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136 | -----------------------------------------------------------------------
-- GtkAda Contributions --
-- --
-- Copyright (C) 2011 O. Kellogg <okellogg@users.sourceforge.net> --
-- --
-- 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. --
-- --
-- As a special exception, if other files instantiate generics from --
-- this unit, or you link this unit with other files to produce an --
-- executable, this unit does not by itself cause the resulting --
-- executable to be covered by the GNU General Public License. This --
-- exception does not however invalidate any other reasons why the --
-- executable file might be covered by the GNU Public License. --
-----------------------------------------------------------------------
with Ada.Characters.Handling;
with Ada.Strings.Maps.Constants;
with Ada.Strings.Fixed;
with GLib;
with GLib.Object.Checked_Destroy;
package body Gtk.Generic_Enum_Combo_Box is
To_Space_Mapping : constant Ada.Strings.Maps.Character_Mapping :=
Ada.Strings.Maps.To_Mapping ("_", " ");
function Apply_Style
( To : String;
Style : Gtk.Missed.Enum_Style_Type;
Replace_Underscore_By_Space : Boolean
) return String is
Output : String (To'Range);
begin
case Style is
when Gtk.Missed.Mixed_Case =>
declare
package CH renames Ada.Characters.Handling;
C : Character;
begin
for I in To'Range loop
if I = To'First or else To (I - 1) = '_' then
C := CH.To_Upper (To (I));
else
C := CH.To_Lower (To (I));
end if;
Output (I) := C;
end loop;
end;
when Gtk.Missed.ALL_CAPS =>
null;
when Gtk.Missed.all_small =>
declare
Lc : constant Ada.Strings.Maps.Character_Mapping :=
Ada.Strings.Maps.Constants.Lower_Case_Map;
begin
Output := Ada.Strings.Fixed.Translate (To, Lc);
end;
when Gtk.Missed.Capitalize_First =>
Output := Ada.Characters.Handling.To_Lower (To);
Output (1) := Ada.Characters.Handling.To_Upper (Output (1));
end case;
if Replace_Underscore_By_Space then
Output :=
Ada.Strings.Fixed.Translate (Output, To_Space_Mapping);
end if;
return Output;
end Apply_Style;
procedure Initialize
( Combo : not null access Gtk_Enum_Combo_Box_Record'Class;
Style : in Gtk.Missed.Enum_Style_Type :=
Gtk.Missed.Mixed_Case;
Replace_Underscore_By_Space : in Boolean := False
) is
begin
Gtk.Combo_Box_Text.Initialize (Combo);
for I in Enum_Type loop
Combo.Append_Text
( Apply_Style
( Enum_Type'Image (I),
Style,
Replace_Underscore_By_Space
) );
end loop;
end Initialize;
procedure Gtk_New
( Combo : out Gtk_Enum_Combo_Box;
Style : in Gtk.Missed.Enum_Style_Type :=
Gtk.Missed.Mixed_Case;
Replace_Underscore_By_Space : in Boolean := False
) is
begin
Combo := new Gtk_Enum_Combo_Box_Record;
Initialize (Combo, Style, Replace_Underscore_By_Space);
exception
when others =>
GLib.Object.Checked_Destroy (Combo);
Combo := null;
raise;
end Gtk_New;
procedure Set_Active_Value
( Combo : not null access Gtk_Enum_Combo_Box_Record;
Value : in Enum_Type
) is
begin
Combo.Set_Active (Enum_Type'Pos (Value));
end Set_Active_Value;
function Get_Active_Value
( Combo : not null access Gtk_Enum_Combo_Box_Record
) return Enum_Type is
Active_Index : constant Glib.Gint := Combo.Get_Active;
use type Glib.Gint;
begin
if Active_Index < 0 then
raise Gtk.Missed.No_Selection with "Nothing selected yet";
end if;
return Enum_Type'Val (Active_Index);
end Get_Active_Value;
end Gtk.Generic_Enum_Combo_Box;
|