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161 | -- --
-- procedure Test_Gtk_Fixed Copyright (c) Dmitry A. Kazakov --
-- Test for renderer Luebeck --
-- Spring, 2006 --
-- --
-- Last revision : 07:53 21 Jul 2016 --
-- --
-- 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.Numerics.Float_Random; use Ada.Numerics.Float_Random;
with GLib; use GLib;
with GLib.Properties; use GLib.Properties;
with GLib.Values; use GLib.Values;
with Gtk.Enums; use Gtk.Enums;
with Gdk.Event; use Gdk.Event;
with Gtk.List_Store; use Gtk.List_Store;
with Gtk.Widget; use Gtk.Widget;
with Gtk.Window; use Gtk.Window;
with Gtk.Cell_Renderer; use Gtk.Cell_Renderer;
with Gtk.Cell_Renderer_Fixed; use Gtk.Cell_Renderer_Fixed;
with Gtk.Cell_Renderer_Text; use Gtk.Cell_Renderer_Text;
with Gtk.Tree_View_Column; use Gtk.Tree_View_Column;
with Gtk.Tree_Model; use Gtk.Tree_Model;
with Gtk.Tree_View; use Gtk.Tree_View;
with Gtk.Scrolled_Window; use Gtk.Scrolled_Window;
with Ada.Unchecked_Conversion;
with Gtk.Main;
with Gtk.Missed;
with Test_Gtk_Fixed_Handlers;
procedure Test_Gtk_Fixed is
Window : Gtk_Window;
Table_View : Gtk_Tree_View;
Scroller : Gtk_Scrolled_Window;
type Local_Callback is access procedure
( Cell : access Gtk_Cell_Renderer_Fixed_Record'Class;
Store : Gtk_List_Store
);
function "+" is
new Ada.Unchecked_Conversion
( Local_Callback,
Test_Gtk_Fixed_Handlers.Simple_Handler
);
procedure Commit
( Cell : access Gtk_Cell_Renderer_Fixed_Record'Class;
Store : Gtk_List_Store
) is
Row : constant Gtk_Tree_Iter :=
Get_Iter_From_String (Store, Get_Path (Cell));
Value : GValue;
begin
if Row /= Null_Iter then
Init (Value, GType_Double);
Set_Double (Value, Get_Property (Cell, Build ("value")));
Set_Value (Store, Row, 0, Value);
Unset (Value);
end if;
end Commit;
begin
Gtk.Main.Init;
Gtk.Window.Gtk_New (Window);
Window.Set_Title ("Test Fixed-Point Cell Renderer");
Window.On_Delete_Event (Gtk.Missed.Delete_Event_Handler'Access);
Window.On_Destroy (Gtk.Missed.Destroy_Handler'Access);
Gtk_New (Scroller);
Gtk_New (Table_View);
-- Creating a column of numbers (list store)
declare
Table : Gtk_List_Store;
begin
Gtk_New (Table, (0 => GType_Double));
declare
Row : Gtk_Tree_Iter := Null_Iter;
Value : GValue;
Source : Generator;
begin
Init (Value, GType_Double);
-- Filling the column with random numbers
for Item in 1..1000 loop
Table.Append (Row);
Set_Double
( Value,
GDouble (100.0 * (Random (Source) - 0.5))
);
Set_Value (Table, Row, 0, Value);
end loop;
-- Attaching the column store to its view
Table_View.Set_Model (To_Interface (Table));
Unset (Value);
end;
-- Creating columns in the view
declare
Column_No : GInt;
Column : Gtk_Tree_View_Column;
Numeric : Gtk_Cell_Renderer_Fixed;
Text : Gtk_Cell_Renderer_Text;
begin
-- The first column will use the fixed-point renderer
Gtk_New (Column);
Column.Set_Title ("Value");
Gtk_New (Numeric, 3);
Numeric.Set_Mode (Cell_Renderer_Mode_Editable);
Test_Gtk_Fixed_Handlers.Connect
( Numeric,
"commit",
+Commit'Access,
Table
);
Column.Pack_Start (Numeric, False);
-- Map column's renderer to the table's column 0
Column.Add_Attribute (Numeric, "value", 0);
Column_No := Table_View.Append_Column (Column);
Column.Set_Resizable (True);
Column.Set_Sort_Column_Id (0);
-- The second column uses the standard text renderer
Gtk_New (Column);
Column.Set_Title ("Text");
Gtk_New (Text);
Column.Pack_Start (Text, True);
-- Map column's renderer to the table's column 0
Column.Add_Attribute (Text, "text", 0);
Column_No := Table_View.Append_Column (Column);
Column.Set_Resizable (True);
Column.Set_Sort_Column_Id (0);
end;
end;
Scroller.Set_Policy (Policy_Automatic, Policy_Automatic);
Scroller.Add (Table_View);
Window.Add (Scroller);
Table_View.Show;
Scroller.Show;
Window.Show;
Gtk.Main.Main;
end Test_Gtk_Fixed;
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