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
|
-----------------------------------------------------------------------
-- GtkAda - Ada95 binding for Gtk+/Gnome --
-- --
-- Copyright (C) 2000 E. Briot, J. Brobecker and A. Charlet --
-- Copyright (C) 2001-2003 ACT-Europe --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public --
-- License as published by the Free Software Foundation; either --
-- version 2 of the License, or (at your option) any later version. --
-- --
-- This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of --
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU --
-- General Public License for more details. --
-- --
-- You should have received a copy of the GNU General Public --
-- License along with this library; if not, write to the --
-- Free Software Foundation, Inc., 59 Temple Place - Suite 330, --
-- Boston, MA 02111-1307, USA. --
-- --
-----------------------------------------------------------------------
with Gtk.Main; use Gtk.Main;
with Gtk.Button; use Gtk.Button;
with Gtk.Enums; use Gtk.Enums;
with Gtk.Widget; use Gtk.Widget;
with Gtk.File_Selection; use Gtk.File_Selection;
with Gtkada.Handlers; use Gtkada.Handlers;
with GNAT.OS_Lib; use GNAT.OS_Lib;
with Gtk.GEntry; use Gtk.GEntry;
package body Gtkada.File_Selection is
type Gtkada_File_Selection_Record is new Gtk_File_Selection_Record with
record
File_Selected : Boolean := False;
end record;
type Gtkada_File_Selection is access all Gtkada_File_Selection_Record'Class;
function Delete_Cb (Win : access Gtk_Widget_Record'Class) return Boolean;
procedure Clicked_Ok_Cb (Button : access Gtk_Widget_Record'Class);
procedure Clicked_Cancel_Cb (Button : access Gtk_Widget_Record'Class);
---------------
-- Delete_Cb --
---------------
function Delete_Cb (Win : access Gtk_Widget_Record'Class) return Boolean is
pragma Unreferenced (Win);
begin
Main_Quit;
return True;
end Delete_Cb;
-------------------
-- Clicked_Ok_Cb --
-------------------
procedure Clicked_Ok_Cb (Button : access Gtk_Widget_Record'Class) is
begin
Gtkada_File_Selection (Get_Toplevel (Button)).File_Selected := True;
Main_Quit;
end Clicked_Ok_Cb;
-----------------------
-- Clicked_Cancel_Cb --
-----------------------
procedure Clicked_Cancel_Cb (Button : access Gtk_Widget_Record'Class) is
pragma Unreferenced (Button);
begin
Main_Quit;
end Clicked_Cancel_Cb;
--------------------
-- Message_Dialog --
--------------------
function File_Selection_Dialog
(Title : Glib.UTF8_String := "Select File";
Default_Dir : String := "";
Dir_Only : Boolean := False;
Must_Exist : Boolean := False) return String
is
Dialog : Gtkada_File_Selection;
Button : Gtk_Button;
begin
Dialog := new Gtkada_File_Selection_Record;
Initialize (Dialog, Title);
if Default_Dir /= "" then
Set_Filename (Dialog, Default_Dir);
end if;
Set_Modal (Dialog);
Set_Show_File_Op_Buttons (Dialog, False);
Set_Position (Dialog, Win_Pos_Mouse);
Return_Callback.Connect
(Dialog, "delete_event",
Return_Callback.To_Marshaller (Delete_Cb'Access));
Button := Get_Ok_Button (Dialog);
Widget_Callback.Connect
(Button, "clicked",
Widget_Callback.To_Marshaller (Clicked_Ok_Cb'Access));
Button := Get_Cancel_Button (Dialog);
Widget_Callback.Connect
(Button, "clicked",
Widget_Callback.To_Marshaller (Clicked_Cancel_Cb'Access));
Show_All (Dialog);
if Dir_Only then
Hide_All (Get_Parent (Get_File_List (Dialog)));
end if;
Main;
loop
if Dialog.File_Selected then
declare
S : constant String := Get_Filename (Dialog);
Last : Natural := S'Last;
begin
while Last > S'First
and then S (Last) = Directory_Separator
loop
Last := Last - 1;
end loop;
if S = ""
or else not Must_Exist
or else
(Dir_Only and then Is_Directory (S (S'First .. Last)))
or else Is_Regular_File (S (S'First .. Last))
then
Destroy (Dialog);
return S;
elsif Is_Directory (S (S'First .. Last)) then
-- The user might have entered a name in the text field
-- and pressed enter, so we simply change the current
-- directory, and try again
Set_Filename (Dialog, S & Directory_Separator);
Set_Text (Gtk_Entry (Get_Selection_Entry (Dialog)), "");
Dialog.File_Selected := False;
Main;
else
Destroy (Dialog);
return "";
end if;
end;
else
Destroy (Dialog);
return "";
end if;
end loop;
end File_Selection_Dialog;
end Gtkada.File_Selection;
|
