Esempio n. 1
0
  public void paint(Graphics g) {
    super.paint(g);

    Graphics2D g2 = (Graphics2D) g;
    int size =
        Math.min(
            MAX_SIZE,
            Math.min(
                getWidth() - imagePadding.left - imagePadding.right,
                getHeight() - imagePadding.top - imagePadding.bottom));

    g2.translate(getWidth() / 2 - size / 2, getHeight() / 2 - size / 2);
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    Shape shape;

    if (mode == ColorPicker.SAT || mode == ColorPicker.BRI) {
      shape = new Ellipse2D.Float(0, 0, size, size);
    } else {
      Rectangle r = new Rectangle(0, 0, size, size);
      shape = r;
    }

    if (hasFocus()) {
      PaintUtils.paintFocus(g2, shape, 5);
    }

    if (!(shape instanceof Rectangle)) {
      // paint a circular shadow
      g2.translate(2, 2);
      g2.setColor(new Color(0, 0, 0, 20));
      g2.fill(new Ellipse2D.Float(-2, -2, size + 4, size + 4));
      g2.setColor(new Color(0, 0, 0, 40));
      g2.fill(new Ellipse2D.Float(-1, -1, size + 2, size + 2));
      g2.setColor(new Color(0, 0, 0, 80));
      g2.fill(new Ellipse2D.Float(0, 0, size, size));
      g2.translate(-2, -2);
    }

    g2.drawImage(image, 0, 0, size, size, 0, 0, size, size, null);

    if (shape instanceof Rectangle) {
      Rectangle r = (Rectangle) shape;
      PaintUtils.drawBevel(g2, r);
    } else {
      g2.setColor(new Color(0, 0, 0, 120));
      g2.draw(shape);
    }

    g2.setColor(Color.white);
    g2.setStroke(new BasicStroke(1));
    g2.draw(new Ellipse2D.Float(point.x - 3, point.y - 3, 6, 6));
    g2.setColor(Color.black);
    g2.draw(new Ellipse2D.Float(point.x - 4, point.y - 4, 8, 8));

    g.translate(-imagePadding.left, -imagePadding.top);
  }
Esempio n. 2
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        public void mousePressed(MouseEvent e) {
          requestFocus();
          Point p = e.getPoint();
          int size =
              Math.min(
                  MAX_SIZE,
                  Math.min(
                      getWidth() - imagePadding.left - imagePadding.right,
                      getHeight() - imagePadding.top - imagePadding.bottom));
          p.translate(-(getWidth() / 2 - size / 2), -(getHeight() / 2 - size / 2));
          if (mode == ColorPicker.BRI || mode == ColorPicker.SAT) {
            // the two circular views:
            double radius = ((double) size) / 2.0;
            double x = p.getX() - size / 2.0;
            double y = p.getY() - size / 2.0;
            double r = Math.sqrt(x * x + y * y) / radius;
            double theta = Math.atan2(y, x) / (Math.PI * 2.0);

            if (r > 1) r = 1;

            if (mode == ColorPicker.BRI) {
              setHSB((float) (theta + .25f), (float) (r), bri);
            } else {
              setHSB((float) (theta + .25f), sat, (float) (r));
            }
          } else if (mode == ColorPicker.HUE) {
            float s = ((float) p.x) / ((float) size);
            float b = ((float) p.y) / ((float) size);
            if (s < 0) s = 0;
            if (s > 1) s = 1;
            if (b < 0) b = 0;
            if (b > 1) b = 1;
            setHSB(hue, s, b);
          } else {
            int x2 = p.x * 255 / size;
            int y2 = p.y * 255 / size;
            if (x2 < 0) x2 = 0;
            if (x2 > 255) x2 = 255;
            if (y2 < 0) y2 = 0;
            if (y2 > 255) y2 = 255;

            if (mode == ColorPicker.RED) {
              setRGB(red, x2, y2);
            } else if (mode == ColorPicker.GREEN) {
              setRGB(x2, green, y2);
            } else {
              setRGB(x2, y2, blue);
            }
          }
        }
Esempio n. 3
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        public void keyPressed(KeyEvent e) {
          int dx = 0;
          int dy = 0;
          if (e.getKeyCode() == KeyEvent.VK_LEFT) {
            dx = -1;
          } else if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
            dx = 1;
          } else if (e.getKeyCode() == KeyEvent.VK_UP) {
            dy = -1;
          } else if (e.getKeyCode() == KeyEvent.VK_DOWN) {
            dy = 1;
          }
          int multiplier = 1;
          if (e.isShiftDown() && e.isAltDown()) {
            multiplier = 10;
          } else if (e.isShiftDown() || e.isAltDown()) {
            multiplier = 5;
          }
          if (dx != 0 || dy != 0) {
            int size =
                Math.min(
                    MAX_SIZE,
                    Math.min(
                        getWidth() - imagePadding.left - imagePadding.right,
                        getHeight() - imagePadding.top - imagePadding.bottom));

            int offsetX = getWidth() / 2 - size / 2;
            int offsetY = getHeight() / 2 - size / 2;
            mouseListener.mousePressed(
                new MouseEvent(
                    ColorPickerPanel.this,
                    MouseEvent.MOUSE_PRESSED,
                    System.currentTimeMillis(),
                    0,
                    point.x + multiplier * dx + offsetX,
                    point.y + multiplier * dy + offsetY,
                    1,
                    false));
          }
        }
Esempio n. 4
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  /** Recalculates the (x,y) point used to indicate the selected color. */
  private void regeneratePoint() {
    int size =
        Math.min(
            MAX_SIZE,
            Math.min(
                getWidth() - imagePadding.left - imagePadding.right,
                getHeight() - imagePadding.top - imagePadding.bottom));
    if (mode == ColorPicker.HUE || mode == ColorPicker.SAT || mode == ColorPicker.BRI) {
      if (mode == ColorPicker.HUE) {
        point = new Point((int) (sat * size), (int) (bri * size));
      } else if (mode == ColorPicker.SAT) {
        double theta = hue * 2 * Math.PI - Math.PI / 2;
        if (theta < 0) theta += 2 * Math.PI;

        double r = bri * size / 2;
        point =
            new Point(
                (int) (r * Math.cos(theta) + .5 + size / 2.0),
                (int) (r * Math.sin(theta) + .5 + size / 2.0));
      } else if (mode == ColorPicker.BRI) {
        double theta = hue * 2 * Math.PI - Math.PI / 2;
        if (theta < 0) theta += 2 * Math.PI;
        double r = sat * size / 2;
        point =
            new Point(
                (int) (r * Math.cos(theta) + .5 + size / 2.0),
                (int) (r * Math.sin(theta) + .5 + size / 2.0));
      }
    } else if (mode == ColorPicker.RED) {
      point = new Point((int) (green * size / 255f + .49f), (int) (blue * size / 255f + .49f));
    } else if (mode == ColorPicker.GREEN) {
      point = new Point((int) (red * size / 255f + .49f), (int) (blue * size / 255f + .49f));
    } else if (mode == ColorPicker.BLUE) {
      point = new Point((int) (red * size / 255f + .49f), (int) (green * size / 255f + .49f));
    }
  }
Esempio n. 5
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  /** Regenerates the image. */
  private synchronized void regenerateImage() {
    int size =
        Math.min(
            MAX_SIZE,
            Math.min(
                getWidth() - imagePadding.left - imagePadding.right,
                getHeight() - imagePadding.top - imagePadding.bottom));

    if (mode == ColorPicker.BRI || mode == ColorPicker.SAT) {
      float bri2 = this.bri;
      float sat2 = this.sat;
      float radius = ((float) size) / 2f;
      float hue2;
      float k = 1.2f; // the number of pixels to antialias
      for (int y = 0; y < size; y++) {
        float y2 = (y - size / 2f);
        for (int x = 0; x < size; x++) {
          float x2 = (x - size / 2f);
          double theta = Math.atan2(y2, x2) - 3 * Math.PI / 2.0;
          if (theta < 0) theta += 2 * Math.PI;

          double r = Math.sqrt(x2 * x2 + y2 * y2);
          if (r <= radius) {
            if (mode == ColorPicker.BRI) {
              hue2 = (float) (theta / (2 * Math.PI));
              sat2 = (float) (r / radius);
            } else { // SAT
              hue2 = (float) (theta / (2 * Math.PI));
              bri2 = (float) (r / radius);
            }
            row[x] = Color.HSBtoRGB(hue2, sat2, bri2);
            if (r > radius - k) {
              int alpha = (int) (255 - 255 * (r - radius + k) / k);
              if (alpha < 0) alpha = 0;
              if (alpha > 255) alpha = 255;
              row[x] = row[x] & 0xffffff + (alpha << 24);
            }
          } else {
            row[x] = 0x00000000;
          }
        }
        image.getRaster().setDataElements(0, y, size, 1, row);
      }
    } else if (mode == ColorPicker.HUE) {
      float hue2 = this.hue;
      for (int y = 0; y < size; y++) {
        float y2 = ((float) y) / ((float) size);
        for (int x = 0; x < size; x++) {
          float x2 = ((float) x) / ((float) size);
          row[x] = Color.HSBtoRGB(hue2, x2, y2);
        }
        image.getRaster().setDataElements(0, y, image.getWidth(), 1, row);
      }
    } else { // mode is RED, GREEN, or BLUE
      int red2 = red;
      int green2 = green;
      int blue2 = blue;
      for (int y = 0; y < size; y++) {
        float y2 = ((float) y) / ((float) size);
        for (int x = 0; x < size; x++) {
          float x2 = ((float) x) / ((float) size);
          if (mode == ColorPicker.RED) {
            green2 = (int) (x2 * 255 + .49);
            blue2 = (int) (y2 * 255 + .49);
          } else if (mode == ColorPicker.GREEN) {
            red2 = (int) (x2 * 255 + .49);
            blue2 = (int) (y2 * 255 + .49);
          } else {
            red2 = (int) (x2 * 255 + .49);
            green2 = (int) (y2 * 255 + .49);
          }
          row[x] = 0xFF000000 + (red2 << 16) + (green2 << 8) + blue2;
        }
        image.getRaster().setDataElements(0, y, size, 1, row);
      }
    }
    repaint();
  }