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with Ada.Command_Line; use Ada.Command_Line;
with Ada.Text_IO; use Ada.Text_IO;
with Gtk.Main;
with Gtk.Window, Gtk.Button, Gtk.Box, Gtk.Separator, Gtk.Label, Gtk.Box;
use Gtk.Window, Gtk.Button, Gtk.Box, Gtk.Separator, Gtk.Label, Gtk.Box;
with Packbox; use Packbox;
procedure Packbox_Test is
Window : Gtk_Window;
Button : Gtk_Button;
Box1, Box2 : Gtk_Box;
Separator : Gtk_Separator;
Label : Gtk_Label;
Quit_Box : Gtk_Box;
Which : Integer;
begin
Gtk.Main.Init;
if Argument_Count /= 1 then
Put_Line ("usage: packbox_test num, where num is 1, 2, or 3.");
-- This just does cleanup in GtkAda and exits with an exit status of 1.
Gtk.Main.Gtk_Exit (1);
end if;
Which := Integer'Value (Argument (1));
-- Create our window
Gtk_New (Window);
-- You should always remember to connect the delete_event signal
-- to the main window. This is very important for proper intuitive
-- behavior.
Return_Handlers.Connect
(Window, "delete_event",
Return_Handlers.To_Marshaller (Delete_Event'Access));
Set_Border_Width (Window, 10);
-- We create a vertical box (Vbox) to pack the horizontal boxes into.
-- This allows us to stack the horizontal boxes filled with buttons one
-- on top of the other in this vbox.
Gtk_New_Vbox (Box => Box1, Homogeneous => False, Spacing => 0);
-- Which example to show. These correspond to the pictures above.
case Which is
when 1 =>
-- create a new label.
Gtk_New (Label, "Gtk_New_Hbox (Homogeneous => False, Spacing => 0);");
-- Align the label to the left side. We'll discuss this function and
-- others in the section on Widget Attributes.
Set_Alignment (Label, 0.0, 0.0);
-- Pack the label into the vertical box (vbox box1). Remember that
-- widgets added to a vbox will be packed one on top of the other in
-- order.
Pack_Start
(In_Box => Box1,
Child => Label,
Expand => False,
Fill => False,
Padding => 0);
-- Call our make box function
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => False,
Fill => False,
Padding => 0);
Pack_Start
(In_Box => Box1,
Child => Box2,
Expand => False,
Fill => False,
Padding => 0);
-- Call our make box function
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => True,
Fill => False,
Padding => 0);
Pack_Start
(In_Box => Box1,
Child => Box2,
Expand => False,
Fill => False,
Padding => 0);
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => True,
Fill => True,
Padding => 0);
Pack_Start
(In_Box => Box1,
Child => Box2,
Expand => False,
Fill => False,
Padding => 0);
-- Creates a separator, we'll learn more about these later,
-- but they are quite simple.
Gtk_New_Hseparator (Separator);
-- Pack the separator into the vbox. Remember each of these
-- widgets is being packed into a vbox, so they'll be stacked
-- vertically.
Pack_Start
(In_Box => Box1,
Child => Separator,
Expand => False,
Fill => True,
Padding => 5);
-- Create another new label.
Gtk_New (Label, "Gtk_New_Hbox (Homogeneous => True, Spacing => 0);");
Set_Alignment (Label, 0.0, 0.0);
Pack_Start (Box1, Label, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box (True, 0, True, False, 0);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box (True, 0, True, True, 0);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
-- Another new separator.
Gtk_New_Hseparator (Separator);
Pack_Start (Box1, Separator,
Expand => False, Fill => True, Padding => 5);
when 2 =>
-- Create a new label, remember Box1 is a Vbox as created
-- near the beginning of Packbox_Test
Gtk_New (Label,
"Gtk_New_Hbox (Homogeneous => False, Spacing => 10);");
Set_Alignment (Label, 0.0, 0.0);
Pack_Start
(Box1, Label, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box
(Homogeneous => False,
Spacing => 10,
Expand => True,
Fill => False,
Padding => 0);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box
(Homogeneous => False,
Spacing => 10,
Expand => True,
Fill => True,
Padding => 0);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
Gtk_New_Hseparator (Separator);
Pack_Start
(Box1, Separator,
Expand => False, Fill => True, Padding => 5);
Gtk_New (Label, "Gtk_New_Hbox (Homogeneous => False, Spacing => 0);");
Set_Alignment (Label, 0.0, 0.0);
Pack_Start
(Box1, Label, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => True,
Fill => False,
Padding => 10);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => True,
Fill => True,
Padding => 10);
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
Gtk_New_Hseparator (Separator);
Pack_Start
(Box1, Separator, Expand => False, Fill => True, Padding => 5);
when 3 =>
-- This demonstrates the ability to use Pack_End to
-- right justify widgets. First, we create a new box as before.
Box2 := Make_Box
(Homogeneous => False,
Spacing => 0,
Expand => False,
Fill => False,
Padding => 0);
-- Create the label that will be put at the end.
Gtk_New (Label, "end");
-- Pack it using Pack_End, so it is put on the right
-- side of the Hbox created in the Make_Box() call.
Pack_End (Box2, Label, Expand => False, Fill => False, Padding => 0);
-- Pack Box2 into Box1 (the Vbox remember ? :)
Pack_Start (Box1, Box2, Expand => False, Fill => False, Padding => 0);
-- A separator for the bottom.
Gtk_New_Hseparator (Separator);
-- This explicitly sets the separator to 400 pixels wide by 5 pixels
-- high. This is so the hbox we created will also be 400 pixels wide,
-- and the "end" label will be separated from the other labels in the
-- hbox. Otherwise, all the widgets in the hbox would be packed as
-- close together as possible.
Set_Usize (Separator, 400, 5);
-- pack the separator into the Vbox (Box1) created near the start
-- of Packbox_Test
Pack_Start
(Box1, Separator, Expand => False, Fill => True, Padding => 5);
when others =>
raise Program_Error;
end case;
-- Create another new Hbox.. remember we can use as many as we need!
Gtk_New_Hbox (Quit_Box, Homogeneous => False, Spacing => 0);
-- Our quit button.
Gtk_New (Button, "Quit");
-- Setup the signal to terminate the program when the button is clicked
Handlers.Object_Connect
(Button, "clicked",
Handlers.To_Marshaller (Quit'Access),
Window);
-- Pack the button into the quitbox.
Pack_Start (Quit_Box, Button, Expand => True, Fill => False, Padding => 0);
-- pack the quit box into the Vbox (Box1)
Pack_Start (Box1, Quit_Box, False, False, 0);
-- Pack the Vbox (Box1) which now contains all our widgets, into the
-- main window.
Add (Window, Box1);
-- Show the window and all its children at once
Show_All (Window);
-- And of course, our main function.
Gtk.Main.Main;
-- Control returns here when Gtk.Main.Main_Quit is called, but not when
-- Gtk_Exit is used.
Put_Line ("Exiting of Packbox_Test");
end Packbox_Test;
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