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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.
*/
package com.android.camera.ui;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Paint.FontMetricsInt;
public class StringTexture extends CanvasTexture {
private static int DEFAULT_PADDING = 1;
private final String mText;
private final Paint mPaint;
private final FontMetricsInt mMetrics;
public StringTexture(String text, Paint paint,
FontMetricsInt metrics, int width, int height) {
super(width, height);
mText = text;
mPaint = paint;
mMetrics = metrics;
}
public static StringTexture newInstance(String text, Paint paint) {
FontMetricsInt metrics = paint.getFontMetricsInt();
int width = (int) (.5f + paint.measureText(text)) + DEFAULT_PADDING * 2;
int height = metrics.bottom - metrics.top + DEFAULT_PADDING * 2;
return new StringTexture(text, paint, metrics, width, height);
}
public static StringTexture newInstance(
String text, float textSize, int color) {
Paint paint = new Paint();
paint.setTextSize(textSize);
paint.setAntiAlias(true);
paint.setColor(color);
return newInstance(text, paint);
}
@Override
protected void onDraw(Canvas canvas, Bitmap backing) {
canvas.translate(DEFAULT_PADDING, DEFAULT_PADDING - mMetrics.ascent);
canvas.drawText(mText, 0, 0, mPaint);
}
}
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