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/*
* Copyright (C) 2010 Daniel Nilsson
* Copyright (C) 2012 THe CyanogenMod 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.settings.notificationlight;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import android.view.View;
/**
* This class draws a panel which which will be filled with a color which can be
* set. It can be used to show the currently selected color which you will get
* from the {@link ColorPickerView}.
*
* @author Daniel Nilsson
*/
public class ColorPanelView extends View {
/**
* The width in pixels of the border surrounding the color panel.
*/
private final static float BORDER_WIDTH_PX = 1;
private static float mDensity = 1f;
private int mBorderColor = 0xff6E6E6E;
private int mColor = 0xff000000;
private Paint mBorderPaint;
private Paint mColorPaint;
private RectF mDrawingRect;
private RectF mColorRect;
private AlphaPatternDrawable mAlphaPattern;
public ColorPanelView(Context context) {
this(context, null);
}
public ColorPanelView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ColorPanelView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
private void init() {
mBorderPaint = new Paint();
mColorPaint = new Paint();
mDensity = getContext().getResources().getDisplayMetrics().density;
}
@Override
protected void onDraw(Canvas canvas) {
final RectF rect = mColorRect;
if (BORDER_WIDTH_PX > 0) {
mBorderPaint.setColor(mBorderColor);
canvas.drawRect(mDrawingRect, mBorderPaint);
}
if (mAlphaPattern != null) {
mAlphaPattern.draw(canvas);
}
mColorPaint.setColor(mColor);
canvas.drawRect(rect, mColorPaint);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(width, height);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
mDrawingRect = new RectF();
mDrawingRect.left = getPaddingLeft();
mDrawingRect.right = w - getPaddingRight();
mDrawingRect.top = getPaddingTop();
mDrawingRect.bottom = h - getPaddingBottom();
setUpColorRect();
}
private void setUpColorRect() {
final RectF dRect = mDrawingRect;
float left = dRect.left + BORDER_WIDTH_PX;
float top = dRect.top + BORDER_WIDTH_PX;
float bottom = dRect.bottom - BORDER_WIDTH_PX;
float right = dRect.right - BORDER_WIDTH_PX;
mColorRect = new RectF(left, top, right, bottom);
mAlphaPattern = new AlphaPatternDrawable((int) (5 * mDensity));
mAlphaPattern.setBounds(Math.round(mColorRect.left),
Math.round(mColorRect.top),
Math.round(mColorRect.right),
Math.round(mColorRect.bottom));
}
/**
* Set the color that should be shown by this view.
*
* @param color
*/
public void setColor(int color) {
mColor = color;
invalidate();
}
/**
* Get the color currently show by this view.
*
* @return
*/
public int getColor() {
return mColor;
}
/**
* Set the color of the border surrounding the panel.
*
* @param color
*/
public void setBorderColor(int color) {
mBorderColor = color;
invalidate();
}
/**
* Get the color of the border surrounding the panel.
*/
public int getBorderColor() {
return mBorderColor;
}
}
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