Method setStatesWhenAdd

Source/Panels/SpectrogramPanel/Multiband.cpp:264–314

}

void Multiband::setStatesWhenAdd(int insertionIndex)
{
    // 1. Update the visual focus.
    // If a band is inserted at or before the current focus,
    // the focus index must be shifted to the right.
    if (insertionIndex <= focusIndex)
    {
        focusIndex += 1;
    }

    // 2. Determine if the user clicked on the left or right side of the band being split.
    // We use the center point between the enable and solo buttons as the reference.
    float bandCenterline = (bandUIs[insertionIndex].enableButton->getRight() + bandUIs[insertionIndex].soloButton->getX()) / 2.0f;
    bool clickedOnTheLeft = getMouseXYRelative().getX() < bandCenterline;

    // 3. Make space by shifting all bands from the insertion point onwards one step to the right.
    // We loop backwards from the end to avoid overwriting the data we need to copy.
    // After this loop, the settings of the original band at `insertionIndex` are now temporarily stored at `insertionIndex + 1`.
    for (int i = 2; i >= insertionIndex; --i)
    {
        copyBandSettings(i + 1, i);
    }
    // Also shift LFO targets for the same range of bands
    processor.shiftLfoModulationTargets(insertionIndex, 2, 1);

    // 4. Place the old and new bands correctly based on the exact user-defined logic.
    if (clickedOnTheLeft)
    {
        // USER ACTION: Clicked on the LEFT side of the band.
        // EXPECTED RESULT: The NEW band appears on the LEFT, OLD band is shifted to the RIGHT.

        // The "Make Space" step has already moved the OLD band's settings to insertionIndex + 1. This is perfect.
        // We just need to reset the band at the original insertionIndex to its default state, creating the NEW band on the LEFT.
        resetBandToDefault(insertionIndex);
        processor.clearLfoModulationForBand(insertionIndex); // Clear LFOs for the new default band
    }
    else // Clicked on the RIGHT side
    {
        // USER ACTION: Clicked on the RIGHT side of the band.
        // EXPECTED RESULT: The OLD band stays on the LEFT, NEW band appears on the RIGHT.

        // The "Make Space" step moved the OLD settings to insertionIndex + 1. We need them back.
        // So, we copy the temporarily stored settings from (insertionIndex + 1) back to the original position.
        copyBandSettings(insertionIndex, insertionIndex + 1);
        processor.shiftLfoModulationTargets(insertionIndex + 1, insertionIndex + 1, -1);

        // Now, we reset the band to the right to be a new, default band.
        resetBandToDefault(insertionIndex + 1);
        processor.clearLfoModulationForBand(insertionIndex + 1); // Clear LFOs for the new default band
    }
}

void Multiband::setStatesWhenDelete(int deletedIndex)
{