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git-svn-id: svn://db.shs.com.ru/libs@1 a8b55f48-bf90-11e4-a774-851b48703e85

qad_blockview/blockitem.cpp

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+#include "blockitem.h"
+
+
+
+BlockItemPin::BlockItemPin(Qt::Alignment a, int bus_type_, const QString & text_, QGraphicsItem * _parent): QGraphicsItem(_parent), ell_item(this), text_item(this) {
+	parent_ = 0;
+	setData(1004, "pin");
+	setAcceptHoverEvents(true);
+	text_item.setData(1002, true);
+	ell_item.setData(1003, true);
+	br[Disconnected] = QBrush(Qt::lightGray);
+	br[Connected] = QBrush(Qt::darkGreen);
+	br[Hover] = QBrush(Qt::blue);
+	br[Drop] = QBrush(Qt::green);
+	br[Accept] = QBrush(Qt::green);
+	br[Reject] = QBrush(Qt::red);
+	setState(Disconnected);
+	setAlignment(a);
+	setBusType(bus_type_);
+	setText(text_);
+	setZValue(2.);
+	setDirection(BlockItemPin::InputOutput);
+	_reparent();
+}
+
+
+void BlockItemPin::_init(bool affect_parent) {
+	QRectF tbr = text_item.boundingRect();
+	const double r = 7.;
+	ell_item.setRect(-r, -r, r+r, r+r);
+	ell_item.setSpanAngle(16*180);
+	text_item.resetTransform();
+	text_item.setPos(0, -tbr.height() / 2.);
+	text_item.setTransformOriginPoint(0, tbr.height() / 2.);
+	switch (align) {
+	case Qt::AlignBottom: ell_item.setStartAngle(16*0); text_item.setRotation(-90.); text_item.moveBy(0, -r * 1.5); break;
+	case Qt::AlignRight: ell_item.setStartAngle(16*90); text_item.setRotation(0.);   text_item.moveBy(-tbr.width() - r * 1.5, 0); break;
+	case Qt::AlignTop:  ell_item.setStartAngle(16*180); text_item.setRotation(-90.); text_item.moveBy(0, tbr.width() + r * 1.5); break;
+	case Qt::AlignLeft: ell_item.setStartAngle(16*270); text_item.setRotation(0.);   text_item.moveBy(r * 1.5, 0); break;
+	default: break;
+	}
+	if (affect_parent && parent_)
+		parent_->arrangePins();
+}
+
+
+void BlockItemPin::_reparent() {
+	if (parentItem() == 0) return;
+	if (qgraphicsitem_cast<BlockItem*>(parentItem()) == 0) return;
+	QPen p = qgraphicsitem_cast<BlockItem*>(parentItem())->g_main.pen();
+	ell_item.setPen(p);
+}
+
+
+QVariant BlockItemPin::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant & value) {
+	if (change == QGraphicsItem::ItemParentChange)
+		_reparent();
+	return QGraphicsItem::itemChange(change, value);
+}
+
+
+void BlockItemPin::hoverEnterEvent(QGraphicsSceneHoverEvent * e) {
+	bool m_pin_mc(false);
+	if (scene()) if (!scene()->views().isEmpty())
+			QMetaObject::invokeMethod(scene()->views()[0], "getPinMC", Q_ARG(bool*, &m_pin_mc));
+	if ((state() != Disconnected) && !m_pin_mc) return;
+	saveState();
+	setState(BlockItemPin::Hover);
+}
+
+
+void BlockItemPin::hoverLeaveEvent(QGraphicsSceneHoverEvent * e) {
+	//if (state() == Hover)
+	restoreState();
+}
+
+
+
+
+BlockItem::BlockItem(QGraphicsItem * parent): QGraphicsObject(parent), PropertyStorage(),
+g_main(this), g_selection(this) {
+	setData(1006, "item");
+	setZValue(1.);
+	setAcceptHoverEvents(true);
+	setFlags(QGraphicsItem::ItemIsSelectable | QGraphicsItem::ItemIsMovable);
+	g_main.setData(1002, true);
+	g_selection.setData(1007, "item_selection");
+	g_selection.setAcceptedMouseButtons(0);
+	g_selection.setZValue(10.);
+	g_selection.hide();
+	g_selection.setData(1003, true);
+	col = Qt::lightGray;
+	_resize(QSizeF(100., 60.));
+	QPen p(QColor(128, 128, 255), 1., Qt::DotLine);
+	p.setCosmetic(true);
+	g_selection.setPen(p);
+	g_selection.setBrush(QColor(128, 128, 255, 32));
+	//g_main.setBrush(QColor(128, 128, 128, 64));
+	/*
+	BlockItemPin * pin = new BlockItemPin(Qt::AlignRight, 0, this);
+	pin->setText("text");
+	pin->setBusType(0);
+	addPin(pin);
+	pin = new BlockItemPin(Qt::AlignTop, this);
+	pin->setBusType(0); addPin(pin);
+	pin = new BlockItemPin(Qt::AlignLeft, this);
+	pin->setBusType(1); addPin(pin);
+	pin = new BlockItemPin(Qt::AlignRight, this);
+	pin->setBusType(1); addPin(pin);*/
+}
+
+
+BlockItem::~BlockItem() {
+	clearDecors();
+}
+
+
+void BlockItem::_resize(QSizeF s) {
+	g_main.setRect(QRectF(QPointF(), s));
+	g_main.setPos(-g_main.rect().center());
+	g_selection.setRect(enlargedRect(g_main.rect(), 0, 0, 8));
+	g_selection.setPos(g_main.pos());
+	QRadialGradient g(g_main.rect().width() / 2., 0, qMax<qreal>(g_main.rect().width() / 2., g_main.rect().height()));
+	g.setSpread(QGradient::PadSpread);
+	g.setCoordinateMode(QGradient::LogicalMode);
+	g.setColorAt(0., col.darker(120.));
+	g.setColorAt(1., col.lighter(120.));
+	g_main.setBrush(QBrush(g));
+	prepareGeometryChange();
+	arrangePins();
+}
+
+
+BlockItemPin * BlockItem::addPin(BlockItemPin * pin, bool update_) {
+	pin->setParentItem(this);
+	pins_[pin->alignment()] << pin;
+	pin->parent_ = this;
+	if (update_)
+		arrangePins();
+	return pin;
+}
+
+
+BlockItemPin * BlockItem::addPin(Qt::Alignment align, int bus_type, const QString & text, bool update_) {
+	BlockItemPin * pin = new BlockItemPin(align, bus_type, text, this);
+	pin->parent_ = this;
+	pins_[pin->alignment()] << pin;
+	if (update_)
+		arrangePins();
+	return pin;
+}
+
+
+void BlockItem::removePin(BlockItemPin * pin) {
+	if (!pin) return;
+	QMutableMapIterator<Qt::Alignment, QList<BlockItemPin * > > it(pins_);
+	while (it.hasNext()) {
+		it.next();
+		it.value().removeAll(pin);
+	}
+	delete pin;
+	arrangePins();
+}
+
+
+void BlockItem::addDecor(QGraphicsItem * item) {
+	if (decors_.contains(item)) return;
+	if (qgraphicsitem_cast<QGraphicsPixmapItem*>(item))
+		qgraphicsitem_cast<QGraphicsPixmapItem*>(item)->setTransformationMode(Qt::SmoothTransformation);
+	if (qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item))
+		qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item)->setData(1010, qgraphicsitem_cast<QGraphicsSimpleTextItem*>(item)->text());
+	if (qgraphicsitem_cast<AlignedTextItem*>(item))
+		qgraphicsitem_cast<AlignedTextItem*>(item)->setData(1010, qgraphicsitem_cast<AlignedTextItem*>(item)->text());
+	item->setData(1002, true);
+	item->setData(1011, "decor");
+	decors_ << item;
+	item->setParentItem(this);
+}
+
+
+void BlockItem::removeDecor(QGraphicsItem * item) {
+	if (scene() && item)
+		scene()->sendEvent(item, new QGraphicsSceneEvent(QEvent::Close));
+	decors_.removeAll(item);
+	delete item;
+}
+
+
+QVector<BlockItemPin * > BlockItem::takePins() {
+	QVector<BlockItemPin * > ret = pins();
+	pins_.clear();
+	return ret;
+}
+
+
+void BlockItem::clearPins() {
+	QList<QList<BlockItemPin * > > mp = pins_.values();
+	for (int i = 0; i < mp.size(); ++i)
+		qDeleteAll(mp[i]);
+	pins_.clear();
+}
+
+
+void BlockItem::clearDecors() {
+	bool pbs = false;
+	if (scene()) pbs = scene()->blockSignals(true);
+	if (scene())
+		foreach (QGraphicsItem * i, decors_)
+			scene()->sendEvent(i, new QGraphicsSceneEvent(QEvent::Close));
+	qDeleteAll(decors_);
+	decors_.clear();
+	if (scene()) {
+		scene()->blockSignals(pbs);
+		QMetaObject::invokeMethod(scene(), "selectionChanged");
+	}
+}
+
+
+QVector<BlockItemPin * > BlockItem::pins() const {
+	QList<QList<BlockItemPin * > > mp = pins_.values();
+	QVector<BlockItemPin * > ret;
+	for (int i = 0; i < mp.size(); ++i)
+		ret << mp[i].toVector();
+	return ret;
+}
+
+
+QByteArray BlockItem::saveModel() {
+	/*QDataStream s(&ret, QIODevice::ReadWrite);
+	QVector<BlockItemPin * > ps = pins();
+	s << pos() << rotation() << size() << color() << ps.size();
+	foreach (BlockItemPin * p, ps)
+		s << int(p->alignment()) << p->busType() << p->text() << p->devices();
+	s << decors_.size();
+	foreach (QGraphicsItem * i, decors_)
+		s << i;*/
+	ChunkStream cs;
+	cs << cs.chunk(1, pos()) << cs.chunk(2, rotation()) << cs.chunk(3, size()) << cs.chunk(4, color()) << cs.chunk(5, pins()) << cs.chunk(6, decors_);
+	return cs.data();
+}
+
+
+void BlockItem::loadModel(const QByteArray & data) {
+	//qDebug() << "load from" << data.size() << "bytes";
+	clearPins();
+	clearDecors();
+	if (data.isEmpty()) return;
+	/*QDataStream s(data);
+	{QPointF _v; s >> _v;}
+	{qreal _v; s >> _v;}
+	{QSizeF _v; s >> _v; setSize(_v);}
+	{QColor _v; s >> _v; setColor(_v);}
+	int _s; s >> _s;
+	for (int i = 0; i < _s; ++i) {
+		BlockItemPin * pin = new BlockItemPin();
+		{int _v; s >> _v; pin->setAlignment((Qt::Alignment)_v);}
+		{int _v; s >> _v; pin->setBusType(_v);}
+		{QString _v; s >> _v; pin->setText(_v);}
+		{QMap<QString, BlockItemPin::Device> _v; s >> _v; pin->setDevices(_v);}
+		addPin(pin);
+	}
+	s >> _s;
+	for (int i = 0; i < _s; ++i) {
+		if (s.atEnd()) break;
+		QGraphicsItem * ni = 0;
+		s >> ni;
+		if (ni) {
+			addDecor(ni);
+		}
+	}*/
+	ChunkStream cs(data);
+	QVector<BlockItemPin * > tp;
+	QList<QGraphicsItem * > dl;
+	while (!cs.atEnd()) {
+		switch (cs.read()) {
+			case 1: /*setPos(cs.getData<QPointF>());*/ break;
+			case 2: /*setRotation(cs.getData<qreal>());*/ break;
+			case 3: setSize(cs.getData<QSizeF>()); break;
+			case 4: setColor(cs.getData<QColor>()); break;
+			case 5:
+				tp = cs.getData<QVector<BlockItemPin * > >();
+				foreach (BlockItemPin * p, tp) addPin(p);
+				break;
+			case 6:
+				dl = cs.getData<QList<QGraphicsItem * > >();
+				foreach (QGraphicsItem * d, dl) addDecor(d);
+				break;
+		}
+	}
+}
+
+
+QByteArray BlockItem::save() {
+	ChunkStream cs;
+	QMap<QString, QList<BlockItem::Property> > pp;
+	foreach (BlockItemPin * p, pins()) {
+		pp[p->text()] = p->properties();
+	}
+	cs << cs.chunk(1, pos()) << cs.chunk(2, rotation()) << cs.chunk(3, props) << cs.chunk(5, pp);
+	return cs.data();
+}
+
+
+void BlockItem::load(const QByteArray & data) {
+	if (data.isEmpty()) return;
+	ChunkStream cs(data);
+	QMap<QString, QMap<QString, QString> > _v;
+	QMap<QString, QList<BlockItem::Property> > _p;
+	while (!cs.atEnd()) {
+		switch (cs.read()) {
+			case 1: setPos(cs.getData<QPointF>()); break;
+			case 2: setRotation(cs.getData<qreal>()); break;
+			case 3: props = cs.getData<QList<BlockItem::Property> >(); break;
+			case 5:
+				_p = cs.getData<QMap<QString, QList<BlockItem::Property> > >();
+				foreach (BlockItemPin * p, pins())
+					if (_p.contains(p->text()))
+						p->properties() = _p[p->text()];
+				break;
+		}
+	}
+}
+
+
+BlockItem * BlockItem::copy() const {
+	BlockItem * ret = new BlockItem();
+	ret->setPos(pos());
+	ret->setSize(size());
+	ret->setColor(color());
+	ret->setSelected(false);
+	ret->props = props;
+	QVector<BlockItemPin * > mp = pins();
+	foreach (BlockItemPin * p, mp) {
+		BlockItemPin * np = new BlockItemPin();
+		np->setBusType(p->busType());
+		np->setAlignment(p->alignment());
+		np->setText(p->text());
+		np->properties() = p->properties();
+		ret->addPin(np);
+	}
+	QByteArray ba;
+	foreach (QGraphicsItem * i, decors_) {
+		ba.clear();
+		QGraphicsItem * ni = 0;
+		QDataStream s(&ba, QIODevice::ReadWrite); s << i;
+		QDataStream s2(ba); s2 >> ni;
+		if (ni)
+			ret->addDecor(ni);
+	}
+	return ret;
+}
+
+
+QList<BlockBusItem * > BlockItem::connectedBuses() const {
+	QList<BlockBusItem * > ret;
+	foreach (BlockItemPin * p, pins())
+		ret << p->connectedBuses();
+	return ret;
+}
+
+
+BlockItemPin * BlockItem::pinByText(const QString & t) const {
+	foreach (BlockItemPin * p, pins())
+		if (p->text() == t)
+			return p;
+	return 0;
+}
+
+
+BlockItemPin * BlockItem::pinAtBus(BlockBusItem * bus) const {
+	if (bus == 0) return 0;
+	foreach (BlockItemPin * p, pins())
+		if (p->connectedBuses().contains(bus))
+			return p;
+	return 0;
+}
+
+
+QRectF BlockItem::boundingRect() const {
+	return g_main.mapRectToParent(g_main.boundingRect());
+}
+
+
+void BlockItem::mouseMoveEvent(QGraphicsSceneMouseEvent * event) {
+	//QGraphicsItem::mouseMoveEvent(event);
+}
+
+
+#define _POS (i - ((cp.size() - 1) / 2)) * 20
+
+void BlockItem::arrangePins() {
+	//double w = g_main.rect().width(), h = g_main.rect().height();
+	QVector<BlockItemPin * > pl = pins();
+	pins_.clear();
+	foreach (BlockItemPin * p, pl)
+		pins_[p->alignment()] << p;
+	QList<BlockItemPin * > cp = pins_.value(Qt::AlignBottom);
+	for (int i = 0; i < cp.size(); ++i) cp[i]->setPos(_POS, bottom());
+	cp = pins_.value(Qt::AlignTop);
+	for (int i = 0; i < cp.size(); ++i) cp[i]->setPos(_POS, top());
+	cp = pins_.value(Qt::AlignLeft);
+	for (int i = 0; i < cp.size(); ++i) cp[i]->setPos(left(), _POS);
+	cp = pins_.value(Qt::AlignRight);
+	for (int i = 0; i < cp.size(); ++i) cp[i]->setPos(right(), _POS);
+}
+
+#undef _POS
+
+
+void BlockItem::paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget) {
+	//if ()
+}
+
+
+QVariant BlockItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant & value) {
+	if (change == QGraphicsItem::ItemSelectedChange)
+		g_selection.setVisible(value.toBool());
+	return QGraphicsItem::itemChange(change, value);
+}