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/*
* Copyright (C) 2006 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 android.text;
import android.graphics.Paint;
/**
* TextPaint is an extension of Paint that leaves room for some extra
* data used during text measuring and drawing.
*/
public class TextPaint extends Paint {
private static final int DEFAULT_UNDERLINE_SIZE = 3;
// Special value 0 means no background paint
public int bgColor;
public int baselineShift;
public int linkColor;
public int[] drawableState;
public float density = 1.0f;
/**
* Special value 0 means no custom underline
* @hide
*/
public int[] underlineColors;
/**
* Defined as a multiplier of the default underline thickness. Use 1.0f for default thickness.
* @hide
*/
public float[] underlineThicknesses;
/**
* The number of underlines currently stored in the array. If 0, no underline is drawn.
* @hide
*/
public int underlineCount;
public TextPaint() {
super();
}
public TextPaint(int flags) {
super(flags);
}
public TextPaint(Paint p) {
super(p);
}
/**
* Copy the fields from tp into this TextPaint, including the
* fields inherited from Paint.
*/
public void set(TextPaint tp) {
super.set(tp);
bgColor = tp.bgColor;
baselineShift = tp.baselineShift;
linkColor = tp.linkColor;
drawableState = tp.drawableState;
density = tp.density;
underlineColors = tp.underlineColors;
underlineThicknesses = tp.underlineThicknesses;
underlineCount = tp.underlineCount;
}
/**
* Defines a custom underline for this Paint.
* @param color underline solid color
* @param thickness underline thickness
* @hide
*/
public void setUnderlineText(int color, float thickness) {
if (color == 0) {
// No underline
return;
}
if (underlineCount == 0) {
underlineColors = new int[DEFAULT_UNDERLINE_SIZE];
underlineThicknesses = new float[DEFAULT_UNDERLINE_SIZE];
underlineColors[underlineCount] = color;
underlineThicknesses[underlineCount] = thickness;
underlineCount++;
} else {
if (underlineCount == underlineColors.length) {
int[] newColors = new int[underlineColors.length + DEFAULT_UNDERLINE_SIZE];
float[] newThickness = new float[underlineThicknesses.length
+ DEFAULT_UNDERLINE_SIZE];
System.arraycopy(underlineColors, 0, newColors, 0, underlineColors.length);
System.arraycopy(
underlineThicknesses, 0, newThickness, 0, underlineThicknesses.length);
underlineColors = newColors;
underlineThicknesses = newThickness;
}
underlineColors[underlineCount] = color;
underlineThicknesses[underlineCount] = thickness;
underlineCount++;
}
}
}
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