QSize PianoKeybd::sizeHint() const
{
return mapFromScene(sceneRect()).boundingRect().size();
}
void DiagramDrawItem::setPos2(qreal x,qreal y)
{
myPos2=mapFromScene(QPointF(x,y));
myPolygon=createPath();
setPolygon(myPolygon);
}
GfxNoteItem *Item::createGfxNote(QPointF p0) {
ASSERT(d);
QPointF p1 = mapFromScene(DragLine::drag(scene(), mapToScene(p0), style()));
return newGfxNote(p0, p1);
}
void DrawingPolyItem::setPointPos(int index, const QPointF& scenePos)
{
resizeItem(point(index), mapToParent(mapFromScene(scenePos)));
}
bool IMEView::sceneEvent(QEvent* event)
{
switch (event->type()) {
case QEvent::GestureOverride: {
// consume all gestures if we are handling touches
QGestureEvent* ge = static_cast<QGestureEvent*>(event);
QGesture* g = 0;
if ((g = ge->gesture(Qt::TapGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture(Qt::TapAndHoldGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture(Qt::PinchGesture))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureFlick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureSingleClick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
else if ((g = ge->gesture((Qt::GestureType) SysMgrGestureSingleClick))) {
if (acceptPoint(mapFromScene(ge->mapToGraphicsScene(g->hotSpot())))) {
event->accept();
return true;
}
}
}
break;
case QEvent::Gesture: {
QGestureEvent* ge = static_cast<QGestureEvent*>(event);
QGesture* g = ge->gesture(Qt::TapGesture);
if (g && g->state() == Qt::GestureFinished) {
tapEvent(static_cast<QTapGesture*>(g));
return true;
}
if (!g) {
QGesture* g = ge->gesture((Qt::GestureType) SysMgrGestureScreenEdgeFlick);
if (g && g->state() == Qt::GestureFinished) {
screenEdgeFlickEvent(static_cast<ScreenEdgeFlickGesture*>(g));
return true;
}
}
}
break;
case QEvent::TouchBegin:
touchBegin(static_cast<QTouchEvent*>(event));
return event->isAccepted();
case QEvent::TouchUpdate:
touchUpdate(static_cast<QTouchEvent*>(event));
return event->isAccepted();
case QEvent::TouchEnd:
touchEnd(static_cast<QTouchEvent*>(event));
return event->isAccepted();
default:
break;
}
return QGraphicsObject::sceneEvent(event);
}
/*!
\reimp
*/
void HbRatingSlider::gestureEvent(QGestureEvent *event)
{
Q_D (HbRatingSlider);
if(event->gesture(Qt::TapGesture)) {
HbTapGesture *tap = qobject_cast<HbTapGesture *>(event->gesture(Qt::TapGesture));
switch(tap->state()) {
case Qt::GestureStarted:
{
qreal xVal = mapFromScene(event->mapToGraphicsScene(tap->position( ))).x();
int rating = d->calculateProgressValue(xVal);
if(rating == -1) {
return;
}
if(d->mReadOnly) {
event->ignore();
return;
}
QRectF rect = d->mTouchArea->boundingRect();
if(rect.contains(xVal,0 )) {
HbWidgetFeedback::triggered(this, Hb::InstantPressed);
d->mMousePressed = true;
updatePrimitives();
rating = d->calculateProgressValue(xVal);
setCurrentRating(rating);
event->accept();
}
else {
event->ignore();
}
}
break;
case Qt::GestureFinished: // Reset state
{
qreal xVal = mapFromScene(event->mapToGraphicsScene(tap->position( ))).x();
QRectF rect = d->mTouchArea->boundingRect();
int rating=0;
if(rect.contains(xVal,0 )) {
if(d->mReadOnly) {
event->ignore();
return;
}
if(!d->mMousePressed){
return;
}
if(xVal <0) {
setCurrentRating(0);
emit ratingDone (d->mCurrentValue);
return;
}
rating = d->calculateProgressValue(xVal);
if(!toolTip().isNull()) {
HbToolTip::showText(toolTip(),this);
}
setCurrentRating(rating);
HbWidgetFeedback::triggered(this, Hb::InstantReleased);
if(d->mCurrentValue) {
emit ratingDone (d->mCurrentValue);
}
event->accept();
d->mMousePressed = false;
updatePrimitives();
}
else {
d->mMousePressed = false;
updatePrimitives();
if(xVal <rect.x() ) {
setCurrentRating(0);
emit ratingDone (d->mCurrentValue);
}
}
}
break;
default: break;
}
}else if(event->gesture(Qt::PanGesture)) {
HbPanGesture *pan = qobject_cast<HbPanGesture *>(event->gesture(Qt::PanGesture));
switch(pan->state()) {
case Qt::GestureUpdated:
{
if(!d->mMousePressed) {
return;
}
qreal xVal = mapFromScene(event->mapToGraphicsScene( pan->startPos()+pan->offset())).x();
QRectF rect = d->mTouchArea->boundingRect();
int rating=0;
if(rect.contains(xVal,0 )) {
if(d->mReadOnly) {
event->ignore();
return;
}
if(xVal <0) {
setCurrentRating(0);
return;
}
rating = d->calculateProgressValue(xVal);
if(!toolTip().isNull()) {
HbToolTip::showText(toolTip(),this);
}
setCurrentRating(rating);
HbWidgetFeedback::continuousTriggered(this, Hb::ContinuousDragged);
emit ratingChanged (d->mCurrentValue);
event->accept();
}
else {
setCurrentRating(0);
}
}
break;
case Qt::GestureFinished: // Reset state
{
qreal xVal = mapFromScene(event->mapToGraphicsScene( pan->startPos()+pan->offset())).x();
QRectF rect = d->mTouchArea->boundingRect();
d->mMousePressed = false;
updatePrimitives();
int rating=0;
if(rect.contains(xVal,0 )) {
if(d->mReadOnly) {
event->ignore();
return;
}
}
if(xVal <0) {
setCurrentRating(0);
emit ratingDone (d->mCurrentValue);
return;
}
rating = d->calculateProgressValue(xVal);
setCurrentRating(rating);
HbWidgetFeedback::triggered(this, Hb::InstantReleased);
if(d->mCurrentValue) {
emit ratingDone (d->mCurrentValue);
}
event->accept();
}
default:
break;
}
}
}
void ExploreLiveView::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget * widget)
{
if(!isReady) return;
prePaint(painter);
postPaint(painter);
auto glwidget = (Viewer*)widget;
if (glwidget && meshes.size())
{
QRectF parentRect = parentItem()->sceneBoundingRect();
if (isCacheImage && cachedImage.isNull())
{
QOpenGLContext context;
context.setShareContext(glwidget->context());
context.setFormat(glwidget->format());
context.create();
QOffscreenSurface m_offscreenSurface;
m_offscreenSurface.setFormat(context.format());
m_offscreenSurface.create();
context.makeCurrent(&m_offscreenSurface);
QOpenGLFramebufferObjectFormat fboformat;
fboformat.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
QOpenGLFramebufferObject renderFbo(cacheImageSize*1.5, cacheImageSize, fboformat);
renderFbo.bind();
glwidget->glEnable(GL_DEPTH_TEST);
glwidget->glEnable(GL_BLEND);
glwidget->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glwidget->glCullFace(GL_BACK);
glwidget->glClearColor(0,0,0,0);
glwidget->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glwidget->glViewport(0, 0, cacheImageSize*1.5, cacheImageSize);
// XXX Fix
// glwidget->glPointSize(10);
// Draw aux meshes
for (auto mesh : meshes)
{
if (mesh.isPoints)
glwidget->drawOrientedPoints(mesh.points, mesh.normals, mesh.color, glwidget->pvm);
else
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, glwidget->pvm);
}
glwidget->glDisable(GL_DEPTH_TEST);
glwidget->glFlush();
renderFbo.release();
cachedImage = renderFbo.toImage();
isReady = true;
// Thanks for sharing!
glwidget->makeCurrent();
}
// Draw as image
if(isCacheImage)
{
int w = shapeRect.width();
painter->drawImage(w * -0.5, w * -0.5, cachedImage.scaledToWidth(w));
}
if(!isCacheImage)
{
auto r = shapeRect;
// scale view
double s = 1.5;
r.setWidth(r.width() * s);
r.setHeight(r.height() * s);
r.moveCenter(this->mapToScene(boundingRect().center()));
painter->beginNativePainting();
auto v = scene()->views().first();
QPoint viewDelta = v->mapFromScene(r.topLeft());
if (viewDelta.manhattanLength() > 5) r.moveTopLeft(viewDelta);
auto camera = ExploreProcess::defaultCamera(document->extent().length());
glwidget->eyePos = camera.first;
glwidget->pvm = camera.second;
glwidget->glViewport(r.left(), v->height() - r.height() - r.top(), r.width(), r.height());
// Clipping OpenGL
glwidget->glEnable(GL_SCISSOR_TEST);
glwidget->glScissor(parentRect.x(), v->height() - parentRect.height() - parentRect.top(), parentRect.width(), parentRect.height());
glwidget->glClear(GL_DEPTH_BUFFER_BIT);
// FIX XXX
// glwidget->glPointSize(2);
// Draw aux meshes
for (auto mesh : meshes)
{
if (mesh.isPoints)
glwidget->drawOrientedPoints(mesh.points, mesh.normals, mesh.color, glwidget->pvm);
else
glwidget->drawTriangles(mesh.color, mesh.points, mesh.normals, glwidget->pvm);
}
glwidget->glDisable(GL_SCISSOR_TEST);
painter->endNativePainting();
}
}
}
bool QgsComposerNodesItem::addNode( QPointF pt,
const bool checkArea,
const double radius )
{
const QPointF start = mapFromScene( pt );
double minDistance = std::numeric_limits<double>::max();
double maxDistance = ( checkArea ) ? radius : minDistance;
bool rc = false;
int idx = -1;
for ( int i = 0; i != mPolygon.size(); i++ )
{
// get nodes of polyline
const QPointF pt1 = mPolygon.at( i );
QPointF pt2 = mPolygon.first();
if (( i + 1 ) != mPolygon.size() )
pt2 = mPolygon.at( i + 1 );
// compute line eq
const double coef = ( pt2.y() - pt1.y() ) / ( pt2.x() - pt1.x() );
const double b = pt1.y() - coef * pt1.x();
double distance = std::numeric_limits<double>::max();
if ( qIsInf( coef ) )
distance = qAbs( pt1.x() - start.x() );
else
{
const double coef2 = ( -1 / coef );
const double b2 = start.y() - coef2 * start.x();
QPointF inter;
if ( qIsInf( coef2 ) )
{
distance = qAbs( pt1.y() - start.y() );
inter.setX( start.x() );
inter.setY( pt1.y() );
}
else
{
const double interx = ( b - b2 ) / ( coef2 - coef );
const double intery = interx * coef2 + b2;
inter.setX( interx );
inter.setY( intery );
}
// check if intersection is within the line
const double length1 = computeDistance( inter, pt1 );
const double length2 = computeDistance( inter, pt2 );
const double length3 = computeDistance( pt1, pt2 );
const double length4 = length1 + length2;
if ( qAbs( length3 - length4 ) < std::numeric_limits<float>::epsilon() )
distance = computeDistance( inter, start );
}
if ( distance < minDistance && distance < maxDistance )
{
minDistance = distance;
idx = i;
}
}
if ( idx >= 0 )
{
rc = _addNode( idx, start, maxDistance );
updateSceneRect();
}
return rc;
}
void PianoView::wheelEvent(QWheelEvent* event)
{
int step = event->delta() / 120;
double xmag = transform().m11();
double ymag = transform().m22();
if (event->modifiers() == Qt::ControlModifier) {
if (step > 0) {
for (int i = 0; i < step; ++i) {
if (xmag > 10.0)
break;
scale(1.1, 1.0);
xmag *= 1.1;
}
}
else {
for (int i = 0; i < -step; ++i) {
if (xmag < 0.001)
break;
scale(.9, 1.0);
xmag *= .9;
}
}
emit magChanged(xmag, ymag);
int tpix = (480 * 4) * xmag;
magStep = -5;
if (tpix <= 4000)
magStep = -4;
if (tpix <= 2000)
magStep = -3;
if (tpix <= 1000)
magStep = -2;
if (tpix <= 500)
magStep = -1;
if (tpix <= 128)
magStep = 0;
if (tpix <= 64)
magStep = 1;
if (tpix <= 32)
magStep = 2;
if (tpix <= 16)
magStep = 3;
if (tpix <= 8)
magStep = 4;
if (tpix <= 4)
magStep = 5;
if (tpix <= 2)
magStep = 6;
//
// if xpos <= 0, then the scene is centered
// there is no scroll bar anymore sending
// change signals, so we have to do it here:
//
double xpos = -(mapFromScene(QPointF()).x());
if (xpos <= 0)
emit xposChanged(xpos);
}
else if (event->modifiers() == Qt::ShiftModifier) {
QWheelEvent we(event->pos(), event->delta(), event->buttons(), 0, Qt::Horizontal);
QGraphicsView::wheelEvent(&we);
}
else if (event->modifiers() == 0) {
QGraphicsView::wheelEvent(event);
}
else if (event->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier)) {
if (step > 0) {
for (int i = 0; i < step; ++i) {
if (ymag > 3.0)
break;
scale(1.0, 1.1);
ymag *= 1.1;
}
}
else {
for (int i = 0; i < -step; ++i) {
if (ymag < 0.4)
break;
scale(1.0, .9);
ymag *= .9;
}
}
emit magChanged(xmag, ymag);
}
}
bool NodeBackDrop::isNearbyResizeHandle(const QPointF& scenePos)
{
QPointF p = mapFromScene(scenePos);
QPolygonF resizePoly = _imp->resizeHandle->polygon();
return resizePoly.containsPoint(p,Qt::OddEvenFill);
}
QRectF Snake::boundingRect() const
{
qreal minX = head.x();
qreal minY = head.y();
qreal maxX = head.x();
qreal maxY = head.y();
foreach (QPointF p, tail) {
maxX = p.x() > maxX ? p.x() : maxX;
maxY = p.y() > maxY ? p.y() : maxY;
minX = p.x() < minX ? p.x() : minX;
minY = p.y() < minY ? p.y() : minY;
}
QPointF tl = mapFromScene(QPointF(minX, minY));
QPointF br = mapFromScene(QPointF(maxX, maxY));
QRectF bound = QRectF(tl.x(), // x
tl.y(), // y
br.x() - tl.x() + SNAKE_SIZE, // width
br.y() - tl.y() + SNAKE_SIZE //height
);
return bound;
}
QPainterPath Snake::shape() const
{
QPainterPath path;
path.setFillRule(Qt::WindingFill);
bool NodeBackDrop::isNearbyHeader(const QPointF& scenePos) {
QPointF p = mapFromScene(scenePos);
QRectF headerBbox = _imp->header->boundingRect();
headerBbox.adjust(-5, -5, 5, 5);
return headerBbox.contains(p);
}
void GameView::resizeRubberBand(const QPointF &cursorPoint)
{
if (rubberBand)
rubberBand->setGeometry(QRect(mapFromScene(selectionOrigin), cursorPoint.toPoint()).normalized());
}
void GameView::startRubberBand(const QPointF &_selectionOrigin)
{
selectionOrigin = _selectionOrigin;
rubberBand->setGeometry(QRect(mapFromScene(selectionOrigin), QSize(0, 0)));
rubberBand->show();
}
void QDeclarativePinchArea::updatePinch()
{
Q_D(QDeclarativePinchArea);
if (d->touchPoints.count() == 0) {
if (d->inPinch) {
d->stealMouse = false;
setKeepMouseGrab(false);
d->inPinch = false;
QPointF pinchCenter = mapFromScene(d->sceneLastCenter);
QDeclarativePinchEvent pe(pinchCenter, d->pinchLastScale, d->pinchLastAngle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(pinchCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
emit pinchFinished(&pe);
d->pinchStartDist = 0;
d->pinchActivated = false;
if (d->pinch && d->pinch->target())
d->pinch->setActive(false);
}
return;
}
QTouchEvent::TouchPoint touchPoint1 = d->touchPoints.at(0);
QTouchEvent::TouchPoint touchPoint2 = d->touchPoints.at(d->touchPoints. count() >= 2 ? 1 : 0);
if (d->touchPoints.count() == 2
&& (touchPoint1.state() & Qt::TouchPointPressed || touchPoint2.state() & Qt::TouchPointPressed)) {
d->id1 = touchPoint1.id();
d->sceneStartPoint1 = touchPoint1.scenePos();
d->sceneStartPoint2 = touchPoint2.scenePos();
d->inPinch = false;
d->pinchRejected = false;
d->pinchActivated = true;
} else if (d->pinchActivated && !d->pinchRejected) {
const int dragThreshold = QApplication::startDragDistance();
QPointF p1 = touchPoint1.scenePos();
QPointF p2 = touchPoint2.scenePos();
qreal dx = p1.x() - p2.x();
qreal dy = p1.y() - p2.y();
qreal dist = sqrt(dx*dx + dy*dy);
QPointF sceneCenter = (p1 + p2)/2;
qreal angle = QLineF(p1, p2).angle();
if (d->touchPoints.count() == 1) {
// If we only have one point then just move the center
if (d->id1 == touchPoint1.id())
sceneCenter = d->sceneLastCenter + touchPoint1.scenePos() - d->lastPoint1;
else
sceneCenter = d->sceneLastCenter + touchPoint2.scenePos() - d->lastPoint2;
angle = d->pinchLastAngle;
}
d->id1 = touchPoint1.id();
if (angle > 180)
angle -= 360;
if (!d->inPinch) {
if (d->touchPoints.count() >= 2
&& (qAbs(p1.x()-d->sceneStartPoint1.x()) > dragThreshold
|| qAbs(p1.y()-d->sceneStartPoint1.y()) > dragThreshold
|| qAbs(p2.x()-d->sceneStartPoint2.x()) > dragThreshold
|| qAbs(p2.y()-d->sceneStartPoint2.y()) > dragThreshold)) {
d->sceneStartCenter = sceneCenter;
d->sceneLastCenter = sceneCenter;
d->pinchStartCenter = mapFromScene(sceneCenter);
d->pinchStartDist = dist;
d->pinchStartAngle = angle;
d->pinchLastScale = 1.0;
d->pinchLastAngle = angle;
d->pinchRotation = 0.0;
d->lastPoint1 = p1;
d->lastPoint2 = p2;
QDeclarativePinchEvent pe(d->pinchStartCenter, 1.0, angle, 0.0);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(d->pinchStartCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
pe.setPointCount(d->touchPoints.count());
emit pinchStarted(&pe);
if (pe.accepted()) {
d->inPinch = true;
d->stealMouse = true;
QGraphicsScene *s = scene();
if (s && s->mouseGrabberItem() != this)
grabMouse();
setKeepMouseGrab(true);
if (d->pinch && d->pinch->target()) {
d->pinchStartPos = pinch()->target()->pos();
d->pinchStartScale = d->pinch->target()->scale();
d->pinchStartRotation = d->pinch->target()->rotation();
d->pinch->setActive(true);
}
} else {
d->pinchRejected = true;
}
}
} else if (d->pinchStartDist > 0) {
qreal scale = dist ? dist / d->pinchStartDist : d->pinchLastScale;
qreal da = d->pinchLastAngle - angle;
if (da > 180)
da -= 360;
else if (da < -180)
da += 360;
d->pinchRotation += da;
QPointF pinchCenter = mapFromScene(sceneCenter);
QDeclarativePinchEvent pe(pinchCenter, scale, angle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(mapFromScene(d->sceneLastCenter));
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(touchPoint1.pos());
pe.setPoint2(touchPoint2.pos());
pe.setPointCount(d->touchPoints.count());
d->pinchLastScale = scale;
d->sceneLastCenter = sceneCenter;
d->pinchLastAngle = angle;
d->lastPoint1 = touchPoint1.scenePos();
d->lastPoint2 = touchPoint2.scenePos();
emit pinchUpdated(&pe);
if (d->pinch && d->pinch->target()) {
qreal s = d->pinchStartScale * scale;
s = qMin(qMax(pinch()->minimumScale(),s), pinch()->maximumScale());
pinch()->target()->setScale(s);
QPointF pos = sceneCenter - d->sceneStartCenter + d->pinchStartPos;
if (pinch()->axis() & QDeclarativePinch::XAxis) {
qreal x = pos.x();
if (x < pinch()->xmin())
x = pinch()->xmin();
else if (x > pinch()->xmax())
x = pinch()->xmax();
pinch()->target()->setX(x);
}
if (pinch()->axis() & QDeclarativePinch::YAxis) {
qreal y = pos.y();
if (y < pinch()->ymin())
y = pinch()->ymin();
else if (y > pinch()->ymax())
y = pinch()->ymax();
pinch()->target()->setY(y);
}
if (d->pinchStartRotation >= pinch()->minimumRotation()
&& d->pinchStartRotation <= pinch()->maximumRotation()) {
qreal r = d->pinchRotation + d->pinchStartRotation;
r = qMin(qMax(pinch()->minimumRotation(),r), pinch()->maximumRotation());
pinch()->target()->setRotation(r);
}
}
}
}
}
void EllipseTextureGraphicsItem::_doDrawOutput(QPainter* painter)
{
Q_UNUSED(painter);
// Get input and output ellipses.
std::tr1::shared_ptr<Ellipse> inputEllipse = std::tr1::static_pointer_cast<Ellipse>(_inputShape);
std::tr1::shared_ptr<Ellipse> outputEllipse = std::tr1::static_pointer_cast<Ellipse>(_shape);
// Start / end angle.
//const float startAngle = 0;
//const float endAngle = 2*M_PI;
//
//float angle;
QPointF currentInputPoint;
QPointF prevInputPoint(0, 0);
QPointF currentOutputPoint;
QPointF prevOutputPoint(0, 0);
// Input ellipse parameters.
const QPointF& inputCenter = inputEllipse->getCenter();
const QPointF& inputControlCenter = inputEllipse->getVertex(4);
float inputHorizRadius = inputEllipse->getHorizontalRadius();
float inputVertRadius = inputEllipse->getVerticalRadius();
float inputRotation = inputEllipse->getRotationRadians();
// Output ellipse parameters.
const QPointF& outputCenter = mapFromScene(outputEllipse->getCenter());
const QPointF& outputControlCenter = mapFromScene(outputEllipse->getVertex(4));
float outputHorizRadius = outputEllipse->getHorizontalRadius();
float outputVertRadius = outputEllipse->getVerticalRadius();
float outputRotation = outputEllipse->getRotationRadians();
// Variation in angle at each step of the loop.
const int N_TRIANGLES = 100;
const float ANGLE_STEP = 2*M_PI/N_TRIANGLES;
float circleAngle = 0;
for (int i=0; i<=N_TRIANGLES; i++, circleAngle += ANGLE_STEP)
{
// Set next (current) points.
_setPointOfEllipseAtAngle(currentInputPoint, inputCenter, inputHorizRadius, inputVertRadius, inputRotation, circleAngle);
_setPointOfEllipseAtAngle(currentOutputPoint, outputCenter, outputHorizRadius, outputVertRadius, outputRotation, circleAngle);
// We don't draw the first point.
if (i > 0)
{
// Draw triangle.
glBegin(GL_TRIANGLES);
Util::setGlTexPoint(*_texture, inputControlCenter, outputControlCenter);
Util::setGlTexPoint(*_texture, prevInputPoint, prevOutputPoint);
Util::setGlTexPoint(*_texture, currentInputPoint, currentOutputPoint);
glEnd();
}
// Save point for next iteration.
prevInputPoint.setX(currentInputPoint.x());
prevInputPoint.setY(currentInputPoint.y());
prevOutputPoint.setX(currentOutputPoint.x());
prevOutputPoint.setY(currentOutputPoint.y());
}
}
QRect ImageView::sceneToViewport(const QRectF &rect) const
{
QPoint topLeft = mapFromScene(rect.topLeft());
QPoint bottomRight = mapFromScene(rect.bottomRight());
return QRect(topLeft, bottomRight);
}
void AbstractGraphicsRectItem::updateBottomRight(const QPointF &newPos)
{
QRectF r = rect();
r.setBottomRight(mapFromScene(newPos));
updateRect(r);
}
void QgsComposerMouseHandles::drawSelectedItemBounds( QPainter* painter )
{
//draw dotted border around selected items to give visual feedback which items are selected
QList<QgsComposerItem*> selectedItems = mComposition->selectedComposerItems( false );
if ( selectedItems.size() == 0 )
{
return;
}
//use difference mode so that they are visible regardless of item colors
painter->save();
painter->setCompositionMode( QPainter::CompositionMode_Difference );
// use a grey dashed pen - in difference mode this should always be visible
QPen selectedItemPen = QPen( QColor( 144, 144, 144, 255 ) );
selectedItemPen.setStyle( Qt::DashLine );
selectedItemPen.setWidth( 0 );
painter->setPen( selectedItemPen );
painter->setBrush( Qt::NoBrush );
QList<QgsComposerItem*>::iterator itemIter = selectedItems.begin();
for ( ; itemIter != selectedItems.end(); ++itemIter )
{
//get bounds of selected item
QPolygonF itemBounds;
if ( mIsDragging && !( *itemIter )->positionLock() )
{
//if currently dragging, draw selected item bounds relative to current mouse position
//first, get bounds of current item in scene coordinates
QPolygonF itemSceneBounds = ( *itemIter )->mapToScene(( *itemIter )->rectWithFrame() );
//now, translate it by the current movement amount
//IMPORTANT - this is done in scene coordinates, since we don't want any rotation/non-translation transforms to affect the movement
itemSceneBounds.translate( transform().dx(), transform().dy() );
//finally, remap it to the mouse handle item's coordinate system so it's ready for drawing
itemBounds = mapFromScene( itemSceneBounds );
}
else if ( mIsResizing && !( *itemIter )->positionLock() )
{
//if currently resizing, calculate relative resize of this item
if ( selectedItems.size() > 1 )
{
//get item bounds in mouse handle item's coordinate system
QRectF itemRect = mapRectFromItem(( *itemIter ), ( *itemIter )->rectWithFrame() );
//now, resize it relative to the current resized dimensions of the mouse handles
QgsComposerUtils::relativeResizeRect( itemRect, QRectF( -mResizeMoveX, -mResizeMoveY, mBeginHandleWidth, mBeginHandleHeight ), mResizeRect );
itemBounds = QPolygonF( itemRect );
}
else
{
//single item selected
itemBounds = rect();
}
}
else
{
//not resizing or moving, so just map from scene bounds
itemBounds = mapRectFromItem(( *itemIter ), ( *itemIter )->rectWithFrame() );
}
painter->drawPolygon( itemBounds );
}
painter->restore();
}
void SPoint::setPosition(QPointF point)
{
position=mapFromScene(point);
}
void PolygonObject::updateRubber(QPainter* painter)
{
int rubberMode = objectRubberMode();
if(rubberMode == OBJ_RUBBER_POLYGON)
{
setObjectPos(objectRubberPoint("POLYGON_POINT_0"));
bool ok = false;
QString numStr = objectRubberText("POLYGON_NUM_POINTS");
if(numStr.isNull()) return;
int num = numStr.toInt(&ok);
if(!ok) return;
QString appendStr;
QPainterPath rubberPath;
rubberPath.moveTo(mapFromScene(objectRubberPoint("POLYGON_POINT_0")));
for(int i = 1; i <= num; i++)
{
appendStr = "POLYGON_POINT_" + QString().setNum(i);
QPointF appendPoint = mapFromScene(objectRubberPoint(appendStr));
rubberPath.lineTo(appendPoint);
}
//rubberPath.lineTo(0,0);
updatePath(rubberPath);
//Ensure the path isn't updated until the number of points is changed again
setObjectRubberText("POLYGON_NUM_POINTS", QString());
}
else if(rubberMode == OBJ_RUBBER_POLYGON_INSCRIBE)
{
setObjectPos(objectRubberPoint("POLYGON_CENTER"));
quint16 numSides = objectRubberPoint("POLYGON_NUM_SIDES").x();
QPointF inscribePoint = mapFromScene(objectRubberPoint("POLYGON_INSCRIBE_POINT"));
QLineF inscribeLine = QLineF(QPointF(0,0), inscribePoint);
qreal inscribeAngle = inscribeLine.angle();
qreal inscribeInc = 360.0/numSides;
if(painter) drawRubberLine(inscribeLine, painter, VIEW_COLOR_CROSSHAIR);
QPainterPath inscribePath;
//First Point
inscribePath.moveTo(inscribePoint);
//Remaining Points
for(int i = 1; i < numSides; i++)
{
inscribeLine.setAngle(inscribeAngle + inscribeInc*i);
inscribePath.lineTo(inscribeLine.p2());
}
updatePath(inscribePath);
}
else if(rubberMode == OBJ_RUBBER_POLYGON_CIRCUMSCRIBE)
{
setObjectPos(objectRubberPoint("POLYGON_CENTER"));
quint16 numSides = objectRubberPoint("POLYGON_NUM_SIDES").x();
QPointF circumscribePoint = mapFromScene(objectRubberPoint("POLYGON_CIRCUMSCRIBE_POINT"));
QLineF circumscribeLine = QLineF(QPointF(0,0), circumscribePoint);
qreal circumscribeAngle = circumscribeLine.angle();
qreal circumscribeInc = 360.0/numSides;
if(painter) drawRubberLine(circumscribeLine, painter, VIEW_COLOR_CROSSHAIR);
QPainterPath circumscribePath;
//First Point
QLineF prev(circumscribeLine.p2(), QPointF(0,0));
prev = prev.normalVector();
circumscribeLine.setAngle(circumscribeAngle + circumscribeInc);
QLineF perp(circumscribeLine.p2(), QPointF(0,0));
perp = perp.normalVector();
QPointF iPoint;
perp.intersect(prev, &iPoint);
circumscribePath.moveTo(iPoint);
//Remaining Points
for(int i = 2; i <= numSides; i++)
{
prev = perp;
circumscribeLine.setAngle(circumscribeAngle + circumscribeInc*i);
perp = QLineF(circumscribeLine.p2(), QPointF(0,0));
perp = perp.normalVector();
perp.intersect(prev, &iPoint);
circumscribePath.lineTo(iPoint);
}
updatePath(circumscribePath);
}
else if(rubberMode == OBJ_RUBBER_GRIP)
{
if(painter)
{
int elemCount = normalPath.elementCount();
QPointF gripPoint = objectRubberPoint("GRIP_POINT");
if(gripIndex == -1) gripIndex = findIndex(gripPoint);
if(gripIndex == -1) return;
int m = 0;
int n = 0;
if(!gripIndex) { m = elemCount-1; n = 1; }
else if(gripIndex == elemCount-1) { m = elemCount-2; n = 0; }
else { m = gripIndex-1; n = gripIndex+1; }
QPainterPath::Element em = normalPath.elementAt(m);
QPainterPath::Element en = normalPath.elementAt(n);
QPointF emPoint = QPointF(em.x, em.y);
QPointF enPoint = QPointF(en.x, en.y);
painter->drawLine(emPoint, mapFromScene(objectRubberPoint(QString())));
painter->drawLine(enPoint, mapFromScene(objectRubberPoint(QString())));
QLineF rubLine(mapFromScene(gripPoint), mapFromScene(objectRubberPoint(QString())));
drawRubberLine(rubLine, painter, VIEW_COLOR_CROSSHAIR);
}
}
}
void CircleObject::updateRubber(QPainter* painter)
{
int rubberMode = objectRubberMode();
if(rubberMode == OBJ_RUBBER_CIRCLE_1P_RAD)
{
QPointF sceneCenterPoint = objectRubberPoint("CIRCLE_CENTER");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_RADIUS");
QPointF itemCenterPoint = mapFromScene(sceneCenterPoint);
QPointF itemQSnapPoint = mapFromScene(sceneQSnapPoint);
QLineF itemLine(itemCenterPoint, itemQSnapPoint);
setObjectCenter(sceneCenterPoint);
QLineF sceneLine(sceneCenterPoint, sceneQSnapPoint);
qreal radius = sceneLine.length();
setObjectRadius(radius);
if(painter) drawRubberLine(itemLine, painter, VIEW_COLOR_CROSSHAIR);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_1P_DIA)
{
QPointF sceneCenterPoint = objectRubberPoint("CIRCLE_CENTER");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_DIAMETER");
QPointF itemCenterPoint = mapFromScene(sceneCenterPoint);
QPointF itemQSnapPoint = mapFromScene(sceneQSnapPoint);
QLineF itemLine(itemCenterPoint, itemQSnapPoint);
setObjectCenter(sceneCenterPoint);
QLineF sceneLine(sceneCenterPoint, sceneQSnapPoint);
qreal diameter = sceneLine.length();
setObjectDiameter(diameter);
if(painter) drawRubberLine(itemLine, painter, VIEW_COLOR_CROSSHAIR);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_2P)
{
QPointF sceneTan1Point = objectRubberPoint("CIRCLE_TAN1");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_TAN2");
QLineF sceneLine(sceneTan1Point, sceneQSnapPoint);
setObjectCenter(sceneLine.pointAt(0.5));
qreal diameter = sceneLine.length();
setObjectDiameter(diameter);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_3P)
{
QPointF sceneTan1Point = objectRubberPoint("CIRCLE_TAN1");
QPointF sceneTan2Point = objectRubberPoint("CIRCLE_TAN2");
QPointF sceneTan3Point = objectRubberPoint("CIRCLE_TAN3");
double sceneCenterX;
double sceneCenterY;
getArcCenter(sceneTan1Point.x(), sceneTan1Point.y(),
sceneTan2Point.x(), sceneTan2Point.y(),
sceneTan3Point.x(), sceneTan3Point.y(),
&sceneCenterX, &sceneCenterY);
QPointF sceneCenterPoint(sceneCenterX, sceneCenterY);
QLineF sceneLine(sceneCenterPoint, sceneTan3Point);
setObjectCenter(sceneCenterPoint);
qreal radius = sceneLine.length();
setObjectRadius(radius);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_GRIP)
{
if(painter)
{
QPointF gripPoint = objectRubberPoint("GRIP_POINT");
if(gripPoint == objectCenter())
{
painter->drawEllipse(rect().translated(mapFromScene(objectRubberPoint(QString()))-mapFromScene(gripPoint)));
}
else
{
qreal gripRadius = QLineF(objectCenter(), objectRubberPoint(QString())).length();
painter->drawEllipse(QPointF(), gripRadius, gripRadius);
}
QLineF rubLine(mapFromScene(gripPoint), mapFromScene(objectRubberPoint(QString())));
drawRubberLine(rubLine, painter, VIEW_COLOR_CROSSHAIR);
}
}
}
//virtual
bool AlphabetPage::tapAndHoldGesture(QTapAndHoldGesture *tapHoldEvent,QGestureEvent * baseGestureEvent)
{
// qDebug() << __PRETTY_FUNCTION__ << ": Tap-N-Hold Gesture";
//if nothing is tracking, reject
int mainTouchId;
if (!anyTouchTracking(&mainTouchId))
{
qDebug() << __PRETTY_FUNCTION__ << ": Rejected; touch FSM reports no touchId is currently tracked";
return true;
}
//TODO: MULTI-TOUCH: here is where I can get into deep trouble; I've just assumed that the main touch point is part of this gesture. It need not be
if (!okToUseTapAndHold(mainTouchId))
{
qDebug() << __PRETTY_FUNCTION__ << ": Rejected; a previous gesture has already claimed touch id " << mainTouchId;
return true;
}
AlphabetIconLayout * pAlphaLayout = qobject_cast<AlphabetIconLayout *>(m_qp_iconLayout);
if (!pAlphaLayout)
{
qDebug() << __PRETTY_FUNCTION__ << ": Rejected; There doesn't seem to be a layout on this page (or it isn't an Alpha layout)";
return true;
}
//if I'm not in reorder mode, then flip to it now; this is just going to change all the graphics in the icons
// and enable them to sense taps on special, decorator areas
setPageMode(PageMode::Reorder); //note calling this when already in Reorder mode does nothing, so it's ok to just call it and avoid the "if"
QPointF positionOfTapICS = mapFromScene(baseGestureEvent->mapToGraphicsScene(tapHoldEvent->hotSpot()));
// qDebug() << "tap-n-hold position from the event: " << positionOfTapICS;
//TODO: TEMP: the tap coordinate is in PAGE ICS...the layout ICS is a little bit different. It needs to be mapped for total correctness
// for now, this will work
QPointF positionOfTapLayoutCS = layoutCoordinateFromPageCoordinate(positionOfTapICS);
//first, it there is an icon already in motion, silently consume event (yum!)
if (m_qp_cached_trackingIcon)
{
qDebug() << __PRETTY_FUNCTION__ << ": Rejected; Already tracking an icon";
return true;
}
//tell the layout to start tracking an icon at the position given
if (!pAlphaLayout->startTrackingIcon(positionOfTapLayoutCS,m_trackingIconUids))
{
qDebug() << __PRETTY_FUNCTION__ << ": Rejected; No icon found at tap-n-hold coordinate " << positionOfTapLayoutCS;
return true;
}
//grab the icon ptr from the icon heap
m_qp_cached_trackingIcon = IconHeap::iconHeap()->getIcon(m_trackingIconUids.second,FindIconHint::Copied);
if (!m_qp_cached_trackingIcon)
{
//TODO: TEMP: DEBUG: this doesn't have to end fatally - but until I'm ready for release of the code, i'd like to catch heap-fail problems explicitly
//DIE!!!
qCritical() << __PRETTY_FUNCTION__ << ": icon heap doesn't have icon uid " << m_trackingIconUids.second; /// <<<--- This should abort the whole process
return true;
}
// QDrag *drag = new QDrag(baseGestureEvent->widget());
// QMimeData *mimeData = new QMimeData;
//
// mimeData->setText("something");
// drag->setMimeData(mimeData);
//// drag->setPixmap(0);
//
// qDebug() << "exec!";
// Qt::DropAction dropAction = drag->exec();
// qDebug() << "post exec";
m_qp_cached_trackingIcon->slotEnableIconAutoRepaint();
m_qp_cached_trackingIcon->take(this); ///theoretically this could be rejected! //TODO: handling
m_qp_cached_trackingIcon->setVisible(true);
m_qp_cached_trackingIcon->setPos(positionOfTapICS);
m_qp_cached_trackingIcon->update();
return true;
}
//! [4]
void Mouse::timerEvent(QTimerEvent *)
{
//! [4]
// Don't move too far away
//! [5]
QLineF lineToCenter(QPointF(0, 0), mapFromScene(0, 0));
if (lineToCenter.length() > 150) {
qreal angleToCenter = ::acos(lineToCenter.dx() / lineToCenter.length());
if (lineToCenter.dy() < 0)
angleToCenter = TwoPi - angleToCenter;
angleToCenter = normalizeAngle((Pi - angleToCenter) + Pi / 2);
if (angleToCenter < Pi && angleToCenter > Pi / 4) {
// Rotate left
angle += (angle < -Pi / 2) ? 0.25 : -0.25;
} else if (angleToCenter >= Pi && angleToCenter < (Pi + Pi / 2 + Pi / 4)) {
// Rotate right
angle += (angle < Pi / 2) ? 0.25 : -0.25;
}
} else if (::sin(angle) < 0) {
angle += 0.25;
} else if (::sin(angle) > 0) {
angle -= 0.25;
//! [5] //! [6]
}
//! [6]
// Try not to crash with any other mice
//! [7]
QList<QGraphicsItem *> dangerMice = scene()->items(QPolygonF()
<< mapToScene(0, 0)
<< mapToScene(-30, -50)
<< mapToScene(30, -50));
foreach (QGraphicsItem *item, dangerMice) {
if (item == this)
continue;
QLineF lineToMouse(QPointF(0, 0), mapFromItem(item, 0, 0));
qreal angleToMouse = ::acos(lineToMouse.dx() / lineToMouse.length());
if (lineToMouse.dy() < 0)
angleToMouse = TwoPi - angleToMouse;
angleToMouse = normalizeAngle((Pi - angleToMouse) + Pi / 2);
if (angleToMouse >= 0 && angleToMouse < Pi / 2) {
// Rotate right
angle += 0.5;
} else if (angleToMouse <= TwoPi && angleToMouse > (TwoPi - Pi / 2)) {
// Rotate left
angle -= 0.5;
//! [7] //! [8]
}
//! [8] //! [9]
}
//! [9]
// Add some random movement
//! [10]
if (dangerMice.size() > 1 && (qrand() % 10) == 0) {
if (qrand() % 1)
angle += (qrand() % 100) / 500.0;
else
angle -= (qrand() % 100) / 500.0;
}
//! [10]
//! [11]
speed += (-50 + qrand() % 100) / 100.0;
qreal dx = ::sin(angle) * 10;
mouseEyeDirection = (qAbs(dx / 5) < 1) ? 0 : dx / 5;
rotate(dx);
setPos(mapToParent(0, -(3 + sin(speed) * 3)));
}
QgsMapCanvasAnnotationItem::MouseMoveAction QgsMapCanvasAnnotationItem::moveActionForPosition( QPointF pos ) const
{
QPointF itemPos = mapFromScene( pos );
int cursorSensitivity = 7;
if ( mAnnotation && mAnnotation->hasFixedMapPosition() &&
std::fabs( itemPos.x() ) < cursorSensitivity && std::fabs( itemPos.y() ) < cursorSensitivity ) //move map point if position is close to the origin
{
return MoveMapPosition;
}
QPointF offset = mAnnotation && mAnnotation->hasFixedMapPosition() ? mAnnotation->frameOffsetFromReferencePoint() : QPointF( 0, 0 );
QSizeF frameSize = mAnnotation ? mAnnotation->frameSize() : QSizeF( 0, 0 );
bool left, right, up, down;
left = std::fabs( itemPos.x() - offset.x() ) < cursorSensitivity;
right = std::fabs( itemPos.x() - ( offset.x() + frameSize.width() ) ) < cursorSensitivity;
up = std::fabs( itemPos.y() - offset.y() ) < cursorSensitivity;
down = std::fabs( itemPos.y() - ( offset.y() + frameSize.height() ) ) < cursorSensitivity;
if ( left && up )
{
return ResizeFrameLeftUp;
}
else if ( right && up )
{
return ResizeFrameRightUp;
}
else if ( left && down )
{
return ResizeFrameLeftDown;
}
else if ( right && down )
{
return ResizeFrameRightDown;
}
if ( left )
{
return ResizeFrameLeft;
}
if ( right )
{
return ResizeFrameRight;
}
if ( up )
{
return ResizeFrameUp;
}
if ( down )
{
return ResizeFrameDown;
}
//finally test if pos is in the frame area
if ( itemPos.x() >= offset.x() && itemPos.x() <= ( offset.x() + frameSize.width() )
&& itemPos.y() >= offset.y() && itemPos.y() <= ( offset.y() + frameSize.height() ) )
{
return MoveFramePosition;
}
return NoAction;
}
void CircleObject::updateRubber(QPainter* painter)
{
int rubberMode = objectRubberMode();
if(rubberMode == OBJ_RUBBER_CIRCLE_1P_RAD)
{
QPointF sceneCenterPoint = objectRubberPoint("CIRCLE_CENTER");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_RADIUS");
QPointF itemCenterPoint = mapFromScene(sceneCenterPoint);
QPointF itemQSnapPoint = mapFromScene(sceneQSnapPoint);
QLineF itemLine(itemCenterPoint, itemQSnapPoint);
setObjectCenter(sceneCenterPoint);
QLineF sceneLine(sceneCenterPoint, sceneQSnapPoint);
qreal radius = sceneLine.length();
setObjectRadius(radius);
if(painter) painter->drawLine(itemLine);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_1P_DIA)
{
QPointF sceneCenterPoint = objectRubberPoint("CIRCLE_CENTER");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_DIAMETER");
QPointF itemCenterPoint = mapFromScene(sceneCenterPoint);
QPointF itemQSnapPoint = mapFromScene(sceneQSnapPoint);
QLineF itemLine(itemCenterPoint, itemQSnapPoint);
setObjectCenter(sceneCenterPoint);
QLineF sceneLine(sceneCenterPoint, sceneQSnapPoint);
qreal diameter = sceneLine.length();
setObjectDiameter(diameter);
if(painter) painter->drawLine(itemLine);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_2P)
{
QPointF sceneTan1Point = objectRubberPoint("CIRCLE_TAN1");
QPointF sceneQSnapPoint = objectRubberPoint("CIRCLE_TAN2");
QLineF sceneLine(sceneTan1Point, sceneQSnapPoint);
setObjectCenter(sceneLine.pointAt(0.5));
qreal diameter = sceneLine.length();
setObjectDiameter(diameter);
updatePath();
}
else if(rubberMode == OBJ_RUBBER_CIRCLE_3P)
{
QPointF sceneTan1Point = objectRubberPoint("CIRCLE_TAN1");
QPointF sceneTan2Point = objectRubberPoint("CIRCLE_TAN2");
QPointF sceneTan3Point = objectRubberPoint("CIRCLE_TAN3");
double sceneCenterX;
double sceneCenterY;
getArcCenter(sceneTan1Point.x(), sceneTan1Point.y(),
sceneTan2Point.x(), sceneTan2Point.y(),
sceneTan3Point.x(), sceneTan3Point.y(),
&sceneCenterX, &sceneCenterY);
QPointF sceneCenterPoint(sceneCenterX, sceneCenterY);
QLineF sceneLine(sceneCenterPoint, sceneTan3Point);
setObjectCenter(sceneCenterPoint);
qreal radius = sceneLine.length();
setObjectRadius(radius);
updatePath();
}
}
void
Panned::slotEnsurePositionPointerInView(bool page)
{
if (!m_pointerVisible || !scene()) return;
// scroll horizontally only
double x = m_pointerTop.x();
double y = m_pointerTop.y();
//!!! n.b. should probably behave differently if the pointer is
//!!! not full height
int hMin = horizontalScrollBar()->minimum();
int hMax = horizontalScrollBar()->maximum();
double leftDist = 0.15;
double rightDist = 0.15;
int w = width(); // View width in pixels
QRectF r = mapToScene(0, 0, w, 1).boundingRect();
double ws = r.width(); // View width in scene units
double left = r.x(); // View left x in scene units
double right = left + ws; // View right x in scene units
QRectF sr = sceneRect();
double length = sr.width(); // Scene horizontal length
double x1 = sr.x(); // Scene x minimum value
double x2 = x1 + length; // Scene x maximum value
double leftThreshold = left + ws * leftDist;
double rightThreshold = right - ws * rightDist;
// double delta = x - leftThreshold;
// Is x inside the scene? If not do nothing.
if ((x < x1) || (x > x2)) return;
// std::cerr << "page = " << page << std::endl;
int value = horizontalScrollBar()->value();
// std::cerr << "x = " << x << ", left = " << left << ", leftThreshold = " << leftThreshold << ", right = " << right << ", rightThreshold = " << rightThreshold << std::endl;
// Is x inside the view?
// if (x < leftThreshold || (x > rightThreshold && x < right && page)) {
// Allow a little room for x to overshoot the left threshold when the scrollbar is updated.
if (x < leftThreshold - 100 || (x > rightThreshold && x < right && page)) {
// std::cerr << "big scroll (x is off left, or paging)" << std::endl;
// scroll to have the left of the view, plus threshold, at x
value = hMin + (((x - ws * leftDist) - x1) * (hMax - hMin)) / (length - ws);
} else if (x > rightThreshold) {
// std::cerr << "small scroll (x is off right and not paging)" << std::endl;
value = hMin + (((x - ws * (1.0 - rightDist)) - x1) * (hMax - hMin)) / (length - ws);
}
if (value < hMin) value = hMin;
else if (value > hMax) value = hMax;
// If pointer doesn't fit vertically inside current view,
// mouseMoveEvent may be called from scene when ensureVisible()
// is called.
// Then setupMouseEvent() and setCurrentStaff() will be called from scene.
// Then slotUpdatePointerPosition() and slotpointerPositionChanged() will
// be called from NotationWidget.
// Then again Panned::slotEnsurePositionPointerInView() and probably the
// is moved again : this is an infinite recursive call loop which leads to
// crash.
// To avoid it, ensureVisible() should not be called on a rectangle
// highter than the view :
// Convert pointer height from scene coords to pixels
int hPointerPx = mapFromScene(0, 0, 1,
m_pointerHeight).boundingRect().height();
// Compute new pointer height and margin to ensure than pointer + margin
// vertically fit inside current view (default ensureVisible() margins
// are 50 pixels)
double ph; // New height to call ensureVisible()
double ymargin; // New vertical margin to call ensureVisible()
int h = height();
if (h < hPointerPx) {
// If pointer is taller than view replace it with a smaller object
// and use null margins
ph = (m_pointerHeight * h) / hPointerPx;
ymargin = 0;
} else if (h < (hPointerPx + 100)) {
// If pointer is smaller than view but taller than view + margins
// keep pointer as is but use null margins
ph = m_pointerHeight;
ymargin = 0;
} else {
// Sizes are OK : don't change anything
ph = m_pointerHeight;
ymargin = 50; // Keep default margin
}
// before h scroll
if (y != 0) {
if (ph > 6) ph = ph - 5; // for safety
ensureVisible(QRectF(x, y, 1, ph), 50, ymargin);
}
horizontalScrollBar()->setValue(value);
}
NonPdfFrameHandle::NonPdfFrameHandle (QGraphicsScene &scene,
QGraphicsView &view,
const QPointF &pointReference,
int orientationFlags,
NonPdfCropping &nonPdfCropping,
int zValue) :
m_nonPdfCropping (nonPdfCropping),
m_orientationFlags (orientationFlags),
m_disableEventsWhileMovingAutomatically (false),
m_scene (scene),
m_view (view)
{
const double SUBTLE_OPACITY = 0.2;
// Advantages of using ItemIgnoresTransformations:
// 1) handles do not get bigger or smaller depending on the size of the image
// 2) handles never get ugly when zoomed in
// 3) handles never get too tiny when zoomed out
// Disadvantages of using ItemIgnoresTransformation:
// 1) Resizing the preview window with ItemIgnoresTransformations moves the handles out of position
// 2) More conversions back and forth between untransformed and transformed coordinates. This was the deal breaker since
// the transformations were undocumented and ultimately too difficult
// The solution is to have constant-size handles WITHOUT ItemIgnoresTransformations. This means resizing the window
// also involves resizing the handles, but everything else is pretty easy
//
// ItemIgnoresTransformations flag must agree with the QGraphicsRectItem used for the frame box by PdfCropping
setFlags (QGraphicsItem::ItemIsMovable |
QGraphicsItem::ItemIsSelectable |
QGraphicsItem::ItemSendsScenePositionChanges);
// Fill with nice color for better visibility. Note that the pen is disabled by overriding the paint method
setBrush (QBrush (Qt::blue));
setVisible (true);
setZValue (zValue);
setOpacity (SUBTLE_OPACITY);
setPos (pointReference); // Point position is handled in scene/view coordinates
// Add to scene
scene.addItem (this);
QSize handleSize = m_nonPdfCropping.windowSize() / HANDLE_SIZE_AS_FRACTION_OF_WINDOW_SIZE;
// Adjust positions of handles that are not at the top left so handles are laid out symmetrically
QPointF pointPos = pointReference;
if ((orientationFlags & NonPdfCropping::NON_PDF_CROPPING_LEFT) != 0) {
pointPos.setX (pointPos.x() - handleSize.width() / 2.0);
} else if ((orientationFlags & NonPdfCropping::NON_PDF_CROPPING_RIGHT) != 0) {
pointPos.setX (pointPos.x() + handleSize.width() / 2.0);
}
if ((orientationFlags & NonPdfCropping::NON_PDF_CROPPING_TOP) != 0) {
pointPos.setY (pointPos.y() - handleSize.height() / 2.0);
} else if ((orientationFlags & NonPdfCropping::NON_PDF_CROPPING_BOTTOM) != 0) {
pointPos.setY (pointPos.y() + handleSize.height() / 2.0);
}
// Start with geometry. Since point positions are handled in scene/view coordinates, we have to convert
// to local coordinates for the rectangle
QPointF topLeftLocal = mapFromScene (pointPos);
setRect (QRectF (topLeftLocal,
handleSize));
}
/**
Handle the user-induced transformation from \a initial_selection_rect to \a new_selection_rect
*/
void PartEllipse::handleUserTransformation(const QRectF &initial_selection_rect, const QRectF &new_selection_rect) {
QList<QPointF> mapped_points = mapPoints(initial_selection_rect, new_selection_rect, saved_points_);
setRect(QRectF(mapFromScene(mapped_points.at(0)), mapFromScene(mapped_points.at(1))));
}
void QQuickPinchArea::updatePinch()
{
Q_D(QQuickPinchArea);
QQuickWindow *win = window();
if (d->touchPoints.count() < 2) {
setKeepMouseGrab(false);
QQuickWindow *c = window();
if (c && c->mouseGrabberItem() == this)
ungrabMouse();
}
if (d->touchPoints.count() == 0) {
if (d->inPinch) {
d->inPinch = false;
QPointF pinchCenter = mapFromScene(d->sceneLastCenter);
QQuickPinchEvent pe(pinchCenter, d->pinchLastScale, d->pinchLastAngle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(pinchCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
emit pinchFinished(&pe);
d->pinchStartDist = 0;
d->pinchActivated = false;
if (d->pinch && d->pinch->target())
d->pinch->setActive(false);
}
d->initPinch = false;
d->pinchRejected = false;
d->stealMouse = false;
return;
}
QTouchEvent::TouchPoint touchPoint1 = d->touchPoints.at(0);
QTouchEvent::TouchPoint touchPoint2 = d->touchPoints.at(d->touchPoints. count() >= 2 ? 1 : 0);
if (touchPoint1.state() == Qt::TouchPointPressed)
d->sceneStartPoint1 = touchPoint1.scenePos();
if (touchPoint2.state() == Qt::TouchPointPressed)
d->sceneStartPoint2 = touchPoint2.scenePos();
QRectF bounds = clipRect();
// Pinch is not started unless there are exactly two touch points
// AND one or more of the points has just now been pressed (wasn't pressed already)
// AND both points are inside the bounds.
if (d->touchPoints.count() == 2
&& (touchPoint1.state() & Qt::TouchPointPressed || touchPoint2.state() & Qt::TouchPointPressed) &&
bounds.contains(touchPoint1.pos()) && bounds.contains(touchPoint2.pos())) {
d->id1 = touchPoint1.id();
d->pinchActivated = true;
d->initPinch = true;
int touchMouseId = QQuickWindowPrivate::get(win)->touchMouseId;
if (touchPoint1.id() == touchMouseId || touchPoint2.id() == touchMouseId) {
if (win && win->mouseGrabberItem() != this) {
grabMouse();
}
}
}
if (d->pinchActivated && !d->pinchRejected) {
const int dragThreshold = qApp->styleHints()->startDragDistance();
QPointF p1 = touchPoint1.scenePos();
QPointF p2 = touchPoint2.scenePos();
qreal dx = p1.x() - p2.x();
qreal dy = p1.y() - p2.y();
qreal dist = sqrt(dx*dx + dy*dy);
QPointF sceneCenter = (p1 + p2)/2;
qreal angle = QLineF(p1, p2).angle();
if (d->touchPoints.count() == 1) {
// If we only have one point then just move the center
if (d->id1 == touchPoint1.id())
sceneCenter = d->sceneLastCenter + touchPoint1.scenePos() - d->lastPoint1;
else
sceneCenter = d->sceneLastCenter + touchPoint2.scenePos() - d->lastPoint2;
angle = d->pinchLastAngle;
}
d->id1 = touchPoint1.id();
if (angle > 180)
angle -= 360;
if (!d->inPinch || d->initPinch) {
if (d->touchPoints.count() >= 2) {
if (d->initPinch) {
if (!d->inPinch)
d->pinchStartDist = dist;
d->initPinch = false;
}
d->sceneStartCenter = sceneCenter;
d->sceneLastCenter = sceneCenter;
d->pinchStartCenter = mapFromScene(sceneCenter);
d->pinchStartAngle = angle;
d->pinchLastScale = 1.0;
d->pinchLastAngle = angle;
d->pinchRotation = 0.0;
d->lastPoint1 = p1;
d->lastPoint2 = p2;
if (qAbs(dist - d->pinchStartDist) >= dragThreshold ||
(pinch()->axis() != QQuickPinch::NoDrag &&
(qAbs(p1.x()-d->sceneStartPoint1.x()) >= dragThreshold
|| qAbs(p1.y()-d->sceneStartPoint1.y()) >= dragThreshold
|| qAbs(p2.x()-d->sceneStartPoint2.x()) >= dragThreshold
|| qAbs(p2.y()-d->sceneStartPoint2.y()) >= dragThreshold))) {
QQuickPinchEvent pe(d->pinchStartCenter, 1.0, angle, 0.0);
d->pinchStartDist = dist;
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(d->pinchStartCenter);
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(mapFromScene(d->lastPoint1));
pe.setPoint2(mapFromScene(d->lastPoint2));
pe.setPointCount(d->touchPoints.count());
emit pinchStarted(&pe);
if (pe.accepted()) {
d->inPinch = true;
d->stealMouse = true;
if (win && win->mouseGrabberItem() != this)
grabMouse();
setKeepMouseGrab(true);
grabTouchPoints(QVector<int>() << touchPoint1.id() << touchPoint2.id());
d->inPinch = true;
d->stealMouse = true;
if (d->pinch && d->pinch->target()) {
d->pinchStartPos = pinch()->target()->position();
d->pinchStartScale = d->pinch->target()->scale();
d->pinchStartRotation = d->pinch->target()->rotation();
d->pinch->setActive(true);
}
} else {
d->pinchRejected = true;
}
}
}
} else if (d->pinchStartDist > 0) {
qreal scale = dist ? dist / d->pinchStartDist : d->pinchLastScale;
qreal da = d->pinchLastAngle - angle;
if (da > 180)
da -= 360;
else if (da < -180)
da += 360;
d->pinchRotation += da;
QPointF pinchCenter = mapFromScene(sceneCenter);
QQuickPinchEvent pe(pinchCenter, scale, angle, d->pinchRotation);
pe.setStartCenter(d->pinchStartCenter);
pe.setPreviousCenter(mapFromScene(d->sceneLastCenter));
pe.setPreviousAngle(d->pinchLastAngle);
pe.setPreviousScale(d->pinchLastScale);
pe.setStartPoint1(mapFromScene(d->sceneStartPoint1));
pe.setStartPoint2(mapFromScene(d->sceneStartPoint2));
pe.setPoint1(touchPoint1.pos());
pe.setPoint2(touchPoint2.pos());
pe.setPointCount(d->touchPoints.count());
d->pinchLastScale = scale;
d->sceneLastCenter = sceneCenter;
d->pinchLastAngle = angle;
d->lastPoint1 = touchPoint1.scenePos();
d->lastPoint2 = touchPoint2.scenePos();
emit pinchUpdated(&pe);
if (d->pinch && d->pinch->target()) {
qreal s = d->pinchStartScale * scale;
s = qMin(qMax(pinch()->minimumScale(),s), pinch()->maximumScale());
pinch()->target()->setScale(s);
QPointF pos = sceneCenter - d->sceneStartCenter + d->pinchStartPos;
if (pinch()->axis() & QQuickPinch::XAxis) {
qreal x = pos.x();
if (x < pinch()->xmin())
x = pinch()->xmin();
else if (x > pinch()->xmax())
x = pinch()->xmax();
pinch()->target()->setX(x);
}
if (pinch()->axis() & QQuickPinch::YAxis) {
qreal y = pos.y();
if (y < pinch()->ymin())
y = pinch()->ymin();
else if (y > pinch()->ymax())
y = pinch()->ymax();
pinch()->target()->setY(y);
}
if (d->pinchStartRotation >= pinch()->minimumRotation()
&& d->pinchStartRotation <= pinch()->maximumRotation()) {
qreal r = d->pinchRotation + d->pinchStartRotation;
r = qMin(qMax(pinch()->minimumRotation(),r), pinch()->maximumRotation());
pinch()->target()->setRotation(r);
}
}
}
}
}
