mirror of
https://github.com/UpsilonNumworks/Upsilon.git
synced 2026-01-19 00:37:25 +01:00
65 lines
2.3 KiB
C++
65 lines
2.3 KiB
C++
#include "histogram_view.h"
|
|
#include <assert.h>
|
|
#include <cmath>
|
|
|
|
using namespace Shared;
|
|
|
|
namespace Statistics {
|
|
|
|
HistogramView::HistogramView(Store * store, BannerView * bannerView) :
|
|
CurveView(store, nullptr, bannerView, nullptr),
|
|
m_store(store),
|
|
m_labels{},
|
|
m_highlightedBarStart(NAN),
|
|
m_highlightedBarEnd(NAN)
|
|
{
|
|
}
|
|
|
|
void HistogramView::reload() {
|
|
CurveView::reload();
|
|
float pixelLowerBound = floatToPixel(Axis::Horizontal, m_highlightedBarStart)-2;
|
|
float pixelUpperBound = floatToPixel(Axis::Horizontal, m_highlightedBarEnd)+2;
|
|
/* We deliberately do not mark as dirty the frame of the banner view to avoid
|
|
*unpleasant blinking of the drawing of the banner view. */
|
|
KDRect dirtyZone(KDRect(pixelLowerBound, 0, pixelUpperBound-pixelLowerBound,
|
|
bounds().height()-m_bannerView->bounds().height()));
|
|
markRectAsDirty(dirtyZone);
|
|
}
|
|
|
|
void HistogramView::drawRect(KDContext * ctx, KDRect rect) const {
|
|
ctx->fillRect(rect, KDColorWhite);
|
|
drawAxes(ctx, rect, Axis::Horizontal);
|
|
drawLabels(ctx, rect, Axis::Horizontal, false);
|
|
/* We memoize the total size to avoid recomputing it in double precision at
|
|
* every call to EvaluateHistogramAtAbscissa() */
|
|
float totalSize = m_store->sumOfColumn(0, 1); // TODO Draw all the histograms
|
|
float context[] = {totalSize, 0};
|
|
if (isMainViewSelected()) {
|
|
drawHistogram(ctx, rect, EvaluateHistogramAtAbscissa, m_store, context, m_store->firstDrawnBarAbscissa(), m_store->barWidth(), true, Palette::Select, Palette::YellowDark, m_highlightedBarStart, m_highlightedBarEnd);
|
|
} else {
|
|
drawHistogram(ctx, rect, EvaluateHistogramAtAbscissa, m_store, context, m_store->firstDrawnBarAbscissa(), m_store->barWidth(), true, Palette::GreyMiddle, Palette::YellowDark);
|
|
}
|
|
}
|
|
|
|
void HistogramView::setHighlight(float start, float end) {
|
|
if (m_highlightedBarStart != start || m_highlightedBarEnd != end) {
|
|
reload();
|
|
m_highlightedBarStart = start;
|
|
m_highlightedBarEnd = end;
|
|
reload();
|
|
}
|
|
}
|
|
|
|
char * HistogramView::label(Axis axis, int index) const {
|
|
return axis == Axis::Vertical ? nullptr : (char *)m_labels[index];
|
|
}
|
|
|
|
float HistogramView::EvaluateHistogramAtAbscissa(float abscissa, void * model, void * context) {
|
|
Store * store = (Store *)model;
|
|
float totalSize = ((float *)context)[0];
|
|
int series = ((float *)context)[1];
|
|
return store->heightOfBarAtValue(series, abscissa)/(totalSize);
|
|
}
|
|
|
|
}
|