ActionMenuButton.java revision 666ea1b28a76aeba74744148b15099254d918671
1666ea1b28a76aeba74744148b15099254d918671Owen Lin/* 2666ea1b28a76aeba74744148b15099254d918671Owen Lin * Copyright (C) 2008 The Android Open Source Project 3666ea1b28a76aeba74744148b15099254d918671Owen Lin * 4666ea1b28a76aeba74744148b15099254d918671Owen Lin * Licensed under the Apache License, Version 2.0 (the "License"); 5666ea1b28a76aeba74744148b15099254d918671Owen Lin * you may not use this file except in compliance with the License. 6666ea1b28a76aeba74744148b15099254d918671Owen Lin * You may obtain a copy of the License at 7666ea1b28a76aeba74744148b15099254d918671Owen Lin * 8666ea1b28a76aeba74744148b15099254d918671Owen Lin * http://www.apache.org/licenses/LICENSE-2.0 9666ea1b28a76aeba74744148b15099254d918671Owen Lin * 10666ea1b28a76aeba74744148b15099254d918671Owen Lin * Unless required by applicable law or agreed to in writing, software 11666ea1b28a76aeba74744148b15099254d918671Owen Lin * distributed under the License is distributed on an "AS IS" BASIS, 12666ea1b28a76aeba74744148b15099254d918671Owen Lin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13666ea1b28a76aeba74744148b15099254d918671Owen Lin * See the License for the specific language governing permissions and 14666ea1b28a76aeba74744148b15099254d918671Owen Lin * limitations under the License. 15666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 16666ea1b28a76aeba74744148b15099254d918671Owen Lin 17666ea1b28a76aeba74744148b15099254d918671Owen Linpackage com.android.camera; 18666ea1b28a76aeba74744148b15099254d918671Owen Lin 19666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.content.Context; 20666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.graphics.Canvas; 21666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.graphics.Paint; 22666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.graphics.RectF; 23666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.text.Layout; 24666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.util.AttributeSet; 25666ea1b28a76aeba74744148b15099254d918671Owen Linimport android.widget.TextView; 26666ea1b28a76aeba74744148b15099254d918671Owen Lin 27666ea1b28a76aeba74744148b15099254d918671Owen Lin/** 28666ea1b28a76aeba74744148b15099254d918671Owen Lin * TextView that draws a bubble behind the text. We cannot use a 29666ea1b28a76aeba74744148b15099254d918671Owen Lin * LineBackgroundSpan because we want to make the bubble taller than the text 30666ea1b28a76aeba74744148b15099254d918671Owen Lin * and TextView's clip is too aggressive. 31666ea1b28a76aeba74744148b15099254d918671Owen Lin */ 32666ea1b28a76aeba74744148b15099254d918671Owen Linpublic class ActionMenuButton extends TextView { 33666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final int CORNER_RADIUS = 8; 34666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final int PADDING_H = 5; 35666ea1b28a76aeba74744148b15099254d918671Owen Lin private static final int PADDING_V = 1; 36666ea1b28a76aeba74744148b15099254d918671Owen Lin 37666ea1b28a76aeba74744148b15099254d918671Owen Lin private final RectF mRect = new RectF(); 38666ea1b28a76aeba74744148b15099254d918671Owen Lin private Paint mPaint; 39666ea1b28a76aeba74744148b15099254d918671Owen Lin 40666ea1b28a76aeba74744148b15099254d918671Owen Lin public ActionMenuButton(Context context) { 41666ea1b28a76aeba74744148b15099254d918671Owen Lin super(context); 42666ea1b28a76aeba74744148b15099254d918671Owen Lin init(); 43666ea1b28a76aeba74744148b15099254d918671Owen Lin } 44666ea1b28a76aeba74744148b15099254d918671Owen Lin 45666ea1b28a76aeba74744148b15099254d918671Owen Lin public ActionMenuButton(Context context, AttributeSet attrs) { 46666ea1b28a76aeba74744148b15099254d918671Owen Lin super(context, attrs); 47666ea1b28a76aeba74744148b15099254d918671Owen Lin init(); 48666ea1b28a76aeba74744148b15099254d918671Owen Lin } 49666ea1b28a76aeba74744148b15099254d918671Owen Lin 50666ea1b28a76aeba74744148b15099254d918671Owen Lin public ActionMenuButton(Context context, AttributeSet attrs, int defStyle) { 51666ea1b28a76aeba74744148b15099254d918671Owen Lin super(context, attrs, defStyle); 52666ea1b28a76aeba74744148b15099254d918671Owen Lin init(); 53666ea1b28a76aeba74744148b15099254d918671Owen Lin } 54666ea1b28a76aeba74744148b15099254d918671Owen Lin 55666ea1b28a76aeba74744148b15099254d918671Owen Lin private void init() { 56666ea1b28a76aeba74744148b15099254d918671Owen Lin setFocusable(true); 57666ea1b28a76aeba74744148b15099254d918671Owen Lin // We need extra padding below to prevent the bubble being cut. 58666ea1b28a76aeba74744148b15099254d918671Owen Lin setPadding(PADDING_H, 0, PADDING_H, PADDING_V); 59666ea1b28a76aeba74744148b15099254d918671Owen Lin 60666ea1b28a76aeba74744148b15099254d918671Owen Lin mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); 61666ea1b28a76aeba74744148b15099254d918671Owen Lin mPaint.setColor(getContext().getResources() 62666ea1b28a76aeba74744148b15099254d918671Owen Lin .getColor(R.color.bubble_dark_background)); 63666ea1b28a76aeba74744148b15099254d918671Owen Lin } 64666ea1b28a76aeba74744148b15099254d918671Owen Lin 65666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 66666ea1b28a76aeba74744148b15099254d918671Owen Lin protected void drawableStateChanged() { 67666ea1b28a76aeba74744148b15099254d918671Owen Lin invalidate(); 68666ea1b28a76aeba74744148b15099254d918671Owen Lin super.drawableStateChanged(); 69666ea1b28a76aeba74744148b15099254d918671Owen Lin } 70666ea1b28a76aeba74744148b15099254d918671Owen Lin 71666ea1b28a76aeba74744148b15099254d918671Owen Lin @Override 72666ea1b28a76aeba74744148b15099254d918671Owen Lin public void draw(Canvas canvas) { 73666ea1b28a76aeba74744148b15099254d918671Owen Lin final Layout layout = getLayout(); 74666ea1b28a76aeba74744148b15099254d918671Owen Lin final RectF rect = mRect; 75666ea1b28a76aeba74744148b15099254d918671Owen Lin final int left = getCompoundPaddingLeft(); 76666ea1b28a76aeba74744148b15099254d918671Owen Lin final int top = getExtendedPaddingTop(); 77666ea1b28a76aeba74744148b15099254d918671Owen Lin 78666ea1b28a76aeba74744148b15099254d918671Owen Lin rect.set(left + layout.getLineLeft(0) - PADDING_H, 79666ea1b28a76aeba74744148b15099254d918671Owen Lin top + layout.getLineTop(0) - PADDING_V, 80666ea1b28a76aeba74744148b15099254d918671Owen Lin Math.min(left + layout.getLineRight(0) + PADDING_H, 81666ea1b28a76aeba74744148b15099254d918671Owen Lin mScrollX + mRight - mLeft), 82666ea1b28a76aeba74744148b15099254d918671Owen Lin top + layout.getLineBottom(0) + PADDING_V); 83666ea1b28a76aeba74744148b15099254d918671Owen Lin canvas.drawRoundRect(rect, CORNER_RADIUS, CORNER_RADIUS, mPaint); 84666ea1b28a76aeba74744148b15099254d918671Owen Lin 85666ea1b28a76aeba74744148b15099254d918671Owen Lin super.draw(canvas); 86666ea1b28a76aeba74744148b15099254d918671Owen Lin } 87666ea1b28a76aeba74744148b15099254d918671Owen Lin} 88