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/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2008 OpenedHand
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/**
* SECTION:cogl-pango
* @short_description: COGL-based text rendering using Pango
*
* FIXME
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
/* This is needed to get the Pango headers to export stuff needed to
subclass */
#ifndef PANGO_ENABLE_BACKEND
#define PANGO_ENABLE_BACKEND 1
#endif
#include <pango/pango-fontmap.h>
#include <pango/pangocairo.h>
#include <pango/pango-renderer.h>
#include "cogl-pango.h"
#include "cogl-pango-private.h"
#include "cogl-util.h"
#include "cogl/cogl-context-private.h"
static GQuark cogl_pango_font_map_get_priv_key (void) G_GNUC_CONST;
typedef struct _CoglPangoFontMapPriv
{
CoglContext *ctx;
PangoRenderer *renderer;
} CoglPangoFontMapPriv;
static void
free_priv (gpointer data)
{
CoglPangoFontMapPriv *priv = data;
cogl_object_unref (priv->ctx);
cogl_object_unref (priv->renderer);
g_free (priv);
}
PangoFontMap *
cogl_pango_font_map_new (void)
{
PangoFontMap *fm = pango_cairo_font_map_new ();
CoglPangoFontMapPriv *priv = g_new0 (CoglPangoFontMapPriv, 1);
_COGL_GET_CONTEXT (context, NULL);
priv->ctx = cogl_object_ref (context);
/* XXX: The public pango api doesn't let us sub-class
* PangoCairoFontMap so we attach our own private data using qdata
* for now. */
g_object_set_qdata_full (G_OBJECT (fm),
cogl_pango_font_map_get_priv_key (),
priv,
free_priv);
return fm;
}
PangoContext *
cogl_pango_font_map_create_context (CoglPangoFontMap *fm)
{
_COGL_RETURN_VAL_IF_FAIL (COGL_PANGO_IS_FONT_MAP (fm), NULL);
#if PANGO_VERSION_CHECK (1, 22, 0)
/* We can just directly use the pango context from the Cairo font
map */
return pango_font_map_create_context (PANGO_FONT_MAP (fm));
#else
return pango_cairo_font_map_create_context (PANGO_CAIRO_FONT_MAP (fm));
#endif
}
static CoglPangoFontMapPriv *
_cogl_pango_font_map_get_priv (CoglPangoFontMap *fm)
{
return g_object_get_qdata (G_OBJECT (fm),
cogl_pango_font_map_get_priv_key ());
}
PangoRenderer *
_cogl_pango_font_map_get_renderer (CoglPangoFontMap *fm)
{
CoglPangoFontMapPriv *priv = _cogl_pango_font_map_get_priv (fm);
if (G_UNLIKELY (!priv->renderer))
priv->renderer = _cogl_pango_renderer_new (priv->ctx);
return priv->renderer;
}
PangoRenderer *
cogl_pango_font_map_get_renderer (CoglPangoFontMap *fm)
{
return _cogl_pango_font_map_get_renderer (fm);
}
CoglContext *
_cogl_pango_font_map_get_cogl_context (CoglPangoFontMap *fm)
{
CoglPangoFontMapPriv *priv = _cogl_pango_font_map_get_priv (fm);
return priv->ctx;
}
void
cogl_pango_font_map_set_resolution (CoglPangoFontMap *font_map,
double dpi)
{
_COGL_RETURN_IF_FAIL (COGL_PANGO_IS_FONT_MAP (font_map));
pango_cairo_font_map_set_resolution (PANGO_CAIRO_FONT_MAP (font_map), dpi);
}
void
cogl_pango_font_map_clear_glyph_cache (CoglPangoFontMap *fm)
{
PangoRenderer *renderer = _cogl_pango_font_map_get_renderer (fm);
_cogl_pango_renderer_clear_glyph_cache (COGL_PANGO_RENDERER (renderer));
}
void
cogl_pango_font_map_set_use_mipmapping (CoglPangoFontMap *fm,
CoglBool value)
{
PangoRenderer *renderer = _cogl_pango_font_map_get_renderer (fm);
_cogl_pango_renderer_set_use_mipmapping (COGL_PANGO_RENDERER (renderer),
value);
}
CoglBool
cogl_pango_font_map_get_use_mipmapping (CoglPangoFontMap *fm)
{
PangoRenderer *renderer = _cogl_pango_font_map_get_renderer (fm);
return
_cogl_pango_renderer_get_use_mipmapping (COGL_PANGO_RENDERER (renderer));
}
static GQuark
cogl_pango_font_map_get_priv_key (void)
{
static GQuark priv_key = 0;
if (G_UNLIKELY (priv_key == 0))
priv_key = g_quark_from_static_string ("CoglPangoFontMap");
return priv_key;
}
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