void MelodyNoteGlyphItem::setLedgerLinesItems(int count)
{
if (m_ledgerLines.count() == count)
return;
if (m_ledgerLines.count() < count) {
QPen linePen = ledgerLinePen();
while (m_ledgerLines.count() < count) {
QGraphicsLineItem *newLedgerLine = new QGraphicsLineItem(this);
newLedgerLine->setPen(linePen);
newLedgerLine->setVisible(false);
m_ledgerLines.append(newLedgerLine);
}
}
if (m_ledgerLines.count() > count) {
while (m_ledgerLines.count() > count) {
QGraphicsLineItem *ledgerLine = m_ledgerLines.takeLast();
if (ledgerLine != 0) {
ledgerLine->setParentItem(0);
delete ledgerLine;
}
}
}
}
void
ConfigurationSpaceScene::drawConfigurationPath(const rl::plan::VectorList& path)
{
this->resetPath();
rl::plan::VectorList::const_iterator i = path.begin();
rl::plan::VectorList::const_iterator j = ++path.begin();
while (i != path.end() && j != path.end())
{
QGraphicsLineItem* line = this->addLine(
(*i)(this->axis0),
-(*i)(this->axis1),
(*j)(this->axis0),
-(*j)(this->axis1),
QPen(QBrush(QColor(0, 255, 0)), 0)
);
line->setParentItem(this->scene);
line->setZValue(3);
this->path.push_back(line);
++i;
++j;
}
}
void
ConfigurationSpaceScene::drawConfigurationEdge(const rl::math::Vector& u, const rl::math::Vector& v, const bool& free)
{
QGraphicsLineItem* line = this->addLine(
u(this->axis0),
-u(this->axis1),
v(this->axis0),
-v(this->axis1),
free ? QPen(QBrush(QColor(0, 128, 0)), 0) : QPen(QBrush(QColor(128, 0, 0)), 0)
);
line->setParentItem(this->scene);
line->setZValue(2);
this->edges.push_back(line);
}
void TerrainProfileGraph::drawHoverCursor(const QPointF& position)
{
if (_hoverLine)
{
_scene->removeItem(_hoverLine);
delete _hoverLine;
_hoverLine = 0L;
}
if (_graphField.width() < 2 || _graphField.height() < 2)
return;
double xPos = position.x() < _graphField.x() ? _graphField.x() : (position.x() > _graphField.x() + _graphField.width() ? _graphField.x() + _graphField.width() : position.x());
QLineF vLine(xPos, _graphField.y(), xPos, _graphField.y() + _graphField.height());
QPointF* intersect = new QPointF;
bool foundIntersect = false;
for (int i=0; i < _graphLines.count(); i++)
{
if (vLine.intersect(_graphLines[i], intersect) == QLineF::BoundedIntersection)
{
foundIntersect = true;
break;
}
}
if (foundIntersect)
{
// Draw the upper line segment. Also serves as the parent item.
_hoverLine = new QGraphicsLineItem(xPos, _graphField.y(), xPos, intersect->y() - 3);
_hoverLine->setPen(_hoverPen);
_hoverLine->setZValue(OVERLAY_Z);
_scene->addItem(_hoverLine);
// Draw the box around the intersect point
QGraphicsRectItem* hoverBox = new QGraphicsRectItem(xPos - 3, intersect->y() - 3, 6, 6);
hoverBox->setPen(_hoverPen);
hoverBox->setBrush(Qt::NoBrush);
hoverBox->setZValue(OVERLAY_Z);
hoverBox->setParentItem(_hoverLine);
// Draw the lower line segment
QGraphicsLineItem* lowerLine = new QGraphicsLineItem(xPos, intersect->y() + 3, xPos, _graphField.y() + _graphField.height() + 5);
lowerLine->setPen(_hoverPen);
lowerLine->setZValue(OVERLAY_Z);
lowerLine->setParentItem(_hoverLine);
// Draw the text and background
double y = (1.0 - ((intersect->y() - _graphField.y()) / _graphField.height())) * (_graphMaxY - _graphMinY) + _graphMinY;
int textOffset = 10;
QGraphicsSimpleTextItem* hoverText = new QGraphicsSimpleTextItem(QString::number(y) + tr("m"));
hoverText->setBrush(QBrush(_axesColor));
hoverText->setFont(_graphFont);
hoverText->setZValue(OVERLAY_Z);
if (intersect->x() + textOffset + hoverText->boundingRect().width() < _graphField.x() + _graphField.width())
hoverText->setPos(intersect->x() + textOffset, intersect->y() - hoverText->boundingRect().height());
else
hoverText->setPos(intersect->x() - textOffset - hoverText->boundingRect().width(), intersect->y() - hoverText->boundingRect().height());
QGraphicsRectItem* hoverTextBackground = new QGraphicsRectItem(hoverText->x() - 3, hoverText->y() - 1,
hoverText->boundingRect().width() + 6,
hoverText->boundingRect().height() + 1);
hoverTextBackground->setPen(_axesPen);
hoverTextBackground->setBrush(QBrush(_graphColor));
hoverTextBackground->setZValue(OVERLAY_Z);
hoverTextBackground->setParentItem(_hoverLine);
hoverText->setParentItem(_hoverLine);
// Update callback
if (_positionCallback.valid())
{
double distanceFactor = ((xPos - _graphField.x()) / (double)_graphField.width());
osg::Vec3d worldStart, worldEnd;
_calculator->getStart(ALTMODE_ABSOLUTE).toWorld(worldStart);
_calculator->getEnd(ALTMODE_ABSOLUTE).toWorld(worldEnd);
double worldX = (worldEnd.x() - worldStart.x()) * distanceFactor + worldStart.x();
double worldY = (worldEnd.y() - worldStart.y()) * distanceFactor + worldStart.y();
double worldZ = (worldEnd.z() - worldStart.z()) * distanceFactor + worldStart.z();
GeoPoint mapPos;
mapPos.fromWorld(_calculator->getStart().getSRS(), osg::Vec3d(worldX, worldY, worldZ));
_positionCallback->updatePosition(mapPos.y(), mapPos.x(), hoverText->text().toStdString());
}
}
else
{
// No intersect found so just draw the full line at xPos
_hoverLine = new QGraphicsLineItem(xPos, _graphField.y(), xPos, _graphField.y() + _graphField.height() + 5);
_hoverLine->setPen(_hoverPen);
_hoverLine->setZValue(OVERLAY_Z);
_scene->addItem(_hoverLine);
}
// Draw distance text
double x = ((xPos - _graphField.x()) / _graphField.width()) * _totalDistance;
BoxedSimpleTextItem* distanceText = new BoxedSimpleTextItem(QString::number(x / 1000.0, 'f', 2) + tr("km"), _backgroundColor);
distanceText->setBrush(QBrush(_axesColor));
distanceText->setFont(_graphFont);
distanceText->setZValue(OVERLAY_Z);
if(xPos - 2 - distanceText->boundingRect().width() > _graphField.x())
{
distanceText->setPos(xPos - 2 - distanceText->boundingRect().width(), _graphField.y() + _graphField.height() + 2);
}
else
{
distanceText->setPos(xPos + 2, _graphField.y() + _graphField.height() + 2);
}
distanceText->setParentItem(_hoverLine);
// Draw selection box
drawSelectionBox(xPos);
delete intersect;
}
