66 строки
2 КиБ
Java
66 строки
2 КиБ
Java
package org.insa.graphics.drawing.overlays;
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import java.awt.Color;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.DataInputStream;
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public class MarkerUtils {
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/**
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* Create an Image representing a marker of the given color.
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*
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* @param color Color of the marker.
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*
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* @return A new Image representing a marker with the given color.
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*/
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public static Image getMarkerForColor(Color color) {
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// create image
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int[][] mask = readMarkerMask();
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BufferedImage image = new BufferedImage(mask[0].length, mask.length,
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BufferedImage.TYPE_4BYTE_ABGR);
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// Color[] map = getColorMapping(color);
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int rgb = color.getRGB() & 0x00ffffff;
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for (int i = 0; i < image.getHeight(); ++i) {
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for (int j = 0; j < image.getWidth(); ++j) {
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// image.setRGB(j, i, map[MARKER_MASK[i][j]].getRGB());
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image.setRGB(j, i, rgb | (mask[i][j] << 24));
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}
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}
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return image;
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}
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// Mask cache
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private static int[][] MASK_CACHE = null;
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/**
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* @return Retrieve the mask from the mask file or from the cache.
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*/
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private static int[][] readMarkerMask() {
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if (MASK_CACHE == null) {
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try {
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DataInputStream dis = new DataInputStream(
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MarkerUtils.class.getResourceAsStream("/marker_mask.bin"));
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int nrows = dis.readInt();
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int ncols = dis.readInt();
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MASK_CACHE = new int[nrows][ncols];
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for (int i = 0; i < nrows; ++i) {
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for (int j = 0; j < ncols; ++j) {
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MASK_CACHE[i][j] = dis.readUnsignedByte();
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}
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}
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dis.close();
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}
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catch (Exception e) {
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e.printStackTrace();
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MASK_CACHE = null;
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}
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}
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return MASK_CACHE;
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}
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}
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