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/* -*- 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 "ios/common.h"
#include "outfont.hxx"
#include "ios/salcoretextfontutils.hxx"
#include "ios/salcoretextstyle.hxx"
CoreTextStyleInfo::CoreTextStyleInfo() :
m_fake_bold(false),
m_fake_italic(false),
m_matrix(CGAffineTransformIdentity),
m_stretch_factor(1.0),
m_CTParagraphStyle(NULL),
m_CTFont(NULL),
m_color(NULL),
m_font_data(NULL)
{
msgs_debug(style,"create <-->");
}
CoreTextStyleInfo::~CoreTextStyleInfo()
{
msgs_debug(style,"destroy (font:%p) <-->", m_CTFont);
SafeCFRelease(m_CTFont);
SafeCFRelease(m_CTParagraphStyle);
SafeCFRelease(m_color);
}
long CoreTextStyleInfo::GetFontStretchedSize() const
{
CGFloat size = CTFontGetSize(m_CTFont);
return static_cast<long>(size * m_stretch_factor + 0.5);
}
void CoreTextStyleInfo::SetFont(FontSelectPattern* requested_font)
{
msgs_debug(style,"req(%p) release font %p -->", requested_font, m_CTFont);
SafeCFRelease(m_CTFont);
if (!requested_font)
{
m_font_data = NULL;
return;
}
const ImplCoreTextFontData* font_data = static_cast<const ImplCoreTextFontData*>(requested_font->mpFontData);
m_font_data = (ImplCoreTextFontData*)font_data;
m_matrix = CGAffineTransformIdentity;
CGFloat font_size = (CGFloat)requested_font->mfExactHeight;
// enable bold-emulation if needed
if ( (requested_font->GetWeight() >= WEIGHT_BOLD) &&
(font_data->GetWeight() < WEIGHT_SEMIBOLD) )
{
/* FIXME: add support for fake bold */
m_fake_bold = true;
}
if ( ((requested_font->GetSlant() == ITALIC_NORMAL) || (requested_font->GetSlant() == ITALIC_OBLIQUE)) &&
!((font_data->GetSlant() == ITALIC_NORMAL) || (font_data->GetSlant() == ITALIC_OBLIQUE)) )
{
#define kRotationForItalicText 10
m_fake_italic = true;
/* about 6 degree of slant */
m_matrix = CGAffineTransformMake( 1, 0, -tanf( kRotationForItalicText * acosf(0) / 90 ), 1, 0, 0);
}
// prepare font stretching
if ( (requested_font->mnWidth != 0) && (requested_font->mnWidth != requested_font->mnHeight) )
{
m_stretch_factor = (float)requested_font->mnWidth / requested_font->mnHeight;
m_matrix = CGAffineTransformScale(m_matrix, m_stretch_factor, 1.0F );
}
/* FIXME: pass attribute to take into accout 'VerticalStyle' */
/* FIXME: how to deal with 'rendering options' i.e anti-aliasing, does it even matter in CoreText ? */
m_CTFont = CTFontCreateCopyWithAttributes(font_data->GetCTFont(), font_size, &m_matrix, NULL);
msgs_debug(style,"font %p <--", m_CTFont);
}
void CoreTextStyleInfo::SetColor(SalColor color)
{
msgs_debug(style, "r:%d g:%d b:%d -->", SALCOLOR_RED(color), SALCOLOR_GREEN(color), SALCOLOR_BLUE(color));
SafeCFRelease(m_color);
CGColorSpaceRef rgb_space = CGColorSpaceCreateDeviceRGB();
CGFloat c[] = { SALCOLOR_RED(color) / 255.0, SALCOLOR_GREEN(color) / 255.0, SALCOLOR_BLUE(color) / 255.0, 1.0 };
m_color = CGColorCreate(rgb_space, c);
CGColorSpaceRelease(rgb_space);
msgs_debug(style,"color=%p <--", m_color);
}
void CoreTextStyleInfo::SetColor(void)
{
msgs_debug(style, "null -->");
SafeCFRelease(m_color);
msgs_debug(style,"color=%p <--", m_color);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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