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; } } } } }