├── .gitignore ├── LICENSE ├── README.md ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── quadtreeandroidimpl ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── ua │ │ └── com │ │ └── kurai │ │ └── quadtreeandroid │ │ └── ExampleInstrumentedTest.java │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── ua │ │ │ └── com │ │ │ └── kurai │ │ │ └── quadtreeandroid │ │ │ ├── OnQuadDrawListener.java │ │ │ ├── OnQuadTreeSplitComplete.java │ │ │ ├── QuadTreeImageView.java │ │ │ ├── QuadTreeRect.java │ │ │ └── QuadTreeSplitter.java │ └── res │ │ └── values │ │ └── strings.xml │ └── test │ └── java │ └── ua │ └── com │ └── kurai │ └── quadtreeandroid │ └── ExampleUnitTest.java ├── sample ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── ua │ │ └── com │ │ └── kurai │ │ └── myapplication │ │ └── MainActivity.java │ └── res │ ├── drawable │ └── peach.jpg │ ├── layout │ └── activity_main.xml │ ├── mipmap-hdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-mdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ └── values │ ├── colors.xml │ ├── strings.xml │ └── styles.xml └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # Intellij 36 | *.iml 37 | .idea/ 38 | .idea/workspace.xml 39 | 40 | # Keystore files 41 | *.jks 42 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # QuadTreeAndroid 2 | 3 | ![alt tag](http://i.imgur.com/9fz1O2O.gif) 4 | ![alt tag](http://i.imgur.com/r1wfHfE.gif) 5 | 6 | Library that helps to implement the QuadTree in android, by using splitting images 7 | 8 | ### Download 9 | 10 | Download via Gradle: 11 | 12 | ```gradle 13 | compile 'com.github.slavakyrai:quadtreeandroidimpl:0.1.1' 14 | ``` 15 | or Maven: 16 | ```xml 17 | 18 | com.github.slavakyrai 19 | quadtreeandroidimpl 20 | 0.1.1 21 | pom 22 | 23 | ``` 24 | ### Usage 25 | 26 | Create an instance of the QuadSplitter class. Pass the bitmap and OnQuadTreeSplitComplete callback in the constructor. The result will be returned as list of QuadTreeRect, in another thread in onSplitComplete().Use the method start() to start splitting image. 27 | ```java 28 | QuadTreeSplitter quadTreeSplitter = new QuadTreeSplitter(mutableBitmap, new OnQuadTreeSplitComplete() { 29 | @Override 30 | public void onSplitComplete(List quadTreeRects) { 31 | Log.d(TAG, "onSplitComplete: " + quadTreeRects.size()); 32 | } 33 | }); 34 | quadTreeSplitter.start(); 35 | ``` 36 | You can customize the work of the QuadSplitter class by using methods setMinQuadAreaSize() and setMinColorDistance(). 37 | ```java 38 | quadTreeSplitter.setMinQuadAreaSize(50); 39 | quadTreeSplitter.setMinColorDistance(5); 40 | ``` 41 | If you want to display the separeting image process, use the QuadTreeImageView class, which is extended by the ImageView. For than you must use the next methods: setImageBitmap() method of the QuadTreeImageView class, and setOnQuadDrawListener() method of the QuadTreeSplitter class. You can enable or disable the outlines of the rectangles borders, when you use the setDrawGreed() method. 42 | ```java 43 | QuadTreeImageView imageView = (QuadTreeImageView) findViewById(R.id.qtImgView); 44 | imageView.setImageBitmap(mutableBitmap); 45 | quadTreeSplitter.setOnQuadDrawListener(imageView); 46 | imageView.setDrawGreed(true); 47 | ``` 48 | Look [sample] for more information 49 | 50 | ### License 51 | 52 | Licensed under the Apache License, Version 2.0 (the "License"); 53 | you may not use this file except in compliance with the License. 54 | You may obtain a copy of the License at 55 | 56 | http://www.apache.org/licenses/LICENSE-2.0 57 | 58 | Unless required by applicable law or agreed to in writing, software 59 | distributed under the License is distributed on an "AS IS" BASIS, 60 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 61 | See the License for the specific language governing permissions and 62 | limitations under the License. 63 | 64 | 65 | [sample]: https://github.com/SlavaKyrai/QuadTreeAndroid/tree/master/sample 66 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:2.3.0' 9 | classpath 'com.novoda:bintray-release:0.3.4' 10 | 11 | // NOTE: Do not place your application dependencies here; they belong 12 | // in the individual module build.gradle files 13 | } 14 | } 15 | 16 | allprojects { 17 | repositories { 18 | jcenter() 19 | } 20 | } 21 | 22 | task clean(type: Delete) { 23 | delete rootProject.buildDir 24 | } 25 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | org.gradle.jvmargs=-Xmx1536m 13 | 14 | # When configured, Gradle will run in incubating parallel mode. 15 | # This option should only be used with decoupled projects. More details, visit 16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 17 | # org.gradle.parallel=true 18 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SlavaKyrai/QuadTreeAndroid/a50d8d1ebed246f0b95a898d1ebe55c11b14311c/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Thu Apr 13 14:39:17 EEST 2017 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | apply plugin: 'com.novoda.bintray-release' 3 | 4 | android { 5 | compileSdkVersion 25 6 | buildToolsVersion "25.0.2" 7 | 8 | defaultConfig { 9 | minSdkVersion 17 10 | targetSdkVersion 25 11 | versionCode 1 12 | versionName "1.0" 13 | 14 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 15 | 16 | } 17 | buildTypes { 18 | release { 19 | minifyEnabled false 20 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 21 | } 22 | } 23 | } 24 | 25 | publish { 26 | groupId = 'com.github.slavakyrai' 27 | artifactId = 'quadtreeandroidimpl' 28 | publishVersion = '0.1.1' 29 | desc = 'Library that shows implementation of quad tree in android.' 30 | licences = ['Apache-2.0'] 31 | uploadName='QuadTreeAndroid' 32 | website = 'https://github.com/SlavaKyrai/QuadTreeAndroid.git' 33 | } 34 | 35 | dependencies { 36 | compile fileTree(dir: 'libs', include: ['*.jar']) 37 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 38 | exclude group: 'com.android.support', module: 'support-annotations' 39 | }) 40 | compile 'com.android.support:appcompat-v7:25.2.0' 41 | testCompile 'junit:junit:4.12' 42 | } 43 | 44 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/slava/Android/Sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | 19 | # Uncomment this to preserve the line number information for 20 | # debugging stack traces. 21 | #-keepattributes SourceFile,LineNumberTable 22 | 23 | # If you keep the line number information, uncomment this to 24 | # hide the original source file name. 25 | #-renamesourcefileattribute SourceFile 26 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/androidTest/java/ua/com/kurai/quadtreeandroid/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("ua.com.kurai.quadtreeandroid.test", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 4 | 5 | 8 | 9 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/java/ua/com/kurai/quadtreeandroid/OnQuadDrawListener.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import android.graphics.Rect; 4 | 5 | 6 | interface OnQuadDrawListener { 7 | /** 8 | * @param rect 9 | * @param averageColor average color inside rect. 10 | */ 11 | void onQuadDraw(Rect rect, int averageColor); 12 | } 13 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/java/ua/com/kurai/quadtreeandroid/OnQuadTreeSplitComplete.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import java.util.List; 4 | 5 | 6 | public interface OnQuadTreeSplitComplete { 7 | /** 8 | * @param quadTreeRects result list 9 | */ 10 | void onSplitComplete(List quadTreeRects); 11 | } 12 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/java/ua/com/kurai/quadtreeandroid/QuadTreeImageView.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import android.content.Context; 4 | import android.graphics.Bitmap; 5 | import android.graphics.Canvas; 6 | import android.graphics.Color; 7 | import android.graphics.Paint; 8 | import android.graphics.Rect; 9 | import android.util.AttributeSet; 10 | 11 | 12 | public class QuadTreeImageView extends android.support.v7.widget.AppCompatImageView implements OnQuadDrawListener { 13 | 14 | private Canvas canvas; 15 | private Paint paint; 16 | private boolean drawGreed; 17 | 18 | public void setDrawGreed(boolean drawGreed) { 19 | this.drawGreed = drawGreed; 20 | } 21 | 22 | public QuadTreeImageView(Context context) { 23 | super(context); 24 | setPaintConfig(); 25 | } 26 | 27 | public QuadTreeImageView(Context context, AttributeSet attrs) { 28 | super(context, attrs); 29 | setPaintConfig(); 30 | } 31 | 32 | public QuadTreeImageView(Context context, AttributeSet attrs, int defStyleAttr) { 33 | super(context, attrs, defStyleAttr); 34 | setPaintConfig(); 35 | } 36 | 37 | @Override 38 | public void setImageBitmap(Bitmap bm) { 39 | super.setImageBitmap(bm); 40 | canvas = new Canvas(bm); 41 | } 42 | 43 | 44 | @Override 45 | protected void onDraw(Canvas canvas) { 46 | super.onDraw(canvas); 47 | postInvalidate(); 48 | 49 | } 50 | 51 | @Override 52 | public void onQuadDraw(Rect rect, int averageColor) { 53 | paint.setStyle(Paint.Style.FILL); 54 | paint.setColor(averageColor); 55 | canvas.drawRect(rect, paint); 56 | 57 | if (drawGreed) { 58 | paint.setStyle(Paint.Style.STROKE); 59 | paint.setColor(Color.BLACK); 60 | canvas.drawRect(rect, paint); 61 | } 62 | 63 | postInvalidate(); 64 | } 65 | 66 | private void setPaintConfig() { 67 | paint = new Paint(); 68 | paint.setAntiAlias(true); 69 | paint.setFlags(Paint.ANTI_ALIAS_FLAG); 70 | paint.setStrokeWidth(1); 71 | } 72 | 73 | } 74 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/java/ua/com/kurai/quadtreeandroid/QuadTreeRect.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import android.graphics.Rect; 4 | 5 | import java.util.ArrayList; 6 | import java.util.List; 7 | 8 | 9 | public class QuadTreeRect { 10 | 11 | private Rect mainRect; 12 | private QuadTreeRect leftTop; 13 | private QuadTreeRect rightTop; 14 | private QuadTreeRect leftBottom; 15 | private QuadTreeRect rightBottom; 16 | private int colorDistance; 17 | 18 | QuadTreeRect(Rect mainRect) { 19 | this.mainRect = mainRect; 20 | } 21 | 22 | 23 | void setColorDistance(int colorDistance) { 24 | this.colorDistance = colorDistance; 25 | } 26 | 27 | private QuadTreeRect(int left, int top, int right, int bottom) { 28 | this.mainRect = new Rect(left, top, right, bottom); 29 | } 30 | 31 | int getColorDistance() { 32 | return colorDistance; 33 | } 34 | 35 | /** 36 | * @return ArrayList of rect childs 37 | */ 38 | List getChilds() { 39 | List childs = new ArrayList<>(); 40 | childs.add(this.getLeftTop()); 41 | childs.add(this.getLeftBottom()); 42 | childs.add(this.getRightBottom()); 43 | childs.add(this.getRightTop()); 44 | return childs; 45 | } 46 | 47 | /** 48 | * Create 4 Childs of rect 49 | */ 50 | private void createDescendants() { 51 | leftTop = new QuadTreeRect(mainRect.left, mainRect.top, mainRect.centerX(), mainRect.centerY()); 52 | rightTop = new QuadTreeRect(mainRect.centerX(), mainRect.top, mainRect.right, mainRect.centerY()); 53 | leftBottom = new QuadTreeRect(mainRect.left, mainRect.centerY(), mainRect.centerX(), mainRect.bottom); 54 | rightBottom = new QuadTreeRect(mainRect.centerX(), mainRect.centerY(), mainRect.right, mainRect.bottom); 55 | 56 | } 57 | 58 | /** 59 | * @return graphic rect; 60 | */ 61 | Rect getGraphicRect() { 62 | return mainRect; 63 | } 64 | 65 | private QuadTreeRect getLeftTop() { 66 | if (leftTop == null) createDescendants(); 67 | return leftTop; 68 | } 69 | 70 | private QuadTreeRect getRightTop() { 71 | if (rightTop == null) createDescendants(); 72 | return rightTop; 73 | } 74 | 75 | private QuadTreeRect getLeftBottom() { 76 | if (leftBottom == null) createDescendants(); 77 | return leftBottom; 78 | } 79 | 80 | private QuadTreeRect getRightBottom() { 81 | if (rightBottom == null) createDescendants(); 82 | return rightBottom; 83 | } 84 | } 85 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/java/ua/com/kurai/quadtreeandroid/QuadTreeSplitter.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import android.graphics.Bitmap; 4 | import android.graphics.Color; 5 | import android.graphics.Rect; 6 | import android.support.annotation.IntRange; 7 | 8 | import java.util.ArrayList; 9 | import java.util.List; 10 | 11 | 12 | public class QuadTreeSplitter extends Thread { 13 | 14 | private int minQuadAreaSize = 100; // default 100, means quad 10x10 pixels 15 | private int minColorDistance = 10; // minimal color distance for splitting 16 | private int[][] pixelsBitmap; 17 | private List quadsInWorkList; 18 | private List resultQuadsList; 19 | private OnQuadDrawListener onQuadDraw; 20 | private OnQuadTreeSplitComplete onQuadTreeSplitComplete; 21 | private Bitmap bitmap; 22 | 23 | 24 | public QuadTreeSplitter(Bitmap bitmap, OnQuadTreeSplitComplete onQuadTreeSplitComplete) { 25 | this.onQuadTreeSplitComplete = onQuadTreeSplitComplete; 26 | this.quadsInWorkList = new ArrayList<>(); 27 | this.resultQuadsList = new ArrayList<>(); 28 | this.bitmap = bitmap; 29 | pixelsBitmap = getPixelsFromBitmap(bitmap); 30 | } 31 | 32 | 33 | /** 34 | * The smaller color distance, the better the output image, but longer splitting. 35 | * recommended value about 5-10 36 | */ 37 | public void setMinColorDistance(@IntRange(from = 1, to = Integer.MAX_VALUE) int minColorDistance) { 38 | this.minColorDistance = minColorDistance; 39 | } 40 | 41 | 42 | /** 43 | * The smaller the rectangle, the better the output image, but longer splitting. 44 | * recommended value about 100 45 | */ 46 | public void setMinQuadAreaSize(@IntRange(from = 1, to = Integer.MAX_VALUE) int minQuadAreaSize) { 47 | this.minQuadAreaSize = minQuadAreaSize; 48 | } 49 | 50 | public void setOnQuadDrawListener(OnQuadDrawListener onQuadDraw) { 51 | this.onQuadDraw = onQuadDraw; 52 | } 53 | 54 | /** 55 | * get pixel from bitmap and convert it in to two-dimensional array 56 | */ 57 | private int[][] getPixelsFromBitmap(Bitmap bitmap) { 58 | int[] imagePixels = new int[bitmap.getWidth() * bitmap.getHeight()]; 59 | int[][] pixelsBitmap = new int[bitmap.getWidth()][bitmap.getHeight()]; 60 | 61 | bitmap.getPixels(imagePixels, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight()); 62 | 63 | for (int i = 0; i < bitmap.getWidth(); i++) { 64 | for (int j = 0; j < bitmap.getHeight(); j++) { 65 | pixelsBitmap[i][j] = imagePixels[(j * bitmap.getWidth()) + i]; 66 | } 67 | } 68 | return pixelsBitmap; 69 | } 70 | 71 | 72 | 73 | @Override 74 | public void run() { 75 | QuadTreeRect quadTreeRect = new QuadTreeRect(new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight())); 76 | // create first 4 childs and add it to work array 77 | createTreeChilds(quadTreeRect); 78 | while (quadsInWorkList.size() > 0) { 79 | findLargestColorDist(); 80 | } 81 | onQuadTreeSplitComplete.onSplitComplete(resultQuadsList); 82 | } 83 | 84 | 85 | /** 86 | * Create 4 childs of rect 87 | */ 88 | private void createTreeChilds(QuadTreeRect quadTreeRect) { 89 | List treeChilds = quadTreeRect.getChilds(); 90 | for (int i = 0; i < treeChilds.size(); i++) { 91 | Rect graphicRect = treeChilds.get(i).getGraphicRect(); 92 | int colorDistance = calcColorDistance(treeChilds.get(i).getGraphicRect()); 93 | int averageColor = averageColor(graphicRect); 94 | treeChilds.get(i).setColorDistance(colorDistance); 95 | // check callback and draw rect 96 | if (onQuadDraw != null) { 97 | onQuadDraw.onQuadDraw(graphicRect, averageColor); 98 | } 99 | if ( (colorDistance <= minColorDistance) || (graphicRect.width() * graphicRect.height() < minQuadAreaSize)) { 100 | // add rect to result array, which be returned 101 | resultQuadsList.add(treeChilds.get(i)); 102 | } else { 103 | // rectangle should be divided into smaller parts 104 | quadsInWorkList.add(treeChilds.get(i)); 105 | } 106 | } 107 | } 108 | 109 | 110 | /** 111 | * @return average color inside rect 112 | */ 113 | private int averageColor(Rect rect) { 114 | int redSum = 0; 115 | int greenSum = 0; 116 | int blueSum = 0; 117 | 118 | for (int i = rect.left; i < rect.right; i++) { 119 | for (int j = rect.top; j < rect.bottom; j++) { 120 | redSum += Color.red(pixelsBitmap[i][j]); 121 | greenSum += Color.green(pixelsBitmap[i][j]); 122 | blueSum += Color.blue(pixelsBitmap[i][j]); 123 | } 124 | } 125 | int area = rect.width() * rect.height(); 126 | return Color.rgb(redSum / area, greenSum / area, blueSum / area); 127 | } 128 | 129 | 130 | /** 131 | * Calc color distance between average color in rect 132 | * and each pixel 133 | */ 134 | private int calcColorDistance(Rect rect) { 135 | int averageColor = averageColor(rect); 136 | int red = Color.red(averageColor); 137 | int green = Color.green(averageColor); 138 | int blue = Color.blue(averageColor); 139 | int colorSum = 0; 140 | 141 | // Calculates the distance 142 | for (int i = rect.left; i < rect.right; i++) { 143 | for (int j = rect.top; j < rect.bottom; j++) { 144 | int cellColor = pixelsBitmap[i][j]; 145 | colorSum += Math.abs(red - Color.red(cellColor)); 146 | colorSum += Math.abs(green - Color.green(cellColor)); 147 | colorSum += Math.abs(blue - Color.blue(cellColor)); 148 | } 149 | } 150 | 151 | // Calculates distance, and returns the result. 152 | return colorSum / (3 * (rect.width() * rect.height())); //divide by 3, because use R. G. B. 153 | } 154 | 155 | 156 | /** 157 | * find rect with largest color distance 158 | * remove it from list and split it. 159 | */ 160 | private void findLargestColorDist() { 161 | QuadTreeRect largestQuad = quadsInWorkList.get(0); 162 | 163 | for (int i = 1; i < quadsInWorkList.size(); i++) { 164 | if (quadsInWorkList.get(i).getColorDistance() >= largestQuad.getColorDistance()) { 165 | largestQuad = quadsInWorkList.get(i); 166 | } 167 | } 168 | // Removing an element from an array. When the size of the array becomes 0, calculations will stop 169 | quadsInWorkList.remove(largestQuad); 170 | createTreeChilds(largestQuad); 171 | } 172 | 173 | 174 | } 175 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | QuadTreeAndroid 3 | 4 | -------------------------------------------------------------------------------- /quadtreeandroidimpl/src/test/java/ua/com/kurai/quadtreeandroid/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.quadtreeandroid; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /sample/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /sample/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 25 5 | buildToolsVersion "25.0.2" 6 | defaultConfig { 7 | applicationId "ua.com.kurai.myapplication" 8 | minSdkVersion 17 9 | targetSdkVersion 25 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 25 | exclude group: 'com.android.support', module: 'support-annotations' 26 | }) 27 | compile 'com.android.support:appcompat-v7:25.2.0' 28 | compile 'com.android.support.constraint:constraint-layout:1.0.1' 29 | 30 | 31 | compile project(':quadtreeandroidimpl') 32 | testCompile 'junit:junit:4.12' 33 | } 34 | -------------------------------------------------------------------------------- /sample/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/slava/Android/Sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | 19 | # Uncomment this to preserve the line number information for 20 | # debugging stack traces. 21 | #-keepattributes SourceFile,LineNumberTable 22 | 23 | # If you keep the line number information, uncomment this to 24 | # hide the original source file name. 25 | #-renamesourcefileattribute SourceFile 26 | -------------------------------------------------------------------------------- /sample/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /sample/src/main/java/ua/com/kurai/myapplication/MainActivity.java: -------------------------------------------------------------------------------- 1 | package ua.com.kurai.myapplication; 2 | 3 | import android.graphics.Bitmap; 4 | import android.graphics.BitmapFactory; 5 | import android.os.Bundle; 6 | import android.support.v7.app.AppCompatActivity; 7 | import android.util.Log; 8 | 9 | import java.util.List; 10 | 11 | import ua.com.kurai.quadtreeandroid.OnQuadTreeSplitComplete; 12 | import ua.com.kurai.quadtreeandroid.QuadTreeImageView; 13 | import ua.com.kurai.quadtreeandroid.QuadTreeRect; 14 | import ua.com.kurai.quadtreeandroid.QuadTreeSplitter; 15 | 16 | 17 | public class MainActivity extends AppCompatActivity { 18 | 19 | private final String TAG = this.getClass().getSimpleName(); 20 | 21 | @Override 22 | protected void onCreate(Bundle savedInstanceState) { 23 | super.onCreate(savedInstanceState); 24 | setContentView(R.layout.activity_main); 25 | 26 | getSupportActionBar().setTitle("QuadTree"); 27 | 28 | Bitmap mutableBitmap; 29 | BitmapFactory.Options options = new BitmapFactory.Options(); 30 | final Bitmap bm = BitmapFactory.decodeResource(getResources(), R.drawable.peach, options); 31 | mutableBitmap = bm.copy(Bitmap.Config.ARGB_8888, true); 32 | 33 | 34 | 35 | QuadTreeSplitter quadTreeSplitter = new QuadTreeSplitter(mutableBitmap, new OnQuadTreeSplitComplete() { 36 | @Override 37 | public void onSplitComplete(List quadTreeRects) { 38 | Log.d(TAG, "onSplitComplete: " + quadTreeRects.size()); 39 | } 40 | }); 41 | quadTreeSplitter.start(); 42 | quadTreeSplitter.setMinQuadAreaSize(50); 43 | quadTreeSplitter.setMinColorDistance(5); 44 | 45 | QuadTreeImageView imageView = (QuadTreeImageView) findViewById(R.id.qtImgView); 46 | imageView.setImageBitmap(mutableBitmap); 47 | quadTreeSplitter.setOnQuadDrawListener(imageView); 48 | imageView.setDrawGreed(true); 49 | 50 | } 51 | } 52 | 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Application 3 | 4 | -------------------------------------------------------------------------------- /sample/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':sample', ':quadtreeandroidimpl' 2 | --------------------------------------------------------------------------------