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, 156 insertions, 0 deletions

diff --git a/canvas/source/cairo/cairo_canvasfont.cxx b/canvas/source/cairo/cairo_canvasfont.cxx
new file mode 100644
index 000000000..36c1733ef
--- /dev/null
+++ b/canvas/source/cairo/cairo_canvasfont.cxx
@@ -0,0 +1,156 @@
+/* -*- 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 <basegfx/numeric/ftools.hxx>
+#include <com/sun/star/rendering/PanoseProportion.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <rtl/math.hxx>
+#include <utility>
+#include <vcl/metric.hxx>
+
+#include "cairo_canvasfont.hxx"
+#include "cairo_textlayout.hxx"
+
+using namespace ::com::sun::star;
+
+namespace cairocanvas
+{
+
+    CanvasFont::CanvasFont( const rendering::FontRequest&                   rFontRequest,
+                            const uno::Sequence< beans::PropertyValue >&    /*rExtraFontProperties*/,
+                            const geometry::Matrix2D&                       rFontMatrix,
+                            SurfaceProviderRef                              rDevice ) :
+        CanvasFont_Base( m_aMutex ),
+        maFont( vcl::Font( rFontRequest.FontDescription.FamilyName,
+                      rFontRequest.FontDescription.StyleName,
+                      Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
+        maFontRequest( rFontRequest ),
+        mpRefDevice(std::move( rDevice ))
+    {
+        maFont->SetAlignment( ALIGN_BASELINE );
+        maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==css::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
+        maFont->SetVertical( rFontRequest.FontDescription.IsVertical==css::util::TriState_YES );
+
+        // TODO(F2): improve panose->vclenum conversion
+        maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
+        maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
+        maFont->SetPitch(
+                rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
+                    ? PITCH_FIXED : PITCH_VARIABLE);
+
+        maFont->SetLanguage( LanguageTag::convertToLanguageType( rFontRequest.Locale, false));
+
+        // adjust to stretched/shrunk font
+        if( ::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
+            return;
+
+        VclPtr<OutputDevice> pOutDev( mpRefDevice->getOutputDevice() );
+
+        if( !pOutDev )
+            return;
+
+        const bool bOldMapState( pOutDev->IsMapModeEnabled() );
+        pOutDev->EnableMapMode(false);
+
+        const Size aSize = pOutDev->GetFontMetric( *maFont ).GetFontSize();
+
+        const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
+        double fStretch = rFontMatrix.m00 + rFontMatrix.m01;
+
+        if( !::basegfx::fTools::equalZero( fDividend) )
+            fStretch /= fDividend;
+
+        const tools::Long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
+
+        maFont->SetAverageFontWidth( nNewWidth );
+
+        pOutDev->EnableMapMode(bOldMapState);
+    }
+
+    void SAL_CALL CanvasFont::disposing()
+    {
+        SolarMutexGuard aGuard;
+
+        mpRefDevice.clear();
+    }
+
+    uno::Reference< rendering::XTextLayout > SAL_CALL  CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed )
+    {
+        SolarMutexGuard aGuard;
+
+        if( !mpRefDevice.is() )
+            return uno::Reference< rendering::XTextLayout >(); // we're disposed
+
+        return new TextLayout( aText,
+                               nDirection,
+                               nRandomSeed,
+                               Reference( this ),
+                               mpRefDevice );
+    }
+
+    rendering::FontRequest SAL_CALL  CanvasFont::getFontRequest(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return maFontRequest;
+    }
+
+    rendering::FontMetrics SAL_CALL  CanvasFont::getFontMetrics(  )
+    {
+        // TODO(F1)
+        return rendering::FontMetrics();
+    }
+
+    uno::Sequence< double > SAL_CALL  CanvasFont::getAvailableSizes(  )
+    {
+        // TODO(F1)
+        return uno::Sequence< double >();
+    }
+
+    uno::Sequence< beans::PropertyValue > SAL_CALL  CanvasFont::getExtraFontProperties(  )
+    {
+        // TODO(F1)
+        return uno::Sequence< beans::PropertyValue >();
+    }
+
+    OUString SAL_CALL CanvasFont::getImplementationName()
+    {
+        return "CairoCanvas::CanvasFont";
+    }
+
+    sal_Bool SAL_CALL CanvasFont::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasFont::getSupportedServiceNames()
+    {
+        return { "com.sun.star.rendering.CanvasFont" };
+    }
+
+    vcl::Font const & CanvasFont::getVCLFont() const
+    {
+        return *maFont;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */