Back to project page ParticlePlay.
The source code is released under:
GNU General Public License
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package com.droidinteractive.particleplay.preferences; /*/*from w w w .j av a2 s . c o m*/ * Copyright (c) Daniel Nilsson * Copyright (c) 2010 Ragdoll Games * Copyright (c) 2010-2014 Droid Interactive * Copyright (c) 2010-2014 IDKJava Team * * This file is part of Particle Play. * * Particle Play is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Particle Play is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Particle Play. If not, see <http://www.gnu.org/licenses/>. */ 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 ColorPickerPanelView extends View { /** * The width in pixels of the border * surrounding the color panel. */ private final static float BORDER_WIDTH_PX = 1; private 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 ColorPickerPanelView(Context context){ this(context, null); } public ColorPickerPanelView(Context context, AttributeSet attrs){ this(context, attrs, 0); } public ColorPickerPanelView(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; } }