void QGraph::pintafunc(QPaintDevice *qpd){
QPoint ultim(0,0), act(0,0);
QPen pfunc;
QPen ccursor;
buffer = QPixmap(this->width(), this->height());
buffer.fill(Qt::white);
pfunc.setColor(QColor(0,150,0));
pfunc.setCapStyle(Qt::RoundCap);
pfunc.setWidth(2);
if(qpd)
finestra.begin(qpd);
else
finestra.begin(&buffer, this);
bool nan=false, outside=false;
dibuixa_eixos(&finestra);
finestra.setPen(pfunc);
if(funclist.count()>0){
for (QValueList<function>::iterator it = funclist.begin(); it != funclist.end(); ++it ){
if((*it).isShown()){
pfunc.setColor((*it).color());
pfunc.setWidth((*it).selected()+1);
finestra.setPen(pfunc);
int i = (*it).npoints();
register int j;
for(/*register int*/ j=0; j<i;j++){
if(!nan){
act=toWidget((*it).points[j].x(), (*it).points[j].y(), &nan);
// qDebug("%4d -- %4d", act.y(), act.x());//y->2
if(act.x()!=ultim.x() && act.x() > 0 && (act.y() > 0 || (act.y()==0 && !outside)) && act.x() < this->width() && act.y() <= this->height()){
finestra.drawLine(ultim, act);
outside=false;
} else if(act.x() > 0 && act.x() < this->width() && ((act.y() < 0 && ultim.y()>0) || (act.y() > this->height() && ultim.y() < this->height()))){
bool out;
QPoint act2 = act;
trunca(&ultim, &act2, &out);
if(!outside)
finestra.drawLine(ultim, act2);
outside = out;
}
}else
act=toWidget((*it).points[j].x(), (*it).points[j].y(), &nan);
if(act.x() != ultim.x())
ultim=act;
}
}
}
}
valid=true;
finestra.end();
}
void QGraph::mouseMoveEvent(QMouseEvent *e){
mark=calcImage(fromWidget(e->pos()));
if(pushed & Qt::MidButton && ant != toViewport(e->pos())){
QPoint rel = e->pos() - press - (toWidget(.5,.5)-toWidget(0.,0.));
rel = toViewport(rel);
viewport.setLeft(viewport.left() - rel.x()); viewport.setRight(viewport.right() - rel.x());
viewport.setTop(viewport.top() - rel.y()); viewport.setBottom(viewport.bottom() - rel.y());
update_points();
press = e->pos();
ant = toViewport(e->pos());
valid=false;
sendStatus(QString("(%1, %2)-(%3, %4)").arg(viewport.left()).arg(viewport.top()).arg(viewport.right()).arg(viewport.bottom()));
} else if(pushed == Qt::LeftButton) {
last = e->pos();
} else if(pushed==0)
sendStatus(QString("x=%1 y=%2") .arg(mark.x(),3,'f',2).arg(mark.y(),3,'f',2));
this->repaint(false);
}
void QGraph::dibuixa_eixos(QPainter *finestra){
QPen ceixos;
QPoint centre = toWidget(0.,0.);
double x;
// qDebug("(%d, %d)-(%d, %d)", viewport.left(), viewport.top(), viewport.right(), viewport.bottom());
if(m_squares) {
// ceixos.setStyle(Qt::DotLine);
ceixos.setStyle(Qt::SolidLine);
ceixos.setColor(QColor(225,225,255));
finestra->setPen(ceixos);
} else {
ceixos.setColor(QColor(100,100,255));
ceixos.setStyle(Qt::SolidLine);
finestra->setPen(ceixos);
}
for(x=viewport.left(); x<(viewport.right()+1); x+=1.0) {// ralletes X
if(m_squares)
finestra->drawLine(QPoint(toWidget(x,viewport.top()).x(), this->height()), QPoint( toWidget(x,viewport.bottom()+1).x(), 0));
else
finestra->drawLine(toWidget(x,0.0f), toWidget(x,0.0f)+QPoint(0,-3));
}
for(x=viewport.top(); x>viewport.bottom(); x-=1.0) { // ralletes y
if(m_squares)
finestra->drawLine(toWidget(viewport.left(),x), toWidget(viewport.right()+1, x));
else
finestra->drawLine(toWidget(0.0f,x), toWidget(0.0f,x)+QPoint(3,0));
}
ceixos.setColor(QColor(100,100,255));
ceixos.setStyle(Qt::SolidLine);
finestra->setPen(ceixos);
//dibuixa eixos viewport
finestra->drawLine(QPoint(0, centre.y()), QPoint(this->width(), centre.y()));
finestra->drawLine(QPoint(centre.x(), 0), QPoint(centre.x(),this->height()));
//EO dibuixa eixos viewport
//write coords
finestra->drawText(QPoint(3+this->width()/2, 10 ), QString("%1").arg(-viewport.bottom()));//Botom coords
finestra->drawText(QPoint(3+this->width()/2, this->height()-5 ), QString("%1").arg(-viewport.top())); //Top coords
finestra->drawText(QPoint(8 , this->height()/2-5), QString("%1").arg(viewport.left())); //Left coords
finestra->drawText(QPoint(this->width()-30 , this->height()/2-5), QString("%1").arg(viewport.right())); //Right coords
//EO write coords
}
void QGraph::paintEvent( QPaintEvent * ){
if(!valid)
pintafunc(NULL);
front = buffer;
finestra.begin(&front, this);
QPen pfunc;
QPen ccursor;
QPoint ultim;
pfunc.setColor(QColor(0,150,0));
pfunc.setCapStyle(Qt::RoundCap);
pfunc.setWidth(2);
if(this->hasMouseTracking() && this->cursor().shape() != Qt::PointingHandCursor) {
ccursor.setColor(QColor(0xc0,0,0));
ccursor.setStyle(Qt::SolidLine);
finestra.setPen(ccursor);
finestra.drawLine(toWidget(viewport.left(),mark.y()), QPoint(this->width(), toWidget(viewport.right()+1, mark.y()).y()));
finestra.drawLine(QPoint(toWidget(mark.x(),viewport.top()).x(), this->height()), QPoint( toWidget(mark.x(),viewport.bottom()+1).x(), 0));
int w=110, h=13;
ultim = toWidget(mark.x(), mark.y(), NULL);
if(ultim.x()+w+10 > this->width())
ultim.setX(this->width()-w-10);
if(ultim.y()+h+10 > this->height())
ultim.setY(this->height()-h-10);
if(ultim.y() < 0)
ultim.setY(-10);
finestra.setPen(QPen(QColor(0,0,0)));
finestra.drawText(ultim.x()+15, ultim.y()+15, QString("x=%1 y=%2") .arg(mark.x(),3,'f',2).arg(mark.y(),3,'f',2));
#if 0
ultim = toWidget(mark.x(), mark.y(), NULL);
//micepos->setText(QString("<qt>x=<b>%1</b> y=<b>%1</b></qt>") .arg(mark.x(),3,'f',2).arg(mark.y(),3,'f',2));
if(ultim.x()+micepos->width()+10 > this->width())
ultim.setX(this->width()-micepos->width()-10);
if(ultim.y()+micepos->height()+10 > this->height())
ultim.setY(this->height()-micepos->height()-10);
else if(ultim.y() < 0)
ultim.setY(-10);
micepos->setGeometry(ultim.x()+10, ultim.y()+10, 160, 23);
#endif
} else if(this->hasMouseTracking() && pushed==Qt::LeftButton) {
QBrush rectbr(yellow);
rectbr.setStyle(Dense6Pattern);
ccursor.setColor(QColor(0xc0,0,0));
ccursor.setStyle(Qt::SolidLine);
finestra.setPen(ccursor);
finestra.setBrush(rectbr);
// micepos->hide();
QPoint p=last;
QPoint p1=press;
finestra.drawRect(QRect(p1,p));
/*QPoint p=toViewport(last)+viewport.topLeft(); //REAL mode
QPoint p1=toViewport(press)+viewport.topLeft();
p=toWidget((double)p.x(), (double)p.y(), NULL);
p1=toWidget((double)p1.x(), (double)p1.y(), NULL);
finestra.drawRect(QRect(p1,p));*/
} //else micepos->hide();
// qDebug("<%d>", pushed);
finestra.end();
///////////////////////////////
//bitBlt(this,0,0,&buffer,0,0,this->width(),this->height());
bitBlt(this,0,0,&front,0,0,this->width(),this->height());
}
void SetupItem::externalUpdated(std::string eventName A_UNUSED)
{
load();
toWidget();
}
void SetupItem::cancel(std::string eventName A_UNUSED)
{
load();
toWidget();
}
