92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
// Copyright (c) 2019 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "shell/browser/ui/gtk_util.h"
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#include <gdk/gdk.h>
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#include <gtk/gtk.h>
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#include <stdint.h>
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#include "base/macros/remove_parens.h"
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#include "base/strings/stringize_macros.h"
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#include "electron/electron_gtk_stubs.h"
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#include "third_party/skia/include/core/SkBitmap.h"
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#include "third_party/skia/include/core/SkColor.h"
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#include "third_party/skia/include/core/SkUnPreMultiply.h"
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// The following utilities are pulled from
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// https://source.chromium.org/chromium/chromium/src/+/main:ui/gtk/select_file_dialog_linux_gtk.cc;l=44-75;drc=a03ba4ca94f75531207c3ea832d6a605cde77394
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namespace gtk_util {
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namespace {
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const char* GtkGettext(const char* str) {
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// ex: "gtk30". GTK_MAJOR_VERSION is #defined as an int in parenthesis,
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// like (3), so use base macros to remove parenthesis and stringize it
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static const char kGettextDomain[] =
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"gtk" STRINGIZE(BASE_REMOVE_PARENS(GTK_MAJOR_VERSION)) "0";
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return g_dgettext(kGettextDomain, str);
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}
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} // namespace
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const char* GetCancelLabel() {
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static const char* cancel = GtkGettext("_Cancel");
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return cancel;
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}
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const char* GetOpenLabel() {
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static const char* open = GtkGettext("_Open");
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return open;
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}
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const char* GetSaveLabel() {
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static const char* save = GtkGettext("_Save");
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return save;
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}
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const char* GetOkLabel() {
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static const char* ok = GtkGettext("_Ok");
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return ok;
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}
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const char* GetNoLabel() {
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static const char* no = GtkGettext("_No");
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return no;
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}
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const char* GetYesLabel() {
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static const char* yes = GtkGettext("_Yes");
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return yes;
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}
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GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap) {
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if (bitmap.isNull())
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return {};
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constexpr int kBytesPerPixel = 4;
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const auto [width, height] = bitmap.dimensions();
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std::vector<uint8_t> bytes;
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bytes.reserve(width * height * kBytesPerPixel);
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for (int y = 0; y < height; ++y) {
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for (int x = 0; x < width; ++x) {
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const SkColor pixel = bitmap.getColor(x, y);
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bytes.emplace_back(SkColorGetR(pixel));
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bytes.emplace_back(SkColorGetG(pixel));
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bytes.emplace_back(SkColorGetB(pixel));
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bytes.emplace_back(SkColorGetA(pixel));
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}
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}
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constexpr GdkColorspace kColorspace = GDK_COLORSPACE_RGB;
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constexpr gboolean kHasAlpha = true;
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constexpr int kBitsPerSample = 8;
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return gdk_pixbuf_new_from_bytes(
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g_bytes_new(std::data(bytes), std::size(bytes)), kColorspace, kHasAlpha,
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kBitsPerSample, width, height,
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gdk_pixbuf_calculate_rowstride(kColorspace, kHasAlpha, kBitsPerSample,
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width, height));
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}
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} // namespace gtk_util
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