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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <canvas/debug.hxx>
21 :
22 : #include <com/sun/star/rendering/PanoseProportion.hpp>
23 : #include <cppuhelper/supportsservice.hxx>
24 :
25 : #include <rtl/math.hxx>
26 : #include <basegfx/numeric/ftools.hxx>
27 :
28 : #include <vcl/metric.hxx>
29 : #include <i18nlangtag/languagetag.hxx>
30 :
31 : #include "cairo_canvasfont.hxx"
32 : #include "cairo_textlayout.hxx"
33 :
34 : using namespace ::com::sun::star;
35 :
36 : namespace cairocanvas
37 : {
38 :
39 0 : CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest,
40 : const uno::Sequence< beans::PropertyValue >& /*rExtraFontProperties*/,
41 : const geometry::Matrix2D& rFontMatrix,
42 : const SurfaceProviderRef& rDevice ) :
43 : CanvasFont_Base( m_aMutex ),
44 : maFont( vcl::Font( rFontRequest.FontDescription.FamilyName,
45 : rFontRequest.FontDescription.StyleName,
46 0 : Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
47 : maFontRequest( rFontRequest ),
48 0 : mpRefDevice( rDevice )
49 : {
50 0 : maFont->SetAlign( ALIGN_BASELINE );
51 0 : maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
52 0 : maFont->SetVertical( rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES );
53 :
54 : // TODO(F2): improve panose->vclenum conversion
55 0 : maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
56 0 : maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
57 : maFont->SetPitch(
58 0 : rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
59 0 : ? PITCH_FIXED : PITCH_VARIABLE);
60 :
61 0 : maFont->SetLanguage( LanguageTag::convertToLanguageType( rFontRequest.Locale, false));
62 :
63 : // adjust to stretched/shrunk font
64 0 : if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
65 : {
66 0 : VclPtr<OutputDevice> pOutDev( mpRefDevice->getOutputDevice() );
67 :
68 0 : if( pOutDev )
69 : {
70 0 : const bool bOldMapState( pOutDev->IsMapModeEnabled() );
71 0 : pOutDev->EnableMapMode(false);
72 :
73 0 : const Size aSize = pOutDev->GetFontMetric( *maFont ).GetSize();
74 :
75 0 : const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
76 0 : double fStretch = (rFontMatrix.m00 + rFontMatrix.m01);
77 :
78 0 : if( !::basegfx::fTools::equalZero( fDividend) )
79 0 : fStretch /= fDividend;
80 :
81 0 : const long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
82 :
83 0 : maFont->SetWidth( nNewWidth );
84 :
85 0 : pOutDev->EnableMapMode(bOldMapState);
86 0 : }
87 : }
88 0 : }
89 :
90 0 : void SAL_CALL CanvasFont::disposing()
91 : {
92 0 : SolarMutexGuard aGuard;
93 :
94 0 : mpRefDevice.clear();
95 0 : }
96 :
97 0 : uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) throw (uno::RuntimeException, std::exception)
98 : {
99 0 : SolarMutexGuard aGuard;
100 :
101 0 : if( !mpRefDevice.is() )
102 0 : return uno::Reference< rendering::XTextLayout >(); // we're disposed
103 :
104 : return new TextLayout( aText,
105 : nDirection,
106 : nRandomSeed,
107 : Reference( this ),
108 0 : mpRefDevice );
109 : }
110 :
111 0 : rendering::FontRequest SAL_CALL CanvasFont::getFontRequest( ) throw (uno::RuntimeException, std::exception)
112 : {
113 0 : SolarMutexGuard aGuard;
114 :
115 0 : return maFontRequest;
116 : }
117 :
118 0 : rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( ) throw (uno::RuntimeException, std::exception)
119 : {
120 0 : SolarMutexGuard aGuard;
121 :
122 : // TODO(F1)
123 0 : return rendering::FontMetrics();
124 : }
125 :
126 0 : uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( ) throw (uno::RuntimeException, std::exception)
127 : {
128 0 : SolarMutexGuard aGuard;
129 :
130 : // TODO(F1)
131 0 : return uno::Sequence< double >();
132 : }
133 :
134 0 : uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( ) throw (uno::RuntimeException, std::exception)
135 : {
136 0 : SolarMutexGuard aGuard;
137 :
138 : // TODO(F1)
139 0 : return uno::Sequence< beans::PropertyValue >();
140 : }
141 :
142 0 : OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException, std::exception )
143 : {
144 0 : return OUString( "CairoCanvas::CanvasFont" );
145 : }
146 :
147 0 : sal_Bool SAL_CALL CanvasFont::supportsService( const OUString& ServiceName ) throw( uno::RuntimeException, std::exception )
148 : {
149 0 : return cppu::supportsService( this, ServiceName );
150 : }
151 :
152 0 : uno::Sequence< OUString > SAL_CALL CanvasFont::getSupportedServiceNames() throw( uno::RuntimeException, std::exception )
153 : {
154 0 : uno::Sequence< OUString > aRet(1);
155 0 : aRet[0] = "com.sun.star.rendering.CanvasFont";
156 :
157 0 : return aRet;
158 : }
159 :
160 0 : vcl::Font CanvasFont::getVCLFont() const
161 : {
162 0 : return *maFont;
163 : }
164 6 : }
165 :
166 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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