[go: up one dir, main page]

gtk 0.0.5

Rust bindings for the GTK+ library
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148

// Copyright 2013-2015, The Gtk-rs Project Developers.
// See the COPYRIGHT file at the top-level directory of this distribution.
// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT>

#![macro_use]

macro_rules! check_pointer(
    ($tmp_pointer:ident, $gtk_struct:ident) => ( check_pointer!($tmp_pointer, $gtk_struct, G_OBJECT) );
    ($tmp_pointer:ident, $gtk_struct:ident, $cast_fn:ident) => (
        if $tmp_pointer == ::std::ptr::null_mut() {
            ::std::option::Option::None
        } else {
            unsafe {
                ::gobject_ffi::g_object_ref(
                    ::cast::$cast_fn($tmp_pointer as *mut _) as *mut _);
            }

            ::std::option::Option::Some($gtk_struct {
                pointer: $tmp_pointer as *mut _
            })
        }
    );
);

macro_rules! struct_Widget(
    ($gtk_struct:ident) => (
        pub struct $gtk_struct {
            pub pointer: *mut ffi::GtkWidget
        }
    );
);

macro_rules! impl_TraitObject(
    ($gtk_struct:ident, $ffi_type:ident) => (
        impl ::glib::traits::FFIGObject for $gtk_struct {
            fn unwrap_gobject(&self) -> *mut ::gobject_ffi::GObject {
                self.pointer as *mut ::gobject_ffi::GObject
            }

            fn wrap_object(object: *mut ::gobject_ffi::GObject) -> $gtk_struct {
                unsafe{
                    ::gobject_ffi::g_object_ref(object as *mut _);
                }

                $gtk_struct {
                    pointer: object as *mut ffi::$ffi_type
                }
            }
        }

        impl ::GObjectTrait for $gtk_struct {}
    );
);

macro_rules! impl_TraitWidget(
    ($gtk_struct:ident) => (
        impl ::FFIWidget for $gtk_struct {
            fn unwrap_widget(&self) -> *mut ffi::GtkWidget {
                self.pointer
            }

            fn wrap_widget(widget: *mut ffi::GtkWidget) -> $gtk_struct {
                unsafe{
                    ::gobject_ffi::g_object_ref(::ffi::cast_GtkObject(widget) as *mut _);
                }

                $gtk_struct {
                    pointer: widget
                }
            }
        }

        impl ::WidgetTrait for $gtk_struct {}

        impl ::glib::traits::FFIGObject for $gtk_struct {
            fn unwrap_gobject(&self) -> *mut ::gobject_ffi::GObject {
                use ::FFIWidget;
                ::cast::G_OBJECT(self.unwrap_widget())
            }

            fn wrap_object(object: *mut ::gobject_ffi::GObject) -> $gtk_struct {
                unsafe{
                    ::gobject_ffi::g_object_ref(object as *mut _);
                }

                $gtk_struct {
                    pointer: object as *mut ffi::GtkWidget
                }
            }
        }

        impl ::GObjectTrait for $gtk_struct {}
    );
);

macro_rules! impl_GObjectFunctions(
    ($gtk_struct:ident, $ffi_type:ident) => (
        impl $gtk_struct {
            pub fn unwrap_pointer(&self) -> *mut ffi::$ffi_type {
                self.pointer
            }

            pub fn wrap_pointer(pointer: *mut ffi::$ffi_type) -> $gtk_struct {
                $gtk_struct {
                    pointer: pointer
                }
            }
        }
    )
);

macro_rules! impl_drop(
    ($gtk_struct:ident) => ( impl_drop!($gtk_struct, GTK_WIDGET); );
    ($gtk_struct:ident, $cast_func:ident) => (
        impl Drop for $gtk_struct {
            fn drop(&mut self) {
                unsafe {
                    ::gobject_ffi::g_object_unref(self.pointer as *mut _);
                }
            }
        }

        impl Clone for $gtk_struct {
            fn clone(&self) -> $gtk_struct {
                let pointer = unsafe {
                    ::gobject_ffi::g_object_ref(self.pointer as *mut _)
                };

                unsafe {
                    $gtk_struct {
                        pointer: ::cast::$cast_func(::std::mem::transmute(pointer))
                    }
                }
            }
        }
    );
);

// Useful for function wich take a valid widget or NULL for a default widget
// takes an option<&trait::Widget> and return the c widget pointer or ptr::null()
macro_rules! unwrap_widget(
    ($w:ident) => (
        match $w {
            Some(ref _w) => _w.unwrap_widget(),
            None => ::std::ptr::null_mut()
        };
    );
);