/* spline set... */
void CVMouseMovePoint(CharView *cv, PressedOn *p) {
SplinePoint *active = cv->active_sp, *merge = p->sp;
SplineSet *activess = cv->active_spl;
if ( cv->b.sc->inspiro && hasspiro()) {
CVMouseMoveSpiroPoint(cv,p);
return;
}
if ( active==NULL )
return;
if ( cv->info.x==active->me.x && cv->info.y==active->me.y )
return;
if ( !cv->recentchange ) CVPreserveState(&cv->b);
CVAdjustPoint(cv,active);
SplineSetSpirosClear(activess);
if (( active->next==NULL || active->prev==NULL ) && merge!=NULL && p->spl!=NULL &&
merge!=active &&
(merge->next==NULL || merge->prev==NULL )) {
CVMergeSplineSets(cv,active,activess,merge,p->spl);
}
SCUpdateAll(cv->b.sc);
}
static void CVMouseMoveSpiroPoint(CharView *cv, PressedOn *p) {
spiro_cp *active = cv->active_cp, *merge = p->spiro;
SplineSet *activess = cv->active_spl;
int active_index;
if ( active==NULL )
return;
if ( cv->info.x==active->x && cv->info.y==active->y )
return;
if ( !cv->recentchange ) CVPreserveState(&cv->b);
active->x = cv->info.x;
active->y = cv->info.y;
CVSetCharChanged(cv,true);
active_index = active-activess->spiros;
if ( active!=merge && merge!=NULL && p->spl!=NULL &&
SPIRO_SPL_OPEN(activess) &&
SPIRO_SPL_OPEN(p->spl) &&
(active_index==0 || active_index==activess->spiro_cnt-2) &&
((merge-p->spl->spiros)==0 || (merge-p->spl->spiros)==p->spl->spiro_cnt-2) ) {
SplinePoint *activesp = active_index==0 ? activess->first : activess->last;
SplinePoint *mergesp = (merge-p->spl->spiros)==0 ? p->spl->first : p->spl->last;
CVMergeSplineSets(cv,activesp,activess,mergesp,p->spl);
}
SSRegenerateFromSpiros(activess);
SCUpdateAll(cv->b.sc);
}
void CVMouseDownKnife(CharView *cv) {
#if defined(KNIFE_CONTINUOUS)
CVPreserveState(&cv->b);
cv->lastknife.x = cv->lastknife.y = -9999;
ProcessKnife(cv,&cv->p);
#else
cv->p.rubberlining = true;
#endif
}
static void* pyFF_maybeCallCVPreserveState( PyFF_Glyph *self )
{
if( !inPythonStartedCollabSession )
return 0;
#ifndef BUILD_COLLAB
return 0;
#else
CharView* cv = 0;
static GHashTable* ht = 0;
if( !ht )
{
ht = g_hash_table_new( g_direct_hash, g_direct_equal );
}
fprintf(stderr,"hash size:%d\n", g_hash_table_size(ht));
gpointer cache = g_hash_table_lookup( ht, self->sc );
if( cache )
{
return cache;
}
SplineFont *sf = self->sc->parent;
FontView* fv = (FontView*)FontViewFind( FontViewFind_bySplineFont, sf );
if( !fv )
{
fprintf(stderr,"Collab error: can not find fontview for the SplineFont of the active char\n");
}
else
{
int old_no_windowing_ui = no_windowing_ui;
no_windowing_ui = 0;
// FIXME: need to find the existing cv if available!
cv = CharViewCreate( self->sc, fv, -1 );
g_hash_table_insert( ht, self->sc, cv );
fprintf(stderr,"added... hash size:%d\n", g_hash_table_size(ht));
CVPreserveState( &cv->b );
collabclient_CVPreserveStateCalled( &cv->b );
no_windowing_ui = old_no_windowing_ui;
printf("called CVPreserveState()\n");
}
return cv;
#endif
}
static void CVOutline(CharView *cv, real width) {
StrokeInfo si;
SplineSet *temp, *spl;
int changed;
memset(&si,0,sizeof(si));
si.removeexternal = true;
si.radius = width;
/* si.removeoverlapifneeded = true;*/
CVPreserveState((CharViewBase *) cv);
temp = SplineSetStroke(cv->b.layerheads[cv->b.drawmode]->splines,&si,cv->b.layerheads[cv->b.drawmode]->order2);
for ( spl=cv->b.layerheads[cv->b.drawmode]->splines; spl->next!=NULL; spl=spl->next );
spl->next = temp;
SplineSetsCorrect(cv->b.layerheads[cv->b.drawmode]->splines,&changed);
CVCharChangedUpdate(&cv->b);
}
void CVPointOfView(CharView *cv,struct pov_data *pov) {
int anysel = CVAnySel(cv,NULL,NULL,NULL,NULL);
BasePoint origin;
CVPreserveState((CharViewBase *) cv);
origin.x = origin.y = 0;
if ( pov->xorigin==or_center || pov->yorigin==or_center )
CVFindCenter(cv,&origin,!anysel);
if ( pov->xorigin==or_lastpress )
origin.x = cv->p.cx;
if ( pov->yorigin==or_lastpress )
origin.y = cv->p.cy;
if ( pov->xorigin!=or_value )
pov->x = origin.x;
if ( pov->yorigin!=or_value )
pov->y = origin.y;
MinimumDistancesFree(cv->b.sc->md); cv->b.sc->md = NULL;
SPLPoV(cv->b.layerheads[cv->b.drawmode]->splines,pov,anysel);
CVCharChangedUpdate(&cv->b);
}
/* When the user tries to add a point (by doing a mouse down with a point tool
selected) there are several cases to be looked at:
If there is a single point selected and it is at the begining/end of an open spline set
if we clicked on another point which is the begining/end of an open splineset
draw a spline connecting the two spline sets and merge them
(or if it's the same spline set, then close it)
else
create a new point where we clicked
draw a spline between the selected point and the new one
deselect the old point
select the new one
endif
else if they clicked on a spline
split the spline into two bits at the point where they clicked
else
create a new point where they clicked
put it on a new splineset
select it
endif
and, if the old point is a tangent, we may need to adjust its control pt
With the introduction of spiro mode (Raph Levien's clothoid splines)
we've got to worry about all the above cases for spiro points too.
*/
void CVMouseDownPoint(CharView *cv, GEvent *event) {
SplineSet *sel, *ss;
SplinePoint *sp, *base = NULL;
SplineChar *sc = cv->b.sc;
enum pointtype ptype = (cv->active_tool==cvt_curve?pt_curve:
cv->active_tool==cvt_hvcurve?pt_hvcurve:
cv->active_tool==cvt_corner?pt_corner:
cv->active_tool==cvt_tangent?pt_tangent:
/*cv->active_tool==cvt_pen?*/pt_corner);
int order2 = cv->b.layerheads[cv->b.drawmode]->order2;
int order2_style = (order2 && !(event->u.mouse.state&ksm_meta)) ||
(!order2 && (event->u.mouse.state&ksm_meta));
cv->active_spl = NULL;
cv->active_sp = NULL;
if ( cv->b.sc->inspiro && hasspiro()) {
CVMouseDownSpiroPoint(cv, event);
return;
}
sel = CVAnySelPointList(cv);
if ( sel!=NULL ) {
if ( sel->first->selected ) base = sel->first;
else base = sel->last;
if ( base==cv->p.sp )
return; /* We clicked on the active point, that's a no-op */
}
CVPreserveState(&cv->b);
CVClearSel(cv);
if ( sel!=NULL ) {
sp = cv->p.sp;
cv->lastselpt = base;
ss = sel;
if ( base->next!=NULL )
SplineSetReverse(sel);
if ( base->next!=NULL )
IError("Base point not at end of splineset in CVMouseDownPoint");
if ( sp==NULL || (sp->next!=NULL && sp->prev!=NULL) || sp==base ) {
/* Add a new point */
SplineSetSpirosClear(sel);
sp = SplinePointCreate( cv->p.cx, cv->p.cy );
sp->noprevcp = sp->nonextcp = 1;
sp->nextcpdef = sp->prevcpdef = 1;
sp->pointtype = ptype;
sp->selected = true;
if ( !base->nonextcp && order2_style &&
cv->active_tool==cvt_pen ) {
sp->prevcp = base->nextcp;
sp->noprevcp = false;
sp->me.x = ( sp->prevcp.x + sp->nextcp.x )/2;
sp->me.y = ( sp->prevcp.y + sp->nextcp.y )/2;
sp->nonextcp = false;
sp->pointtype = pt_curve;
} else if ( order2 && !base->nonextcp ) {
sp->prevcp = base->nextcp;
sp->noprevcp = false;
if ( cv->active_tool==cvt_pen ) {
sp->nextcp.x = sp->me.x - (sp->prevcp.x-sp->me.x);
sp->nextcp.y = sp->me.y - (sp->prevcp.y-sp->me.y);
sp->nonextcp = false;
sp->pointtype = pt_curve;
}
}
if ( base->nonextcp )
base->nextcpdef = true;
SplineMake(base,sp,order2);
if ( cv->active_tool!=cvt_pen ) {
SplineCharDefaultNextCP(base);
SplineCharDefaultPrevCP(sp);
}
ss->last = sp;
} else if ( cv->p.spl==sel ) {
/* Close the current spline set */
SplineSetSpirosClear(sel);
cv->joinvalid = true;
cv->joinpos = *sp; cv->joinpos.selected = false;
if ( order2 ) {
if ( base->nonextcp || sp->noprevcp ) {
base->nonextcp = sp->noprevcp = true;
base->nextcp = base->me;
sp->prevcp = sp->me;
} else {
base->nextcp.x = sp->prevcp.x = (base->nextcp.x+sp->prevcp.x)/2;
base->nextcp.y = sp->prevcp.y = (base->nextcp.y+sp->prevcp.y)/2;
}
base->nextcpdef = sp->prevcpdef = true;
}
SplineMake(base,sp,order2);
if ( cv->active_tool!=cvt_pen )
SplineCharDefaultNextCP(base);
SplineCharDefaultPrevCP(sp);
ss->last = sp;
if ( sp->pointtype==pt_tangent ) {
SplineCharTangentNextCP(sp);
if ( sp->next ) SplineRefigure(sp->next );
}
} else {
/* Merge two spline sets */
SplineSetSpirosClear(sel);
CVMergeSPLS(cv,sel, base,sp);
}
sp->selected = true;
if ( base->pointtype==pt_tangent ) {
SplineCharTangentPrevCP(base);
if ( base->prev!=NULL )
SplineRefigure(base->prev);
}
} else if ( cv->p.spline!=NULL ) {
sp = SplineBisect(cv->p.spline,cv->p.t);
cv->joinvalid = true;
cv->joinpos = *sp; cv->joinpos.selected = false;
if ( cv->active_tool==cvt_pen )
ptype = pt_curve;
sp->pointtype = ptype;
if ( ptype==pt_hvcurve ) {
SPHVCurveForce(sp);
}
sp->selected = true;
ss = cv->p.spl;
} else {
ss = chunkalloc(sizeof(SplineSet));
sp = SplinePointCreate( cv->p.cx, cv->p.cy );
ss->first = ss->last = sp;
ss->next = cv->b.layerheads[cv->b.drawmode]->splines;
cv->b.layerheads[cv->b.drawmode]->splines = ss;
sp->nonextcp = sp->noprevcp = 1;
sp->nextcpdef = sp->prevcpdef = 1;
sp->pointtype = ptype;
sp->selected = true;
}
cv->active_spl = ss;
cv->active_sp = sp;
CVSetCharChanged(cv,true);
CVInfoDraw(cv,cv->gw);
SCUpdateAll(sc);
if ( cv->active_tool == cvt_pen )
cv->p.constrain = sp->me;
}
static void CVMouseDownSpiroPoint(CharView *cv, GEvent *event) {
SplineSet *sel, *ss;
SplineChar *sc = cv->b.sc;
spiro_cp *base, *cp;
int base_index, cp_index, i;
char ty = (cv->active_tool==cvt_curve?SPIRO_G4:
cv->active_tool==cvt_hvcurve?SPIRO_G2:
cv->active_tool==cvt_corner?SPIRO_CORNER:
cv->active_tool==cvt_tangent?SPIRO_LEFT:
/*cv->active_tool==cvt_pen?*/SPIRO_RIGHT);
cv->active_spl = NULL;
cv->active_sp = NULL;
sel = CVAnySelPointList(cv);
if ( sel!=NULL ) {
if ( SPIRO_SELECTED(&sel->spiros[0]) ) base_index = 0;
else base_index = sel->spiro_cnt-2;
base = &sel->spiros[base_index];
if ( base==cv->p.spiro )
return; /* We clicked on the active point, that's a no-op */
}
CVPreserveState(&cv->b);
CVClearSel(cv);
if ( sel!=NULL ) {
if ( (cp = cv->p.spiro)!=NULL )
cp_index = cp-cv->p.spl->spiros;
cv->lastselcp = base;
ss = sel;
if ( base_index!=sel->spiro_cnt-2 ) {
SplineSetReverse(sel);
base = &sel->spiros[sel->spiro_cnt-2];
if ( cv->p.spl==sel ) {
cp_index = sel->spiro_cnt-2-cp_index;
cp = &sel->spiros[cp_index];
}
}
if ( cp==NULL || (cp_index!=0 && cp_index!=cv->p.spl->spiro_cnt-2) ||
cp==base || !SPIRO_SPL_OPEN(cv->p.spl)) {
/* Add a new point */
if ( sel->spiro_cnt>=sel->spiro_max )
sel->spiros = realloc(sel->spiros,(sel->spiro_max += 10)*sizeof(spiro_cp));
cp = &sel->spiros[sel->spiro_cnt-1];
cp[1] = cp[0]; /* Move the final 'z' */
cp->x = cv->p.cx;
cp->y = cv->p.cy;
cp->ty = ty;
SPIRO_DESELECT(cp-1);
++sel->spiro_cnt;
} else if ( cv->p.spl==sel ) {
/* Close the current spline set */
sel->spiros[0].ty = ty;
cv->joinvalid = true;
cv->joincp = *cp; SPIRO_DESELECT(&cv->joincp);
} else {
/* Merge two spline sets */
SplinePoint *sp = cp_index==0 ? cv->p.spl->first : cv->p.spl->last;
SplinePoint *basesp = base_index==0 ? sel->first : sel->last;
cv->joincp = *cp; SPIRO_DESELECT(&cv->joincp);
CVMergeSPLS(cv,ss,basesp,sp);
}
} else if ( cv->p.spline!=NULL ) {
/* Add an intermediate point on an already existing spline */
ss = cv->p.spl;
if ( ss->spiro_cnt>=ss->spiro_max )
ss->spiros = realloc(ss->spiros,(ss->spiro_max += 10)*sizeof(spiro_cp));
for ( i=ss->spiro_cnt-1; i>cv->p.spiro_index; --i )
ss->spiros[i+1] = ss->spiros[i];
++ss->spiro_cnt;
cp = &ss->spiros[cv->p.spiro_index+1];
cp->x = cv->p.cx;
cp->y = cv->p.cy;
cp->ty = ty;
ss = cv->p.spl;
cv->joinvalid = true;
cv->joincp = *cp; SPIRO_DESELECT(&cv->joincp);
} else {
/* A new point on a new (open) contour */
ss = chunkalloc(sizeof(SplineSet));
ss->next = cv->b.layerheads[cv->b.drawmode]->splines;
cv->b.layerheads[cv->b.drawmode]->splines = ss;
ss->spiros = malloc((ss->spiro_max=10)*sizeof(spiro_cp));
cp = &ss->spiros[0];
cp->x = cv->p.cx;
cp->y = cv->p.cy;
cp->ty = SPIRO_OPEN_CONTOUR;
cp[1].x = cp[1].y = 0; cp[1].ty = 'z';
ss->spiro_cnt = 2;
}
SPIRO_SELECT(cp);
SSRegenerateFromSpiros(ss);
cv->active_spl = ss;
cv->active_cp = cp;
CVSetCharChanged(cv,true);
CVInfoDraw(cv,cv->gw);
SCUpdateAll(sc);
}
static void CVShadow(CharView *cv,real angle, real outline_width,
real shadow_length,int wireframe) {
CVPreserveState((CharViewBase *) cv);
cv->b.layerheads[cv->b.drawmode]->splines = SSShadow(cv->b.layerheads[cv->b.drawmode]->splines,angle,outline_width,shadow_length,cv->b.sc,wireframe);
CVCharChangedUpdate(&cv->b);
}
void CVMouseUpKnife(CharView *cv, GEvent *event) {
#if !defined(KNIFE_CONTINUOUS)
/* draw a line from (cv->p.cx,cv->p.cy) to (cv->info.x,cv->info.y) */
/* and cut anything intersected by it */
SplineSet *spl, *spl2;
Spline *s, *nexts;
Spline dummy;
SplinePoint dummyfrom, dummyto, *mid, *mid2;
BasePoint inters[9];
extended t1s[10], t2s[10];
int foundsomething = true, ever = false;
int i;
int spiro_index = 0;
memset(&dummy,0,sizeof(dummy));
memset(&dummyfrom,0,sizeof(dummyfrom));
memset(&dummyto,0,sizeof(dummyto));
dummyfrom.me.x = cv->p.cx;
dummyfrom.me.y = cv->p.cy;
dummyto.me.x = cv->info.x;
dummyto.me.y = cv->info.y;
dummyfrom.nextcp = dummyfrom.prevcp = dummyfrom.me;
dummyto.nextcp = dummyto.prevcp = dummyto.me;
dummyfrom.nonextcp = dummyfrom.noprevcp = dummyto.nonextcp = dummyto.noprevcp = true;
dummy.splines[0].d = cv->p.cx;
dummy.splines[0].c = cv->info.x-cv->p.cx;
dummy.splines[1].d = cv->p.cy;
dummy.splines[1].c = cv->info.y-cv->p.cy;
dummy.from = &dummyfrom;
dummy.to = &dummyto;
dummy.islinear = dummy.knownlinear = true;
dummyfrom.next = dummyto.prev = &dummy;
for ( spl = cv->b.layerheads[cv->b.drawmode]->splines; spl!=NULL ; spl = spl->next )
spl->ticked = false;
while ( foundsomething ) {
foundsomething = false;
for ( spl = cv->b.layerheads[cv->b.drawmode]->splines; spl!=NULL && !foundsomething; spl = spl->next ) {
for ( s = spl->first->next; s!=NULL ; ) {
nexts = NULL;
if ( s->to!=spl->first )
nexts = s->to->next;
if ( SplinesIntersect(s,&dummy,inters,t1s,t2s)>0 ) {
if ( event->u.mouse.state&ksm_meta ) {
for ( i=0; i<4 && t1s[i]!=-1 && (t1s[i]<.0001 || t1s[i]>1-.0001); ++i );
if ( i<4 && t1s[i]!=-1 ) {
/* With meta down we just remove the spline rather than */
/* cutting it */
foundsomething = true;
nexts = NULL;
if ( !ever )
CVPreserveState(&cv->b);
ever = true;
if ( spl->first==spl->last ) {
spl->first = s->to;
spl->last = s->from;
} else {
spl2 = chunkalloc(sizeof(SplineSet));
spl2->next = spl->next;
spl->next = spl2;
spl2->first = s->to;
spl2->last = spl->last;
spl->last = s->from;
}
s->to->prev = s->from->next = NULL;
SplineFree(s);
SplineSetSpirosClear(spl);
}
} else {
for ( i=0; i<4 && t1s[i]!=-1 &&
(( t1s[i]<.001 && s->from->prev==NULL ) ||
( t1s[i]>1-.001 && s->to->next == NULL ));
++i );
if ( i<4 && t1s[i]!=-1 ) {
foundsomething = true;
nexts = NULL;
if ( !ever )
CVPreserveState(&cv->b);
ever = true;
spiro_index = -1;
if ( cv->b.sc->inspiro && hasspiro()) {
if ( spl->spiro_cnt!=0 )
spiro_index = SplineT2SpiroIndex(s,t1s[i],spl);
} else
SplineSetSpirosClear(spl);
if ( t1s[i]<.001 ) {
mid = s->from;
} else if ( t1s[i]>1-.001 ) {
mid = s->to;
} else
mid = SplineBisect(s,t1s[i]);
/* if the intersection is close to an end point */
/* cut at the end point, else break in the middle */
/* Cut here, and then */
/* start all over again (we may need to alter the */
/* splineset structure so drastically that we just */
/* can't continue these loops) */
mid->pointtype = pt_corner;
mid2 = chunkalloc(sizeof(SplinePoint));
*mid2 = *mid;
mid2->hintmask = NULL;
mid->next = NULL;
mid2->prev = NULL;
mid2->next->from = mid2;
spl->ticked = true;
if ( spl->first==spl->last ) {
spl->first = mid2;
spl->last = mid;
if ( spiro_index!=-1 )
ReorderSpirosAndAddAndCut(spl,spiro_index);
} else {
spl2 = chunkalloc(sizeof(SplineSet));
spl2->next = spl->next;
spl->next = spl2;
spl2->first = mid2;
spl2->last = spl->last;
spl->last = mid;
if ( spiro_index!=-1 )
SplitSpirosAndAddAndCut(spl,spl2,spiro_index);
spl2->ticked = true;
}
}
}
}
s = nexts;
}
}
}
if ( ever ) {
for ( spl = cv->b.layerheads[cv->b.drawmode]->splines; spl!=NULL ; spl = spl->next ) {
if ( spl->ticked && spl->spiros!=NULL && cv->b.sc->inspiro && hasspiro())
SSRegenerateFromSpiros(spl);
spl->ticked = false;
}
CVCharChangedUpdate(&cv->b);
}
#endif
}
