Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 135 insertions, 0 deletions

diff --git a/vcl/unx/gtk3/a11y/atkimage.cxx b/vcl/unx/gtk3/a11y/atkimage.cxx
new file mode 100644
index 000000000..da4965b86
--- /dev/null
+++ b/vcl/unx/gtk3/a11y/atkimage.cxx
@@ -0,0 +1,135 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <string_view>
+
+#include "atkwrapper.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleImage.hpp>
+
+using namespace ::com::sun::star;
+
+// FIXME
+static const gchar *
+getAsConst( std::u16string_view rString )
+{
+    static const int nMax = 10;
+    static OString aUgly[nMax];
+    static int nIdx = 0;
+    nIdx = (nIdx + 1) % nMax;
+    aUgly[nIdx] = OUStringToOString( rString, RTL_TEXTENCODING_UTF8 );
+    return aUgly[ nIdx ].getStr();
+}
+
+/// @throws uno::RuntimeException
+static css::uno::Reference<css::accessibility::XAccessibleImage>
+    getImage( AtkImage *pImage )
+{
+    AtkObjectWrapper *pWrap = ATK_OBJECT_WRAPPER( pImage );
+    if( pWrap )
+    {
+        if( !pWrap->mpImage.is() )
+        {
+            pWrap->mpImage.set(pWrap->mpContext, css::uno::UNO_QUERY);
+        }
+
+        return pWrap->mpImage;
+    }
+
+    return css::uno::Reference<css::accessibility::XAccessibleImage>();
+}
+
+extern "C" {
+
+static const gchar *
+image_get_image_description( AtkImage *image )
+{
+    try {
+        css::uno::Reference<css::accessibility::XAccessibleImage> pImage
+            = getImage( image );
+        if( pImage.is() )
+            return getAsConst( pImage->getAccessibleImageDescription() );
+    }
+    catch(const uno::Exception&) {
+        g_warning( "Exception in getAccessibleImageDescription()" );
+    }
+
+    return nullptr;
+}
+
+static void
+image_get_image_position( AtkImage     *image,
+                          gint         *x,
+                          gint         *y,
+                          AtkCoordType  coord_type )
+{
+    *x = *y = -1;
+    if( ATK_IS_COMPONENT( image ) )
+    {
+        gint nWidth = -1;
+        gint nHeight = -1;
+        atk_component_get_extents(ATK_COMPONENT(image), x, y, &nWidth, &nHeight, coord_type);
+    }
+    else
+        g_warning( "FIXME: no image position information" );
+}
+
+static void
+image_get_image_size( AtkImage *image,
+                      gint     *width,
+                      gint     *height )
+{
+    *width = *height = -1;
+    try {
+        css::uno::Reference<css::accessibility::XAccessibleImage> pImage
+            = getImage( image );
+        if( pImage.is() )
+        {
+            *width = pImage->getAccessibleImageWidth();
+            *height = pImage->getAccessibleImageHeight();
+        }
+    }
+    catch(const uno::Exception&) {
+        g_warning( "Exception in getAccessibleImageHeight() or Width" );
+    }
+}
+
+static gboolean
+image_set_image_description( AtkImage *, const gchar * )
+{
+    g_warning ("FIXME: no set image description");
+    return FALSE;
+}
+
+} // extern "C"
+
+void
+imageIfaceInit (AtkImageIface *iface)
+{
+  g_return_if_fail (iface != nullptr);
+
+  iface->set_image_description = image_set_image_description;
+  iface->get_image_description = image_get_image_description;
+  iface->get_image_position = image_get_image_position;
+  iface->get_image_size = image_get_image_size;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */