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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. --
-- --
-- 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 Glib; use Glib;
with Gdk.Color; use Gdk.Color;
with Gdk.Font; use Gdk.Font;
with Gtk.Box; use Gtk.Box;
with Gtk.Check_Button; use Gtk.Check_Button;
with Gtk.Enums; use Gtk.Enums;
with Gtk.Hbutton_Box; use Gtk.Hbutton_Box;
with Gtk.Handlers; use Gtk.Handlers;
with Gtk.Scrolled_Window; use Gtk.Scrolled_Window;
with Gtk.Text; use Gtk.Text;
with Gtk.Toggle_Button; use Gtk.Toggle_Button;
with Gtk; use Gtk;
with Ada.Text_IO; use Ada.Text_IO;
package body Create_Text is
package Text_Cb is new Handlers.User_Callback
(Gtk_Toggle_Button_Record, Gtk_Text);
type String_Access is access String;
type Text_Colors_Type is record
Red, Green, Blue : Gushort;
Name : String_Access;
end record;
type Text_Colors_Type_Array is array (Natural range <>) of
Text_Colors_Type;
Text_Colors : constant Text_Colors_Type_Array :=
((16#0#, 16#0#, 16#0#, new String'("black")),
(16#FFFF#, 16#FFFF#, 16#FFFF#, new String'("white")),
(16#FFFF#, 16#0#, 16#0#, new String'("red")),
(16#0#, 16#FFFF#, 16#0#, new String'("green")),
(16#0#, 16#0#, 16#FFFF#, new String'("blue")),
(16#0#, 16#FFFF#, 16#FFFF#, new String'("cyan")),
(16#FFFF#, 16#0#, 16#FFFF#, new String'("magenta")),
(16#FFFF#, 16#FFFF#, 16#0#, new String'("yellow")));
----------
-- Help --
----------
function Help return String is
begin
return "The @bGtk_Text@B widget allows you to display easily any kind of"
& " text in your applications. As you can see in this demo, this"
& " widget supports colors, text wrapping, images in the"
& " background,..."
& ASCII.LF
& "One important thing to note is that the text widget does not"
& " provide any scrolling in itself. Instead, you have to put it in a"
& " @bGtk_Scrolled_Window@B if you want some scrolling.";
end Help;
---------------------
-- Toggle_Editable --
---------------------
procedure Toggle_Editable (Toggle : access Gtk_Toggle_Button_Record'Class;
Text : in Gtk_Text)
is
begin
Set_Editable (Text, Get_Active (Toggle));
end Toggle_Editable;
---------------
-- Word_Wrap --
---------------
procedure Word_Wrap (Toggle : access Gtk_Toggle_Button_Record'Class;
Text : in Gtk_Text)
is
begin
Set_Word_Wrap (Text, Get_Active (Toggle));
end Word_Wrap;
---------
-- Run --
---------
procedure Run (Frame : access Gtk.Frame.Gtk_Frame_Record'Class) is
Box1,
Box2 : Gtk_Box;
Hbox : Gtk_HButton_Box;
Text : Gtk_Text;
Font : Gdk_Font;
Check : Gtk_Check_Button;
Scrolled : Gtk_Scrolled_Window;
Color_I, Color_J : Gdk_Color;
begin
Set_Label (Frame, "Text");
Gtk_New_Vbox (Box1, False, 0);
Add (Frame, Box1);
Gtk_New_Vbox (Box2, False, 10);
Set_Border_Width (Box2, 10);
Pack_Start (Box1, Box2, True, True, 0);
Show (Box2);
Gtk_New (Scrolled);
Pack_Start (Box2, Scrolled, True, True, 0);
Set_Policy (Scrolled, Policy_Never, Policy_Always);
Show (Scrolled);
Gtk_New (Text);
Set_Editable (Text, True);
Add (Scrolled, Text);
Grab_Focus (Text);
Freeze (Text);
Load (Font, "-adobe-courier-medium-r-normal--*-120-*-*-*-*-*-*");
for I in Text_Colors'Range loop
Insert (Text, Font,
White (Get_Colormap (Text)), Null_Color,
Text_Colors (I).Name.all & Ascii.HT, -1);
Set_Rgb (Color_I, Text_Colors (I).Red, Text_Colors (I).Green,
Text_Colors (I).Blue);
for J in Text_Colors'Range loop
Set_Rgb (Color_J, Text_Colors (J).Red, Text_Colors (J).Green,
Text_Colors (J).Blue);
Insert (Text, Font, Color_J, Color_I, "XYZ", -1);
end loop;
Insert (Text, Null_Font, Null_Color, Null_Color,
"" & Ascii.LF, -1);
end loop;
declare
Buffer : String (1 .. 1024);
Last : Natural;
Infile : File_Type;
begin
Open (Infile, In_File, "create_text.adb");
while not End_Of_File (Infile) loop
Get_Line (Infile, Buffer, Last);
Insert (Text, Null_Font, White (Get_Colormap (Text)),
Null_Color,
Buffer (1 .. Last) & Ascii.LF, Gint (Last) + 1);
end loop;
Close (Infile);
exception
when Name_Error =>
Put_Line ("File create_text.adb not found....");
end;
Thaw (Text);
Gtk_New (Hbox);
Pack_Start (Box2, Hbox, False, False, 0);
Gtk_New (Check, "Editable");
Pack_Start (Hbox, Check, False, False, 0);
Text_Cb.Connect (Check, "toggled",
Text_Cb.To_Marshaller (Toggle_Editable'Access),
Text);
Set_Active (Check, True);
Gtk_New (Check, "Wrap Words");
Pack_Start (Hbox, Check, False, False, 0);
Text_Cb.Connect (Check, "toggled",
Text_Cb.To_Marshaller (Word_Wrap'Access), Text);
Set_Active (Check, False);
Show_All (Frame);
end Run;
end Create_Text;
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