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add chart area space by putting x-axis label below the axis

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Fixes #1820
This commit is contained in:
Peter Hercek
2024-01-10 14:14:13 +01:00
committed by Dennis Guse
parent fa69320aee
commit f3f9ad2154
1 changed files with 20 additions and 10 deletions
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src/main/java/de/dennisguse/opentracks/chart/ChartView.java
+20 -10
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@@ -631,14 +631,20 @@ public class ChartView extends View {
synchronized (markers) {
for (Marker marker : markers) {
double xValue = getMarkerXValue(marker);
if (xValue > maxX) {
continue;
double markerIconSizeInXaxisUnits = maxX*markerWidth/effectiveWidth / zoomLevel;
if (xValue > maxX + markerIconSizeInXaxisUnits * (1-MARKER_X_ANCHOR)) {
continue; // there is no chance that this marker will be visible
}
canvas.save();
float x = getX(getMarkerXValue(marker));
canvas.drawLine(x, topBorder + spacer + markerHeight / 2, x, topBorder + effectiveHeight, markerPaint);
canvas.translate(x - (markerWidth * MARKER_X_ANCHOR), topBorder + spacer);
// if marker is not near the end of the track then draw it normally
if (xValue < maxX - markerIconSizeInXaxisUnits*(1-MARKER_X_ANCHOR)) {
canvas.translate(x - (markerWidth * MARKER_X_ANCHOR), topBorder + spacer);
} else { // marker at the end needs to be drawn mirrored so that it is more visible
canvas.translate(x + (markerWidth * MARKER_X_ANCHOR), topBorder + spacer);
canvas.scale(-1, 1);
}
markerPin.draw(canvas);
canvas.restore();
}
@@ -735,13 +741,13 @@ public class ChartView extends View {
String label = getXAxisLabel();
Rect rect = getRect(axisPaint, label);
int yOffset = rect.height() / 2;
canvas.drawText(label, x + effectiveWidth + spacer, y + yOffset, axisPaint);
canvas.drawText(label, x + effectiveWidth - rect.width(), y + 3 * yOffset, axisPaint);
double interval = getXAxisInterval();
NumberFormat numberFormat = interval < 1 ? X_FRACTION_FORMAT : X_NUMBER_FORMAT;
for (double markerPosition : getXAxisMarkerPositions(interval)) {
drawXAxisMarker(canvas, markerPosition, numberFormat, spacer + yOffset);
drawXAxisMarker(canvas, markerPosition, numberFormat, spacer + rect.width(), spacer + yOffset);
}
}
@@ -764,12 +770,16 @@ public class ChartView extends View {
* @param canvas canvas
* @param value value
* @param numberFormat the number format
* @param spacing the spacing between x axis and marker
* @param xRightSpace the space taken up by the x axis label
* @param yBottomSpace the space between x axis and marker
*/
private void drawXAxisMarker(Canvas canvas, double value, NumberFormat numberFormat, int spacing) {
private void drawXAxisMarker(Canvas canvas, double value, NumberFormat numberFormat, int xRightSpace, int yBottomSpace) {
String marker = chartByDistance ? numberFormat.format(value) : StringUtils.formatElapsedTime((Duration.ofMillis((long) value)));
Rect rect = getRect(xAxisMarkerPaint, marker);
canvas.drawText(marker, getX(value), topBorder + effectiveHeight + spacing + rect.height(), xAxisMarkerPaint);
int markerXPos = getX(value);
int markerEndXPos = markerXPos + rect.width()/2;
if (markerEndXPos > getScrollX() + leftBorder + effectiveWidth - xRightSpace) return;
canvas.drawText(marker, markerXPos, topBorder + effectiveHeight + yBottomSpace + rect.height(), xAxisMarkerPaint);
}
private double getXAxisInterval() {
@@ -952,7 +962,7 @@ public class ChartView extends View {
Rect xAxisLabelRect = getRect(axisPaint, getXAxisLabel());
// border + x axis marker + spacer + .5 x axis label
bottomBorder = (int) (density * BORDER + getRect(xAxisMarkerPaint, "1").height() + spacer + (xAxisLabelRect.height() / 2));
rightBorder = (int) (density * BORDER + xAxisLabelRect.width() + spacer);
rightBorder = (int) (density * BORDER + spacer);
updateEffectiveDimensions();
}