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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libjava/] [gnu/] [gcj/] [xlib/] [Colormap.java] - Rev 781
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/* Copyright (C) 2000 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.gcj.xlib; import gnu.gcj.RawData; /** * An X11 color map resource. * * @author Rolf W. Rasmussen <rolfwr@ii.uib.no> */ public final class Colormap extends XID { Screen screen; public static final byte FLAG_SHARED = 1; public static final byte FLAG_NOT_SHARED = 2; public Colormap(Screen screen, int xid) { super(screen.getDisplay(), xid); this.screen = screen; } /** * Allocate color pixel. * * @param color The color to be allocated. If allocation is * successful, this object will be modified to reflect the actual * color that was allocated. * * @return the pixel value of the allocated color. */ public native long allocateColorPixel(XColor color); /** * Allocate a color consisting of the given RGB-triplet. * * @return a color object describing the allocated color. */ public XColor allocateColor(int r, int g, int b) { XColor color = new XColor(r, g, b); allocateColorPixel(color); return color; } /** * Get an array of all colors that currently resides in shared (read * only) color-cells in this color map. */ public native XColor[] getSharedColors(); /** * Get all colors currently residing in this color map. Colors that * are shared (read only) are marked as such by the color flags. * The indexes of the returned array will correspond to the * colorcells of the color map. Given a color <code>XColor * color</code> from a given color-cell, the expression * <code>color.getFlags() == Colormap.FLAG_SHARED</code> will check * whether the color-cell is shared. */ public native XColor[] getXColors(); /** * Convenience method used by native code to create fully * initialized arrays of XColor objects. */ private XColor[] newXColorArray(int n) { XColor[] array = new XColor[n]; for (int i=0; i<n; i++) array[i] = new XColor(); return array; } }
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