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Diffstat (limited to 'libjava/gnu/awt/xlib/XGraphicsConfiguration.java')
| -rw-r--r-- | libjava/gnu/awt/xlib/XGraphicsConfiguration.java | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/libjava/gnu/awt/xlib/XGraphicsConfiguration.java b/libjava/gnu/awt/xlib/XGraphicsConfiguration.java deleted file mode 100644 index 7d52711..0000000 --- a/libjava/gnu/awt/xlib/XGraphicsConfiguration.java +++ /dev/null @@ -1,550 +0,0 @@ -/* Copyright (C) 2000, 2003 Free Software Foundation - - This file is part of libgcj. - -This software is copyrighted work licensed under the terms of the -Libgcj License. Please consult the file "LIBGCJ_LICENSE" for -details. */ - -package gnu.awt.xlib; - -import java.awt.GraphicsConfiguration; -import java.awt.Rectangle; -import java.awt.Graphics2D; -import java.awt.Graphics; -import java.awt.GraphicsDevice; -import java.awt.Point; -import java.awt.Color; -import java.awt.color.ColorSpace; -import java.awt.Font; -import java.awt.image.*; -import java.awt.geom.AffineTransform; -import gnu.gcj.xlib.GC; -import gnu.gcj.xlib.Drawable; -import gnu.gcj.xlib.Window; -import gnu.gcj.xlib.XImage; -import gnu.gcj.xlib.Visual; -import gnu.gcj.xlib.Colormap; -import gnu.gcj.xlib.XColor; -import gnu.gcj.xlib.Screen; -import gnu.gcj.xlib.Display; -import gnu.gcj.xlib.XException; -import gnu.java.awt.Buffers; -import java.util.Enumeration; -import java.util.Hashtable; - -public class XGraphicsConfiguration extends GraphicsConfiguration -{ - //public abstract GraphicsDevice getDevice(); - - Visual visual; - int format; - Colormap colormap; - ColorModel imageCM; - ColorModel pixelCM; - private static final int CACHE_SIZE_PER_DISPLAY = 10; - static FontMetricsCache fontMetricsCache = new FontMetricsCache (); - - /** Font metrics cache class. Caches at most CACHE_SIZE_PER_DISPLAY - * XFontMetrics objects for each display device. When a display's cache - * gets full, the least-recently used entry is overwritten. - * XXX: lruOrder rolls over after a few billion operations, so it might - * on very rare occasions misinterpret which is the oldest entry - */ - static class FontMetricsCache - { - private java.util.Hashtable displays = new java.util.Hashtable (); - - /** Font metrics cache for a display device - */ - class PerDisplayCache - { - private int lruCount = 0; - private java.util.Hashtable entries = new java.util.Hashtable (); - - class CacheEntry - { - int lruOrder; - XFontMetrics fm; - Font font; - } - - /** Get an entry (null if not there) and update LRU ordering - */ - XFontMetrics get (Font font) - { - CacheEntry entry = (CacheEntry)entries.get (font); - if (entry != null) - { - entry.lruOrder = lruCount++; - } - return (entry==null) ? null : entry.fm; - } - - /** Put an entry in the cache, eliminating the oldest entry if - * the cache is at capacity. - */ - void put (Font font, XFontMetrics fontMetrics) - { - if (entries.size () >= CACHE_SIZE_PER_DISPLAY) - { - // cache is full -- eliminate the oldest entry - // slow operation, but shouldn't happen very often - int maxAge = 0; - CacheEntry oldestEntry = null; - int referenceCount = lruCount; - for (Enumeration e = entries.elements (); e.hasMoreElements ();) - { - CacheEntry entry = (CacheEntry)e.nextElement (); - if ((referenceCount-entry.lruOrder) > maxAge) - { - maxAge = referenceCount-entry.lruOrder; - oldestEntry = entry; - } - } - if (oldestEntry != null) - entries.remove (oldestEntry.font); - } - CacheEntry newEntry = new CacheEntry (); - newEntry.lruOrder = lruCount++; - newEntry.fm = fontMetrics; - newEntry.font = font; - entries.put (font,newEntry); - } - } - - /** Get the font metrics for a font, if it is present in the cache. - * @param font The AWT font for which to find the font metrics - * @param display The display, to select the cached entries for that display - * @return The font metrics, or null if not cached - */ - XFontMetrics get (Font font, Display display) - { - PerDisplayCache cache = (PerDisplayCache)displays.get (display); - return (cache==null) ? null : cache.get (font); - } - - /** Put a font in the cache - * @param font The font - * @param display The display - * @param fontMetrics The font metrics - */ - void put (Font font, Display display, XFontMetrics fontMetrics) - { - PerDisplayCache cache = (PerDisplayCache)displays.get (display); - if (cache == null) - { - cache = new PerDisplayCache (); - displays.put (display,cache); - } - cache.put (font,fontMetrics); - } - } - - public XGraphicsConfiguration(Visual visual) - { - this.visual = visual; - } - - public BufferedImage createCompatibleImage(int width, int height) - { - XImage ximg = new XImage(visual, width, height, - false // do not auto allocate memory - ); - - Point origin = new Point(0, 0); - WritableRaster raster = createRasterForXImage(ximg, origin); - - /* This is not a good way of doing this. Multiple toolkits may - want to share the BufferedImage. */ - Hashtable props = new Hashtable(); - props.put("gnu.gcj.xlib.XImage", ximg); - props.put("java.awt.GraphicsConfiguration", this); - - BufferedImage bimg = new BufferedImage(imageCM,raster, false, props); - - DataBuffer dataB = raster.getDataBuffer(); - attachData(ximg, dataB, 0); - return bimg; - } - - WritableRaster createRasterForXImage(XImage ximage, Point origin) - { - if (imageCM == null) prepareColorModel(ximage); - - /* - This will not work, since it creates a sample model that - does not necessarily match the format of the XImage. - - WritableRaster raster = - imageCM.createCompatibleWritableRaster(width, height); */ - - // Create a sample model matching the XImage: - - SampleModel imageSM = null; - - int width = ximage.getWidth(); - int height = ximage.getHeight(); - int bitsPerPixel = ximage.getBitsPerPixel(); - int dataType = - Buffers.smallestAppropriateTransferType(bitsPerPixel); - int bitsPerDataElement = DataBuffer.getDataTypeSize(dataType); - int scanlineStride = ximage.getBytesPerLine()*8/bitsPerDataElement; - - if (imageCM instanceof IndexColorModel) - { - int[] bandOffsets = {0}; - imageSM = new ComponentSampleModel(dataType, - width, height, - 1, // pixel stride - scanlineStride, - bandOffsets); - } - else if (imageCM instanceof PackedColorModel) - { - PackedColorModel pcm = (PackedColorModel) imageCM; - int[] masks = pcm.getMasks(); - - imageSM = new SinglePixelPackedSampleModel(dataType, - width, height, - scanlineStride, - masks); - } - - if (imageSM == null) - { - throw new UnsupportedOperationException("creating sample model " + - "for " + imageCM + - " not implemented"); - } - - WritableRaster raster = Raster.createWritableRaster(imageSM, origin); - return raster; - } - - - - /** - * Attach a the memory of a data buffer to an XImage - * structure. [This method is not gnu.awt.xlib specific, and should - * maybe be moved to a different location.] - * - * @param offset Offset to data. The given offset does not include - * data buffer offset, which will also be added. - */ - static void attachData(XImage ximage, DataBuffer dataB, int offset) - { - offset += dataB.getOffset(); - switch (dataB.getDataType()) - { - case DataBuffer.TYPE_BYTE: - ximage.setData(((DataBufferByte) dataB).getData(), offset); - break; - case DataBuffer.TYPE_USHORT: - ximage.setData(((DataBufferUShort) dataB).getData(), offset); - break; - case DataBuffer.TYPE_INT: - ximage.setData(((DataBufferInt) dataB).getData(), offset); - break; - default: - throw - new UnsupportedOperationException("Do not know how to " + - "set data for data " + - "type " + - dataB.getDataType()); - } - } - - void prepareColorModel(XImage ximage) - { - format = ximage.getFormat(); - int bitsPerPixel = ximage.getBitsPerPixel(); - switch (format) { - case XImage.ZPIXMAP_FORMAT: - calcZPixmapModels(bitsPerPixel); - break; - - default: - throw new UnsupportedOperationException("unimplemented format"); - } - } - - void calcZPixmapModels(int bitsPerPixel) - { - switch (visual.getVisualClass()) - { - case Visual.VC_TRUE_COLOR: - calcDecomposedRGBModels(bitsPerPixel); - break; - case Visual.VC_PSEUDO_COLOR: - calcPseudoColorModels(bitsPerPixel); - break; - default: - String msg = "unimplemented visual class"; - throw new UnsupportedOperationException(msg); - } - } - - void calcDecomposedRGBModels(int bitsPerPixel) - { - int dataType = Buffers.smallestAppropriateTransferType(bitsPerPixel); - - - if (DataBuffer.getDataTypeSize(dataType) == bitsPerPixel) - { - ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); - - imageCM = new DirectColorModel(cs, - visual.getDepth(), - visual.getRedMask(), - visual.getGreenMask(), - visual.getBlueMask(), - 0, // no alpha - false, - dataType); - } - else - { - throw new - UnsupportedOperationException("unimplemented bits per pixel"); - } - } - - void calcPseudoColorModels(int bitsPerPixel) - { - if (colormap == null) - colormap = visual.getScreen().getDefaultColormap(); - - XColor[] colArray = colormap.getXColors(); - - int numCol = colArray.length; - byte[] rmap = new byte[numCol]; - byte[] gmap = new byte[numCol]; - byte[] bmap = new byte[numCol]; - byte[] amap = new byte[numCol]; - - for (int i=0; i < numCol; i++) - { - XColor color = colArray[i]; - if (color.getFlags() == Colormap.FLAG_SHARED) - { - rmap[i] = (byte) (color.getRed() >> 8); - gmap[i] = (byte) (color.getGreen() >> 8); - bmap[i] = (byte) (color.getBlue() >> 8); - amap[i] = (byte) 0xff; - } // else, leave default zero values... - } - - imageCM = new IndexColorModel(visual.getDepth(), numCol, - rmap, gmap, bmap, amap); - } - - /** - * Gets the associated device that this configuration describes. - * - * @return the device - */ - public GraphicsDevice getDevice() - { - throw new UnsupportedOperationException("not implemented"); - } - - /** - * Returns a buffered image optimized to this device, so that blitting can - * be supported in the buffered image. - * - * @param w the width of the buffer - * @param h the height of the buffer - * @return the buffered image, or null if none is supported - */ - public BufferedImage createCompatibleImage(int width, - int height, - int transparency) - { - throw new UnsupportedOperationException("not implemented"); - } - - /** - * Returns a buffered volatile image optimized to this device, so that - * blitting can be supported in the buffered image. Because the buffer is - * volatile, it can be optimized by native graphics accelerators. - * - * @param w the width of the buffer - * @param h the height of the buffer - * @return the buffered image, or null if none is supported - * @see Component#createVolatileImage(int, int) - * @since 1.4 - */ - public VolatileImage createCompatibleVolatileImage(int w, int h) - { - throw new UnsupportedOperationException("not implemented"); - } - - /** - * FIXME: I'm not sure which color model that should be returned here. - */ - public ColorModel getColorModel() - { - if (pixelCM == null) - preparePixelCM(); - return pixelCM; - } - - void preparePixelCM() - { - switch (visual.getVisualClass()) - { - case Visual.VC_TRUE_COLOR: - pixelCM = new DirectColorModel(visual.getDepth(), - visual.getRedMask(), - visual.getGreenMask(), - visual.getBlueMask()); - break; - case Visual.VC_PSEUDO_COLOR: - - if (colormap == null) - colormap = visual.getScreen().getDefaultColormap(); - - XColor[] colArray = colormap.getXColors(); - - int numCol = colArray.length; - byte[] rmap = new byte[numCol]; - byte[] gmap = new byte[numCol]; - byte[] bmap = new byte[numCol]; - byte[] amap = new byte[numCol]; - - for (int i=0; i < numCol; i++) - { - XColor color = colArray[i]; - if (color.getFlags() == Colormap.FLAG_SHARED) { - rmap[i] = (byte) (color.getRed() >> 8); - gmap[i] = (byte) (color.getGreen() >> 8); - bmap[i] = (byte) (color.getBlue() >> 8); - amap[i] = (byte) 0xff; - } // else, leave default zero values... - - } - - pixelCM = new IndexColorModel(visual.getDepth(), numCol, - rmap, gmap, bmap, amap); - break; - default: - throw new UnsupportedOperationException("not implemented"); - } - } - - public ColorModel getColorModel(int transparency) - { - throw new UnsupportedOperationException("not implemented"); - } - - public AffineTransform getDefaultTransform() - { - throw new UnsupportedOperationException("not implemented"); - } - - public AffineTransform getNormalizingTransform() - { - throw new UnsupportedOperationException("not implemented"); - } - - public Rectangle getBounds() - { - throw new UnsupportedOperationException("not implemented"); - } - - Visual getVisual() - { - return visual; - } - - /* FIXME: This should be moved to XGraphicsDevice... */ - XFontMetrics getXFontMetrics (java.awt.Font awtFont) - { - // If the metrics object for this font is already cached, use it. - // Otherwise create and cache it. - Display display = visual.getScreen ().getDisplay (); - XFontMetrics fm = fontMetricsCache.get (awtFont,display); - if (fm == null) - { - String foundry = "*"; - String family = awtFont.getName (); - String weight = awtFont.isBold () ? "bold" : "medium"; - String slant = awtFont.isItalic () ? "i" : "r"; - String sWidth = "*"; - String addStyle = ""; - String pixelSize = "*"; - String pointSize = awtFont.getSize () + "0"; - String xres = "*"; - String yres = "*"; - String spacing = "*"; - String averageWidth = "*"; - String charset = "iso10646-1"; // because we use functions like XDrawString16 - - String logicalFontDescription = - "-" + // FontNameRegistry prefix - foundry + "-" + family + "-" + weight + "-" + - slant + "-" + sWidth + "-" + addStyle + "-" + - pixelSize + "-" + pointSize + "-" + xres + "-" + - yres + "-" + spacing + "-" + averageWidth + "-"; - - // Try to load a Unicode font. If that doesn't work, try again, without - // specifying the character set. - try - { - gnu.gcj.xlib.Font xfont = new gnu.gcj.xlib.Font (display, logicalFontDescription + charset); - fm = new XFontMetrics (xfont, awtFont); - } - catch (XException e) - { - gnu.gcj.xlib.Font xfont = new gnu.gcj.xlib.Font (display, logicalFontDescription + "*-*"); - fm = new XFontMetrics (xfont, awtFont); - } - fontMetricsCache.put (awtFont,display,fm); - } - return fm; - } - - int getPixel(Color color) - { - /* FIXME: consider an integer technique whenever - * the ColorModel is 8 bits per color. - * The problem with using integers is that it doesn't work unless - * the colors are 8 bits each (as in the array), since ColorModel.getDataElement(int[],int) - * expects non-normalized values. For example, in a 16-bit display mode, you - * would typically have 5 bits each for red and blue, and 6 bits for green. - int[] components = - { - color.getRed (), - color.getGreen (), - color.getBlue (), - 0xff - }; - */ - - int[] unnormalizedComponents = { 0, 0, 0, 0xff }; - ColorModel cm = getColorModel (); - if (color != null) - { - float[] normalizedComponents = - { - ((float)color.getRed ()) / 255F, - ((float)color.getGreen ()) / 255F, - ((float)color.getBlue ()) / 255F, - 1 - }; - cm.getUnnormalizedComponents(normalizedComponents, 0, - unnormalizedComponents, 0); - } - return cm.getDataElement (unnormalizedComponents, 0); - } - - /** - * @since 1.5 - */ - public VolatileImage createCompatibleVolatileImage (int width, int height, - int transparency) - { - return null; - } -} |