void ImageMarker::updateBoundingRect() {
if (!plot()) return;
setXValue(plot()->invTransform(xAxis(), d_pos.x()));
d_x_right = plot()->invTransform(xAxis(), d_pos.x() + d_size.width());
setYValue(plot()->invTransform(yAxis(), d_pos.y()));
d_y_bottom = plot()->invTransform(yAxis(), d_pos.y() + d_size.height());
}
void LegendMarker::setOrigin( const QPoint & p )
{
d_pos = p;
const QwtScaleMap &xMap = d_plot->canvasMap(xAxis());
const QwtScaleMap &yMap = d_plot->canvasMap(yAxis());
setXValue (xMap.invTransform(p.x()));
setYValue (yMap.invTransform(p.y()));
}
void ImageMarker::setOrigin(const QPoint &p) {
d_pos = p;
if (!plot()) return;
setXValue(plot()->invTransform(xAxis(), p.x()));
setYValue(plot()->invTransform(yAxis(), p.y()));
d_size = size();
updateBoundingRect();
}
void LegendMarker::updateOrigin()
{
if (!d_plot)
return;
const QwtScaleMap &xMap = d_plot->canvasMap(xAxis());
const QwtScaleMap &yMap = d_plot->canvasMap(yAxis());
setXValue (xMap.invTransform(d_pos.x()));
setYValue (yMap.invTransform(d_pos.y()));
}
void LegendMarker::setOriginCoord(double x, double y)
{
if (xValue() == x && yValue() == y)
return;
setXValue(x);
setYValue(y);
const QwtScaleMap &xMap = d_plot->canvasMap(xAxis());
const QwtScaleMap &yMap = d_plot->canvasMap(yAxis());
d_pos = QPoint(xMap.transform(x), yMap.transform(y));
}
void ImageMarker::setBoundingRect(double left, double top, double right, double bottom)
{
if (xValue() == left && yValue() == top && d_x_right == right && d_y_bottom == bottom)
return;
setXValue(left);
setYValue(top);
d_x_right = right;
d_y_bottom = bottom;
if (!plot())
return;
plot()->updateLayout();
QRect r = this->rect();
d_pos = r.topLeft();
d_size = r.size();
}
void LegendMarker::updateOrigin()
{
if (!d_plot)
return;
const QwtScaleMap &xMap = d_plot->canvasMap(xAxis());
const QwtScaleMap &yMap = d_plot->canvasMap(yAxis());
const QwtScaleDiv *xScDiv = d_plot->axisScaleDiv (xAxis());
double xVal = xMap.invTransform(d_pos.x());
if (!xScDiv->contains(xVal))
return;
const QwtScaleDiv *yScDiv = d_plot->axisScaleDiv (yAxis());
double yVal = yMap.invTransform(d_pos.y());
if (!yScDiv->contains(yVal))
return;
setXValue (xVal);
setYValue (yVal);
}
bool ArrowMarker::eventFilter(QObject *, QEvent *e)
{
switch(e->type()) {
case QEvent::MouseButtonPress:
{
const QMouseEvent *me = (const QMouseEvent *)e;
if (me->button() != Qt::LeftButton)
return false;
QRect handler = QRect (QPoint(0,0), QSize(10, 10));
handler.moveCenter (startPoint());
if (handler.contains(me->pos()))
{
QApplication::setOverrideCursor(QCursor(Qt::SizeAllCursor), true);
d_op = MoveStart;
return true;
}
handler.moveCenter (endPoint());
if (handler.contains(me->pos()))
{
QApplication::setOverrideCursor(QCursor(Qt::SizeAllCursor), true);
d_op = MoveEnd;
return true;
}
int d = qRound(width() + (int)floor(headLength()*tan(M_PI*headAngle()/180.0) + 0.5));
if (dist(me->pos().x(),me->pos().y()) <= d)
{
QApplication::setOverrideCursor(QCursor(Qt::SizeAllCursor), true);
d_op = MoveBoth;
d_op_startat = me->pos()-startPoint();
return true;
}
return false;
}
case QEvent::MouseMove:
{
const QMouseEvent *me = (const QMouseEvent *)e;
switch(d_op) {
case MoveStart:
setStartPoint(me->pos());
plot()->replot();
return true;
case MoveEnd:
setEndPoint(me->pos());
plot()->replot();
return true;
case MoveBoth:
setEndPoint(endPoint()+me->pos()-d_op_startat-startPoint());
setStartPoint(me->pos()-d_op_startat);
plot()->replot();
return true;
default:
return false;
}
}
case QEvent::MouseButtonRelease:
{
const QMouseEvent *me = (const QMouseEvent *)e;
switch(d_op) {
case MoveStart:
setStartPoint(me->pos());
plot()->replot();
d_op = None;
QApplication::restoreOverrideCursor();
return true;
case MoveEnd:
setEndPoint(me->pos());
plot()->replot();
d_op = None;
QApplication::restoreOverrideCursor();
return true;
case MoveBoth:
setXValue(plot()->invTransform(xAxis(), me->pos().x()-d_op_startat.x()));
setYValue(plot()->invTransform(yAxis(), me->pos().y()-d_op_startat.y()));
plot()->replot();
d_op = None;
QApplication::restoreOverrideCursor();
return true;
default:
d_op = None;
QApplication::restoreOverrideCursor();
return false;
}
}
case QEvent::MouseButtonDblClick:
{
const QMouseEvent *me = (const QMouseEvent *)e;
if (me->button() != Qt::LeftButton)
return false;
LineDialog *ld = new LineDialog(this, plot()->window());
ld->exec();
return true;
}
default:
return false;
}
}
