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-----------------------------------------------------------------------
-- GtkAda - Ada95 binding for the Gimp Toolkit --
-- --
-- Copyright (C) 2011-2013, AdaCore --
-- --
-- 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 System; use System;
-- with System.Address_Image;
with Ada.Exceptions;
with Ada.Text_IO; use Ada.Text_IO;
-- with Interfaces.C.Strings; use Interfaces.C.Strings;
with Glib; use Glib;
with Glib.Error; use Glib.Error;
with Glib.Object; use Glib.Object;
with Gtk.Box; use Gtk.Box;
with Gtk.Button; use Gtk.Button;
with Gtk.GEntry; use Gtk.GEntry;
with Gtk.Frame; use Gtk.Frame;
with Gtk.Text_Buffer; use Gtk.Text_Buffer;
with Gtk.Text_View; use Gtk.Text_View;
with Gtk.Widget;
with Common; use Common;
with Gtkada.Builder; use Gtkada.Builder;
package body Create_Gtkada_Builder is
Default_Filename : constant String := "gtkbuilder_example.xml";
-- This is the file from which we'll read our UI description.
procedure On_Button_Clicked (Button : access Gtk_Button_Record'Class);
-- Callback for a button click
procedure On_Btn_Concatenate_Clicked
(Builder : access Gtkada_Builder_Record'Class);
procedure On_Btn_Console_Greeting_Clicked
(Builder : access Gtkada_Builder_Record'Class);
function On_Window1_Delete_Event
(Builder : access Gtkada_Builder_Record'Class) return Boolean;
procedure On_Window1_Destroy
(Builder : access Gtkada_Builder_Record'Class);
procedure On_Print_To_Console (Object : access GObject_Record'Class);
-- Callbacks referenced by our XML UI definition. These match the
-- items in the Callback_Function_Name enumeration.
procedure Add_Custom_Widget (Box : Gtk_Hbox);
-- Add custom widgets from the file "gtkbuilder_custom_widget.xml"
-- to the given hbox
-----------------------
-- Add_Custom_Widget --
-----------------------
procedure Add_Custom_Widget (Box : Gtk_Hbox) is
Builder : Gtkada_Builder;
Error : GError;
begin
-- Create a builder
Gtk_New (Builder);
-- Load the custom widget from the XML description
Error := Add_From_File (Builder, "gtkbuilder_custom_widget.xml");
if Error /= null then
Put_Line ("Error [Create_Builder.Add_Custom_Widget]: "
& Get_Message (Error));
Error_Free (Error);
return;
end if;
-- Now get the widget...
declare
Custom_Widget : constant Gtk.Widget.Gtk_Widget :=
Get_Widget (Builder, "custom");
begin
-- ... And add it to our Box
Pack_Start (Box, Custom_Widget);
Gtk.Widget.Show_All (Custom_Widget);
end;
end Add_Custom_Widget;
-------------------------
-- On_Print_To_Console --
-------------------------
procedure On_Print_To_Console (Object : access GObject_Record'Class) is
Term1 : constant Gtk_Entry := Gtk_Entry (Object);
begin
Put_Line ("String 1 is: " & Get_Text (Term1));
end On_Print_To_Console;
-----------------------
-- On_Button_Clicked --
-----------------------
procedure On_Button_Clicked (Button : access Gtk_Button_Record'Class) is
pragma Unreferenced (Button);
Builder : Gtkada_Builder;
Error : GError;
begin
-- Create a new Gtkada_Builder object
Gtk_New (Builder);
-- Read in our XML file
Error := Add_From_File (Builder, Default_Filename);
if Error /= null then
Put_Line ("Error [Create_Builder.On_Button_Clicked]: "
& Get_Message (Error));
Error_Free (Error);
end if;
-- Do the necessary connections
Register_Handler
(Builder => Builder,
Handler_Name => "on_btn_concatenate_clicked",
Handler => On_Btn_Concatenate_Clicked'Access);
Register_Handler
(Builder => Builder,
Handler_Name => "on_btn_console_greeting_clicked",
Handler => On_Btn_Console_Greeting_Clicked'Access);
Register_Handler
(Builder => Builder,
Handler_Name => "on_window1_delete_event",
Handler => On_Window1_Delete_Event'Access);
Register_Handler
(Builder => Builder,
Handler_Name => "on_window1_destroy",
Handler => On_Window1_Destroy'Access);
Register_Handler
(Builder => Builder,
Handler_Name => "on_print_to_console",
Handler => On_Print_To_Console'Access);
Do_Connect (Builder);
-- Add a custom widget 3 times to the placeholder hbox
Add_Custom_Widget (Gtk_Hbox (Get_Widget (Builder, "placeholder_hbox")));
Add_Custom_Widget (Gtk_Hbox (Get_Widget (Builder, "placeholder_hbox")));
Add_Custom_Widget (Gtk_Hbox (Get_Widget (Builder, "placeholder_hbox")));
-- Find our main window, then display it and all of its children.
Gtk.Widget.Show_All (Get_Widget (Builder, "window1"));
end On_Button_Clicked;
--------------------------------
-- On_Btn_Concatenate_Clicked --
--------------------------------
procedure On_Btn_Concatenate_Clicked
(Builder : access Gtkada_Builder_Record'Class)
is
Buffer : constant Gtk_Text_Buffer := Get_Buffer
(Gtk.Text_View.Gtk_Text_View (Get_Widget (Builder, "textField")));
begin
Put_Line ("On_Btn_Concatenate_Clicked");
Insert_At_Cursor
(Buffer,
"Concatenated: " &
Get_Text (Gtk.GEntry.Gtk_Entry (Get_Widget (Builder, "term1"))) &
Get_Text (Gtk.GEntry.Gtk_Entry (Get_Widget (Builder, "term2"))) &
ASCII.LF);
exception
when Event : others =>
Put_Line ("Error: " & Ada.Exceptions.Exception_Information (Event));
end On_Btn_Concatenate_Clicked;
-------------------------------------
-- On_Btn_Console_Greeting_Clicked --
-------------------------------------
procedure On_Btn_Console_Greeting_Clicked
(Builder : access Gtkada_Builder_Record'Class)
is
pragma Unreferenced (Builder);
begin
Put_Line ("On_Btn_Console_Greeting_Clicked says: HELLO!!!");
end On_Btn_Console_Greeting_Clicked;
-----------------------------
-- On_Window1_Delete_Event --
-----------------------------
function On_Window1_Delete_Event
(Builder : access Gtkada_Builder_Record'Class)
return Boolean
is
pragma Unreferenced (Builder);
begin
Put_Line ("On_Window1_Delete_Event");
-- Stop unconditionally.
return False;
end On_Window1_Delete_Event;
------------------------
-- On_Window1_Destroy --
------------------------
procedure On_Window1_Destroy
(Builder : access Gtkada_Builder_Record'Class)
is
begin
-- We actually don't do much here, since within testgtk, we're not
-- the main window.
Put_Line ("On_Window1_Destroy");
-- Free memory associated to the builder
Unref (Builder);
end On_Window1_Destroy;
----------
-- Help --
----------
function Help return String is
begin
return "";
end Help;
---------
-- Run --
---------
procedure Run (Frame : access Gtk.Frame.Gtk_Frame_Record'Class) is
Box1 : Gtk_Box;
Button1 : Gtk_Button;
begin
Set_Label (Frame, "Builder");
Gtk_New_Vbox (Box1, False, 0);
Add (Frame, Box1);
Gtk_New (Button1, "Invoke Builder with file " & Default_Filename);
Button_Handler.Connect (Button1, "clicked", On_Button_Clicked'Access);
Pack_Start
(Box1, Button1, Expand => False, Fill => False, Padding => 10);
Show_All (Frame);
end Run;
end Create_Gtkada_Builder;
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