Revision 37962 trunk/libraries/libRaster/src/org/gvsig/raster/grid/render/ImageDrawer.java
| ImageDrawer.java | ||
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import org.gvsig.raster.grid.GridTransparency; |
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import org.gvsig.raster.process.RasterTask; |
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import org.gvsig.raster.process.RasterTaskQueue; |
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import org.gvsig.raster.util.Cancellable; |
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/** |
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* Objeto para la escritura de datos desde un buffer a un objeto Image. En este nivel de |
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* renderizado no se gestiona extents, ni rotaciones ni coordenadas del mundo, solo la |
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* Si no hay tres bandas, por ejemplo una y el flag es true esta ser? replicada |
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* en R, G y B, en caso de ser false la banda ser? dibujada en su posici?n (R, G o B) |
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* y en las otras bandas se rellenar? con 0. |
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* @param cancel |
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* |
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* @param transparentBand. Si es true la banda 4 es alpha y si es false no lo es. |
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* |
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* @return java.awt.Image con el buffer dibujado. |
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* @throws InterruptedException |
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*/ |
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public Image drawBufferOverImageObject(boolean replicateBand, int[] renderBands) throws InterruptedException {
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public Image drawBufferOverImageObject(boolean replicateBand, int[] renderBands, Cancellable cancel) throws InterruptedException {
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if (rasterBuf == null || width == 0 || height == 0) |
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return null; |
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|
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transparency.getAlphaBand() != null && |
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(transparency.getAlphaBand().getDataType() != IBuffer.TYPE_BYTE)) |
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transparency.setAlphaBand(convertToByte(transparency.getAlphaBand())); |
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drawWithTransparency(image, data, (step != null)); |
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drawWithTransparency(image, data, (step != null), cancel);
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} else |
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drawByte(image, data, (step != null)); |
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drawByte(image, data, (step != null), cancel);
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step = null; |
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return image; |
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* @param supersampling true si se necesita supersamplear y false si no se necesita |
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* @throws InterruptedException |
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*/ |
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private void drawByte(BufferedImage image, byte[] data, boolean supersampling) throws InterruptedException {
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private void drawByte(BufferedImage image, byte[] data, boolean supersampling, Cancellable cancel) throws InterruptedException {
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RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString()); |
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if (supersampling) {
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int[] c = new int[width]; |
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calcSupersamplingStepsArrays(r, c); |
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for (int row = 0; row < height; row++) {
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if (cancel.isCanceled()) |
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return; |
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for (int col = 0; col < width; col++) {
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try {
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rasterBuf.getElemByte(r[row], c[col], data); |
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task.manageEvent(task.getEvent()); |
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} |
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} else {
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for (int row = 0; row < rasterBuf.getHeight(); row++) {
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if (row % 200 == 0) |
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if (cancel.isCanceled()) |
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return; |
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for (int col = 0; col < rasterBuf.getWidth(); col++) {
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try {
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rasterBuf.getElemByte(row, col, data); |
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* @param image BufferedImage sobre el que se dibuja |
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* @param data buffer vacio. Se trata de un array de bytes donde cada elemento representa una banda. |
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* @param supersampling true si se necesita supersamplear y false si no se necesita |
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* @param cancel |
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* @throws InterruptedException |
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*/ |
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private void drawWithTransparency(BufferedImage image, byte[] data, boolean supersampling) throws InterruptedException {
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private void drawWithTransparency(BufferedImage image, byte[] data, boolean supersampling, Cancellable cancel) throws InterruptedException {
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RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString()); |
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int value = 0; |
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GridTransparency transparency = rendering.getLastTransparency(); |
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int[] c = new int[width]; |
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calcSupersamplingStepsArrays(r, c); |
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for (int row = 0; row < height; row++) {
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if (cancel.isCanceled()) |
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return; |
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for (int col = 0; col < width; col++) {
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try {
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rasterBuf.getElemByte(r[row], c[col], data); |
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} |
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} else {
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for (int row = 0; row < rasterBuf.getHeight(); row++) {
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if (cancel.isCanceled()) |
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return; |
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for (int col = 0; col < rasterBuf.getWidth(); col++) {
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try {
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rasterBuf.getElemByte(row, col, data); |
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