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Commit 62a928a

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author
Lakmal Weerasekara
committed
add ReadMe description and flood fill algorithm
1 parent f856e86 commit 62a928a

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4 files changed

+153
-18
lines changed

4 files changed

+153
-18
lines changed

‎app/build.gradle

+13-1
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@@ -1,11 +1,12 @@
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apply plugin: 'com.android.application'
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apply plugin: 'android-apt'
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android {
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compileSdkVersion 25
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buildToolsVersion "25.0.2"
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defaultConfig {
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applicationId "lakmalz.git.colouringimagefloodfill"
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minSdkVersion 19
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minSdkVersion 17
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targetSdkVersion 25
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versionCode 1
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versionName "1.0"
@@ -17,6 +18,12 @@ android {
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proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
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}
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}
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externalNativeBuild {
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ndkBuild {
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path 'src/main/cpp/Android.mk'
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}
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}
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}
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dependencies {
@@ -26,4 +33,9 @@ dependencies {
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})
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compile 'com.android.support:appcompat-v7:25.1.0'
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testCompile 'junit:junit:4.12'
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compile 'com.jakewharton:butterknife:8.2.1'
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apt 'com.jakewharton:butterknife-compiler:8.2.1'
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compile 'org.xdty.preference:color-picker:0.0.4'
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}

‎app/src/main/java/lakmalz/git/colouringimagefloodfill/ColorActivity.java

+122-3
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@@ -1,13 +1,132 @@
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package lakmalz.git.colouringimagefloodfill;
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3-
import android.support.v7.app.AppCompatActivity;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.graphics.Color;
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import android.graphics.Rect;
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import android.graphics.drawable.BitmapDrawable;
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import android.os.Bundle;
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import android.support.v4.content.ContextCompat;
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import android.support.v7.app.AppCompatActivity;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import org.xdty.preference.colorpicker.ColorPickerDialog;
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import org.xdty.preference.colorpicker.ColorPickerSwatch;
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import butterknife.BindView;
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import butterknife.ButterKnife;
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import butterknife.OnClick;
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public class ColorActivity extends BaseActivity {
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@BindView(R.id.ivImage)
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TouchImageView ivImage;
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private int mSelectedColor;
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private Bitmap currentBitmap;
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private Bitmap originalBitmap;
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private int currentX, currentY, currentTolerance = 40;
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static {
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System.loadLibrary("jnibitmap");
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}
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public class ColorActivity extends AppCompatActivity {
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public static native void floodFill(Bitmap bitmap, int x, int y, int fillColor, int targetColor, int tolerance);
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@Override
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protected int getLayoutId() {
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return R.layout.activity_main;
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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ButterKnife.bind(this);
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BitmapFactory.Options o = new BitmapFactory.Options();
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o.inScaled = false;
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originalBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.four, o);
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ivImage.setImageBitmap(originalBitmap);
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currentBitmap = originalBitmap.copy(originalBitmap.getConfig(), true);
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ivImage.setOnTouchListener(new View.OnTouchListener() {
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@Override
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public boolean onTouch(View v, MotionEvent event) {
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switch (event.getAction()) {
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case MotionEvent.ACTION_DOWN:
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currentX = (int) event.getX()/4 ;
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currentY = (int) event.getY()/4;
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//--------------------------
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//--------------------------
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BitmapDrawable drawable = (BitmapDrawable) ((TouchImageView)v).getDrawable();
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Rect imageBounds = new Rect();
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ivImage.getDrawingRect(imageBounds);
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// original height and width of the bitmap
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int intrinsicHeight = drawable.getIntrinsicHeight();
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int intrinsicWidth = drawable.getIntrinsicWidth();
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// height and width of the visible (scaled) image
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int scaledHeight = imageBounds.height();
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int scaledWidth = imageBounds.width();
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// Find the ratio of the original image to the scaled image
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// Should normally be equal unless a disproportionate scaling
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// (e.g. fitXY) is used.
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float heightRatio = (float) intrinsicHeight / scaledHeight;
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float widthRatio = (float) intrinsicWidth / scaledWidth;
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// do whatever magic to get your touch point
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// MotionEvent event;
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// get the distance from the left and top of the image bounds
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float scaledImageOffsetX = event.getX() - imageBounds.left;
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float scaledImageOffsetY = event.getY() - imageBounds.top;
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// scale these distances according to the ratio of your scaling
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// For example, if the original image is 1.5x the size of the scaled
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// image, and your offset is (10, 20), your original image offset
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// values should be (15, 30).
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int originalImageOffsetX = Math.round(scaledImageOffsetX * widthRatio);
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int originalImageOffsetY = Math.round(scaledImageOffsetY * heightRatio);
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//--------------------------
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Log.e("cxz", "xxx" + currentX + " " + currentY + " " + originalBitmap.getWidth() + " " + originalBitmap.getHeight());
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currentBitmap = originalBitmap.copy(originalBitmap.getConfig(), true);
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floodFill(currentBitmap, currentX, currentY, mSelectedColor/*Color.YELLOW*/, Color.BLACK, 50);
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ivImage.setImageBitmap(currentBitmap);
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break;
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}
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return true;
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}
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});
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}
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@OnClick(R.id.btn_select_color)
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public void onClickTest() {
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//Toast.makeText(this, MainActivity.getTestString(), Toast.LENGTH_LONG).show();
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mSelectedColor = ContextCompat.getColor(this, R.color.flamingo);
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int[] mColors = getResources().getIntArray(R.array.default_rainbow);
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ColorPickerDialog dialog = ColorPickerDialog.newInstance(R.string.color_picker_default_title,
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mColors,
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mSelectedColor,
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5, // Number of columns
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ColorPickerDialog.SIZE_SMALL);
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dialog.setOnColorSelectedListener(new ColorPickerSwatch.OnColorSelectedListener() {
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@Override
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public void onColorSelected(int color) {
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mSelectedColor = color;
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}
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});
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dialog.show(getFragmentManager(), "color_dialog_test");
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}
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}

‎app/src/main/res/layout/activity_main.xml

+17-13
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@@ -1,18 +1,22 @@
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<?xml version="1.0" encoding="utf-8"?>
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<RelativeLayout
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<LinearLayout
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xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:id="@+id/activity_main"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:paddingBottom="@dimen/activity_vertical_margin"
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android:paddingLeft="@dimen/activity_horizontal_margin"
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android:paddingRight="@dimen/activity_horizontal_margin"
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android:paddingTop="@dimen/activity_vertical_margin"
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tools:context="lakmalz.git.colouringimagefloodfill.ColorActivity">
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android:orientation="vertical">
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Hello World!"/>
18-
</RelativeLayout>
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<lakmalz.git.colouringimagefloodfill.TouchImageView
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android:id="@+id/ivImage"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:layout_weight="1"
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android:src="@drawable/one"/>
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<Button
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android:id="@+id/btn_select_color"
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android:layout_gravity="center"
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android:layout_width="216dp"
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android:visibility="visible"
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android:text="Select color"
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android:layout_height="48dp"/>
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</LinearLayout>

‎build.gradle

+1-1
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@@ -6,7 +6,7 @@ buildscript {
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}
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dependencies {
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classpath 'com.android.tools.build:gradle:2.2.3'
9-
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classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
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// NOTE: Do not place your application dependencies here; they belong
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// in the individual module build.gradle files
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}

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