[vala] gdk-pixbuf-2.0: Use metadata instead of custom defintions for Pixbuf

[Rico Tzschichholz <ricotz src gnome org>]

commit f52b484954d3297ae4c3230fbe969db18eb08841
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Oct 19 18:35:13 2016 +0200

    gdk-pixbuf-2.0: Use metadata instead of custom defintions for Pixbuf

 vapi/gdk-pixbuf-2.0.vapi                |   21 +++++++++++++--------
 vapi/metadata/GdkPixbuf-2.0-custom.vala |   12 ------------
 vapi/metadata/GdkPixbuf-2.0.metadata    |   20 +++++++++++++++++---
 3 files changed, 30 insertions(+), 23 deletions(-)
---
diff --git a/vapi/gdk-pixbuf-2.0.vapi b/vapi/gdk-pixbuf-2.0.vapi
index 94cb336..fe41048 100644
--- a/vapi/gdk-pixbuf-2.0.vapi
+++ b/vapi/gdk-pixbuf-2.0.vapi
@@ -23,7 +23,7 @@ namespace Gdk {
                [Version (since = "2.32")]
                public Pixbuf.from_bytes (GLib.Bytes data, Gdk.Colorspace colorspace, bool has_alpha, int 
bits_per_sample, int width, int height, int rowstride);
                [CCode (has_construct_function = false)]
-               public Pixbuf.from_data ([CCode (array_length = false)] owned uint8[] data, Gdk.Colorspace 
colorspace, bool has_alpha, int bits_per_sample, int width, int height, int rowstride, [CCode (type = 
"GdkPixbufDestroyNotify")] Gdk.PixbufDestroyNotify? destroy_fn = GLib.free);
+               public Pixbuf.from_data ([CCode (array_length = false)] owned uint8[] data, Gdk.Colorspace 
colorspace, bool has_alpha, int bits_per_sample, int width, int height, int rowstride, [CCode (scope = 
"async")] Gdk.PixbufDestroyNotify? destroy_fn = GLib.free);
                [CCode (has_construct_function = false)]
                public Pixbuf.from_file (string filename) throws GLib.Error;
                [CCode (has_construct_function = false)]
@@ -49,11 +49,12 @@ namespace Gdk {
                public Pixbuf.from_stream (GLib.InputStream stream, GLib.Cancellable? cancellable = null) 
throws GLib.Error;
                [CCode (cname = "gdk_pixbuf_new_from_stream_async", has_construct_function = false)]
                [Version (since = "2.24")]
-               public async Pixbuf.from_stream_async (GLib.InputStream stream, GLib.Cancellable? 
cancellable) throws GLib.Error;
+               public async Pixbuf.from_stream_async (GLib.InputStream stream, GLib.Cancellable? cancellable 
= null) throws GLib.Error;
                [CCode (has_construct_function = false)]
                [Version (since = "2.14")]
                public Pixbuf.from_stream_at_scale (GLib.InputStream stream, int width, int height, bool 
preserve_aspect_ratio, GLib.Cancellable? cancellable = null) throws GLib.Error;
-               [CCode (cname = "gdk_pixbuf_new_from_stream_at_scale_async", finish_name = 
"gdk_pixbuf_new_from_stream_finish")]
+               [CCode (finish_name = "gdk_pixbuf_save_to_stream_finish", has_construct_function = false, 
type = "void")]
+               [Version (since = "2.24")]
                public async Pixbuf.from_stream_at_scale_async (GLib.InputStream stream, int width, int 
height, bool preserve_aspect_ratio, GLib.Cancellable? cancellable = null) throws GLib.Error;
                [CCode (has_construct_function = false)]
                public Pixbuf.from_xpm_data ([CCode (array_length = false, array_null_terminated = true)] 
string[] data);
@@ -96,19 +97,23 @@ namespace Gdk {
                public Gdk.Pixbuf? rotate_simple (Gdk.PixbufRotation angle);
                public void saturate_and_pixelate (Gdk.Pixbuf dest, float saturation, bool pixelate);
                public bool save (string filename, string type, ...) throws GLib.Error;
-               public bool save_to_buffer ([CCode (array_length_type = "gsize", type = "gchar**")] out 
uint8[] buffer, string type, ...) throws GLib.Error;
+               [Version (since = "2.4")]
+               public bool save_to_buffer ([CCode (array_length_cname = "buffer_size", array_length_pos = 
1.5, array_length_type = "gsize")] out uint8[] buffer, string type, ...) throws GLib.Error;
                [Version (since = "2.4")]
                public bool save_to_bufferv ([CCode (array_length_cname = "buffer_size", array_length_pos = 
1.5, array_length_type = "gsize")] out uint8[] buffer, string type, [CCode (array_length = false, 
array_null_terminated = true)] string[] option_keys, [CCode (array_length = false, array_null_terminated = 
true)] string[] option_values) throws GLib.Error;
-               public bool save_to_callback (Gdk.PixbufSaveFunc save_func, string type, ...) throws 
GLib.Error;
+               [Version (since = "2.4")]
+               public bool save_to_callback ([CCode (delegate_target_pos = 1.5)] Gdk.PixbufSaveFunc 
save_func, string type, ...) throws GLib.Error;
                [Version (since = "2.4")]
                public bool save_to_callbackv ([CCode (delegate_target_pos = 1.5)] Gdk.PixbufSaveFunc 
save_func, string type, [CCode (array_length = false, array_null_terminated = true)] string[] option_keys, 
[CCode (array_length = false, array_null_terminated = true)] string[] option_values) throws GLib.Error;
+               [Version (since = "2.14")]
                public bool save_to_stream (GLib.OutputStream stream, string type, GLib.Cancellable? 
cancellable = null, ...) throws GLib.Error;
                [CCode (finish_name = "gdk_pixbuf_save_to_stream_finish")]
-               public async bool save_to_stream_async (GLib.OutputStream stream, string type, 
GLib.Cancellable? cancellable = null, ...) throws GLib.Error;
+               [Version (since = "2.24")]
+               public async void save_to_stream_async (GLib.OutputStream stream, string type, 
GLib.Cancellable? cancellable = null, ...) throws GLib.Error;
                [Version (since = "2.36")]
                public bool save_to_streamv (GLib.OutputStream stream, string type, [CCode (array_length = 
false, array_null_terminated = true)] string[] option_keys, [CCode (array_length = false, 
array_null_terminated = true)] string[] option_values, GLib.Cancellable? cancellable = null) throws 
GLib.Error;
                [Version (since = "2.36")]
-               public async void save_to_streamv_async (GLib.OutputStream stream, string type, [CCode 
(array_length = false, array_null_terminated = true)] string[] option_keys, [CCode (array_length = false, 
array_null_terminated = true)] string[] option_values, GLib.Cancellable? cancellable);
+               public async void save_to_streamv_async (GLib.OutputStream stream, string type, [CCode 
(array_length = false, array_null_terminated = true)] string[] option_keys, [CCode (array_length = false, 
array_null_terminated = true)] string[] option_values, GLib.Cancellable? cancellable = null);
                public bool savev (string filename, string type, [CCode (array_length = false, 
array_null_terminated = true)] string[] option_keys, [CCode (array_length = false, array_null_terminated = 
true)] string[] option_values) throws GLib.Error;
                public void scale (Gdk.Pixbuf dest, int dest_x, int dest_y, int dest_width, int dest_height, 
double offset_x, double offset_y, double scale_x, double scale_y, Gdk.InterpType interp_type);
                public Gdk.Pixbuf scale_simple (int dest_width, int dest_height, Gdk.InterpType interp_type);
@@ -143,7 +148,7 @@ namespace Gdk {
                public PixbufAnimation.from_stream (GLib.InputStream stream, GLib.Cancellable? cancellable = 
null) throws GLib.Error;
                [CCode (cname = "gdk_pixbuf_animation_new_from_stream_async", has_construct_function = false)]
                [Version (since = "2.28")]
-               public async PixbufAnimation.from_stream_async (GLib.InputStream stream, GLib.Cancellable? 
cancellable) throws GLib.Error;
+               public async PixbufAnimation.from_stream_async (GLib.InputStream stream, GLib.Cancellable? 
cancellable = null) throws GLib.Error;
                public int get_height ();
                public Gdk.PixbufAnimationIter get_iter (GLib.TimeVal? start_time);
                public unowned Gdk.Pixbuf get_static_image ();
diff --git a/vapi/metadata/GdkPixbuf-2.0-custom.vala b/vapi/metadata/GdkPixbuf-2.0-custom.vala
index fe5b3ef..34bb18b 100644
--- a/vapi/metadata/GdkPixbuf-2.0-custom.vala
+++ b/vapi/metadata/GdkPixbuf-2.0-custom.vala
@@ -1,7 +1,5 @@
 namespace Gdk {
        public class Pixbuf : GLib.Object {
-               [CCode (has_construct_function = false)]
-               public Pixbuf.from_data ([CCode (array_length = false)] owned uint8[] data, Gdk.Colorspace 
colorspace, bool has_alpha, int bits_per_sample, int width, int height, int rowstride, [CCode (type = 
"GdkPixbufDestroyNotify")] Gdk.PixbufDestroyNotify? destroy_fn = GLib.free);
                [CCode (has_construct_function = false, cname = "gdk_pixbuf_new_from_data")]
                public Pixbuf.with_unowned_data ([CCode (array_length = false)] uint8[] data, Gdk.Colorspace 
colorspace, bool has_alpha, int bits_per_sample, int width, int height, int rowstride, [CCode (type = 
"GdkPixbufDestroyNotify")] Gdk.PixbufDestroyNotify? destroy_fn = null);
                [Version (deprecated_since = "vala-0.18", replacement = "Pixbuf.from_stream_async")]
@@ -10,16 +8,6 @@ namespace Gdk {
                [Version (deprecated_since = "vala-0.18", replacement = "Pixbuf.from_stream_at_scale_async")]
                [CCode (cname = "gdk_pixbuf_new_from_stream_at_scale_async", finish_name = 
"gdk_pixbuf_new_from_stream_finish")]
                public static async Gdk.Pixbuf new_from_stream_at_scale_async (GLib.InputStream stream, int 
width, int height, bool preserve_aspect_ratio, GLib.Cancellable? cancellable = null) throws GLib.Error;
-               [CCode (cname = "gdk_pixbuf_new_from_stream_at_scale_async", finish_name = 
"gdk_pixbuf_new_from_stream_finish")]
-               public async Pixbuf.from_stream_at_scale_async (GLib.InputStream stream, int width, int 
height, bool preserve_aspect_ratio, GLib.Cancellable? cancellable = null) throws GLib.Error;
-               [CCode (has_construct_function = false)]
-               public Pixbuf.subpixbuf (Gdk.Pixbuf src_pixbuf, int src_x, int src_y, int width, int height);
-               public bool save (string filename, string type, ...) throws GLib.Error;
-               public bool save_to_buffer ([CCode (array_length_type = "gsize", type = "gchar**")] out 
uint8[] buffer, string type, ...) throws GLib.Error;
-               public bool save_to_callback (Gdk.PixbufSaveFunc save_func, string type, ...) throws 
GLib.Error;
-               public bool save_to_stream (GLib.OutputStream stream, string type, GLib.Cancellable? 
cancellable = null, ...) throws GLib.Error;
-               [CCode (finish_name = "gdk_pixbuf_save_to_stream_finish")]
-               public async bool save_to_stream_async (GLib.OutputStream stream, string type, 
GLib.Cancellable? cancellable = null, ...) throws GLib.Error;
        }
 
        [CCode (cheader_filename = "gdk-pixbuf/gdk-pixdata.h", instance_pos = -0.9)]
diff --git a/vapi/metadata/GdkPixbuf-2.0.metadata b/vapi/metadata/GdkPixbuf-2.0.metadata
index 361e3bf..acc4124 100644
--- a/vapi/metadata/GdkPixbuf-2.0.metadata
+++ b/vapi/metadata/GdkPixbuf-2.0.metadata
@@ -1,7 +1,21 @@
+*.*.cancellable#parameter nullable default=null
+
 Pixbuf
         .new_from_xpm_data.data type="string[]"
-        .new_from_stream_at_scale_async skip
-        .new_subpixbuf skip
+        .new_from_stream_at_scale_async symbol_type="constructor" throws="GLib.Error" 
finish_name="gdk_pixbuf_save_to_stream_finish"
+        .new_from_data.data owned
+        .new_subpixbuf symbol_type="constructor"
+        .get_file_info_async.cancellable default=()
+        .save* skip=false
+        .save throws throws="GLib.Error"
+        .save.error skip
+        .save_to_buffer throws throws="GLib.Error"
+        .save_to_buffer.error skip
+        .save_to_callback throws throws="GLib.Error"
+        .save_to_callback.error skip
+        .save_to_stream throws throws="GLib.Error"
+        .save_to_stream.error skip
+        .save_to_stream_async finish_name="gdk_pixbuf_save_to_stream_finish" throws="GLib.Error"
         .save_to_stream_finish skip
 
 // gdk-pixdata.h isn't included by gdk-pixbuf.h
@@ -11,7 +25,7 @@ Pixbuf
 
 // default values other than null
 Pixbuf
-        .new_from_data skip
+        .new_from_data.destroy_fn default=GLib.free
 
 // Bug #558620: default values
 Pixbuf