Android Open Source - EnhancedEditText Text Drawable

• Back to Development/edittext  ↑

From Project

Back to project page EnhancedEditText.

License

The source code is released under:

Apache License

Java Source Code

/**
 * Copyright 2013 Damien Villeneuve/* w  ww.  jav a  2  s . c o m*/
 *
 * 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.
 *
 * It uses Iconify by Joan Zapata, licensed under Apache License version 2, which is compatible
 * with this library's license.
 */
package fr.dvilleneuve.android;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.ColorFilter;
import android.graphics.Paint;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.util.TypedValue;

public class TextDrawable extends Drawable {

  private final Paint paint = new Paint();
  private final Rect bounds = new Rect();
  private final Context context;
  private final String text;
  private Paint.FontMetricsInt fontMetrics;

  public TextDrawable(Context context, String text) {
    this.context = context;
    this.text = text;

    paint.setColor(Color.BLACK);
    paint.setTextSize(convertSpToPx(15));
    paint.setAntiAlias(true);
    paint.setStyle(Paint.Style.FILL);
    paint.setTextAlign(Paint.Align.RIGHT);
  }

  /**
   * Set the size of the drawable.
   *
   * @param dimenRes The dimension resource.
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable sizeRes(int dimenRes) {
    return sizePx(context.getResources().getDimensionPixelSize(dimenRes));
  }

  /**
   * Set the size of the drawable.
   *
   * @param size The size in density-independent pixels (dp).
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable sizeDp(float size) {
    return sizePx(convertDpToPx(size));
  }

  /**
   * Set the size of the drawable.
   *
   * @param size The size in pixels (px).
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable sizePx(float size) {
    paint.setTextSize(size);
    invalidateSelf();
    return this;
  }

  /**
   * Set the typeface of the drawable.
   *
   * @param typeface The typeface
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable typeface(Typeface typeface) {
    paint.setTypeface(typeface);
    invalidateSelf();
    return this;
  }

  /**
   * Set the alignment of the drawable.
   *
   * @param align The align
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable align(Paint.Align align) {
    paint.setTextAlign(align);
    invalidateSelf();
    return this;
  }

  /**
   * Set the size of the drawable.
   *
   * @param isBold true if the text should be bold
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable bold(boolean isBold) {
    paint.setFakeBoldText(isBold);
    invalidateSelf();
    return this;
  }

  /**
   * Set the color of the drawable.
   *
   * @param color The color, usually from android.graphics.Color or 0xFF012345.
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable color(int color) {
    paint.setColor(color);
    invalidateSelf();
    return this;
  }

  /**
   * Set the color of the drawable.
   *
   * @param colorRes The color resource, from your R file.
   * @return The current TextDrawable for chaining.
   */
  public TextDrawable colorRes(int colorRes) {
    return color(context.getResources().getColor(colorRes));
  }

  /**
   * Set the alpha of this drawable.
   *
   * @param alpha The alpha, between 0 (transparent) and 255 (opaque).
   * @return The current IconDrawable for chaining.
   */
  public TextDrawable alpha(int alpha) {
    setAlpha(alpha);
    invalidateSelf();
    return this;
  }

  @Override
  public void draw(Canvas canvas) {
    canvas.drawText(text, getIntrinsicWidth(), getIntrinsicHeight() - getFontMetrics().descent, paint);
  }

  @Override
  public int getIntrinsicWidth() {
    paint.getTextBounds(text, 0, text.length(), bounds);
    return bounds.width();
  }

  @Override
  public int getIntrinsicHeight() {
    return getFontMetrics().bottom - getFontMetrics().top;
  }

  @Override
  public void setAlpha(int alpha) {
    paint.setAlpha(alpha);
  }

  @Override
  public void setColorFilter(ColorFilter cf) {
    paint.setColorFilter(cf);
  }

  @Override
  public int getOpacity() {
    return PixelFormat.TRANSLUCENT;
  }

  private Paint.FontMetricsInt getFontMetrics() {
    if (fontMetrics == null) {
      fontMetrics = paint.getFontMetricsInt();
    }
    return fontMetrics;
  }

  private float convertSpToPx(float dp) {
    return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, dp, context.getResources().getDisplayMetrics());
  }

  private float convertDpToPx(float dp) {
    return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, context.getResources().getDisplayMetrics());
  }
}

Java Source Code List

• Back to Development/edittext  ↑