diff options
Diffstat (limited to 'src/org/cyanogenmod/theme/util/FittedTextView.java')
-rw-r--r-- | src/org/cyanogenmod/theme/util/FittedTextView.java | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/org/cyanogenmod/theme/util/FittedTextView.java b/src/org/cyanogenmod/theme/util/FittedTextView.java new file mode 100644 index 0000000..cbfe5b9 --- /dev/null +++ b/src/org/cyanogenmod/theme/util/FittedTextView.java @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2014 The CyanogenMod 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 org.cyanogenmod.theme.util; + +import android.content.Context; +import android.graphics.Paint; +import android.util.AttributeSet; +import android.util.TypedValue; +import android.widget.TextView; + +/** + * Change the font size to match the measured + * textview size by width + * + */ +public class FittedTextView extends TextView { + private Paint mPaint; + + public FittedTextView(Context context) { + super(context); + mPaint = new Paint(); + } + + public FittedTextView(Context context, AttributeSet attrs) { + super(context, attrs); + mPaint = new Paint(); + } + + public FittedTextView(Context context, AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + mPaint = new Paint(); + } + + @Override + protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { + super.onMeasure(widthMeasureSpec, heightMeasureSpec); + final float THRESHOLD = 0.5f; + final float TARGET_WIDTH = getMeasuredWidth(); + final String text = getText().toString(); + mPaint.set(getPaint()); + + float max = 200; + float min = 2; + while(max > min) { + float size = (max+min) / 2; + mPaint.setTextSize(size); + float measuredWidth = mPaint.measureText(text); + if (Math.abs(TARGET_WIDTH - measuredWidth) <= THRESHOLD) { + break; + } else if (measuredWidth > TARGET_WIDTH) { + max = size-1; + } else { + min = size+1; + } + } + this.setTextSize(TypedValue.COMPLEX_UNIT_PX, min-1); + } +} |