mirror of
https://github.com/GoldenCheetah/GoldenCheetah.git
synced 2026-02-16 01:19:57 +00:00
2962fce0b7
Introduce a span-slider on the normal Ride Plot chart to enable users to select a range to plot and scroll left and right. The zoom to interval function now uses this slider rather than setting a zoom range. Tooltips are now displayed on the normal and stacked views to assist in reviewing specific data points. Old style zooming still works as expected, but scrolling at a zoom level is not yet implemented. The qxt widget 'QxtSpanSlider' has been placed in the top level directory (GoldenCheetah/qxt) alongside the qwt widgets to avoid adding another dependency. A number of optimizations have also been introduced to speed up plotting in general. A new color setting for the thumbnail plot has also been introduced. Refresh of the plot when data is changed in the editor has been fixed. The zoom scale up/down widgets are also disabled when in normal mode to avoid the bug highlighted by Robert Carlsen. Fixes #122.
112 lines
2.6 KiB
C++
112 lines
2.6 KiB
C++
// code borrowed from event_filter qwt examples
|
|
// and modified for GC LTM purposes
|
|
|
|
#include <qapplication.h>
|
|
#include <qevent.h>
|
|
#include <qwhatsthis.h>
|
|
#include <qpainter.h>
|
|
#include <qwt_plot.h>
|
|
#include <qwt_symbol.h>
|
|
#include <qwt_scale_map.h>
|
|
#include <qwt_plot_canvas.h>
|
|
#include <qwt_plot_curve.h>
|
|
#include "LTMCanvasPicker.h"
|
|
|
|
#include <QDebug>
|
|
|
|
LTMCanvasPicker::LTMCanvasPicker(QwtPlot *plot):
|
|
QObject(plot),
|
|
d_selectedCurve(NULL),
|
|
d_selectedPoint(-1)
|
|
{
|
|
QwtPlotCanvas *canvas = plot->canvas();
|
|
|
|
canvas->installEventFilter(this);
|
|
|
|
// We want the focus, but no focus rect. The
|
|
canvas->setFocusPolicy(Qt::StrongFocus);
|
|
canvas->setFocusIndicator(QwtPlotCanvas::ItemFocusIndicator);
|
|
canvas->setFocus();
|
|
}
|
|
|
|
bool LTMCanvasPicker::event(QEvent *e)
|
|
{
|
|
if ( e->type() == QEvent::User )
|
|
{
|
|
//showCursor(true);
|
|
return true;
|
|
}
|
|
return QObject::event(e);
|
|
}
|
|
|
|
bool LTMCanvasPicker::eventFilter(QObject *object, QEvent *e)
|
|
{
|
|
if ( object != (QObject *)plot()->canvas() )
|
|
return false;
|
|
|
|
switch(e->type())
|
|
{
|
|
default:
|
|
QApplication::postEvent(this, new QEvent(QEvent::User));
|
|
break;
|
|
case QEvent::MouseButtonPress:
|
|
select(((QMouseEvent *)e)->pos(), true);
|
|
break;
|
|
case QEvent::MouseMove:
|
|
select(((QMouseEvent *)e)->pos(), false);
|
|
break;
|
|
}
|
|
return QObject::eventFilter(object, e);
|
|
}
|
|
|
|
// Select the point at a position. If there is no point
|
|
// deselect the selected point
|
|
|
|
void LTMCanvasPicker::select(const QPoint &pos, bool clicked)
|
|
{
|
|
QwtPlotCurve *curve = NULL;
|
|
double dist = 10e10;
|
|
int index = -1;
|
|
|
|
const QwtPlotItemList& itmList = plot()->itemList();
|
|
for ( QwtPlotItemIterator it = itmList.begin();
|
|
it != itmList.end(); ++it )
|
|
{
|
|
if ( (*it)->rtti() == QwtPlotItem::Rtti_PlotCurve )
|
|
{
|
|
QwtPlotCurve *c = (QwtPlotCurve*)(*it);
|
|
|
|
double d = -1;
|
|
int idx = c->closestPoint(pos, &d);
|
|
if ( d != -1 && d < dist )
|
|
{
|
|
curve = c;
|
|
index = idx;
|
|
dist = d;
|
|
}
|
|
}
|
|
}
|
|
|
|
d_selectedCurve = NULL;
|
|
d_selectedPoint = -1;
|
|
|
|
if ( curve && dist < 10 ) // 10 pixels tolerance
|
|
{
|
|
// picked one
|
|
d_selectedCurve = curve;
|
|
d_selectedPoint = index;
|
|
|
|
if (clicked)
|
|
pointClicked(curve, index); // emit
|
|
else
|
|
pointHover(curve, index); // emit
|
|
} else {
|
|
// didn't
|
|
if (clicked)
|
|
pointClicked(NULL, -1); // emit
|
|
else
|
|
pointHover(NULL, -1); // emit
|
|
|
|
}
|
|
}
|