Examples with AlphaComposite java.awt.AlphaComposite used on opensource projects

Example 51 with AlphaComposite

use of java.awt.AlphaComposite in project litiengine by gurkenlabs.

the class OrthogonalMapRenderer method renderTileLayerImage.

/**
 * Renders the tiles from the specified layer that lie within the bounds of
 * the viewport. This rendering of static tiles is cached when when the
 * related graphics setting is enabled, which tremendously improves the
 * rendering performance.
 *
 * @param g
 * @param layer
 * @param map
 * @param viewport
 */
private void renderTileLayerImage(final Graphics2D g, final ITileLayer layer, final IMap map, final Rectangle2D viewport) {
    final Point startTile = MapUtilities.getTile(map, new Point2D.Double(viewport.getX(), viewport.getY()));
    final Point endTile = MapUtilities.getTile(map, new Point2D.Double(viewport.getMaxX(), viewport.getMaxY()));
    final double viewportOffsetX = -(viewport.getX() - startTile.x * map.getTileSize().width) + layer.getPosition().x;
    final double viewportOffsetY = -(viewport.getY() - startTile.y * map.getTileSize().height) + layer.getPosition().y;
    // set alpha value of the tiles by the layers value
    final Composite oldComp = g.getComposite();
    final AlphaComposite ac = java.awt.AlphaComposite.getInstance(AlphaComposite.SRC_OVER, layer.getOpacity());
    g.setComposite(ac);
    final int startX = MathUtilities.clamp(startTile.x, 0, layer.getSizeInTiles().width);
    final int endX = MathUtilities.clamp(endTile.x, 0, layer.getSizeInTiles().width);
    final int startY = MathUtilities.clamp(startTile.y, 0, layer.getSizeInTiles().height);
    final int endY = MathUtilities.clamp(endTile.y, 0, layer.getSizeInTiles().height);
    final double offsetX = viewportOffsetX + (startX - startTile.x) * map.getTileSize().width;
    final double offsetY = viewportOffsetY + (startY - startTile.y) * map.getTileSize().height;
    for (int x = startX; x <= endX; x++) {
        for (int y = startY; y <= endY; y++) {
            ITile tile = layer.getTile(x, y);
            if (tile == null) {
                continue;
            }
            final Image tileTexture = getTileImage(map, tile);
            RenderEngine.renderImage(g, tileTexture, offsetX + (x - startX) * map.getTileSize().width, offsetY + (y - startY) * map.getTileSize().height);
        }
    }
    g.setComposite(oldComp);
}

Example 52 with AlphaComposite

use of java.awt.AlphaComposite in project litiengine by gurkenlabs.

the class OrthogonalMapRenderer method renderImageLayer.

private void renderImageLayer(Graphics2D g, IImageLayer layer, Rectangle2D viewport) {
    final Composite oldComp = g.getComposite();
    final AlphaComposite ac = java.awt.AlphaComposite.getInstance(AlphaComposite.SRC_OVER, layer.getOpacity());
    g.setComposite(ac);
    final double viewportOffsetX = -viewport.getX() + layer.getPosition().x;
    final double viewportOffsetY = -viewport.getY() + layer.getPosition().y;
    Spritesheet sprite = Spritesheet.find(layer.getImage().getSource());
    if (sprite == null) {
        return;
    }
    RenderEngine.renderImage(g, sprite.getImage(), viewportOffsetX, viewportOffsetY);
    g.setComposite(oldComp);
}

Example 53 with AlphaComposite

use of java.awt.AlphaComposite in project jdk8u_jdk by JetBrains.

the class SunGraphics2D method validateColor.

/*
     * Validate the eargb and pixel fields against the current color.
     *
     * The eargb field must take into account the extraAlpha
     * value of an AlphaComposite.  It may also take into account
     * the Fsrc Porter-Duff blending function if such a function is
     * a constant (see handling of Clear mode below).  For instance,
     * by factoring in the (Fsrc == 0) state of the Clear mode we can
     * use a SrcNoEa loop just as easily as a general Alpha loop
     * since the math will be the same in both cases.
     *
     * The pixel field will always be the best pixel data choice for
     * the final result of all calculations applied to the eargb field.
     *
     * Note that this method is only necessary under the following
     * conditions:
     *     (paintState <= PAINT_ALPHA_COLOR &&
     *      compositeState <= COMP_CUSTOM)
     * though nothing bad will happen if it is run in other states.
     */
final void validateColor() {
    int eargb;
    if (imageComp == CompositeType.Clear) {
        eargb = 0;
    } else {
        eargb = foregroundColor.getRGB();
        if (compositeState <= COMP_ALPHA && imageComp != CompositeType.SrcNoEa && imageComp != CompositeType.SrcOverNoEa) {
            AlphaComposite alphacomp = (AlphaComposite) composite;
            int a = Math.round(alphacomp.getAlpha() * (eargb >>> 24));
            eargb = (eargb & 0x00ffffff) | (a << 24);
        }
    }
    this.eargb = eargb;
    this.pixel = surfaceData.pixelFor(eargb);
}

Example 54 with AlphaComposite

use of java.awt.AlphaComposite in project pentaho-kettle by pentaho.

the class SwingGC method setAlpha.

public void setAlpha(int alpha) {
    this.alpha = alpha;
    AlphaComposite alphaComposite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha / 255);
    gc.setComposite(alphaComposite);
}

Example 55 with AlphaComposite

use of java.awt.AlphaComposite in project cytoscape-impl by cytoscape.

the class ImageAnnotationImpl method paint.

@Override
public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    if (image == null)
        return;
    // Get the stroke
    int border = (int) Math.round(getBorderWidth() * getZoom());
    // Calculate the new width & height
    int width = getWidth() - border;
    int height = getHeight() - border;
    if (resizedImage == null || resizedImage.getWidth() != width || resizedImage.getHeight() != height)
        resizedImage = resizeImage(width, height);
    int x = 0;
    int y = 0;
    AlphaComposite ac = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
    g2.setComposite(ac);
    g2.drawImage(resizedImage, x + border + 1, y + border + 1, this);
    super.paint(g);
}