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// arrow.cpp - Arrow's implementation of functions
#include <qobject.h>
#include <iostream.h>
#include <math.h>
#include "render2d.h"
#include "drawable.h"
#include "arrow.h"
#include "bondedit.h"
#include "defs.h"
Arrow::Arrow(Render2D *r1, QObject *parent, const char *name)
: Drawable(parent, name)
{
r = r1;
highlighted = false;
style = ARROW_REGULAR;
}
QString Arrow::ToXML(QString xml_id) {
QString s, n1;
// begin arrow
s.append("<arrow 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 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");
// write style
s.append("<style>");
n1.setNum(style);
s.append(n1);
s.append("</style>\n");
// end arrow
s.append("</arrow>\n");
return s;
}
QString Arrow::ToCDXML(QString xml_id) {
QString s, n1;
// begin arrow
s.append("<graphic id=\"");
s.append(xml_id);
s.append("\" BoundingBox=\"");
n1.setNum(end->x);
s.append(n1);
s.append(" ");
n1.setNum(end->y);
s.append(n1);
s.append(" ");
n1.setNum(start->x);
s.append(n1);
s.append(" ");
n1.setNum(start->y);
s.append(n1);
s.append("\" ");
if (style == ARROW_REGULAR)
s.append("GraphicType=\"Line\" ArrowType=\"FullHead\" HeadSize=\"1000\"");
if (style == ARROW_DASH)
s.append("GraphicType=\"Line\" LineType=\"Dashed\" ArrowType=\"FullHead\" HeadSize=\"1000\"");
if (style == ARROW_BI1)
s.append("GraphicType=\"Line\" ArrowType=\"Resonance\" HeadSize=\"1000\"");
if (style == ARROW_BI2)
s.append("GraphicType=\"Line\" ArrowType=\"Equilibrium\" HeadSize=\"1000\"");
if (style == ARROW_RETRO)
s.append("GraphicType=\"Line\" ArrowType=\"RetroSynthetic\" HeadSize=\"1000\"");
s.append("/>\n");
return s;
}
// set Arrow from XDrawChem-format XML
void Arrow::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("<style>");
if (i1 >= 0) {
i2 = xml_tag.find("</style>") + 8;
style = xml_tag.mid(i1 + 7, 1).toInt();
}
i1 = xml_tag.find("<color>");
if (i1 >= 0) {
i2 = xml_tag.find("</color>") + 8;
SetColorFromXML(xml_tag.mid(i1, i2 - i1));
}
}
void Arrow::Render(void)
{
QColor c1;
if (highlighted)
c1 = QColor(255,0,0);
else
c1 = color;
r->drawArrow(start->toQPoint(), end->toQPoint(), c1, style);
}
int Arrow::Type(void)
{
return TYPE_ARROW;
}
void Arrow::Edit() {
cout << "edit arrow" << endl;
BondEditDialog be(r, "arrow editor", start, end, TYPE_ARROW, 0, 0, 0,
style, color);
if ( !be.exec() ) return;
cout << "change" << endl;
style = be.Style();
color = be.Color();
}
int Arrow::Orientation() {
double a1 = getAngle(start, end);
if (a1 < 45.0) return ARROW_HORIZONTAL;
if (a1 < 135.0) return ARROW_VERTICAL;
if (a1 < 225.0) return ARROW_HORIZONTAL;
if (a1 < 315.0) return ARROW_VERTICAL;
return ARROW_HORIZONTAL;
}
QPoint Arrow::Midpoint() {
QPoint a;
a.setX((start->x + end->x) / 2);
a.setY((start->y + end->y) / 2);
return a;
}
bool Arrow::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 * Arrow::FindNearestPoint(DPoint *target, double &dist) {
dist = 99999.0;
return 0;
}
Drawable * Arrow::FindNearestObject(DPoint *target, double &dist) {
dist = DistanceToLine(start, end, target);
return this;
}
void Arrow::setPoints(DPoint *s, DPoint *e) {
start = s;
end = e;
}
QRect Arrow::BoundingBox() {
if (highlighted == false)
return QRect( QPoint(999,999), QPoint(0,0) );
int top, bottom, left, right, swp;
top = (int)start->y;
left = (int)start->x;
bottom = (int)end->y;
right = (int)end->x;
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 Arrow::WithinRect(QRect n, bool shiftdown) {
if ( DPointInRect(start, n) && DPointInRect(end, n) )
highlighted = true;
else
highlighted = false;
return highlighted;
}
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