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numChannels() should return the number of used channels #336

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Merged
merged 1 commit into from
Nov 21, 2025
Merged

numChannels() should return the number of used channels #336

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6 changes: 4 additions & 2 deletions src/main/java/org/micromanager/lightsheetmanager/api/internal/DefaultChannelSettings.java
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Original file line number Diff line number Diff line change
Expand Up @@ -66,14 +66,16 @@ public Builder copyBuilder() {
}

/**
* Returns the number of channels for the selected channel group,
* Returns the number of used channels for the selected channel group,
* and returns 0 if the channel group does not exist.
*
* @return the number of channels in the channel group
*/
@Override
public int numChannels() {
return groups_.getOrDefault(channelGroup_, EMPTY_CHANNELS).length;
return Arrays.stream(groups_.getOrDefault(channelGroup_, EMPTY_CHANNELS))
.filter(ChannelSpec::useChannel)
.toArray(ChannelSpec[]::new).length;
}

/**
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