The Tor Browser / file comparison
comparison: mobile/android/base/home/FadedTextView.java
mobile/android/base/home/FadedTextView.java
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
equal
deleted
inserted
replaced
| -1:000000000000 | 0:07be8af7d83a |
|---|---|
| 1 /* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- | |
| 2 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 package org.mozilla.gecko.home; | |
| 7 | |
| 8 import android.content.Context; | |
| 9 import android.content.res.TypedArray; | |
| 10 import android.graphics.Canvas; | |
| 11 import android.graphics.LinearGradient; | |
| 12 import android.graphics.Shader; | |
| 13 import android.graphics.drawable.Drawable; | |
| 14 import android.util.AttributeSet; | |
| 15 import android.widget.TextView; | |
| 16 | |
| 17 import org.mozilla.gecko.R; | |
| 18 | |
| 19 /** | |
| 20 * FadedTextView fades the ends of the text by fadeWidth amount, | |
| 21 * if the text is too long and requires an ellipsis. | |
| 22 */ | |
| 23 public class FadedTextView extends TextView { | |
| 24 | |
| 25 // Width of the fade effect from end of the view. | |
| 26 private int mFadeWidth; | |
| 27 | |
| 28 // Padding for compound drawables. | |
| 29 private int mCompoundPadding; | |
| 30 | |
| 31 public FadedTextView(Context context) { | |
| 32 this(context, null); | |
| 33 } | |
| 34 | |
| 35 public FadedTextView(Context context, AttributeSet attrs) { | |
| 36 this(context, attrs, android.R.attr.textViewStyle); | |
| 37 } | |
| 38 | |
| 39 public FadedTextView(Context context, AttributeSet attrs, int defStyle) { | |
| 40 super(context, attrs, defStyle); | |
| 41 | |
| 42 TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FadedTextView); | |
| 43 mFadeWidth = a.getDimensionPixelSize(R.styleable.FadedTextView_fadeWidth, 0); | |
| 44 a.recycle(); | |
| 45 | |
| 46 mCompoundPadding = getCompoundDrawablePadding(); | |
| 47 } | |
| 48 | |
| 49 /** | |
| 50 * {@inheritDoc} | |
| 51 */ | |
| 52 @Override | |
| 53 public void onDraw(Canvas canvas) { | |
| 54 int width = getMeasuredWidth(); | |
| 55 | |
| 56 // Layout doesn't return a proper width for getWidth(). | |
| 57 // Instead check the width of the first line, as we've restricted to just one line. | |
| 58 if (getLayout().getLineWidth(0) > width) { | |
| 59 final Drawable leftDrawable = getCompoundDrawables()[0]; | |
| 60 int drawableWidth = 0; | |
| 61 if (leftDrawable != null) { | |
| 62 drawableWidth = leftDrawable.getIntrinsicWidth() + mCompoundPadding; | |
| 63 width -= drawableWidth; | |
| 64 } | |
| 65 | |
| 66 int color = getCurrentTextColor(); | |
| 67 float stop = ((float) (width - mFadeWidth) / (float) width); | |
| 68 LinearGradient gradient = new LinearGradient(0, 0, width, 0, | |
| 69 new int[] { color, color, 0x0 }, | |
| 70 new float[] { 0, stop, 1.0f - (drawableWidth / width) }, | |
| 71 Shader.TileMode.CLAMP); | |
| 72 getPaint().setShader(gradient); | |
| 73 } else { | |
| 74 getPaint().setShader(null); | |
| 75 } | |
| 76 | |
| 77 // Do a default draw. | |
| 78 super.onDraw(canvas); | |
| 79 } | |
| 80 } |
