package com.code19.library;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BlurMaskFilter;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.text.Layout.Alignment;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.style.AlignmentSpan;
import android.text.style.BackgroundColorSpan;
import android.text.style.BulletSpan;
import android.text.style.ClickableSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.ImageSpan;
import android.text.style.LeadingMarginSpan;
import android.text.style.MaskFilterSpan;
import android.text.style.QuoteSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.ScaleXSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.SubscriptSpan;
import android.text.style.SuperscriptSpan;
import android.text.style.TypefaceSpan;
import android.text.style.URLSpan;
import android.text.style.UnderlineSpan;
import static android.graphics.BlurMaskFilter.Blur;
/**
* <pre>
* author: Blankj
* blog : http://blankj.com
* time : 16/12/13
* https://github.com/smuyyh/CommonLibary
* https://github.com/Blankj/AndroidUtilCode
* https://github.com/Blankj/AndroidUtilCode/blob/master/utilcode/src/main/java/com/blankj/utilcode/utils/SpannableStringUtils.java
* doc http://www.jianshu.com/p/ab1a72750824
* </pre>
*/
public class SpannableStringUtils {
private SpannableStringUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}
public static Builder getBuilder(Context context, @NonNull CharSequence text) {
return new Builder(context, text);
}
public static class Builder {
private int defaultValue = 0x12000000;
private CharSequence text;
private int flag;
@ColorInt
private int foregroundColor;
@ColorInt
private int backgroundColor;
@ColorInt
private int quoteColor;
private boolean isLeadingMargin;
private int first;
private int rest;
private boolean isBullet;
private int gapWidth;
private int bulletColor;
private float proportion;
private float xProportion;
private boolean isStrikethrough;
private boolean isUnderline;
private boolean isSuperscript;
private boolean isSubscript;
private boolean isBold;
private boolean isItalic;
private boolean isBoldItalic;
private String fontFamily;
private Alignment align;
private boolean imageIsBitmap;
private Bitmap bitmap;
private boolean imageIsDrawable;
private Drawable drawable;
private boolean imageIsUri;
private Uri uri;
private boolean imageIsResourceId;
@DrawableRes
private int resourceId;
private ClickableSpan clickSpan;
private String url;
private boolean isBlur;
private float radius;
private Blur style;
private Context mContext;
private SpannableStringBuilder mBuilder;
private Builder(Context context, @NonNull CharSequence text) {
this.mContext = context;
this.text = text;
flag = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE;
foregroundColor = defaultValue;
backgroundColor = defaultValue;
quoteColor = defaultValue;
proportion = -1;
xProportion = -1;
mBuilder = new SpannableStringBuilder();
}
public Builder setFlag(int flag) {
this.flag = flag;
return this;
}
public Builder setForegroundColor(@ColorInt int color) {
this.foregroundColor = color;
return this;
}
public Builder setBackgroundColor(@ColorInt int color) {
this.backgroundColor = color;
return this;
}
public Builder setQuoteColor(@ColorInt int color) {
this.quoteColor = color;
return this;
}
public Builder setLeadingMargin(int first, int rest) {
this.first = first;
this.rest = rest;
isLeadingMargin = true;
return this;
}
public Builder setBullet(int gapWidth, int color) {
this.gapWidth = gapWidth;
bulletColor = color;
isBullet = true;
return this;
}
public Builder setProportion(float proportion) {
this.proportion = proportion;
return this;
}
public Builder setXProportion(float proportion) {
this.xProportion = proportion;
return this;
}
public Builder setStrikethrough() {
this.isStrikethrough = true;
return this;
}
public Builder setUnderline() {
this.isUnderline = true;
return this;
}
public Builder setSuperscript() {
this.isSuperscript = true;
return this;
}
public Builder setSubscript() {
this.isSubscript = true;
return this;
}
public Builder setBold() {
isBold = true;
return this;
}
public Builder setItalic() {
isItalic = true;
return this;
}
public Builder setBoldItalic() {
isBoldItalic = true;
return this;
}
public Builder setFontFamily(@Nullable String fontFamily) {
this.fontFamily = fontFamily;
return this;
}
public Builder setAlign(@Nullable Alignment align) {
this.align = align;
return this;
}
public Builder setBitmap(@NonNull Bitmap bitmap) {
this.bitmap = bitmap;
imageIsBitmap = true;
return this;
}
public Builder setDrawable(@NonNull Drawable drawable) {
this.drawable = drawable;
imageIsDrawable = true;
return this;
}
public Builder setUri(@NonNull Uri uri) {
this.uri = uri;
imageIsUri = true;
return this;
}
public Builder setResourceId(@DrawableRes int resourceId) {
this.resourceId = resourceId;
imageIsResourceId = true;
return this;
}
public Builder setClickSpan(@NonNull ClickableSpan clickSpan) {
this.clickSpan = clickSpan;
return this;
}
public Builder setUrl(@NonNull String url) {
this.url = url;
return this;
}
public Builder setBlur(float radius, Blur style) {
this.radius = radius;
this.style = style;
this.isBlur = true;
return this;
}
public Builder append(@NonNull CharSequence text) {
setSpan();
this.text = text;
return this;
}
public SpannableStringBuilder create() {
setSpan();
return mBuilder;
}
private void setSpan() {
int start = mBuilder.length();
mBuilder.append(this.text);
int end = mBuilder.length();
if (foregroundColor != defaultValue) {
mBuilder.setSpan(new ForegroundColorSpan(foregroundColor), start, end, flag);
foregroundColor = defaultValue;
}
if (backgroundColor != defaultValue) {
mBuilder.setSpan(new BackgroundColorSpan(backgroundColor), start, end, flag);
backgroundColor = defaultValue;
}
if (isLeadingMargin) {
mBuilder.setSpan(new LeadingMarginSpan.Standard(first, rest), start, end, flag);
isLeadingMargin = false;
}
if (quoteColor != defaultValue) {
mBuilder.setSpan(new QuoteSpan(quoteColor), start, end, 0);
quoteColor = defaultValue;
}
if (isBullet) {
mBuilder.setSpan(new BulletSpan(gapWidth, bulletColor), start, end, 0);
isBullet = false;
}
if (proportion != -1) {
mBuilder.setSpan(new RelativeSizeSpan(proportion), start, end, flag);
proportion = -1;
}
if (xProportion != -1) {
mBuilder.setSpan(new ScaleXSpan(xProportion), start, end, flag);
xProportion = -1;
}
if (isStrikethrough) {
mBuilder.setSpan(new StrikethroughSpan(), start, end, flag);
isStrikethrough = false;
}
if (isUnderline) {
mBuilder.setSpan(new UnderlineSpan(), start, end, flag);
isUnderline = false;
}
if (isSuperscript) {
mBuilder.setSpan(new SuperscriptSpan(), start, end, flag);
isSuperscript = false;
}
if (isSubscript) {
mBuilder.setSpan(new SubscriptSpan(), start, end, flag);
isSubscript = false;
}
if (isBold) {
mBuilder.setSpan(new StyleSpan(Typeface.BOLD), start, end, flag);
isBold = false;
}
if (isItalic) {
mBuilder.setSpan(new StyleSpan(Typeface.ITALIC), start, end, flag);
isItalic = false;
}
if (isBoldItalic) {
mBuilder.setSpan(new StyleSpan(Typeface.BOLD_ITALIC), start, end, flag);
isBoldItalic = false;
}
if (fontFamily != null) {
mBuilder.setSpan(new TypefaceSpan(fontFamily), start, end, flag);
fontFamily = null;
}
if (align != null) {
mBuilder.setSpan(new AlignmentSpan.Standard(align), start, end, flag);
align = null;
}
if (imageIsBitmap || imageIsDrawable || imageIsUri || imageIsResourceId) {
if (imageIsBitmap) {
mBuilder.setSpan(new ImageSpan(mContext, bitmap), start, end, flag);
bitmap = null;
imageIsBitmap = false;
} else if (imageIsDrawable) {
mBuilder.setSpan(new ImageSpan(drawable), start, end, flag);
drawable = null;
imageIsDrawable = false;
} else if (imageIsUri) {
mBuilder.setSpan(new ImageSpan(mContext, uri), start, end, flag);
uri = null;
imageIsUri = false;
} else {
mBuilder.setSpan(new ImageSpan(mContext, resourceId), start, end, flag);
resourceId = 0;
imageIsResourceId = false;
}
}
if (clickSpan != null) {
mBuilder.setSpan(clickSpan, start, end, flag);
clickSpan = null;
}
if (url != null) {
mBuilder.setSpan(new URLSpan(url), start, end, flag);
url = null;
}
if (isBlur) {
mBuilder.setSpan(new MaskFilterSpan(new BlurMaskFilter(radius, style)), start, end, flag);
isBlur = false;
}
flag = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE;
}
}
}