/*******************************************************************

Part of the Fritzing project - http://fritzing.org
Copyright (c) 2007-2012 Fachhochschule Potsdam - http://fh-potsdam.de

Fritzing is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Fritzing is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Fritzing.  If not, see <http://www.gnu.org/licenses/>.

********************************************************************

$Revision: 6912 $:
$Author: irascibl@gmail.com $:
$Date: 2013-03-09 08:18:59 +0100 (Sa, 09. Mrz 2013) $

********************************************************************/

#include "virtualwire.h"
#include "../connectors/connectoritem.h"
#include "../model/modelpart.h"

const double VirtualWire::ShapeWidthExtra = 4;

VirtualWire::VirtualWire( ModelPart * modelPart, ViewLayer::ViewID viewID,  const ViewGeometry & viewGeometry, long id, QMenu * itemMenu  ) 
	: ClipableWire(modelPart, viewID,  viewGeometry,  id, itemMenu, false)
{
	// note: at this point in fritzing development, the VirtualWire class is only ever used for ratsnest wires
	modelPart->setLocalProp("ratsnest", "true");
	m_colorWasNamed = false;
	setFlag(QGraphicsItem::ItemIsSelectable, false);
}

VirtualWire::~VirtualWire() {
}

void VirtualWire::paint (QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget ) {	
	if (m_hidden) return;
	
	m_hoverCount = m_connectorHoverCount = 0;			// kills any highlighting
	Wire::paint(painter, option, widget);
}

void VirtualWire::connectionChange(ConnectorItem * onMe, ConnectorItem * onIt, bool connect) {
	checkVisibility(onMe, onIt, connect);
}

FSvgRenderer * VirtualWire::setUpConnectors(ModelPart * modelPart, ViewLayer::ViewID viewID) {
	FSvgRenderer * renderer = Wire::setUpConnectors(modelPart, viewID);
	hideConnectors();
	return renderer;
}

void VirtualWire::hideConnectors() {
	// m_connector0 and m_connector1 may not yet be initialized
	foreach (ConnectorItem * item, cachedConnectorItems()) {
		item->setHidden(true);
	}
}

void VirtualWire::inactivateConnectors() {
	// m_connector0 and m_connector1 may not yet be initialized
	foreach (ConnectorItem * item, cachedConnectorItems()) {
		item->setInactive(true);
	}
}

void VirtualWire::setInactive(bool inactivate) {
	ItemBase::setInactive(inactivate);
	
	if (!inactivate) {
		inactivateConnectors();
	}
}

void VirtualWire::setHidden(bool hide) {
	ItemBase::setHidden(hide);
	
	if (!hide) {
		hideConnectors();
	}
}

void VirtualWire::tempRemoveAllConnections() {
	ConnectorItem * connectorItem = connector0();
	for (int j = connectorItem->connectedToItems().count() - 1; j >= 0; j--) {
		connectorItem->connectedToItems()[j]->tempRemove(connectorItem, false);
		connectorItem->tempRemove(connectorItem->connectedToItems()[j], false);
	}
	connectorItem = connector1();
	for (int j = connectorItem->connectedToItems().count() - 1; j >= 0; j--) {
		connectorItem->connectedToItems()[j]->tempRemove(connectorItem, false);
		connectorItem->tempRemove(connectorItem->connectedToItems()[j], false);
	}
}	

void VirtualWire::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
	// ignore clicks where our connectors are supposed to be
	// so the click can percolate to some other graphicsitem that can use it

	QList<QGraphicsItem *> items = scene()->items(event->scenePos());
	if (items.contains(m_connector0) || items.contains(m_connector1)) {
		event->ignore();
		return;
	}

	// set selectable flag temporarily here so that dragging out a bendpoint is enabled
	setFlag(QGraphicsItem::ItemIsSelectable, true);
	ClipableWire::mousePressEvent(event);
	setFlag(QGraphicsItem::ItemIsSelectable, false);
}

void VirtualWire::setColorWasNamed(bool colorWasNamed) {
	m_colorWasNamed = colorWasNamed;
}

bool VirtualWire::colorWasNamed() {
	return m_colorWasNamed;
}

QPainterPath VirtualWire::shape() const
{
	return shapeAux(m_hoverStrokeWidth);
}
