Android Open Source - NXTControl Bg Image Button

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License

The source code is released under:

GNU General Public License

Java Source Code

//
// FPlayAndroid is distributed under the FreeBSD License
///*  www .  j  a v a  2  s .c  om*/
// Copyright (c) 2013, Carlos Rafael Gimenes das Neves
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those
// of the authors and should not be interpreted as representing official policies,
// either expressed or implied, of the FreeBSD Project.
//
// https://github.com/carlosrafaelgn/FPlayAndroid
//
package br.com.bandtec.nxtcontrol.ui;

import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.AttributeSet;
import android.view.ViewDebug.ExportedProperty;
import android.widget.ImageButton;

public final class BgImageButton extends ImageButton {
  private boolean forceBlack;
  private Drawable white, black, whiteChecked, blackChecked;
  private int state;
  private boolean checkable, checked;
  
  public BgImageButton(Context context) {
    super(context);
    init();
  }
  
  public BgImageButton(Context context, AttributeSet attrs) {
    super(context, attrs);
    init();
  }
  
  public BgImageButton(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    init();
  }
  
  private void init() {
    super.setBackgroundResource(0);
    super.setScaleType(ScaleType.CENTER);
    super.setPadding(UI._8sp, UI._8sp, UI._8sp, UI._8sp);
  }
  
  public void setForceBlack(boolean forceBlack) {
    this.forceBlack = forceBlack;
    super.setImageDrawable((forceBlack || (state != 0)) ? (checked ? blackChecked : black) : (checked ? whiteChecked : white));
  }
  
  public boolean isCheckable() {
    return checkable;
  }
  
  public void setCheckable(boolean checkable) {
    if (!checkable)
      setChecked(false);
    this.checkable = checkable;
  }
  
  public void toggle() {
    setChecked(!checked);
  }
  
  public boolean isChecked() {
    return checked;
  }
  
  public void setChecked(boolean checked) {
    checkable = true;
    if (this.checked != checked) {
      this.checked = checked;
      super.setImageDrawable((forceBlack || (state != 0)) ? (checked ? blackChecked : black) : (checked ? whiteChecked : white));
    }
  }
  
  @Override
  public boolean performClick() {
    if (checkable)
      toggle();
    return super.performClick();
  }
  
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
  @Override
  public void setBackground(Drawable background) {
    super.setBackground(null);
  }
  
  @Override
  @Deprecated
  public void setBackgroundDrawable(Drawable background) {
    super.setBackgroundDrawable(null);
  }
  
  @Override
  public void setBackgroundResource(int resid) {
    super.setBackgroundResource(0);
  }
  
  @Override
  public void setBackgroundColor(int color) {
    super.setBackgroundResource(0);
  }
  
  @Override
  public Drawable getBackground() {
    return null;
  }
  
  @Override
  @ExportedProperty(category = "drawing")
  public boolean isOpaque() {
    return (state != 0);
  }
  
  @Override
  protected void drawableStateChanged() {
    super.drawableStateChanged();
    state = UI.handleStateChanges(state, isPressed(), isFocused(), this);
    super.setImageDrawable((forceBlack || (state != 0)) ? (checked ? blackChecked : black) : (checked ? whiteChecked : white));
  }
  
  public void setImageDrawables(Drawable white, Drawable black) {
    this.white = white;
    this.black = black;
    this.whiteChecked = null;
    this.blackChecked = null;
    super.setImageDrawable((forceBlack || (state != 0)) ? black : white);
  }
  
  public void setImageDrawables(Drawable white, Drawable black, Drawable whiteChecked, Drawable blackChecked) {
    this.white = white;
    this.black = black;
    this.whiteChecked = whiteChecked;
    this.blackChecked = blackChecked;
    super.setImageDrawable((forceBlack || (state != 0)) ? (checked ? blackChecked : black) : (checked ? whiteChecked : white));
  }
  
  @Override
  protected void onDraw(Canvas canvas) {
    getDrawingRect(UI.rect);
    UI.drawBg(canvas, state, UI.rect, true);
    super.onDraw(canvas);
  }
}

Java Source Code List

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