LibreOffice Module canvas (master) 1
dx_textlayout.cxx
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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
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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 <sal/config.h>
21#include <sal/log.hxx>
22
26
27#include "dx_bitmap.hxx"
28#include "dx_spritecanvas.hxx"
29#include "dx_textlayout.hxx"
31
32using namespace ::com::sun::star;
33
34namespace dxcanvas
35{
36 TextLayout::TextLayout( const rendering::StringContext& aText,
37 sal_Int8 nDirection,
38 sal_Int64 /*nRandomSeed*/,
39 const CanvasFont::ImplRef& rFont ) :
41 maText( aText ),
42 maLogicalAdvancements(),
43 mpFont( rFont ),
44 mnTextDirection( nDirection )
45 {
46 }
47
48 TextLayout::~TextLayout()
49 {
50 }
51
52 void SAL_CALL TextLayout::disposing()
53 {
54 mpFont.clear();
55 }
56
57 // XTextLayout
58 uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > > SAL_CALL TextLayout::queryTextShapes( )
59 {
60 // TODO
61 return uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > >();
62 }
63
64 uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryInkMeasures( )
65 {
66 // TODO
67 return uno::Sequence< geometry::RealRectangle2D >();
68 }
69
70 uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryMeasures( )
71 {
72 // TODO
73 return uno::Sequence< geometry::RealRectangle2D >();
74 }
75
76 uno::Sequence< double > SAL_CALL TextLayout::queryLogicalAdvancements( )
77 {
78 ::osl::MutexGuard aGuard( m_aMutex );
79
80 return maLogicalAdvancements;
81 }
82
83 void SAL_CALL TextLayout::applyLogicalAdvancements( const uno::Sequence< double >& aAdvancements )
84 {
85 ::osl::MutexGuard aGuard( m_aMutex );
86
87 if( aAdvancements.getLength() != maText.Length )
88 {
89 SAL_WARN("canvas.directx", "TextLayout::applyLogicalAdvancements(): mismatching number of advancements" );
90 throw lang::IllegalArgumentException();
91 }
92
93 maLogicalAdvancements = aAdvancements;
94 }
95
96 geometry::RealRectangle2D SAL_CALL TextLayout::queryTextBounds( )
97 {
98 ::osl::MutexGuard aGuard( m_aMutex );
99
100 uno::Reference< rendering::XGraphicDevice > xGraphicDevice;
101 ::dxcanvas::TextLayoutDrawHelper aDrawHelper(xGraphicDevice);
102
103 // render text
104 const geometry::RealRectangle2D aBounds(
105 aDrawHelper.queryTextBounds(
106 maText,
107 maLogicalAdvancements,
108 mpFont,
109 mpFont->getFontMatrix()));
110
111 return aBounds;
112 }
113
114 double SAL_CALL TextLayout::justify( double /*nSize*/ )
115 {
116 // TODO
117 return 0.0;
118 }
119
120 double SAL_CALL TextLayout::combinedJustify( const uno::Sequence< uno::Reference< rendering::XTextLayout > >& /*aNextLayouts*/,
121 double /*nSize*/ )
122 {
123 // TODO
124 return 0.0;
125 }
126
127 rendering::TextHit SAL_CALL TextLayout::getTextHit( const geometry::RealPoint2D& /*aHitPoint*/ )
128 {
129 // TODO
130 return rendering::TextHit();
131 }
132
133 rendering::Caret SAL_CALL TextLayout::getCaret( sal_Int32 /*nInsertionIndex*/,
134 sal_Bool /*bExcludeLigatures*/ )
135 {
136 // TODO
137 return rendering::Caret();
138 }
139
140 sal_Int32 SAL_CALL TextLayout::getNextInsertionIndex( sal_Int32 /*nStartIndex*/,
141 sal_Int32 /*nCaretAdvancement*/,
142 sal_Bool /*bExcludeLigatures*/ )
143 {
144 // TODO
145 return 0;
146 }
147
148 uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryVisualHighlighting( sal_Int32 /*nStartIndex*/,
149 sal_Int32 /*nEndIndex*/ )
150 {
151 // TODO
152 return uno::Reference< rendering::XPolyPolygon2D >();
153 }
154
155 uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryLogicalHighlighting( sal_Int32 /*nStartIndex*/,
156 sal_Int32 /*nEndIndex*/ )
157 {
158 // TODO
159 return uno::Reference< rendering::XPolyPolygon2D >();
160 }
161
162 double SAL_CALL TextLayout::getBaselineOffset( )
163 {
164 // TODO
165 return 0.0;
166 }
167
168 sal_Int8 SAL_CALL TextLayout::getMainTextDirection( )
169 {
170 ::osl::MutexGuard aGuard( m_aMutex );
171
172 return mnTextDirection;
173 }
174
175 uno::Reference< rendering::XCanvasFont > SAL_CALL TextLayout::getFont( )
176 {
177 ::osl::MutexGuard aGuard( m_aMutex );
178
179 return mpFont;
180 }
181
182 rendering::StringContext SAL_CALL TextLayout::getText( )
183 {
184 ::osl::MutexGuard aGuard( m_aMutex );
185
186 return maText;
187 }
188
189 bool TextLayout::draw( const GraphicsSharedPtr& rGraphics,
190 const rendering::ViewState& rViewState,
191 const rendering::RenderState& rRenderState,
192 const ::basegfx::B2ISize& rOutputOffset,
193 const uno::Reference< rendering::XGraphicDevice >& xGraphicDevice,
194 bool bAlphaSurface ) const
195 {
196 ::osl::MutexGuard aGuard( m_aMutex );
197
198 ::dxcanvas::TextLayoutDrawHelper aDrawHelper(xGraphicDevice);
199
200 // render text
201 aDrawHelper.drawText(
202 rGraphics,
203 rViewState,
204 rRenderState,
205 rOutputOffset,
206 maText,
207 maLogicalAdvancements,
208 mpFont,
209 mpFont->getFontMatrix(),
210 bAlphaSurface,
211 mnTextDirection != 0);
212
213 return true;
214 }
215
216 OUString SAL_CALL TextLayout::getImplementationName()
217 {
218 return "DXCanvas::TextLayout";
219 }
220
221 sal_Bool SAL_CALL TextLayout::supportsService( const OUString& ServiceName )
222 {
223 return cppu::supportsService( this, ServiceName );
224 }
225
226 uno::Sequence< OUString > SAL_CALL TextLayout::getSupportedServiceNames()
227 {
228 return { "com.sun.star.rendering.TextLayout" };
229 }
230}
231
232/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Text maText
rtl::Reference< CanvasFont > ImplRef
css::geometry::RealRectangle2D queryTextBounds(const css::rendering::StringContext &rText, const css::uno::Sequence< double > &rLogicalAdvancements, const css::uno::Reference< css::rendering::XCanvasFont > &rCanvasFont, const css::geometry::Matrix2D &rFontMatrix)
TextLayout(const css::rendering::StringContext &aText, sal_Int8 nDirection, sal_Int64 nRandomSeed, const CanvasFont::ImplRef &rFont)
std::mutex m_aMutex
#define SAL_WARN(area, stream)
bool CPPUHELPER_DLLPUBLIC supportsService(css::lang::XServiceInfo *implementation, rtl::OUString const &name)
::cppu::WeakComponentImplHelper< css::rendering::XTextLayout, css::lang::XServiceInfo > TextLayout_Base
std::shared_ptr< Gdiplus::Graphics > GraphicsSharedPtr
Definition: dx_winstuff.hxx:58
std::optional< vcl::Font > mpFont
unsigned char sal_Bool
signed char sal_Int8