diff options
Diffstat (limited to 'src/com/android/camera/drawable/TextDrawable.java')
-rw-r--r-- | src/com/android/camera/drawable/TextDrawable.java | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/com/android/camera/drawable/TextDrawable.java b/src/com/android/camera/drawable/TextDrawable.java new file mode 100644 index 000000000..60d8719c4 --- /dev/null +++ b/src/com/android/camera/drawable/TextDrawable.java @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2012 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.drawable; + +import android.content.res.Resources; +import android.graphics.Canvas; +import android.graphics.Color; +import android.graphics.ColorFilter; +import android.graphics.Paint; +import android.graphics.Typeface; +import android.graphics.Paint.Align; +import android.graphics.Rect; +import android.graphics.drawable.Drawable; +import android.util.TypedValue; + + +public class TextDrawable extends Drawable { + + private static final int DEFAULT_COLOR = Color.WHITE; + private static final int DEFAULT_TEXTSIZE = 15; + + private Paint mPaint; + private CharSequence mText; + private int mIntrinsicWidth; + private int mIntrinsicHeight; + private boolean mUseDropShadow; + + public TextDrawable(Resources res) { + this(res, ""); + } + + public TextDrawable(Resources res, CharSequence text) { + mText = text; + updatePaint(); + float textSize = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, + DEFAULT_TEXTSIZE, res.getDisplayMetrics()); + mPaint.setTextSize(textSize); + mIntrinsicWidth = (int) (mPaint.measureText(mText, 0, mText.length()) + .5); + mIntrinsicHeight = mPaint.getFontMetricsInt(null); + } + + private void updatePaint() { + if (mPaint == null) { + mPaint = new Paint(Paint.ANTI_ALIAS_FLAG); + } + mPaint.setColor(DEFAULT_COLOR); + mPaint.setTextAlign(Align.CENTER); + if (mUseDropShadow) { + mPaint.setTypeface(Typeface.DEFAULT_BOLD); + mPaint.setShadowLayer(10, 0, 0, 0xff000000); + } else { + mPaint.setTypeface(Typeface.DEFAULT); + mPaint.setShadowLayer(0, 0, 0, 0); + } + } + + public void setText(CharSequence txt) { + mText = txt; + if (txt == null) { + mIntrinsicWidth = 0; + mIntrinsicHeight = 0; + } else { + mIntrinsicWidth = (int) (mPaint.measureText(mText, 0, mText.length()) + .5); + mIntrinsicHeight = mPaint.getFontMetricsInt(null); + } + } + + @Override + public void draw(Canvas canvas) { + if (mText != null) { + Rect bounds = getBounds(); + canvas.drawText(mText, 0, mText.length(), + bounds.centerX(), bounds.centerY(), mPaint); + } + } + + public void setDropShadow(boolean shadow) { + mUseDropShadow = shadow; + updatePaint(); + } + + @Override + public int getOpacity() { + return mPaint.getAlpha(); + } + + @Override + public int getIntrinsicWidth() { + return mIntrinsicWidth; + } + + @Override + public int getIntrinsicHeight() { + return mIntrinsicHeight; + } + + @Override + public void setAlpha(int alpha) { + mPaint.setAlpha(alpha); + } + + @Override + public void setColorFilter(ColorFilter filter) { + mPaint.setColorFilter(filter); + } + +} |