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|
-----------------------------------------------------------------------
-- GtkAda - Ada95 binding for the Gimp Toolkit --
-- --
-- Copyright (C) 1998-1999 --
-- Emmanuel Briot, Joel Brobecker and Arnaud Charlet --
-- --
-- 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 Glib; use Glib;
with Gtk; use Gtk;
with Gtk.Box; use Gtk.Box;
with Gtk.Button; use Gtk.Button;
with Gtk.Enums; use Gtk.Enums;
with Gtk.Label; use Gtk.Label;
with Gtk.List; use Gtk.List;
with Gtk.List_Item; use Gtk.List_Item;
with Gtk.Option_Menu; use Gtk.Option_Menu;
with Gtk.Radio_Menu_Item; use Gtk.Radio_Menu_Item;
with Gtk.Scrolled_Window; use Gtk.Scrolled_Window;
with Gtk.Handlers; use Gtk.Handlers;
with Gtk.Widget; use Gtk.Widget;
with Gtkada.Types; use Gtkada.Types;
with Ada.Text_IO; use Ada.Text_IO;
with Common; use Common;
package body Create_List is
package List_Cb is new Handlers.Callback (Gtk_List_Record);
Num_Item : Natural := 0;
Items : constant Chars_Ptr_Array :=
"Single" + "Browse" + "Multiple" + "Extended";
List : Gtk_List;
Omenu_Group : Widget_SList.GSlist;
----------
-- Help --
----------
function Help return String is
begin
return "Note that the @bGtk_List@B list widget is not the best way to"
& " display text, as opposed to what you can see in this demo."
& ASCII.LF
& "Instead this widget is intended to provide a list of lines"
& " that can be selected either as a group or independently.";
end Help;
---------------------
-- Toggle_Sel_Mode --
---------------------
procedure Toggle_Sel_Mode (Widget : access Gtk_Widget_Record'Class) is
begin
if not Mapped_Is_Set (Widget) then
return;
end if;
Set_Selection_Mode
(List,
Gtk_Selection_Mode'Val (3 - Selected_Button (Omenu_Group)));
end Toggle_Sel_Mode;
--------------
-- List_Add --
--------------
procedure List_Add (List : access Gtk_List_Record'Class) is
Item : Gtk_List_Item;
begin
Gtk_New (Item, Label => "added item" & Natural'Image (Num_Item));
Num_Item := Num_Item + 1;
Show (Item);
Add (List, Item);
end List_Add;
-----------------
-- List_Remove --
-----------------
procedure List_Remove (List : access Gtk_List_Record'Class) is
use Widget_List;
Tmp_List,
Clear_List : Widget_List.Glist;
begin
Tmp_List := Get_Selection (List);
while Tmp_List /= Widget_List.Null_List loop
Prepend (Clear_List, Get_Data (Tmp_List));
Tmp_List := Next (Tmp_List);
end loop;
List_Reverse (Clear_List);
Remove_Items (List, Clear_List);
Free (Clear_List);
end List_Remove;
----------------
-- List_Clear --
----------------
procedure List_Clear (List : access Gtk_List_Record'Class) is
begin
Clear_Items (List, 0, -1);
end List_Clear;
---------
-- Run --
---------
procedure Run (Frame : access Gtk.Frame.Gtk_Frame_Record'Class) is
Vbox,
Hbox,
Cbox : Gtk_Box;
Scrolled_Win : Gtk_Scrolled_Window;
Label : Gtk_Label;
Infile : Ada.Text_IO.File_Type;
List_Omenu : Gtk_Option_Menu;
Button : Gtk_Button;
begin
Set_Label (Frame, "List");
Gtk_New_Vbox (Vbox, Homogeneous => False, Spacing => 0);
Add (Frame, Vbox);
Gtk_New (Scrolled_Win);
Set_Border_Width (Scrolled_Win, Border_Width => 5);
Set_USize (Scrolled_Win, Width => -1, Height => 300);
Pack_Start (Vbox, Scrolled_Win,
Expand => True,
Fill => True,
Padding => 0);
Set_Policy (Scrolled_Win,
H_Scrollbar_Policy => Policy_Automatic,
V_Scrollbar_Policy => Policy_Automatic);
Gtk_New (List);
Set_Selection_Mode (List, Mode => Selection_Single);
Add_With_Viewport (Scrolled_Win, List);
Set_Focus_Vadjustment (List, Get_Vadjustment (Scrolled_Win));
Set_Focus_Hadjustment (List, Get_Hadjustment (Scrolled_Win));
Open (Infile, In_File, "create_list.adb");
declare
S : String (1 .. 1024);
Last : Natural;
Item : Gtk_List_Item;
begin
while not End_Of_File (Infile) loop
Get_Line (File => Infile, Item => S, Last => Last);
Gtk_New (Item, Label => S (S'First .. Last));
Add (List, Item);
end loop;
end;
Close (Infile);
Gtk_New_Hbox (Hbox, Homogeneous => True, Spacing => 5);
Set_Border_Width (Hbox, Border_Width => 5);
Pack_Start (Vbox, Hbox,
Expand => False,
Fill => True,
Padding => 0);
Gtk_New (Button, Label => "Insert Row");
Pack_Start (Hbox, Button,
Expand => True,
Fill => True,
Padding => 0);
List_Cb.Object_Connect (Button, "clicked",
List_Cb.To_Marshaller (List_Add'Access),
Slot_Object => List);
Gtk_New (Button, Label => "Clear List");
Pack_Start (Hbox, Button,
Expand => True,
Fill => True,
Padding => 0);
List_Cb.Object_Connect (Button, "clicked",
List_Cb.To_Marshaller (List_Clear'Access),
Slot_Object => List);
Gtk_New (Button, Label => "Remove Selection");
Pack_Start (Hbox, Button,
Expand => True,
Fill => True,
Padding => 0);
List_Cb.Object_Connect (Button, "clicked",
List_Cb.To_Marshaller (List_Remove'Access),
Slot_Object => List);
Gtk_New_Hbox (Cbox, Homogeneous => False, Spacing => 0);
Pack_Start (Vbox, Cbox,
Expand => False,
Fill => True,
Padding => 0);
Gtk_New_Hbox (Hbox, Homogeneous => False, Spacing => 5);
Set_Border_Width (Hbox, Border_Width => 5);
Pack_Start (Cbox, Hbox,
Expand => True,
Fill => False,
Padding => 0);
Gtk_New (Label, Str => "Selection Mode :");
Pack_Start (Hbox, Label,
Expand => False,
Fill => True,
Padding => 0);
Omenu_Group := Widget_SList.Null_List;
Build_Option_Menu (List_Omenu, Omenu_Group,
Items, 0, Toggle_Sel_Mode'Access);
Pack_Start (Hbox, List_Omenu,
Expand => False,
Fill => True,
Padding => 0);
Show_All (Frame);
exception
when Name_Error =>
Ada.Text_IO.Put_Line ("File not found: create_list.adb");
end Run;
end Create_List;
|
