87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
#ifndef TEMPERATURE_CHART_H
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#define TEMPERATURE_CHART_H
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#include <gtk/gtk.h>
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#include <cairo.h>
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#include <string>
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#include <vector>
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#include <map>
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#include <cstdint>
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struct DataPoint {
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double temperature;
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int64_t timestamp;
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};
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struct SeriesData {
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std::vector<DataPoint> points;
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GdkRGBA color;
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std::string id; // Unique internal ID (device + sensor)
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std::string name; // User-friendly display name
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};
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class TemperatureChart {
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public:
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TemperatureChart();
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~TemperatureChart();
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GtkWidget* getWidget() const { return drawingArea; }
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bool addTemperatureData(const std::string &device, const std::string &sensor,
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double temperature, int64_t timestamp);
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void clear();
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void draw();
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// Get list of series with their colors
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std::vector<std::pair<std::string, GdkRGBA>> getSeriesColors() const;
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void setSeriesColor(const std::string &seriesName, const GdkRGBA &color);
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// Name management
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std::string getSeriesName(const std::string &seriesId) const;
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void setSeriesName(const std::string &seriesId, const std::string &name);
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void drawChart(GtkDrawingArea *area, cairo_t *cr, int width, int height);
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private:
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void setupColors();
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GdkRGBA getColorForSeries(const std::string &seriesKey);
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void redraw();
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void updateThemeColors();
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static void onLeave(GtkEventControllerMotion *motion, gpointer userData);
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struct NearestPoint {
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bool found;
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double temperature;
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int64_t timestamp;
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std::string seriesName;
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double distance;
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};
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NearestPoint findNearestDataPoint(double mouseX, double mouseY, int width, int height);
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void showTooltip(double x, double y, const NearestPoint &point);
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void hideTooltip();
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GtkWidget *drawingArea;
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GtkWidget *tooltipWindow;
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GtkWidget *tooltipLabel;
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std::map<std::string, SeriesData> seriesMap;
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std::map<std::string, GdkRGBA> colorMap;
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int maxDataPoints;
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guint tickHandler;
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double lastMouseX, lastMouseY;
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// Cairo drawing state
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double minTemp, maxTemp;
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int64_t minTime, maxTime;
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static constexpr int MAX_TIME_MS = 600000; // 10 minutes in milliseconds
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static constexpr double MIN_TEMP = 10.0;
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static constexpr double MAX_TEMP = 110.0;
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// Theme colors
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GdkRGBA bgColor, textColor, gridColor, axisColor;
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};
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#endif // TEMPERATURE_CHART_H
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