author | henryjen |
Mon, 28 Apr 2014 19:05:49 -0700 | |
changeset 24538 | 25bf8153fbfe |
parent 23647 | 41d22f2dbeb5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.awt; |
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import sun.awt.CustomCursor; |
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import java.awt.*; |
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import java.awt.image.*; |
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import sun.awt.image.ImageRepresentation; |
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/** |
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* A class to encapsulate a custom image-based cursor. |
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* |
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* @see Component#setCursor |
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* @author Thomas Ball |
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*/ |
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@SuppressWarnings("serial") // JDK-implementation class |
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public abstract class X11CustomCursor extends CustomCursor { |
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public X11CustomCursor(Image cursor, Point hotSpot, String name) |
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throws IndexOutOfBoundsException { |
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super(cursor, hotSpot, name); |
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} |
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protected void createNativeCursor(Image im, int[] pixels, int width, int height, |
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int xHotSpot, int yHotSpot) { |
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24538
25bf8153fbfe
8039642: Fix raw and unchecked warnings in sun.awt.*
henryjen
parents:
23647
diff
changeset
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class CCount implements Comparable<CCount> { |
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int color; |
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int count; |
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public CCount(int cl, int ct) { |
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color = cl; |
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count = ct; |
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} |
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24538
25bf8153fbfe
8039642: Fix raw and unchecked warnings in sun.awt.*
henryjen
parents:
23647
diff
changeset
|
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public int compareTo(CCount cc) { |
25bf8153fbfe
8039642: Fix raw and unchecked warnings in sun.awt.*
henryjen
parents:
23647
diff
changeset
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return cc.count - count; |
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} |
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} |
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int tmp[] = new int[pixels.length]; |
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for (int i=0; i<pixels.length; i++) { |
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if ((pixels[i] & 0xff000000) == 0) { |
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tmp[i] = -1; |
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} else { |
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tmp[i] = pixels[i] & 0x00ffffff; |
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} |
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} |
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java.util.Arrays.sort(tmp); |
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int fc = 0x000000; |
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int bc = 0xffffff; |
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CCount cols[] = new CCount[pixels.length]; |
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int is = 0; |
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int numColors = 0; |
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while ( is < pixels.length ) { |
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if (tmp[is] != -1) { |
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cols[numColors++] = new CCount(tmp[is], 1); |
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break; |
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} |
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is ++; |
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} |
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for (int i = is+1; i < pixels.length; i++) { |
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if (tmp[i] != cols[numColors-1].color) { |
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cols[numColors++] = new CCount(tmp[i], 1); |
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} else { |
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cols[numColors-1].count ++; |
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} |
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} |
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java.util.Arrays.sort(cols, 0, numColors); |
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if (numColors > 0) fc = cols[0].color; |
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int fcr = (fc >> 16) & 0x000000ff; |
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int fcg = (fc >> 8) & 0x000000ff; |
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int fcb = (fc >> 0) & 0x000000ff; |
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int rdis = 0; |
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int gdis = 0; |
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int bdis = 0; |
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for (int j = 1; j < numColors; j++) { |
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int rr = (cols[j].color >> 16) & 0x000000ff; |
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int gg = (cols[j].color >> 8) & 0x000000ff; |
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int bb = (cols[j].color >> 0) & 0x000000ff; |
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rdis = rdis + cols[j].count * rr; |
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gdis = gdis + cols[j].count * gg; |
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bdis = bdis + cols[j].count * bb; |
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} |
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int rest = pixels.length - ((numColors > 0) ? cols[0].count : 0); |
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// 4653170 Avoid divide / zero exception |
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if (rest > 0) { |
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rdis = rdis / rest - fcr; |
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gdis = gdis / rest - fcg; |
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bdis = bdis / rest - fcb; |
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} |
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rdis = (rdis*rdis + gdis*gdis + bdis*bdis) / 2; |
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// System.out.println(" rdis is "+ rdis); |
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for (int j = 1; j < numColors; j++) { |
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int rr = (cols[j].color >> 16) & 0x000000ff; |
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int gg = (cols[j].color >> 8) & 0x000000ff; |
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int bb = (cols[j].color >> 0) & 0x000000ff; |
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if ( (rr-fcr)*(rr-fcr) + (gg-fcg)*(gg-fcg) + (bb-fcb)*(bb-fcb) |
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>= rdis ) { |
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bc = cols[j].color; |
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break; |
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} |
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} |
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int bcr = (bc >> 16) & 0x000000ff; |
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int bcg = (bc >> 8) & 0x000000ff; |
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int bcb = (bc >> 0) & 0x000000ff; |
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// On Solaris 2.5.x, the above code for cursor of any size runs fine |
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// but on Solaris 2.6, the width of a cursor has to be 8 divisible, |
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// otherwise, the cursor could be displayed as garbaged. |
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// To work around the 2.6 problem, the following code pads any cursor |
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// with a transparent area to make a new cursor of width 8 multiples. |
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// --- Bug 4148455 |
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int wNByte = (width + 7)/8; |
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int tNByte = wNByte * height; |
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byte[] xorMask = new byte[tNByte]; |
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byte[] andMask = new byte[tNByte]; |
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for (int i = 0; i < width; i++) { |
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int omask = 1 << (i % 8); |
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for (int j = 0; j < height; j++) { |
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int ip = j*width + i; |
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int ibyte = j*wNByte + i/8; |
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if ((pixels[ip] & 0xff000000) != 0) { |
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andMask[ibyte] |= omask; |
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} |
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int pr = (pixels[ip] >> 16) & 0x000000ff; |
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int pg = (pixels[ip] >> 8) & 0x000000ff; |
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int pb = (pixels[ip] >> 0) & 0x000000ff; |
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if ( (pr-fcr)*(pr-fcr) + (pg-fcg)*(pg-fcg) + (pb-fcb)*(pb-fcb) |
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<= (pr-bcr)*(pr-bcr) + (pg-bcg)*(pg-bcg) + (pb-bcb)*(pb-bcb) ) { |
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// show foreground color |
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xorMask[ibyte] |= omask; |
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} |
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} |
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} |
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createCursor(xorMask, andMask, 8*wNByte, height, fc, bc, xHotSpot, yHotSpot); |
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} |
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protected abstract void createCursor(byte[] xorMask, byte[] andMask, |
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int width, int height, |
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int fcolor, int bcolor, |
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int xHotSpot, int yHotSpot); |
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} |