Changeset 17089 in osm for applications/editors/josm/plugins/cadastre-fr/src/cadastre_fr/ImageModifier.java

Timestamp:

2009-08-16T23:36:16+02:00 (16 years ago)

Author:

pieren

Message:

raster image feature implementation

File:

• applications/editors/josm/plugins/cadastre-fr/src/cadastre_fr/ImageModifier.java (modified) (1 diff)

applications/editors/josm/plugins/cadastre-fr/src/cadastre_fr/ImageModifier.java

@@ -1 +1 @@
 package cadastre_fr;
 
-import java.awt.Color;
 import java.awt.image.BufferedImage;
-import java.awt.image.ColorModel;
-import java.awt.image.IndexColorModel;
-import java.awt.image.WritableRaster;
-import org.openstreetmap.josm.Main;
-import org.openstreetmap.josm.tools.ColorHelper;
 
-public class ImageModifier {
-
+public abstract class ImageModifier {
     /**
      * Current background color used by cadastre.gouv.fr
      */
+    //public static int cadastreBackgroundTransp = 1; // original white but transparent
+
     private static final long serialVersionUID = 1L;
-
-    public static final int cadastreBackground = -1; // white
-
-    public static final int cadastreBackgroundTransp = 1; // original white but transparent
 
     public BufferedImage bufferedImage;
 
-    private boolean withBackground = false;
-
-    private int backgroundPixel = 0;
-
-    private int backgroundSampleX, backgroundSampleY;
-
-    public ImageModifier(BufferedImage bi) {
-        bufferedImage = bi;
-        if (Main.pref.getBoolean("cadastrewms.backgroundTransparent"))
-            makeTransparent();
-        else if (Main.pref.getBoolean("cadastrewms.alterColors"))
-            replaceBackground();
-
-        if (Main.pref.getBoolean("cadastrewms.invertGrey"))
-            invertGrey();
-    }
-
-    /**
-     * Replace the background color by the josm color.background color.
-     */
-    private void replaceBackground() {
-        int w = bufferedImage.getWidth();
-        int h = bufferedImage.getHeight();
-        int josmBackgroundColor = ColorHelper.html2color(Main.pref.get("color.background", "#000000")).getRGB();
-        for (int x = 0; x < w; x++) {
-            for (int y = 0; y < h; y++) {
-                int pixel = bufferedImage.getRGB(x, y);
-                if (pixel == cadastreBackground) {
-                    bufferedImage.setRGB(x, y, josmBackgroundColor);
-                    if (!withBackground)
-                        withBackground = true;
-                    backgroundSampleX = x;
-                    backgroundSampleY = y;
-                }
-            }
-        }
-    }
-
-    /**
-     * Invert black/white/grey pixels (to change original black characters to white).
-     */
-    private void invertGrey() {
-        int w = bufferedImage.getWidth();
-        int h = bufferedImage.getHeight();
-        for (int x = 0; x < w; x++) {
-            for (int y = 0; y < h; y++) {
-                int pixel = bufferedImage.getRGB(x, y);
-                if (pixel != cadastreBackground) {
-                    bufferedImage.setRGB(x, y, reverseIfGrey(pixel));
-                }
-            }
-        }
-    }
-
-    /**
-     * Reverse the grey value if the pixel is grey (light grey becomes dark grey)
-     * Used for texts.
-     * @param pixel
-     * @return
-     */
-    private int reverseIfGrey(int pixel) {
-        Color col = new Color(pixel);
-        int r = col.getRed();
-        int g = col.getGreen();
-        int b = col.getBlue();
-        if ((b == r) && (b == g)) {
-            pixel = (0x00 << 32) + ((byte) (255 - r) << 16) + ((byte) (255 - r) << 8) + ((byte) (255 - r));
-        }
-        return pixel;
-    }
-
-    private void makeTransparent() {
-        ColorModel colorModel = bufferedImage.getColorModel();
-        if (bufferedImage.getColorModel() instanceof IndexColorModel) {
-            // vector image (IndexColorModel)
-            IndexColorModel icm = (IndexColorModel) colorModel;
-            WritableRaster raster = bufferedImage.getRaster();
-            // pixel is offset in ICM's palette
-            if (withBackground)
-                backgroundPixel = raster.getSample(backgroundSampleX, backgroundSampleY, 0);
-            else
-                backgroundPixel = 1; // default Cadastre background sample
-            int size = icm.getMapSize();
-            byte[] reds = new byte[size];
-            byte[] greens = new byte[size];
-            byte[] blues = new byte[size];
-            icm.getReds(reds);
-            icm.getGreens(greens);
-            icm.getBlues(blues);
-            IndexColorModel icm2 = new IndexColorModel(colorModel.getPixelSize(), size, reds, greens, blues,
-                    backgroundPixel);
-            bufferedImage = new BufferedImage(icm2, raster, bufferedImage.isAlphaPremultiplied(), null);
-        } else {
-            int width = bufferedImage.getWidth();
-            int height = bufferedImage.getHeight();
-            BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
-            for (int y = 0; y < height; y++) {
-                for (int x = 0; x < width; x++) {
-                    Color c = new Color(bufferedImage.getRGB(x, y));
-                    int r = c.getRed();
-                    int g = c.getGreen();
-                    int b = c.getBlue();
-                    Color maskedColor;
-                    if (r==0 && g==0 && b==0) {
-                        maskedColor = new Color(r, g, b, 0x00);
-                    } else {
-                        maskedColor = new Color(r, g, b, 0xFF);
-                    }
-                    bi.setRGB(x, y, maskedColor.getRGB());
-                }
-            }
-            bufferedImage = bi;
-        }
-        return;
-    }
 }