693 lines
26 KiB
C++
693 lines
26 KiB
C++
/* -*- 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 <math.h>
|
|
|
|
#include <canvas/debug.hxx>
|
|
#include <canvas/verbosetrace.hxx>
|
|
#include <cppuhelper/supportsservice.hxx>
|
|
#include <tools/diagnose_ex.h>
|
|
|
|
#include <vcl/metric.hxx>
|
|
#include <vcl/virdev.hxx>
|
|
|
|
#ifdef WNT
|
|
#ifdef max
|
|
#undef max
|
|
#endif
|
|
#ifdef min
|
|
#undef min
|
|
#endif
|
|
#endif
|
|
#include <vcl/sysdata.hxx>
|
|
|
|
#include <basegfx/matrix/b2dhommatrix.hxx>
|
|
#include <basegfx/numeric/ftools.hxx>
|
|
|
|
#include <boost/scoped_array.hpp>
|
|
|
|
#include "cairo_textlayout.hxx"
|
|
#include "cairo_spritecanvas.hxx"
|
|
|
|
#ifdef CAIRO_HAS_QUARTZ_SURFACE
|
|
#include <cairo-quartz.h>
|
|
#elif defined CAIRO_HAS_WIN32_SURFACE
|
|
# include "cairo_win32_cairo.hxx"
|
|
# include <cairo-win32.h>
|
|
#elif defined CAIRO_HAS_FT_FONT
|
|
# include <cairo-ft.h>
|
|
#else
|
|
# error Native API needed.
|
|
#endif
|
|
|
|
#ifdef IOS
|
|
#include <CoreText/CoreText.h>
|
|
#endif
|
|
|
|
using namespace ::cairo;
|
|
using namespace ::com::sun::star;
|
|
|
|
namespace cairocanvas
|
|
{
|
|
namespace
|
|
{
|
|
void setupLayoutMode( OutputDevice& rOutDev,
|
|
sal_Int8 nTextDirection )
|
|
{
|
|
// TODO(P3): avoid if already correctly set
|
|
ComplexTextLayoutMode nLayoutMode = TEXT_LAYOUT_DEFAULT;
|
|
switch( nTextDirection )
|
|
{
|
|
case rendering::TextDirection::WEAK_LEFT_TO_RIGHT:
|
|
break;
|
|
case rendering::TextDirection::STRONG_LEFT_TO_RIGHT:
|
|
nLayoutMode = TEXT_LAYOUT_BIDI_STRONG;
|
|
break;
|
|
case rendering::TextDirection::WEAK_RIGHT_TO_LEFT:
|
|
nLayoutMode = TEXT_LAYOUT_BIDI_RTL;
|
|
break;
|
|
case rendering::TextDirection::STRONG_RIGHT_TO_LEFT:
|
|
nLayoutMode = TEXT_LAYOUT_BIDI_RTL | TEXT_LAYOUT_BIDI_STRONG;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// set calculated layout mode. Origin is always the left edge,
|
|
// as required at the API spec
|
|
rOutDev.SetLayoutMode( nLayoutMode | TEXT_LAYOUT_TEXTORIGIN_LEFT );
|
|
}
|
|
|
|
bool compareFallbacks(const SystemGlyphData&rA, const SystemGlyphData &rB)
|
|
{
|
|
return rA.fallbacklevel < rB.fallbacklevel;
|
|
}
|
|
}
|
|
|
|
TextLayout::TextLayout( const rendering::StringContext& aText,
|
|
sal_Int8 nDirection,
|
|
sal_Int64 /*nRandomSeed*/,
|
|
const CanvasFont::Reference& rFont,
|
|
const SurfaceProviderRef& rRefDevice ) :
|
|
TextLayout_Base( m_aMutex ),
|
|
maText( aText ),
|
|
maLogicalAdvancements(),
|
|
mpFont( rFont ),
|
|
mpRefDevice( rRefDevice ),
|
|
mnTextDirection( nDirection )
|
|
{
|
|
}
|
|
|
|
TextLayout::~TextLayout()
|
|
{
|
|
}
|
|
|
|
void SAL_CALL TextLayout::disposing()
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
mpFont.clear();
|
|
mpRefDevice.clear();
|
|
}
|
|
|
|
// XTextLayout
|
|
uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > > SAL_CALL TextLayout::queryTextShapes( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > >();
|
|
}
|
|
|
|
uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryInkMeasures( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return uno::Sequence< geometry::RealRectangle2D >();
|
|
}
|
|
|
|
uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryMeasures( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return uno::Sequence< geometry::RealRectangle2D >();
|
|
}
|
|
|
|
uno::Sequence< double > SAL_CALL TextLayout::queryLogicalAdvancements( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
return maLogicalAdvancements;
|
|
}
|
|
|
|
void SAL_CALL TextLayout::applyLogicalAdvancements( const uno::Sequence< double >& aAdvancements ) throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
if( aAdvancements.getLength() != maText.Length )
|
|
{
|
|
OSL_TRACE( "TextLayout::applyLogicalAdvancements(): mismatching number of advancements" );
|
|
throw lang::IllegalArgumentException();
|
|
}
|
|
|
|
maLogicalAdvancements = aAdvancements;
|
|
}
|
|
|
|
geometry::RealRectangle2D SAL_CALL TextLayout::queryTextBounds( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
OutputDevice* pOutDev = mpRefDevice->getOutputDevice();
|
|
if( !pOutDev )
|
|
return geometry::RealRectangle2D();
|
|
|
|
VirtualDevice aVDev( *pOutDev );
|
|
aVDev.SetFont( mpFont->getVCLFont() );
|
|
|
|
// need metrics for Y offset, the XCanvas always renders
|
|
// relative to baseline
|
|
const ::FontMetric& aMetric( aVDev.GetFontMetric() );
|
|
|
|
setupLayoutMode( aVDev, mnTextDirection );
|
|
|
|
const sal_Int32 nAboveBaseline( -aMetric.GetIntLeading() - aMetric.GetAscent() );
|
|
const sal_Int32 nBelowBaseline( aMetric.GetDescent() );
|
|
|
|
if( maLogicalAdvancements.getLength() )
|
|
{
|
|
return geometry::RealRectangle2D( 0, nAboveBaseline,
|
|
maLogicalAdvancements[ maLogicalAdvancements.getLength()-1 ],
|
|
nBelowBaseline );
|
|
}
|
|
else
|
|
{
|
|
return geometry::RealRectangle2D( 0, nAboveBaseline,
|
|
aVDev.GetTextWidth(
|
|
maText.Text,
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) ),
|
|
nBelowBaseline );
|
|
}
|
|
}
|
|
|
|
double SAL_CALL TextLayout::justify( double /*nSize*/ ) throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
double SAL_CALL TextLayout::combinedJustify( const uno::Sequence< uno::Reference< rendering::XTextLayout > >& /*aNextLayouts*/,
|
|
double /*nSize*/ ) throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
rendering::TextHit SAL_CALL TextLayout::getTextHit( const geometry::RealPoint2D& /*aHitPoint*/ ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return rendering::TextHit();
|
|
}
|
|
|
|
rendering::Caret SAL_CALL TextLayout::getCaret( sal_Int32 /*nInsertionIndex*/,
|
|
sal_Bool /*bExcludeLigatures*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return rendering::Caret();
|
|
}
|
|
|
|
sal_Int32 SAL_CALL TextLayout::getNextInsertionIndex( sal_Int32 /*nStartIndex*/,
|
|
sal_Int32 /*nCaretAdvancement*/,
|
|
sal_Bool /*bExcludeLigatures*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return 0;
|
|
}
|
|
|
|
uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryVisualHighlighting( sal_Int32 /*nStartIndex*/,
|
|
sal_Int32 /*nEndIndex*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return uno::Reference< rendering::XPolyPolygon2D >();
|
|
}
|
|
|
|
uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryLogicalHighlighting( sal_Int32 /*nStartIndex*/,
|
|
sal_Int32 /*nEndIndex*/ ) throw (lang::IndexOutOfBoundsException, uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return uno::Reference< rendering::XPolyPolygon2D >();
|
|
}
|
|
|
|
double SAL_CALL TextLayout::getBaselineOffset( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
// TODO
|
|
return 0.0;
|
|
}
|
|
|
|
sal_Int8 SAL_CALL TextLayout::getMainTextDirection( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
return mnTextDirection;
|
|
}
|
|
|
|
uno::Reference< rendering::XCanvasFont > SAL_CALL TextLayout::getFont( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
return mpFont.get();
|
|
}
|
|
|
|
rendering::StringContext SAL_CALL TextLayout::getText( ) throw (uno::RuntimeException, std::exception)
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
|
|
return maText;
|
|
}
|
|
|
|
/**
|
|
* TextLayout::isCairoRenderable
|
|
*
|
|
* Features currently not supported by Cairo (VCL rendering is used as fallback):
|
|
* - vertical glyphs
|
|
*
|
|
* @return true, if text/font can be rendered with cairo
|
|
**/
|
|
bool TextLayout::isCairoRenderable(SystemFontData aSysFontData) const
|
|
{
|
|
#if defined UNX && !defined MACOSX && !defined IOS
|
|
// is font usable?
|
|
if (!aSysFontData.nFontId)
|
|
return false;
|
|
#endif
|
|
|
|
// vertical glyph rendering is not supported in cairo for now
|
|
if (aSysFontData.bVerticalCharacterType)
|
|
{
|
|
OSL_TRACE(":cairocanvas::TextLayout::isCairoRenderable(): ***************** VERTICAL CHARACTER STYLE!!! ****************");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#ifdef CAIRO_HAS_WIN32_SURFACE
|
|
namespace
|
|
{
|
|
/**
|
|
* cairo::ucs4toindex: Convert ucs4 char to glyph index
|
|
* @param ucs4 an ucs4 char
|
|
* @param hfont current font
|
|
*
|
|
* @return true if successful
|
|
**/
|
|
unsigned long ucs4toindex(unsigned int ucs4, HFONT hfont)
|
|
{
|
|
wchar_t unicode[2];
|
|
WORD glyph_index;
|
|
HDC hdc = NULL;
|
|
|
|
hdc = CreateCompatibleDC (NULL);
|
|
|
|
if (!hdc) return 0;
|
|
if (!SetGraphicsMode (hdc, GM_ADVANCED))
|
|
{
|
|
DeleteDC (hdc);
|
|
return 0;
|
|
}
|
|
|
|
SelectObject (hdc, hfont);
|
|
SetMapMode (hdc, MM_TEXT);
|
|
|
|
unicode[0] = ucs4;
|
|
unicode[1] = 0;
|
|
if (GetGlyphIndicesW (hdc, unicode, 1, &glyph_index, 0) == GDI_ERROR)
|
|
{
|
|
glyph_index = 0;
|
|
}
|
|
|
|
DeleteDC (hdc);
|
|
return glyph_index;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* TextLayout::draw
|
|
*
|
|
* Cairo-based text rendering. Draw text directly on the cairo surface with cairo fonts.
|
|
* Avoid using VCL VirtualDevices for that, bypassing VCL DrawText functions, when possible
|
|
*
|
|
* Note: some text effects are not rendered due to lacking generic canvas or cairo canvas
|
|
* implementation. See issues 92657, 92658, 92659, 92660, 97529
|
|
*
|
|
* @return true, if successful
|
|
**/
|
|
bool TextLayout::draw( CairoSharedPtr& pSCairo,
|
|
OutputDevice& rOutDev,
|
|
const Point& rOutpos,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState ) const
|
|
{
|
|
::osl::MutexGuard aGuard( m_aMutex );
|
|
SystemTextLayoutData aSysLayoutData;
|
|
#if (defined CAIRO_HAS_WIN32_SURFACE) && (OSL_DEBUG_LEVEL > 1)
|
|
LOGFONTW logfont;
|
|
#endif
|
|
setupLayoutMode( rOutDev, mnTextDirection );
|
|
|
|
// TODO(P2): cache that
|
|
::boost::scoped_array< long > aOffsets(new long[maLogicalAdvancements.getLength()]);
|
|
|
|
if( maLogicalAdvancements.getLength() )
|
|
{
|
|
setupTextOffsets( aOffsets.get(), maLogicalAdvancements, viewState, renderState );
|
|
|
|
// TODO(F3): ensure correct length and termination for DX
|
|
// array (last entry _must_ contain the overall width)
|
|
}
|
|
|
|
aSysLayoutData = rOutDev.GetSysTextLayoutData(rOutpos, maText.Text,
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.Length),
|
|
maLogicalAdvancements.getLength() ? aOffsets.get() : NULL);
|
|
|
|
// Sort them so that all glyphs on the same glyph fallback level are consecutive
|
|
std::sort(aSysLayoutData.rGlyphData.begin(), aSysLayoutData.rGlyphData.end(), compareFallbacks);
|
|
bool bCairoRenderable = true;
|
|
|
|
//Pull all the fonts we need to render the text
|
|
typedef std::pair<SystemFontData,int> FontLevel;
|
|
typedef std::vector<FontLevel> FontLevelVector;
|
|
FontLevelVector aFontData;
|
|
SystemGlyphDataVector::const_iterator aGlyphIter=aSysLayoutData.rGlyphData.begin();
|
|
const SystemGlyphDataVector::const_iterator aGlyphEnd=aSysLayoutData.rGlyphData.end();
|
|
for( ; aGlyphIter != aGlyphEnd; ++aGlyphIter )
|
|
{
|
|
if( aFontData.empty() || aGlyphIter->fallbacklevel != aFontData.back().second )
|
|
{
|
|
aFontData.push_back(FontLevel(rOutDev.GetSysFontData(aGlyphIter->fallbacklevel),
|
|
aGlyphIter->fallbacklevel));
|
|
if( !isCairoRenderable(aFontData.back().first) )
|
|
{
|
|
bCairoRenderable = false;
|
|
OSL_TRACE(":cairocanvas::TextLayout::draw(S,O,p,v,r): VCL FALLBACK %s%s%s%s - %s",
|
|
maLogicalAdvancements.getLength() ? "ADV " : "",
|
|
aFontData.back().first.bAntialias ? "AA " : "",
|
|
aFontData.back().first.bFakeBold ? "FB " : "",
|
|
aFontData.back().first.bFakeItalic ? "FI " : "",
|
|
OUStringToOString( maText.Text.copy( maText.StartPosition, maText.Length ),
|
|
RTL_TEXTENCODING_UTF8 ).getStr());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// The ::GetSysTextLayoutData(), i.e. layouting of text to glyphs can change the font being used.
|
|
// The fallback checks need to be done after final font is known.
|
|
if (!bCairoRenderable) // VCL FALLBACKS
|
|
{
|
|
if (maLogicalAdvancements.getLength()) // VCL FALLBACK - with glyph advances
|
|
{
|
|
rOutDev.DrawTextArray( rOutpos, maText.Text, aOffsets.get(),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) );
|
|
return true;
|
|
}
|
|
else // VCL FALLBACK - without advances
|
|
{
|
|
rOutDev.DrawText( rOutpos, maText.Text,
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
|
|
::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) );
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if (aSysLayoutData.rGlyphData.empty())
|
|
return false; //??? false?
|
|
|
|
/**
|
|
* Setup platform independent glyph vector into cairo-based glyphs vector.
|
|
**/
|
|
|
|
// Loop through the fonts used and render the matching glyphs for each
|
|
FontLevelVector::const_iterator aFontDataIter = aFontData.begin();
|
|
const FontLevelVector::const_iterator aFontDataEnd = aFontData.end();
|
|
for( ; aFontDataIter != aFontDataEnd; ++aFontDataIter )
|
|
{
|
|
const SystemFontData &rSysFontData = aFontDataIter->first;
|
|
|
|
// setup glyphs
|
|
std::vector<cairo_glyph_t> cairo_glyphs;
|
|
cairo_glyphs.reserve( 256 );
|
|
|
|
aGlyphIter=aSysLayoutData.rGlyphData.begin();
|
|
for( ; aGlyphIter != aGlyphEnd; ++aGlyphIter )
|
|
{
|
|
SystemGlyphData systemGlyph = *aGlyphIter;
|
|
if( systemGlyph.fallbacklevel != aFontDataIter->second )
|
|
continue;
|
|
|
|
cairo_glyph_t aGlyph;
|
|
aGlyph.index = systemGlyph.index;
|
|
#ifdef CAIRO_HAS_WIN32_SURFACE
|
|
// Cairo requires standard glyph indexes (ETO_GLYPH_INDEX), while vcl/win/* uses ucs4 chars.
|
|
// Convert to standard indexes
|
|
aGlyph.index = ucs4toindex((unsigned int) aGlyph.index, rSysFontData.hFont);
|
|
#endif
|
|
aGlyph.x = systemGlyph.x;
|
|
aGlyph.y = systemGlyph.y;
|
|
cairo_glyphs.push_back(aGlyph);
|
|
}
|
|
|
|
if (cairo_glyphs.empty())
|
|
continue;
|
|
|
|
/**
|
|
* Setup font
|
|
**/
|
|
cairo_font_face_t* font_face = NULL;
|
|
|
|
#ifdef CAIRO_HAS_QUARTZ_SURFACE
|
|
# ifdef MACOSX
|
|
// TODO: use cairo_quartz_font_face_create_for_cgfont(cgFont)
|
|
// when CGFont (Mac OS X 10.5 API) is provided by the AQUA VCL backend.
|
|
font_face = cairo_quartz_font_face_create_for_atsu_font_id((ATSUFontID) rSysFontData.aATSUFontID);
|
|
# else // iOS
|
|
font_face = cairo_quartz_font_face_create_for_cgfont( CTFontCopyGraphicsFont( rSysFontData.rCTFont, NULL ) );
|
|
# endif
|
|
|
|
#elif defined CAIRO_HAS_WIN32_SURFACE
|
|
# if (OSL_DEBUG_LEVEL > 1)
|
|
GetObjectW( rSysFontData.hFont, sizeof(logfont), &logfont );
|
|
# endif
|
|
// Note: cairo library uses logfont fallbacks when lfEscapement, lfOrientation and lfWidth are not zero.
|
|
// VCL always has non-zero value for lfWidth
|
|
font_face = cairo_win32_font_face_create_for_hfont(rSysFontData.hFont);
|
|
|
|
#elif defined CAIRO_HAS_FT_FONT
|
|
font_face = cairo_ft_font_face_create_for_ft_face(static_cast<FT_Face>(rSysFontData.nFontId),
|
|
rSysFontData.nFontFlags);
|
|
#else
|
|
# error Native API needed.
|
|
#endif
|
|
|
|
cairo_set_font_face( pSCairo.get(), font_face);
|
|
|
|
// create default font options. cairo_get_font_options() does not retrieve the surface defaults,
|
|
// only what has been set before with cairo_set_font_options()
|
|
cairo_font_options_t* options = cairo_font_options_create();
|
|
if (rSysFontData.bAntialias)
|
|
{
|
|
// CAIRO_ANTIALIAS_GRAY provides more similar result to VCL Canvas,
|
|
// so we're not using CAIRO_ANTIALIAS_SUBPIXEL
|
|
cairo_font_options_set_antialias(options, CAIRO_ANTIALIAS_GRAY);
|
|
}
|
|
cairo_set_font_options( pSCairo.get(), options);
|
|
|
|
// Font color
|
|
Color mTextColor = rOutDev.GetTextColor();
|
|
cairo_set_source_rgb(pSCairo.get(),
|
|
mTextColor.GetRed()/255.0,
|
|
mTextColor.GetGreen()/255.0,
|
|
mTextColor.GetBlue()/255.0);
|
|
|
|
// Font rotation and scaling
|
|
cairo_matrix_t m;
|
|
vcl::Font aFont = rOutDev.GetFont();
|
|
|
|
cairo_matrix_init_identity(&m);
|
|
|
|
if (aSysLayoutData.orientation)
|
|
cairo_matrix_rotate(&m, (3600 - aSysLayoutData.orientation) * M_PI / 1800.0);
|
|
|
|
long nWidth = aFont.GetWidth();
|
|
long nHeight = aFont.GetHeight();
|
|
if (nWidth == 0)
|
|
nWidth = nHeight;
|
|
cairo_matrix_scale(&m, nWidth, nHeight);
|
|
|
|
//faux italics
|
|
if (rSysFontData.bFakeItalic)
|
|
m.xy = -m.xx * 0x6000L / 0x10000L;
|
|
|
|
cairo_set_font_matrix(pSCairo.get(), &m);
|
|
|
|
#if (defined CAIRO_HAS_WIN32_SURFACE) && (OSL_DEBUG_LEVEL > 1)
|
|
# define TEMP_TRACE_FONT OUString(reinterpret_cast<const sal_Unicode*> (logfont.lfFaceName))
|
|
#else
|
|
# define TEMP_TRACE_FONT aFont.GetName()
|
|
#endif
|
|
SAL_INFO(
|
|
"canvas.cairo",
|
|
"Size:(" << aFont.GetWidth() << "," << aFont.GetHeight()
|
|
<< "), Pos (" << rOutpos.X() << "," << rOutpos.Y()
|
|
<< "), G("
|
|
<< (cairo_glyphs.size() > 0 ? cairo_glyphs[0].index : -1)
|
|
<< ","
|
|
<< (cairo_glyphs.size() > 1 ? cairo_glyphs[1].index : -1)
|
|
<< ","
|
|
<< (cairo_glyphs.size() > 2 ? cairo_glyphs[2].index : -1)
|
|
<< ") " << (maLogicalAdvancements.getLength() ? "ADV " : "")
|
|
<< (rSysFontData.bAntialias ? "AA " : "")
|
|
<< (rSysFontData.bFakeBold ? "FB " : "")
|
|
<< (rSysFontData.bFakeItalic ? "FI " : "") << " || Name:"
|
|
<< TEMP_TRACE_FONT << " - "
|
|
<< maText.Text.copy(maText.StartPosition, maText.Length));
|
|
#undef TEMP_TRACE_FONT
|
|
|
|
cairo_show_glyphs(pSCairo.get(), &cairo_glyphs[0], cairo_glyphs.size());
|
|
|
|
//faux bold
|
|
if (rSysFontData.bFakeBold)
|
|
{
|
|
double bold_dx = 0.5 * sqrt( 0.7 * aFont.GetHeight() );
|
|
int total_steps = 1 * ((int) (bold_dx + 0.5));
|
|
|
|
// loop to draw the text for every half pixel of displacement
|
|
for (int nSteps = 0; nSteps < total_steps; nSteps++)
|
|
{
|
|
for(int nGlyphIdx = 0; nGlyphIdx < (int) cairo_glyphs.size(); nGlyphIdx++)
|
|
{
|
|
cairo_glyphs[nGlyphIdx].x += (bold_dx * nSteps / total_steps) / 4;
|
|
cairo_glyphs[nGlyphIdx].y -= (bold_dx * nSteps / total_steps) / 4;
|
|
}
|
|
cairo_show_glyphs(pSCairo.get(), &cairo_glyphs[0], cairo_glyphs.size());
|
|
}
|
|
OSL_TRACE(":cairocanvas::TextLayout::draw(S,O,p,v,r): FAKEBOLD - dx:%d", (int) bold_dx);
|
|
}
|
|
|
|
cairo_font_face_destroy(font_face);
|
|
cairo_font_options_destroy(options);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
class OffsetTransformer
|
|
{
|
|
public:
|
|
OffsetTransformer( const ::basegfx::B2DHomMatrix& rMat ) :
|
|
maMatrix( rMat )
|
|
{
|
|
}
|
|
|
|
sal_Int32 operator()( const double& rOffset )
|
|
{
|
|
// This is an optimization of the normal rMat*[x,0]
|
|
// transformation of the advancement vector (in x
|
|
// direction), followed by a length calculation of the
|
|
// resulting vector: advancement' =
|
|
// ||rMat*[x,0]||. Since advancements are vectors, we
|
|
// can ignore translational components, thus if [x,0],
|
|
// it follows that rMat*[x,0]=[x',0] holds. Thus, we
|
|
// just have to calc the transformation of the x
|
|
// component.
|
|
|
|
// TODO(F2): Handle non-horizontal advancements!
|
|
return ::basegfx::fround( hypot(maMatrix.get(0,0)*rOffset,
|
|
maMatrix.get(1,0)*rOffset) );
|
|
}
|
|
|
|
private:
|
|
::basegfx::B2DHomMatrix maMatrix;
|
|
};
|
|
}
|
|
|
|
void TextLayout::setupTextOffsets( long* outputOffsets,
|
|
const uno::Sequence< double >& inputOffsets,
|
|
const rendering::ViewState& viewState,
|
|
const rendering::RenderState& renderState ) const
|
|
{
|
|
ENSURE_OR_THROW( outputOffsets!=NULL,
|
|
"TextLayout::setupTextOffsets offsets NULL" );
|
|
|
|
::basegfx::B2DHomMatrix aMatrix;
|
|
|
|
::canvas::tools::mergeViewAndRenderTransform(aMatrix,
|
|
viewState,
|
|
renderState);
|
|
|
|
// fill integer offsets
|
|
::std::transform( inputOffsets.getConstArray(),
|
|
inputOffsets.getConstArray()+inputOffsets.getLength(),
|
|
outputOffsets,
|
|
OffsetTransformer( aMatrix ) );
|
|
}
|
|
|
|
OUString SAL_CALL TextLayout::getImplementationName() throw( uno::RuntimeException, std::exception )
|
|
{
|
|
return OUString( "CairoCanvas::TextLayout" );
|
|
}
|
|
|
|
sal_Bool SAL_CALL TextLayout::supportsService( const OUString& ServiceName ) throw( uno::RuntimeException, std::exception )
|
|
{
|
|
return cppu::supportsService( this, ServiceName );
|
|
}
|
|
|
|
uno::Sequence< OUString > SAL_CALL TextLayout::getSupportedServiceNames() throw( uno::RuntimeException, std::exception )
|
|
{
|
|
uno::Sequence< OUString > aRet(1);
|
|
aRet[0] = "com.sun.star.rendering.TextLayout";
|
|
|
|
return aRet;
|
|
}
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|