| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 package org.chromium.ui; | |
| 6 | |
| 7 import android.content.Context; | |
| 8 import android.graphics.Color; | |
| 9 import android.util.AttributeSet; | |
| 10 import android.view.LayoutInflater; | |
| 11 import android.view.View; | |
| 12 import android.widget.LinearLayout; | |
| 13 import android.widget.SeekBar; | |
| 14 import android.widget.SeekBar.OnSeekBarChangeListener; | |
| 15 | |
| 16 /** | |
| 17 * Represents a more advanced way for the user to choose a color, based on selec
ting each of | |
| 18 * the Hue, Saturation and Value attributes. | |
| 19 */ | |
| 20 public class ColorPickerAdvanced extends LinearLayout implements OnSeekBarChange
Listener { | |
| 21 private static final int HUE_SEEK_BAR_MAX = 360; | |
| 22 | |
| 23 private static final int HUE_COLOR_COUNT = 7; | |
| 24 | |
| 25 private static final int SATURATION_SEEK_BAR_MAX = 100; | |
| 26 | |
| 27 private static final int SATURATION_COLOR_COUNT = 2; | |
| 28 | |
| 29 private static final int VALUE_SEEK_BAR_MAX = 100; | |
| 30 | |
| 31 private static final int VALUE_COLOR_COUNT = 2; | |
| 32 | |
| 33 ColorPickerAdvancedComponent mHueDetails; | |
| 34 | |
| 35 ColorPickerAdvancedComponent mSaturationDetails; | |
| 36 | |
| 37 ColorPickerAdvancedComponent mValueDetails; | |
| 38 | |
| 39 private OnColorChangedListener mOnColorChangedListener; | |
| 40 | |
| 41 private int mCurrentColor; | |
| 42 | |
| 43 private final float[] mCurrentHsvValues = new float[3]; | |
| 44 | |
| 45 public ColorPickerAdvanced(Context context, AttributeSet attrs) { | |
| 46 super(context, attrs); | |
| 47 init(); | |
| 48 } | |
| 49 | |
| 50 public ColorPickerAdvanced(Context context, AttributeSet attrs, int defStyle
) { | |
| 51 super(context, attrs, defStyle); | |
| 52 init(); | |
| 53 } | |
| 54 | |
| 55 public ColorPickerAdvanced(Context context) { | |
| 56 super(context); | |
| 57 init(); | |
| 58 } | |
| 59 | |
| 60 /** | |
| 61 * Initializes all the views and variables in the advanced view. | |
| 62 */ | |
| 63 private void init() { | |
| 64 setOrientation(LinearLayout.VERTICAL); | |
| 65 | |
| 66 mHueDetails = createAndAddNewGradient(R.string.color_picker_hue, | |
| 67 HUE_SEEK_BAR_MAX, this); | |
| 68 mSaturationDetails = createAndAddNewGradient(R.string.color_picker_satur
ation, | |
| 69 SATURATION_SEEK_BAR_MAX, this); | |
| 70 mValueDetails = createAndAddNewGradient(R.string.color_picker_value, | |
| 71 VALUE_SEEK_BAR_MAX, this); | |
| 72 refreshGradientComponents(); | |
| 73 } | |
| 74 | |
| 75 /** | |
| 76 * Creates a new GradientDetails object from the parameters provided, initia
lizes it, | |
| 77 * and adds it to this advanced view. | |
| 78 * | |
| 79 * @param textResourceId The text to display for the label. | |
| 80 * @param seekBarMax The maximum value of the seek bar for the gradient. | |
| 81 * @param seekBarListener Object listening to when the user changes the seek
bar. | |
| 82 * | |
| 83 * @return A new GradientDetails object initialized with the given parameter
s. | |
| 84 */ | |
| 85 public ColorPickerAdvancedComponent createAndAddNewGradient(int textResource
Id, | |
| 86 int seekBarMax, | |
| 87 OnSeekBarChangeListener seekBarListener) { | |
| 88 LayoutInflater inflater = (LayoutInflater) getContext() | |
| 89 .getSystemService(Context.LAYOUT_INFLATER_SERVICE); | |
| 90 View newComponent = inflater.inflate(R.layout.color_picker_advanced_comp
onent, null); | |
| 91 addView(newComponent); | |
| 92 | |
| 93 return new ColorPickerAdvancedComponent(newComponent, | |
| 94 textResourceId, | |
| 95 seekBarMax, | |
| 96 seekBarListener); | |
| 97 } | |
| 98 | |
| 99 /** | |
| 100 * Sets the listener for when the user changes the color. | |
| 101 * | |
| 102 * @param onColorChangedListener The object listening for the change in colo
r. | |
| 103 */ | |
| 104 public void setListener(OnColorChangedListener onColorChangedListener) { | |
| 105 mOnColorChangedListener = onColorChangedListener; | |
| 106 } | |
| 107 | |
| 108 /** | |
| 109 * @return The color the user has currently chosen. | |
| 110 */ | |
| 111 public int getColor() { | |
| 112 return mCurrentColor; | |
| 113 } | |
| 114 | |
| 115 /** | |
| 116 * Sets the color that the user has currently chosen. | |
| 117 * | |
| 118 * @param color The currently chosen color. | |
| 119 */ | |
| 120 public void setColor(int color) { | |
| 121 mCurrentColor = color; | |
| 122 Color.colorToHSV(mCurrentColor, mCurrentHsvValues); | |
| 123 refreshGradientComponents(); | |
| 124 } | |
| 125 | |
| 126 /** | |
| 127 * Notifies the listener, if there is one, of a change in the selected color
. | |
| 128 */ | |
| 129 private void notifyColorChanged() { | |
| 130 if (mOnColorChangedListener != null) { | |
| 131 mOnColorChangedListener.onColorChanged(getColor()); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 /** | |
| 136 * Callback for when a slider is updated on the advanced view. | |
| 137 * | |
| 138 * @param seekBar The color slider that was updated. | |
| 139 * @param progress The new value of the color slider. | |
| 140 * @param fromUser Whether it was the user the changed the value, or whether | |
| 141 * we were setting it up. | |
| 142 */ | |
| 143 @Override | |
| 144 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUse
r) { | |
| 145 if (fromUser) { | |
| 146 mCurrentHsvValues[0] = mHueDetails.getValue(); | |
| 147 mCurrentHsvValues[1] = mSaturationDetails.getValue() / 100.0f; | |
| 148 mCurrentHsvValues[2] = mValueDetails.getValue() / 100.0f; | |
| 149 | |
| 150 mCurrentColor = Color.HSVToColor(mCurrentHsvValues); | |
| 151 | |
| 152 updateHueGradient(); | |
| 153 updateSaturationGradient(); | |
| 154 updateValueGradient(); | |
| 155 | |
| 156 notifyColorChanged(); | |
| 157 } | |
| 158 } | |
| 159 | |
| 160 /** | |
| 161 * Updates only the hue gradient display with the hue value for the | |
| 162 * currently selected color. | |
| 163 */ | |
| 164 private void updateHueGradient() { | |
| 165 float[] tempHsvValues = new float[3]; | |
| 166 tempHsvValues[1] = mCurrentHsvValues[1]; | |
| 167 tempHsvValues[2] = mCurrentHsvValues[2]; | |
| 168 | |
| 169 int[] newColors = new int[HUE_COLOR_COUNT]; | |
| 170 | |
| 171 for (int i = 0; i < HUE_COLOR_COUNT; ++i) { | |
| 172 tempHsvValues[0] = i * 60.0f; | |
| 173 newColors[i] = Color.HSVToColor(tempHsvValues); | |
| 174 } | |
| 175 mHueDetails.setGradientColors(newColors); | |
| 176 } | |
| 177 | |
| 178 /** | |
| 179 * Updates only the saturation gradient display with the saturation value | |
| 180 * for the currently selected color. | |
| 181 */ | |
| 182 private void updateSaturationGradient() { | |
| 183 float[] tempHsvValues = new float[3]; | |
| 184 tempHsvValues[0] = mCurrentHsvValues[0]; | |
| 185 tempHsvValues[1] = 0.0f; | |
| 186 tempHsvValues[2] = mCurrentHsvValues[2]; | |
| 187 | |
| 188 int[] newColors = new int[SATURATION_COLOR_COUNT]; | |
| 189 | |
| 190 newColors[0] = Color.HSVToColor(tempHsvValues); | |
| 191 | |
| 192 tempHsvValues[1] = 1.0f; | |
| 193 newColors[1] = Color.HSVToColor(tempHsvValues); | |
| 194 mSaturationDetails.setGradientColors(newColors); | |
| 195 } | |
| 196 | |
| 197 /** | |
| 198 * Updates only the Value gradient display with the Value amount for | |
| 199 * the currently selected color. | |
| 200 */ | |
| 201 private void updateValueGradient() { | |
| 202 float[] tempHsvValues = new float[3]; | |
| 203 tempHsvValues[0] = mCurrentHsvValues[0]; | |
| 204 tempHsvValues[1] = mCurrentHsvValues[1]; | |
| 205 tempHsvValues[2] = 0.0f; | |
| 206 | |
| 207 int[] newColors = new int[VALUE_COLOR_COUNT]; | |
| 208 | |
| 209 newColors[0] = Color.HSVToColor(tempHsvValues); | |
| 210 | |
| 211 tempHsvValues[2] = 1.0f; | |
| 212 newColors[1] = Color.HSVToColor(tempHsvValues); | |
| 213 mValueDetails.setGradientColors(newColors); | |
| 214 } | |
| 215 | |
| 216 /** | |
| 217 * Updates all the gradient displays to show the currently selected color. | |
| 218 */ | |
| 219 private void refreshGradientComponents() { | |
| 220 // Round and bound the saturation value. | |
| 221 int saturationValue = Math.round(mCurrentHsvValues[1] * 100.0f); | |
| 222 saturationValue = Math.min(saturationValue, SATURATION_SEEK_BAR_MAX); | |
| 223 saturationValue = Math.max(saturationValue, 0); | |
| 224 | |
| 225 // Round and bound the Value amount. | |
| 226 int valueValue = Math.round(mCurrentHsvValues[2] * 100.0f); | |
| 227 valueValue = Math.min(valueValue, VALUE_SEEK_BAR_MAX); | |
| 228 valueValue = Math.max(valueValue, 0); | |
| 229 | |
| 230 // Don't need to round the hue value since its possible values match the
seek bar | |
| 231 // range directly. | |
| 232 mHueDetails.setValue(mCurrentHsvValues[0]); | |
| 233 mSaturationDetails.setValue(saturationValue); | |
| 234 mValueDetails.setValue(valueValue); | |
| 235 | |
| 236 updateHueGradient(); | |
| 237 updateSaturationGradient(); | |
| 238 updateValueGradient(); | |
| 239 } | |
| 240 | |
| 241 @Override | |
| 242 public void onStartTrackingTouch(SeekBar seekBar) { | |
| 243 // Do nothing. | |
| 244 } | |
| 245 | |
| 246 @Override | |
| 247 public void onStopTrackingTouch(SeekBar seekBar) { | |
| 248 // Do nothing. | |
| 249 } | |
| 250 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2398543003:
Move Android view based ColorPicker from ui/ to components/ (Closed)
