class RGB { public final float r, g, b; public RGB(float r, float g, float b) { this.r = r; this.g = g; this.b = b; } public RGB(double r, double g, double b) { this.r = (float) r; this.g = (float) g; this.b = (float) b; } public RGB(double brightness) { this.r = this.g = this.b = (float) brightness; } public RGB(Color color) { this.r = color.getRed()/255f; this.g = color.getGreen()/255f; this.b = color.getBlue()/255f; } public RGB(String hex) { r = Integer.parseInt(hex.substring(0, 2), 16)/255f; g = Integer.parseInt(hex.substring(2, 4), 16)/255f; b = Integer.parseInt(hex.substring(4, 6), 16)/255f; } public float getComponent(int i) { return i == 0 ? r : i == 1 ? g : b; } public Color getColor() { return new Color(r, g, b); } public static RGB newSafe(float r, float g, float b) { return new RGB(Math.max(0, Math.min(1, r)), Math.max(0, Math.min(1, g)), Math.max(0, Math.min(1, b))); } public int asInt() { return getColor().getRGB() & 0xFFFFFF; } public float getBrightness() { return (r+g+b)/3.0f; } public String getHexString() { return Integer.toHexString(asInt() | 0xFF000000).substring(2).toUpperCase(); } @Override public boolean equals(Object o) { if (this == o) return true; if (!(o instanceof RGB)) return false; RGB rgb = (RGB) o; if (Float.compare(rgb.b, b) != 0) return false; if (Float.compare(rgb.g, g) != 0) return false; if (Float.compare(rgb.r, r) != 0) return false; return true; } @Override public int hashCode() { int result = (r != +0.0f ? Float.floatToIntBits(r) : 0); result = 31 * result + (g != +0.0f ? Float.floatToIntBits(g) : 0); result = 31 * result + (b != +0.0f ? Float.floatToIntBits(b) : 0); return result; } public boolean isBlack() { return r == 0f && g == 0f && b == 0f; } public boolean isWhite() { return r == 1f && g == 1f && b == 1f; } public String toString() { return getHexString(); } } class RGBImage { private BufferedImage bufferedImage; private File file; private int width, height; private int[] pixels; // color returned when getPixel is called with out-of-bounds position private int background = 0xFFFFFF; public RGBImage(BufferedImage image) { this(image, null); } public RGBImage(BufferedImage image, File file) { this.file = file; bufferedImage = image; width = image.getWidth(); height = image.getHeight(); pixels = new int[width*height]; PixelGrabber pixelGrabber = new PixelGrabber(image, 0, 0, width, height, pixels, 0, width); try { if (!pixelGrabber.grabPixels()) throw new RuntimeException("Could not grab pixels"); cleanPixels(); // set upper byte to 0 } catch (InterruptedException e) { throw new RuntimeException(e); } } /** We assume it's a file name to load from */ public RGBImage(String file) throws IOException { this(new File(file)); } public RGBImage(Dimension size, Color color) { this(size.width, size.height, color); } public RGBImage(Dimension size, RGB color) { this(size.width, size.height, color); } private void cleanPixels() { for (int i = 0; i < pixels.length; i++) pixels[i] &= 0xFFFFFF; } public RGBImage(int width, int height, int[] pixels) { this.width = width; this.height = height; this.pixels = pixels; } public RGBImage(int w, int h, RGB[] pixels) { this.width = w; this.height = h; this.pixels = asInts(pixels); } public static int[] asInts(RGB[] pixels) { int[] ints = new int[pixels.length]; for (int i = 0; i < pixels.length; i++) ints[i] = pixels[i] == null ? 0 : pixels[i].getColor().getRGB(); return ints; } public RGBImage(int w, int h) { this(w, h, Color.black); } public RGBImage(int w, int h, RGB rgb) { this.width = w; this.height = h; this.pixels = new int[w*h]; int col = rgb.asInt(); if (col != 0) for (int i = 0; i < pixels.length; i++) pixels[i] = col; } public RGBImage(RGBImage image) { this(image.width, image.height, copyPixels(image.pixels)); } public RGBImage(int width, int height, Color color) { this(width, height, new RGB(color)); } public RGBImage(File file) throws IOException { this(javax.imageio.ImageIO.read(file)); } private static int[] copyPixels(int[] pixels) { int[] copy = new int[pixels.length]; System.arraycopy(pixels, 0, copy, 0, pixels.length); return copy; } public int getIntPixel(int x, int y) { if (inRange(x, y)) return pixels[y * width + x]; else return background; } public static RGB asRGB(int packed) { int r = (packed >> 16) & 0xFF; int g = (packed >> 8) & 0xFF; int b = packed & 0xFF; return new RGB(r / 255f, g / 255f, b / 255f); } public RGB getRGB(int x, int y) { if (inRange(x, y)) return asRGB(pixels[y * width + x]); else return new RGB(background); } /** alias of getRGB - I kept typing getPixel instead of getRGB all the time, so I finally created it */ public RGB getPixel(int x, int y) { return getRGB(x, y); } public int getWidth() { return width; } public int getHeight() { return height; } /** Attention: cached, i.e. does not change when image itself changes */ /** @NotNull */ public BufferedImage getBufferedImage() { if (bufferedImage == null) { bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); //bufferedImage.setData(Raster.createRaster(new SampleModel())); for (int y = 0; y < height; y++) for (int x = 0; x < width; x++) bufferedImage.setRGB(x, y, pixels[y*width+x]); } return bufferedImage; } public RGBImage clip(Rectangle r) { r = fixClipRect(r); int[] newPixels; try { newPixels = new int[r.width*r.height]; } catch (RuntimeException e) { System.out.println(r); throw e; } for (int y = 0; y < r.height; y++) { System.arraycopy(pixels, (y+r.y)*width+r.x, newPixels, y*r.width, r.width); } return new RGBImage(r.width, r.height, newPixels); } private Rectangle fixClipRect(Rectangle r) { r = r.intersection(new Rectangle(0, 0, width, height)); if (r.isEmpty()) r = new Rectangle(r.x, r.y, 0, 0); return r; } public File getFile() { return file; } /** can now also do GIF (not just JPEG) */ public static RGBImage load(String fileName) { return load(new File(fileName)); } /** can now also do GIF (not just JPEG) */ public static RGBImage load(File file) { try { BufferedImage bufferedImage = javax.imageio.ImageIO.read(file); return new RGBImage(bufferedImage); } catch (IOException e) { throw new RuntimeException(e); } } public int getInt(int x, int y) { return pixels[y * width + x]; } public void save(File file) throws IOException { String name = file.getName().toLowerCase(); String type; if (name.endsWith(".png")) type = "png"; else if (name.endsWith(".jpg") || name.endsWith(".jpeg")) type = "jpeg"; else throw new IOException("Unknown image extension: " + name); javax.imageio.ImageIO.write(getBufferedImage(), type, file); } public static RGBImage dummyImage() { return new RGBImage(1, 1, new int[] {0xFFFFFF}); } public int[] getPixels() { return pixels; } public void setPixel(int x, int y, RGB rgb) { if (x >= 0 && y >= 0 && x < width && y < height) pixels[y*width+x] = rgb.asInt(); } public void setPixel(int x, int y, Color color) { setPixel(x, y, new RGB(color)); } public void setPixel(int x, int y, int rgb) { if (x >= 0 && y >= 0 && x < width && y < height) pixels[y*width+x] = rgb; } public RGBImage copy() { return new RGBImage(this); } public boolean inRange(int x, int y) { return x >= 0 && y >= 0 && x < width && y < height; } public int getBackground() { return background; } public void setBackground(int background) { this.background = background; } public Dimension getSize() { return new Dimension(width, height); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; RGBImage rgbImage = (RGBImage) o; if (height != rgbImage.height) return false; if (width != rgbImage.width) return false; if (!Arrays.equals(pixels, rgbImage.pixels)) return false; return true; } @Override public int hashCode() { int result = width; result = 31 * result + height; result = 31 * result + Arrays.hashCode(pixels); return result; } public String getHex(int x, int y) { return getPixel(x, y).getHexString(); } public RGBImage clip(int x, int y, int width, int height) { return clip(new Rectangle(x, y, width, height)); } public RGBImage clipLine(int y) { return clip(0, y, width, 1); } public int numPixels() { return width*height; } } abstract class Surface extends JPanel { public Object AntiAlias = RenderingHints.VALUE_ANTIALIAS_ON; public Object Rendering = RenderingHints.VALUE_RENDER_SPEED; public AlphaComposite composite; public Paint texture; public BufferedImage bimg; public int imageType; public String name; public boolean clearSurface = true; // Demos using animated gif's that implement ImageObserver set dontThread. public boolean dontThread; protected long sleepAmount = 50; // max20 fps private long orig, start, frame; private Toolkit toolkit; private boolean perfMonitor, outputPerf; private int biw, bih; private boolean clearOnce; private boolean toBeInitialized = true; public Surface() { setDoubleBuffered(false); toolkit = getToolkit(); name = this.getClass().getName(); name = name.substring(name.indexOf(".", 7)+1); setImageType(0); // To launch an individual demo with the performance str output : // java -Djava2demo.perf= -cp Java2Demo.jar demos.Clipping.ClipAnim try { if (System.getProperty("java2demo.perf") != null) { perfMonitor = outputPerf = true; } } catch (Exception ex) { } } /*protected Image getImage(String name) { return DemoImages.getImage(name, this); } protected Font getFont(String name) { return DemoFonts.getFont(name); }*/ public int getImageType() { return imageType; } public void setImageType(int imgType) { if (imgType == 0) { imageType = 1; } else { imageType = imgType; } bimg = null; } public void setAntiAlias(boolean aa) { AntiAlias = aa ? RenderingHints.VALUE_ANTIALIAS_ON : RenderingHints.VALUE_ANTIALIAS_OFF; } public void setRendering(boolean rd) { Rendering = rd ? RenderingHints.VALUE_RENDER_QUALITY : RenderingHints.VALUE_RENDER_SPEED; } public void setTexture(Object obj) { if (obj instanceof GradientPaint) { texture = new GradientPaint(0, 0, Color.white, getSize().width*2, 0, Color.green); } else { texture = (Paint) obj; } } public void setComposite(boolean cp) { composite = cp ? AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.5f) : null; } public void setMonitor(boolean pm) { perfMonitor = pm; } public void setSleepAmount(long amount) { sleepAmount = amount; } public long getSleepAmount() { return sleepAmount; } public BufferedImage createBufferedImage(Graphics2D g2, int w, int h, int imgType) { BufferedImage bi = null; if (imgType == 0) { bi = (BufferedImage) g2.getDeviceConfiguration(). createCompatibleImage(w, h); } else if (imgType > 0 && imgType < 14) { bi = new BufferedImage(w, h, imgType); } else if (imgType == 14) { bi = createBinaryImage(w, h, 2); } else if (imgType == 15) { bi = createBinaryImage(w, h, 4); } else if (imgType == 16) { bi = createSGISurface(w, h, 32); } else if (imgType == 17) { bi = createSGISurface(w, h, 16); } biw = w; bih = h; return bi; } // Lookup tables for BYTE_BINARY 1, 2 and 4 bits. static byte[] lut1Arr = new byte[] {0, (byte)255 }; static byte[] lut2Arr = new byte[] {0, (byte)85, (byte)170, (byte)255}; static byte[] lut4Arr = new byte[] {0, (byte)17, (byte)34, (byte)51, (byte)68, (byte)85,(byte) 102, (byte)119, (byte)136, (byte)153, (byte)170, (byte)187, (byte)204, (byte)221, (byte)238, (byte)255}; private BufferedImage createBinaryImage(int w, int h, int pixelBits) { int bytesPerRow = w * pixelBits / 8; if (w * pixelBits % 8 != 0) { bytesPerRow++; } byte[] imageData = new byte[h * bytesPerRow]; IndexColorModel cm = null; switch (pixelBits) { case 1: cm = new IndexColorModel(pixelBits, lut1Arr.length, lut1Arr, lut1Arr, lut1Arr); break; case 2: cm = new IndexColorModel(pixelBits, lut2Arr.length, lut2Arr, lut2Arr, lut2Arr); break; case 4: cm = new IndexColorModel(pixelBits, lut4Arr.length, lut4Arr, lut4Arr, lut4Arr); break; default: {new Exception("Invalid # of bit per pixel").printStackTrace();} } DataBuffer db = new DataBufferByte(imageData, imageData.length); WritableRaster r = Raster.createPackedRaster(db, w, h, pixelBits, null); return new BufferedImage(cm, r, false, null); } private BufferedImage createSGISurface(int w, int h, int pixelBits) { int rMask32 = 0xFF000000; int rMask16 = 0xF800; int gMask32 = 0x00FF0000; int gMask16 = 0x07C0; int bMask32 = 0x0000FF00; int bMask16 = 0x003E; DirectColorModel dcm = null; DataBuffer db = null; WritableRaster wr = null; switch (pixelBits) { case 16: short[] imageDataUShort = new short[w * h]; dcm = new DirectColorModel(16, rMask16, gMask16, bMask16); db = new DataBufferUShort(imageDataUShort, imageDataUShort.length); wr = Raster.createPackedRaster(db, w, h, w, new int[] {rMask16, gMask16, bMask16}, null); break; case 32: int[] imageDataInt = new int[w * h]; dcm = new DirectColorModel(32, rMask32, gMask32, bMask32); db = new DataBufferInt(imageDataInt, imageDataInt.length); wr = Raster.createPackedRaster(db, w, h, w, new int[] {rMask32, gMask32, bMask32}, null); break; default: {new Exception("Invalid # of bit per pixel").printStackTrace();} } return new BufferedImage(dcm, wr, false, null); } public Graphics2D createGraphics2D(int width, int height, BufferedImage bi, Graphics g) { Graphics2D g2 = null; if (bi != null) { g2 = bi.createGraphics(); } else { g2 = (Graphics2D) g; } g2.setBackground(getBackground()); g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, AntiAlias); g2.setRenderingHint(RenderingHints.KEY_RENDERING, Rendering); if (clearSurface || clearOnce) { g2.clearRect(0, 0, width, height); clearOnce = false; } if (texture != null) { // set composite to opaque for texture fills g2.setComposite(AlphaComposite.SrcOver); g2.setPaint(texture); g2.fillRect(0, 0, width, height); } if (composite != null) { g2.setComposite(composite); } return g2; } public abstract void render(int w, int h, Graphics2D g); /** * It's possible to turn off double-buffering for just the repaint * calls invoked directly on the non double buffered component. * This can be done by overriding paintImmediately() (which is called * as a result of repaint) and getting the current RepaintManager and * turning off double buffering in the RepaintManager before calling * super.paintImmediately(g). */ public void paintImmediately(int x,int y,int w, int h) { RepaintManager repaintManager = null; boolean save = true; if (!isDoubleBuffered()) { repaintManager = RepaintManager.currentManager(this); save = repaintManager.isDoubleBufferingEnabled(); repaintManager.setDoubleBufferingEnabled(false); } super.paintImmediately(x, y, w, h); if (repaintManager != null) { repaintManager.setDoubleBufferingEnabled(save); } } public void paint(Graphics g) { Dimension d = getSize(); if (imageType == 1) bimg = null; else if (bimg == null || biw != d.width || bih != d.height) { bimg = createBufferedImage((Graphics2D)g, d.width, d.height, imageType-2); clearOnce = true; toBeInitialized = true; } if (toBeInitialized) { toBeInitialized = false; startClock(); } Graphics2D g2 = createGraphics2D(d.width, d.height, bimg, g); render(d.width, d.height, g2); g2.dispose(); if (bimg != null) { g.drawImage(bimg, 0, 0, null); toolkit.sync(); } } public void startClock() { orig = System.currentTimeMillis(); start = orig; frame = 0; } private static final int REPORTFRAMES = 30; public static void setAlpha(Graphics2D g, float alpha) { g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha)); } } class ImageSurface extends Surface { private BufferedImage image; private double zoomX = 1, zoomY = 1; private Rectangle selection; public ImageSurface() { this(new RGBImage(1, 1, new int[] { 0xFFFFFF })); } public ImageSurface(RGBImage image) { this(image.getBufferedImage()); } public ImageSurface(BufferedImage image) { clearSurface = false; this.image = image; /*addMouseMotionListener(new MouseAdapter() { public void mouseMoved(MouseEvent e) { getMousePosition() } });*/ } public ImageSurface(RGBImage image, double zoom) { this(image); setZoom(zoom); } public void render(int w, int h, Graphics2D g) { g.setColor(Color.white); g.fillRect(0, 0, w, h); if (image != null) g.drawImage(image, 0, 0, getZoomedWidth(), getZoomedHeight(), null); if (selection != null) { // drawRect is inclusive, selection is exclusive, so... whatever, tests show it's cool. drawSelectionRect(g, selection, Color.green, Color.white); } } public void drawSelectionRect(Graphics2D g, Rectangle selection, Color green, Color white) { g.setColor(green); int top = (int) (selection.y * zoomY); int bottom = (int) ((selection.y+selection.height) * zoomY); int left = (int) (selection.x * zoomX); int right = (int) ((selection.x+selection.width) * zoomX); g.drawRect(left-1, top-1, right-left+1, bottom-top+1); g.setColor(white); g.drawRect(left - 2, top - 2, right - left + 3, bottom - top + 3); } public void setZoom(double zoom) { setZoom(zoom, zoom); } public void setZoom(double zoomX, double zoomY) { this.zoomX = zoomX; this.zoomY = zoomY; revalidate(); repaint(); } public Dimension getMinimumSize() { int w = getZoomedWidth(); int h = getZoomedHeight(); Dimension min = super.getMinimumSize(); return new Dimension(Math.max(w, min.width), Math.max(h, min.height)); } private int getZoomedHeight() { return (int) (image.getHeight() * zoomY); } private int getZoomedWidth() { return (int) (image.getWidth() * zoomX); } public void setImage(RGBImage image) { setImage(image.getBufferedImage()); } public void setImage(BufferedImage image) { this.image = image; revalidate(); repaint(); } public BufferedImage getImage() { return image; } public double getZoomX() { return zoomX; } public double getZoomY() { return zoomY; } public Dimension getPreferredSize() { return new Dimension(getZoomedWidth(), getZoomedHeight()); } /** returns a scrollpane with the scroll-mode prevent-garbage-drawing fix applied */ public JScrollPane makeScrollPane() { JScrollPane scrollPane = new JScrollPane(this); scrollPane.getViewport().setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE); return scrollPane; } public void zoomToDisplaySize() { if (image == null) return; Dimension display = getDisplaySize(); double xRatio = display.width/(double) image.getWidth(); double yRatio = display.height/(double) image.getHeight(); setZoom(Math.min(xRatio, yRatio)); revalidate(); } /** tricky magic to get parent scroll pane */ private Dimension getDisplaySize() { Container c = getParent(); while (c != null) { if (c instanceof JScrollPane) return c.getSize(); c = c.getParent(); } return getSize(); } public void setSelection(Rectangle r) { selection = r; repaint(); } public Rectangle getSelection() { return selection; } public RGBImage getRGBImage() { return new RGBImage(getImage()); } }
Began life as a copy of #2000447
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