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api: add cairo_surface_supports_mime_type

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to allow querying if a surface supports a particular mime type.
This commit is contained in:
Adrian Johnson 2012-01-18 22:13:10 +10:30
parent a7c9c75ffa
commit 0f40cdea1b
9 changed files with 112 additions and 1 deletions
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14
src/cairo-paginated-surface.c
View file

@ -640,6 +640,17 @@ _cairo_paginated_surface_show_text_glyphs (void *abstract_surface,
clip);
}
static const char **
_cairo_paginated_surface_get_supported_mime_types (void *abstract_surface)
{
cairo_paginated_surface_t *surface = abstract_surface;
if (surface->target->backend->get_supported_mime_types)
return surface->target->backend->get_supported_mime_types (surface->target);
return NULL;
}
static cairo_surface_t *
_cairo_paginated_surface_snapshot (void *abstract_other)
{
@ -691,5 +702,6 @@ static const cairo_surface_backend_t cairo_paginated_surface_backend = {
NULL, /* fill_stroke */
NULL, /* show_glyphs */
_cairo_paginated_surface_has_show_text_glyphs,
_cairo_paginated_surface_show_text_glyphs
_cairo_paginated_surface_show_text_glyphs,
_cairo_paginated_surface_get_supported_mime_types,
};

14
src/cairo-pdf-surface.c
View file

@ -157,6 +157,14 @@ static const char * _cairo_pdf_version_strings[CAIRO_PDF_VERSION_LAST] =
"PDF 1.5"
};
static const char *_cairo_pdf_supported_mime_types[] =
{
CAIRO_MIME_TYPE_JPEG,
CAIRO_MIME_TYPE_JP2,
CAIRO_MIME_TYPE_UNIQUE_ID,
NULL
};
typedef struct _cairo_pdf_object {
long offset;
} cairo_pdf_object_t;
@ -7240,6 +7248,11 @@ cleanup:
return status;
}
static const char **
_cairo_pdf_surface_get_supported_mime_types (void *abstract_surface)
{
return _cairo_pdf_supported_mime_types;
}
static void
_cairo_pdf_surface_set_paginated_mode (void *abstract_surface,
@ -7283,6 +7296,7 @@ static const cairo_surface_backend_t cairo_pdf_surface_backend = {
NULL, /* show_glyphs */
_cairo_pdf_surface_has_show_text_glyphs,
_cairo_pdf_surface_show_text_glyphs,
_cairo_pdf_surface_get_supported_mime_types,
};
static const cairo_paginated_surface_backend_t

13
src/cairo-ps-surface.c
View file

@ -144,6 +144,12 @@ static const char * _cairo_ps_level_strings[CAIRO_PS_LEVEL_LAST] =
"PS Level 3"
};
static const char *_cairo_ps_supported_mime_types[] =
{
CAIRO_MIME_TYPE_JPEG,
NULL
};
typedef struct _cairo_page_standard_media {
const char *name;
int width;
@ -4155,6 +4161,12 @@ cleanup_composite:
return status;
}
static const char **
_cairo_ps_surface_get_supported_mime_types (void *abstract_surface)
{
return _cairo_ps_supported_mime_types;
}
static void
_cairo_ps_surface_set_paginated_mode (void *abstract_surface,
cairo_paginated_mode_t paginated_mode)
@ -4304,6 +4316,7 @@ static const cairo_surface_backend_t cairo_ps_surface_backend = {
NULL, /* show_glyphs */
_cairo_ps_surface_has_show_text_glyphs,
_cairo_ps_surface_show_text_glyphs,
_cairo_ps_surface_get_supported_mime_types,
};
static const cairo_paginated_surface_backend_t cairo_ps_surface_paginated_backend = {

3
src/cairo-surface-backend-private.h
View file

@ -192,6 +192,9 @@ struct _cairo_surface_backend {
cairo_text_cluster_flags_t cluster_flags,
cairo_scaled_font_t *scaled_font,
const cairo_clip_t *clip);
const char **
(*get_supported_mime_types) (void *surface);
};
CAIRO_END_DECLS

30
src/cairo-surface.c
View file

@ -1193,6 +1193,36 @@ cairo_surface_set_mime_data (cairo_surface_t *surface,
}
slim_hidden_def (cairo_surface_set_mime_data);
/**
* cairo_surface_supports_mime_type:
* @surface: a #cairo_surface_t
* @mime_type: the mime type
*
* Return whether @surface supports @mime_type.
*
* Since: 1.12
**/
cairo_bool_t
cairo_surface_supports_mime_type (cairo_surface_t *surface,
const char *mime_type)
{
const char **types;
if (surface->backend->get_supported_mime_types) {
types = surface->backend->get_supported_mime_types (surface);
if (types) {
while (*types) {
if (strcmp (*types, mime_type) == 0)
return TRUE;
types++;
}
}
}
return FALSE;
}
slim_hidden_def (cairo_surface_supports_mime_type);
static void
_cairo_mime_data_reference (const void *key, void *elt, void *closure)
{

18
src/cairo-svg-surface.c
View file

@ -87,6 +87,14 @@ static const cairo_svg_version_t _cairo_svg_versions[] =
#define CAIRO_SVG_VERSION_LAST ARRAY_LENGTH (_cairo_svg_versions)
static const char *_cairo_svg_supported_mime_types[] =
{
CAIRO_MIME_TYPE_JPEG,
CAIRO_MIME_TYPE_PNG,
CAIRO_MIME_TYPE_URI,
NULL
};
static void
_cairo_svg_surface_emit_path (cairo_output_stream_t *output,
const cairo_path_fixed_t *path,
@ -2577,6 +2585,13 @@ _cairo_svg_surface_get_font_options (void *abstract_surface,
_cairo_font_options_set_round_glyph_positions (options, CAIRO_ROUND_GLYPH_POS_OFF);
}
static const char **
_cairo_svg_surface_get_supported_mime_types (void *abstract_surface)
{
return _cairo_svg_supported_mime_types;
}
static const cairo_surface_backend_t cairo_svg_surface_backend = {
CAIRO_SURFACE_TYPE_SVG,
_cairo_svg_surface_finish,
@ -2607,6 +2622,9 @@ static const cairo_surface_backend_t cairo_svg_surface_backend = {
_cairo_svg_surface_fill,
_cairo_svg_surface_fill_stroke,
_cairo_svg_surface_show_glyphs,
NULL, /* has_show_text_glyphs */
NULL, /* show_text_glyphs */
_cairo_svg_surface_get_supported_mime_types,
};
static cairo_status_t

16
src/cairo-win32-printing-surface.c
View file

@ -91,6 +91,13 @@
#define PELS_72DPI ((LONG)(72. / 0.0254))
static const char *_cairo_win32_printing_supported_mime_types[] =
{
CAIRO_MIME_TYPE_JPEG,
CAIRO_MIME_TYPE_PNG,
NULL
};
static const cairo_surface_backend_t cairo_win32_printing_surface_backend;
static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend;
@ -1655,6 +1662,12 @@ _cairo_win32_printing_surface_show_glyphs (void *abstract_surfac
return status;
}
static const char **
_cairo_win32_printing_surface_get_supported_mime_types (void *abstract_surface)
{
return _cairo_win32_printing_supported_mime_types;
}
static cairo_surface_t *
_cairo_win32_printing_surface_create_similar (void *abstract_surface,
cairo_content_t content,
@ -1887,6 +1900,9 @@ static const cairo_surface_backend_t cairo_win32_printing_surface_backend = {
_cairo_win32_printing_surface_fill,
NULL, /* fill/stroke */
_cairo_win32_printing_surface_show_glyphs,
NULL, /* has_show_text_glyphs */
NULL, /* show_text_glyphs */
_cairo_win32_printing_surface_get_supported_mime_types,
};
static const cairo_paginated_surface_backend_t cairo_win32_surface_paginated_backend = {

4
src/cairo.h
View file

@ -2370,6 +2370,10 @@ cairo_surface_set_mime_data (cairo_surface_t *surface,
cairo_destroy_func_t destroy,
void *closure);
cairo_public cairo_bool_t
cairo_surface_supports_mime_type (cairo_surface_t *surface,
const char *mime_type);
cairo_public void
cairo_surface_get_font_options (cairo_surface_t *surface,
cairo_font_options_t *options);

1
src/cairoint.h
View file

@ -1898,6 +1898,7 @@ slim_hidden_proto (cairo_surface_set_fallback_resolution);
slim_hidden_proto (cairo_surface_set_mime_data);
slim_hidden_proto (cairo_surface_show_page);
slim_hidden_proto (cairo_surface_status);
slim_hidden_proto (cairo_surface_supports_mime_type);
slim_hidden_proto (cairo_surface_unmap_image);
slim_hidden_proto (cairo_text_cluster_allocate);
slim_hidden_proto (cairo_text_cluster_free);