Files
qad/qad_blockview/blockbusitem.cpp

639 lines
17 KiB
C++

#include "blockbusitem.h"
BlockBusItem::BlockBusItem(bool temp): QGraphicsObject(), PropertyStorage() {
temp_ = temp;
_init();
if (!temp) setData(1005, "connection");
else hide();
}
BlockBusItem::BlockBusItem(const BlockBusItem & other): QGraphicsObject(), PropertyStorage() {
temp_ = false;
_init();
setData(1005, "connection");
setPen(other.pen());
setBrush(other.brush());
setBusType(other.busType());
max_ep = other.max_ep;
pol = other.pol;
segments = other.segments;
updateGeometry();
}
void BlockBusItem::_init() {
setBusType(-1);
setAcceptHoverEvents(true);
ph.setColor(Qt::blue); ph.setJoinStyle(Qt::MiterJoin);
bh.setColor(Qt::blue); bh.setStyle(Qt::SolidPattern);
pu = pa = pr = ph; bu = ba = br = bh;
grid_step = 10.;
pu.setWidth(1);
pu.setColor(Qt::black); bu.setColor(Qt::black);
pa.setColor(Qt::darkGreen); ba.setColor(Qt::darkGreen);
pr.setColor(Qt::darkRed); br.setColor(Qt::darkRed);
pn.setColor(Qt::gray); pn.setStyle(Qt::DashLine);
if (temp_) {
pu.setStyle(Qt::DashLine);
pu.setColor(Qt::darkGray);
bu.setColor(Qt::darkGray);
}
setPen(pu); setBrush(bu);
max_ep = 0;
selPoint = selSegment = state_ = -1;
pen_width = 2.;
moved = deleted = mark_in = mark_out = new_segment = mm_cancel = lm_point = false;
}
void BlockBusItem::reconnect() {
if (temp_) return;
if (!scene()) return;
if (scene()->views().isEmpty()) return;
QMetaObject::invokeMethod(scene()->views().back(), "reconnectAll");
}
bool BlockBusItem::sceneEvent(QEvent * e) {
if (temp_) return QGraphicsObject::sceneEvent(e);
switch (e->type()) {
case QEvent::GraphicsSceneHoverEnter: hoverEnterEvent((QGraphicsSceneHoverEvent * )e); break;
case QEvent::GraphicsSceneHoverMove: hoverMoveEvent((QGraphicsSceneHoverEvent * )e); break;
case QEvent::GraphicsSceneHoverLeave: hoverLeaveEvent((QGraphicsSceneHoverEvent * )e); break;
case QEvent::GraphicsSceneMousePress: mousePressEvent((QGraphicsSceneMouseEvent * )e); break;
case QEvent::GraphicsSceneMouseMove: mouseMoveEvent((QGraphicsSceneMouseEvent * )e); break;
case QEvent::GraphicsSceneMouseRelease: mouseReleaseEvent((QGraphicsSceneMouseEvent * )e); break;
default: break;
}
return QGraphicsObject::sceneEvent(e);
}
int BlockBusItem::addPoint(const QPointF & point, bool update) {
int ei = pol.indexOf(point);
if (ei >= 0) return ei;
if (selSegment < 0 || selSegment >= pol.size() - 1) return -1;
pol << quantize(nearestPointOnLine(pol[segments[selSegment].first], pol[segments[selSegment].second], point), grid_step);
selPoint = pol.size() - 1;
segments << QPair<int, int>(selPoint, segments[selSegment].second);
segments[selSegment].second = selPoint;
selSegment = -1;
updateGeometry();
if (scene() != 0 && update) scene()->update();
return pol.size() - 1;
}
int BlockBusItem::segmentPointPair(int point) const {
for (int i = 0; i < segments.size(); ++i) {
if (segments[i].first == point) return segments[i].second;
if (segments[i].second == point) return segments[i].first;
}
return -1;
}
void BlockBusItem::removePoint(int index) {
if (index < 0 || index > pol.size() - 1) return;
int sc = 0, fs = -1, ss = -1;
for (int i = 0; i < segments.size(); ++i)
if (segments[i].first == index ||
segments[i].second == index) {
sc++;
if (fs < 0) fs = i;
else ss = i;
}
int ei(0);
switch (sc) {
case 1:
segments.removeAt(fs);
break;
case 2:
if (segments[ss].first == index) ei = segments[ss].second;
else ei = segments[ss].first;
if (segments[fs].first == index) segments[fs].first = ei;
else segments[fs].second = ei;
segments.removeAt(ss);
break;
default: return;
}
pol.remove(index);
for (int i = 0; i < segments.size(); ++i) {
if (segments[i].first >= index)
segments[i].first--;
if (segments[i].second >= index)
segments[i].second--;
}
selPoint = -1;
checkDelete();
updateGeometry();
if (scene() != 0) scene()->update();
}
void BlockBusItem::removeSegment(int index) {
if (index < 0 || index > segments.size() - 1) return;
int pif = segments[index].first, pis = segments[index].second;
if (pif > pis) qSwap<int>(pif, pis);
int scf = 0, scs = 0;
for (int i = 0; i < segments.size(); ++i) {
if (segments[i].first == pif ||
segments[i].second == pif)
scf++;
if (segments[i].first == pis ||
segments[i].second == pis)
scs++;
}
if (scs <= 2) removePoint(pis);
if (scf <= 2) removePoint(pif);
if (scs <= 2 || scf <= 2) selSegment = -1;
if (scene() != 0) scene()->update();
}
void BlockBusItem::appendPoint(const QPointF & p) {
pol << p;
if (pol.size() > 1)
segments << QPair<int, int>(pol.size() - 2, pol.size() - 1);
updateGeometry();
}
void BlockBusItem::clear() {
pol.clear();
segments.clear();
updateGeometry();
}
void BlockBusItem::markAsInput() {
mark_in = true;
mark_out = false;
}
void BlockBusItem::markAsOutput() {
mark_in = false;
mark_out = true;
}
void BlockBusItem::unmark() {
mark_in = mark_out = false;
}
void BlockBusItem::simplify() {
int pcnt = pol.size();
for (int i = 0; i < pol.size() - 1; ++i) {
if (pol[i] == pol[i + 1])
pol.remove(i--);
}
if (pol.size() < 3) return;
//PIMathVectorT2d cl, pl;
for (int i = 0; i < pol.size() - 2; ++i) {
//pl = Q2PIVector2(pol[i]) - Q2PIVector2(pol[i + 1]);
//cl = Q2PIVector2(pol[i + 1]) - Q2PIVector2(pol[i + 2]);
//if (pl.turnTo<3, double>() || cl.turnTo<3, double>())
// pol.remove(i-- + 1);
}
if (pcnt == pol.size()) return;
//GBFrom->emitAddToHistory(History::ConnectionSimplify, "");
updateGeometry();
if (scene() != 0) scene()->update();
}
void BlockBusItem::adjustLine() {
}
int BlockBusItem::endpointCount() const {
return endpoints().size();
}
QList<BlockItem * > BlockBusItem::connectedBlocks() const {
QList<BlockItemPin * > pins = connections_.values();
QSet<BlockItem * > ret;
foreach (BlockItemPin * p, pins)
ret << p->parent();
return ret.toList();
}
QList<BlockItemPin * > BlockBusItem::connectedPins() const {
return connections_.values();
}
void BlockBusItem::setBusState(bool state) {
int s = state ? 1 : 0;
if (state_ == s) return;
state_ = s;
update();
}
void BlockBusItem::clearBusState() {
if (state_ == -1) return;
state_ = -1;
update();
}
QByteArray BlockBusItem::save() const {
ChunkStream cs;
cs << cs.chunk(1, busType()) << cs.chunk(2, busName()) << cs.chunk(3, width()) << cs.chunk(4, pen())
<< cs.chunk(5, brush()) << cs.chunk(6, pol) << cs.chunk(7, segments) << cs.chunk(8, props);
return cs.data();
}
void BlockBusItem::load(const QByteArray & data) {
clear();
if (data.isEmpty()) return;
ChunkStream cs(data);
while (!cs.atEnd()) {
switch (cs.read()) {
case 1: setBusType(cs.getData<int>()); break;
case 2: setBusName(cs.getData<QString>()); break;
case 3: setWidth(cs.getData<double>()); break;
case 4: setPen(cs.getData<QPen>()); break;
case 5: setBrush(cs.getData<QBrush>()); break;
case 6: pol = cs.getData<QPolygonF>(); break;
case 7: segments = cs.getData<QList<QPair<int, int> > >(); break;
case 8: props = cs.getData<QList<BlockItem::Property> >(); break;
}
}
updateGeometry();
}
BlockBusItem * BlockBusItem::copy() const {
return new BlockBusItem(*this);
}
void BlockBusItem::updateGeometry() {
ends = endpoints();
ends_ind.clear();
for (int e = 0; e < ends.size(); ++e) {
int ce = ends[e];
for (int s = 0; s < segments.size(); ++s) {
if (segments[s].first == ce) {
ends_ind << QPair<int, int>(segments[s].first, segments[s].second);
break;
}
if (segments[s].second == ce) {
ends_ind << QPair<int, int>(segments[s].second, segments[s].first);
break;
}
}
}
reconnect();
prepareGeometryChange();
}
void BlockBusItem::checkDelete() {
if (pol.size() < 2 || segments.size() < 1) deleteLater();
}
void BlockBusItem::emitAction(BlockItemBase::Action a) {
QMetaObject::invokeMethod(scene()->views().back(), "actionEvent", Q_ARG(BlockItemBase::Action, a), Q_ARG(QList<QGraphicsItem*>, QList<QGraphicsItem*>() << this));
QMetaObject::invokeMethod(scene()->views().back(), "connectionsChanged");
}
QVector<int> BlockBusItem::endpoints() const {
QVector<int> counts(pol.size(), 0), ret;
for (int i = 0; i < segments.size(); ++i) {
counts[segments[i].first]++;
counts[segments[i].second]++;
}
for (int i = 0; i < counts.size(); ++i) {
if (counts[i] == 1)
ret << i;
}
return ret;
}
int BlockBusItem::pointSegments(int point) const {
int ret = 0;
for (int i = 0; i < segments.size(); ++i)
if (segments[i].first == point ||
segments[i].second == point)
ret++;
return ret;
}
void BlockBusItem::testPoint(QPointF pos, int * sel_point, int * sel_segment) {
for (int i = 0; i < pol.size(); ++i) {
if ((pol[i] - pos).manhattanLength() <= 10.) { // Point
*sel_point = i;
*sel_segment = -1;
return;
}
}
for (int i = 0; i < segments.size(); ++i) {
if (distPointToLine(pol[segments[i].first], pol[segments[i].second], pos) <= 7.) { // Segment
*sel_point = -1;
*sel_segment = i;
return;
}
}
*sel_point = -1;
*sel_segment = -1;
}
void BlockBusItem::hoverEnterEvent(QGraphicsSceneHoverEvent * e) {
tt = bus_name + (bus_name.isEmpty() ? "" : "\n\n") + tr("Add point: Ctrl + LeftClick\nRemove point\\segment: Ctrl + RightClick\nNew branch: Shift + LeftClick\nRemove connection: Shift + RightClick");
}
void BlockBusItem::hoverMoveEvent(QGraphicsSceneHoverEvent * e) {
if (temp_) return;
QPointF sp = e->scenePos();
testPoint(sp, &selPoint, &selSegment);
if (selPoint >= 0 || selSegment >= 0) {
setToolTip(tt);
update();
return;
}
setToolTip(QString());
QList<QGraphicsItem * > il = scene()->items(sp, Qt::ContainsItemBoundingRect, Qt::DescendingOrder), bil;
bil << this;
for (int i = 0; i < il.size(); ++i) {
QGraphicsItem * b = il[i];
if (b->data(1005) == "connection" && b != this) {
int tp = -1, ts = -1;
((BlockBusItem*)b)->testPoint(sp, &tp, &ts);
if (tp >= 0 || ts >= 0) {
foreach (QGraphicsItem * b2, bil)
b2->stackBefore(b);
break;
}
bil << b;
}
}
update();
}
void BlockBusItem::hoverLeaveEvent(QGraphicsSceneHoverEvent * e) {
if (temp_) return;
selPoint = selSegment = -1;
setPen(pu); setBrush(bu);
setToolTip(QString());
update();
QGraphicsObject::hoverLeaveEvent(e);
}
void BlockBusItem::mousePressEvent(QGraphicsSceneMouseEvent * e) {
if (temp_) return;
lp = quantize(e->scenePos(), grid_step);
if (new_segment) {
QMetaObject::invokeMethod(scene()->views().back(), "newBranchCancel");
}
new_segment = false;
if ((selPoint < 0 || selPoint > pol.size() - 1) && (selSegment < 0)) {
QGraphicsObject::mousePressEvent(e);
return;
}
int btncnt = 0;
if (e->buttons().testFlag(Qt::LeftButton)) btncnt++;
if (e->buttons().testFlag(Qt::RightButton)) btncnt++;
if (e->buttons().testFlag(Qt::MidButton)) btncnt++;
if (btncnt > 0) mm_mods = e->modifiers();
//qDebug() << "press" << e;
if (btncnt >= 2 && e->button() == Qt::RightButton) {
mm_cancel = true;
moved = false;
QPointF lp = qp - press_pos;
//qDebug() << lp;
if (selPoint >= 0 && selPoint <= pol.size() - 1)
pol[selPoint] += lp;
if (selSegment >= 0 && selSegment <= segments.size() - 1) {
pol[segments[selSegment].first] += lp;
pol[segments[selSegment].second] += lp;
}
moved = true;
prepareGeometryChange();
return;
}
if (e->modifiers().testFlag(Qt::ShiftModifier)) {
if (e->buttons().testFlag(Qt::LeftButton)) {
if (selSegment >= 0)
press_pos = quantize(nearestPointOnLine(pol[segments[selSegment].first], pol[segments[selSegment].second], e->scenePos()), grid_step);
else {
if (selPoint >= 0)
press_pos = pol[selPoint];
else
return;
}
if (max_ep >= 2) {
if (endpointCount() >= max_ep)
if (pointSegments(selPoint) >= 2 || selSegment >= 0)
return;
}
QMetaObject::invokeMethod(scene()->views().back(), "newBranch", Q_ARG(BlockBusItem * , this));
new_segment = true;
return;
}
if (e->buttons().testFlag(Qt::RightButton)) {
deleteLater();
}
}
if (e->modifiers().testFlag(Qt::ControlModifier)) {
if (e->buttons().testFlag(Qt::RightButton)) {
if (selPoint >= 0 && selPoint <= pol.size() - 1) {
removePoint(selPoint);
emitAction(BlockItemBase::BusPointRemove);
return;
}
if (selSegment >= 0 && selSegment <= segments.size() - 1) {
removeSegment(selSegment);
emitAction(BlockItemBase::BusSegmentRemove);
return;
}
}
if (e->buttons().testFlag(Qt::LeftButton) && selSegment >= 0) {
if (addPoint(e->scenePos()) >= 0)
emitAction(BlockItemBase::BusPointAdd);
return;
}
}
if (e->modifiers().testFlag(Qt::ShiftModifier)) {
if (e->buttons().testFlag(Qt::RightButton)) {
if (deleted) return;
deleted = true;
}
}
}
void BlockBusItem::mouseMoveEvent(QGraphicsSceneMouseEvent * e) {
if (temp_ || mm_cancel) return;
if (((selPoint < 0 || selPoint > pol.size() - 1) && (selSegment < 0)) && !new_segment) {
QGraphicsObject::mouseMoveEvent(e);
return;
}
qp = quantize(e->scenePos(), grid_step);
lp = qp - lp;
if (e->buttons().testFlag(Qt::LeftButton) && mm_mods.testFlag(Qt::ShiftModifier) && new_segment) {
QMetaObject::invokeMethod(scene()->views().back(), "newBranchTrace", Q_ARG(BlockBusItem * , this), Q_ARG(QPointF, e->scenePos()));
return;
}
if (new_segment) {
new_end = qp;
prepareGeometryChange();
} else {
if (e->buttons().testFlag(Qt::LeftButton)) {
lm_point = selPoint >= 0;
if (selPoint >= 0 && selPoint <= pol.size() - 1)
pol[selPoint] += lp;
if (selSegment >= 0 && selSegment <= segments.size() - 1) {
pol[segments[selSegment].first] += lp;
pol[segments[selSegment].second] += lp;
}
moved = true;
prepareGeometryChange();
}
}
lp = qp;
}
void BlockBusItem::mouseReleaseEvent(QGraphicsSceneMouseEvent * e) {
mm_mods = 0;
int btncnt = 0;
if (e->buttons().testFlag(Qt::LeftButton)) btncnt++;
if (e->buttons().testFlag(Qt::RightButton)) btncnt++;
if (e->buttons().testFlag(Qt::MidButton)) btncnt++;
if (btncnt == 0) mm_cancel = false;
if (new_segment) {
QMetaObject::invokeMethod(scene()->views().back(), "newBranchAccept", Q_ARG(BlockBusItem * , this));
updateGeometry();
selPoint = selSegment = -1;
}
if (moved) {
reconnect();
emitAction(lm_point ? BlockItemBase::BusPointMove : BlockItemBase::BusSegmentMove);
}
moved = new_segment = false;
QGraphicsObject::mouseReleaseEvent(e);
}
void BlockBusItem::paint(QPainter * p, const QStyleOptionGraphicsItem * o, QWidget * w) {
ph.setWidthF(pen_width + 1.);
pu.setWidthF(pen_width);
pa.setWidthF(pen_width);
pr.setWidthF(pen_width);
pn.setWidthF(pen_width);
if (pol.size() < 2) return;
if (selPoint >= 0 || selSegment >= 0) {
p->setPen(pa);
p->setBrush(ba);
} else {
p->setPen(pu);
p->setBrush(bu);
}
//if (mark_in) {p->setPen(pa); p->setBrush(ba);}
//if (mark_out) {p->setPen(pr); p->setBrush(br);}
if (im_bus.isNull()) {
for (int i = 0; i < segments.size(); ++i) {
p->drawLine(pol[segments[i].first], pol[segments[i].second]);
}
} else {
QBrush br;
br.setTextureImage(im_bus);
for (int i = 0; i < segments.size(); ++i) {
QPointF sp(pol[segments[i].first]), ep(pol[segments[i].second]);
QTransform tf;
tf.translate(sp.x(), sp.y());
tf.rotate(-QLineF(sp, ep).angle());
tf.translate(0., -im_bus.height() / 2.);
/*
br.setTransform(tf);
p->setPen(QPen(br, im_bus.height(), Qt::SolidLine, Qt::FlatCap, Qt::BevelJoin));
p->drawLine(sp, ep);
*/
p->save();
p->setTransform(tf, true);
p->setPen(Qt::NoPen);
p->setBrush(br);
//p->drawLine(QPointF(0., 0.), QPointF(QLineF(sp, ep).length(), 0.));
p->drawRect(QRectF(0., 0., QLineF(sp, ep).length(), im_bus.height()));
p->restore();
}
}
if (!im_end.isNull()) {
for (int i = 0; i < ends_ind.size(); ++i) {
QPointF sp = pol[ends_ind[i].first], ep = pol[ends_ind[i].second];
QTransform tf;
tf.translate(sp.x(), sp.y());
tf.rotate(-QLineF(sp, ep).angle());
tf.translate(-pen_width, -im_end.height() / 2.);
p->save();
p->setTransform(tf, true);
p->drawImage(0, 0, im_end);
p->restore();
}
}
if (state_ >= 0) {
if (state_ == 0) {
pr.setWidthF(pen_width + 1.);
p->setPen(pr);
} else if (state_ == 1) {
pa.setWidthF(pen_width + 1.);
p->setPen(pa);
}
p->setOpacity(0.5);
for (int i = 0; i < segments.size(); ++i) {
p->drawLine(pol[segments[i].first], pol[segments[i].second]);
}
p->setOpacity(1.);
}
if (!im_bus.isNull() && (selPoint >= 0 || selSegment >= 0)) {
p->setPen(pa);
p->setBrush(ba);
for (int i = 0; i < segments.size(); ++i) {
p->drawLine(pol[segments[i].first], pol[segments[i].second]);
}
}
//if (mark_in) {p->setPen(pa); p->setBrush(ba);}
//if (mark_out) {p->setPen(pr); p->setBrush(br);}
if (selPoint >= 0) {
p->save();
p->setPen(ph);
p->setBrush(bh);
p->translate(pol[selPoint]);
p->drawEllipse(QPointF(0, 0), 3, 3);
p->restore();
}
if (selSegment >= 0) {
p->save();
p->setPen(ph);
p->drawLine(pol[segments[selSegment].first], pol[segments[selSegment].second]);
p->restore();
}
}
QRectF BlockBusItem::boundingRect() const {
QPolygonF p(pol);
p << new_end;
return enlargedRect(p.boundingRect(), 0, 0, 10.f);
}