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/* Copyright (C) 2006 The cairomm Development Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <cairomm/scaledfont.h>
#include <cairomm/fontface.h>
#include <cairomm/private.h> // for check_status_and_throw_exception
namespace Cairo
{
ScaledFont::ScaledFont(cobject* cobj, bool has_reference)
: m_cobject(0)
{
if(has_reference)
m_cobject = cobj;
else
m_cobject = cairo_scaled_font_reference(cobj);
}
ScaledFont::ScaledFont(const RefPtr<FontFace>& font_face, const cairo_matrix_t& font_matrix,
const cairo_matrix_t& ctm, const FontOptions& options)
: m_cobject(0)
{
m_cobject =
cairo_scaled_font_create(font_face->cobj(),
&font_matrix,
&ctm,
options.cobj());
check_object_status_and_throw_exception(*this);
}
ScaledFont::~ScaledFont()
{
if (cobj())
cairo_scaled_font_destroy(cobj());
}
RefPtr<ScaledFont> ScaledFont::create(const RefPtr<FontFace>& font_face, const Matrix& font_matrix,
const Matrix& ctm, const FontOptions& options)
{
return RefPtr<ScaledFont>(new ScaledFont(font_face, font_matrix, ctm, options));
}
RefPtr<ScaledFont> ScaledFont::create(const RefPtr<FontFace>& font_face, const cairo_matrix_t& font_matrix,
const cairo_matrix_t& ctm, const FontOptions& options)
{
return RefPtr<ScaledFont>(new ScaledFont(font_face, font_matrix, ctm, options));
}
void ScaledFont::extents(FontExtents& extents) const
{
cairo_scaled_font_extents(m_cobject, static_cast<cairo_font_extents_t*>(&extents));
check_object_status_and_throw_exception(*this);
}
void ScaledFont::text_extents(const std::string& utf8, TextExtents& extents) const
{
cairo_scaled_font_text_extents(m_cobject, utf8.c_str(), static_cast<cairo_text_extents_t*>(&extents));
check_object_status_and_throw_exception(*this);
}
void ScaledFont::glyph_extents(const std::vector<Glyph>& glyphs, TextExtents& extents)
{
// copy the data from the vector to a standard C array. I don't believe
// this will be a frequently used function so I think the performance hit is
// more than offset by the increased flexibility of the STL interface.
// Use new to allocate memory as MSCV complains about non-const array size with
// Glyph glyph_array[glyphs.size()]
Glyph* glyph_array= new Glyph[glyphs.size()];
std::copy(glyphs.begin(), glyphs.end(), glyph_array);
cairo_scaled_font_glyph_extents(m_cobject, glyph_array, glyphs.size(),
static_cast<cairo_text_extents_t*>(&extents));
check_object_status_and_throw_exception(*this);
delete[] glyph_array;
}
RefPtr<FontFace> ScaledFont::get_font_face() const
{
cairo_font_face_t* face = cairo_scaled_font_get_font_face(m_cobject);
check_object_status_and_throw_exception(*this);
return RefPtr<FontFace>(new FontFace(face, false /* returned face doesn't have a reference */));
}
void ScaledFont::get_font_options(FontOptions& options) const
{
cairo_scaled_font_get_font_options(m_cobject, options.cobj());
check_object_status_and_throw_exception(*this);
}
void ScaledFont::get_font_matrix(Matrix& font_matrix) const
{
cairo_scaled_font_get_font_matrix(m_cobject,
&font_matrix);
check_object_status_and_throw_exception(*this);
}
void ScaledFont::get_font_matrix(cairo_matrix_t& font_matrix) const
{
cairo_scaled_font_get_font_matrix(m_cobject,
&font_matrix);
check_object_status_and_throw_exception(*this);
}
void ScaledFont::get_ctm(Matrix& ctm) const
{
cairo_scaled_font_get_ctm(m_cobject, &ctm);
check_object_status_and_throw_exception(*this);
}
void ScaledFont::get_ctm(cairo_matrix_t& ctm) const
{
cairo_scaled_font_get_ctm(m_cobject, &ctm);
check_object_status_and_throw_exception(*this);
}
FontType ScaledFont::get_type() const
{
cairo_font_type_t font_type = cairo_scaled_font_get_type(m_cobject);
check_object_status_and_throw_exception(*this);
return static_cast<FontType>(font_type);
}
void
ScaledFont::text_to_glyphs (double x,
double y,
const std::string& utf8,
std::vector<Glyph>& glyphs,
std::vector<TextCluster>& clusters,
TextClusterFlags& cluster_flags)
{
int num_glyphs = -1;
int num_clusters = -1;
cairo_glyph_t* c_glyphs = 0;
cairo_text_cluster_t* c_clusters = 0;
cairo_status_t status = cairo_scaled_font_text_to_glyphs(cobj(), x, y,
utf8.c_str(),
utf8.size(),
&c_glyphs,
&num_glyphs,
&c_clusters,
&num_clusters,
reinterpret_cast<cairo_text_cluster_flags_t*>(&cluster_flags));
if (num_glyphs > 0 && c_glyphs) {
glyphs.assign(static_cast<Glyph*>(c_glyphs),
static_cast<Glyph*>(c_glyphs + num_glyphs));
cairo_glyph_free(c_glyphs);
}
if (num_clusters > 0 && c_clusters) {
clusters.assign(static_cast<TextCluster*>(c_clusters),
static_cast<TextCluster*>(c_clusters + num_clusters));
cairo_text_cluster_free(c_clusters);
}
check_status_and_throw_exception(status);
check_object_status_and_throw_exception(*this);
}
void ScaledFont::get_scale_matrix(Matrix& scale_matrix) const
{
cairo_scaled_font_get_scale_matrix(const_cast<cairo_scaled_font_t*>(cobj()), &scale_matrix);
check_object_status_and_throw_exception(*this);
}
#ifdef CAIRO_HAS_FT_FONT
FtScaledFont::FtScaledFont(const RefPtr<FtFontFace>& font_face, const Matrix& font_matrix,
const Matrix& ctm, const FontOptions& options) :
ScaledFont(font_face, font_matrix, ctm, options)
{
check_object_status_and_throw_exception(*this);
}
RefPtr<FtScaledFont>
FtScaledFont::create(const RefPtr<FtFontFace>& font_face,
const Matrix& font_matrix, const Matrix& ctm,
const FontOptions& options)
{
return RefPtr<FtScaledFont>(new FtScaledFont(font_face, font_matrix, ctm, options));
}
FT_Face FtScaledFont::lock_face()
{
FT_Face face = cairo_ft_scaled_font_lock_face(cobj());
check_object_status_and_throw_exception(*this);
return face;
}
void FtScaledFont::unlock_face()
{
cairo_ft_scaled_font_unlock_face(cobj());
check_object_status_and_throw_exception(*this);
}
#endif // CAIRO_HAS_FT_FONT
} // namespace Cairo
// vim: ts=2 sw=2 et
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