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add drum rack layout #44

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add drum rack layout #44

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23 changes: 23 additions & 0 deletions lib/services/layout/pad_layouts.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ enum Layout {
scaleNotesCustom('In Key', custom: true),
sequential('Chromatic - Sequential', chromatic: true),
scaleNotesOnly('In Key - Sequential'),
drumRack('Drum Rack'),

progrChange('Program Changes', chromatic: true),

Expand Down Expand Up @@ -54,6 +55,9 @@ enum Layout {
return GridChromaticByCustomIntervals(settings);
case Layout.sequential:
return GridChromaticByRowInterval(settings, rowInterval: width);

case Layout.drumRack:
return GridChromaticDrumRack(settings);

case Layout.scaleNotesCustom:
return GridInScaleCustom(settings);
Expand Down Expand Up @@ -136,6 +140,25 @@ class GridChromaticByRowInterval extends Grid {
}
}

//// A vertical chromatic drum rack Grid
class GridChromaticDrumRack extends Grid {
GridChromaticDrumRack(super.settings);

@override
List<CustomPad> get list {
final List<CustomPad> grid = [];
for (int row = 0; row < settings.height; row++) {
for (int col = 0; col < settings.width; col++) {
int numVerticalRacks = 1 + (settings.height % 4);
int rackOffset = ((col ~/ 4) * 16 * numVerticalRacks);
int rowOffset = (col % 4) + row * 4;
grid.add(CustomPad(settings.baseNote + rackOffset + rowOffset));
}
}
return grid;
}
}

/// Grid that has custom set semitone intervals on the x and y axis
class GridChromaticByCustomIntervals extends Grid {
GridChromaticByCustomIntervals(super.settings);
Expand Down