void LineItem::creationPolygonChanged(View::CreationEvent event) {
if (event == View::MousePress) {
const QPolygonF poly = mapFromScene(parentView()->creationPolygon(View::MousePress));
setPos(poly.first().x(), poly.first().y());
setViewRect(QRectF(0.0, 0.0, 0.0, sizeOfGrip().height()));
parentView()->scene()->addItem(this);
//setZValue(1);
return;
}
if (event == View::MouseMove) {
const QPolygonF poly = mapFromScene(parentView()->creationPolygon(View::MouseMove));
if (!rect().isEmpty()) {
rotateTowards(line().p2(), poly.last());
}
QRectF r = rect();
r.setSize(QSizeF(QLineF(line().p1(), poly.last()).length(), r.height()));
setViewRect(r);
return;
}
if (event == View::MouseRelease) {
const QPolygonF poly = mapFromScene(parentView()->creationPolygon(View::MouseRelease));
parentView()->disconnect(this, SLOT(deleteLater())); //Don't delete ourself
parentView()->disconnect(this, SLOT(creationPolygonChanged(View::CreationEvent)));
parentView()->setMouseMode(View::Default);
maybeReparent();
emit creationComplete();
return;
}
}
void LineHandler::adjust()
{
QPolygonF line = mEdge->line();
NodeElement *src = mEdge->src();
NodeElement *dst = mEdge->dst();
if (src && src->isSelected() && dst && dst->isSelected() && !mEdge->isLoop()) {
QPointF offset = mEdge->mapFromItem(src, src->portPos(mEdge->fromPort())) - line.first();
mEdge->setPos(mEdge->pos() + offset);
return;
}
if (src) {
line.first() = mEdge->mapFromItem(src, src->portPos(mEdge->fromPort()));
}
if (dst) {
line.last() = mEdge->mapFromItem(dst, dst->portPos(mEdge->toPort()));
}
mEdge->setLine(line);
if (mEdge->isLoop()) {
mEdge->createLoopEdge();
}
}
void ClipPainterPrivate::labelPosition(const QPolygonF &polygon, QVector<QPointF> &labelNodes,
LabelPositionFlags labelPositionFlags) const
{
if ( labelPositionFlags.testFlag( LineCenter ) ) {
// The Label at the center of the polyline:
if ( polygon.size() > 0 ) {
const int labelPosition = polygon.size() / 2; // implied: 0 <= labelPosition < polygon.size()
labelNodes << polygon.at( labelPosition );
}
}
if ( polygon.size() > 0 && labelPositionFlags.testFlag( LineStart ) ) {
if ( pointAllowsLabel( polygon.first() ) ) {
labelNodes << polygon.first();
}
// The Label at the start of the polyline:
for ( int it = 1; it < polygon.size(); ++it ) {
const bool currentAllowsLabel = pointAllowsLabel(polygon.at(it));
if ( currentAllowsLabel ) {
// As polygon.size() > 0 it's ensured that it-1 exists.
QPointF node = interpolateLabelPoint( polygon.at( it -1 ), polygon.at( it ),
labelPositionFlags );
if ( node != QPointF( -1.0, -1.0 ) ) {
labelNodes << node;
}
break;
}
}
}
if ( polygon.size() > 1 && labelPositionFlags.testFlag( LineEnd ) ) {
if ( pointAllowsLabel( polygon.at( polygon.size() - 1 ) ) ) {
labelNodes << polygon.at( polygon.size() - 1 );
}
// The Label at the end of the polyline:
for ( int it = polygon.size() - 2; it > 0; --it ) {
const bool currentAllowsLabel = pointAllowsLabel(polygon.at(it));
if ( currentAllowsLabel ) {
QPointF node = interpolateLabelPoint( polygon.at( it + 1 ), polygon.at( it ),
labelPositionFlags );
if ( node != QPointF( -1.0, -1.0 ) ) {
labelNodes << node;
}
break;
}
}
}
}
void SMDItem::createItem(QGraphicsItemGroup* inOutItem, bool inIsMainNotGround)
{
auto main = new QGraphicsPolygonItem;
QPolygonF poly;
for (auto point : mComponent->rect().points)
{
poly << QPointF(point.x, - point.y);
}
poly << poly.first();
main->setPolygon(poly);
QColor color = inIsMainNotGround ?
gSettings().layerColor(mComponent->layer())
: gSettings().backgroundColor();
QBrush br(color);
main->setBrush(br);
QPen p(color);
if (!inIsMainNotGround)
{
p.setColor(color);
p.setWidthF(mComponent->groundPlaneDistance() * 2);
p.setJoinStyle(Qt::MiterJoin);
}
main->setPen(p);
inOutItem->addToGroup(main);
}
void DiveCalculatedCeiling::modelDataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight)
{
// We don't have enougth data to calculate things, quit.
if (!shouldCalculateStuff(topLeft, bottomRight))
return;
AbstractProfilePolygonItem::modelDataChanged(topLeft, bottomRight);
// Add 2 points to close the polygon.
QPolygonF poly = polygon();
if (poly.isEmpty())
return;
QPointF p1 = poly.first();
QPointF p2 = poly.last();
poly.prepend(QPointF(p1.x(), vAxis->posAtValue(0)));
poly.append(QPointF(p2.x(), vAxis->posAtValue(0)));
setPolygon(poly);
QLinearGradient pat(0, polygon().boundingRect().top(), 0, polygon().boundingRect().bottom());
pat.setColorAt(0, getColor(CALC_CEILING_SHALLOW));
pat.setColorAt(1, getColor(CALC_CEILING_DEEP));
setPen(QPen(QBrush(Qt::NoBrush), 0));
setBrush(pat);
gradientFactor->setX(poly.boundingRect().width() / 2 + poly.boundingRect().x());
DivePlannerPointsModel *plannerModel = DivePlannerPointsModel::instance();
if (plannerModel->isPlanner()) {
struct diveplan &diveplan = plannerModel->getDiveplan();
gradientFactor->setText(QString("GF %1/%2").arg(diveplan.gflow).arg(diveplan.gfhigh));
} else {
gradientFactor->setText(QString("GF %1/%2").arg(prefs.gflow).arg(prefs.gfhigh));
}
}
void QgsMarkerLineSymbolLayerV2::renderOffsetVertexAlongLine( const QPolygonF &points, int vertex, double distance, QgsSymbolV2RenderContext& context )
{
if ( points.isEmpty() )
return;
QgsRenderContext& rc = context.renderContext();
double origAngle = mMarker->angle();
if ( distance == 0 )
{
// rotate marker (if desired)
if ( mRotateMarker )
{
bool isRing = false;
if ( points.first() == points.last() )
isRing = true;
double angle = markerAngle( points, isRing, vertex );
mMarker->setAngle( origAngle + angle * 180 / M_PI );
}
mMarker->renderPoint( points[vertex], context.feature(), rc, -1, context.selected() );
return;
}
int pointIncrement = distance > 0 ? 1 : -1;
QPointF previousPoint = points[vertex];
int startPoint = distance > 0 ? qMin( vertex + 1, points.count() - 1 ) : qMax( vertex - 1, 0 );
int endPoint = distance > 0 ? points.count() - 1 : 0;
double distanceLeft = qAbs( distance );
for ( int i = startPoint; pointIncrement > 0 ? i <= endPoint : i >= endPoint; i += pointIncrement )
{
const QPointF& pt = points[i];
if ( previousPoint == pt ) // must not be equal!
continue;
// create line segment
MyLine l( previousPoint, pt );
if ( distanceLeft < l.length() )
{
//destination point is in current segment
QPointF markerPoint = previousPoint + l.diffForInterval( distanceLeft );
// rotate marker (if desired)
if ( mRotateMarker )
{
mMarker->setAngle( origAngle + ( l.angle() * 180 / M_PI ) );
}
mMarker->renderPoint( markerPoint, context.feature(), rc, -1, context.selected() );
return;
}
distanceLeft -= l.length();
previousPoint = pt;
}
//didn't find point
return;
}
//! [4]
void Arrow::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
QWidget *)
{
if (myStartItem->collidesWithItem(myEndItem))
return;
QPen myPen = pen();
myPen.setColor(myColor);
qreal arrowSize = 20;
painter->setPen(myPen);
painter->setBrush(myColor);
//! [4] //! [5]
QLineF centerLine(myStartItem->pos(), myEndItem->pos());
QPolygonF endPolygon = myEndItem->polygon();
QPointF p1 = endPolygon.first() + myEndItem->pos();
QPointF p2;
QPointF intersectPoint;
QLineF polyLine;
for (int i = 1; i < endPolygon.count(); ++i) {
p2 = endPolygon.at(i) + myEndItem->pos();
polyLine = QLineF(p1, p2);
QLineF::IntersectType intersectType =
polyLine.intersect(centerLine, &intersectPoint);
if (intersectType == QLineF::BoundedIntersection)
break;
p1 = p2;
}
setLine(QLineF(intersectPoint, myStartItem->pos()));
//! [5] //! [6]
double angle = ::acos(line().dx() / line().length());
if (line().dy() >= 0)
angle = (Pi * 2) - angle;
QPointF arrowP1 = line().p1() + QPointF(sin(angle + Pi / 3) * arrowSize,
cos(angle + Pi / 3) * arrowSize);
QPointF arrowP2 = line().p1() + QPointF(sin(angle + Pi - Pi / 3) * arrowSize,
cos(angle + Pi - Pi / 3) * arrowSize);
arrowHead.clear();
arrowHead << line().p1() << arrowP1 << arrowP2;
//! [6] //! [7]
painter->drawLine(line());
painter->drawPolygon(arrowHead);
if (isSelected()) {
painter->setPen(QPen(myColor, 1, Qt::DashLine));
QLineF myLine = line();
myLine.translate(0, 4.0);
painter->drawLine(myLine);
myLine.translate(0,-8.0);
painter->drawLine(myLine);
}
}
/*!
\brief Complete a polygon to be a closed polygon including the
area between the original polygon and the baseline.
\param painter Painter
\param xMap X map
\param yMap Y map
\param polygon Polygon to be completed
*/
void QwtPlotCurve::closePolyline( QPainter *painter,
const QwtScaleMap &xMap, const QwtScaleMap &yMap,
QPolygonF &polygon ) const
{
if ( polygon.size() < 2 )
return;
const bool doAlign = QwtPainter::roundingAlignment( painter );
double baseline = d_data->baseline;
if ( orientation() == Qt::Vertical )
{
if ( yMap.transformation()->type() == QwtScaleTransformation::Log10 )
{
if ( baseline < QwtScaleMap::LogMin )
baseline = QwtScaleMap::LogMin;
}
double refY = yMap.transform( baseline );
if ( doAlign )
refY = qRound( refY );
polygon += QPointF( polygon.last().x(), refY );
polygon += QPointF( polygon.first().x(), refY );
}
else
{
if ( xMap.transformation()->type() == QwtScaleTransformation::Log10 )
{
if ( baseline < QwtScaleMap::LogMin )
baseline = QwtScaleMap::LogMin;
}
double refX = xMap.transform( baseline );
if ( doAlign )
refX = qRound( refX );
polygon += QPointF( refX, polygon.last().y() );
polygon += QPointF( refX, polygon.first().y() );
}
}
//! Internal, used by the Outline style.
void QwtPlotHistogram::flushPolygon( QPainter *painter,
double baseLine, QPolygonF &polygon ) const
{
if ( polygon.size() == 0 )
return;
if ( orientation() == Qt::Horizontal )
polygon += QPointF( baseLine, polygon.last().y() );
else
polygon += QPointF( polygon.last().x(), baseLine );
if ( d_data->brush.style() != Qt::NoBrush )
{
painter->setPen( Qt::NoPen );
painter->setBrush( d_data->brush );
if ( orientation() == Qt::Horizontal )
{
polygon += QPointF( polygon.last().x(), baseLine );
polygon += QPointF( polygon.first().x(), baseLine );
}
else
{
polygon += QPointF( baseLine, polygon.last().y() );
polygon += QPointF( baseLine, polygon.first().y() );
}
QwtPainter::drawPolygon( painter, polygon );
int resize = polygon.size();
if ( resize > 1 )
resize -= 2;
polygon.resize( resize );
}
if ( d_data->pen.style() != Qt::NoPen )
{
painter->setBrush( Qt::NoBrush );
painter->setPen( d_data->pen );
QwtPainter::drawPolyline( painter, polygon );
}
polygon.clear();
}
void CircleItem::creationPolygonChanged(View::CreationEvent event) {
if (event == View::EscapeEvent) {
ViewItem::creationPolygonChanged(event);
return;
}
if (event == View::MousePress) {
const QPolygonF poly = mapFromScene(view()->creationPolygon(View::MousePress));
setPos(poly.first().x(), poly.first().y());
setViewRect(QRectF(0.0, 0.0, 0.0, sizeOfGrip().height()));
setRect(-2,-2,4,4);
view()->scene()->addItem(this);
return;
}
if (event == View::MouseMove) {
const QPolygonF poly = mapFromScene(view()->creationPolygon(View::MouseMove));
qreal dx = poly.last().x();
qreal dy = poly.last().y();
qreal r = qMax(qreal(2.0),sqrt(dx*dx + dy*dy));
QRectF newRect(-r, -r, 2.0*r, 2.0*r);
setViewRect(newRect);
return;
}
if (event == View::MouseRelease) {
const QPolygonF poly = mapFromScene(view()->creationPolygon(View::MouseRelease));
view()->disconnect(this, SLOT(deleteLater())); //Don't delete ourself
view()->disconnect(this, SLOT(creationPolygonChanged(View::CreationEvent)));
view()->setMouseMode(View::Default);
updateViewItemParent();
emit creationComplete();
return;
}
}
void Arrow::paint(QPainter *painter, const QStyleOptionGraphicsItem *,
QWidget *)
{
if(!myStartItem || !myEndItem) {
return;
}
if(myEndItem->sceneBoundingRect().contains(p1())) {
return;
}
QPen myPen = pen();
myPen.setColor(myColor);
qreal arrowSize = 5;
painter->setPen(myPen);
painter->setBrush(myColor);
QLineF centerLine(p1(), p2());
QPolygonF endPolygon = myEndItem->mapToScene(myEndItem->shape()).toFillPolygon();
QPointF p1 = endPolygon.first();
QPointF p2;
QPointF intersectPoint;
QLineF polyLine;
for (int i = 1; i < endPolygon.count(); ++i) {
p2 = endPolygon.at(i);
polyLine = QLineF(p1, p2);
QLineF::IntersectType intersectType =
polyLine.intersect(centerLine, &intersectPoint);
if (intersectType == QLineF::BoundedIntersection)
break;
p1 = p2;
}
setLine(QLineF(intersectPoint, this->p1()));
double angle = ::acos(line().dx() / line().length());
if (line().dy() >= 0)
angle = (Pi * 2) - angle;
QPointF arrowP1 = line().p1() + QPointF(sin(angle + Pi / 3) * arrowSize,
cos(angle + Pi / 3) * arrowSize);
QPointF arrowP2 = line().p1() + QPointF(sin(angle + Pi - Pi / 3) * arrowSize,
cos(angle + Pi - Pi / 3) * arrowSize);
arrowHead.clear();
arrowHead << line().p1() << arrowP1 << arrowP2;
painter->drawLine(line());
painter->drawPolygon(arrowHead);
}
void QgsMarkerLineSymbolLayerV2::renderPolylineVertex( const QPolygonF& points, QgsSymbolV2RenderContext& context, Placement placement )
{
if ( points.isEmpty() )
return;
QgsRenderContext& rc = context.renderContext();
double origAngle = mMarker->angle();
int i, maxCount;
bool isRing = false;
if ( placement == FirstVertex )
{
i = 0;
maxCount = 1;
}
else if ( placement == LastVertex )
{
i = points.count() - 1;
maxCount = points.count();
}
else
{
i = 0;
maxCount = points.count();
if ( points.first() == points.last() )
isRing = true;
}
for ( ; i < maxCount; ++i )
{
if ( isRing && placement == Vertex && i == points.count() - 1 )
{
continue; // don't draw the last marker - it has been drawn already
}
// rotate marker (if desired)
if ( mRotateMarker )
{
double angle = markerAngle( points, isRing, i );
mMarker->setAngle( origAngle + angle * 180 / M_PI );
}
mMarker->renderPoint( points.at( i ), context.feature(), rc, -1, context.selected() );
}
// restore original rotation
mMarker->setAngle( origAngle );
}
qreal PathSorter::getDistance(const QPolygonF &p1, const QPolygonF &p2)
{
qreal testx1 = p1.last().x();
qreal testy1 = p1.last().y();
qreal testx2 = p2.first().x();
qreal testy2 = p2.first().y();
qreal a = 0.0;
qreal b = 0.0;
double c = 0.0;
if(testx1 >= testx2) a = testx1 - testx2;
else a = testx2 - testx1;
if(testy1 >= testy2) b = testy1 - testy2;
else b = testy2 - testy1;
c = sqrt((double)(a*a+b*b));
return (qreal) c;
}
QPolygonF QwtSplineC1::polygonX( int numPoints, const QPolygonF &points ) const
{
if ( points.size() <= 2 )
return points;
QPolygonF fittedPoints;
const QVector<double> m = slopesX( points );
if ( m.size() != points.size() )
return fittedPoints;
const QPointF *p = points.constData();
const double *s = m.constData();
const double x1 = points.first().x();
const double x2 = points.last().x();
const double delta = ( x2 - x1 ) / ( numPoints - 1 );
double x0, y0;
QwtSplinePolynom polynom;
for ( int i = 0, j = 0; i < numPoints; i++ )
{
double x = x1 + i * delta;
if ( x > x2 )
x = x2;
if ( i == 0 || x > p[j + 1].x() )
{
while ( x > p[j + 1].x() )
j++;
polynom = QwtSplinePolynom::fromSlopes( p[j], s[j], p[j + 1], s[j + 1] );
x0 = p[j].x();
y0 = p[j].y();
}
const double y = y0 + polynom.value( x - x0 );
fittedPoints += QPointF( x, y );
}
return fittedPoints;
}
QLineF::IntersectType getIntersection (const QLineF& l, const QPolygonF& p, QPointF* intersectPoint)
{
QPointF p1 = p.first();
QPointF p2;
QLineF polyLine;
for ( int i = 1; i < p.count(); ++i)
{
p2 = p.at(i);
polyLine = QLineF( p1, p2);
QLineF::IntersectType intersectType = polyLine.intersect( l, intersectPoint);
if ( intersectType == QLineF::BoundedIntersection)
{
return QLineF::BoundedIntersection;
}
p1 = p2;
}
return QLineF::NoIntersection;
}
void QgsNodeEditor::zoomToNode( int idx )
{
double x = mSelectedFeature->vertexMap().at( idx )->point().x();
double y = mSelectedFeature->vertexMap().at( idx )->point().y();
QgsPoint newCenter( x, y );
QgsCoordinateTransform t( mLayer->crs(), mCanvas->mapSettings().destinationCrs() );
QgsPoint tCenter = t.transform( newCenter );
QPolygonF ext = mCanvas->mapSettings().visiblePolygon();
//close polygon
ext.append( ext.first() );
QgsGeometry extGeom( QgsGeometry::fromQPolygonF( ext ) );
QgsGeometry nodeGeom( QgsGeometry::fromPoint( tCenter ) );
if ( !nodeGeom.within( extGeom ) )
{
mCanvas->setCenter( tCenter );
mCanvas->refresh();
}
}
QPolygonF polygonFromPath(potrace_path_t *path,
int bezierPrecision)
{
QPolygonF poly;
if(!path) return poly;
int n = path->curve.n;
int *tag = path->curve.tag;
potrace_dpoint_t (*c)[3] = path->curve.c;
for(int i = 0; i < n; ++i)
{
switch (tag[i])
{
case POTRACE_CORNER:
poly << QPointF(c[i][1].x, c[i][1].y)
<< QPointF(c[i][2].x, c[i][2].y);
break;
case POTRACE_CURVETO:
{
QPointF pa, pb, pc, pd;
pa = poly.isEmpty()? QPointF(c[n-1][2].x, c[n-1][2].y) :
poly.last();
pb = QPointF(c[i][0].x, c[i][0].y);
pc = QPointF(c[i][1].x, c[i][1].y);
pd = QPointF(c[i][2].x, c[i][2].y);
for(int i = 1; i <= bezierPrecision; ++i)
{
poly << bezier(pa, pb, pc, pd, static_cast<qreal>(i)/bezierPrecision);
}
}
break;
}
}
if(!poly.isEmpty() && poly.first() == poly.last())
{
poly.remove(poly.size()-1);
}
return poly;
}
QPolygonF Shape::polygon() const
{
QPolygonF result = vertices_;
switch (type_) {
case SEGMENT:
case POLYLINE:
break;
case CLOSED_POLYLINE:
case POLYGON:
result.append(result.first());
break;
case RECTANGLE:
if (result.size() == 2)
result = QPolygonF(QRectF(result[0], result[1]));
break;
}
return result;
}
static PyObject *meth_QPolygonF_first(PyObject *sipSelf, PyObject *sipArgs)
{
PyObject *sipParseErr = NULL;
{
QPolygonF *sipCpp;
if (sipParseArgs(&sipParseErr, sipArgs, "B", &sipSelf, sipType_QPolygonF, &sipCpp))
{
QPointF*sipRes;
sipRes = &sipCpp->first();
return sipConvertFromType(sipRes,sipType_QPointF,NULL);
}
}
/* Raise an exception if the arguments couldn't be parsed. */
sipNoMethod(sipParseErr, sipName_QPolygonF, sipName_first, doc_QPolygonF_first);
return NULL;
}
void testDuplicates()
{
QwtSplineLocal spline( QwtSplineLocal::Cardinal );
spline.setParametrization( QwtSplineParametrization::ParameterChordal );
QPolygonF points;
points += QPointF( 1, 6 );
points += QPointF( 2, 7 );
points += QPointF( 3, 5);
points += QPointF( 2, 4 );
points += QPointF( 0, 3 );
// inserting duplicates
QPolygonF points1;
for ( int i = 0; i < points.size(); i++ )
{
points1 += points[i];
points1 += points[i];
}
testPaths( "Duplicates", spline, points, points1 );
spline.setBoundaryType( QwtSpline::ClosedPolygon );
testPaths( "Duplicates", spline, points, points1 );
QPolygonF points2 = points;
points2.append( points[0] );
testPaths( "First point also at End", spline, points, points2 );
QPolygonF points3 = points;
points3.prepend( points.first() );
testPaths( "First point twice", spline, points, points3 );
QPolygonF points4 = points;
points4.append( points.last() );
testPaths( "Last point twice", spline, points, points4 );
}
/**
* Splits the selected segments by inserting new nodes in the middle. The
* selected segments are defined by each pair of consecutive \a indexRanges.
*
* This method can deal with both polygons as well as polylines. For polygons,
* pass <code>true</code> for \a closed.
*/
static QPolygonF splitPolygonSegments(const QPolygonF &polygon,
const RangeSet<int> &indexRanges,
bool closed)
{
if (indexRanges.isEmpty())
return polygon;
const int n = polygon.size();
QPolygonF result = polygon;
RangeSet<int>::Range firstRange = indexRanges.begin();
RangeSet<int>::Range it = indexRanges.end();
// assert: firstRange != it
if (closed) {
RangeSet<int>::Range lastRange = it;
--lastRange; // We know there is at least one range
// Handle the case where the first and last nodes are selected
if (firstRange.first() == 0 && lastRange.last() == n - 1) {
const QPointF splitPoint = (result.first() + result.last()) / 2;
result.append(splitPoint);
}
}
do {
--it;
for (int i = it.last(); i > it.first(); --i) {
const QPointF splitPoint = (result.at(i) + result.at(i - 1)) / 2;
result.insert(i, splitPoint);
}
} while (it != firstRange);
return result;
}
void LineHandler::deleteLoop(QPolygonF &line, int startPos)
{
for (int i = startPos; i < line.size() - 3; ++i) {
bool isCut = false;
for (int j = i + 2; j < line.size() - 1; ++j) {
QPointF cut;
if (QLineF(line[i], line[i + 1]).intersect(QLineF(line[j], line[j + 1]), &cut)
== QLineF::BoundedIntersection)
{
if ((i != 0) || !((j == line.size() - 2)
&& (QLineF(line.first(), line.last()).length() < (kvadratik * 2))))
{
QPainterPath path;
QPainterPathStroker ps;
ps.setWidth(kvadratik);
for (int k = 0; k < line.size() - 1; ++k) {
path.moveTo(line[k]);
path.lineTo(line[k + 1]);
if (ps.createStroke(path).contains(cut)) {
line.insert(k + 1, cut);
break;
}
}
line.remove(i + 2, j - i);
deleteLoop(line, i);
isCut = true;
break;
}
}
}
if (isCut) {
break;
}
}
}
void IsometricRenderer::drawMapObject(QPainter *painter,
const MapObject *object,
const QColor &color) const
{
painter->save();
QPen pen(Qt::black);
pen.setCosmetic(true);
const Cell &cell = object->cell();
if (!cell.isEmpty()) {
const Tile *tile = cell.tile;
const QSize imgSize = tile->size();
const QPointF pos = pixelToScreenCoords(object->position());
const QPointF tileOffset = tile->offset();
CellRenderer(painter).render(cell, pos, object->size(),
CellRenderer::BottomCenter);
if (testFlag(ShowTileObjectOutlines)) {
QRectF rect(QPointF(pos.x() - imgSize.width() / 2 + tileOffset.x(),
pos.y() - imgSize.height() + tileOffset.y()),
imgSize);
pen.setStyle(Qt::SolidLine);
painter->setPen(pen);
painter->drawRect(rect);
pen.setStyle(Qt::DotLine);
pen.setColor(color);
painter->setPen(pen);
painter->drawRect(rect);
}
} else {
const qreal lineWidth = objectLineWidth();
const qreal scale = painterScale();
const qreal shadowOffset = (lineWidth == 0 ? 1 : lineWidth) / scale;
QColor brushColor = color;
brushColor.setAlpha(50);
QBrush brush(brushColor);
pen.setJoinStyle(Qt::RoundJoin);
pen.setCapStyle(Qt::RoundCap);
pen.setWidth(lineWidth);
QPen colorPen(pen);
colorPen.setColor(color);
painter->setPen(pen);
painter->setRenderHint(QPainter::Antialiasing);
// TODO: Do something sensible to make null-sized objects usable
switch (object->shape()) {
case MapObject::Ellipse: {
QPolygonF polygon = pixelRectToScreenPolygon(object->bounds());
float tw = map()->tileWidth();
float th = map()->tileHeight();
QPointF transformScale(1, 1);
if (tw > th)
transformScale = QPointF(1, th/tw);
else
transformScale = QPointF(tw/th, 1);
QPointF l1 = polygon.at(1) - polygon.at(0);
QPointF l2 = polygon.at(3) - polygon.at(0);
QTransform trans;
trans.scale(transformScale.x(), transformScale.y());
trans.rotate(45);
QTransform iTrans = trans.inverted();
QPointF l1x = iTrans.map(l1);
QPointF l2x = iTrans.map(l2);
QSizeF ellipseSize(l1x.manhattanLength(), l2x.manhattanLength());
if (ellipseSize.width() > 0 && ellipseSize.height() > 0) {
painter->save();
painter->setPen(pen);
painter->translate(polygon.at(0));
painter->scale(transformScale.x(), transformScale.y());
painter->rotate(45);
painter->drawEllipse(QRectF(QPointF(0, 0), ellipseSize));
painter->restore();
}
painter->setBrush(Qt::NoBrush);
painter->drawPolygon(polygon);
painter->setPen(colorPen);
painter->setBrush(Qt::NoBrush);
painter->translate(QPointF(0, -shadowOffset));
painter->drawPolygon(polygon);
painter->setBrush(brush);
if (ellipseSize.width() > 0 && ellipseSize.height() > 0) {
painter->save();
painter->translate(polygon.at(0));
painter->scale(transformScale.x(), transformScale.y());
painter->rotate(45);
painter->drawEllipse(QRectF(QPointF(0, 0), ellipseSize));
painter->restore();
}
break;
}
case MapObject::Rectangle: {
QPolygonF polygon = pixelRectToScreenPolygon(object->bounds());
painter->drawPolygon(polygon);
painter->setPen(colorPen);
painter->setBrush(brush);
polygon.translate(0, -shadowOffset);
painter->drawPolygon(polygon);
break;
}
case MapObject::Polygon: {
const QPointF &pos = object->position();
const QPolygonF polygon = object->polygon().translated(pos);
QPolygonF screenPolygon = pixelToScreenCoords(polygon);
QPen thickPen(pen);
QPen thickColorPen(colorPen);
thickPen.setWidthF(thickPen.widthF() * 4);
thickColorPen.setWidthF(thickColorPen.widthF() * 4);
painter->drawPolygon(screenPolygon);
painter->setPen(thickPen);
painter->drawPoint(screenPolygon.first());
painter->setPen(colorPen);
painter->setBrush(brush);
screenPolygon.translate(0, -shadowOffset);
painter->drawPolygon(screenPolygon);
painter->setPen(thickColorPen);
painter->drawPoint(screenPolygon.first());
break;
}
case MapObject::Polyline: {
const QPointF &pos = object->position();
const QPolygonF polygon = object->polygon().translated(pos);
QPolygonF screenPolygon = pixelToScreenCoords(polygon);
QPen thickPen(pen);
QPen thickColorPen(colorPen);
thickPen.setWidthF(thickPen.widthF() * 4);
thickColorPen.setWidthF(thickColorPen.widthF() * 4);
painter->drawPolyline(screenPolygon);
painter->setPen(thickPen);
painter->drawPoint(screenPolygon.first());
pen.setColor(color);
painter->setPen(pen);
screenPolygon.translate(0, -shadowOffset);
painter->drawPolyline(screenPolygon);
painter->setPen(thickColorPen);
painter->drawPoint(screenPolygon.first());
break;
}
}
}
painter->restore();
}
void QgsMarkerLineSymbolLayerV2::renderPolylineVertex( const QPolygonF& points, QgsSymbolV2RenderContext& context, Placement placement )
{
if ( points.isEmpty() )
return;
QgsRenderContext& rc = context.renderContext();
double origAngle = mMarker->angle();
int i, maxCount;
bool isRing = false;
double offsetAlongLine = mOffsetAlongLine;
QgsExpression* offsetAlongLineExpression = expression( "offset_along_line" );
if ( offsetAlongLineExpression )
{
offsetAlongLine = offsetAlongLineExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble();
}
if ( offsetAlongLine != 0 )
{
//scale offset along line
offsetAlongLine *= QgsSymbolLayerV2Utils::lineWidthScaleFactor( rc, mOffsetAlongLineUnit, mOffsetAlongLineMapUnitScale );
}
if ( placement == FirstVertex )
{
i = 0;
maxCount = 1;
}
else if ( placement == LastVertex )
{
i = points.count() - 1;
maxCount = points.count();
}
else
{
i = 0;
maxCount = points.count();
if ( points.first() == points.last() )
isRing = true;
}
if ( offsetAlongLine > 0 && ( placement == FirstVertex || placement == LastVertex ) )
{
double distance;
distance = placement == FirstVertex ? offsetAlongLine : -offsetAlongLine;
renderOffsetVertexAlongLine( points, i, distance, context );
// restore original rotation
mMarker->setAngle( origAngle );
return;
}
for ( ; i < maxCount; ++i )
{
if ( isRing && placement == Vertex && i == points.count() - 1 )
{
continue; // don't draw the last marker - it has been drawn already
}
// rotate marker (if desired)
if ( mRotateMarker )
{
double angle = markerAngle( points, isRing, i );
mMarker->setAngle( origAngle + angle * 180 / M_PI );
}
mMarker->renderPoint( points.at( i ), context.feature(), rc, -1, context.selected() );
}
// restore original rotation
mMarker->setAngle( origAngle );
}
void QgsMarkerLineSymbolLayerV2::renderPolylineVertex( const QPolygonF& points, QgsSymbolV2RenderContext& context, Placement placement )
{
if ( points.isEmpty() )
return;
QgsRenderContext& rc = context.renderContext();
double origAngle = mMarker->angle();
double angle;
int i, maxCount;
bool isRing = false;
if ( placement == FirstVertex )
{
i = 0;
maxCount = 1;
}
else if ( placement == LastVertex )
{
i = points.count() - 1;
maxCount = points.count();
}
else
{
i = 0;
maxCount = points.count();
if ( points.first() == points.last() )
isRing = true;
}
for ( ; i < maxCount; ++i )
{
const QPointF& pt = points[i];
// rotate marker (if desired)
if ( mRotateMarker )
{
if ( i == 0 )
{
if ( !isRing )
{
// use first segment's angle
const QPointF& nextPt = points[i+1];
if ( pt == nextPt )
continue;
angle = MyLine( pt, nextPt ).angle();
}
else
{
// closed ring: use average angle between first and last segment
const QPointF& prevPt = points[points.count() - 2];
const QPointF& nextPt = points[1];
if ( prevPt == pt || nextPt == pt )
continue;
angle = _averageAngle( prevPt, pt, nextPt );
}
}
else if ( i == points.count() - 1 )
{
if ( !isRing )
{
// use last segment's angle
const QPointF& prevPt = points[i-1];
if ( pt == prevPt )
continue;
angle = MyLine( prevPt, pt ).angle();
}
else
{
// don't draw the last marker - it has been drawn already
continue;
}
}
else
{
// use average angle
const QPointF& prevPt = points[i-1];
const QPointF& nextPt = points[i+1];
if ( prevPt == pt || nextPt == pt )
continue;
angle = _averageAngle( prevPt, pt, nextPt );
}
mMarker->setAngle( origAngle + angle * 180 / M_PI );
}
mMarker->renderPoint( points.at( i ), context.feature(), rc, -1, context.selected() );
}
// restore original rotation
mMarker->setAngle( origAngle );
}
QPolygonF straightArrow( QPointF po, QPointF pd, qreal startWidth, qreal width, qreal headSize, QgsArrowSymbolLayer::HeadType headType, qreal offset )
{
QPolygonF polygon; // implicitly shared
// vector length
qreal length = euclidian_distance( po, pd );
// shift points if there is not enough room for the head(s)
if (( headType == QgsArrowSymbolLayer::HeadSingle ) && ( length < headSize ) )
{
po = pd - ( pd - po ) / length * headSize;
length = headSize;
}
else if (( headType == QgsArrowSymbolLayer::HeadReversed ) && ( length < headSize ) )
{
pd = po + ( pd - po ) / length * headSize;
length = headSize;
}
else if (( headType == QgsArrowSymbolLayer::HeadDouble ) && ( length < 2 * headSize ) )
{
QPointF v = ( pd - po ) / length * headSize;
QPointF npo = ( po + pd ) / 2.0 - v;
QPointF npd = ( po + pd ) / 2.0 + v;
po = npo;
pd = npd;
length = 2 * headSize;
}
qreal bodyLength = length - headSize;
// unit vector
QPointF unitVec = ( pd - po ) / length;
// perpendicular vector
QPointF perpVec( -unitVec.y(), unitVec.x() );
// set offset
po += perpVec * offset;
pd += perpVec * offset;
if ( headType == QgsArrowSymbolLayer::HeadDouble )
{
// first head
polygon << po;
polygon << po + unitVec * headSize + perpVec * headSize;
polygon << po + unitVec * headSize + perpVec * ( width * 0.5 );
polygon << po + unitVec * bodyLength + perpVec * ( width * 0.5 );
// second head
polygon << po + unitVec * bodyLength + perpVec * headSize;
polygon << pd;
polygon << po + unitVec * bodyLength - perpVec * headSize;
polygon << po + unitVec * bodyLength - perpVec * ( width * 0.5 );
// end of the first head
polygon << po + unitVec * headSize - perpVec * ( width * 0.5 );
polygon << po + unitVec * headSize - perpVec * headSize;
}
else if ( headType == QgsArrowSymbolLayer::HeadSingle )
{
polygon << po - perpVec * ( startWidth * 0.5 );
polygon << po + perpVec * ( startWidth * 0.5 );
polygon << po + unitVec * bodyLength + perpVec * ( width * 0.5 );
polygon << po + unitVec * bodyLength + perpVec * headSize;
polygon << pd;
polygon << po + unitVec * bodyLength - perpVec * headSize;
polygon << po + unitVec * bodyLength - perpVec * ( width * 0.5 );
}
else if ( headType == QgsArrowSymbolLayer::HeadReversed )
{
// first head
polygon << po;
polygon << po + unitVec * headSize + perpVec * headSize;
polygon << po + unitVec * headSize + perpVec * ( width * 0.5 );
polygon << pd + perpVec * ( startWidth * 0.5 );
polygon << pd - perpVec * ( startWidth * 0.5 );
polygon << po + unitVec * headSize - perpVec * ( width * 0.5 );
polygon << po + unitVec * headSize - perpVec * headSize;
}
// close the polygon
polygon << polygon.first();
return polygon;
}
QPolygonF QwtSpline::polygonP( const QPolygonF &points,
double delta, bool withNodes ) const
{
if ( delta <= 0.0 )
return QPolygonF();
const int n = points.size();
if ( n <= 1 )
return points;
if ( n == 2 )
{
// TODO
return points;
}
QPolygonF path;
const QVector<QLineF> controlPoints = bezierControlPointsP( points );
if ( controlPoints.size() < n - 1 )
return path;
path += points.first();
double t = delta;
for ( int i = 0; i < n - 1; i++ )
{
#if 1
const double l = d_parameter->value( points[i], points[i+1] );
#endif
while ( t < l )
{
path += qwtBezierPoint( points[i], controlPoints[i].p1(),
controlPoints[i].p2(), points[i+1], t / l );
t += delta;
}
if ( withNodes )
{
if ( qFuzzyCompare( path.last().x(), points[i+1].x() ) )
path.last() = points[i+1];
else
path += points[i+1];
t = delta;
}
else
{
t -= l;
}
}
if ( controlPoints.size() >= n )
{
const double l = d_parameter->value( points[n-1], points[0] );
while ( t < l )
{
path += qwtBezierPoint( points[n-1], controlPoints[n-1].p1(),
controlPoints[n-1].p2(), points[0], t / l );
t += delta;
}
if ( qFuzzyCompare( path.last().x(), points[0].x() ) )
path.last() = points[0];
else
path += points[0];
}
return path;
}
void QgsMarkerLineSymbolLayerV2::renderPolylineVertex( const QPolygonF& points, QgsSymbolV2RenderContext& context, Placement placement )
{
if ( points.isEmpty() )
return;
QgsRenderContext& rc = context.renderContext();
double origAngle = mMarker->angle();
int i, maxCount;
bool isRing = false;
double offsetAlongLine = mOffsetAlongLine;
if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_OFFSET_ALONG_LINE ) )
{
context.setOriginalValueVariable( mOffsetAlongLine );
offsetAlongLine = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_OFFSET_ALONG_LINE, context, mOffsetAlongLine ).toDouble();
}
if ( offsetAlongLine != 0 )
{
//scale offset along line
offsetAlongLine = QgsSymbolLayerV2Utils::convertToPainterUnits( rc, offsetAlongLine, mOffsetAlongLineUnit, mOffsetAlongLineMapUnitScale );
}
if ( offsetAlongLine == 0 && context.renderContext().geometry()
&& context.renderContext().geometry()->hasCurvedSegments() && ( placement == Vertex || placement == CurvePoint ) )
{
const QgsCoordinateTransform* ct = context.renderContext().coordinateTransform();
const QgsMapToPixel& mtp = context.renderContext().mapToPixel();
QgsVertexId vId;
QgsPointV2 vPoint;
double x, y, z;
QPointF mapPoint;
while ( context.renderContext().geometry()->nextVertex( vId, vPoint ) )
{
if (( placement == Vertex && vId.type == QgsVertexId::SegmentVertex )
|| ( placement == CurvePoint && vId.type == QgsVertexId::CurveVertex ) )
{
//transform
x = vPoint.x(), y = vPoint.y(); z = vPoint.z();
if ( ct )
{
ct->transformInPlace( x, y, z );
}
mapPoint.setX( x ); mapPoint.setY( y );
mtp.transformInPlace( mapPoint.rx(), mapPoint.ry() );
if ( mRotateMarker )
{
double angle = context.renderContext().geometry()->vertexAngle( vId );
mMarker->setAngle( angle * 180 / M_PI );
}
mMarker->renderPoint( mapPoint, context.feature(), rc, -1, context.selected() );
}
}
return;
}
if ( placement == FirstVertex )
{
i = 0;
maxCount = 1;
}
else if ( placement == LastVertex )
{
i = points.count() - 1;
maxCount = points.count();
}
else if ( placement == Vertex )
{
i = 0;
maxCount = points.count();
if ( points.first() == points.last() )
isRing = true;
}
else
{
return;
}
if ( offsetAlongLine > 0 && ( placement == FirstVertex || placement == LastVertex ) )
{
double distance;
distance = placement == FirstVertex ? offsetAlongLine : -offsetAlongLine;
renderOffsetVertexAlongLine( points, i, distance, context );
// restore original rotation
mMarker->setAngle( origAngle );
return;
}
for ( ; i < maxCount; ++i )
{
if ( isRing && placement == Vertex && i == points.count() - 1 )
{
continue; // don't draw the last marker - it has been drawn already
}
// rotate marker (if desired)
if ( mRotateMarker )
{
double angle = markerAngle( points, isRing, i );
mMarker->setAngle( origAngle + angle * 180 / M_PI );
}
mMarker->renderPoint( points.at( i ), context.feature(), rc, -1, context.selected() );
}
// restore original rotation
mMarker->setAngle( origAngle );
}
void GraphicsTransition::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget){
//If the collide no need to draw an arrow
if (mCurrentState->collidesWithItem(mNextState))
return;
QPen myPen = pen();
myPen.setColor(Qt::white);
qreal arrowSize = 20;
painter->setPen(myPen);
painter->setBrush(Qt::white);
QLineF centerLine(mCurrentState->getCenterPoint(), mNextState->getCenterPoint());
QPolygonF endPolygon = mNextState->boundingRect();
QPointF p1 = endPolygon.first() + mNextState->pos();
QPointF p2;
QPointF intersectPoint;
QLineF polyLine;
for (int i = 1; i < endPolygon.count(); ++i) {
p2 = endPolygon.at(i) + mNextState->pos();
polyLine = QLineF(p1, p2);
QLineF::IntersectType intersectType = polyLine.intersect(centerLine, &intersectPoint);
if (intersectType == QLineF::BoundedIntersection)
break;
p1 = p2;
}
setLine(QLineF(intersectPoint, mCurrentState->getCenterPoint()));
double angle = ::acos(line().dx() / line().length());
if (line().dy() >= 0)
angle = (PI * 2) - angle;
QPointF arrowP1 = line().p1() + QPointF(sin(angle + PI / 3) * arrowSize,
cos(angle + PI / 3) * arrowSize);
QPointF arrowP2 = line().p1() + QPointF(sin(angle + PI - PI / 3) * arrowSize,
cos(angle + PI - PI / 3) * arrowSize);
mArrowHead.clear();
mArrowHead << line().p1() << arrowP1 << arrowP2;
painter->drawLine(line());
painter->drawPolygon(mArrowHead);
//painter->drawEllipse(line().p1(), 10,10);
//Selection square
if (isSelected()) {
painter->setPen(QPen(Qt::yellow, 3, Qt::DashLine));
QLineF myLine = line();
myLine.translate(0, 4.0);
painter->drawLine(myLine);
myLine.translate(0,-8.0);
painter->drawLine(myLine);
}
}
//----------------------------------------------------------------------------------------------
void GraphEdgeView::paint(QPainter *p_painter, const QStyleOptionGraphicsItem *p_option, QWidget *p_widget)
{
if (m_startNode->collidesWithItem(m_endNode))
return;
QPen myPen = pen();
myPen.setColor(isSelected() ? m_selectedColor : m_color);
qreal arrowSize = m_arrowSize;
p_painter->setPen(myPen);
p_painter->setBrush(isSelected() ? m_selectedColor : m_color);
QLineF centerLine(m_startNode->mapToScene(m_startNode->rect().center()), m_endNode->mapToScene(m_endNode->rect().center()));
QPolygonF endPolygon;
QPointF p1;
QPointF p2;
QPointF intersectPoint1;
QPointF intersectPoint2;
QLineF polyLine;
endPolygon = QPolygonF(m_endNode->rect());
p1 = endPolygon.first() + m_endNode->pos();
for (int i = 1; i < endPolygon.count(); ++i)
{
p2 = endPolygon.at(i) + m_endNode->pos();
polyLine = QLineF(p1, p2);
QLineF::IntersectType intersectType =
polyLine.intersect(centerLine, &intersectPoint1);
if (intersectType == QLineF::BoundedIntersection)
break;
p1 = p2;
}
endPolygon = QPolygonF(m_startNode->rect());
p1 = endPolygon.first() + m_startNode->pos();
for (int i = 1; i < endPolygon.count(); ++i)
{
p2 = endPolygon.at(i) + m_startNode->pos();
polyLine = QLineF(p1, p2);
QLineF::IntersectType intersectType =
polyLine.intersect(centerLine, &intersectPoint2);
if (intersectType == QLineF::BoundedIntersection)
break;
p1 = p2;
}
setLine(QLineF(intersectPoint1, intersectPoint2));
double angle = ::acos(this->line().dx() / this->line().length());
if (this->line().dy() >= 0)
angle = (Pi * 2) - angle;
QPointF arrowP1 = this->line().p1() + QPointF(sin(angle + Pi / 3) * arrowSize,
cos(angle + Pi / 3) * arrowSize);
QPointF arrowP2 = this->line().p1() + QPointF(sin(angle + Pi - Pi / 3) * arrowSize,
cos(angle + Pi - Pi / 3) * arrowSize);
m_arrowHead.clear();
m_arrowHead << this->line().p1() << arrowP1 << arrowP2;
p_painter->drawLine(this->line());
p_painter->drawPolygon(m_arrowHead);
//if (isSelected())
//{
// p_painter->setPen(QPen(m_selectedColor, 2, Qt::DotLine));
// QLineF normal = this->line().unitVector().normalVector();
// qreal dx = normal.dx();
// qreal dy = normal.dy();
// QLineF myLine;
//
// myLine = this->line();
// myLine.translate(dx * 4, dy * 4);
// p_painter->drawLine(myLine);
// myLine = this->line();
// myLine.translate(-dx * 4,-dy * 4);
// p_painter->drawLine(myLine);
//}
}
