mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
/* vim:set ts=2 sw=2 sts=2 cin et: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <QIcon>
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#include <QStyle>
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#include <QApplication>
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#include <stdlib.h>
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#include <unistd.h>
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#include "nsMimeTypes.h"
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#include "nsIMIMEService.h"
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#include "nsIStringBundle.h"
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#include "nsNetUtil.h"
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#include "nsIURL.h"
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#include "prlink.h"
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#include "nsIconChannel.h"
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#include "nsGtkQtIconsConverter.h"
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NS_IMPL_ISUPPORTS2(nsIconChannel,
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nsIRequest,
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nsIChannel)
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static nsresult
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moz_qicon_to_channel(QImage *image, nsIURI *aURI,
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nsIChannel **aChannel)
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{
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NS_ENSURE_ARG_POINTER(image);
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int width = image->width();
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int height = image->height();
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NS_ENSURE_TRUE(height < 256 && width < 256 && height > 0 && width > 0,
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NS_ERROR_UNEXPECTED);
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const int n_channels = 4;
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long int buf_size = 2 + n_channels * height * width;
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uint8_t * const buf = (uint8_t*)NS_Alloc(buf_size);
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NS_ENSURE_TRUE(buf, NS_ERROR_OUT_OF_MEMORY);
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uint8_t *out = buf;
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*(out++) = width;
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*(out++) = height;
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const uchar * const pixels = image->bits();
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int rowextra = image->bytesPerLine() - width * n_channels;
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// encode the RGB data and the A data
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const uchar * in = pixels;
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for (int y = 0; y < height; ++y, in += rowextra) {
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for (int x = 0; x < width; ++x) {
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uint8_t r = *(in++);
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uint8_t g = *(in++);
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uint8_t b = *(in++);
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uint8_t a = *(in++);
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#define DO_PREMULTIPLY(c_) uint8_t(uint16_t(c_) * uint16_t(a) / uint16_t(255))
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#ifdef IS_LITTLE_ENDIAN
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*(out++) = DO_PREMULTIPLY(b);
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*(out++) = DO_PREMULTIPLY(g);
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*(out++) = DO_PREMULTIPLY(r);
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*(out++) = a;
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#else
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*(out++) = a;
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*(out++) = DO_PREMULTIPLY(r);
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*(out++) = DO_PREMULTIPLY(g);
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*(out++) = DO_PREMULTIPLY(b);
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#endif
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#undef DO_PREMULTIPLY
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}
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}
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NS_ASSERTION(out == buf + buf_size, "size miscalculation");
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nsresult rv;
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nsCOMPtr<nsIStringInputStream> stream =
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do_CreateInstance("@mozilla.org/io/string-input-stream;1", &rv);
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NS_ENSURE_SUCCESS(rv, rv);
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rv = stream->AdoptData((char*)buf, buf_size);
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_NewInputStreamChannel(aChannel, aURI, stream,
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NS_LITERAL_CSTRING(IMAGE_ICON));
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}
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nsresult
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nsIconChannel::Init(nsIURI* aURI)
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{
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nsCOMPtr<nsIMozIconURI> iconURI = do_QueryInterface(aURI);
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NS_ASSERTION(iconURI, "URI is not an nsIMozIconURI");
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nsAutoCString stockIcon;
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iconURI->GetStockIcon(stockIcon);
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nsAutoCString iconSizeString;
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iconURI->GetIconSize(iconSizeString);
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uint32_t desiredImageSize;
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iconURI->GetImageSize(&desiredImageSize);
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nsAutoCString iconStateString;
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iconURI->GetIconState(iconStateString);
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bool disabled = iconStateString.EqualsLiteral("disabled");
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QStyle::StandardPixmap sp_icon = (QStyle::StandardPixmap)0;
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nsCOMPtr <nsIGtkQtIconsConverter> converter = do_GetService("@mozilla.org/gtkqticonsconverter;1");
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if (converter) {
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int32_t res = 0;
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stockIcon.Cut(0,4);
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converter->Convert(stockIcon.get(), &res);
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sp_icon = (QStyle::StandardPixmap)res;
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// printf("ConvertIcon: icon:'%s' -> res:%i\n", stockIcon.get(), res);
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}
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if (!sp_icon)
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return NS_ERROR_FAILURE;
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QStyle *style = qApp->style();
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NS_ENSURE_TRUE(style, NS_ERROR_NULL_POINTER);
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QPixmap pixmap = style->standardIcon(sp_icon).pixmap(desiredImageSize, desiredImageSize, disabled?QIcon::Disabled:QIcon::Normal);
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QImage image = pixmap.toImage();
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return moz_qicon_to_channel(&image, iconURI,
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getter_AddRefs(mRealChannel));
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}
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