| /******************************************************************************* |
| * Copyright (c) 2000, 2016 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.internal; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.cairo.*; |
| import org.eclipse.swt.internal.gtk.*; |
| |
| public class ImageList { |
| long /*int*/ [] pixbufs; |
| int width = -1, height = -1; |
| Image [] images; |
| |
| public ImageList() { |
| images = new Image [4]; |
| pixbufs = new long /*int*/ [4]; |
| } |
| |
| public static long /*int*/ convertSurface(Image image) { |
| long /*int*/ newSurface = image.surface; |
| int type = Cairo.cairo_surface_get_type(newSurface); |
| if (type != Cairo.CAIRO_SURFACE_TYPE_IMAGE) { |
| Rectangle bounds = image.getBoundsInPixels(); |
| int format = Cairo.cairo_surface_get_content(newSurface) == Cairo.CAIRO_CONTENT_COLOR ? Cairo.CAIRO_FORMAT_RGB24 : Cairo.CAIRO_FORMAT_ARGB32; |
| newSurface = Cairo.cairo_image_surface_create(format, bounds.width, bounds.height); |
| if (newSurface == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| long /*int*/ cairo = Cairo.cairo_create(newSurface); |
| if (cairo == 0) SWT.error(SWT.ERROR_NO_HANDLES); |
| Cairo.cairo_set_operator(cairo, Cairo.CAIRO_OPERATOR_SOURCE); |
| Cairo.cairo_set_source_surface (cairo, image.surface, 0, 0); |
| Cairo.cairo_paint (cairo); |
| Cairo.cairo_destroy(cairo); |
| } else { |
| Cairo.cairo_surface_reference(newSurface); |
| } |
| return newSurface; |
| } |
| |
| public static long /*int*/ createPixbuf(Image image) { |
| long /*int*/ pixbuf; |
| if (OS.USE_CAIRO) { |
| long /*int*/ surface = convertSurface(image); |
| int format = Cairo.cairo_image_surface_get_format(surface); |
| int width = Cairo.cairo_image_surface_get_width(surface); |
| int height = Cairo.cairo_image_surface_get_height(surface); |
| boolean hasAlpha = format == Cairo.CAIRO_FORMAT_ARGB32; |
| pixbuf = OS.gdk_pixbuf_new (OS.GDK_COLORSPACE_RGB, hasAlpha, 8, width, height); |
| if (pixbuf == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| int stride = OS.gdk_pixbuf_get_rowstride (pixbuf); |
| long /*int*/ pixels = OS.gdk_pixbuf_get_pixels (pixbuf); |
| int oa, or, og, ob; |
| if (OS.BIG_ENDIAN) { |
| oa = 0; or = 1; og = 2; ob = 3; |
| } else { |
| oa = 3; or = 2; og = 1; ob = 0; |
| } |
| byte[] line = new byte[stride]; |
| long /*int*/ surfaceData = Cairo.cairo_image_surface_get_data(surface); |
| if (hasAlpha) { |
| for (int y = 0; y < height; y++) { |
| OS.memmove (line, surfaceData + (y * stride), stride); |
| for (int x = 0, offset = 0; x < width; x++, offset += 4) { |
| int a = line[offset + oa] & 0xFF; |
| int r = line[offset + or] & 0xFF; |
| int g = line[offset + og] & 0xFF; |
| int b = line[offset + ob] & 0xFF; |
| line[offset + 3] = (byte)a; |
| if (a != 0) { |
| line[offset + 0] = (byte)(((r * 0xFF) + a / 2) / a); |
| line[offset + 1] = (byte)(((g * 0xFF) + a / 2) / a); |
| line[offset + 2] = (byte)(((b * 0xFF) + a / 2) / a); |
| } |
| } |
| OS.memmove (pixels + (y * stride), line, stride); |
| } |
| } else { |
| int cairoStride = Cairo.cairo_image_surface_get_stride(surface); |
| byte[] cairoLine = new byte[cairoStride]; |
| for (int y = 0; y < height; y++) { |
| OS.memmove (cairoLine, surfaceData + (y * cairoStride), cairoStride); |
| for (int x = 0, offset = 0, cairoOffset = 0; x < width; x++, offset += 3, cairoOffset += 4) { |
| byte r = cairoLine[cairoOffset + or]; |
| byte g = cairoLine[cairoOffset + og]; |
| byte b = cairoLine[cairoOffset + ob]; |
| line[offset + 0] = r; |
| line[offset + 1] = g; |
| line[offset + 2] = b; |
| } |
| OS.memmove (pixels + (y * stride), line, stride); |
| } |
| } |
| Cairo.cairo_surface_destroy(surface); |
| } else { |
| int [] w = new int [1], h = new int [1]; |
| OS.gdk_pixmap_get_size(image.pixmap, w, h); |
| long /*int*/ colormap = OS.gdk_colormap_get_system (); |
| boolean hasMask = image.mask != 0 && OS.gdk_drawable_get_depth (image.mask) == 1; |
| if (hasMask) { |
| pixbuf = OS.gdk_pixbuf_new (OS.GDK_COLORSPACE_RGB, true, 8, w [0], h [0]); |
| if (pixbuf == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| OS.gdk_pixbuf_get_from_drawable (pixbuf, image.pixmap, colormap, 0, 0, 0, 0, w [0], h [0]); |
| long /*int*/ maskPixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB, false, 8, w [0], h [0]); |
| if (maskPixbuf == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| OS.gdk_pixbuf_get_from_drawable(maskPixbuf, image.mask, 0, 0, 0, 0, 0, w [0], h [0]); |
| int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); |
| long /*int*/ pixels = OS.gdk_pixbuf_get_pixels(pixbuf); |
| byte[] line = new byte[stride]; |
| int maskStride = OS.gdk_pixbuf_get_rowstride(maskPixbuf); |
| long /*int*/ maskPixels = OS.gdk_pixbuf_get_pixels(maskPixbuf); |
| byte[] maskLine = new byte[maskStride]; |
| for (int y=0; y<h[0]; y++) { |
| long /*int*/ offset = pixels + (y * stride); |
| OS.memmove(line, offset, stride); |
| long /*int*/ maskOffset = maskPixels + (y * maskStride); |
| OS.memmove(maskLine, maskOffset, maskStride); |
| for (int x=0; x<w[0]; x++) { |
| if (maskLine[x * 3] == 0) { |
| line[x * 4 + 3] = 0; |
| } |
| } |
| OS.memmove(offset, line, stride); |
| } |
| OS.g_object_unref(maskPixbuf); |
| } else { |
| ImageData data = image.getImageData (DPIUtil.getDeviceZoom ()); |
| boolean hasAlpha = data.getTransparencyType () == SWT.TRANSPARENCY_ALPHA; |
| pixbuf = OS.gdk_pixbuf_new (OS.GDK_COLORSPACE_RGB, hasAlpha, 8, w [0], h [0]); |
| if (pixbuf == 0) SWT.error (SWT.ERROR_NO_HANDLES); |
| OS.gdk_pixbuf_get_from_drawable (pixbuf, image.pixmap, colormap, 0, 0, 0, 0, w [0], h [0]); |
| if (hasAlpha) { |
| byte [] alpha = data.alphaData; |
| int stride = OS.gdk_pixbuf_get_rowstride (pixbuf); |
| long /*int*/ pixels = OS.gdk_pixbuf_get_pixels (pixbuf); |
| byte [] line = new byte [stride]; |
| for (int y = 0; y < h [0]; y++) { |
| long /*int*/ offset = pixels + (y * stride); |
| OS.memmove (line, offset, stride); |
| for (int x = 0; x < w [0]; x++) { |
| line [x*4+3] = alpha [y*w [0]+x]; |
| } |
| OS.memmove (offset, line, stride); |
| } |
| } |
| } |
| } |
| return pixbuf; |
| } |
| |
| 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; |
| long /*int*/ [] newPixbufs = new long /*int*/ [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]; |
| } |
| |
| public long /*int*/ 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; |
| } |
| |
| public int indexOf (long /*int*/ 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) { |
| long /*int*/ pixbuf = createPixbuf (image); |
| int w = OS.gdk_pixbuf_get_width(pixbuf); |
| int h = OS.gdk_pixbuf_get_height(pixbuf); |
| if (width == -1 || height == -1) { |
| width = w; |
| height = h; |
| } |
| if (w != width || h != height) { |
| long /*int*/ scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, width, height, OS.GDK_INTERP_BILINEAR); |
| OS.g_object_unref (pixbuf); |
| pixbuf = scaledPixbuf; |
| } |
| long /*int*/ 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; |
| } |
| |
| } |