeof(itransform));
    transform[0] = transform[3] = 1.0;
    itransform[0] = itransform[3] = 1.0;
    itransform[2] = tan( fv->sf->italicangle * FF_PI/180.0 );
    bvts[1].func = bvt_none;
    bvts[0].func = bvt_transmove; bvts[0].y = 0;
    if ( !fv->sf->onlybitmaps ) {
	for ( i=0; i<fv->map->enccount; ++i ) {
	    if ( fv->selected[i] && (gid=fv->map->map[i])!=-1 &&
		    (sc = fv->sf->glyphs[gid])!=NULL ) {
		if ( itransform[2] == 0 )
		    SplineCharFindBounds(sc,&bb);
		else {
		    SplineSet *base, *temp;
		    base = LayerAllSplines(&sc->layers[fv->active_layer]);
		    temp = SplinePointListTransform(SplinePointListCopy(base),itransform,tpt_AllPoints);
		    LayerUnAllSplines(&sc->layers[fv->active_layer]);
		    SplineSetFindBounds(temp,&bb);
		    SplinePointListsFree(temp);
		}
		if ( docenter )
		    transform[4] = (sc->width-(bb.maxx-bb.minx))/2 - bb.minx;
		else
		    transform[4] = (sc->width-(bb.maxx-bb.minx))/3 - bb.minx;
		if ( transform[4]!=0 ) {
		    FVTrans(fv,sc,transform,NULL, fvt_dontmovewidth | fvt_alllayers );
		    bvts[0].x = transform[4];
		    for ( bdf = fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next )
			if ( gid<bdf->glyphcnt && bdf->glyphs[gid]!=NULL )
			    BCTrans(bdf,bdf->glyphs[gid],bvts,fv);
		}
	    }
	}
    } else {
	double scale = (fv->sf->ascent+fv->sf->descent)/(double) (fv->active_bitmap->pixelsize);
	for ( i=0; i<fv->map->enccount; ++i ) {
	    if ( fv->selected[i] && (gid=fv->map->map[i])!=-1 &&
		    fv->sf->glyphs[gid]!=NULL ) {
		BDFChar *bc = fv->active_bitmap->glyphs[gid];
		if ( bc==NULL ) bc = BDFMakeChar(fv->active_bitmap,fv->map,i);
		BDFCharFindBounds(bc,&ib);
		if ( docenter )
		    transform[4] = scale * ((bc->width-(ib.maxx-ib.minx))/2 - ib.minx);
		else
		    transform[4] = scale * ((bc->width-(ib.maxx-ib.minx))/3 - ib.minx);
		if ( transform[4]!=0 ) {
		    FVTrans(fv,fv->sf->glyphs[gid],transform,NULL,fvt_dontmovewidth);
		    bvts[0].x = transform[4];
		    for ( bdf = fv->sf->bitmaps; bdf!=NULL; bdf=bdf->next )
			if ( gid<bdf->glyphcnt && bdf->glyphs[gid]!=NULL )
			    BCTrans(bdf,bdf->glyphs[gid],bvts,fv);
		}
	    }
	}
    }
}

static int RevertAskChanged(char *fontname,char *filename) {
    int ret;
    char *buts[3];

    if ( filename==NULL ) filename = "untitled.sfd";
    filename = GFileNameTail(filename);
    buts[0] = _("_Revert");
    buts[1] = _("_Cancel");
    buts[2] = NULL;
    ret = ff_ask( _("Font changed"),(const char **) buts,0,1,_("Font %1$.40s in file %2$.40s has been changed.\nReverting the file will lose those changes.\nIs that what you want?"),fontname,filename);
return( ret==0 );
}

static void _FVRevert(FontViewBase *fv,int tobackup) {
    SplineFont *temp, *old = fv->cidmaster?fv->cidmaster:fv->sf;
    BDFFont *bdf;
    int i;
    FontViewBase *fvs;
    EncMap *map;

    if ( old->origname==NULL )
return;
    if ( old->changed )
	if ( !RevertAskChanged(old->fontname,old->origname))
return;
    if ( tobackup ) {
	/* we can only revert to backup if it's an sfd file. So we use filename*/
	/*  here. In the normal case we revert to whatever file we read it from*/
	/*  (sfd or not) so we use origname */
	char *buf = malloc(strlen(old->filename)+20);
	strcpy(buf,old->filename);
	if ( old->compression!=0 ) {
	    char *tmpf;
	    strcat(buf,compressors[old->compression-1].ext);
	    strcat(buf,"~");
	    tmpf = Decompress(buf,old->compression-1);
	    if ( tmpf==NULL )
		temp = NULL;
	    else {
		temp = ReadSplineFont(tmpf,0);
		unlink(tmpf);
		free(tmpf);
	    }
	} else {
	    strcat(buf,"~");
	    temp = ReadSplineFont(buf,0);
	}
	free(buf);
    } else {
	if ( old->compression!=0 ) {
	    char *tmpf;
	    char *buf = malloc(strlen(old->filename)+20);
	    strcpy(buf,old->filename);
	    strcat(buf,compressors[old->compression-1].ext);
	    tmpf = Decompress(buf,old->compression-1);
	    if ( tmpf==NULL )
		temp = NULL;
	    else {
		temp = ReadSplineFont(tmpf,0);
		unlink(tmpf);
		free(tmpf);
	    }
	} else
	    temp = ReadSplineFont(old->origname,0);
    }
    if ( temp==NULL ) {
return;
    }
    if ( temp->filename!=NULL ) {
	free(temp->filename);
	temp->filename = copy(old->filename);
    }
    if ( temp->origname!=NULL ) {
	free(temp->origname);
	temp->origname = copy(old->origname);
    }
    temp->compression = old->compression;
    temp->fv = old->fv;
    FVReattachCVs(old,temp);
    for ( i=0; i<old->subfontcnt; ++i )
	FVReattachCVs(old->subfonts[i],temp);
    if ( fv->sf->fontinfo )
	FontInfo_Destroy(fv->sf);
    for ( bdf=old->bitmaps; bdf!=NULL; bdf=bdf->next )
	for ( i=0; i<bdf->glyphcnt; ++i ) if ( bdf->glyphs[i]!=NULL )
	    BCDestroyAll(bdf->glyphs[i]);
    MVDestroyAll(old);
    for ( fvs=fv->sf->fv; fvs!=NULL; fvs=fvs->nextsame ) {
	if ( fvs==fv )
	    map = temp->map;
	else
	    map = EncMapFromEncoding(fv->sf,fv->map->enc);
	if ( map->enccount>fvs->map->enccount ) {
	    fvs->selected = realloc(fvs->selected,map->enccount);
	    memset(fvs->selected+fvs->map->enccount,0,map->enccount-fvs->map->enccount);
	}
	EncMapFree(fv->map);
	if (fv->sf != NULL && fv->map == fv->sf->map) { fv->sf->map = map; }
	fv->map = map;
	if ( fvs->normal!=NULL ) {
	    EncMapFree(fvs->normal);
	    fvs->normal = EncMapCopy(fvs->map);
	    CompactEncMap(fvs->map,temp);
	}
    }
    ff_progress_allow_events();
    SFClearAutoSave(old);
    temp->fv = fv->sf->fv;
    for ( fvs=fv->sf->fv; fvs!=NULL; fvs=fvs->nextsame )
	fvs->sf = temp;
    FontViewReformatAll(fv->sf);
    SplineFontFree(old);
}

void FVRevert(FontViewBase *fv) {
    _FVRevert(fv,false);
}

void FVRevertBackup(FontViewBase *fv) {
    _FVRevert(fv,true);
}

void FVRevertGlyph(FontViewBase *fv) {
    int i, gid;
    int nc_state = -1;
    SplineFont *sf = fv->sf;
    SplineChar *sc, *tsc;
    SplineChar temp;
    Undoes **undoes;
    int layer, lc;
    EncMap *map = fv->map;
    CharViewBase *cvs;
    int alayer = ly_fore;

    if ( fv->sf->sfd_version<2 )
	ff_post_error(_("Old sfd file"),_("This font comes from an old format sfd file. Not all aspects of it can be reverted successfully."));

    for ( i=0; i<map->enccount; ++i ) if ( fv->selected[i] && (gid=map->map[i])!=-1 && sf->glyphs[gid]!=NULL ) {
	tsc = sf->glyphs[gid];
	if ( tsc->namechanged ) {
	    if ( nc_state==-1 ) {
		ff_post_error(_("Glyph Name Changed"),_("The name of glyph %.40s has changed. This is what I use to find the glyph in the file, so I cannot revert this glyph.\n(You will not be warned for subsequent glyphs.)"),tsc->name);
		nc_state = 0;
	    }
	} else {
	    sc = SFDReadOneChar(sf,tsc->name);
	    if ( sc==NULL ) {
		ff_post_error(_("Can't Find Glyph"),_("The glyph, %.80s, can't be found in the sfd file"),tsc->name);
		tsc->namechanged = true;
	    } else {
		SCPreserveState(tsc,true);
		SCPreserveBackground(tsc);
		if ( tsc->views!=NULL )
		    alayer = CVLayer(tsc->views);
		temp = *tsc;
		tsc->dependents = NULL;
		lc = tsc->layer_cnt;
		undoes = malloc(lc*sizeof(Undoes *));
		for ( layer=0; layer<lc; ++layer ) {
		    undoes[layer] = tsc->layers[layer].undoes;
		    tsc->layers[layer].undoes = NULL;
		}
		SplineCharFreeContents(tsc);
		*tsc = *sc;
		chunkfree(sc,sizeof(SplineChar));
		tsc->parent = sf;
		tsc->dependents = temp.dependents;
		tsc->views = temp.views;
		for ( layer = 0; layer<lc && layer<tsc->layer_cnt; ++layer )
		    tsc->layers[layer].undoes = undoes[layer];
		for ( ; layer<lc; ++layer )
		    UndoesFree(undoes[layer]);
		free(undoes);
		/* tsc->changed = temp.changed; */
		/* tsc->orig_pos = temp.orig_pos; */
		for ( cvs=tsc->views; cvs!=NULL; cvs= cvs->next ) {
		    cvs->layerheads[dm_back] = &tsc->layers[ly_back];
		    cvs->layerheads[dm_fore] = &tsc->layers[ly_fore];
		    if ( sf->multilayer ) {
			if ( alayer!=ly_back )
			    cvs->layerheads[dm_fore] = &tsc->layers[alayer];
		    } else {
			if ( alayer!=ly_fore )
			    cvs->layerheads[dm_back] = &tsc->layers[alayer];
		    }
		}
		RevertedGlyphReferenceFixup(tsc, sf);
		_SCCharChangedUpdate(tsc,alayer,false);
	    }
	}
    }
}

void FVClearSpecialData(FontViewBase *fv) {
    SplineFont *sf = fv->sf;
    if (sf) SplineFontClearSpecial(sf);
}

static int isuniname(char *name) {
    int i;
    if ( name[0]!='u' || name[1]!='n' || name[2]!='i' )
return( false );
    for ( i=3; i<7; ++i )
	if ( name[i]<'0' || (name[i]>'9' && name[i]<'A') || name[i]>'F' )
return( false );
    if ( name[7]!='\0' )
return( false );

return( true );
}

static int isuname(char *name) {
    int i;
    if ( name[0]!='u' )
return( false );
    for ( i=1; i<5; ++i )
	if ( name[i]<'0' || (name[i]>'9' && name[i]<'A') || name[i]>'F' )
return( false );
    if ( name[5]!='\0' )
return( false );

return( true );
}

void FVB_MakeNamelist(FontViewBase *fv, FILE *file) {
    SplineChar *sc;
    int i;

    for ( i=0; i<fv->sf->glyphcnt; ++i ) {
	if ( (sc = fv->sf->glyphs[i])!=NULL && sc->unicodeenc!=-1 ) {
	    if ( !isuniname(sc->name) && !isuname(sc->name ) )
		fprintf( file, "0x%04X %s\n", sc->unicodeenc, sc->name );
	}
    }
}

/*                             FV Interface                                   */

static FontViewBase *_FontViewBaseCreate(SplineFont *sf) {
    FontViewBase *fv = calloc(1,sizeof(FontViewBase));
    int i;

    fv->nextsame = sf->fv;
    fv->active_layer = ly_fore;
    sf->fv = fv;
    if ( sf->mm!=NULL ) {
	sf->mm->normal->fv = fv;
	for ( i = 0; i<sf->mm->instance_count; ++i )
	    sf->mm->instances[i]->fv = fv;
    }
    if ( sf->subfontcnt==0 ) {
	fv->sf = sf;
	if ( fv->nextsame!=NULL ) {
	    fv->map = EncMapCopy(fv->nextsame->map);
	    fv->normal = fv->nextsame->normal==NULL ? NULL : EncMapCopy(fv->nextsame->normal);
	    fprintf(stderr, "There are two FontViews using the same SplineFont. Please report on the issue tracker or the mailing list how you reached this point.\n");
	} else if ( sf->compacted ) {
	    fv->normal = sf->map;
	    fv->map = CompactEncMap(EncMapCopy(sf->map),sf);
	    sf->map = fv->map;
	} else {
	    fv->map = sf->map;
	    fv->normal = NULL;
	}
    } else {
	fv->cidmaster = sf;
	for ( i=0; i<sf->subfontcnt; ++i )
	    sf->subfonts[i]->fv = fv;
	for ( i=0; i<sf->subfontcnt; ++i )	/* Search for a subfont that contains more than ".notdef" (most significant in .gai fonts) */
	    if ( sf->subfonts[i]->glyphcnt>1 ) {
		fv->sf = sf->subfonts[i];
	break;
	    }
	if ( fv->sf==NULL )
	    fv->sf = sf->subfonts[0];
	sf = fv->sf;
	if ( fv->nextsame==NULL ) { EncMapFree(sf->map); sf->map = NULL; }
	fv->map = EncMap1to1(sf->glyphcnt);
	if ( fv->nextsame==NULL ) { sf->map = fv->map; }
    }
    fv->selected = calloc(fv->map->enccount,sizeof(uint8));

#ifndef _NO_PYTHON
    PyFF_InitFontHook(fv);
#endif
return( fv );
}

static FontViewBase *FontViewBase_Create(SplineFont *sf,int UNUSED(hide)) {
    FontViewBase *fv = _FontViewBaseCreate(sf);
return( fv );
}

static FontViewBase *FontViewBase_Append(FontViewBase *fv)
{
    /* Normally fontviews get added to the fv list when their windows are */
    /*  created. but we don't create any windows here, so... */
    FontViewBase *test;

    if ( fv_list==NULL ) fv_list = fv;
    else {
	for ( test = fv_list; test->next!=NULL; test=test->next );
	test->next = fv;
    }
return( fv );
}

static void FontViewBase_Free(FontViewBase *fv) {
    int i;
    FontViewBase *prev;

   if ( fv->nextsame==NULL && fv->sf->fv==fv ) {
	EncMapFree(fv->map);
	if (fv->sf != NULL && fv->map == fv->sf->map) { fv->sf->map = NULL; }
	fv->map = NULL;
	SplineFontFree(fv->cidmaster?fv->cidmaster:fv->sf);
    } else {
	EncMapFree(fv->map);
	if (fv->sf != NULL && fv->map == fv->sf->map) { fv->sf->map = NULL; }
	fv->map = NULL;
	if ( fv->sf->fv==fv ) {
	    if ( fv->cidmaster==NULL )
		fv->sf->fv = fv->nextsame;
	    else {
		fv->cidmaster->fv = fv->nextsame;
		for ( i=0; i<fv->cidmaster->subfontcnt; ++i )
		    fv->cidmaster->subfonts[i]->fv = fv->nextsame;
	    }
	} else {
	    for ( prev = fv->sf->fv; prev->nextsame!=fv; prev=prev->nextsame );
	    prev->nextsame = fv->nextsame;
	}
    }
#ifndef _NO_FFSCRIPT
    DictionaryFree(fv->fontvars);
    free(fv->fontvars);
#endif
    free(fv->selected);
#ifndef _NO_PYTHON
    PyFF_FreeFV(fv);
#endif
    free(fv);
}

static int FontViewBaseWinInfo(FontViewBase *UNUSED(fv), int *cc, int *rc) {
    *cc = 16; *rc = 4;
return( -1 );
}

static void FontViewBaseSetTitle(FontViewBase *UNUSED(foo)) { }
static void FontViewBaseSetTitles(SplineFont *UNUSED(foo)) { }
static void FontViewBaseRefreshAll(SplineFont *UNUSED(foo)) { }
static void FontViewBaseReformatOne(FontViewBase *UNUSED(foo)) { }
static void FontViewBaseReformatAll(SplineFont *UNUSED(foo)) { }
static void FontViewBaseLayerChanged(FontViewBase *UNUSED(foo)) { }
static void FV_ToggleCharChanged(SplineChar *UNUSED(foo)) { }
static FontViewBase *FVAny(void) { return fv_list; }
static int  FontIsActive(SplineFont *sf) {
    FontViewBase *fv;

    for ( fv=fv_list; fv!=NULL; fv=fv->next )
	if ( fv->sf == sf )
return( true );

return( false );
}

static SplineFont *FontOfFilename(const char *filename) {
    char buffer[1025];
    FontViewBase *fv;

    GFileGetAbsoluteName((char *) filename,buffer,sizeof(buffer));
    for ( fv=fv_list; fv!=NULL ; fv=fv->next ) {
	if ( fv->sf->filename!=NULL && strcmp(fv->sf->filename,buffer)==0 )
return( fv->sf );
	else if ( fv->sf->origname!=NULL && strcmp(fv->sf->origname,buffer)==0 )
return( fv->sf );
    }
return( NULL );
}

static void FVExtraEncSlots(FontViewBase *UNUSED(fv), int UNUSED(encmax)) {
}

static void FontViewBase_Close(FontViewBase *fv) {
    if ( fv_list==fv )
	fv_list = fv->next;
    else {
	FontViewBase *n;
	for ( n=fv_list; n->next!=fv; n=n->next );
	n->next = fv->next;
    }
    FontViewFree(fv);
}

static void FVB_ChangeDisplayBitmap(FontViewBase *fv, BDFFont *bdf) {
    fv->active_bitmap = bdf;
}

static void FVB_ShowFilled(FontViewBase *fv) {
    fv->active_bitmap = NULL;
}

static void FVB_ReattachCVs(SplineFont *UNUSED(old), SplineFont *UNUSED(new)) {
}

static void FVB_DeselectAll(FontViewBase *fv) {
    memset(fv->selected,0,fv->map->encmax);
}

static void FVB_DisplayChar(FontViewBase *UNUSED(fv),int UNUSED(gid)) {
}

static int SFB_CloseAllInstrs(SplineFont *UNUSED(sf)) {
return( true );
}

struct fv_interface noui_fv = {
    FontViewBase_Create,
    _FontViewBaseCreate,
    FontViewBase_Close,
    FontViewBase_Free,
    FontViewBaseSetTitle,
    FontViewBaseSetTitles,
    FontViewBaseRefreshAll,
    FontViewBaseReformatOne,
    FontViewBaseReformatAll,
    FontViewBaseLayerChanged,
    FV_ToggleCharChanged,
    FontViewBaseWinInfo,
    FontIsActive,
    FVAny,
    FontViewBase_Append,
    FontOfFilename,
    FVExtraEncSlots,
    FVExtraEncSlots,
    FVB_ChangeDisplayBitmap,
    FVB_ShowFilled,
    FVB_ReattachCVs,
    FVB_DeselectAll,
    FVB_DisplayChar,
    FVB_DisplayChar,
    FVB_DisplayChar,
    SFB_CloseAllInstrs
};

struct fv_interface *fv_interface = &noui_fv;

void FF_SetFVInterface(struct fv_interface *fvi) {
    fv_interface = fvi;
}


/******************************************************************************/
static int NoGlyphs(struct metricsview *UNUSED(mv)) {
return( 0 );
}

static SplineChar *Nothing(struct metricsview *UNUSED(mv), int UNUSED(i)) {
return( NULL );
}

static void NoReKern(struct splinefont *UNUSED(sf)) {
}

static void NoReFeature(struct splinefont *UNUSED(sf)) {
}

static void NoCloseAll(struct splinefont *UNUSED(sf)) {
}

struct mv_interface noui_mv = {
    NoGlyphs,
    Nothing,
    NoReKern,
    NoReFeature,
    NoCloseAll
};

struct mv_interface *mv_interface = &noui_mv;

void FF_SetMVInterface(struct mv_interface *mvi) {
    mv_interface = mvi;
}