src/java.desktop/share/classes/sun/java2d/SunGraphicsEnvironment.java

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 31,74 ****
  import java.awt.Graphics2D;
  import java.awt.GraphicsConfiguration;
  import java.awt.GraphicsDevice;
  import java.awt.GraphicsEnvironment;
  import java.awt.Insets;
  import java.awt.Rectangle;
  import java.awt.Toolkit;
! import java.awt.font.TextAttribute;
  import java.awt.image.BufferedImage;
  import java.awt.peer.ComponentPeer;
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.FileInputStream;
- import java.io.FilenameFilter;
  import java.io.InputStreamReader;
! import java.io.IOException;
! import java.text.AttributedCharacterIterator;
! import java.util.ArrayList;
! import java.util.HashSet;
! import java.util.Iterator;
  import java.util.Locale;
- import java.util.Map;
- import java.util.NoSuchElementException;
- import java.util.Set;
- import java.util.StringTokenizer;
  import java.util.TreeMap;
! import java.util.Vector;
! import java.util.concurrent.ConcurrentHashMap;
! import sun.awt.AppContext;
  import sun.awt.DisplayChangedListener;
- import sun.awt.FontConfiguration;
  import sun.awt.SunDisplayChanger;
- import sun.font.CompositeFontDescriptor;
- import sun.font.Font2D;
  import sun.font.FontManager;
  import sun.font.FontManagerFactory;
  import sun.font.FontManagerForSGE;
! import sun.font.NativeFont;
! import java.security.AccessController;
  import sun.security.action.GetPropertyAction;
  
  /**
   * This is an implementation of a GraphicsEnvironment object for the
   * default local GraphicsEnvironment.
--- 31,60 ----
  import java.awt.Graphics2D;
  import java.awt.GraphicsConfiguration;
  import java.awt.GraphicsDevice;
  import java.awt.GraphicsEnvironment;
  import java.awt.Insets;
+ import java.awt.Point;
  import java.awt.Rectangle;
  import java.awt.Toolkit;
! import java.awt.geom.AffineTransform;
  import java.awt.image.BufferedImage;
  import java.awt.peer.ComponentPeer;
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.InputStreamReader;
! import java.security.AccessController;
  import java.util.Locale;
  import java.util.TreeMap;
! 
  import sun.awt.DisplayChangedListener;
  import sun.awt.SunDisplayChanger;
  import sun.font.FontManager;
  import sun.font.FontManagerFactory;
  import sun.font.FontManagerForSGE;
! import sun.java2d.pipe.Region;
  import sun.security.action.GetPropertyAction;
  
  /**
   * This is an implementation of a GraphicsEnvironment object for the
   * default local GraphicsEnvironment.
*** 387,392 ****
--- 373,422 ----
              return scale <= 0 ? -1 : scale / units;
          } catch (NumberFormatException ignored) {
              return -1;
          }
      }
+ 
+     /**
+      * Returns the graphics configuration which bounds contain the given point.
+      *
+      * @param  current the default configuration which is checked in the first
+      *         place
+      * @param  x the x coordinate of the given point
+      * @param  y the y coordinate of the given point
+      * @return the graphics configuration
+      */
+     public static GraphicsConfiguration getGraphicsConfigurationAtPoint(
+             GraphicsConfiguration current, double x, double y) {
+         if (current.getBounds().contains(x, y)) {
+             return current;
+         }
+         GraphicsEnvironment env = getLocalGraphicsEnvironment();
+         for (GraphicsDevice device : env.getScreenDevices()) {
+             GraphicsConfiguration config = device.getDefaultConfiguration();
+             if (config.getBounds().contains(x, y)) {
+                 return config;
+             }
+         }
+         return current;
+     }
+ 
+     /**
+      * Converts coordinates from the user's space to the device space using
+      * appropriate device transformation.
+      *
+      * @param  x coordinate in the user space
+      * @param  y coordinate in the user space
+      * @return the point which uses device space(pixels)
+      */
+     public static Point convertToDeviceSpace(double x, double y) {
+         GraphicsConfiguration gc = getLocalGraphicsEnvironment()
+                         .getDefaultScreenDevice().getDefaultConfiguration();
+         gc = getGraphicsConfigurationAtPoint(gc, x, y);
+ 
+         AffineTransform tx = gc.getDefaultTransform();
+         x = Region.clipRound(x * tx.getScaleX());
+         y = Region.clipRound(y * tx.getScaleY());
+ 
+         return new Point((int) x, (int) y);
+     }
  }