graph_view.cpp
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#include "graph_view.h"
#include "model/model.h"
#include <apps/apps_container.h>
#include <poincare/context.h>
#include <assert.h>
using namespace Shared;
namespace Regression {
GraphView::GraphView(Store * store, CurveViewCursor * cursor, BannerView * bannerView, View * cursorView, Responder * controller) :
CurveView(store, cursor, bannerView, cursorView),
m_store(store),
m_xLabels{},
m_yLabels{},
m_controller(controller)
{
}
void GraphView::drawRect(KDContext * ctx, KDRect rect) const {
ctx->fillRect(rect, KDColorWhite);
drawGrid(ctx, rect);
drawAxes(ctx, rect, Axis::Horizontal);
drawAxes(ctx, rect, Axis::Vertical);
drawLabels(ctx, rect, Axis::Horizontal, true);
drawLabels(ctx, rect, Axis::Vertical, true);
for (int series = 0; series < Store::k_numberOfSeries; series++) {
if (!m_store->seriesIsEmpty(series)) {
KDColor color = Palette::DataColor[series];
Model * seriesModel = m_store->modelForSeries(series);
Poincare::Context * globContext = const_cast<AppsContainer *>(static_cast<const AppsContainer *>(m_controller->app()->container()))->globalContext();
drawCurve(ctx, rect, [](float abscissa, void * model, void * context) {
Model * regressionModel = static_cast<Model *>(model);
double * regressionCoefficients = static_cast<double *>(context);
return (float)regressionModel->evaluate(regressionCoefficients, abscissa);
},
seriesModel, m_store->coefficientsForSeries(series, globContext), color);
for (int index = 0; index < m_store->numberOfPairsOfSeries(series); index++) {
drawDot(ctx, rect, m_store->get(series, 0, index), m_store->get(series, 1, index), color);
}
drawDot(ctx, rect, m_store->meanOfColumn(series, 0), m_store->meanOfColumn(series, 1), color, true);
drawDot(ctx, rect, m_store->meanOfColumn(series, 0), m_store->meanOfColumn(series, 1), KDColorWhite);
}
}
}
char * GraphView::label(Axis axis, int index) const {
if (axis == Axis::Vertical) {
return (char *)m_yLabels[index];
}
return (char *)m_xLabels[index];
}
}