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/************************************************************************
************************************************************************
FAUST compiler
Copyright (C) 2003-2018 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 "connectorSchema.h"
#include "exception.hh"
using namespace std;
/**
* Connectors are used to ensure unused inputs and outputs
* are drawn
*/
schema* makeConnectorSchema()
{
return new connectorSchema();
}
/**
* A connector is an invisible square fo dWire size
* with 1 input and 1 output
*/
connectorSchema::connectorSchema() : schema(1, 1, dWire, dWire)
{
fInputPoint.push_back(point(0, 0));
fOutputPoint.push_back(point(0, 0));
}
/**
* Define the graphic position of the connectorSchema. Computes the graphic
* position of all the elements, in particular the inputs and outputs.
* This method must be called before draw(), otherwise draw is not allowed
*/
void connectorSchema::place(double x, double y, int orientation)
{
beginPlace(x, y, orientation);
placeInputPoints();
placeOutputPoints();
endPlace();
}
/**
* Returns an input point
*/
point connectorSchema::inputPoint(unsigned int i) const
{
faustassert(placed());
faustassert(i < inputs());
return fInputPoint[i];
}
/**
* Returns an output point
*/
point connectorSchema::outputPoint(unsigned int i) const
{
faustassert(placed());
faustassert(i < outputs());
return fOutputPoint[i];
}
/**
* Computes the input points according to the position and the
* orientation of the connectorSchema
*/
void connectorSchema::placeInputPoints()
{
int N = inputs();
if (orientation() == kLeftRight) {
double px = x();
double py = y() + (height() - dWire * (N - 1)) / 2;
for (int i = 0; i < N; i++) {
fInputPoint[i] = point(px, py + i * dWire);
}
} else {
double px = x() + width();
double py = y() + height() - (height() - dWire * (N - 1)) / 2;
for (int i = 0; i < N; i++) {
fInputPoint[i] = point(px, py - i * dWire);
}
}
}
/**
* Computes the output points according to the position and the
* orientation of the connectorSchema
*/
void connectorSchema::placeOutputPoints()
{
int N = outputs();
if (orientation() == kLeftRight) {
double px = x() + width();
double py = y() + (height() - dWire * (N - 1)) / 2;
for (int i = 0; i < N; i++) {
fOutputPoint[i] = point(px, py + i * dWire);
}
} else {
double px = x();
double py = y() + height() - (height() - dWire * (N - 1)) / 2;
for (int i = 0; i < N; i++) {
fOutputPoint[i] = point(px, py - i * dWire);
}
}
}
/**
* Draw the connectorSchema on the device. This methos can only
* be called after the connectorSchema have been placed
*/
void connectorSchema::draw(device& dev)
{
faustassert(placed());
// nothing to do
}
/**
* Draw horizontal arrows from the input points to the
* connectorSchema rectangle
*/
void connectorSchema::collectTraits(collector& c)
{
collectInputWires(c);
collectOutputWires(c);
}
/**
* Draw horizontal arrows from the input points to the
* connectorSchema rectangle
*/
void connectorSchema::collectInputWires(collector& c)
{
double dx = (orientation() == kLeftRight) ? dHorz : -dHorz;
for (unsigned int i = 0; i < inputs(); i++) {
point p = fInputPoint[i];
c.addTrait(trait(point(p.x, p.y), point(p.x + dx, p.y))); // in->out direction
c.addInput(point(p.x + dx, p.y));
}
}
/**
* Draw horizontal line from the connectorSchema rectangle to the
* output points
*/
void connectorSchema::collectOutputWires(collector& c)
{
double dx = (orientation() == kLeftRight) ? dHorz : -dHorz;
for (unsigned int i = 0; i < outputs(); i++) {
point p = fOutputPoint[i];
c.addTrait(trait(point(p.x - dx, p.y), point(p.x, p.y))); // in->out direction
c.addOutput(point(p.x - dx, p.y));
}
}
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