| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.calculator2; |
| |
| import android.content.Context; |
| import android.graphics.Paint; |
| import android.util.AttributeSet; |
| import android.view.View.OnClickListener; |
| import android.view.View; |
| import android.widget.Button; |
| |
| /** |
| * Button with click-animation effect. |
| */ |
| class ColorButton extends Button implements OnClickListener { |
| int CLICK_FEEDBACK_COLOR; |
| static final int CLICK_FEEDBACK_INTERVAL = 10; |
| static final int CLICK_FEEDBACK_DURATION = 350; |
| |
| float mTextX; |
| float mTextY; |
| long mAnimStart; |
| OnClickListener mListener; |
| |
| public ColorButton(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| Calculator calc = (Calculator) context; |
| mListener = calc.mListener; |
| setOnClickListener(this); |
| } |
| |
| public void onClick(View view) { |
| mListener.onClick(this); |
| } |
| |
| @Override |
| public void onSizeChanged(int w, int h, int oldW, int oldH) { |
| measureText(); |
| } |
| |
| private void measureText() { |
| Paint paint = getPaint(); |
| mTextX = (getWidth() - paint.measureText(getText().toString())) / 2; |
| mTextY = (getHeight() - paint.ascent() - paint.descent()) / 2; |
| } |
| |
| @Override |
| protected void onTextChanged(CharSequence text, int start, int before, int after) { |
| measureText(); |
| } |
| } |