001: /*
002: * @(#)QtImageRepresentation.java 1.12 06/10/10
003: *
004: * Copyright 1990-2006 Sun Microsystems, Inc. All Rights Reserved.
005: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006: *
007: * This program is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU General Public License version
009: * 2 only, as published by the Free Software Foundation.
010: *
011: * This program is distributed in the hope that it will be useful, but
012: * WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * General Public License version 2 for more details (a copy is
015: * included at /legal/license.txt).
016: *
017: * You should have received a copy of the GNU General Public License
018: * version 2 along with this work; if not, write to the Free Software
019: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA
021: *
022: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023: * Clara, CA 95054 or visit www.sun.com if you need additional
024: * information or have any questions.
025: *
026: */
027:
028: package sun.awt.qt;
029:
030: import sun.awt.image.ImageRepresentation;
031: import java.awt.Color;
032: import java.awt.Graphics;
033: import java.awt.image.ColorModel;
034: import java.awt.Dimension;
035: import java.util.*;
036:
037: /** Defines the representation used to store images in Qt. The image is stored as a Qt pixmap
038: (server side image). */
039:
040: class QtImageRepresentation extends ImageRepresentation {
041:
042: /*
043: * Used to cache scaled qt pixmaps.
044: */
045: protected Map scaledImages = null;
046:
047: private static native void initIDs();
048:
049: static {
050: initIDs();
051: }
052:
053: QtImageRepresentation(QtImage image) {
054: super (image, 0);
055: }
056:
057: protected native void offscreenInit(Color bg);
058:
059: protected native boolean setBytePixels(int x, int y, int w, int h,
060: ColorModel model, byte pix[], int off, int scansize);
061:
062: protected native boolean setIntPixels(int x, int y, int w, int h,
063: ColorModel model, int pix[], int off, int scansize);
064:
065: protected native boolean finish(boolean force);
066:
067: /**
068: * Sets the native image representation (QImage). The implementation
069: * must make a copy (shallow or deep) of the image passed.
070: *
071: * @param qimage contains a pointer to QImage.
072: */
073: protected native void setNativeImage(int qimage);
074:
075: protected native synchronized void imageDraw(Graphics g, int x,
076: int y, Color c);
077:
078: protected native synchronized void imageStretch(Graphics g,
079: int dx1, int dy1, int dx2, int dy2, int sx1, int sy1,
080: int sx2, int sy2, Color c);
081:
082: protected synchronized void imageScale(Graphics g, int x, int y,
083: int w, int h, Color c, boolean done) {
084: if (scaledImages == null) {
085: scaledImages = new Hashtable();
086: }
087: if (done) {
088: Dimension d = new Dimension(w, h);
089: Integer i = (Integer) scaledImages.get(d);
090: int pm;
091: if (i != null) {
092: pm = i.intValue();
093: } else {
094: pm = createScaledQPixmap(w, h);
095: scaledImages.put(d, new Integer(pm));
096: }
097: drawQPixmap(g, pm, x, y, c);
098: }
099: }
100:
101: protected native int createScaledQPixmap(int w, int h);
102:
103: protected native void drawQPixmap(Graphics g, int pm, int x, int y,
104: Color c);
105:
106: protected native void disposeImageNative();
107:
108: /* Parameter pm is a pointer to the cached QPixmap entry. */
109: protected native void disposePixmapEntry(int pm);
110:
111: protected void disposeImage() {
112: if (scaledImages != null) {
113: int pm;
114: Integer i;
115: for (Iterator it = scaledImages.entrySet().iterator(); it
116: .hasNext();) {
117: i = (Integer) ((Map.Entry) it.next()).getValue();
118: disposePixmapEntry(i.intValue());
119: }
120: scaledImages.clear();
121: }
122: disposeImageNative();
123: }
124:
125: native int getRGB(ColorModel cm, int x, int y);
126:
127: native void getRGBs(ColorModel cm, int startX, int startY, int w,
128: int h, int[] rgbArray, int offset, int scansize);
129:
130: /* to determine the type for the BufferedImage */
131: native int getType();
132:
133: /* NOTE: x and y have to be values that are adjusted with the
134: Graphics origin, i.e. origX + g.originX and origY + g.origin Y.
135: This is so that we can avoid getting g.originX and g.originY
136: through JNI.
137: Returns true when it succeeds to draw, false otherwise.
138: */
139: native synchronized boolean imageDrawDirect(int gpointer, int x,
140: int y, Color c);
141:
142: boolean finishCalled = false;
143: boolean drawSucceeded = false;
144: }
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