Remove unused variables

Author: BielinskiLukasz

src/main/java/com/assertthat/selenium_shutterbug/core/PageSnapshot.java

@@ -5,9 +5,9 @@
 
 package com.assertthat.selenium_shutterbug.core;
 
-import com.assertthat.selenium_shutterbug.utils.web.ElementOutsideViewportException;
 import com.assertthat.selenium_shutterbug.utils.image.ImageProcessor;
 import com.assertthat.selenium_shutterbug.utils.web.Coordinates;
+import com.assertthat.selenium_shutterbug.utils.web.ElementOutsideViewportException;
 import org.openqa.selenium.WebDriver;
 import org.openqa.selenium.WebElement;
 
@@ -51,7 +51,7 @@ public PageSnapshot highlight(WebElement element) {
      */
     public PageSnapshot highlight(WebElement element, Color color, int lineWidth) {
         try {
-            image = ImageProcessor.highlight(image, new Coordinates(element, devicePixelRatio), color, lineWidth);
+            ImageProcessor.highlight(image, new Coordinates(element, devicePixelRatio), color, lineWidth);
         } catch (RasterFormatException rfe) {
             throw new ElementOutsideViewportException(ELEMENT_OUT_OF_VIEWPORT_EX_MESSAGE, rfe);
         }
@@ -93,7 +93,7 @@ public PageSnapshot highlightWithText(WebElement element, Color elementColor, in
        try {
            highlight(element, elementColor, 0);
            Coordinates coords = new Coordinates(element, devicePixelRatio);
-           image = ImageProcessor.addText(image, coords.getX(), coords.getY() - textFont.getSize() / 2, text, textColor, textFont);
+           ImageProcessor.addText(image, coords.getX(), coords.getY() - textFont.getSize() / 2, text, textColor, textFont);
        } catch (RasterFormatException rfe) {
            throw new ElementOutsideViewportException(ELEMENT_OUT_OF_VIEWPORT_EX_MESSAGE, rfe);
        }

src/main/java/com/assertthat/selenium_shutterbug/core/Snapshot.java

@@ -176,7 +176,7 @@ public T withThumbnail(double scale) {
      * @return instance of type Snapshot
      */
     public T monochrome() {
-        this.image = ImageProcessor.convertToGrayAndWhite(this.image);
+        ImageProcessor.convertToGrayAndWhite(this.image);
         return self();
     }
 

src/main/java/com/assertthat/selenium_shutterbug/utils/image/ImageProcessor.java

@@ -10,7 +10,13 @@
 
 import java.awt.*;
 import java.awt.color.ColorSpace;
-import java.awt.image.*;
+import java.awt.image.BufferedImage;
+import java.awt.image.BufferedImageOp;
+import java.awt.image.ColorConvertOp;
+import java.awt.image.ColorModel;
+import java.awt.image.ConvolveOp;
+import java.awt.image.Kernel;
+import java.awt.image.PixelGrabber;
 import java.io.File;
 
 /**
@@ -87,8 +93,7 @@ public static BufferedImage blurExceptArea(BufferedImage sourceImage, Coordinate
     }
 
     public static BufferedImage cropAround(BufferedImage sourceImage, Coordinates coords, int offsetX, int offsetY) {
-        BufferedImage subImage = sourceImage.getSubimage(coords.getX()-offsetX, coords.getY()-offsetY, coords.getWidth()+offsetX*2, coords.getHeight()+offsetY*2);
-        return subImage;
+        return sourceImage.getSubimage(coords.getX() - offsetX, coords.getY() - offsetY, coords.getWidth() + offsetX * 2, coords.getHeight() + offsetY * 2);
     }
 
     public static BufferedImage addTitle(BufferedImage sourceImage, String title, Color color, Font textFont) {

src/main/java/com/assertthat/selenium_shutterbug/utils/web/Browser.java

@@ -8,8 +8,12 @@
 import com.assertthat.selenium_shutterbug.utils.file.FileUtil;
 import com.google.common.collect.ImmutableMap;
 import org.openqa.selenium.Dimension;
-import org.openqa.selenium.*;
+import org.openqa.selenium.JavascriptExecutor;
+import org.openqa.selenium.OutputType;
 import org.openqa.selenium.Point;
+import org.openqa.selenium.TakesScreenshot;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.WebElement;
 import org.openqa.selenium.chrome.ChromeDriver;
 import org.openqa.selenium.remote.CommandInfo;
 import org.openqa.selenium.remote.HttpCommandExecutor;
@@ -210,7 +214,7 @@ public int getViewportHeight() {
     }
 
     public Coordinates getBoundingClientRect(WebElement element) {
-        String script = FileUtil.getJsScript(RELATIVE_COORDS_JS);
+        FileUtil.getJsScript(RELATIVE_COORDS_JS);
         ArrayList<String> list = (ArrayList<String>) executeJsScript(RELATIVE_COORDS_JS, element);
         Point start = new Point(Integer.parseInt(list.get(0)), Integer.parseInt(list.get(1)));
         Dimension size = new Dimension(Integer.parseInt(list.get(2)), Integer.parseInt(list.get(3)));