/*===========================================================================*\ * * * OpenFlipper * * Copyright (c) 2001-2015, RWTH-Aachen University * * Department of Computer Graphics and Multimedia * * All rights reserved. * * www.openflipper.org * * * *---------------------------------------------------------------------------* * This file is part of OpenFlipper. * *---------------------------------------------------------------------------* * * * Redistribution and use in source and binary forms, with or without * * modification, are permitted provided that the following conditions * * are met: * * * * 1. Redistributions of source code must retain the above copyright notice, * * this list of conditions and the following disclaimer. * * * * 2. Redistributions in binary form must reproduce the above copyright * * notice, this list of conditions and the following disclaimer in the * * documentation and/or other materials provided with the distribution. * * * * 3. Neither the name of the copyright holder nor the names of its * * contributors may be used to endorse or promote products derived from * * this software without specific prior written permission. * * * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER * * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * \*===========================================================================*/ //== INCLUDES ================================================================= #include #include #include #include #include "connectionPoint.hh" #include "connection.hh" #include "elementInOut.hh" #include "graphicsScene.hh" #include "elementArea.hh" #include "text.hh" #include "../parser/inout.hh" #define SIZE 20 //== NAMESPACES =============================================================== namespace VSI { //============================================================================= // // CLASS VSI::ConnectionPoint - IMPLEMENTATION // //============================================================================= QColor colors_[] = { QColor(255, 0, 0), QColor(255, 0, 255), QColor(255, 128, 0), QColor(224, 224, 0), QColor(0, 192, 0), QColor(0, 0, 255) }; //------------------------------------------------------------------------------ /// Constructor ConnectionPoint::ConnectionPoint (ElementInOut *_e, QGraphicsItem *_parent) : QGraphicsEllipseItem (_parent), inout_ (_e), width_ (5) { setRect (0, 0, width_, width_); setBrush (QColor (64,64,64)); setAcceptHoverEvents (true); } //------------------------------------------------------------------------------ /// Destructor ConnectionPoint::~ConnectionPoint () { } //------------------------------------------------------------------------------ /// Sets the geometry void ConnectionPoint::setGeometry (const QRectF &_rect) { QGraphicsEllipseItem::setPos (_rect.topLeft ()); QGraphicsLayoutItem::setGeometry (_rect); setRect (0, 0, width_, width_); } //------------------------------------------------------------------------------ // size informations for layouting QSizeF ConnectionPoint::sizeHint (Qt::SizeHint _which, const QSizeF &/*_constraint*/) const { QSizeF sh; switch (_which) { case Qt::MinimumSize: case Qt::PreferredSize: case Qt::MaximumSize: sh = QSizeF(width_, width_); break; default: break; } return sh; } //------------------------------------------------------------------------------ // start a new connection on press void ConnectionPoint::mousePressEvent (QGraphicsSceneMouseEvent *_event) { Connection *c = new Connection (this, scene ()); static_cast(scene ())->setActiveConnection (c); QGraphicsEllipseItem::mousePressEvent(_event); } //------------------------------------------------------------------------------ /// Position for connections QPointF ConnectionPoint::connectPos () { QGraphicsItem *elementArea = dynamic_cast (scene ())->elementArea (); if (inout_->type () == ElementInOut::TypeInput) return elementArea->mapFromScene (mapToScene (QPointF (0, width_ / 2))); return elementArea->mapFromScene (mapToScene (QPointF (width_, width_ / 2))); } //------------------------------------------------------------------------------ /// sets the state void ConnectionPoint::setState(State _state) { setBrush (colors_[_state]); QString stateStr; switch (_state) { case NoValue: stateStr = "[NOT CONNECTED]"; break; case Optional: stateStr = "[OPTIONAL]"; break; case RuntimeInput: stateStr = "[ASK DURING EXECUTION]"; break; case UserInput: stateStr = "[CONSTANT SET]"; break; case Connected: stateStr = "[CONNECTED]"; break; case OutputNotConnected: stateStr = "[NOT CONNECTED]"; break; } stateStr += " " + inout_->inOut ()->longDescription () + " (" + inout_->inOut ()->typeString () + ")"; setToolTip (stateStr); inout_->typeTextItem ()->setToolTip (stateStr); inout_->descriptionTextItem ()->setToolTip (stateStr); } //------------------------------------------------------------------------------ // highlight connection if mouse over void ConnectionPoint::hoverEnterEvent (QGraphicsSceneHoverEvent * /*_event*/) { foreach (Connection *c, inout_->connections ()) { QPen p = c->pen (); if (inOut ()->inOut ()->typeString () == "data") p.setWidth (6); else p.setWidth (4); p.setColor (QColor (0, 0, 255)); c->setPen (p); } } //------------------------------------------------------------------------------ // remove highlight void ConnectionPoint::hoverLeaveEvent (QGraphicsSceneHoverEvent * /*_event*/) { foreach (Connection *c, inout_->connections ()) { QPen p = c->pen (); if (inOut ()->inOut ()->typeString () == "data") p.setWidth (4); else p.setWidth (2); p.setColor (QColor (0, 0, 0)); c->setPen (p); } } //------------------------------------------------------------------------------ /// Sets the diameter void ConnectionPoint::setWidth(int _width) { width_ = _width; updateGeometry (); } //------------------------------------------------------------------------------ // painting void ConnectionPoint::paint(QPainter *_painter, const QStyleOptionGraphicsItem * _option, QWidget *_widget) { QGraphicsEllipseItem::paint (_painter, _option, _widget); float wH = width_ / 2.0; float wT = width_ / 3.0; float wS = width_ / 6.0; QPainterPath path; path.moveTo (0, 0); path.arcTo (0, 0, width_, width_, 0, 360); QRadialGradient rG (QPointF(width_ * 0.8, width_), width_ * 0.8); rG.setColorAt(0, QColor (255, 255, 255, 128)); rG.setColorAt(1, Qt::transparent); _painter->setBrush (rG); _painter->setPen (Qt::NoPen); _painter->drawPath (path); path = QPainterPath (); path.moveTo (1, wH); path.arcTo (1, 1, width_ - 2, width_ - 2, 180, - 165); path.cubicTo (QPointF (wH + wT, wH + wS), QPointF (wH + wS, wH - wS), QPointF (wH, wH)); path.cubicTo (QPointF (wT, wH + wS), QPointF (wS, wH + wS), QPointF (1, wH)); rG.setCenter (wS, 0); rG.setFocalPoint(wS, 0); rG.setRadius (width_); rG.setColorAt(0, Qt::white); rG.setColorAt(1, Qt::transparent); _painter->setBrush (rG); _painter->setPen (Qt::NoPen); _painter->drawPath(path); } //------------------------------------------------------------------------------ }