fromList static method
FlexTonalPalette
fromList(
- List<
int> colors, [ - FlexPaletteType paletteType = FlexPaletteType.common
Create colors from a fixed-size list of ARGB color ints.
Inverse of FlexTonalPalette.asList.
Implementation
static FlexTonalPalette fromList(
List<int> colors, [
FlexPaletteType paletteType = FlexPaletteType.common,
]) {
assert(
(colors.length == commonSize &&
paletteType == FlexPaletteType.common) ||
(colors.length == extendedSize &&
paletteType == FlexPaletteType.extended),
'Length must be $commonSize when using FlexPaletteType.common OR '
'length must be $extendedSize when using FlexPaletteType.extended.');
Map<int, int> cache;
cache = <int, int>{};
switch (paletteType) {
case FlexPaletteType.common:
commonTones.asMap().forEach(
(int index, int toneValue) => cache[toneValue] = colors[index]);
case FlexPaletteType.extended:
extendedTones.asMap().forEach(
(int index, int toneValue) => cache[toneValue] = colors[index]);
}
return FlexTonalPalette._fromCache(cache, paletteType);
}