HistoryChart: make toggling faster

This commit is contained in:
2016-07-17 09:32:21 -04:00
parent fa9f90a09e
commit 8cde0d6aca

View File

@@ -32,6 +32,8 @@ import org.isoron.uhabits.utils.*;
import java.text.*;
import java.util.*;
import static org.isoron.uhabits.models.Checkmark.*;
public class HistoryChart extends ScrollableChart
{
private int[] checkmarks;
@@ -118,12 +120,15 @@ public class HistoryChart extends ScrollableChart
final Long timestamp = positionToTimestamp(x, y);
if (timestamp == null) return false;
controller.onToggleCheckmark(timestamp);
int offset = timestampToOffset(timestamp);
boolean isChecked = checkmarks[offset] == CHECKED_EXPLICITLY;
checkmarks[offset] = (isChecked ? UNCHECKED : CHECKED_EXPLICITLY);
controller.onToggleCheckmark(timestamp);
postInvalidate();
return true;
}
public void populateWithRandomData()
{
Random random = new Random();
@@ -407,6 +412,14 @@ public class HistoryChart extends ScrollableChart
return date.getTimeInMillis();
}
private int timestampToOffset(Long timestamp)
{
Long day = DateUtils.millisecondsInOneDay;
Long today = DateUtils.getStartOfToday();
return (int) ((today - timestamp) / day);
}
private void updateDate()
{
baseDate = DateUtils.getStartOfTodayCalendar();