void StitcherView::drawConstraintFit(geometrically_constrained_system *gc){
for(int i = 0;i<gc->n_constraints;i++){
GeometryConstraintType type = gc->constraints[i].type;
double fit = gc->constraints[i].best_fit;
if(type == RadialLineConstraint){
qreal x1,x2,y1,y2;
qreal scale = 10000;
x1 = cos(fit)*scale;
y1 = sin(fit)*scale;
x2 = -x1;
y2 = -y1;
QGraphicsLineItem * item = new QGraphicsLineItem(x1,y1,x2,y2);
QPen p = item->pen();
p.setStyle(Qt::DashLine);
QVector<qreal> dashes;
dashes << 25 << 15;
p.setDashPattern(dashes);
p.setColor(Qt::white);
item->setPen(p);
item->setZValue(10000);
scene()->addItem(item);
constraintFit.append(item);
}else if(type == CircleConstraint){
double radius = fit;
QGraphicsEllipseItem * item = new QGraphicsEllipseItem(-radius,-radius,2*radius,2*radius);
QPen p = item->pen();
p.setStyle(Qt::DashLine);
QVector<qreal> dashes;
dashes << 25 << 15;
p.setDashPattern(dashes);
p.setColor(Qt::white);
item->setPen(p);
item->setZValue(10000);
scene()->addItem(item);
constraintFit.append(item);
}
sp_vector ** cp_g = control_point_list_to_global(gc->constraints[i].points,gc->constraints[i].n_points);
QColor color = QColor::fromHsvF(1.0/3+(double)i/gc->n_constraints,1,1,1);
for(int j = 0;j<gc->constraints[i].n_points;j++){
QGraphicsEllipseItem * point = new QGraphicsEllipseItem(-4,-4,8,8);
point->setZValue(10001);
point->setPos(sp_vector_get(cp_g[j],0),sp_vector_get(cp_g[j],1));
point->setPen(QPen(color, 2));
point->setFlags(point->flags() | QGraphicsItem::ItemIgnoresTransformations);
scene()->addItem(point);
constraintFit.append(point);
}
}
}
bool ZipplXmlReader::read( QIODevice *dev )
{
setDevice( dev );
bool res = true;
bool metaMode = false;
mCurrParent = 0;
mCurrSpot = 0;
QGraphicsScene *scene = mGraphWidget->scene();
int spotID = 0;
while (!atEnd()) {
readNext();
if( isStartElement() ) {
qDebug() << "XML name: " << name();
if( name() == "presentation") {
// presentation mode: debug & presentation
QString mode = attributes().value("mode").toString();
if( !mode.isEmpty() ) mMode = mode;
mPath = attributes().value("path").toString();
if( !mPath.endsWith('/') ) mPath += "/";
qreal dx = qrealAttrib("width") / -2.0;
qreal dy = qrealAttrib("height") / -2.0;
QRectF rect( dx, dy, -2.0*dx, -2.0*dy );
scene->setSceneRect( rect );
} else if( name() == "meta" ) {
metaMode = true;
} else if( name() == "title" && metaMode ) {
mPresentationTitle = readElementText();
} else if( name() == "description" && metaMode ) {
mPresentationDescr = readElementText();
} else if( name() == "date" && metaMode ) {
mPresentationDate = readElementText();
} else if( name() == "name" && metaMode ) {
mAuthorName = readElementText();
} else if( name() == "email" && metaMode ) {
mAuthorEmail = readElementText();
} else if( name() == "tocentry" ) {
if( mCurrSpot ) {
mCurrSpot->setData( TOCENTRY, readElementText() );
}
} else if( name() == "spot" ) {
if( mCurrParent != 0 ) {
qDebug() << "Strange: Current Parent should be zero here!";
}
QGraphicsRectItem *rectItem = new QGraphicsRectItem( );
rectItem->setPen( pen( rectItem->pen(), QColor("#aeaeae") ));
mCurrParent = rectItem;
mCurrSpot = rectItem;
mCurrParent->setData( ID, QVariant( spotID++ ));
mCurrParent->setPos( position() );
rectItem->setBrush( brush( rectItem->brush() ) );
scene->addItem( mCurrParent );
mSpots.append( mCurrParent );
// Prepare the hidden items list
GraphicsItemList list;
mHiddenItems.insert( mCurrParent, list );
} else if( name() == "hidden" ) {
QGraphicsRectItem *rectItem = new QGraphicsRectItem( mCurrParent, scene );
rectItem->setPen( QPen( QColor( 240, 240, 240 )));
// append this hidden item to the list of hiddens of the parent spot.
GraphicsItemList list = mHiddenItems[mCurrSpot];
list.append( rectItem );
mHiddenItems[mCurrSpot] = list;
mCurrParent = rectItem;
mCurrParent->setData( ID, QVariant( spotID++ ));
} else if( name() == "rect" ) {
if( mCurrParent ) { // within a spot
qDebug() << "Creating a rectangle!";
QGraphicsRectItem *rectItem = new QGraphicsRectItem( mCurrParent, scene );
qreal width = qrealAttrib( "width" );
qreal height = qrealAttrib( "height" );
QPointF pos = position();
if( width > 0 && height > 0 ) {
rectItem->setRect( pos.x(), pos.y(), width, height );
} else {
rectItem->setPos( pos );
}
rectItem->setPen( pen( rectItem->pen() ) );
mCurrParent = rectItem;
}
} else if( name() == "circle" ) {
QPointF pos = position();
QGraphicsEllipseItem *ellipse = new QGraphicsEllipseItem( mCurrParent, scene );
// ellipse->setBrush( getBrush() );
qreal r = 2.0 * qrealAttrib( "r" );
QRectF rect( pos, QSizeF( r, r ) );
ellipse->setPen( pen( ellipse->pen() ) );
ellipse->setRect( rect );
} else if( name() == "text" ) {
QGraphicsSimpleTextItem *textItem = new QGraphicsSimpleTextItem( mCurrParent, scene );
QString font = attributes().value("font").toString();
QString size = attributes().value("size").toString();
QFont currFont = textItem->font();
if( !font.isEmpty() ) {
currFont.setFamily( font );
textItem->setFont( currFont );
}
if( !size.isEmpty() ) {
currFont.setPointSize( size.toInt() );
textItem->setFont( currFont );
}
textItem->setPos( position() );
// set the brush
QBrush b( textItem->brush() );
b.setColor( color() );
textItem->setBrush( b );
QString text = readElementText();
textItem->setText( text );
} else if( name() == "image" ) {
if( handleImg( scene ) ) {
}
}
} else if( isEndElement() ) {
qDebug( ) << "XML CLOSE: " << name().toString();
if( name() == "spot" || name() == "toc" ) {
QRectF rect = mCurrParent->childrenBoundingRect();
rect.setX(0);
rect.setY(0);
qgraphicsitem_cast<QGraphicsRectItem*>(mCurrParent)->setRect( rect);
mCurrParent = 0;
} else if( name() == "rect" ) {
QGraphicsRectItem *item = qgraphicsitem_cast<QGraphicsRectItem*>(mCurrParent);
if( item->rect().isEmpty() )
item->setRect( mCurrParent->childrenBoundingRect() );
mCurrParent = mCurrParent->parentItem();
} else if( name() == "hidden") {
mCurrParent->setOpacity( 0.0 );
mCurrParent = mCurrParent->parentItem();
} else if( name() == "meta" ) {
metaMode = false;
}
}
}
createToc( scene );
return res;
}
void StitcherView::mouseReleaseEvent( QMouseEvent * event){
ImageView::mouseReleaseEvent(event);
if(mode == Line && event->button() & Qt::LeftButton){
setMode(Default);
QGraphicsLineItem * line = new QGraphicsLineItem(QLineF(mapToScene(lineOrigin),mapToScene(lineEnd)));
line->setData(0,QString("Helper"));
line->setZValue(11);
QPen pen = line->pen();
pen.setColor(Qt::white);
pen.setStyle(Qt::SolidLine);
line->setPen(pen);
graphicsScene->addItem(line);
}else if(mode == Circle && event->button() & Qt::LeftButton){
setMode(Default);
QPointF lineOriginF = mapToScene(lineOrigin);
QPointF lineEndF = mapToScene(lineEnd);
QPointF circleCenter = (lineOriginF+lineEndF)/2;
qreal circleRadius = sqrt((lineOriginF-lineEndF).x()* (lineOriginF-lineEndF).x()+
(lineOriginF-lineEndF).y()* (lineOriginF-lineEndF).y())/2;
if(QApplication::keyboardModifiers() & Qt::ShiftModifier){
circleCenter = mapFromScene(QPointF(0,0));
circleRadius = sqrt((circleCenter-lineEnd).x()* (circleCenter-lineEnd).x()+
(circleCenter-lineEnd).y()* (circleCenter-lineEnd).y());
circleCenter = QPointF(0,0);
}
QGraphicsEllipseItem * circle = new QGraphicsEllipseItem(QRect(circleCenter.x()-circleRadius,circleCenter.y()-circleRadius,circleRadius*2,circleRadius*2));
circle->setData(0,QString("Helper"));
circle->setZValue(11);
QPen pen = circle->pen();
pen.setColor(Qt::white);
pen.setStyle(Qt::SolidLine);
circle->setPen(pen);
graphicsScene->addItem(circle);
}else if(mode == AddPoint && event->button() & Qt::LeftButton){
QList<QGraphicsItem *> it = items(event->pos());
for(int i = 0; i < it.size(); i++){
if(ImageItem * item = qgraphicsitem_cast<ImageItem *>(it.at(i))){
item->addControlPoint(item->mapFromScene(mapToScene(event->pos())));
}
}
}else if(mode == DeletePoint && event->button() & Qt::LeftButton){
QList<QGraphicsItem *> it = items(event->pos());
for(int i = 0; i < it.size(); i++){
if(ImageItem * item = qgraphicsitem_cast<ImageItem *>(it.at(i))){
item->deleteControlPoint(item->mapFromScene(mapToScene(event->pos())));
}
}
}else if(mode == DeleteGuide && event->button() & Qt::LeftButton){
QList<QGraphicsItem *> it = items(event->pos());
QPointF pos = mapToScene(event->pos());
/* 10 px tolerance radius, delete the closest */
for(int i = 0; i < it.size(); i++){
if(QString("Helper") == it[i]->data(0)){
QGraphicsEllipseItem * elipse = qgraphicsitem_cast<QGraphicsEllipseItem *>(it[i]);
if(elipse){
// Check if click position close to the line
QPointF origin = elipse->rect().center();
qreal radius = elipse->rect().height()/2;
QPointF d = origin-pos;
if(abs(sqrt(d.x()*d.x()+d.y()*d.y())-radius) < 10){
delete elipse;
}
}
QGraphicsLineItem * line = qgraphicsitem_cast<QGraphicsLineItem *>(it[i]);
if(line){
delete line;
}
}
}
}
}
