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| WITH Gtk.Main ; USE Gtk.Main ;
WITH Gtk.Window ; USE Gtk.Window ;
WITH Gtk.Enums ; USE Gtk.Enums ;
WITH Gtk.Button ; USE Gtk.Button ;
WITH Gtk.Alignment ; USE Gtk.Alignment ;
WITH Gtk.Box ; USE Gtk.Box ;
WITH Gtk.Gentry; USE Gtk.Gentry;
WITH Gtk.Widget ; USE Gtk.Widget ;
with Gtk.Handlers;
WITH Gtk.Drawing_Area; USE Gtk.Drawing_Area;
WITH Cairo ; USE Cairo ;
WITH Gdk.Color ; USE Gdk.Color ;
WITH Gdk.Cairo ; USE Gdk.Cairo ;
WITH Gtk.Style ; USE Gtk.Style ;
WITH Glib ; USE Glib ;
PROCEDURE dessine_avec_cairo IS
-----------------------
-- VARIABLES -- |
----------------------------------------------------------
win : Gtk_window ;
Btn1, Btn2 ,Btn3 : Gtk_Button ;
alignG, alignM ,alignD : Gtk_Alignment ;
Boite : Gtk_VBox ;
Boutons : Gtk_HBox ;
saisie : Gtk_Entry ;
zone_dessin : Gtk_Drawing_Area ;
----------------------------------------------------------
--Instanciation package(s) for connexion
----------------------------------------------------------
PACKAGE P_Callback IS NEW Gtk.Handlers.Callback(Gtk_Widget_Record);
USE P_Callback ;
PACKAGE P2_Callback IS NEW Gtk.Handlers.User_Callback(Gtk_Widget_Record , Boolean);
USE P2_Callback ;
----------------------------------------------------------
-- Handlers (or callbacks) |
----------------------------------------------------------
procedure Stop_Program(Emetteur : access Gtk_Widget_Record'class)
is
PRAGMA Unreferenced (Emetteur);
begin
Main_Quit;
end Stop_Program ;
function draw_callback (the_Widget : access Gtk_Widget_Record'Class ;
cairo_t : Cairo_Context ) return boolean
is
width : Allocation_Int ;
height : Allocation_Int ;
color : Gdk_Color ;
begin
Queue_Draw (Widget => zone_dessin);
width := Get_Allocation_Width (Widget => the_Widget) ;
height := Get_Allocation_Height (Widget => the_Widget) ;
Arc
(Cr => cairo_t ,
Xc => 2.0 ,
Yc => 2.0 ,
Radius => 2.0 ,
Angle1 => 0.0 ,
Angle2 => 2.0 * 3.14 );
color := Get_Fg
(Style => Get_Style (Widget => the_Widget) ,
State_Type => State_Active) ;
Set_Source_Color
(Cr => cairo_t ,
Color => color);
Set_Fill_Rule
(Cr => cairo_t ,
Fill_Rule => Cairo_Fill_Rule_Winding);
return false ;
end draw_callback ;
-------------------------------------------------
BEGIN
Init ;
----------------
-- NEW -- |
-------------------------------------------------
Gtk_New(zone_dessin);
Gtk_New(win);
Gtk_New(saisie);
Gtk_New(Btn1, "Bouton 1") ;
Gtk_New(Btn2, "Bouton 2") ;
Gtk_New(Btn3, "Bouton 3") ;
Gtk_New(alignG,0.0,1.0,1.0,1.0);
Gtk_New(alignM,0.5,1.0,1.0,1.0);
Gtk_New(alignD,1.0,1.0,1.0,1.0);
Gtk_New_VBox
(Boite, homogeneous => false, Spacing => 0) ;
Gtk_New_HBox
(Boutons, homogeneous => false, Spacing => 0) ;
---------------------------------
-- Add |
---------------------------------
alignG.add(Btn1) ;
alignM.add(Btn2) ;
alignD.add(Btn3) ;
win.Add(Boite);
------------------------------------------
-- Connect |
------------------------------------------
Connect(Widget => win ,
Name => "destroy" ,
Cb => Stop_Program'access);
Connect(Widget => zone_dessin ,
Name => "draw" ,
Cb => draw_callback'access);
------------------------------------------
-- Design Window |
------------------------------------------
Size_Allocate
(Widget => zone_dessin ,
Allocation => ( X => 0 , Y => 0 , Width => 150 , Height => 150 ) ) ;
Pack_Start
(In_Box => Boite ,
Child => zone_dessin ,
Expand => true ,
Fill => true );
Pack_Start
(In_Box => Boite ,
Child => saisie ,
Expand => false );
Pack_Start
(In_Box => Boite ,
Child => Boutons ,
Expand => true ,
Fill => true );
Pack_Start
(In_Box => Boutons ,
Child => alignG ,
Expand => true ,
Fill => true );
Pack_Start
(In_Box => Boutons ,
Child => alignM ,
Expand => true ,
Fill => true );
Pack_Start
(In_Box => Boutons ,
Child => alignD ,
Expand => true ,
Fill => true );
win.Set_Default_Size(600,500) ;
win.set_position(Win_Pos_Mouse) ;
win.set_opacity(0.7) ;
win.Show_all ;
Main ;
END dessine_avec_cairo ; |
