1 files changed, 154 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ImageList.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ImageList.java
new file mode 100644
index 0000000000..cab405e065
--- /dev/null
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/ImageList.java
@@ -0,0 +1,154 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.swt.widgets;
+
+
+import org.eclipse.swt.internal.gtk.*;
+import org.eclipse.swt.graphics.*;
+
+class ImageList {
+	int /*long*/ [] pixbufs;
+	int width = -1, height = -1;
+	Image [] images;
+	
+public ImageList() {
+	images = new Image [4];
+	pixbufs = new int /*long*/ [4];
+}
+
+public int add (Image image) {
+	int index = 0;
+	while (index < images.length) {
+		if (images [index] != null) {
+			if (images [index].isDisposed ()) {
+				OS.g_object_unref (pixbufs [index]);
+				images [index] = null;
+				pixbufs [index] = 0;
+			}
+		}
+		if (images [index] == null) break;
+		index++;
+	}
+	if (index == images.length) {
+		Image [] newImages = new Image [images.length + 4];
+		System.arraycopy (images, 0, newImages, 0, images.length);
+		images = newImages;
+		int /*long*/ [] newPixbufs = new int /*long*/ [pixbufs.length + 4];
+		System.arraycopy (pixbufs, 0, newPixbufs, 0, pixbufs.length);
+		pixbufs = newPixbufs;
+	}
+	set (index, image);
+	return index;
+}
+
+public void dispose () {
+	if (pixbufs == null) return;
+	for (int index=0; index<pixbufs.length; index++) {
+		if (pixbufs [index] != 0) OS.g_object_unref (pixbufs [index]);
+	}
+	images = null;
+	pixbufs = null;
+}
+
+public Image get (int index) {
+	return images [index];
+}
+
+int /*long*/ getPixbuf (int index) {
+	return pixbufs [index];
+}
+
+public int indexOf (Image image) {
+	if (image == null) return -1;
+	for (int index=0; index<images.length; index++) {
+		if (image == images [index]) return index;
+	}
+	return -1;
+}
+
+int indexOf (int /*long*/ pixbuf) {
+	if (pixbuf == 0) return -1;
+	for (int index=0; index<images.length; index++) {
+		if (pixbuf == pixbufs [index]) return index;
+	}
+	return -1;
+}
+
+public boolean isDisposed () {
+	return images == null;
+}
+
+public void put (int index, Image image) {
+	int count = images.length;
+	if (!(0 <= index && index < count)) return;
+	if (image != null) {
+		set (index, image);
+	} else {
+		images [index] = null;	
+		if (pixbufs [index] != 0) OS.g_object_unref (pixbufs [index]);
+		pixbufs [index] = 0;
+	}
+}
+
+public void remove (Image image) {
+	if (image == null) return;
+	for (int index=0; index<images.length; index++) {
+		if (image == images [index]){
+			OS.g_object_unref (pixbufs [index]);
+			images [index] = null;
+			pixbufs [index] = 0;
+		}
+	}
+}
+
+void set (int index, Image image) {
+	int [] w = new int [1], h = new int [1];
+ 	OS.gdk_drawable_get_size (image.pixmap, w, h);
+	int /*long*/ pixbuf = Display.createPixbuf (image);
+	if (width == -1 || height == -1) {
+		width = w [0];
+		height = h [0];
+	}
+	if (w [0] != width || h [0] != height) {
+		int /*long*/ scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, width, height, OS.GDK_INTERP_BILINEAR);
+		OS.g_object_unref (pixbuf);
+		pixbuf = scaledPixbuf;
+	}
+	int /*long*/ oldPixbuf = pixbufs [index];
+	if (oldPixbuf != 0) {
+		if (images [index] == image) {
+			OS.gdk_pixbuf_copy_area (pixbuf, 0, 0, width, height, oldPixbuf, 0, 0);
+			OS.g_object_unref (pixbuf);
+			pixbuf = oldPixbuf;
+		} else {
+			OS.g_object_unref (oldPixbuf);
+		}
+	}
+	pixbufs [index] = pixbuf;
+	images [index] = image;	
+}
+
+public int size () {
+	int result = 0;
+	for (int index=0; index<images.length; index++) {
+		if (images [index] != null) {
+			if (images [index].isDisposed ()) {
+				OS.g_object_unref (pixbufs [index]);
+				images [index] = null;
+				pixbufs [index] = 0;
+			}
+			if (images [index] != null) result++;
+		}
+	}
+	return result;
+}
+
+}