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
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
with
FLTK.Images;
limited with
FLTK.Widgets.Groups;
private with
System.Address_To_Access_Conversions,
Ada.Unchecked_Conversion,
Interfaces.C;
package FLTK.Widgets is
type Widget is new Wrapper with private;
type Widget_Callback is access procedure
(Item : in out Widget'Class);
type Font_Size is new Natural;
Normal_Size : constant Font_Size := 14;
type Event_Outcome is (Not_Handled, Handled);
function Create
(X, Y, W, H : in Integer;
Text : in String)
return Widget;
procedure Activate
(This : in out Widget);
procedure Deactivate
(This : in out Widget);
function Is_Active
(This : in Widget)
return Boolean;
function Is_Tree_Active
(This : in Widget)
return Boolean;
procedure Clear_Active
(This : in out Widget);
function Has_Changed
(This : in Widget)
return Boolean;
procedure Clear_Changed
(This : in out Widget);
function Parent
(This : in Widget)
return access FLTK.Widgets.Groups.Group'Class;
function Contains
(This : in Widget;
Item : in Widget'Class)
return Boolean;
function Get_Alignment
(This : in Widget)
return Alignment;
procedure Set_Alignment
(This : in out Widget;
New_Align : in Alignment);
function Get_Box
(This : in Widget)
return Box_Kind;
procedure Set_Box
(This : in out Widget;
Box : in Box_Kind);
function Get_Label
(This : in out Widget)
return String;
procedure Set_Label
(This : in out Widget;
Text : in String);
function Get_Label_Font
(This : in Widget)
return Font_Kind;
procedure Set_Label_Font
(This : in out Widget;
Font : in Font_Kind);
function Get_Label_Size
(This : in Widget)
return Font_Size;
procedure Set_Label_Size
(This : in out Widget;
Size : in Font_Size);
function Get_Label_Type
(This : in Widget)
return Label_Kind;
procedure Set_Label_Type
(This : in out Widget;
Label : in Label_Kind);
function Get_Callback
(This : in Widget)
return Widget_Callback;
procedure Set_Callback
(This : in out Widget;
Func : in Widget_Callback);
function Get_X
(This : in Widget)
return Integer;
function Get_Y
(This : in Widget)
return Integer;
function Get_W
(This : in Widget)
return Integer;
function Get_H
(This : in Widget)
return Integer;
procedure Resize
(This : in out Widget;
W, H : in Integer);
procedure Reposition
(This : in out Widget;
X, Y : in Integer);
function Get_Image
(This : in Widget)
return access FLTK.Images.Image'Class;
procedure Set_Image
(This : in out Widget;
Pic : in out FLTK.Images.Image'Class);
procedure Draw
(This : in out Widget) is null;
procedure Redraw
(This : in out Widget);
procedure Redraw_Label
(This : in out Widget);
function Handle
(This : in out Widget;
Event : in Event_Kind)
return Event_Outcome;
private
type Widget is new Wrapper with
record
Callback : Widget_Callback;
Current_Image : access FLTK.Images.Image'Class;
end record;
overriding procedure Finalize
(This : in out Widget);
-- the user data portion should always be a reference back to the Ada binding
procedure Callback_Hook
(W, U : in System.Address);
pragma Convention (C, Callback_Hook);
procedure Draw_Hook
(U : in System.Address);
pragma Convention (C, Draw_Hook);
function Handle_Hook
(U : in System.Address;
E : in Interfaces.C.int)
return Interfaces.C.int;
pragma Convention (C, Handle_Hook);
package Widget_Convert is new System.Address_To_Access_Conversions (Widget'Class);
package Callback_Convert is
function To_Pointer is new Ada.Unchecked_Conversion (System.Address, Widget_Callback);
function To_Address is new Ada.Unchecked_Conversion (Widget_Callback, System.Address);
end Callback_Convert;
function fl_widget_get_user_data
(W : in System.Address)
return System.Address;
pragma Import (C, fl_widget_get_user_data, "fl_widget_get_user_data");
procedure fl_widget_set_user_data
(W, D : in System.Address);
pragma Import (C, fl_widget_set_user_data, "fl_widget_set_user_data");
end FLTK.Widgets;
|
