/*
* Copyright (C) 2013 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 org.holoeverywhere.widget.datetimepicker.time;
import android.content.Context;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import org.holoeverywhere.R;
/**
* Draws a simple white circle on which the numbers will be drawn.
*/
public class CircleView extends View {
private static final String TAG = "CircleView";
private final Paint mPaint;
private final int mPointerRadius;
private boolean mIs24HourMode;
private int mCircleBackground;
private int mPointerColor;
private float mCircleRadiusMultiplier;
private float mAmPmCircleRadiusMultiplier;
private boolean mIsInitialized;
private boolean mDrawValuesReady;
private int mXCenter;
private int mYCenter;
private int mCircleRadius;
public CircleView(Context context) {
this(context, null);
}
public CircleView(Context context, AttributeSet attrs) {
this(context, attrs, R.attr.dateTimePickerStyle);
}
public CircleView(Context context, AttributeSet attrs, int defStyle) {
super(context);
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.DateTimePicker, defStyle, R.style.Holo_DateTimePicker);
mCircleBackground = a.getColor(R.styleable.DateTimePicker_timeCircleColor, 0);
mPointerColor = a.getColor(R.styleable.DateTimePicker_timeCenterPointerColor, 0);
mPointerRadius = a.getInteger(R.styleable.DateTimePicker_timeCenterPointerRadius, 0);
a.recycle();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mIsInitialized = false;
}
public void initialize(Context context, boolean is24HourMode) {
if (mIsInitialized) {
Log.e(TAG, "CircleView may only be initialized once.");
return;
}
Resources res = context.getResources();
mIs24HourMode = is24HourMode;
if (is24HourMode) {
mCircleRadiusMultiplier = Float.parseFloat(
res.getString(R.string.time_circle_radius_multiplier_24HourMode));
} else {
mCircleRadiusMultiplier = Float.parseFloat(
res.getString(R.string.time_circle_radius_multiplier));
mAmPmCircleRadiusMultiplier =
Float.parseFloat(res.getString(R.string.time_ampm_circle_radius_multiplier));
}
mIsInitialized = true;
}
@Override
public void onDraw(Canvas canvas) {
int viewWidth = getWidth();
if (viewWidth == 0 || !mIsInitialized) {
return;
}
if (!mDrawValuesReady) {
mXCenter = getWidth() / 2;
mYCenter = getHeight() / 2;
mCircleRadius = (int) (Math.min(mXCenter, mYCenter) * mCircleRadiusMultiplier);
if (!mIs24HourMode) {
// We'll need to draw the AM/PM circles, so the main circle will need to have
// a slightly higher center. To keep the entire view centered vertically, we'll
// have to push it up by half the radius of the AM/PM circles.
int amPmCircleRadius = (int) (mCircleRadius * mAmPmCircleRadiusMultiplier);
mYCenter -= amPmCircleRadius / 2;
}
mDrawValuesReady = true;
}
mPaint.setColor(mCircleBackground);
canvas.drawCircle(mXCenter, mYCenter, mCircleRadius, mPaint);
mPaint.setColor(mPointerColor);
canvas.drawCircle(mXCenter, mYCenter, mPointerRadius, mPaint);
}
}