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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 :
21 : #include <canvas/debug.hxx>
22 :
23 : #include <rtl/math.hxx>
24 : #include <basegfx/numeric/ftools.hxx>
25 : #include <i18nlangtag/languagetag.hxx>
26 : #include <vcl/metric.hxx>
27 :
28 : #include <com/sun/star/rendering/PanoseProportion.hpp>
29 : #include <cppuhelper/supportsservice.hxx>
30 :
31 : #include "canvasfont.hxx"
32 : #include "textlayout.hxx"
33 :
34 : using namespace ::com::sun::star;
35 :
36 :
37 : namespace vclcanvas
38 : {
39 0 : CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest,
40 : const uno::Sequence< beans::PropertyValue >& ,
41 : const geometry::Matrix2D& rFontMatrix,
42 : rendering::XGraphicDevice& rDevice,
43 : const OutDevProviderSharedPtr& rOutDevProvider ) :
44 : CanvasFont_Base( m_aMutex ),
45 : maFont( vcl::Font( rFontRequest.FontDescription.FamilyName,
46 : rFontRequest.FontDescription.StyleName,
47 0 : Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
48 : maFontRequest( rFontRequest ),
49 : mpRefDevice( &rDevice ),
50 0 : mpOutDevProvider( rOutDevProvider )
51 : {
52 0 : maFont->SetAlign( ALIGN_BASELINE );
53 0 : maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
54 0 : maFont->SetVertical( (rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES) ? sal_True : sal_False );
55 :
56 : // TODO(F2): improve panose->vclenum conversion
57 0 : maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
58 0 : maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
59 : maFont->SetPitch(
60 0 : rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
61 0 : ? PITCH_FIXED : PITCH_VARIABLE);
62 :
63 0 : maFont->SetLanguage( LanguageTag::convertToLanguageType( rFontRequest.Locale, false));
64 :
65 : // adjust to stretched/shrunk font
66 0 : if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
67 : {
68 0 : OutputDevice& rOutDev( rOutDevProvider->getOutDev() );
69 :
70 0 : const bool bOldMapState( rOutDev.IsMapModeEnabled() );
71 0 : rOutDev.EnableMapMode(false);
72 :
73 0 : const Size aSize = rOutDev.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 : rOutDev.EnableMapMode(bOldMapState);
86 : }
87 0 : }
88 :
89 0 : void SAL_CALL CanvasFont::disposing()
90 : {
91 0 : SolarMutexGuard aGuard;
92 :
93 0 : mpOutDevProvider.reset();
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 : mpRefDevice,
109 0 : mpOutDevProvider);
110 : }
111 :
112 0 : rendering::FontRequest SAL_CALL CanvasFont::getFontRequest( ) throw (uno::RuntimeException, std::exception)
113 : {
114 0 : SolarMutexGuard aGuard;
115 :
116 0 : return maFontRequest;
117 : }
118 :
119 0 : rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( ) throw (uno::RuntimeException, std::exception)
120 : {
121 0 : SolarMutexGuard aGuard;
122 :
123 0 : OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
124 0 : VirtualDevice aVDev( rOutDev );
125 0 : aVDev.SetFont(getVCLFont());
126 0 : const ::FontMetric& aMetric( aVDev.GetFontMetric() );
127 :
128 : return rendering::FontMetrics(
129 0 : aMetric.GetAscent(),
130 0 : aMetric.GetDescent(),
131 0 : aMetric.GetIntLeading(),
132 0 : aMetric.GetExtLeading(),
133 : 0,
134 0 : aMetric.GetDescent() / 2.0,
135 0 : aMetric.GetAscent() / 2.0);
136 : }
137 :
138 0 : uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( ) throw (uno::RuntimeException, std::exception)
139 : {
140 0 : SolarMutexGuard aGuard;
141 :
142 : // TODO(F1)
143 0 : return uno::Sequence< double >();
144 : }
145 :
146 0 : uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( ) throw (uno::RuntimeException, std::exception)
147 : {
148 0 : SolarMutexGuard aGuard;
149 :
150 : // TODO(F1)
151 0 : return uno::Sequence< beans::PropertyValue >();
152 : }
153 :
154 0 : OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException, std::exception )
155 : {
156 0 : return OUString( "VCLCanvas::CanvasFont" );
157 : }
158 :
159 0 : sal_Bool SAL_CALL CanvasFont::supportsService( const OUString& ServiceName ) throw( uno::RuntimeException, std::exception )
160 : {
161 0 : return cppu::supportsService( this, ServiceName );
162 : }
163 :
164 0 : uno::Sequence< OUString > SAL_CALL CanvasFont::getSupportedServiceNames() throw( uno::RuntimeException, std::exception )
165 : {
166 0 : uno::Sequence< OUString > aRet(1);
167 0 : aRet[0] = "com.sun.star.rendering.CanvasFont";
168 :
169 0 : return aRet;
170 : }
171 :
172 0 : vcl::Font CanvasFont::getVCLFont() const
173 : {
174 0 : return *maFont;
175 : }
176 0 : }
177 :
178 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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