List of usage examples for java.awt Image getWidth
public abstract int getWidth(ImageObserver observer);
From source file:org.muse.mneme.impl.AttachmentServiceImpl.java
/** * Create a thumbnail image from the full image in the byte[], of the desired width and height and quality, preserving aspect ratio. * //w ww . j a v a 2 s .co m * @param full * The full image bytes. * @param width * The desired max width (pixels). * @param height * The desired max height (pixels). * @param quality * The JPEG quality (0 - 1). * @return The thumbnail JPEG as a byte[]. * @throws IOException * @throws InterruptedException */ protected byte[] makeThumb(byte[] full, int width, int height, float quality) throws IOException, InterruptedException { // read the image from the byte array, waiting till it's processed Image fullImage = Toolkit.getDefaultToolkit().createImage(full); MediaTracker tracker = new MediaTracker(new Container()); tracker.addImage(fullImage, 0); tracker.waitForID(0); // get the full image dimensions int fullWidth = fullImage.getWidth(null); int fullHeight = fullImage.getHeight(null); // preserve the aspect of the full image, not exceeding the thumb dimensions if (fullWidth > fullHeight) { // full width will take the full desired width, set the appropriate height height = (int) ((((float) width) / ((float) fullWidth)) * ((float) fullHeight)); } else { // full height will take the full desired height, set the appropriate width width = (int) ((((float) height) / ((float) fullHeight)) * ((float) fullWidth)); } // draw the scaled thumb BufferedImage thumbImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); Graphics2D g2D = thumbImage.createGraphics(); g2D.drawImage(fullImage, 0, 0, width, height, null); // encode as jpeg to a byte array ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); BufferedOutputStream out = new BufferedOutputStream(byteStream); JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(thumbImage); param.setQuality(quality, false); encoder.setJPEGEncodeParam(param); encoder.encode(thumbImage); out.close(); byte[] thumb = byteStream.toByteArray(); return thumb; }
From source file:SWTGraphics2D.java
/** * Draws an image.// w w w . j a va2 s .c o m * * @param image (<code>null</code> not permitted). * @param x the x-coordinate. * @param y the y-coordinate. * @param bgcolor the background color. * @param observer an image observer. * * @return A boolean. */ public boolean drawImage(Image image, int x, int y, Color bgcolor, ImageObserver observer) { if (image == null) { throw new IllegalArgumentException("Null 'image' argument."); } int w = image.getWidth(null); int h = image.getHeight(null); if (w == -1 || h == -1) { return false; } Paint savedPaint = getPaint(); fill(new Rectangle2D.Double(x, y, w, h)); setPaint(savedPaint); return drawImage(image, x, y, observer); }
From source file:com.aurel.track.attachment.AttachBL.java
private static BufferedImage toBufferedImage(Image image) { if (image instanceof BufferedImage) { return (BufferedImage) image; }/* ww w . j av a2 s . co m*/ // This code ensures that all the pixels in the image are loaded image = new ImageIcon(image).getImage(); // Determine if the image has transparent pixels; for this method's // implementation, see Determining If an Image Has Transparent Pixels boolean hasAlpha = hasAlpha(image); // Create a buffered image with a format that's compatible with the screen BufferedImage bimage = null; GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); try { // Determine the type of transparency of the new buffered image int transparency = Transparency.OPAQUE; if (hasAlpha) { transparency = Transparency.BITMASK; } // Create the buffered image GraphicsDevice gs = ge.getDefaultScreenDevice(); GraphicsConfiguration gc = gs.getDefaultConfiguration(); bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency); } catch (HeadlessException e) { // The system does not have a screen } if (bimage == null) { // Create a buffered image using the default color model int type = BufferedImage.TYPE_INT_RGB; if (hasAlpha) { type = BufferedImage.TYPE_INT_ARGB; } bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type); } // Copy image to buffered image Graphics g = bimage.createGraphics(); // Paint the image onto the buffered image g.drawImage(image, 0, 0, null); g.dispose(); return bimage; }
From source file:SWTGraphics2D.java
/** * Draws an image.//from www .j a v a 2 s . c o m * * @param image the image (<code>null</code> not permitted). * @param x the x-coordinate. * @param y the y-coordinate. * @param width the width. * @param height the height. * @param bgcolor the background colour. * @param observer an image observer. * * @return A boolean. */ public boolean drawImage(Image image, int x, int y, int width, int height, Color bgcolor, ImageObserver observer) { if (image == null) { throw new IllegalArgumentException("Null 'image' argument."); } int w = image.getWidth(null); int h = image.getHeight(null); if (w == -1 || h == -1) { return false; } Paint savedPaint = getPaint(); fill(new Rectangle2D.Double(x, y, w, h)); setPaint(savedPaint); return drawImage(image, x, y, width, height, observer); }
From source file:org.jfree.experimental.swt.SWTGraphics2D.java
/** * Draws an image.//from w ww . ja v a 2 s . c o m * * @param image (<code>null</code> not permitted). * @param x the x-coordinate. * @param y the y-coordinate. * @param bgcolor the background color. * @param observer an image observer. * * @return A boolean. */ public boolean drawImage(Image image, int x, int y, Color bgcolor, ImageObserver observer) { ParamChecks.nullNotPermitted(image, "image"); int w = image.getWidth(null); int h = image.getHeight(null); if (w == -1 || h == -1) { return false; } Paint savedPaint = getPaint(); fill(new Rectangle2D.Double(x, y, w, h)); setPaint(savedPaint); return drawImage(image, x, y, observer); }
From source file:org.eclipse.birt.chart.device.g2d.G2dRendererBase.java
/** * Scales image according to output DPI. If 96, do not need to scale * // ww w . j a v a 2 s. c o m * @param img * @return */ private java.awt.Image scaleImage(java.awt.Image img) { if (this._ids.getDpiResolution() == 96) { // Do not scale in normal dpi return img; } double scale = this._ids.getDpiResolution() / 96d; int newWidth = (int) (img.getWidth((ImageObserver) getDisplayServer().getObserver()) * scale); int newHeight = (int) (img.getHeight((ImageObserver) getDisplayServer().getObserver()) * scale); return img.getScaledInstance(newWidth, newHeight, Image.SCALE_DEFAULT); }
From source file:net.sf.maltcms.chromaui.charts.FastHeatMapPlot.java
private void drawOffscreenImage(Image sourceImage) { // image creation if (offscreenBuffer == null) { offscreenBuffer = createCompatibleVolatileImage(sourceImage.getWidth(null), sourceImage.getHeight(null), Transparency.TRANSLUCENT); }// w w w .ja v a 2 s . c om do { if (offscreenBuffer.validate(getGraphicsConfiguration()) == VolatileImage.IMAGE_INCOMPATIBLE) { // old vImg doesn't work with new GraphicsConfig; re-create it offscreenBuffer = createCompatibleVolatileImage(sourceImage.getWidth(null), sourceImage.getHeight(null), Transparency.TRANSLUCENT); } Graphics2D g = offscreenBuffer.createGraphics(); // // miscellaneous rendering commands... // g.drawImage(sourceImage, 0, 0, null); g.dispose(); } while (offscreenBuffer.contentsLost()); }
From source file:msi.gama.outputs.layers.charts.StandardXYItemRenderer.java
/** * Draws the visual representation of a single data item. * * @param g2//w w w .ja v a2 s . c o m * the graphics device. * @param state * the renderer state. * @param dataArea * the area within which the data is being drawn. * @param info * collects information about the drawing. * @param plot * the plot (can be used to obtain standard color information etc). * @param domainAxis * the domain axis. * @param rangeAxis * the range axis. * @param dataset * the dataset. * @param series * the series index (zero-based). * @param item * the item index (zero-based). * @param crosshairState * crosshair information for the plot (<code>null</code> permitted). * @param pass * the pass index. */ @Override public void drawItem(final Graphics2D g2, final XYItemRendererState state, final Rectangle2D dataArea, final PlotRenderingInfo info, final XYPlot plot, final ValueAxis domainAxis, final ValueAxis rangeAxis, final XYDataset dataset, final int series, final int item, final CrosshairState crosshairState, final int pass) { boolean itemVisible = getItemVisible(series, item); // setup for collecting optional entity info... Shape entityArea = null; EntityCollection entities = null; if (info != null) { entities = info.getOwner().getEntityCollection(); } final PlotOrientation orientation = plot.getOrientation(); final Paint paint = getItemPaint(series, item); final Stroke seriesStroke = getItemStroke(series, item); g2.setPaint(paint); g2.setStroke(seriesStroke); // get the data point... final double x1 = dataset.getXValue(series, item); final double y1 = dataset.getYValue(series, item); if (Double.isNaN(x1) || Double.isNaN(y1)) { itemVisible = false; } final RectangleEdge xAxisLocation = plot.getDomainAxisEdge(); final RectangleEdge yAxisLocation = plot.getRangeAxisEdge(); final double transX1 = domainAxis.valueToJava2D(x1, dataArea, xAxisLocation); final double transY1 = rangeAxis.valueToJava2D(y1, dataArea, yAxisLocation); if (getPlotLines()) { if (this.drawSeriesLineAsPath) { final State s = (State) state; if (s.getSeriesIndex() != series) { // we are starting a new series path s.seriesPath.reset(); s.lastPointGood = false; s.setSeriesIndex(series); } // update path to reflect latest point if (itemVisible && !Double.isNaN(transX1) && !Double.isNaN(transY1)) { float x = (float) transX1; float y = (float) transY1; if (orientation == PlotOrientation.HORIZONTAL) { x = (float) transY1; y = (float) transX1; } if (s.isLastPointGood()) { // TODO: check threshold s.seriesPath.lineTo(x, y); } else { s.seriesPath.moveTo(x, y); } s.setLastPointGood(true); } else { s.setLastPointGood(false); } if (item == dataset.getItemCount(series) - 1) { if (s.seriesIndex == series) { // draw path g2.setStroke(lookupSeriesStroke(series)); g2.setPaint(lookupSeriesPaint(series)); g2.draw(s.seriesPath); } } } else if (item != 0 && itemVisible) { // get the previous data point... final double x0 = dataset.getXValue(series, item - 1); final double y0 = dataset.getYValue(series, item - 1); if (!Double.isNaN(x0) && !Double.isNaN(y0)) { boolean drawLine = true; if (getPlotDiscontinuous()) { // only draw a line if the gap between the current and // previous data point is within the threshold final int numX = dataset.getItemCount(series); final double minX = dataset.getXValue(series, 0); final double maxX = dataset.getXValue(series, numX - 1); if (this.gapThresholdType == UnitType.ABSOLUTE) { drawLine = Math.abs(x1 - x0) <= this.gapThreshold; } else { drawLine = Math.abs(x1 - x0) <= (maxX - minX) / numX * getGapThreshold(); } } if (drawLine) { final double transX0 = domainAxis.valueToJava2D(x0, dataArea, xAxisLocation); final double transY0 = rangeAxis.valueToJava2D(y0, dataArea, yAxisLocation); // only draw if we have good values if (Double.isNaN(transX0) || Double.isNaN(transY0) || Double.isNaN(transX1) || Double.isNaN(transY1)) { return; } if (orientation == PlotOrientation.HORIZONTAL) { state.workingLine.setLine(transY0, transX0, transY1, transX1); } else if (orientation == PlotOrientation.VERTICAL) { state.workingLine.setLine(transX0, transY0, transX1, transY1); } if (state.workingLine.intersects(dataArea)) { g2.draw(state.workingLine); } } } } } // we needed to get this far even for invisible items, to ensure that // seriesPath updates happened, but now there is nothing more we need // to do for non-visible items... if (!itemVisible) { return; } if (getBaseShapesVisible()) { Shape shape = getItemShape(series, item); if (orientation == PlotOrientation.HORIZONTAL) { shape = ShapeUtilities.createTranslatedShape(shape, transY1, transX1); } else if (orientation == PlotOrientation.VERTICAL) { shape = ShapeUtilities.createTranslatedShape(shape, transX1, transY1); } if (shape.intersects(dataArea)) { if (getItemShapeFilled(series, item)) { g2.fill(shape); } else { g2.draw(shape); } } entityArea = shape; } if (getPlotImages()) { final Image image = getImage(plot, series, item, transX1, transY1); if (image != null) { final Point hotspot = getImageHotspot(plot, series, item, transX1, transY1, image); g2.drawImage(image, (int) (transX1 - hotspot.getX()), (int) (transY1 - hotspot.getY()), null); entityArea = new Rectangle2D.Double(transX1 - hotspot.getX(), transY1 - hotspot.getY(), image.getWidth(null), image.getHeight(null)); } } double xx = transX1; double yy = transY1; if (orientation == PlotOrientation.HORIZONTAL) { xx = transY1; yy = transX1; } // draw the item label if there is one... if (isItemLabelVisible(series, item)) { drawItemLabel(g2, orientation, dataset, series, item, xx, yy, y1 < 0.0); } final int domainAxisIndex = plot.getDomainAxisIndex(domainAxis); final int rangeAxisIndex = plot.getRangeAxisIndex(rangeAxis); updateCrosshairValues(crosshairState, x1, y1, domainAxisIndex, rangeAxisIndex, transX1, transY1, orientation); // add an entity for the item... if (entities != null && isPointInRect(dataArea, xx, yy)) { addEntity(entities, entityArea, dataset, series, item, xx, yy); } }
From source file:org.jfree.experimental.swt.SWTGraphics2D.java
/** * Draws an image./*w ww .j a v a 2 s .c o m*/ * * @param image the image (<code>null</code> not permitted). * @param x the x-coordinate. * @param y the y-coordinate. * @param width the width. * @param height the height. * @param bgcolor the background colour. * @param observer an image observer. * * @return A boolean. */ public boolean drawImage(Image image, int x, int y, int width, int height, Color bgcolor, ImageObserver observer) { ParamChecks.nullNotPermitted(image, "image"); int w = image.getWidth(null); int h = image.getHeight(null); if (w == -1 || h == -1) { return false; } Paint savedPaint = getPaint(); fill(new Rectangle2D.Double(x, y, w, h)); setPaint(savedPaint); return drawImage(image, x, y, width, height, observer); }
From source file:Jpeg.java
public JpegInfo(Image image) { Components = new Object[NumberOfComponents]; compWidth = new int[NumberOfComponents]; compHeight = new int[NumberOfComponents]; BlockWidth = new int[NumberOfComponents]; BlockHeight = new int[NumberOfComponents]; imageobj = image;//from w w w . j av a 2 s . c om imageWidth = image.getWidth(null); imageHeight = image.getHeight(null); Comment = "JPEG Encoder Copyright 1998, James R. Weeks and BioElectroMech. "; getYCCArray(); }