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| 1 | +package com.smarttoolfactory.composematerialslider.ui.theme.brush |
| 2 | + |
| 3 | +import androidx.compose.ui.geometry.Offset |
| 4 | +import androidx.compose.ui.graphics.Brush |
| 5 | +import androidx.compose.ui.graphics.Color |
| 6 | +import com.smarttoolfactory.composematerialslider.ui.theme.gradientColorScaleHSL |
| 7 | +import com.smarttoolfactory.composematerialslider.ui.theme.gradientColorScaleHSV |
| 8 | + |
| 9 | + |
| 10 | +/* |
| 11 | + HSV Gradients |
| 12 | + */ |
| 13 | +/** |
| 14 | + * Gradient for Slider for selecting Hue from HSV |
| 15 | + */ |
| 16 | +fun sliderHueHSVGradient( |
| 17 | + saturation: Float = 1f, |
| 18 | + value: Float = 1f, |
| 19 | + alpha: Float = 1f, |
| 20 | + start: Offset = Offset.Zero, |
| 21 | + end: Offset = Offset.Infinite |
| 22 | +): Brush { |
| 23 | + return Brush.linearGradient( |
| 24 | + colors = gradientColorScaleHSV( |
| 25 | + saturation = saturation, |
| 26 | + value = value, |
| 27 | + alpha = alpha, |
| 28 | + ), |
| 29 | + start = start, |
| 30 | + end = end |
| 31 | + ) |
| 32 | +} |
| 33 | + |
| 34 | +fun sliderSaturationHSVGradient( |
| 35 | + hue: Float, |
| 36 | + value: Float = 1f, |
| 37 | + alpha: Float = 1f, |
| 38 | + start: Offset = Offset.Zero, |
| 39 | + end: Offset = Offset.Infinite |
| 40 | +): Brush { |
| 41 | + return Brush.linearGradient( |
| 42 | + colors = listOf( |
| 43 | + Color.hsv(hue = hue, saturation = 0f, value = value, alpha = alpha), |
| 44 | + Color.hsv(hue = hue, saturation = 1f, value = value, alpha = alpha) |
| 45 | + ), |
| 46 | + start = start, |
| 47 | + end = end |
| 48 | + ) |
| 49 | +} |
| 50 | + |
| 51 | +fun sliderValueGradient( |
| 52 | + hue: Float, |
| 53 | + alpha: Float = 1f, |
| 54 | + start: Offset = Offset.Zero, |
| 55 | + end: Offset = Offset.Infinite |
| 56 | +): Brush { |
| 57 | + return Brush.linearGradient( |
| 58 | + colors = listOf( |
| 59 | + Color.hsv(hue = hue, saturation = 1f, value = 0f, alpha = alpha), |
| 60 | + Color.hsv(hue = hue, saturation = 1f, value = 1f, alpha = alpha) |
| 61 | + ), |
| 62 | + start = start, |
| 63 | + end = end |
| 64 | + ) |
| 65 | +} |
| 66 | + |
| 67 | +fun sliderAlphaHSVGradient( |
| 68 | + hue: Float = 0f, |
| 69 | + saturation: Float = 1f, |
| 70 | + value: Float = 1f, |
| 71 | + start: Offset = Offset.Zero, |
| 72 | + end: Offset = Offset.Infinite |
| 73 | +): Brush { |
| 74 | + return Brush.linearGradient( |
| 75 | + colors = listOf( |
| 76 | + Color.hsv(hue = hue, saturation = saturation, value = value, alpha = 0f), |
| 77 | + Color.hsv(hue = hue, saturation = saturation, value = value, alpha = 1f) |
| 78 | + ), |
| 79 | + start = start, |
| 80 | + end = end |
| 81 | + ) |
| 82 | +} |
| 83 | + |
| 84 | + |
| 85 | +/* |
| 86 | + HSL Gradients |
| 87 | + */ |
| 88 | +/** |
| 89 | + * Gradient for Slider for selecting Hue from HSL |
| 90 | + */ |
| 91 | +fun sliderHueHSLGradient( |
| 92 | + saturation: Float = 1f, |
| 93 | + lightness: Float = .5f, |
| 94 | + alpha: Float = 1f, |
| 95 | + start: Offset = Offset.Zero, |
| 96 | + end: Offset = Offset.Infinite |
| 97 | +): Brush { |
| 98 | + return Brush.linearGradient( |
| 99 | + colors = gradientColorScaleHSL( |
| 100 | + saturation = saturation, |
| 101 | + lightness = lightness, |
| 102 | + alpha = alpha, |
| 103 | + ), |
| 104 | + start = start, |
| 105 | + end = end |
| 106 | + ) |
| 107 | +} |
| 108 | + |
| 109 | +fun sliderSaturationHSLGradient( |
| 110 | + hue: Float, |
| 111 | + lightness: Float = .5f, |
| 112 | + alpha: Float = 1f, |
| 113 | + start: Offset = Offset.Zero, |
| 114 | + end: Offset = Offset.Infinite |
| 115 | +): Brush { |
| 116 | + return Brush.linearGradient( |
| 117 | + colors = listOf( |
| 118 | + Color.hsl(hue = hue, saturation = 0f, lightness = lightness, alpha = alpha), |
| 119 | + Color.hsl(hue = hue, saturation = 1f, lightness = lightness, alpha = alpha), |
| 120 | + ), |
| 121 | + start = start, |
| 122 | + end = end |
| 123 | + ) |
| 124 | +} |
| 125 | + |
| 126 | +fun sliderLightnessGradient( |
| 127 | + hue: Float, |
| 128 | + saturation: Float = 0f, |
| 129 | + alpha: Float = 1f, |
| 130 | + start: Offset = Offset.Zero, |
| 131 | + end: Offset = Offset.Infinite |
| 132 | +): Brush { |
| 133 | + return Brush.linearGradient( |
| 134 | + colors = listOf( |
| 135 | + Color.hsl(hue = hue, saturation = saturation, lightness = 0f, alpha = alpha), |
| 136 | + Color.hsl(hue = hue, saturation = saturation, lightness = .5f, alpha = alpha), |
| 137 | + Color.hsl(hue = hue, saturation = saturation, lightness = 1f, alpha = alpha) |
| 138 | + ), |
| 139 | + start = start, |
| 140 | + end = end |
| 141 | + ) |
| 142 | +} |
| 143 | + |
| 144 | +fun sliderAlphaHSLGradient( |
| 145 | + hue: Float, |
| 146 | + saturation: Float = 1f, |
| 147 | + lightness: Float = .5f, |
| 148 | + start: Offset = Offset.Zero, |
| 149 | + end: Offset = Offset.Infinite |
| 150 | +): Brush { |
| 151 | + return Brush.linearGradient( |
| 152 | + colors = listOf( |
| 153 | + Color.hsl(hue = hue, saturation = saturation, lightness = lightness, alpha = 0f), |
| 154 | + Color.hsl(hue = hue, saturation = saturation, lightness = lightness, alpha = 1f) |
| 155 | + ), |
| 156 | + start = start, |
| 157 | + end = end |
| 158 | + ) |
| 159 | +} |
| 160 | + |
| 161 | +/* |
| 162 | + RGB Gradients |
| 163 | + */ |
| 164 | +fun sliderRedGradient( |
| 165 | + alpha: Float = 1f, |
| 166 | + start: Offset = Offset.Zero, |
| 167 | + end: Offset = Offset.Infinite |
| 168 | +): Brush { |
| 169 | + return Brush.linearGradient( |
| 170 | + colors = listOf( |
| 171 | + Color.hsl(hue = 0f, saturation = 1f, lightness = 0f, alpha = alpha), |
| 172 | + Color.hsl(hue = 0f, saturation = 1f, lightness = .5f, alpha = alpha) |
| 173 | + ), |
| 174 | + start = start, |
| 175 | + end = end |
| 176 | + ) |
| 177 | +} |
| 178 | + |
| 179 | +fun sliderGreenGradient( |
| 180 | + alpha: Float = 1f, |
| 181 | + start: Offset = Offset.Zero, |
| 182 | + end: Offset = Offset.Infinite |
| 183 | +): Brush { |
| 184 | + return Brush.linearGradient( |
| 185 | + colors = listOf( |
| 186 | + Color.hsl(hue = 120f, saturation = 1f, lightness = 0f, alpha = alpha), |
| 187 | + Color.hsl(hue = 120f, saturation = 1f, lightness = .5f, alpha = alpha) |
| 188 | + ), |
| 189 | + start = start, |
| 190 | + end = end |
| 191 | + ) |
| 192 | +} |
| 193 | + |
| 194 | +fun sliderBlueGradient( |
| 195 | + alpha: Float = 1f, |
| 196 | + start: Offset = Offset.Zero, |
| 197 | + end: Offset = Offset.Infinite |
| 198 | +): Brush { |
| 199 | + return Brush.linearGradient( |
| 200 | + colors = listOf( |
| 201 | + Color.hsl(hue = 240f, saturation = 1f, lightness = 0f, alpha = alpha), |
| 202 | + Color.hsl(hue = 240f, saturation = 1f, lightness = .5f, alpha = alpha) |
| 203 | + ), |
| 204 | + start = start, |
| 205 | + end = end |
| 206 | + ) |
| 207 | +} |
| 208 | + |
| 209 | +fun sliderAlphaRGBGradient( |
| 210 | + red: Float, |
| 211 | + green: Float, |
| 212 | + blue: Float, |
| 213 | + start: Offset = Offset.Zero, |
| 214 | + end: Offset = Offset.Infinite |
| 215 | +): Brush { |
| 216 | + return Brush.linearGradient( |
| 217 | + colors = listOf( |
| 218 | + Color(red,green, blue,0f), |
| 219 | + Color(red,green, blue,1f) |
| 220 | + ), |
| 221 | + start = start, |
| 222 | + end = end |
| 223 | + ) |
| 224 | +} |
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