void ConnectionTool::repaintDecorations()
{
const qreal radius = handleRadius();
QRectF repaintRect;
if (m_currentShape) {
repaintRect = m_currentShape->boundingRect();
canvas()->updateCanvas(repaintRect.adjusted(-radius, -radius, radius, radius));
KoConnectionShape * connectionShape = dynamic_cast<KoConnectionShape*>(m_currentShape);
if (!m_resetPaint && m_currentShape->isVisible(true) && !connectionShape) {
// only paint connection points of textShapes not inside a tos container and other shapes
if ( !(m_currentShape->shapeId() == TextShape_SHAPEID &&
dynamic_cast<KoTosContainer*>(m_currentShape->parent())) ) {
KoConnectionPoints connectionPoints = m_currentShape->connectionPoints();
KoConnectionPoints::const_iterator cp = connectionPoints.constBegin();
KoConnectionPoints::const_iterator lastCp = connectionPoints.constEnd();
for(; cp != lastCp; ++cp) {
repaintRect = handleGrabRect(m_currentShape->shapeToDocument(cp.value().position));
canvas()->updateCanvas(repaintRect.adjusted(-radius, -radius, radius, radius));
}
}
}
if (m_editMode == EditConnection) {
if (connectionShape) {
QPointF handlePos = connectionShape->handlePosition(m_activeHandle);
handlePos = connectionShape->shapeToDocument(handlePos);
repaintRect = handlePaintRect(handlePos);
canvas()->updateCanvas(repaintRect.adjusted(-radius, -radius, radius, radius));
}
}
}
if (m_resetPaint) {
QList<KoShape*> shapes = canvas()->shapeManager()->shapes();
for (QList<KoShape*>::const_iterator end = shapes.constBegin(); end != shapes.constEnd(); ++end) {
KoShape* shape = *end;
if (!dynamic_cast<KoConnectionShape*>(shape)) {
// only paint connection points of textShapes not inside a tos container and other shapes
if (shape->shapeId() == TextShape_SHAPEID && dynamic_cast<KoTosContainer*>(shape->parent()))
continue;
KoConnectionPoints connectionPoints = shape->connectionPoints();
KoConnectionPoints::const_iterator cp = connectionPoints.constBegin();
KoConnectionPoints::const_iterator lastCp = connectionPoints.constEnd();
for(; cp != lastCp; ++cp) {
repaintRect = handleGrabRect(shape->shapeToDocument(cp.value().position));
canvas()->updateCanvas(repaintRect.adjusted(-radius, -radius, radius, radius));
}
}
}
}
m_resetPaint = false;
}
KoConnectionShape * ConnectionTool::nearestConnectionShape(const QList<KoShape*> &shapes, const QPointF &mousePos) const
{
int grabDistance = grabSensitivity();
KoConnectionShape * nearestConnectionShape = 0;
qreal minSquaredDistance = HUGE_VAL;
const qreal maxSquaredDistance = grabDistance*grabDistance;
foreach(KoShape *shape, shapes) {
KoConnectionShape * connectionShape = dynamic_cast<KoConnectionShape*>(shape);
if (!connectionShape || !connectionShape->isParametricShape())
continue;
// convert document point to shape coordinates
QPointF p = connectionShape->documentToShape(mousePos);
// our region of interest, i.e. a region around our mouse position
QRectF roi = handleGrabRect(p);
// check all segments of this shape which intersect the region of interest
QList<KoPathSegment> segments = connectionShape->segmentsAt(roi);
foreach (const KoPathSegment &s, segments) {
qreal nearestPointParam = s.nearestPoint(p);
QPointF nearestPoint = s.pointAt(nearestPointParam);
QPointF diff = p - nearestPoint;
qreal squaredDistance = diff.x()*diff.x() + diff.y()*diff.y();
// are we within the allowed distance ?
if (squaredDistance > maxSquaredDistance)
continue;
// are we closer to the last closest point ?
if (squaredDistance < minSquaredDistance) {
nearestConnectionShape = connectionShape;
minSquaredDistance = squaredDistance;
}
}
int ConnectionTool::handleAtPoint(KoShape *shape, const QPointF &mousePoint) const
{
if (!shape)
return -1;
const QPointF shapePoint = shape->documentToShape(mousePoint);
KoConnectionShape * connectionShape = dynamic_cast<KoConnectionShape*>(shape);
if (connectionShape) {
// check connection shape handles
return connectionShape->handleIdAt(handleGrabRect(shapePoint));
} else {
// check connection points
int grabDistance = grabSensitivity();
qreal minDistance = HUGE_VAL;
int handleId = -1;
KoConnectionPoints connectionPoints = shape->connectionPoints();
KoConnectionPoints::const_iterator cp = connectionPoints.constBegin();
KoConnectionPoints::const_iterator lastCp = connectionPoints.constEnd();
for(; cp != lastCp; ++cp) {
qreal d = squareDistance(shapePoint, cp.value().position);
if (d <= grabDistance && d < minDistance) {
handleId = cp.key();
minDistance = d;
}
}
return handleId;
}
}
KoShape * ConnectionTool::findNonConnectionShapeAtPosition(const QPointF &position) const
{
QList<KoShape*> shapes = canvas()->shapeManager()->shapesAt(handleGrabRect(position));
if (!shapes.isEmpty()) {
qSort(shapes.begin(), shapes.end(), KoShape::compareShapeZIndex);
for (QList<KoShape*>::const_iterator end = shapes.constEnd()-1; end >= shapes.constBegin(); --end) {
KoShape* shape = *end;
if (!dynamic_cast<KoConnectionShape*>(shape) && shape->shapeId() != TextShape_SHAPEID) {
return shape;
}
}
}
return 0;
}
void KoCreatePathTool::mouseMoveEvent(KoPointerEvent *event)
{
Q_D(KoCreatePathTool);
KoPathPoint *endPoint = d->endPointAtPosition(event->point);
if (d->hoveredPoint != endPoint) {
if (d->hoveredPoint) {
QPointF nodePos = d->hoveredPoint->parent()->shapeToDocument(d->hoveredPoint->point());
canvas()->updateCanvas(handlePaintRect(nodePos));
}
d->hoveredPoint = endPoint;
if (d->hoveredPoint) {
QPointF nodePos = d->hoveredPoint->parent()->shapeToDocument(d->hoveredPoint->point());
canvas()->updateCanvas(handlePaintRect(nodePos));
}
}
if (!pathStarted()) {
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
canvas()->snapGuide()->snap(event->point, event->modifiers());
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
d->mouseOverFirstPoint = false;
return;
}
d->mouseOverFirstPoint = handleGrabRect(d->firstPoint->point()).contains(event->point);
canvas()->updateCanvas(d->shape->boundingRect());
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
QPointF snappedPosition = canvas()->snapGuide()->snap(event->point, event->modifiers());
d->repaintActivePoint();
if (event->buttons() & Qt::LeftButton) {
d->pointIsDragged = true;
QPointF offset = snappedPosition - d->activePoint->point();
d->activePoint->setControlPoint2(d->activePoint->point() + offset);
// pressing <alt> stops controls points moving symmetrically
if ((event->modifiers() & Qt::AltModifier) == 0)
d->activePoint->setControlPoint1(d->activePoint->point() - offset);
d->repaintActivePoint();
} else {
d->activePoint->setPoint(snappedPosition);
}
canvas()->updateCanvas(d->shape->boundingRect());
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
}
KoShape * ConnectionTool::findShapeAtPosition(const QPointF &position) const
{
QList<KoShape*> shapes = canvas()->shapeManager()->shapesAt(handleGrabRect(position));
if (!shapes.isEmpty()) {
qSort(shapes.begin(), shapes.end(), KoShape::compareShapeZIndex);
// we want to priorize connection shape handles, even if the connection shape
// is not at the top of the shape stack at the mouse position
KoConnectionShape *connectionShape = nearestConnectionShape(shapes, position);
// use best connection shape or first shape from stack (last in the list) if not found
if (connectionShape) {
return connectionShape;
} else {
for (QList<KoShape*>::const_iterator end = shapes.constEnd()-1; end >= shapes.constBegin(); --end) {
KoShape* shape = *end;
if (!dynamic_cast<KoConnectionShape*>(shape) && shape->shapeId() != TextShape_SHAPEID) {
return shape;
}
}
}
}
return 0;
}
void KoCreatePathTool::mousePressEvent(KoPointerEvent *event)
{
Q_D(KoCreatePathTool);
//Right click removes last point
if (event->button() == Qt::RightButton) {
removeLastPoint();
return;
}
const bool isOverFirstPoint = d->shape &&
handleGrabRect(d->firstPoint->point()).contains(event->point);
bool haveCloseModifier = (listeningToModifiers() && (event->modifiers() & Qt::ShiftModifier));
if ((event->button() == Qt::LeftButton) && haveCloseModifier && !isOverFirstPoint) {
endPathWithoutLastPoint();
return;
}
d->finishAfterThisPoint = false;
if (pathStarted()) {
if (isOverFirstPoint) {
d->activePoint->setPoint(d->firstPoint->point());
canvas()->updateCanvas(d->shape->boundingRect());
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
if (haveCloseModifier) {
d->shape->closeMerge();
// we are closing the path, so reset the existing start path point
d->existingStartPoint = 0;
// finish path
endPath();
} else {
// the path shape will get closed when the user releases
// the mouse button
d->finishAfterThisPoint = true;
}
} else {
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
QPointF point = canvas()->snapGuide()->snap(event->point, event->modifiers());
// check whether we hit an start/end node of an existing path
d->existingEndPoint = d->endPointAtPosition(point);
if (d->existingEndPoint.isValid() && d->existingEndPoint != d->existingStartPoint) {
point = d->existingEndPoint.path->shapeToDocument(d->existingEndPoint.point->point());
d->activePoint->setPoint(point);
// finish path
endPath();
} else {
d->activePoint->setPoint(point);
canvas()->updateCanvas(d->shape->boundingRect());
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
}
}
} else {
KoPathShape *pathShape = new KoPathShape();
d->shape=pathShape;
pathShape->setShapeId(KoPathShapeId);
KoShapeStroke *stroke = new KoShapeStroke(canvas()->resourceManager()->activeStroke());
stroke->setColor(canvas()->resourceManager()->foregroundColor().toQColor());
pathShape->setStroke(stroke);
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
QPointF point = canvas()->snapGuide()->snap(event->point, event->modifiers());
// check whether we hit an start/end node of an existing path
d->existingStartPoint = d->endPointAtPosition(point);
if (d->existingStartPoint.isValid()) {
point = d->existingStartPoint.path->shapeToDocument(d->existingStartPoint.point->point());
}
d->activePoint = pathShape->moveTo(point);
d->firstPoint = d->activePoint;
canvas()->updateCanvas(handlePaintRect(point));
canvas()->updateCanvas(canvas()->snapGuide()->boundingRect());
canvas()->snapGuide()->setEditedShape(pathShape);
d->angleSnapStrategy = new AngleSnapStrategy(d->angleSnappingDelta, d->angleSnapStatus);
canvas()->snapGuide()->addCustomSnapStrategy(d->angleSnapStrategy);
}
if (d->angleSnapStrategy)
d->angleSnapStrategy->setStartPoint(d->activePoint->point());
}
