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Bugfix: ChartView needs data.

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Fixes #1086.
This commit is contained in:
Dennis Guse
2022-01-11 22:44:14 +01:00
parent 11de7d5868
commit bc1edec372
1 changed files with 11 additions and 10 deletions
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src/main/java/de/dennisguse/opentracks/chart/ChartView.java
+11 -10
View File
@@ -41,6 +41,7 @@ import androidx.core.view.GestureDetectorCompat;
import java.text.NumberFormat;
import java.time.Duration;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import de.dennisguse.opentracks.MarkerDetailActivity;
@@ -82,12 +83,12 @@ public class ChartView extends View {
X_FRACTION_FORMAT.setMinimumFractionDigits(1);
}
private final List<ChartValueSeries> seriesList = new ArrayList<>();
private final List<ChartValueSeries> seriesList = new LinkedList<>();
private final ChartValueSeries speedSeries;
private final ChartValueSeries paceSeries;
private final List<ChartPoint> chartPoints = new ArrayList<>();
private final List<Marker> markers = new ArrayList<>();
private final LinkedList<ChartPoint> chartPoints = new LinkedList<>();
private final List<Marker> markers = new LinkedList<>();
private final ExtremityMonitor xExtremityMonitor = new ExtremityMonitor();
private final int backgroundColor;
private final Paint axisPaint;
@@ -834,22 +835,22 @@ public class ChartView extends View {
return paint.measureText(marker);
}
/**
* Draws the current pointer.
*
* @param canvas the canvas
*/
private void drawPointer(Canvas canvas) {
if (chartPoints.isEmpty()) {
return;
}
ChartPoint last = chartPoints.getLast();
ChartValueSeries firstChartValueSeries = null;
for (ChartValueSeries chartValueSeries : seriesList) {
if (chartValueSeries.isEnabled() && chartValueSeries.hasData()) {
if (chartValueSeries.isEnabled() && chartValueSeries.hasData() && chartValueSeries.isChartPointValid(last)) {
firstChartValueSeries = chartValueSeries;
break;
}
}
if (firstChartValueSeries != null && chartPoints.size() > 0) {
int dx = getX(maxX) - pointer.getIntrinsicWidth() / 2;
double value = firstChartValueSeries.extractDataFromChartPoint(chartPoints.get(chartPoints.size() - 1));
double value = firstChartValueSeries.extractDataFromChartPoint(last);
int dy = getY(firstChartValueSeries, value) - pointer.getIntrinsicHeight();
canvas.translate(dx, dy);
pointer.draw(canvas);