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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 <i18npool/languagetag.hxx>
26 : #include <vcl/metric.hxx>
27 :
28 : #include <com/sun/star/rendering/PanoseProportion.hpp>
29 :
30 : #include "canvasfont.hxx"
31 : #include "textlayout.hxx"
32 :
33 : using namespace ::com::sun::star;
34 :
35 :
36 : namespace vclcanvas
37 : {
38 0 : CanvasFont::CanvasFont( const rendering::FontRequest& rFontRequest,
39 : const uno::Sequence< beans::PropertyValue >& ,
40 : const geometry::Matrix2D& rFontMatrix,
41 : rendering::XGraphicDevice& rDevice,
42 : const OutDevProviderSharedPtr& rOutDevProvider ) :
43 : CanvasFont_Base( m_aMutex ),
44 : maFont( Font( rFontRequest.FontDescription.FamilyName,
45 : rFontRequest.FontDescription.StyleName,
46 : Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
47 : maFontRequest( rFontRequest ),
48 : mpRefDevice( &rDevice ),
49 0 : mpOutDevProvider( rOutDevProvider )
50 : {
51 0 : maFont->SetAlign( ALIGN_BASELINE );
52 0 : maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==com::sun::star::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
53 0 : maFont->SetVertical( (rFontRequest.FontDescription.IsVertical==com::sun::star::util::TriState_YES) ? sal_True : sal_False );
54 :
55 : // TODO(F2): improve panose->vclenum conversion
56 0 : maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
57 0 : maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
58 : maFont->SetPitch(
59 : rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
60 0 : ? PITCH_FIXED : PITCH_VARIABLE);
61 :
62 0 : maFont->SetLanguage( LanguageTag( rFontRequest.Locale).getLanguageType( false));
63 :
64 : // adjust to stretched/shrinked font
65 0 : if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
66 : {
67 0 : OutputDevice& rOutDev( rOutDevProvider->getOutDev() );
68 :
69 0 : const bool bOldMapState( rOutDev.IsMapModeEnabled() );
70 0 : rOutDev.EnableMapMode(sal_False);
71 :
72 0 : const Size aSize = rOutDev.GetFontMetric( *maFont ).GetSize();
73 :
74 0 : const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
75 0 : double fStretch = (rFontMatrix.m00 + rFontMatrix.m01);
76 :
77 0 : if( !::basegfx::fTools::equalZero( fDividend) )
78 0 : fStretch /= fDividend;
79 :
80 0 : const long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
81 :
82 0 : maFont->SetWidth( nNewWidth );
83 :
84 0 : rOutDev.EnableMapMode(bOldMapState);
85 : }
86 0 : }
87 :
88 0 : void SAL_CALL CanvasFont::disposing()
89 : {
90 0 : SolarMutexGuard aGuard;
91 :
92 0 : mpOutDevProvider.reset();
93 0 : mpRefDevice.clear();
94 0 : }
95 :
96 0 : uno::Reference< rendering::XTextLayout > SAL_CALL CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) throw (uno::RuntimeException)
97 : {
98 0 : SolarMutexGuard aGuard;
99 :
100 0 : if( !mpRefDevice.is() )
101 0 : return uno::Reference< rendering::XTextLayout >(); // we're disposed
102 :
103 : return new TextLayout( aText,
104 : nDirection,
105 : nRandomSeed,
106 : Reference( this ),
107 : mpRefDevice,
108 0 : mpOutDevProvider);
109 : }
110 :
111 0 : rendering::FontRequest SAL_CALL CanvasFont::getFontRequest( ) throw (uno::RuntimeException)
112 : {
113 0 : SolarMutexGuard aGuard;
114 :
115 0 : return maFontRequest;
116 : }
117 :
118 0 : rendering::FontMetrics SAL_CALL CanvasFont::getFontMetrics( ) throw (uno::RuntimeException)
119 : {
120 0 : SolarMutexGuard aGuard;
121 :
122 0 : OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
123 0 : VirtualDevice aVDev( rOutDev );
124 0 : aVDev.SetFont(getVCLFont());
125 0 : const ::FontMetric& aMetric( aVDev.GetFontMetric() );
126 :
127 : return rendering::FontMetrics(
128 0 : aMetric.GetAscent(),
129 0 : aMetric.GetDescent(),
130 0 : aMetric.GetIntLeading(),
131 0 : aMetric.GetExtLeading(),
132 : 0,
133 0 : aMetric.GetDescent() / 2.0,
134 0 : aMetric.GetAscent() / 2.0);
135 : }
136 :
137 0 : uno::Sequence< double > SAL_CALL CanvasFont::getAvailableSizes( ) throw (uno::RuntimeException)
138 : {
139 0 : SolarMutexGuard aGuard;
140 :
141 : // TODO(F1)
142 0 : return uno::Sequence< double >();
143 : }
144 :
145 0 : uno::Sequence< beans::PropertyValue > SAL_CALL CanvasFont::getExtraFontProperties( ) throw (uno::RuntimeException)
146 : {
147 0 : SolarMutexGuard aGuard;
148 :
149 : // TODO(F1)
150 0 : return uno::Sequence< beans::PropertyValue >();
151 : }
152 :
153 : #define IMPLEMENTATION_NAME "VCLCanvas::CanvasFont"
154 : #define SERVICE_NAME "com.sun.star.rendering.CanvasFont"
155 :
156 0 : ::rtl::OUString SAL_CALL CanvasFont::getImplementationName() throw( uno::RuntimeException )
157 : {
158 0 : return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
159 : }
160 :
161 0 : sal_Bool SAL_CALL CanvasFont::supportsService( const ::rtl::OUString& ServiceName ) throw( uno::RuntimeException )
162 : {
163 0 : return ServiceName == SERVICE_NAME;
164 : }
165 :
166 0 : uno::Sequence< ::rtl::OUString > SAL_CALL CanvasFont::getSupportedServiceNames() throw( uno::RuntimeException )
167 : {
168 0 : uno::Sequence< ::rtl::OUString > aRet(1);
169 0 : aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
170 :
171 0 : return aRet;
172 : }
173 :
174 0 : ::Font CanvasFont::getVCLFont() const
175 : {
176 0 : return *maFont;
177 : }
178 0 : }
179 :
180 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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