123 lines
4.4 KiB
C++
123 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "coretext/common.h"
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#include "outfont.hxx"
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#include "coretext/salcoretextfontutils.hxx"
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#include "coretext/salcoretextstyle.hxx"
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CoreTextStyleInfo::CoreTextStyleInfo() :
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m_fake_bold(false),
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m_fake_italic(false),
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m_matrix(CGAffineTransformIdentity),
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m_stretch_factor(1.0),
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m_CTParagraphStyle(NULL),
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m_CTFont(NULL),
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m_color(NULL),
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m_font_face(NULL)
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{
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SAL_INFO( "vcl.coretext.style", "CoreTextStyleInfo::CoreTextStyleInfo() " << this );
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}
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CoreTextStyleInfo::~CoreTextStyleInfo()
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{
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SAL_INFO( "vcl.coretext.style", "~CoreTextStyleInfo(" << this << "), font=" << m_CTFont );
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SafeCFRelease(m_CTFont);
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SafeCFRelease(m_CTParagraphStyle);
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SafeCFRelease(m_color);
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}
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long CoreTextStyleInfo::GetFontStretchedSize() const
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{
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CGFloat size = CTFontGetSize(m_CTFont);
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return static_cast<long>(size * m_stretch_factor + 0.5);
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}
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void CoreTextStyleInfo::SetFont(FontSelectPattern* requested_font)
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{
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SAL_INFO( "vcl.coretext.style", "SetFont(" << this );
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if(!requested_font)
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{
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SafeCFRelease(m_CTFont);
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m_font_face = NULL;
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return;
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}
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m_font_face = (CoreTextPhysicalFontFace*)(requested_font->mpFontData);
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m_matrix = CGAffineTransformIdentity;
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CGFloat font_size = (CGFloat)requested_font->mfExactHeight;
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// enable bold-emulation if needed
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if( (requested_font->GetWeight() >= WEIGHT_BOLD) &&
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(m_font_face->GetWeight() < WEIGHT_SEMIBOLD) )
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{
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/* FIXME: add support for fake bold */
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m_fake_bold = true;
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}
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if( ((requested_font->GetSlant() == ITALIC_NORMAL) || (requested_font->GetSlant() == ITALIC_OBLIQUE)) &&
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!((m_font_face->GetSlant() == ITALIC_NORMAL) || (m_font_face->GetSlant() == ITALIC_OBLIQUE)) )
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{
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#define kRotationForItalicText 10
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m_fake_italic = true;
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/* about 6 degree of slant */
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m_matrix = CGAffineTransformMake( 1, 0, -tanf( kRotationForItalicText * acosf(0) / 90 ), 1, 0, 0);
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}
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// prepare font stretching
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if( (requested_font->mnWidth != 0) && (requested_font->mnWidth != requested_font->mnHeight) )
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{
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m_stretch_factor = (float)requested_font->mnWidth / requested_font->mnHeight;
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m_matrix = CGAffineTransformScale(m_matrix, m_stretch_factor, 1.0F );
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}
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SafeCFRelease(m_CTFont);
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/* FIXME: pass attribute to take into accout 'VerticalStyle' */
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/* FIXME: how to deal with 'rendering options' i.e anti-aliasing, does it even matter in CoreText ? */
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m_CTFont = CTFontCreateCopyWithAttributes(m_font_face->GetCTFont(), font_size, &m_matrix, NULL);
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SAL_INFO( "vcl.coretext.style", " font=" << m_CTFont );
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}
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void CoreTextStyleInfo::SetColor(SalColor color)
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{
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SAL_INFO( "vcl.coretext.style", "SetColor(" << this << ",color={" << (int)SALCOLOR_RED(color) << "," << (int)SALCOLOR_GREEN(color) << "," << (int)SALCOLOR_BLUE(color) << "})" );
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SafeCFRelease(m_color);
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#ifdef IOS
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// No CGColorCreateGenericRGB on iOS
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CGColorSpaceRef rgb_space = CGColorSpaceCreateDeviceRGB();
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CGFloat c[] = { SALCOLOR_RED(color) / 255.0f, SALCOLOR_GREEN(color) / 255.0f, SALCOLOR_BLUE(color) / 255.0f, 1.0 };
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m_color = CGColorCreate(rgb_space, c);
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CGColorSpaceRelease(rgb_space);
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#else
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m_color = CGColorCreateGenericRGB(SALCOLOR_RED(color) / 255.0, SALCOLOR_GREEN(color) / 255.0, SALCOLOR_BLUE(color) / 255.0, 1.0);
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#endif
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}
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void CoreTextStyleInfo::SetColor(void)
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{
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SAL_INFO( "vcl.coretext.style", "SetColor(" << this << ",none)" );
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SafeCFRelease(m_color);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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