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/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2004 GRAME, Centre National de Creation Musicale
---------------------------------------------------------------------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
************************************************************************
************************************************************************/
#include "mergeSchema.h"
#include <iostream>
#include <assert.h>
using namespace std;
/**
* Creates a new merge schema. Cables are enlarged to dWire.
* The horizontal gap between the two subschema is such that
* the connections are not too slopy.
*/
schema* makeMergeSchema (schema* s1, schema* s2)
{
// avoid ugly diagram by ensuring at least dWire width
schema * a = makeEnlargedSchema(s1, dWire);
schema * b = makeEnlargedSchema(s2, dWire);
double hgap = (a->height()+b->height())/4;
return new mergeSchema(a,b,hgap);
}
/**
* Constructor for a merge schema s1 :> s2 where the outputs
* of s1 are merged to the inputs of s2. The constructor is
* private in order to enforce the usage of makeMergeSchema
*/
mergeSchema::mergeSchema (schema* s1, schema* s2, double hgap)
: schema( s1->inputs(),
s2->outputs(),
s1->width() + s2->width() + hgap,
max(s1->height(), s2->height()) ),
fSchema1(s1),
fSchema2(s2),
fHorzGap(hgap)
{
}
/**
* Places the two subschema horizontaly, centered, with enough gap for
* the connections
*/
void mergeSchema::place(double ox, double oy, int orientation)
{
beginPlace(ox, oy, orientation);
double dy1 = max(0.0, fSchema2->height()-fSchema1->height()) / 2.0;
double dy2 = max(0.0, fSchema1->height()-fSchema2->height()) / 2.0;
if (orientation == kLeftRight) {
fSchema1->place(ox, oy+dy1, orientation);
fSchema2->place(ox+fSchema1->width()+fHorzGap, oy+dy2, orientation);
} else {
fSchema2->place(ox, oy+dy2, orientation);
fSchema1->place(ox+fSchema2->width()+fHorzGap, oy+dy1, orientation);
}
endPlace();
}
/**
* The inputs of s1 :> s2 are the inputs of s1
*/
point mergeSchema::inputPoint(unsigned int i) const
{
return fSchema1->inputPoint(i);
}
/**
* The outputs of s1 :> s2 are the outputs of s2
*/
point mergeSchema::outputPoint(unsigned int i) const
{
return fSchema2->outputPoint(i);
}
/**
* Draw the two sub schema and the connections between them
*/
void mergeSchema::draw(device& dev)
{
assert(placed());
// draw the two subdiagrams
fSchema1->draw(dev);
fSchema2->draw(dev);
#if 0
unsigned int r = fSchema2->inputs();
assert(r>0);
// draw the connections between them
for (unsigned int i=0; i<fSchema1->outputs(); i++) {
point p = fSchema1->outputPoint(i);
point q = fSchema2->inputPoint(i%r);
dev.trait(p.x, p.y, q.x, q.y);
}
#endif
}
/**
* Draw the two sub schema and the connections between them
*/
void mergeSchema::collectTraits(collector& c)
{
assert(placed());
// draw the two subdiagrams
fSchema1->collectTraits(c);
fSchema2->collectTraits(c);
unsigned int r = fSchema2->inputs();
assert(r>0);
// draw the connections between them
for (unsigned int i=0; i<fSchema1->outputs(); i++) {
point p = fSchema1->outputPoint(i);
point q = fSchema2->inputPoint(i%r);
c.addTrait(trait(p,q));
}
}
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