Android Open Source - NXTControl Base Item View

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Back to project page NXTControl.

License

The source code is released under:

GNU General Public License

Java Source Code

//
//    NXT Control
//    Copyright (c) 2013 Carlos Rafael Gimenes das Neves
////from w ww . j  a va  2 s.  c  o m
//    This program 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.
//
//    This program 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 this program. If not, see {http://www.gnu.org/licenses/}.
//
//    https://github.com/BandTec/NXTControl
//
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.view.View;
import android.view.ViewDebug.ExportedProperty;

public final class BaseItemView extends View {
  private String text, ellipsizedText;
  private int state, width;
  
  public BaseItemView(Context context) {
    super(context);
  }
  
  private void processEllipsis() {
    ellipsizedText = UI.ellipsizeText(text, UI._22sp, width - (UI._8dp << 1));
  }
  
  public void setItemState(String text, int state) {
    final int w = getWidth();
    this.state = (this.state & ~(UI.STATE_CURRENT | UI.STATE_SELECTED | UI.STATE_MULTISELECTED)) | state;
    //watch out, DO NOT use equals()!
    if (this.text == text && width == w)
      return;
    this.width = w;
    this.text = text;
    processEllipsis();
  }
  
  @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
  public void invalidateDrawable(Drawable drawable) {
  }
  
  @Override
  protected boolean verifyDrawable(Drawable drawable) {
    return false;
  }
  
  @Override
  @ExportedProperty(category = "drawing")
  public boolean isOpaque() {
    return (state != 0);
  }
  
  @Override
  protected void drawableStateChanged() {
    super.drawableStateChanged();
    state = UI.handleStateChanges(state, isPressed(), isFocused(), this);
  }
  
  @Override
  protected int getSuggestedMinimumHeight() {
    return UI.defaultControlSize;
  }
  
  @Override
  public int getMinimumHeight() {
    return UI.defaultControlSize;
  }
  
  @Override
  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    setMeasuredDimension(resolveSize(0, widthMeasureSpec), UI.defaultControlSize);
  }
  
  @Override
  protected void onSizeChanged(int w, int h, int oldw, int oldh) {
    super.onSizeChanged(w, h, oldw, oldh);
    if (width != w) {
      width = w;
      processEllipsis();
    }
  }
  
  @Override
  protected void onDraw(Canvas canvas) {
    final int txtColor = ((state == 0) ? UI.color_text : UI.color_text_selected);
    getDrawingRect(UI.rect);
    UI.drawBg(canvas, state, UI.rect, false);
    UI.drawText(canvas, ellipsizedText, txtColor, UI._22sp, UI._8dp, (UI.defaultControlSize >> 1) - (UI._22spBox >> 1) + UI._22spYinBox);
  }
}

Java Source Code List

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