X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=org.simantics.district.maps%2Fsrc%2Forg%2Fsimantics%2Fmaps%2Finternal%2FImageUtil.java;fp=org.simantics.district.maps%2Fsrc%2Forg%2Fsimantics%2Fmaps%2Finternal%2FImageUtil.java;h=162097b3b181f6777c766c1f7d0b3d20a49ef864;hb=d3de128e6d55f9f6a1325985695b925a1056c469;hp=0000000000000000000000000000000000000000;hpb=29914be09d4a237840e5c793bdb562ec83093b8d;p=simantics%2Fdistrict.git

diff --git a/org.simantics.district.maps/src/org/simantics/maps/internal/ImageUtil.java b/org.simantics.district.maps/src/org/simantics/maps/internal/ImageUtil.java
new file mode 100644
index 00000000..162097b3
--- /dev/null
+++ b/org.simantics.district.maps/src/org/simantics/maps/internal/ImageUtil.java
@@ -0,0 +1,58 @@
+package org.simantics.maps.internal;
+
+import java.awt.Graphics2D;
+import java.awt.GraphicsConfiguration;
+import java.awt.GraphicsEnvironment;
+import java.awt.image.BufferedImage;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.35.0
+ */
+public class ImageUtil {
+
+	public static BufferedImage createScreenCompatibleImage(int width, int height, int transparency) {
+		return createCompatibleImage(
+				GraphicsEnvironment
+				.getLocalGraphicsEnvironment()
+				.getDefaultScreenDevice()
+				.getDefaultConfiguration(),
+				width, height, transparency);
+	}
+
+	public static BufferedImage createCompatibleImage(GraphicsConfiguration conf, int width, int height, int transparency) {
+		return conf.createCompatibleImage(width, height, transparency);
+	}
+
+	public static BufferedImage toScreenCompatibleImage(BufferedImage img) {
+		return toCompatibleImage(
+				GraphicsEnvironment
+				.getLocalGraphicsEnvironment()
+				.getDefaultScreenDevice()
+				.getDefaultConfiguration(),
+				img);
+	}
+
+	public static BufferedImage toCompatibleImage(GraphicsConfiguration conf, BufferedImage img) {
+		// TODO: add checks to prevent new image creation if the provided image is already compatible with the given GraphicsConfiguration
+		if (img.getColorModel().equals(conf.getColorModel()))
+			return img;
+
+//		BufferedImage result = null;
+//		if (img.getAlphaRaster() != null) {
+//			result = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_4BYTE_ABGR);
+//		} else {
+//			result = new BufferedImage(img.getWidth(), img.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
+//		}
+
+		BufferedImage result = createCompatibleImage(conf, img.getWidth(), img.getHeight(), img.getTransparency());
+		Graphics2D g = result.createGraphics();
+		try {
+			g.drawImage(img, 0, 0, null);
+			return result;
+		} finally {
+			g.dispose();
+		}
+	}
+
+}