/**
* pango_cairo_font_map_get_font_type:
* @fontmap: a #PangoCairoFontMap
*
* Gets the type of Cairo font backend that @fontmap uses.
*
* Return value: the #cairo_font_type_t cairo font backend type
*
* Since: 1.18
**/
cairo_font_type_t
pango_cairo_font_map_get_font_type (PangoCairoFontMap *fontmap)
{
g_return_val_if_fail (PANGO_IS_CAIRO_FONT_MAP (fontmap), CAIRO_FONT_TYPE_TOY);
return (* PANGO_CAIRO_FONT_MAP_GET_IFACE (fontmap)->get_font_type) (fontmap);
}
/**
* pango_cairo_font_map_create_context: (skip):
* @fontmap: a #PangoCairoFontMap
*
* Create a #PangoContext for the given fontmap.
*
* Return value: the newly created context; free with g_object_unref().
*
* Since: 1.10
*
* Deprecated: 1.22: Use pango_font_map_create_context() instead.
**/
PangoContext *
pango_cairo_font_map_create_context (PangoCairoFontMap *fontmap)
{
g_return_val_if_fail (PANGO_IS_CAIRO_FONT_MAP (fontmap), NULL);
return pango_font_map_create_context (PANGO_FONT_MAP (fontmap));
}
/**
* pango_cairo_font_map_get_resolution:
* @fontmap: a #PangoCairoFontMap
*
* Gets the resolution for the fontmap. See pango_cairo_font_map_set_resolution()
*
* Return value: the resolution in "dots per inch"
*
* Since: 1.10
**/
double
pango_cairo_font_map_get_resolution (PangoCairoFontMap *fontmap)
{
g_return_val_if_fail (PANGO_IS_CAIRO_FONT_MAP (fontmap), 96.);
return (* PANGO_CAIRO_FONT_MAP_GET_IFACE (fontmap)->get_resolution) (fontmap);
}
/**
* pango_cairo_font_map_set_resolution:
* @fontmap: a #PangoCairoFontMap
* @dpi: the resolution in "dots per inch". (Physical inches aren't actually
* involved; the terminology is conventional.)
*
* Sets the resolution for the fontmap. This is a scale factor between
* points specified in a #PangoFontDescription and Cairo units. The
* default value is 96, meaning that a 10 point font will be 13
* units high. (10 * 96. / 72. = 13.3).
*
* Since: 1.10
**/
void
pango_cairo_font_map_set_resolution (PangoCairoFontMap *fontmap,
double dpi)
{
g_return_if_fail (PANGO_IS_CAIRO_FONT_MAP (fontmap));
(* PANGO_CAIRO_FONT_MAP_GET_IFACE (fontmap)->set_resolution) (fontmap, dpi);
}
/**
* pango_cairo_font_map_set_default:
* @fontmap: The new default font map, or %NULL
*
* Sets a default #PangoCairoFontMap to use with Cairo.
*
* This can be used to change the Cairo font backend that the
* default fontmap uses for example. The old default font map
* is unreffed and the new font map referenced.
*
* A value of %NULL for @fontmap will cause the current default
* font map to be released and a new default font
* map to be created on demand, using pango_cairo_font_map_new().
*
* Since: 1.22
**/
void
pango_cairo_font_map_set_default (PangoCairoFontMap *fontmap)
{
g_return_if_fail (fontmap == NULL || PANGO_IS_CAIRO_FONT_MAP (fontmap));
if ((PangoFontMap *) fontmap == default_font_map)
return;
if (default_font_map)
g_object_unref (default_font_map);
if (fontmap)
g_object_ref (fontmap);
default_font_map = (PangoFontMap *) fontmap;
}
gboolean
text_to_path (const Text *text, GArray *points)
{
cairo_t *cr;
cairo_surface_t *surface;
PangoLayout *layout;
PangoRectangle ink_rect;
char *str;
gboolean ret = FALSE;
if (!PANGO_IS_CAIRO_FONT_MAP (pango_context_get_font_map (dia_font_get_context())))
return FALSE;
layout = pango_layout_new(dia_font_get_context());
pango_layout_set_font_description (layout, dia_font_get_description (text->font));
pango_layout_set_indent (layout, 0);
pango_layout_set_justify (layout, FALSE);
pango_layout_set_alignment (layout,
text->alignment == ALIGN_LEFT ? PANGO_ALIGN_LEFT :
text->alignment == ALIGN_RIGHT ? PANGO_ALIGN_RIGHT : PANGO_ALIGN_CENTER);
str = text_get_string_copy (text);
pango_layout_set_text (layout, str, -1);
g_free (str);
pango_layout_get_extents (layout, &ink_rect, NULL);
/* any surface should do - this one is always available */
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
ink_rect.width / PANGO_SCALE, ink_rect.height / PANGO_SCALE);
cr = cairo_create (surface);
cairo_surface_destroy (surface);
pango_cairo_layout_path (cr, layout);
/* convert the path */
if (cairo_status (cr) == CAIRO_STATUS_SUCCESS)
{
cairo_path_t *path;
int i;
path = cairo_copy_path (cr);
for (i=0; i < path->num_data; i += path->data[i].header.length) {
cairo_path_data_t *data = &path->data[i];
BezPoint bp;
switch (data->header.type) {
case CAIRO_PATH_MOVE_TO :
bp.type = BEZ_MOVE_TO;
bp.p1.x = data[1].point.x; bp.p1.y = data[1].point.y;
break;
case CAIRO_PATH_LINE_TO :
bp.type = BEZ_LINE_TO;
bp.p1.x = data[1].point.x; bp.p1.y = data[1].point.y;
break;
case CAIRO_PATH_CURVE_TO :
bp.type = BEZ_CURVE_TO;
bp.p1.x = data[1].point.x; bp.p1.y = data[1].point.y;
bp.p2.x = data[2].point.x; bp.p2.y = data[2].point.y;
bp.p3.x = data[3].point.x; bp.p3.y = data[3].point.y;
break;
case CAIRO_PATH_CLOSE_PATH :
/* can't do anything */
default :
continue;
}
g_array_append_val (points, bp);
}
ret = (path->status == CAIRO_STATUS_SUCCESS);
cairo_path_destroy (path);
}
/* finally scale it ? */
/* clean up */
g_object_unref (layout);
cairo_destroy (cr);
return ret;
}
