| /*
* Copyright (C) 2009 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.
*/
packagecom.tao.test;
importandroid.content.Context;
importandroid.text.Spannable;
importandroid.text.SpannableStringBuilder;
importandroid.text.style.ImageSpan;
//import com.android.mms.R;
importjava.util.HashMap;
importjava.util.regex.Matcher;
importjava.util.regex.Pattern;
/**
* A class for annotating a CharSequence with spans to convert textual emoticons
* to graphical ones.
*/
publicclassSmileyParser{
// Singleton stuff
privatestaticSmileyParser sInstance;
publicstaticSmileyParsergetInstance(){returnsInstance;}
publicstaticvoidinit(Contextcontext){
sInstance=newSmileyParser(context);
}
privatefinalContextmContext;
privatefinalString[]mSmileyTexts;
privatefinalPatternmPattern;
privatefinalHashMap<String,Integer>mSmileyToRes;
privateSmileyParser(Contextcontext){
mContext=context;
mSmileyTexts=mContext.getResources().getStringArray(DEFAULT_SMILEY_TEXTS);
mSmileyToRes=buildSmileyToRes();
mPattern=buildPattern();
}
staticclassSmileys{
privatestaticfinalint[]sIconIds={
R.drawable.emo_im_happy,
R.drawable.emo_im_sad,
R.drawable.emo_im_winking,
R.drawable.emo_im_tongue_sticking_out,
R.drawable.emo_im_surprised,
R.drawable.emo_im_kissing,
R.drawable.emo_im_yelling,
R.drawable.emo_im_cool,
R.drawable.emo_im_money_mouth,
R.drawable.emo_im_foot_in_mouth,
R.drawable.emo_im_embarrassed,
R.drawable.emo_im_angel,
R.drawable.emo_im_undecided,
R.drawable.emo_im_crying,
R.drawable.emo_im_lips_are_sealed,
R.drawable.emo_im_laughing,
R.drawable.emo_im_wtf
};
publicstaticintHAPPY=0;
publicstaticintSAD=1;
publicstaticintWINKING=2;
publicstaticintTONGUE_STICKING_OUT=3;
publicstaticintSURPRISED=4;
publicstaticintKISSING=5;
publicstaticintYELLING=6;
publicstaticintCOOL=7;
publicstaticintMONEY_MOUTH=8;
publicstaticintFOOT_IN_MOUTH=9;
publicstaticintEMBARRASSED=10;
publicstaticintANGEL=11;
publicstaticintUNDECIDED=12;
publicstaticintCRYING=13;
publicstaticintLIPS_ARE_SEALED=14;
publicstaticintLAUGHING=15;
publicstaticintWTF=16;
publicstaticintgetSmileyResource(intwhich){
returnsIconIds[which];
}
}
// NOTE: if you change anything about this array, you must make the corresponding change
// to the string arrays: default_smiley_texts and default_smiley_names in res/values/arrays.xml
publicstaticfinalint[]DEFAULT_SMILEY_RES_IDS={
Smileys.getSmileyResource(Smileys.HAPPY),// 0
Smileys.getSmileyResource(Smileys.SAD),// 1
Smileys.getSmileyResource(Smileys.WINKING),// 2
Smileys.getSmileyResource(Smileys.TONGUE_STICKING_OUT),// 3
Smileys.getSmileyResource(Smileys.SURPRISED),// 4
Smileys.getSmileyResource(Smileys.KISSING),// 5
Smileys.getSmileyResource(Smileys.YELLING),// 6
Smileys.getSmileyResource(Smileys.COOL),// 7
Smileys.getSmileyResource(Smileys.MONEY_MOUTH),// 8
Smileys.getSmileyResource(Smileys.FOOT_IN_MOUTH),// 9
Smileys.getSmileyResource(Smileys.EMBARRASSED),// 10
Smileys.getSmileyResource(Smileys.ANGEL),// 11
Smileys.getSmileyResource(Smileys.UNDECIDED),// 12
Smileys.getSmileyResource(Smileys.CRYING),// 13
Smileys.getSmileyResource(Smileys.LIPS_ARE_SEALED),// 14
Smileys.getSmileyResource(Smileys.LAUGHING),// 15
Smileys.getSmileyResource(Smileys.WTF),// 16
};
publicstaticfinalintDEFAULT_SMILEY_TEXTS=R.array.default_smiley_texts;
publicstaticfinalintDEFAULT_SMILEY_NAMES=R.array.default_smiley_names;
/**
* Builds the hashtable we use for mapping the string version
* of a smiley (e.g. ":-)") to a resource ID for the icon version.
*/
privateHashMap<String,Integer>buildSmileyToRes(){
if(DEFAULT_SMILEY_RES_IDS.length!=mSmileyTexts.length){
// Throw an exception if someone updated DEFAULT_SMILEY_RES_IDS
// and failed to update arrays.xml
thrownewIllegalStateException("Smiley resource ID/text mismatch");
}
HashMap<String,Integer>smileyToRes=
newHashMap<String,Integer>(mSmileyTexts.length);
for(inti=0;i<mSmileyTexts.length;i++){
smileyToRes.put(mSmileyTexts[i],DEFAULT_SMILEY_RES_IDS[i]);
}
returnsmileyToRes;
}
/**
* Builds the regular expression we use to find smileys in {@link #addSmileySpans}.
*/
privatePatternbuildPattern(){
// Set the StringBuilder capacity with the assumption that the average
// smiley is 3 characters long.
StringBuilderpatternString=newStringBuilder(mSmileyTexts.length*3);
// Build a regex that looks like (:-)|:-(|...), but escaping the smilies
// properly so they will be interpreted literally by the regex matcher.
patternString.append('(');
for(Strings:mSmileyTexts){
patternString.append(Pattern.quote(s));
patternString.append('|');
}
// Replace the extra '|' with a ')'
patternString.replace(patternString.length()-1,patternString.length(),")");
returnPattern.compile(patternString.toString());
}
/**
* Adds ImageSpans to a CharSequence that replace textual emoticons such
* as :-) with a graphical version.
*
* @param text A CharSequence possibly containing emoticons
* @return A CharSequence annotated with ImageSpans covering any
* recognized emoticons.
*/
publicCharSequenceaddSmileySpans(CharSequencetext){
SpannableStringBuilder builder=newSpannableStringBuilder(text);
Matchermatcher=mPattern.matcher(text);
while(matcher.find()){
intresId=mSmileyToRes.get(matcher.group());
builder.setSpan(newImageSpan(mContext,resId),
matcher.start(),matcher.end(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
returnbuilder;
}
}
|
