static void KPScrollTo(KPData *kpd, unichar_t uch, enum sortby sort) {
int i;
if ( sort==sb_first ) {
for ( i=0; i<kpd->kcnt && kpd->kerns[i].first->unicodeenc<uch; ++i );
} else {
for ( i=0; i<kpd->kcnt && kpd->kerns[i].second->unicodeenc<uch; ++i );
}
if ( kpd->wh<=2 )
/* As is */;
else if ( kpd->wh<5 )
--i;
else
i -= kpd->wh/5;
if ( i>kpd->kcnt-kpd->wh )
i = kpd->kcnt-kpd->wh;
if ( i<0 )
i = 0;
if ( i!=kpd->off_top ) {
int off = i-kpd->off_top;
kpd->off_top = i;
GScrollBarSetPos(GWidgetGetControl(kpd->gw,CID_ScrollBar),kpd->off_top);
GDrawScroll(kpd->v,NULL,0,off*kpd->uh);
}
}
static int KP_Scrolled(GGadget *g, GEvent *e) {
if ( e->type==et_controlevent && e->u.control.subtype == et_scrollbarchange ) {
KPData *kpd = GDrawGetUserData(GGadgetGetWindow(g));
int newpos = kpd->off_top;
switch( e->u.control.u.sb.type ) {
case et_sb_top:
newpos = 0;
break;
case et_sb_halfup:
case et_sb_uppage:
newpos -= kpd->wh==1?1:kpd->wh-1;
break;
case et_sb_up:
newpos -= 1;
break;
case et_sb_halfdown:
case et_sb_down:
newpos += 1;
break;
case et_sb_downpage:
newpos += kpd->wh==1?1:kpd->wh-1;
break;
case et_sb_bottom:
newpos = kpd->kcnt-kpd->wh;
break;
case et_sb_thumb:
case et_sb_thumbrelease:
newpos = e->u.control.u.sb.pos;
break;
}
if ( newpos>kpd->kcnt-kpd->wh )
newpos = kpd->kcnt-kpd->wh;
if ( newpos<0 )
newpos = 0;
if ( newpos!=kpd->off_top ) {
int off = newpos-kpd->off_top;
kpd->off_top = newpos;
GScrollBarSetPos(g,kpd->off_top);
GDrawScroll(kpd->v,NULL,0,off*kpd->uh);
}
}
return( true );
}
static void BdfP_VScroll(struct bdf_dlg *bd,struct sbevent *sb) {
int newpos = bd->cur->top_prop;
int page = bd->vheight/(bd->fh+1);
switch( sb->type ) {
case et_sb_top:
newpos = 0;
break;
case et_sb_uppage:
newpos -= 9*page/10;
break;
case et_sb_up:
newpos--;
break;
case et_sb_down:
newpos++;
break;
case et_sb_downpage:
newpos += 9*page/10;
break;
case et_sb_bottom:
newpos = bd->cur->bdf->prop_cnt+1;
break;
case et_sb_thumb:
case et_sb_thumbrelease:
newpos = sb->pos;
break;
}
if ( newpos + page > bd->cur->bdf->prop_cnt+1 )
newpos = bd->cur->bdf->prop_cnt+1 - page;
if ( newpos<0 )
newpos = 0;
if ( newpos!=bd->cur->top_prop ) {
int diff = (newpos-bd->cur->top_prop)*(bd->fh+1);
GRect r;
bd->cur->top_prop = newpos;
GScrollBarSetPos(bd->vsb,newpos);
GGadgetGetSize(bd->tf,&r);
GGadgetMove(bd->tf,r.x,r.y+diff);
r.x = 0; r.y = 0; r.width = bd->vwidth; r.height = (bd->vheight/(bd->fh+1))*(bd->fh+1);
GDrawScroll(bd->v,&r,0,diff);
}
}
static void AnchorD_HScroll(AnchorDlg *a,struct sbevent *sb) {
int newpos = a->xoff;
GRect rect;
switch( sb->type ) {
case et_sb_top:
newpos = 0;
break;
case et_sb_uppage:
newpos -= a->sb_width;
break;
case et_sb_up:
newpos -= a->pixelsize*a->magfactor/2;
break;
case et_sb_down:
newpos = a->pixelsize*a->magfactor/2;
break;
case et_sb_downpage:
newpos += a->sb_width;
break;
case et_sb_bottom:
newpos = a->xlen - a->sb_width;
break;
case et_sb_thumb:
case et_sb_thumbrelease:
newpos = sb->pos;
break;
}
if ( newpos + a->sb_width >= a->xlen )
newpos = a->xlen - a->sb_width;
if ( newpos < 0 ) newpos = 0;
if ( newpos!=a->xoff ) {
int diff = newpos-a->xoff;
a->xoff = newpos;
GScrollBarSetPos(a->hsb,newpos);
if ( a->cnt!=0 ) {
rect.x = a->apmatch[0].xstart+1; rect.y = 0;
rect.width = a->sb_width;
rect.height = a->sb_base;
GDrawScroll(a->gw,&rect,-diff,0);
}
}
}
static void GroupHScroll(struct groupdlg *grp,struct sbevent *sb) {
int newpos = grp->off_left;
switch( sb->type ) {
case et_sb_top:
newpos = 0;
break;
case et_sb_uppage:
newpos -= grp->page_width;
break;
case et_sb_up:
--newpos;
break;
case et_sb_down:
++newpos;
break;
case et_sb_downpage:
newpos += grp->page_width;
break;
case et_sb_bottom:
newpos = grp->maxl-grp->page_width;
break;
case et_sb_thumb:
case et_sb_thumbrelease:
newpos = sb->pos;
break;
}
if ( newpos>grp->maxl-grp->page_width )
newpos = grp->maxl-grp->page_width;
if ( newpos<0 ) newpos =0;
if ( newpos!=grp->off_left ) {
int diff = newpos-grp->off_left;
grp->off_left = newpos;
GScrollBarSetPos(grp->hsb,grp->off_left);
GDrawScroll(grp->v,NULL,-diff,0);
}
}
static void GroupScroll(struct groupdlg *grp,struct sbevent *sb) {
int newpos = grp->off_top;
switch( sb->type ) {
case et_sb_top:
newpos = 0;
break;
case et_sb_uppage:
newpos -= grp->lines_page;
break;
case et_sb_up:
--newpos;
break;
case et_sb_down:
++newpos;
break;
case et_sb_downpage:
newpos += grp->lines_page;
break;
case et_sb_bottom:
newpos = grp->open_cnt-grp->lines_page;
break;
case et_sb_thumb:
case et_sb_thumbrelease:
newpos = sb->pos;
break;
}
if ( newpos>grp->open_cnt-grp->lines_page )
newpos = grp->open_cnt-grp->lines_page;
if ( newpos<0 ) newpos =0;
if ( newpos!=grp->off_top ) {
int diff = newpos-grp->off_top;
grp->off_top = newpos;
GScrollBarSetPos(grp->vsb,grp->off_top);
GDrawScroll(grp->v,NULL,0,diff*grp->fh);
}
}
static void GRowColScrollBy(GRowCol *grc,int loff,int xoff) {
int top = GRowColTopInWindow(grc,grc->ltot-1);
int ydiff, i;
if ( grc->loff + loff < 0 )
loff = -grc->loff;
else if ( grc->loff + loff > top )
loff = top-grc->loff;
if ( xoff+grc->xoff<0 )
xoff = -grc->xoff;
else if ( xoff+grc->xoff+grc->g.inner.width > grc->xmax ) {
xoff = grc->xmax-grc->g.inner.width-grc->xoff;
if ( xoff<0 ) xoff = 0;
}
if ( loff == 0 && xoff==0 )
return;
ydiff = 0;
if ( loff>0 ) {
for ( i=0; i<loff && ydiff<grc->g.inner.height; ++i )
ydiff += GTextInfoGetHeight(grc->g.base,grc->ti[i+grc->loff],grc->font);
} else if ( loff<0 ) {
for ( i=loff; i<0 && -ydiff<grc->g.inner.height; ++i )
ydiff -= GTextInfoGetHeight(grc->g.base,grc->ti[i+grc->loff],grc->font);
}
if ( !GDrawIsVisible(grc->g.base))
return;
GDrawForceUpdate(grc->g.base);
grc->loff += loff; grc->xoff += xoff;
if ( ydiff>=grc->g.inner.height || -ydiff >= grc->g.inner.height )
_ggadget_redraw(&grc->g);
else if ( ydiff!=0 || xoff!=0 )
GDrawScroll(grc->g.base,&grc->g.inner,xoff,ydiff);
if ( loff!=0 )
GScrollBarSetPos(&grc->vsb->g,grc->loff);
}
