------------------------------------------------------------------------------
-- GtkAda - Ada95 binding for the Gimp Toolkit --
-- --
-- Copyright (C) 1998-2018, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, 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 MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
------------------------------------------------------------------------------
with Glib; use Glib;
with Gtk.Box; use Gtk.Box;
with Gtk.Button; use Gtk.Button;
with Gtk.Enums;
with Gtk.Frame; use Gtk.Frame;
with Gtk.Label; use Gtk.Label;
with Gtk.Separator; use Gtk.Separator;
with Gtk; use Gtk;
package body Create_Box is
procedure Add_Buttons (Vbox : Gtk_Box;
Message : String;
Homogeneous : Boolean;
Expand : Boolean := False;
Fill : Boolean := False);
-- Add the buttons within Vbox
----------
-- Help --
----------
function Help return String is
begin
return "This demo show how you can efficiently use the @bGtk_Box@B " &
"container." &
ASCII.LF &
ASCII.LF &
"The upper half shows the different " &
"combinations of the parameters @bHomogeneous@B, @bExpand@B and " &
"@bFill@B. Note that for homogeneous boxes, @bExpand@B is irrelevant."
& ASCII.LF &
" - @bHomogeneous@B: If True all the widgets in the box will have the "
& "same size as the largest child."
& ASCII.LF &
" - @bExpand@B: If True, the widget size will be bigger than the "
& "minimum requested if more space is available. Its exact size "
& "depends on the @bFill@B parameter"
& ASCII.LF &
" - @bFill@B: If False, the widget will be surrounded by empty space,"
& " but its real size will be the minimum it requested."
& ASCII.LF
& ASCII.LF &
"The second part of the demo shows the difference between "
& "@bPack_Start@B and @bPack_End@B. The two resulting groups are "
& "separated by a space that expands when the box is resized. This "
& "space of course exists only when the widgets do not expand. "
& "The buttons are inserted in the order specified (first button, "
& " second button, ...)";
end Help;
-----------------
-- Add_Buttons --
-----------------
procedure Add_Buttons (Vbox : Gtk_Box;
Message : String;
Homogeneous : Boolean;
Expand : Boolean := False;
Fill : Boolean := False)
is
Button : Gtk_Button;
Box : Gtk_Box;
Label : Gtk_Label;
begin
Gtk_New (Label, Message);
Pack_Start (Vbox, Label, Expand => False, Fill => False);
Gtk_New_Hbox (Box, Homogeneous => Homogeneous);
Pack_Start (Vbox, Box, Expand => False, Fill => False);
-- Use a function from one of the implemented interfaces.
-- This call is not needed, and is just here to check the binding
-- itself.
Set_Orientation (Box, Gtk.Enums.Orientation_Horizontal);
Gtk_New (Button, "Small");
Pack_Start (Box, Button, Expand => Expand, Fill => Fill);
Gtk_New (Button, "A bit longer");
Pack_Start (Box, Button, Expand => Expand, Fill => Fill);
Gtk_New (Button, "The longest button");
Pack_Start (Box, Button, Expand => Expand, Fill => Fill);
end Add_Buttons;
---------
-- Run --
---------
procedure Run (Frame : access Gtk.Frame.Gtk_Frame_Record'Class) is
Vbox : Gtk_Box;
Box : Gtk_Box;
Button : Gtk_Button;
Sep : Gtk_Separator;
begin
Gtk.Frame.Set_Label (Frame, "Boxes");
Gtk_New_Vbox (Vbox, Homogeneous => False, Spacing => 25);
Add (Frame, Vbox);
Gtk_New_Vbox (Box, Homogeneous => True);
Pack_Start (Vbox, Box, Expand => False, Fill => False);
Add_Buttons (Box, "Homogeneous => False, Expand => False",
Homogeneous => False, Expand => False, Fill => False);
Add_Buttons (Box, "Homogeneous => False, Expand => True, Fill => False",
Homogeneous => False, Expand => True, Fill => False);
Add_Buttons (Box, "Homogeneous => False, Expand => True, Fill => True",
Homogeneous => False, Expand => True, Fill => True);
Add_Buttons (Box, "Homogeneous => True, Fill => False",
Homogeneous => True, Fill => False);
Add_Buttons (Box, "Homogeneous => True, Fill => True",
Homogeneous => True, Fill => True);
Gtk_New_Hseparator (Sep);
Pack_Start (Vbox, Sep, Expand => False, Fill => True);
Gtk_New_Vbox (Box, Homogeneous => False);
Pack_Start (Vbox, Box, Expand => True, Fill => True, Padding => 10);
Gtk_New (Button, "Pack_Start, First Button");
Pack_Start (Box, Button, Expand => False, Fill => False);
Gtk_New (Button, "Pack_Start, Second Button");
Pack_Start (Box, Button, Expand => False, Fill => False);
Gtk_New (Button, "Pack_Start, Third Button");
Pack_Start (Box, Button, Expand => False, Fill => False);
Gtk_New (Button, "Pack_End, First Button");
Pack_End (Box, Button, Expand => False, Fill => False);
Gtk_New (Button, "Pack_End, Second Button");
Pack_End (Box, Button, Expand => False, Fill => False);
Gtk_New (Button, "Pack_End, Third Button");
Pack_End (Box, Button, Expand => False, Fill => False);
Show_All (Frame);
end Run;
end Create_Box;
