summaryrefslogtreecommitdiff
path: root/src/fltk-widgets-menus.adb
blob: 3d8ea0cefd5e79a7beb2b2dfc204101adcc585df (plain)
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
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184


with

    Interfaces.C,
    System,
    FLTK.Menu_Items;

use type

    System.Address,
    Interfaces.C.int,
    Interfaces.C.unsigned_long;


package body FLTK.Widgets.Menus is


    procedure menu_set_draw_hook
           (W, D : in System.Address);
    pragma Import (C, menu_set_draw_hook, "menu_set_draw_hook");

    procedure menu_set_handle_hook
           (W, H : in System.Address);
    pragma Import (C, menu_set_handle_hook, "menu_set_handle_hook");




    function new_fl_menu
           (X, Y, W, H : in Interfaces.C.int;
            Text       : in Interfaces.C.char_array)
        return System.Address;
    pragma Import (C, new_fl_menu, "new_fl_menu");

    procedure free_fl_menu
           (F : in System.Address);
    pragma Import (C, free_fl_menu, "free_fl_menu");




    function fl_menu_add
           (M    : in System.Address;
            T    : in Interfaces.C.char_array;
            S    : in Interfaces.C.unsigned_long;
            C, U : in System.Address;
            F    : in Interfaces.C.unsigned_long)
        return Interfaces.C.int;
    pragma Import (C, fl_menu_add, "fl_menu_add");

    function fl_menu_find_item
           (M : in System.Address;
            T : in Interfaces.C.char_array)
        return System.Address;
    pragma Import (C, fl_menu_find_item, "fl_menu_find_item");

    function fl_menu_mvalue
           (M : in System.Address)
        return System.Address;
    pragma Import (C, fl_menu_mvalue, "fl_menu_mvalue");




    procedure Item_Hook
           (M, U : in System.Address)
    is
        Ada_Widget : access Widget'Class :=
            Widget_Convert.To_Pointer (fl_widget_get_user_data (M));
        Action : Widget_Callback := Callback_Convert.To_Pointer (U);
    begin
        Action.all (Ada_Widget.all);
    end Item_Hook;




    procedure Finalize
           (This : in out Menu) is
    begin
        if  This.Void_Ptr /= System.Null_Address and then
            This in Menu'Class
        then
            free_fl_menu (This.Void_Ptr);
            This.Void_Ptr := System.Null_Address;
        end if;
        Finalize (Widget (This));
    end Finalize;




    package body Forge is

        function Create
               (X, Y, W, H : in Integer;
                Text       : in String)
            return Menu is
        begin
            return This : Menu do
                This.Void_Ptr := new_fl_menu
                       (Interfaces.C.int (X),
                        Interfaces.C.int (Y),
                        Interfaces.C.int (W),
                        Interfaces.C.int (H),
                        Interfaces.C.To_C (Text));
                fl_widget_set_user_data
                       (This.Void_Ptr,
                        Widget_Convert.To_Address (This'Unchecked_Access));
                menu_set_draw_hook (This.Void_Ptr, Draw_Hook'Address);
                menu_set_handle_hook (This.Void_Ptr, Handle_Hook'Address);
            end return;
        end Create;

    end Forge;




    procedure Add
           (This     : in out Menu;
            Text     : in     String;
            Action   : in     Widget_Callback := null;
            Shortcut : in     Key_Combo := No_Key;
            Flags    : in     Menu_Flag := Flag_Normal)
    is
        Place : Interfaces.C.int;
        Callback, User_Data : System.Address;
    begin
        if Action = null then
            Callback := System.Null_Address;
            User_Data := System.Null_Address;
        else
            Callback := Item_Hook'Address;
            User_Data := Callback_Convert.To_Address (Action);
        end if;

        Place := fl_menu_add
               (This.Void_Ptr,
                Interfaces.C.To_C (Text),
                To_C (Shortcut),
                Callback,
                User_Data,
                Interfaces.C.unsigned_long (Flags));
    end Add;


    function Find_Item
           (This : in Menu'Class;
            Name : in String)
        return FLTK.Menu_Items.Menu_Item is
    begin
        return Item : FLTK.Menu_Items.Menu_Item do
            Wrapper (Item).Void_Ptr := fl_menu_find_item
                   (This.Void_Ptr,
                    Interfaces.C.To_C (Name));
        end return;
    end Find_Item;


    function Chosen
           (This : in Menu'Class)
        return FLTK.Menu_Items.Menu_Item is
    begin
        return Item : FLTK.Menu_Items.Menu_Item do
            Wrapper (Item).Void_Ptr := fl_menu_mvalue (This.Void_Ptr);
        end return;
    end Chosen;




    function Handle
           (This  : in out Menu;
            Event : in     Event_Kind)
        return Event_Outcome is
    begin
        return Not_Handled;
    end Handle;


end FLTK.Widgets.Menus;