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59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
#include "graph_view.h"
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#include <assert.h>
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#include <math.h>
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namespace Regression {
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GraphView::GraphView(Data * data) :
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CurveViewWithBannerAndCursor(data, 0.2f, 0.2f, 0.4f, 0.2f),
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m_data(data),
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m_bannerView(BannerView(data))
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{
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}
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void GraphView::reloadSelection() {
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float pixelXSelection = roundf(floatToPixel(Axis::Horizontal, m_data->xCursorPosition()));
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float pixelYSelection = roundf(floatToPixel(Axis::Vertical, m_data->yCursorPosition()));
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KDRect dirtyZone(KDRect(pixelXSelection - k_cursorSize/2, pixelYSelection - k_cursorSize/2, k_cursorSize, k_cursorSize));
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markRectAsDirty(dirtyZone);
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layoutSubviews();
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m_bannerView.reload();
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}
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void GraphView::reload() {
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markRectAsDirty(bounds());
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computeLabels(Axis::Horizontal);
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computeLabels(Axis::Vertical);
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layoutSubviews();
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m_bannerView.reload();
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}
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void GraphView::drawRect(KDContext * ctx, KDRect rect) const {
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ctx->fillRect(rect, KDColorWhite);
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drawAxes(ctx, rect, Axis::Horizontal);
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drawAxes(ctx, rect, Axis::Vertical);
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drawLabels(ctx, rect, Axis::Horizontal, true);
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drawLabels(ctx, rect, Axis::Vertical, true);
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drawCurve(ctx, rect, nullptr, KDColorRed);
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for (int index = 0; index < m_data->numberOfPairs(); index++) {
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drawDot(ctx, rect, m_data->xValueAtIndex(index), m_data->yValueAtIndex(index), KDColorBlue, KDSize(k_dotSize, k_dotSize));
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}
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}
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char * GraphView::label(Axis axis, int index) const {
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if (axis == Axis::Vertical) {
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return (char *)m_yLabels[index];
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}
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return (char *)m_xLabels[index];
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}
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View * GraphView::bannerView() {
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return &m_bannerView;
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}
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float GraphView::evaluateModelWithParameter(Model * curve, float t) const {
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return m_data->yValueForXValue(t);
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}
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}
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