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| 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.drawable.GradientDrawable; | |
| 9 import android.view.View; | |
| 10 import android.widget.SeekBar; | |
| 11 import android.widget.SeekBar.OnSeekBarChangeListener; | |
| 12 import android.widget.TextView; | |
| 13 | |
| 14 import org.chromium.base.ApiCompatibilityUtils; | |
| 15 | |
| 16 /** | |
| 17 * Encapsulates a single gradient view of the HSV color display, including its l
abel, gradient | |
| 18 * view and seek bar. | |
| 19 * | |
| 20 * Mirrors a "color_picker_advanced_component" layout. | |
| 21 */ | |
| 22 public class ColorPickerAdvancedComponent { | |
| 23 // The view that displays the gradient. | |
| 24 private final View mGradientView; | |
| 25 // The seek bar that allows the user to change the value of this component. | |
| 26 private final SeekBar mSeekBar; | |
| 27 // The set of colors to interpolate the gradient through. | |
| 28 private int[] mGradientColors; | |
| 29 // The Drawable that represents the gradient. | |
| 30 private GradientDrawable mGradientDrawable; | |
| 31 // The text label for the component. | |
| 32 private final TextView mText; | |
| 33 | |
| 34 /** | |
| 35 * Initializes the views. | |
| 36 * | |
| 37 * @param rootView View that contains all the content, such as the label, gr
adient view, etc. | |
| 38 * @param textResourceId The resource ID of the text to show on the label. | |
| 39 * @param seekBarMax The range of the seek bar. | |
| 40 * @param seekBarListener The listener for when the seek bar value changes. | |
| 41 */ | |
| 42 ColorPickerAdvancedComponent(final View rootView, | |
| 43 final int textResourceId, | |
| 44 final int seekBarMax, | |
| 45 final OnSeekBarChangeListener seekBarListener) { | |
| 46 mGradientView = rootView.findViewById(R.id.gradient); | |
| 47 mText = (TextView) rootView.findViewById(R.id.text); | |
| 48 mText.setText(textResourceId); | |
| 49 mGradientDrawable = new GradientDrawable(GradientDrawable.Orientation.LE
FT_RIGHT, null); | |
| 50 mSeekBar = (SeekBar) rootView.findViewById(R.id.seek_bar); | |
| 51 mSeekBar.setOnSeekBarChangeListener(seekBarListener); | |
| 52 mSeekBar.setMax(seekBarMax); | |
| 53 // Setting the thumb offset means the seek bar thumb can move all the wa
y to each end | |
| 54 // of the gradient view. | |
| 55 Context context = rootView.getContext(); | |
| 56 int offset = ApiCompatibilityUtils.getDrawable(context.getResources(), | |
| 57 R.drawable.color_picker_advanced_select_handle).getIntrinsicWidt
h(); | |
| 58 mSeekBar.setThumbOffset(offset / 2); | |
| 59 } | |
| 60 | |
| 61 /** | |
| 62 * @return The value represented by this component, maintained by the seek b
ar progress. | |
| 63 */ | |
| 64 public float getValue() { | |
| 65 return mSeekBar.getProgress(); | |
| 66 } | |
| 67 | |
| 68 /** | |
| 69 * Sets the value of the component (by setting the seek bar value). | |
| 70 * | |
| 71 * @param newValue The value to give the component. | |
| 72 */ | |
| 73 public void setValue(float newValue) { | |
| 74 mSeekBar.setProgress((int) newValue); | |
| 75 } | |
| 76 | |
| 77 /** | |
| 78 * Sets the colors for the gradient view to interpolate through. | |
| 79 * | |
| 80 * @param newColors The set of colors representing the interpolation points
for the gradient. | |
| 81 */ | |
| 82 public void setGradientColors(int[] newColors) { | |
| 83 mGradientColors = newColors.clone(); | |
| 84 mGradientDrawable.setColors(mGradientColors); | |
| 85 mGradientView.setBackground(mGradientDrawable); | |
| 86 } | |
| 87 } | |
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Chromium Code Reviews
Issue 2398543003:
Move Android view based ColorPicker from ui/ to components/ (Closed)
