org.simantics.district.maps/src/org/simantics/maps/internal/ImageUtil.java

   1 package org.simantics.maps.internal;
   2
   3 import java.awt.Graphics2D;
   4 import java.awt.GraphicsConfiguration;
   5 import java.awt.GraphicsEnvironment;
   6 import java.awt.image.BufferedImage;
   7
   8 /**
   9  * @author Tuukka Lehtonen
  10  * @since 1.35.0
  11  */
  12 public class ImageUtil {
  13
  14         public static BufferedImage createScreenCompatibleImage(int width, int height, int transparency) {
  15                 return createCompatibleImage(
  16                                 GraphicsEnvironment
  17                                 .getLocalGraphicsEnvironment()
  18                                 .getDefaultScreenDevice()
  19                                 .getDefaultConfiguration(),
  20                                 width, height, transparency);
  21         }
  22
  23         public static BufferedImage createCompatibleImage(GraphicsConfiguration conf, int width, int height, int transparency) {
  24                 return conf.createCompatibleImage(width, height, transparency);
  25         }
  26
  27         public static BufferedImage toScreenCompatibleImage(BufferedImage img) {
  28                 return toCompatibleImage(
  29                                 GraphicsEnvironment
  30                                 .getLocalGraphicsEnvironment()
  31                                 .getDefaultScreenDevice()
  32                                 .getDefaultConfiguration(),
  33                                 img);
  34         }
  35
  36         public static BufferedImage toCompatibleImage(GraphicsConfiguration conf, BufferedImage img) {
  37                 // TODO: add checks to prevent new image creation if the provided image is already compatible with the given GraphicsConfiguration
  38                 if (img.getColorModel().equals(conf.getColorModel()))
  39                         return img;
  40
  41 //              BufferedImage result = null;
  42 //              if (img.getAlphaRaster() != null) {
  43 //                      result = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_4BYTE_ABGR);
  44 //              } else {
  45 //                      result = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
  46 //              }
  47
  48                 BufferedImage result = createCompatibleImage(conf, img.getWidth(), img.getHeight(), img.getTransparency());
  49                 Graphics2D g = result.createGraphics();
  50                 try {
  51                         g.drawImage(img, 0, 0, null);
  52                         return result;
  53                 } finally {
  54                         g.dispose();
  55                 }
  56         }
  57
  58 }