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Bug #4621 » 0001-Eliminate-unnecessary-interactive-chart-updates.patch

Bruce Toll, 12/10/2015 06:04 PM

View differences:

src/Wt/Chart/WAxis
double mapToDevice(double value, int segment = 0) const;
long long getDateNumber(Wt::WDateTime dt) const;
void setZoomFromClient(double zoom);
void setPanFromClient(double pan);
friend class WCartesianChart;
friend class WCartesian3DChart;
src/Wt/Chart/WAxis.C
zoomDirty_ = true;
}
void WAxis::setZoomFromClient(double zoom)
{
zoom_ = zoom;
}
double WAxis::zoom() const
{
return zoom_;
......
void WAxis::setPan(double pan)
{
set(pan_, pan);
zoomDirty_ = true;
panDirty_ = true;
}
void WAxis::setPanFromClient(double pan)
{
pan_ = pan;
}
double WAxis::pan() const
src/Wt/Chart/WCartesianChart.C
if (!axis(XAxis).zoomDirty_) {
double z = xTransformHandle_.value().m11();
if (z != axis(XAxis).zoom()) axis(XAxis).setZoom(z);
if (z != axis(XAxis).zoom()) axis(XAxis).setZoomFromClient(z);
}
if (!axis(Y1Axis).zoomDirty_) {
double z = yTransformHandle_.value().m22();
if (z != axis(Y1Axis).zoom()) axis(Y1Axis).setZoom(z);
if (z != axis(Y1Axis).zoom()) axis(Y1Axis).setZoomFromClient(z);
}
WPointF devicePan =
WPointF(xTransformHandle_.value().dx() / xTransformHandle_.value().m11(),
......
axis(Y1Axis).mapFromDevice(-devicePan.y()));
if (!axis(XAxis).panDirty_) {
double x = modelPan.x();
if (x != axis(XAxis).pan()) axis(XAxis).setPan(x);
if (x != axis(XAxis).pan()) axis(XAxis).setPanFromClient(x);
}
if (!axis(Y1Axis).panDirty_) {
double y = modelPan.y();
if (y != axis(Y1Axis).pan()) axis(Y1Axis).setPan(y);
if (y != axis(Y1Axis).pan()) axis(Y1Axis).setPanFromClient(y);
}
}
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