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// curvearrow.cpp - Curvearrow's implementation of functions
#include <qobject.h>
#include <iostream.h>
#include <math.h>
#include "render2d.h"
#include "drawable.h"
#include "curvearrow.h"
#include "bondedit.h"
#include "defs.h"
CurveArrow::CurveArrow(Render2D *r1, QObject *parent, const char *name)
: Drawable(parent, name)
{
r = r1;
highlighted = false;
}
QString CurveArrow::ToXML(QString xml_id) {
QString s, n1;
// begin curvearrow
s.append("<curvearrow id=");
s.append(xml_id);
s.append(">\n");
// write Start
s.append("<Start>");
n1.setNum(start->x);
s.append(n1);
s.append(" ");
n1.setNum(start->y);
s.append(n1);
s.append("</Start>\n");
// write End
s.append("<End>");
n1.setNum(end->x);
s.append(n1);
s.append(" ");
n1.setNum(end->y);
s.append(n1);
s.append("</End>\n");
// write type
s.append("<curvetype>");
s.append(which);
s.append("</curvetype>\n");
// write color
s.append("<color>");
n1.setNum(color.red());
s.append(n1);
s.append(" ");
n1.setNum(color.green());
s.append(n1);
s.append(" ");
n1.setNum(color.blue());
s.append(n1);
s.append("</color>\n");
// end curvearrow
s.append("</curvearrow>\n");
return s;
}
// set CurveArrow from XDrawChem-format XML
void CurveArrow::FromXML(QString xml_tag) {
int i1, i2;
i1 = xml_tag.find("<Start>");
i2 = xml_tag.find("</Start>") + 8;
SetStartFromXML(xml_tag.mid(i1, i2 - i1));
i1 = xml_tag.find("<End>");
i2 = xml_tag.find("</End>") + 6;
SetEndFromXML(xml_tag.mid(i1, i2 - i1));
i1 = xml_tag.find("<curvetype>") + 11;
i2 = xml_tag.find("</curvetype>");
which = xml_tag.mid(i1, i2 - i1);
cout << which << endl;
i1 = xml_tag.find("<color>");
if (i1 >= 0) {
i2 = xml_tag.find("</color>") + 8;
SetColorFromXML(xml_tag.mid(i1, i2 - i1));
}
}
void CurveArrow::Render(void)
{
QColor c1;
if (highlighted)
c1 = QColor(255,0,0);
else
c1 = color;
r->drawCurveArrow(start->toQPoint(), end->toQPoint(), c1, which);
}
void CurveArrow::Edit() {
int lsty;
if (which == "CW90") lsty = CA_CW90;
if (which == "CW180") lsty = CA_CW180;
if (which == "CW270") lsty = CA_CW270;
if (which == "CCW90") lsty = CA_CCW90;
if (which == "CCW180") lsty = CA_CCW180;
if (which == "CCW270") lsty = CA_CCW270;
BondEditDialog be(r, "curved arrow editor", start, end, TYPE_CURVEARROW, 0,
0, 0, lsty, color);
if ( !be.exec() ) return;
cout << "change" << endl;
lsty = be.Style();
color = be.Color();
switch (lsty) {
case CA_CW90:
which = "CW90";
break;
case CA_CW180:
which = "CW180";
break;
case CA_CW270:
which = "CW270";
break;
case CA_CCW90:
which = "CCW90";
break;
case CA_CCW180:
which = "CCW180";
break;
case CA_CCW270:
which = "CCW270";
break;
}
}
int CurveArrow::Type(void)
{
return TYPE_CURVEARROW;
}
bool CurveArrow::Find(DPoint *target) {
if (start == target) return true;
if (end == target) return true;
return false;
}
// Do not allow connections to this object.
// Simplest way to do this, I think, is to disallow this function
DPoint * CurveArrow::FindNearestPoint(DPoint *target, double &dist) {
dist = 99999.0;
return 0;
}
Drawable * CurveArrow::FindNearestObject(DPoint *target, double &dist) {
dist = DistanceToLine(start, end, target);
return this;
}
void CurveArrow::setPoints(DPoint *s, DPoint *e) {
start = s;
end = e;
}
/*
QRect CurveArrow::BoundingBox() {
if (highlighted == false)
return QRect( QPoint(999,999), QPoint(0,0) );
int top, bottom, left, right, swp;
left = (int)start->x;
top = (int)start->y;
right = (int)end->x;
bottom = (int)end->y;
if ( (which == QString("CW180")) || (which == QString("CCW180")) ) {
QPoint midp((start->x + end->x) / 2,
(start->y + end->y) / 2);
double dx = start->x - (double)midp.x();
double dy = start->y - (double)midp.y();
double dist = sqrt( dx*dx + dy*dy );
int dist1 = (int)dist + 1;
top = midp.y() - dist1;
left = midp.x() - dist1;
bottom = midp.y() + dist1;
right = midp.x() + dist1;
}
if (bottom < top) { swp = top; top = bottom; bottom = swp; }
if (right < left) { swp = left; left = right; right = swp; }
return QRect( QPoint(left,top), QPoint(right,bottom) );
}
*/
QRect CurveArrow::BoundingBox() {
if (highlighted == false)
return QRect( QPoint(999,999), QPoint(0,0) );
int top, bottom, left, right, swp;
QPoint midp((start->x + end->x) / 2,
(start->y + end->y) / 2);
double dx = start->x - (double)midp.x();
double dy = start->y - (double)midp.y();
double dist = sqrt( dx*dx + dy*dy );
int dist1 = (int)dist + 1;
top = midp.y() - dist1;
left = midp.x() - dist1;
bottom = midp.y() + dist1;
right = midp.x() + dist1;
if (bottom < top) { swp = top; top = bottom; bottom = swp; }
if (right < left) { swp = left; left = right; right = swp; }
return QRect( QPoint(left,top), QPoint(right,bottom) );
}
bool CurveArrow::WithinRect(QRect n, bool shiftdown) {
if ( DPointInRect(start, n) && DPointInRect(end, n) )
highlighted = true;
else
highlighted = false;
return highlighted;
}
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