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normalizer added

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This commit is contained in:
Sergey Solovyev 2011-09-19 17:24:55 +04:00
parent 66f6a823e4
commit 27c30bd966
1 changed files with 27 additions and 5 deletions
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32
src/main/java/org/solovyev/android/view/widgets/AbstractRangeSeekBar.java
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@ -15,8 +15,6 @@ import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable; import org.jetbrains.annotations.Nullable;
import org.solovyev.android.calculator.R; import org.solovyev.android.calculator.R;
import org.solovyev.common.utils.Converter; import org.solovyev.common.utils.Converter;
import org.solovyev.common.utils.Interval;
import org.solovyev.common.utils.IntervalImpl;
/** /**
* Widget that lets users select a minimum and maximum value on a given numerical range. * Widget that lets users select a minimum and maximum value on a given numerical range.
@ -135,7 +133,7 @@ public abstract class AbstractRangeSeekBar<T> extends ImageView {
* @return The currently selected min value. * @return The currently selected min value.
*/ */
public T getSelectedMinValue() { public T getSelectedMinValue() {
return normalizedToValue(normalizedMinValue); return denormalizeValue(normalizedMinValue);
} }
/** /**
@ -158,7 +156,7 @@ public abstract class AbstractRangeSeekBar<T> extends ImageView {
* @return The currently selected max value. * @return The currently selected max value.
*/ */
public T getSelectedMaxValue() { public T getSelectedMaxValue() {
return normalizedToValue(normalizedMaxValue); return denormalizeValue(normalizedMaxValue);
} }
/** /**
@ -331,7 +329,7 @@ public abstract class AbstractRangeSeekBar<T> extends ImageView {
* @return * @return
*/ */
@SuppressWarnings("unchecked") @SuppressWarnings("unchecked")
private T normalizedToValue(double normalized) { private T denormalizeValue(double normalized) {
return toTConverter.convert(dMinValue + normalized * (dMaxValue - dMinValue)); return toTConverter.convert(dMinValue + normalized * (dMaxValue - dMinValue));
} }
@ -391,4 +389,28 @@ public abstract class AbstractRangeSeekBar<T> extends ImageView {
private static enum Thumb { private static enum Thumb {
MIN, MAX MIN, MAX
} }
private class LinearNormalizer {
private final double minValue;
private final double maxValue;
private LinearNormalizer(double minValue, double maxValue) {
this.minValue = minValue;
this.maxValue = maxValue;
}
double normalize(double value){
if ((dMaxValue - dMinValue) != 0d) {
return (value - dMinValue) / (dMaxValue - dMinValue);
} else {
return 1d;
}
}
double denormalize(double value){
return dMinValue + value * (dMaxValue - dMinValue);
}
}
} }