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/* AbiWord
* Copyright (C) 2004 Luca Padovani <lpadovan@cs.unibo.it>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
#include <stdio.h>
#include "mathview_proxy.h"
#include "gr_Abi_AreaFactory.h"
#include "gr_Abi_DefaultShaper.h"
#define NORMAL_INDEX 0
#define MAPPED_BASE_INDEX 1
GR_Abi_DefaultShaper::GR_Abi_DefaultShaper()
{ }
GR_Abi_DefaultShaper::~GR_Abi_DefaultShaper()
{ }
void
GR_Abi_DefaultShaper::registerShaper(const SmartPtr<ShaperManager>& sm, unsigned shaperId)
{
// normal characters are not registered because this shaper is supposed to
// be the default one. It will be called anyway as soon as there's a
// Unicode char that cannot be shaped otherwise
// Variant characters however are mapped so that it is possible to
// recover their "normal" Unicode number in the BMP and the appropriate
// AbiWord properties can be applied when asking for a font
for (unsigned i = NORMAL_VARIANT; i <= MONOSPACE_VARIANT; i++)
{
for (Char16 ch = 0x21; ch < 0x80; ch++)
{
Char32 vch = mapMathVariant(MathVariant(i), ch);
if (vch != ch)
sm->registerChar(vch, GlyphSpec(shaperId, MAPPED_BASE_INDEX + i - NORMAL_VARIANT, ch));
}
}
}
void
GR_Abi_DefaultShaper::unregisterShaper(const SmartPtr<class ShaperManager>&, unsigned)
{
// nothing to do
}
#define DEFAULT_SERIF_FAMILY "Times"
#define DEFAULT_SANS_SERIF_FAMILY "Helvetica"
#define DEFAULT_MONOSPACE "Courier"
const GR_Abi_DefaultShaper::AbiTextProperties&
GR_Abi_DefaultShaper::getTextProperties(MathVariant variant)
{
UT_ASSERT(variant >= NORMAL_VARIANT && variant <= MONOSPACE_VARIANT);
static const AbiTextProperties variantDesc[] =
{
{ NORMAL_VARIANT, DEFAULT_SERIF_FAMILY, "normal", "normal" },
{ BOLD_VARIANT, DEFAULT_SERIF_FAMILY, "normal", "bold" },
{ ITALIC_VARIANT, DEFAULT_SERIF_FAMILY, "italic", "normal" },
{ BOLD_ITALIC_VARIANT, DEFAULT_SERIF_FAMILY, "italic", "bold" },
{ DOUBLE_STRUCK_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "normal", "bold" },
{ BOLD_FRAKTUR_VARIANT, DEFAULT_SERIF_FAMILY, "normal", "bold" },
{ SCRIPT_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "normal", "normal" },
{ BOLD_SCRIPT_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "normal", "bold" },
{ FRAKTUR_VARIANT, DEFAULT_SERIF_FAMILY, "normal", "bold" },
{ SANS_SERIF_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "normal", "normal" },
{ BOLD_SANS_SERIF_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "normal", "bold" },
{ SANS_SERIF_ITALIC_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "italic", "normal" },
{ SANS_SERIF_BOLD_ITALIC_VARIANT, DEFAULT_SANS_SERIF_FAMILY, "italic", "bold" },
{ MONOSPACE_VARIANT, DEFAULT_MONOSPACE, "normal", "normal" }
};
return variantDesc[variant - NORMAL_VARIANT];
}
void
GR_Abi_DefaultShaper::shape(ShapingContext& context) const
{
const GlyphSpec spec = context.getSpec();
if (spec.getFontId() == NORMAL_INDEX)
context.pushArea(1, shapeChar(NORMAL_VARIANT, context, context.thisChar()));
else
context.pushArea(1, shapeChar(MathVariant(spec.getFontId() - MAPPED_BASE_INDEX + NORMAL_VARIANT),
context, spec.getGlyphId()));
}
AreaRef
GR_Abi_DefaultShaper::shapeChar(MathVariant variant, const ShapingContext& context, UT_UCS4Char ch) const
{
// the "variant" parameter overrides the variant value in the formatting context
static char fontSize[128];
sprintf(fontSize, "%dpt", static_cast<int>(context.getSize().toFloat() + 0.5f));
const AbiTextProperties& props = getTextProperties(variant);
GR_Font* font = m_pGraphics->findFont(props.family, props.style, "", props.weight, "", fontSize, "");
UT_ASSERT(font);
SmartPtr<GR_Abi_AreaFactory> factory = smart_cast<GR_Abi_AreaFactory>(context.getFactory());
return factory->charArea(m_pGraphics, font, context.getSize(), ch);
}
void
GR_Abi_DefaultShaper::setGraphics(GR_Graphics* pGr)
{
m_pGraphics = pGr;
}
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