SquareCanvas.java

package com.smartandroid.sa.avatars;

/*
 * Copyright 2014 Pedro Álvarez Fernández <pedroafa@gmail.com>
 *
 * 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.
 */
import android.graphics.Bitmap;
import android.graphics.Canvas;

public class SquareCanvas {

	private final SquareUtils mSquareUtils;
	private final AvatarBorder mAvatarBorder;
	private final Canvas mCanvas;

	public SquareCanvas(SquareUtils squareUtils, AvatarBorder avatarBorder, Canvas canvas) {
		mSquareUtils = squareUtils;
		mAvatarBorder = avatarBorder;
		mCanvas = canvas;

		mCanvas.drawColor(avatarBorder.getColor());
	}

	public void drawBitmap(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, mCanvas.getWidth(), mCanvas.getHeight());
		mCanvas.drawBitmap(scaledBitmap, 0f, 0f, null);
		scaledBitmap.recycle();
	}

	public void drawBitmapLeft(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), mCanvas.getHeight());
		mCanvas.drawBitmap(scaledBitmap, 0f, 0f, null);
		scaledBitmap.recycle();
	}

	public void drawBitmapLeftTop(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), getNewHeight());
		mCanvas.drawBitmap(scaledBitmap, 0f, 0f, null);
		scaledBitmap.recycle();
	}

	public void drawBitmapLeftBottom(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), getNewHeight());
		mCanvas.drawBitmap(scaledBitmap, 0f, getBottomPosition(), null);
		scaledBitmap.recycle();
	}

	public void drawBitmapRight(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), mCanvas.getHeight());
		mCanvas.drawBitmap(scaledBitmap, getRightPosition(), 0f, null);
		scaledBitmap.recycle();
	}

	public void drawBitmapRightTop(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), getNewHeight());
		mCanvas.drawBitmap(scaledBitmap, getRightPosition(), 0f, null);
		scaledBitmap.recycle();
	}

	public void drawBitmapRightBottom(Bitmap bitmap) {
		Bitmap scaledBitmap = mSquareUtils.createScaledBitmap(bitmap, getNewWidth(), getNewHeight());
		mCanvas.drawBitmap(scaledBitmap, getRightPosition(), getBottomPosition(), null);
		scaledBitmap.recycle();
	}

	private int getHalfBorderWidth() {
		return mAvatarBorder.getSquareWidth() / 2;
	}

	private int getNewWidth() {
		return (mCanvas.getWidth() / 2) - getHalfBorderWidth();
	}

	private int getNewHeight() {
		return (mCanvas.getHeight() / 2) - getHalfBorderWidth();
	}

	private int getRightPosition() {
		return (mCanvas.getWidth() / 2) + mAvatarBorder.getSquareWidth();
	}

	private int getBottomPosition() {
		return (mCanvas.getHeight() / 2) + mAvatarBorder.getSquareWidth();
	}
}