/******************************************************************************* * Copyright (c) 2000, 2003 IBM Corporation and others. * All rights reserved. This program and the accompanying materials  * are made available under the terms of the Common Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/cpl-v10.html *  * Contributors: *     IBM Corporation - initial API and implementation *******************************************************************************/package org.eclipse.swt.widgets;import org.eclipse.swt.internal.win32.*;import org.eclipse.swt.*;import org.eclipse.swt.graphics.*;class ImageList {	int handle, refCount;	Image [] images;	static final int CREATE_FLAGS;	static {		if (OS.IsWinCE) {			CREATE_FLAGS = OS.ILC_MASK | OS.ILC_COLOR;		} else {			int flags = OS.ILC_MASK;			int hDC = OS.GetDC (0);			int bits = OS.GetDeviceCaps (hDC, OS.BITSPIXEL);			int planes = OS.GetDeviceCaps (hDC, OS.PLANES);			OS.ReleaseDC (0, hDC);			int depth = bits * planes;			switch (depth) {				case 4:					flags |= OS.ILC_COLOR4;					break;				case 8:					flags |= OS.ILC_COLOR8;					break;				case 16:					flags |= OS.ILC_COLOR16;					break;				case 24:					flags |= OS.ILC_COLOR24;					break;				case 32:					flags |= OS.ILC_COLOR32;					break;				default:					flags |= OS.ILC_COLOR;			}			CREATE_FLAGS = flags;		}	}	public ImageList () {	handle = OS.ImageList_Create (32, 32, CREATE_FLAGS, 16, 16);	images = new Image [4];}public int add (Image image) {	int count = OS.ImageList_GetImageCount (handle);	int index = 0;	while (index < count) {		if (images [index] != null) {			if (images [index].isDisposed ()) images [index] = null;		}		if (images [index] == null) break;		index++;	}	int [] cx = new int [1], cy = new int [1];	if (count == 0) {		Rectangle rect = image.getBounds();		cx [0] = rect.width;		cy [0] = rect.height;		OS.ImageList_SetIconSize (handle, cx [0], cy [0]);	}	int hImage = image.handle;	OS.ImageList_GetIconSize (handle, cx, cy);	switch (image.type) {		case SWT.BITMAP: {			int hBitmap = copyBitmap (hImage, cx [0], cy [0]);			int background = -1;			Color color = image.getBackground ();			if (color != null) background = color.handle;			if (index == count) {				if (background != -1) {					OS.ImageList_AddMasked (handle, hBitmap, background);				} else {					int hMask = createMask (hBitmap, cx [0], cy [0], background);					OS.ImageList_Add (handle, hBitmap, hMask);					OS.DeleteObject (hMask);				}			} else {				int hMask = createMask (hBitmap, cx [0], cy [0], background);				OS.ImageList_Replace (handle, index, hBitmap, hMask);				OS.DeleteObject (hMask);			}			OS.DeleteObject (hBitmap);			break;		}		case SWT.ICON: {			if (OS.IsWinCE) {					OS.ImageList_ReplaceIcon (handle, index == count ? -1 : index, hImage);			} else {				int hIcon = copyIcon (hImage, cx [0], cy [0]);				OS.ImageList_ReplaceIcon (handle, index == count ? -1 : index, hIcon);				OS.DestroyIcon (hIcon);			}			break;		}	}	if (index == images.length) {		Image [] newImages = new Image [images.length + 4];		System.arraycopy (images, 0, newImages, 0, images.length);		images = newImages;	}	images [index] = image;	return index;}int addRef() {	return ++refCount;}int copyBitmap (int hImage, int width, int height) {	BITMAP bm = new BITMAP ();	OS.GetObject (hImage, BITMAP.sizeof, bm);	int hDC = OS.GetDC (0);	int hdc1 = OS.CreateCompatibleDC (hDC);	OS.SelectObject (hdc1, hImage);	int hdc2 = OS.CreateCompatibleDC (hDC);	int hBitmap = OS.CreateCompatibleBitmap (hDC, width, height);	OS.SelectObject (hdc2, hBitmap);	if (width != bm.bmWidth || height != bm.bmHeight) {		if (!OS.IsWinCE) OS.SetStretchBltMode(hdc2, OS.COLORONCOLOR);		OS.StretchBlt (hdc2, 0, 0, width, height, hdc1, 0, 0, bm.bmWidth, bm.bmHeight, OS.SRCCOPY);	} else {		OS.BitBlt (hdc2, 0, 0, width, height, hdc1, 0, 0, OS.SRCCOPY);	}	OS.DeleteDC (hdc1);	OS.DeleteDC (hdc2);	OS.ReleaseDC (0, hDC);	return hBitmap;}int copyIcon (int hImage, int width, int height) {	if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED);	int hIcon = OS.CopyImage (hImage, OS.IMAGE_ICON, width, height, OS.LR_DEFAULTCOLOR);	return hIcon != 0 ? hIcon : hImage;}int createMask (int hBitmap, int width, int height, int background) {	int hMask = OS.CreateBitmap (width, height, 1, 1, null);	int hDC = OS.GetDC (0);	int hdc1 = OS.CreateCompatibleDC (hDC);	if (background != -1) {		OS.SelectObject (hdc1, hBitmap);		int hdc2 = OS.CreateCompatibleDC (hDC);		OS.SelectObject (hdc2, hMask);		OS.SetBkColor (hdc1, background);		OS.BitBlt (hdc2, 0, 0, width, height, hdc1, 0, 0, OS.SRCCOPY);		OS.DeleteDC (hdc2);	} else {		int hOldBitmap = OS.SelectObject (hdc1, hMask);		OS.PatBlt (hdc1, 0, 0, width, height, OS.BLACKNESS);		OS.SelectObject (hdc1, hOldBitmap);	}	OS.ReleaseDC (0, hDC);	OS.DeleteDC (hdc1);	return hMask;}public void dispose () {	if (handle != 0) OS.ImageList_Destroy (handle);	handle = 0;	images = null;}public Image get (int index) {	return images [index];}public int getHandle () {	return handle;}public Point getImageSize() {	int [] cx = new int [1], cy = new int [1];	OS.ImageList_GetIconSize (handle, cx, cy);	return new Point (cx [0], cy [0]);}public int indexOf (Image image) {	int count = OS.ImageList_GetImageCount (handle);	for (int i=0; i<count; i++) {		if (images [i] != null) {			if (images [i].isDisposed ()) images [i] = null;			if (images [i] != null && images [i].equals (image)) return i;		}	}	return -1;}public void put (int index, Image image) {	int count = OS.ImageList_GetImageCount (handle);	if (!(0 <= index && index < count)) return;	if (image != null) {		int [] cx = new int [1], cy = new int [1];		OS.ImageList_GetIconSize (handle, cx, cy);		int hImage = image.handle;		switch (image.type) {			case SWT.BITMAP: {				int background = -1;				Color color = image.getBackground ();				if (color != null) background = color.handle;				int hBitmap = copyBitmap (hImage, cx [0], cy [0]);				int hMask = createMask (hBitmap, cx [0], cy [0], background);				OS.ImageList_Replace (handle, index, hBitmap, hMask);				OS.DeleteObject (hBitmap);				OS.DeleteObject (hMask);				break;			}			case SWT.ICON: {				if (OS.IsWinCE) {					OS.ImageList_ReplaceIcon (handle, index, hImage);				} else {					int hIcon = copyIcon (hImage, cx [0], cy [0]);					OS.ImageList_ReplaceIcon (handle, index, hIcon);					OS.DestroyIcon (hIcon);				}				break;			}		}	}	images [index] = image;}public void remove (int index) {	int count = OS.ImageList_GetImageCount (handle);	if (!(0 <= index && index < count)) return;	OS.ImageList_Remove (handle, index);	System.arraycopy (images, index + 1, images, index, --count - index);	images [index] = null;}int removeRef() {	return --refCount;}public int size () {	int result = 0;	int count = OS.ImageList_GetImageCount (handle);	for (int i=0; i<count; i++) {		if (images [i] != null) {			if (images [i].isDisposed ()) images [i] = null;			if (images [i] != null) result++;		}	}	return result;}}